* [RESEND PATCH V8 1/3] MAINTAINERS: da7280 updates to the Dialog Semiconductor search terms
2020-02-11 1:13 [RESEND PATCH V8 0/3] da7280: haptic driver submission Roy Im
@ 2020-02-11 1:13 ` Roy Im
2020-02-11 1:13 ` [RESEND PATCH V8 2/3] dt-bindings: input: Add document bindings for DA7280 Roy Im
2020-02-11 1:13 ` Roy Im
2 siblings, 0 replies; 8+ messages in thread
From: Roy Im @ 2020-02-11 1:13 UTC (permalink / raw)
To: David S. Miller, Jonathan Cameron, Mauro Carvalho Chehab,
Rob Herring, linux-kernel
Cc: Greg KH, Support Opensource
This patch adds the da7280 bindings doc and driver to the Dialog
Semiconductor support list.
Signed-off-by: Roy Im <roy.im.opensource@diasemi.com>
---
v8: No changes.
v7: No changes.
v6: No changes.
v5: No changes.
v4: No changes.
v3: No changes.
v2: No changes.
MAINTAINERS | 2 ++
1 file changed, 2 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index 56765f5..3f71379 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4856,6 +4856,7 @@ S: Supported
F: Documentation/hwmon/da90??.rst
F: Documentation/devicetree/bindings/mfd/da90*.txt
F: Documentation/devicetree/bindings/input/da90??-onkey.txt
+F: Documentation/devicetree/bindings/input/dlg,da72??.txt
F: Documentation/devicetree/bindings/thermal/da90??-thermal.txt
F: Documentation/devicetree/bindings/regulator/da92*.txt
F: Documentation/devicetree/bindings/regulator/slg51000.txt
@@ -4865,6 +4866,7 @@ F: drivers/gpio/gpio-da90??.c
F: drivers/hwmon/da90??-hwmon.c
F: drivers/iio/adc/da91??-*.c
F: drivers/input/misc/da90??_onkey.c
+F: drivers/input/misc/da72??.[ch]
F: drivers/input/touchscreen/da9052_tsi.c
F: drivers/leds/leds-da90??.c
F: drivers/mfd/da903x.c
--
end-of-patch for RESEND PATCH V8
^ permalink raw reply related [flat|nested] 8+ messages in thread
* [RESEND PATCH V8 0/3] da7280: haptic driver submission
@ 2020-02-11 1:13 Roy Im
2020-02-11 1:13 ` [RESEND PATCH V8 1/3] MAINTAINERS: da7280 updates to the Dialog Semiconductor search terms Roy Im
` (2 more replies)
0 siblings, 3 replies; 8+ messages in thread
From: Roy Im @ 2020-02-11 1:13 UTC (permalink / raw)
To: David S. Miller, Uwe Kleine-Koenig, Dmitry Torokhov, Greg KH,
Lee Jones, Mark Rutland, Mauro Carvalho Chehab, Maximilian Luz,
Rob Herring, Rob Herring, Thierry Reding
Cc: Support Opensource, devicetree, linux-input, linux-kernel
This patch adds support for the Dialog DA7280 Haptic driver IC.
In this patch set the following is provided:
[PATCH V8 1/3] MAINTAINERS file update for DA7280
[PATCH V8 2/3] DA7280 DT Binding
[PATCH V8 3/3] DA7280 Driver
This patch applies against linux-next and v5.5
Thank you,
Roy Im, Dialog Semiconductor Ltd.
Roy Im (3):
MAINTAINERS: da7280 updates to the Dialog Semiconductor search terms
dt-bindings: input: Add document bindings for DA7280
Input: new da7280 haptic driver
.../devicetree/bindings/input/dlg,da7280.txt | 109 ++
MAINTAINERS | 2 +
drivers/input/misc/Kconfig | 13 +
drivers/input/misc/Makefile | 1 +
drivers/input/misc/da7280.c | 1688 ++++++++++++++++++++
drivers/input/misc/da7280.h | 412 +++++
6 files changed, 2225 insertions(+)
create mode 100644 Documentation/devicetree/bindings/input/dlg,da7280.txt
create mode 100644 drivers/input/misc/da7280.c
create mode 100644 drivers/input/misc/da7280.h
--
end-of-patch for RESEND PATCH V8
^ permalink raw reply [flat|nested] 8+ messages in thread
* [RESEND PATCH V8 2/3] dt-bindings: input: Add document bindings for DA7280
2020-02-11 1:13 [RESEND PATCH V8 0/3] da7280: haptic driver submission Roy Im
2020-02-11 1:13 ` [RESEND PATCH V8 1/3] MAINTAINERS: da7280 updates to the Dialog Semiconductor search terms Roy Im
@ 2020-02-11 1:13 ` Roy Im
2020-02-11 1:13 ` Roy Im
2 siblings, 0 replies; 8+ messages in thread
From: Roy Im @ 2020-02-11 1:13 UTC (permalink / raw)
To: Dmitry Torokhov, Mark Rutland, Rob Herring
Cc: Support Opensource, devicetree, linux-input, linux-kernel
Add device tree binding information for DA7280 haptic driver.
Example bindings for DA7280 are added.
Reviewed-by: Rob Herring <robh@kernel.org>.
Signed-off-by: Roy Im <roy.im.opensource@diasemi.com>
---
v8: Updated descriptions for new properties.
v7: No changes.
v6: No changes.
v5: Updated descriptions and fixed errors.
v4: Fixed commit message, properties.
v3: Fixed subject format.
v2: No changes
.../devicetree/bindings/input/dlg,da7280.txt | 109 +++++++++++++++++++++
1 file changed, 109 insertions(+)
create mode 100644 Documentation/devicetree/bindings/input/dlg,da7280.txt
diff --git a/Documentation/devicetree/bindings/input/dlg,da7280.txt b/Documentation/devicetree/bindings/input/dlg,da7280.txt
new file mode 100644
index 0000000..e6b719d
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/dlg,da7280.txt
@@ -0,0 +1,109 @@
+Dialog Semiconductor DA7280 Haptics bindings
+
+Required properties:
+- compatible: Should be "dlg,da7280".
+- reg: Specifies the I2C slave address.
+
+- interrupt-parent : Specifies the phandle of the interrupt controller to
+ which the IRQs from DA7280 are delivered to.
+
+- dlg,actuator-type: Set Actuator type. it should be one of:
+ "LRA" - Linear Resonance Actuator type.
+ "ERM-bar" - Bar type Eccentric Rotating Mass.
+ "ERM-coin" - Coin type Eccentric Rotating Mass.
+
+- dlg,const-op-mode: Haptic operation mode for FF_CONSTANT.
+ Possible values:
+ 1 - Direct register override(DRO) mode triggered by i2c(default),
+ 2 - PWM data source mode controlled by PWM duty,
+- dlg,periodic-op-mode: Haptic operation mode for FF_PERIODIC.
+ Possible values:
+ 1 - Register triggered waveform memory(RTWM) mode, the pattern
+ assigned to the PS_SEQ_ID played as much times as PS_SEQ_LOOP,
+ 2 - Edge triggered waveform memory(ETWM) mode, external GPI(N)
+ control are required to enable/disable and it needs to keep
+ device enabled by sending magnitude (X > 0),
+ the pattern is assigned to the GPI(N)_SEQUENCE_ID below.
+ The default value is 1 for both of the operation modes.
+ For more details, please see the datasheet.
+
+- dlg,nom-microvolt: Nominal actuator voltage rating.
+ Valid values: 0 - 6000000.
+- dlg,abs-max-microvolt: Absolute actuator maximum voltage rating.
+ Valid values: 0 - 6000000.
+- dlg,imax-microamp: Actuator max current rating.
+ Valid values: 0 - 252000.
+ Default: 130000.
+- dlg,impd-micro-ohms: the impedance of the actuator in micro ohms.
+ Valid values: 0 - 1500000000.
+
+Optional properties:
+- pwms : phandle to the physical PWM(Pulse Width Modulation) device.
+ PWM properties should be named "pwms". And number of cell is different
+ for each pwm device.
+ (See Documentation/devicetree/bindings/pwm/pwm.txt
+ for further information relating to pwm properties)
+
+- dlg,ps-seq-id: the PS_SEQ_ID(pattern ID in waveform memory inside chip)
+ to play back when RTWM-MODE is enabled.
+ Valid range: 0 - 15.
+- dlg,ps-seq-loop: the PS_SEQ_LOOP, Number of times the pre-stored sequence
+ pointed to by PS_SEQ_ID or GPI(N)_SEQUENCE_ID is repeated.
+ Valid range: 0 - 15.
+- dlg,gpiN-seq-id: the GPI(N)_SEQUENCE_ID, pattern to play
+ when gpi0 is triggered, 'N' must be 0 - 2.
+ Valid range: 0 - 15.
+- dlg,gpiN-mode: the pattern mode which can select either
+ "Single-pattern" or "Multi-pattern", 'N' must be 0 - 2.
+- dlg,gpiN-polarity: gpiN polarity which can be chosen among
+ "Rising-edge", "Falling-edge" and "Both-edge",
+ 'N' must be 0 - 2
+ Haptic will work by this edge option in case of ETWM mode.
+
+- dlg,resonant-freq-hz: use in case of LRA.
+ the frequency range: 50 - 300.
+ Default: 205.
+
+- dlg,bemf-sens-enable: Enable for internal loop computations.
+- dlg,freq-track-enable: Enable for resonant frequency tracking.
+- dlg,acc-enable: Enable for active acceleration.
+- dlg,rapid-stop-enable: Enable for rapid stop.
+- dlg,amp-pid-enable: Enable for the amplitude PID.
+- dlg,mem-array: Customized waveform memory(patterns) data downloaded to
+ the device during initialization. This is an array of 100 values(u8).
+
+For further information, see device datasheet.
+
+======
+
+Example:
+
+ haptics: da7280-haptics@4a {
+ compatible = "dlg,da7280";
+ reg = <0x4a>;
+ interrupt-parent = <&gpio6>;
+ interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+ dlg,actuator-type = "LRA";
+ dlg,dlg,const-op-mode = <1>;
+ dlg,dlg,periodic-op-mode = <1>;
+ dlg,nom-microvolt = <2000000>;
+ dlg,abs-max-microvolt = <2000000>;
+ dlg,imax-microamp = <170000>;
+ dlg,resonant-freq-hz = <180>;
+ dlg,impd-micro-ohms = <10500000>;
+ dlg,freq-track-enable;
+ dlg,rapid-stop-enable;
+ dlg,mem-array = <
+ 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
+ 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
+ 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
+ 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
+ 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
+ 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
+ 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
+ 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
+ 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
+ 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
+ >;
+
+ };
--
end-of-patch for RESEND PATCH V8
^ permalink raw reply related [flat|nested] 8+ messages in thread
* [RESEND PATCH V8 3/3] Input: new da7280 haptic driver
2020-02-11 1:13 [RESEND PATCH V8 0/3] da7280: haptic driver submission Roy Im
@ 2020-02-11 1:13 ` Roy Im
2020-02-11 1:13 ` [RESEND PATCH V8 2/3] dt-bindings: input: Add document bindings for DA7280 Roy Im
2020-02-11 1:13 ` Roy Im
2 siblings, 0 replies; 8+ messages in thread
From: Roy Im @ 2020-02-11 1:13 UTC (permalink / raw)
To: Uwe Kleine-Koenig, Bartosz Golaszewski, Brian Masney,
Dmitry Torokhov, Greg KH, Lee Jones, Luca Weiss, Maximilian Luz,
Pascal PAILLET-LME, Rob Herring, Samuel Ortiz, Thierry Reding,
Thomas Gleixner
Cc: Support Opensource, linux-input, linux-kernel, linux-pwm
Adds support for the Dialog DA7280 LRA/ERM Haptic Driver with
multiple mode and integrated waveform memory and wideband support.
It communicates via an I2C bus to the device.
Signed-off-by: Roy Im <roy.im.opensource@diasemi.com>
---
v8:
- Added changes to support FF_PERIODIC/FF_CUSTOM and FF_CONSTANT.
- Updated the dt-related code.
- Removed memless related functions.
v7:
- Added more attributes to handle one value per file.
- Replaced and updated the dt-related code and functions called.
- Fixed error/functions.
- Rebased to v4.19-rc6.
v6: No changes.
v5: Fixed errors in Kconfig file.
v4: Updated code as dt-bindings are changed.
v3: No changes.
v2: Fixed kbuild error/warning
drivers/input/misc/Kconfig | 13 +
drivers/input/misc/Makefile | 1 +
drivers/input/misc/da7280.c | 1688 +++++++++++++++++++++++++++++++++++++++++++
drivers/input/misc/da7280.h | 412 +++++++++++
4 files changed, 2114 insertions(+)
create mode 100644 drivers/input/misc/da7280.c
create mode 100644 drivers/input/misc/da7280.h
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index 7e2e658..e2bf442 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -879,4 +879,17 @@ config INPUT_STPMIC1_ONKEY
To compile this driver as a module, choose M here: the
module will be called stpmic1_onkey.
+config INPUT_DA7280_HAPTICS
+ tristate "Dialog Semiconductor DA7280 haptics support"
+ depends on INPUT && I2C
+ select INPUT_FF_MEMLESS
+ select REGMAP_I2C
+ help
+ Say Y to enable support for the Dialog DA7280 haptics driver.
+ The haptics can be controlled by i2c communication,
+ or by PWM input, or by GPI.
+
+ To compile this driver as a module, choose M here: the
+ module will be called da7280.
+
endif
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
index 8fd187f..71dc381 100644
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -25,6 +25,7 @@ obj-$(CONFIG_INPUT_CMA3000) += cma3000_d0x.o
obj-$(CONFIG_INPUT_CMA3000_I2C) += cma3000_d0x_i2c.o
obj-$(CONFIG_INPUT_COBALT_BTNS) += cobalt_btns.o
obj-$(CONFIG_INPUT_CPCAP_PWRBUTTON) += cpcap-pwrbutton.o
+obj-$(CONFIG_INPUT_DA7280_HAPTICS) += da7280.o
obj-$(CONFIG_INPUT_DA9052_ONKEY) += da9052_onkey.o
obj-$(CONFIG_INPUT_DA9055_ONKEY) += da9055_onkey.o
obj-$(CONFIG_INPUT_DA9063_ONKEY) += da9063_onkey.o
diff --git a/drivers/input/misc/da7280.c b/drivers/input/misc/da7280.c
new file mode 100644
index 0000000..4d1d1fc
--- /dev/null
+++ b/drivers/input/misc/da7280.c
@@ -0,0 +1,1688 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * DA7280 Haptic device driver
+ *
+ * Copyright (c) 2019 Dialog Semiconductor.
+ * Author: Roy Im <Roy.Im.Opensource@diasemi.com>
+ */
+
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/pwm.h>
+#include <linux/regmap.h>
+#include <linux/workqueue.h>
+#include <linux/uaccess.h>
+#include "da7280.h"
+
+/* uV unit for voltage rate */
+#define DA7280_VOLTAGE_RATE_MAX 6000000
+#define DA7280_VOLTAGE_RATE_STEP 23400
+#define DA7280_NOMMAX_DFT 0x6B
+#define DA7280_ABSMAX_DFT 0x78
+
+#define DA7280_IMPD_MAX 1500000000
+#define DA7280_IMPD_DEFAULT 22000000
+
+#define DA7280_IMAX_DEFAULT 0x0E
+/* uA unit step and limit for IMAX*/
+#define DA7280_IMAX_STEP 7200
+#define DA7280_IMAX_LIMIT 252000
+
+#define DA7280_RESONT_FREQH_DFT 0x39
+#define DA7280_RESONT_FREQL_DFT 0x32
+#define DA7280_MIN_RESONAT_FREQ_HZ 50
+#define DA7280_MAX_RESONAT_FREQ_HZ 300
+#define DA7280_MIN_PWM_FREQ_KHZ 10
+#define DA7280_MAX_PWM_FREQ_KHZ 250
+
+#define DA7280_SEQ_ID_MAX 15
+#define DA7280_SEQ_LOOP_MAX 15
+#define DA7280_GPI1_SEQ_ID_DEFT 0x0
+
+#define DA7280_SNP_MEM_SIZE 100
+#define DA7280_SNP_MEM_MAX DA7280_SNP_MEM_99
+
+#define IRQ_NUM 3
+
+#define DA7280_SKIP_INIT 0x100
+
+#define DA7280_FF_EFFECT_COUNT_MAX 15
+
+enum da7280_haptic_dev_t {
+ DA7280_LRA = 0,
+ DA7280_ERM_BAR = 1,
+ DA7280_ERM_COIN = 2,
+ DA7280_DEV_MAX,
+};
+
+enum da7280_op_mode {
+ DA7280_INACTIVE = 0,
+ DA7280_DRO_MODE = 1,
+ DA7280_PWM_MODE = 2,
+ DA7280_RTWM_MODE = 3,
+ DA7280_ETWM_MODE = 4,
+ DA7280_OPMODE_MAX,
+};
+
+#define DA7280_FF_CONSTANT_DRO 1
+#define DA7280_FF_PERIODIC_PWM 2
+#define DA7280_FF_PERIODIC_RTWM 1
+#define DA7280_FF_PERIODIC_ETWM 2
+
+#define DA7280_FF_PERIODIC_MODE DA7280_RTWM_MODE
+#define DA7280_FF_CONSTANT_MODE DA7280_DRO_MODE
+
+enum da7280_custom_effect_param {
+ DA7280_CUSTOM_DATA_SEQ_ID_IDX = 0,
+ DA7280_CUSTOM_DATA_SEQ_LOOP_IDX = 1,
+ DA7280_CUSTOM_DATA_LEN = 2,
+};
+
+struct da7280_gpi_ctl {
+ u8 seq_id;
+ u8 mode;
+ u8 polarity;
+};
+
+struct da7280_haptic {
+ struct regmap *regmap;
+ struct input_dev *input_dev;
+ struct device *dev;
+ struct i2c_client *client;
+ struct pwm_device *pwm_dev;
+
+ bool legacy;
+ int pwm_id;
+ struct delayed_work work_duration;
+ struct work_struct work_playback;
+ struct work_struct work_setgain;
+ int val;
+ u16 gain;
+
+ s16 level;
+
+ u8 dev_type;
+ u8 op_mode;
+ u8 const_op_mode;
+ u8 periodic_op_mode;
+ u16 nommax;
+ u16 absmax;
+ u32 imax;
+ u32 impd;
+ u32 resonant_freq_h;
+ u32 resonant_freq_l;
+ bool bemf_sense_en;
+ bool freq_track_en;
+ bool acc_en;
+ bool rapid_stop_en;
+ bool amp_pid_en;
+ u8 ps_seq_id;
+ u8 ps_seq_loop;
+ struct da7280_gpi_ctl gpi_ctl[3];
+ bool mem_update;
+ u8 snp_mem[DA7280_SNP_MEM_SIZE];
+ u8 enabled;
+ int length_ms;
+};
+
+static bool da7280_volatile_register(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case DA7280_IRQ_EVENT1:
+ case DA7280_IRQ_EVENT_WARNING_DIAG:
+ case DA7280_IRQ_EVENT_SEQ_DIAG:
+ case DA7280_IRQ_STATUS1:
+ case DA7280_TOP_CTL1:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static const struct regmap_config da7280_haptic_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = DA7280_SNP_MEM_MAX,
+ .volatile_reg = da7280_volatile_register,
+};
+
+static int da7280_haptic_mem_update(struct da7280_haptic *haptics)
+{
+ int error;
+ unsigned int val;
+
+ /* It is recommended to update the patterns
+ * during haptic is not working in order to avoid conflict
+ */
+ error = regmap_read(haptics->regmap, DA7280_IRQ_STATUS1, &val);
+ if (error)
+ return error;
+ if (val & DA7280_STA_WARNING_MASK) {
+ dev_warn(haptics->dev,
+ "Warning! Please check HAPTIC status.\n");
+ return -EBUSY;
+ }
+
+ /* Patterns are not updated if the lock bit is enabled */
+ val = 0;
+ error = regmap_read(haptics->regmap, DA7280_MEM_CTL2, &val);
+ if (error)
+ return error;
+ if (~val & DA7280_WAV_MEM_LOCK_MASK) {
+ dev_warn(haptics->dev,
+ "Please unlock the bit first\n");
+ return -EACCES;
+ }
+
+ /* Set to Inactive mode to make sure safety */
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_CTL1,
+ DA7280_OPERATION_MODE_MASK,
+ 0);
+ if (error)
+ return error;
+
+ error = regmap_read(haptics->regmap, DA7280_MEM_CTL1, &val);
+ if (error)
+ return error;
+
+ return regmap_bulk_write(haptics->regmap, val,
+ haptics->snp_mem, DA7280_SNP_MEM_MAX - val + 1);
+}
+
+static int da7280_haptic_set_pwm(struct da7280_haptic *haptics)
+{
+ struct pwm_args pargs;
+ u64 period_mag_multi;
+ unsigned int pwm_duty;
+ int error;
+
+ pwm_get_args(haptics->pwm_dev, &pargs);
+ period_mag_multi =
+ (u64)(pargs.period * haptics->gain);
+ if (haptics->acc_en)
+ pwm_duty =
+ (unsigned int)(period_mag_multi >> 16);
+ else
+ pwm_duty =
+ (unsigned int)((period_mag_multi >> 16)
+ + pargs.period) / 2;
+
+ error = pwm_config(haptics->pwm_dev,
+ pwm_duty, pargs.period);
+ if (error) {
+ dev_err(haptics->dev,
+ "failed to configure pwm : %d\n", error);
+ return error;
+ }
+
+ error = pwm_enable(haptics->pwm_dev);
+ if (error) {
+ pwm_disable(haptics->pwm_dev);
+ dev_err(haptics->dev,
+ "failed to enable haptics pwm device : %d\n", error);
+ }
+
+ return error;
+}
+
+static void da7280_haptic_enable(struct da7280_haptic *haptics)
+{
+ int error = 0;
+
+ if (haptics->enabled)
+ return;
+
+ switch (haptics->op_mode) {
+ case DA7280_DRO_MODE:
+ /* the valid range check when acc_en is enabled */
+ if (haptics->acc_en && haptics->level > 0x7F)
+ haptics->level = 0x7F;
+ else if (haptics->level > 0xFF)
+ haptics->level = 0xFF;
+
+ /* Set driver level
+ * as a % of ACTUATOR_NOMMAX(nommax)
+ */
+ error = regmap_write(haptics->regmap,
+ DA7280_TOP_CTL2,
+ haptics->level);
+ if (error) {
+ dev_err(haptics->dev,
+ "i2c err (%d) for driving level (%d)\n",
+ error, haptics->level);
+ return;
+ }
+ break;
+ case DA7280_PWM_MODE:
+ if (da7280_haptic_set_pwm(haptics))
+ return;
+ break;
+ case DA7280_RTWM_MODE:
+ /* The pattern will be played by
+ * the PS_SEQ_ID and the PS_SEQ_LOOP
+ */
+ case DA7280_ETWM_MODE:
+ /* The pattern will be played by
+ * the GPI[N] state, GPI(N)_SEQUENCE_ID
+ * and the PS_SEQ_LOOP.
+ * please see the datasheet for the details.
+ */
+ break;
+ default:
+ dev_err(haptics->dev,
+ "Invalid Mode(%d)\n", haptics->op_mode);
+ return;
+ }
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_CTL1,
+ DA7280_OPERATION_MODE_MASK,
+ haptics->op_mode);
+ if (error) {
+ dev_err(haptics->dev,
+ "i2c err for op_mode setting : %d\n", error);
+ return;
+ }
+
+ if (haptics->op_mode == DA7280_PWM_MODE ||
+ haptics->op_mode == DA7280_RTWM_MODE) {
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_CTL1,
+ DA7280_SEQ_START_MASK,
+ DA7280_SEQ_START_MASK);
+ if (error) {
+ dev_err(haptics->dev,
+ "i2c err for sequence triggering : %d\n",
+ error);
+ return;
+ }
+ }
+
+ haptics->enabled = true;
+ if (haptics->length_ms && haptics->op_mode == DA7280_DRO_MODE)
+ schedule_delayed_work(&haptics->work_duration,
+ msecs_to_jiffies(haptics->length_ms));
+}
+
+static void da7280_haptic_disable(struct da7280_haptic *haptics)
+{
+ int error;
+
+ if (!haptics->enabled)
+ return;
+
+ /* Set to Inactive mode */
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_CTL1,
+ DA7280_OPERATION_MODE_MASK, 0);
+ if (error) {
+ dev_err(haptics->dev,
+ "i2c err for op_mode off : %d\n", error);
+ return;
+ }
+
+ switch (haptics->op_mode) {
+ case DA7280_DRO_MODE:
+ error = regmap_write(haptics->regmap,
+ DA7280_TOP_CTL2, 0);
+ if (error) {
+ dev_err(haptics->dev,
+ "i2c err for DRO mode off : %d\n",
+ error);
+ return;
+ }
+ break;
+ case DA7280_PWM_MODE:
+ pwm_disable(haptics->pwm_dev);
+ break;
+ case DA7280_RTWM_MODE:
+ case DA7280_ETWM_MODE:
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_CTL1,
+ DA7280_SEQ_START_MASK, 0);
+ if (error) {
+ dev_err(haptics->dev,
+ "i2c err for RTWM or ETWM mode off : %d\n",
+ error);
+ return;
+ }
+ break;
+ default:
+ dev_err(haptics->dev,
+ "Invalid Mode(%d)\n", haptics->op_mode);
+ return;
+ }
+
+ haptics->enabled = false;
+}
+
+static void da7280_haptic_work_duration(struct work_struct *work)
+{
+ struct da7280_haptic *haptics =
+ container_of(work, struct da7280_haptic, work_duration.work);
+
+ da7280_haptic_disable(haptics);
+}
+
+static void da7280_haptic_work_playback(struct work_struct *work)
+{
+ struct da7280_haptic *haptics =
+ container_of(work, struct da7280_haptic, work_playback);
+ int val = haptics->val;
+
+ if (!!val)
+ da7280_haptic_enable(haptics);
+ else
+ da7280_haptic_disable(haptics);
+}
+
+static void da7280_haptic_work_setgain(struct work_struct *work)
+{
+ struct da7280_haptic *haptics =
+ container_of(work, struct da7280_haptic, work_setgain);
+ u16 gain = haptics->gain;
+ int error = 0;
+
+ if (gain == 0)
+ return;
+
+ if (gain > 0x7fff)
+ gain = 0x7fff;
+
+ /* DRO and PWM modes support set_gain feature
+ */
+ switch (haptics->op_mode) {
+ case DA7280_DRO_MODE:
+ if (haptics->acc_en == 1) {
+ haptics->level = (u8)(gain * 0x7F / 0x7fff);
+ } else if (haptics->acc_en == 0) {
+ haptics->level = (u8)(gain * 0xFF / 0x7fff);
+
+ if (gain <= 0x3FFF)
+ haptics->level = haptics->level + 0x80;
+ else if (gain > 0x3FFF)
+ haptics->level = haptics->level - 0x80;
+ } else {
+ dev_err(haptics->dev, "Invalid acc_en %d.\n",
+ haptics->acc_en);
+ }
+
+ /* Set driver level
+ * as a % of ACTUATOR_NOMMAX(nommax)
+ */
+ error = regmap_write(haptics->regmap,
+ DA7280_TOP_CTL2,
+ haptics->level);
+ if (error) {
+ dev_err(haptics->dev,
+ "i2c err for driving level set : %d\n",
+ error);
+ return;
+ }
+ break;
+ case DA7280_PWM_MODE:
+ haptics->gain = gain;
+ if (haptics->enabled) {
+ if (da7280_haptic_set_pwm(haptics))
+ return;
+ }
+ break;
+ default:
+ dev_err(haptics->dev,
+ "Invalid Mode(%d). Change to DRM (Constant) mode.\n",
+ haptics->op_mode);
+ break;
+ }
+}
+
+static int da7280_haptics_upload_effect(struct input_dev *dev,
+ struct ff_effect *effect,
+ struct ff_effect *old)
+{
+ struct da7280_haptic *haptics = input_get_drvdata(dev);
+ int error;
+ s16 level;
+ int tmp, i;
+ unsigned int val;
+ s16 data[DA7280_SNP_MEM_SIZE] = {0,};
+
+ switch (effect->type) {
+ /* DRO/PWM modes support this type */
+ case FF_CONSTANT:
+ haptics->op_mode = haptics->const_op_mode;
+ /* effect->replay.length should be ms base */
+ haptics->length_ms = effect->replay.length;
+ level = effect->u.constant.level;
+ tmp = level * 254;
+ haptics->level = tmp / 0x7FFF;
+ break;
+
+ /* RTWM/ETWM modes support this type */
+ case FF_PERIODIC:
+ if (effect->u.periodic.waveform != FF_CUSTOM) {
+ dev_err(haptics->dev, "Only accept FF_CUSTOM type\n");
+ return -EINVAL;
+ }
+
+ /*
+ * Load the data and check the length.
+ * the data will be patterns in this case: 3 < X <= 100,
+ * and will be saved into the waveform memory inside DA728x.
+ * If X = 2, the data will be PS_SEQ_ID and PS_SEQ_LOOP .
+ */
+ if (effect->u.periodic.custom_len == DA7280_CUSTOM_DATA_LEN)
+ goto set_id_loop;
+
+ if (effect->u.periodic.custom_len < DA7280_CUSTOM_DATA_LEN ||
+ effect->u.periodic.custom_len > DA7280_SNP_MEM_SIZE) {
+ dev_err(haptics->dev, "Invalid data size\n");
+ return -EINVAL;
+ }
+
+ if (copy_from_user(data, effect->u.periodic.custom_data,
+ sizeof(s16) *
+ effect->u.periodic.custom_len)) {
+ dev_err(haptics->dev,
+ "custom data load error\n");
+ return -EFAULT;
+ }
+
+ memset(haptics->snp_mem, 0, DA7280_SNP_MEM_SIZE);
+
+ for (i = 0; i < effect->u.periodic.custom_len; i++) {
+ if (data[i] <= 0xff) {
+ haptics->snp_mem[i] = (u8)data[i];
+ } else {
+ dev_err(haptics->dev,
+ "Invalid data in the custom data\n");
+ return -EINVAL;
+ }
+ }
+
+ error = da7280_haptic_mem_update(haptics);
+ if (error) {
+ dev_err(haptics->dev,
+ "mem update error: %d\n",
+ error);
+ return error;
+ }
+ break;
+
+set_id_loop:
+ if (copy_from_user(data, effect->u.periodic.custom_data,
+ sizeof(s16) * DA7280_CUSTOM_DATA_LEN)) {
+ dev_err(haptics->dev,
+ "custom id/loop load error\n");
+ return -EFAULT;
+ }
+
+ haptics->ps_seq_id =
+ data[DA7280_CUSTOM_DATA_SEQ_ID_IDX] <=
+ DA7280_SEQ_ID_MAX ?
+ data[DA7280_CUSTOM_DATA_SEQ_ID_IDX] : 0;
+
+ haptics->ps_seq_loop =
+ data[DA7280_CUSTOM_DATA_SEQ_LOOP_IDX] <=
+ DA7280_SEQ_LOOP_MAX ?
+ data[DA7280_CUSTOM_DATA_SEQ_LOOP_IDX] : 0;
+
+ haptics->op_mode = haptics->periodic_op_mode;
+
+ val = haptics->ps_seq_id << DA7280_PS_SEQ_ID_SHIFT |
+ haptics->ps_seq_loop << DA7280_PS_SEQ_LOOP_SHIFT;
+ error = regmap_write(haptics->regmap,
+ DA7280_SEQ_CTL2, val);
+ if (error) {
+ dev_err(haptics->dev,
+ "i2c err for driving level set : %d\n",
+ error);
+ return error;
+ }
+ break;
+
+ default:
+ dev_err(haptics->dev, "Unsupported effect type: %d\n",
+ effect->type);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int da7280_haptics_playback(struct input_dev *dev,
+ int effect_id, int val)
+{
+ struct da7280_haptic *haptics = input_get_drvdata(dev);
+
+ if (!haptics->op_mode) {
+ dev_warn(haptics->dev,
+ "Any effects are not uploaded yet\n");
+ return -EPERM;
+ }
+
+ haptics->val = val;
+ schedule_work(&haptics->work_playback);
+
+ return 0;
+}
+
+static void da7280_haptics_set_gain(struct input_dev *dev, u16 gain)
+{
+ struct da7280_haptic *haptics = input_get_drvdata(dev);
+
+ haptics->gain = gain;
+ schedule_work(&haptics->work_setgain);
+}
+
+static int da7280_haptic_open(struct input_dev *dev)
+{
+ struct da7280_haptic *haptics = input_get_drvdata(dev);
+ int error;
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_CTL1,
+ DA7280_STANDBY_EN_MASK,
+ DA7280_STANDBY_EN_MASK);
+ if (error)
+ dev_err(haptics->dev,
+ "Failed to open haptic, i2c error : %d\n", error);
+
+ return error;
+}
+
+static void da7280_haptic_close(struct input_dev *dev)
+{
+ struct da7280_haptic *haptics = input_get_drvdata(dev);
+ int error;
+
+ cancel_delayed_work_sync(&haptics->work_duration);
+ cancel_work_sync(&haptics->work_playback);
+ cancel_work_sync(&haptics->work_setgain);
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_CTL1,
+ DA7280_OPERATION_MODE_MASK, 0);
+ if (error)
+ goto error_i2c;
+
+ if (haptics->op_mode == DA7280_DRO_MODE) {
+ error = regmap_write(haptics->regmap,
+ DA7280_TOP_CTL2, 0);
+
+ if (error)
+ goto error_i2c;
+ }
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_CTL1,
+ DA7280_STANDBY_EN_MASK, 0);
+ if (error)
+ goto error_i2c;
+
+ return;
+
+error_i2c:
+ dev_err(haptics->dev, "DA7280-haptic i2c error : %d\n", error);
+}
+
+static u8 da7280_haptic_of_mode_str(struct device *dev,
+ const char *str)
+{
+ if (!strcmp(str, "LRA"))
+ return DA7280_LRA;
+ else if (!strcmp(str, "ERM-bar"))
+ return DA7280_ERM_BAR;
+ else if (!strcmp(str, "ERM-coin"))
+ return DA7280_ERM_COIN;
+
+ dev_warn(dev, "Invalid string - set to default\n");
+ return DA7280_LRA;
+}
+
+static u8 da7280_haptic_of_gpi_mode_str(struct device *dev,
+ const char *str)
+{
+ if (!strcmp(str, "Single-pattern"))
+ return 0;
+ else if (!strcmp(str, "Multi-pattern"))
+ return 1;
+
+ dev_warn(dev, "Invalid string - set to default\n");
+ return 0;
+}
+
+static u8 da7280_haptic_of_gpi_pol_str(struct device *dev,
+ const char *str)
+{
+ if (!strcmp(str, "Rising-edge"))
+ return 0;
+ else if (!strcmp(str, "Falling-edge"))
+ return 1;
+ else if (!strcmp(str, "Both-edge"))
+ return 2;
+
+ dev_warn(dev, "Invalid string - set to default\n");
+ return 0;
+}
+
+static u8 da7280_haptic_of_volt_rating_set(u32 val)
+{
+ u32 voltage;
+
+ voltage = val / DA7280_VOLTAGE_RATE_STEP + 1;
+
+ if (voltage > 0xFF)
+ return 0xFF;
+ return (u8)voltage;
+}
+
+static void da7280_parse_properties(struct device *dev,
+ struct da7280_haptic *haptics)
+{
+ char gpi_str1[] = "dlg,gpi0-seq-id";
+ char gpi_str2[] = "dlg,gpi0-mode";
+ char gpi_str3[] = "dlg,gpi0-polarity";
+ unsigned int i, mem[DA7280_SNP_MEM_SIZE];
+ const char *str;
+ u32 val;
+
+ if (!device_property_read_string(dev, "dlg,actuator-type", &str))
+ haptics->dev_type =
+ da7280_haptic_of_mode_str(dev, str);
+ else /* if no property, then use the mode inside chip */
+ haptics->dev_type = DA7280_DEV_MAX;
+
+ if (device_property_read_u32(dev, "dlg,const-op-mode", &val) >= 0)
+ if (val == DA7280_FF_PERIODIC_PWM)
+ haptics->const_op_mode = DA7280_PWM_MODE;
+ else
+ haptics->const_op_mode = DA7280_DRO_MODE;
+ else
+ haptics->const_op_mode = DA7280_DRO_MODE;
+
+ if (device_property_read_u32(dev, "dlg,periodic-op-mode", &val) >= 0)
+ if (val == DA7280_FF_PERIODIC_ETWM)
+ haptics->periodic_op_mode = DA7280_ETWM_MODE;
+ else
+ haptics->periodic_op_mode = DA7280_RTWM_MODE;
+ else
+ haptics->periodic_op_mode = DA7280_RTWM_MODE;
+
+ if (device_property_read_u32(dev, "dlg,nom-microvolt", &val) >= 0)
+ if (val < DA7280_VOLTAGE_RATE_MAX)
+ haptics->nommax =
+ da7280_haptic_of_volt_rating_set(val);
+ else
+ haptics->nommax = DA7280_SKIP_INIT;
+ else /* if no property, then use the value inside chip */
+ haptics->nommax = DA7280_SKIP_INIT;
+
+ if (device_property_read_u32(dev, "dlg,abs-max-microvolt",
+ &val) >= 0)
+ if (val < DA7280_VOLTAGE_RATE_MAX)
+ haptics->absmax =
+ da7280_haptic_of_volt_rating_set(val);
+ else
+ haptics->absmax = DA7280_SKIP_INIT;
+ else
+ haptics->absmax = DA7280_SKIP_INIT;
+
+ if (device_property_read_u32(dev, "dlg,imax-microamp", &val) >= 0)
+ if (val < DA7280_IMAX_LIMIT)
+ haptics->imax = (val - 28600)
+ / DA7280_IMAX_STEP + 1;
+ else
+ haptics->imax = DA7280_IMAX_DEFAULT;
+ else
+ haptics->imax = DA7280_IMAX_DEFAULT;
+
+ if (device_property_read_u32(dev, "dlg,impd-micro-ohms", &val) >= 0)
+ if (val <= DA7280_IMPD_MAX)
+ haptics->impd = val;
+ else
+ haptics->impd = DA7280_IMPD_DEFAULT;
+ else
+ haptics->impd = DA7280_IMPD_DEFAULT;
+
+ if (device_property_read_u32(dev, "dlg,resonant-freq-hz",
+ &val) >= 0) {
+ if (val < DA7280_MAX_RESONAT_FREQ_HZ &&
+ val > DA7280_MIN_RESONAT_FREQ_HZ) {
+ haptics->resonant_freq_h =
+ ((1000000000 / (val * 1333)) >> 7) & 0xFF;
+ haptics->resonant_freq_l =
+ (1000000000 / (val * 1333)) & 0x7F;
+ } else {
+ haptics->resonant_freq_h =
+ DA7280_RESONT_FREQH_DFT;
+ haptics->resonant_freq_l =
+ DA7280_RESONT_FREQL_DFT;
+ }
+ } else {
+ haptics->resonant_freq_h = DA7280_SKIP_INIT;
+ haptics->resonant_freq_l = DA7280_SKIP_INIT;
+ }
+
+ if (device_property_read_u32(dev, "dlg,ps-seq-id", &val) >= 0)
+ if (val <= DA7280_SEQ_ID_MAX)
+ haptics->ps_seq_id = val;
+ else
+ haptics->ps_seq_id = 0;
+ else /* if no property, set to zero as a default do nothing */
+ haptics->ps_seq_id = 0;
+
+ if (device_property_read_u32(dev, "dlg,ps-seq-loop", &val) >= 0)
+ if (val <= DA7280_SEQ_LOOP_MAX)
+ haptics->ps_seq_loop = val;
+ else
+ haptics->ps_seq_loop = 0;
+ else /* if no property, then do nothing */
+ haptics->ps_seq_loop = 0;
+
+ /* GPI0~2 Control */
+ for (i = 0; i < 3; i++) {
+ gpi_str1[7] = '0' + i;
+ if (device_property_read_u32 (dev, gpi_str1, &val) >= 0)
+ if (val <= DA7280_SEQ_ID_MAX)
+ haptics->gpi_ctl[i].seq_id = val;
+ else
+ haptics->gpi_ctl[i].seq_id =
+ DA7280_GPI1_SEQ_ID_DEFT + i;
+ else /* if no property, then do nothing */
+ haptics->gpi_ctl[i].seq_id =
+ DA7280_GPI1_SEQ_ID_DEFT + i;
+
+ gpi_str2[7] = '0' + i;
+ if (!device_property_read_string(dev, gpi_str2, &str))
+ haptics->gpi_ctl[i].mode =
+ da7280_haptic_of_gpi_mode_str(dev, str);
+ else
+ haptics->gpi_ctl[i].mode = 0;
+
+ gpi_str3[7] = '0' + i;
+ if (!device_property_read_string(dev, gpi_str3, &str))
+ haptics->gpi_ctl[i].polarity =
+ da7280_haptic_of_gpi_pol_str(dev, str);
+ else
+ haptics->gpi_ctl[i].polarity = 0;
+ }
+
+ haptics->bemf_sense_en =
+ device_property_read_bool(dev, "dlg,bemf-sens-enable");
+ haptics->freq_track_en =
+ device_property_read_bool(dev, "dlg,freq-track-enable");
+ haptics->acc_en =
+ device_property_read_bool(dev, "dlg,acc-enable");
+ haptics->rapid_stop_en =
+ device_property_read_bool(dev, "dlg,rapid-stop-enable");
+ haptics->amp_pid_en =
+ device_property_read_bool(dev, "dlg,amp-pid-enable");
+
+ if (device_property_read_u32_array(dev, "dlg,mem-array",
+ &mem[0],
+ DA7280_SNP_MEM_SIZE) >= 0) {
+ haptics->mem_update = true;
+ memset(haptics->snp_mem, 0, DA7280_SNP_MEM_SIZE);
+ for (i = 0; i < DA7280_SNP_MEM_SIZE; i++) {
+ if (mem[i] <= 0xff) {
+ haptics->snp_mem[i] = (u8)mem[i];
+ } else {
+ dev_err(haptics->dev,
+ "Invalid data in mem-array\n");
+ haptics->mem_update = false;
+ break;
+ }
+ }
+ } else {
+ haptics->mem_update = false;
+ }
+}
+
+static irqreturn_t da7280_irq_handler(int irq, void *data)
+{
+ struct da7280_haptic *haptics = data;
+ struct device *dev = haptics->dev;
+ u8 events[IRQ_NUM];
+ int error;
+
+ /* Check what events have happened */
+ error = regmap_bulk_read(haptics->regmap,
+ DA7280_IRQ_EVENT1,
+ events, IRQ_NUM);
+ if (error)
+ goto error_i2c;
+
+ /* Clear events */
+ error = regmap_write(haptics->regmap,
+ DA7280_IRQ_EVENT1, events[0]);
+ if (error)
+ goto error_i2c;
+
+ if (events[0] & DA7280_E_SEQ_FAULT_MASK) {
+ /* Stop first if Haptic is working
+ * Otherwise, the fault may happen continually
+ * even though the bit is cleared.
+ */
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_CTL1,
+ DA7280_OPERATION_MODE_MASK, 0);
+ if (error)
+ goto error_i2c;
+ }
+
+ if (events[0] & DA7280_E_SEQ_DONE_MASK)
+ haptics->enabled = false;
+
+ if (events[0] & DA7280_E_WARNING_MASK) {
+ if (events[1] & DA7280_E_LIM_DRIVE_MASK ||
+ events[1] & DA7280_E_LIM_DRIVE_ACC_MASK)
+ dev_warn(dev, "Please reduce the driver level\n");
+ if (events[1] & DA7280_E_LIM_DRIVE_ACC_MASK)
+ dev_warn(dev, "Please Check the mem data format\n");
+ }
+
+ if (events[0] & DA7280_E_SEQ_FAULT_MASK) {
+ if (events[2] & DA7280_E_SEQ_ID_FAULT_MASK)
+ dev_info(dev, "Please reload PS_SEQ_ID & mem data\n");
+ if (events[2] & DA7280_E_MEM_FAULT_MASK)
+ dev_info(dev, "Please reload the mem data\n");
+ if (events[2] & DA7280_E_PWM_FAULT_MASK)
+ dev_info(dev, "Please restart PWM interface\n");
+ }
+
+ return IRQ_HANDLED;
+
+error_i2c:
+ dev_err(dev, "da7280 i2c error : %d\n", error);
+ return IRQ_NONE;
+}
+
+static int da7280_init(struct da7280_haptic *haptics)
+{
+ int error, i;
+ unsigned int val = 0;
+ u32 v2i_factor;
+ u8 mask = 0;
+
+ /* If device type is DA7280_DEV_MAX,
+ * then just use default value inside chip.
+ */
+ if (haptics->dev_type == DA7280_DEV_MAX) {
+ error = regmap_read(haptics->regmap, DA7280_TOP_CFG1, &val);
+ if (error)
+ goto error_i2c;
+ if (val & DA7280_ACTUATOR_TYPE_MASK)
+ haptics->dev_type = DA7280_ERM_COIN;
+ else
+ haptics->dev_type = DA7280_LRA;
+ }
+
+ /* Apply user settings */
+ if (haptics->dev_type == DA7280_LRA) {
+ if (haptics->resonant_freq_l != DA7280_SKIP_INIT) {
+ error = regmap_write(haptics->regmap,
+ DA7280_FRQ_LRA_PER_H,
+ haptics->resonant_freq_h);
+ if (error)
+ goto error_i2c;
+ error = regmap_write(haptics->regmap,
+ DA7280_FRQ_LRA_PER_L,
+ haptics->resonant_freq_l);
+ if (error)
+ goto error_i2c;
+ }
+ } else if (haptics->dev_type == DA7280_ERM_COIN) {
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_INT_CFG1,
+ DA7280_BEMF_FAULT_LIM_MASK, 0);
+ if (error)
+ goto error_i2c;
+
+ mask = DA7280_TST_CALIB_IMPEDANCE_DIS_MASK |
+ DA7280_V2I_FACTOR_FREEZE_MASK;
+ val = DA7280_TST_CALIB_IMPEDANCE_DIS_MASK |
+ DA7280_V2I_FACTOR_FREEZE_MASK;
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_CFG4,
+ mask, val);
+ if (error)
+ goto error_i2c;
+
+ haptics->acc_en = false;
+ haptics->rapid_stop_en = false;
+ haptics->amp_pid_en = false;
+ }
+
+ mask = DA7280_ACTUATOR_TYPE_MASK |
+ DA7280_BEMF_SENSE_EN_MASK |
+ DA7280_FREQ_TRACK_EN_MASK |
+ DA7280_ACCELERATION_EN_MASK |
+ DA7280_RAPID_STOP_EN_MASK |
+ DA7280_AMP_PID_EN_MASK;
+
+ val = (haptics->dev_type ? 1 : 0)
+ << DA7280_ACTUATOR_TYPE_SHIFT |
+ (haptics->bemf_sense_en ? 1 : 0)
+ << DA7280_BEMF_SENSE_EN_SHIFT |
+ (haptics->freq_track_en ? 1 : 0)
+ << DA7280_FREQ_TRACK_EN_SHIFT |
+ (haptics->acc_en ? 1 : 0)
+ << DA7280_ACCELERATION_EN_SHIFT |
+ (haptics->rapid_stop_en ? 1 : 0)
+ << DA7280_RAPID_STOP_EN_SHIFT |
+ (haptics->amp_pid_en ? 1 : 0)
+ << DA7280_AMP_PID_EN_SHIFT;
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_CFG1, mask, val);
+ if (error)
+ goto error_i2c;
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_CFG5,
+ DA7280_V2I_FACTOR_OFFSET_EN_MASK,
+ haptics->acc_en ?
+ DA7280_V2I_FACTOR_OFFSET_EN_MASK : 0);
+ if (error)
+ goto error_i2c;
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_CFG2,
+ DA7280_MEM_DATA_SIGNED_MASK,
+ haptics->acc_en ?
+ 0 : DA7280_MEM_DATA_SIGNED_MASK);
+ if (error)
+ goto error_i2c;
+
+ if (haptics->nommax != DA7280_SKIP_INIT) {
+ error = regmap_write(haptics->regmap,
+ DA7280_ACTUATOR1,
+ haptics->nommax);
+ if (error)
+ goto error_i2c;
+ }
+
+ if (haptics->absmax != DA7280_SKIP_INIT) {
+ error = regmap_write(haptics->regmap, DA7280_ACTUATOR2,
+ haptics->absmax);
+ if (error)
+ goto error_i2c;
+ }
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_ACTUATOR3,
+ DA7280_IMAX_MASK,
+ haptics->imax);
+ if (error)
+ goto error_i2c;
+
+ v2i_factor =
+ haptics->impd * (haptics->imax + 4) / 1610400;
+ error = regmap_write(haptics->regmap,
+ DA7280_CALIB_V2I_L,
+ v2i_factor & 0xff);
+ if (error)
+ goto error_i2c;
+ error = regmap_write(haptics->regmap,
+ DA7280_CALIB_V2I_H,
+ v2i_factor >> 8);
+ if (error)
+ goto error_i2c;
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_CTL1,
+ DA7280_STANDBY_EN_MASK,
+ DA7280_STANDBY_EN_MASK);
+ if (error)
+ goto error_i2c;
+
+ if (haptics->mem_update) {
+ error = da7280_haptic_mem_update(haptics);
+ if (error)
+ goto error_i2c;
+ }
+
+ /* Set PS_SEQ_ID and PS_SEQ_LOOP */
+ val = haptics->ps_seq_id << DA7280_PS_SEQ_ID_SHIFT |
+ haptics->ps_seq_loop << DA7280_PS_SEQ_LOOP_SHIFT;
+ error = regmap_write(haptics->regmap,
+ DA7280_SEQ_CTL2, val);
+ if (error)
+ goto error_i2c;
+
+ /* GPI(N) CTL */
+ for (i = 0; i < 3; i++) {
+ val = haptics->gpi_ctl[i].seq_id
+ << DA7280_GPI0_SEQUENCE_ID_SHIFT |
+ haptics->gpi_ctl[i].mode
+ << DA7280_GPI0_MODE_SHIFT |
+ haptics->gpi_ctl[i].polarity
+ << DA7280_GPI0_POLARITY_SHIFT;
+ error = regmap_write(haptics->regmap,
+ DA7280_GPI_0_CTL + i, val);
+ if (error)
+ goto error_i2c;
+ }
+
+ /* Mask ADC_SAT_M bit as default */
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_IRQ_MASK2,
+ DA7280_ADC_SAT_M_MASK,
+ DA7280_ADC_SAT_M_MASK);
+ if (error)
+ goto error_i2c;
+
+ /* Clear Interrupts */
+ error = regmap_write(haptics->regmap, DA7280_IRQ_EVENT1, 0xff);
+ if (error)
+ goto error_i2c;
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_IRQ_MASK1,
+ DA7280_SEQ_FAULT_M_MASK
+ | DA7280_SEQ_DONE_M_MASK, 0);
+ if (error)
+ goto error_i2c;
+
+ haptics->enabled = false;
+ return 0;
+
+error_i2c:
+ dev_err(haptics->dev, "haptic init - I2C error : %d\n", error);
+ return error;
+}
+
+/* Valid format for ps_seq_id
+ * echo X > ps_seq_id
+ * ex) echo 2 > /sys/class/..../ps_seq_id
+ * 0 <= X <= 15.
+ */
+static ssize_t ps_seq_id_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ struct da7280_haptic *haptics = dev_get_drvdata(dev);
+ long val = 0xff;
+ int error;
+
+ if (haptics->enabled)
+ return -EBUSY;
+
+ if (kstrtol(&buf[0], 0, &val) < 0)
+ goto err;
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_SEQ_CTL2,
+ DA7280_PS_SEQ_ID_MASK,
+ (val & 0xf) >> DA7280_PS_SEQ_ID_SHIFT);
+ if (error) {
+ dev_err(haptics->dev,
+ "failed to update register : %d\n", error);
+ return error;
+ }
+
+ haptics->ps_seq_id = val & 0xf;
+
+ return count;
+
+err:
+ dev_err(dev, "Invalid input\n");
+ return count;
+}
+
+static ssize_t ps_seq_id_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct da7280_haptic *haptics = dev_get_drvdata(dev);
+ int error;
+ unsigned int val;
+
+ error = regmap_read(haptics->regmap, DA7280_SEQ_CTL2, &val);
+ if (error) {
+ dev_err(haptics->dev,
+ "failed to read register : %d\n", error);
+ return error;
+ }
+ val = (val & DA7280_PS_SEQ_ID_MASK)
+ >> DA7280_PS_SEQ_ID_SHIFT;
+
+ return sprintf(buf, "ps_seq_id is %d\n", val);
+}
+
+/* Valid format for ps_seq_loop
+ * echo X > ps_seq_loop
+ * ex) echo 2 > /sys/class/..../ps_seq_loop
+ * 0 <= X <= 15.
+ */
+static ssize_t ps_seq_loop_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ struct da7280_haptic *haptics = dev_get_drvdata(dev);
+ long val = 0xff;
+ int error;
+
+ if (haptics->enabled)
+ return -EBUSY;
+
+ if (kstrtol(&buf[0], 0, &val) < 0)
+ goto err;
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_SEQ_CTL2,
+ DA7280_PS_SEQ_LOOP_MASK,
+ (val & 0xF) << DA7280_PS_SEQ_LOOP_SHIFT);
+ if (error) {
+ dev_err(haptics->dev,
+ "failed to update register : %d\n", error);
+ return error;
+ }
+
+ haptics->ps_seq_loop = (val & 0xF);
+
+ return count;
+err:
+ dev_err(dev, "Invalid input value!\n");
+ return count;
+}
+
+static ssize_t ps_seq_loop_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct da7280_haptic *haptics = dev_get_drvdata(dev);
+ int error;
+ unsigned int val;
+
+ error = regmap_read(haptics->regmap, DA7280_SEQ_CTL2, &val);
+ if (error) {
+ dev_err(haptics->dev,
+ "failed to read register : %d\n", error);
+ return error;
+ }
+ val = (val & DA7280_PS_SEQ_LOOP_MASK)
+ >> DA7280_PS_SEQ_LOOP_SHIFT;
+
+ return sprintf(buf, "ps_seq_loop is %d\n", val);
+}
+
+/* Valid format for GPIx_SEQUENCE_ID
+ * echo X > ./gpi_seq_id0
+ * Range of X: 0 <= X <= 15
+ * ex)
+ * echo 1 > /sys/class/..../gpi_seq_id0
+ * echo 2 > /sys/class/..../gpi_seq_id1
+ * echo 3 > /sys/class/..../gpi_seq_id2
+ */
+static ssize_t gpi_seq_id0_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ struct da7280_haptic *haptics = dev_get_drvdata(dev);
+ long val = 0xff;
+ int error;
+
+ if (haptics->enabled)
+ return -EBUSY;
+
+ if (kstrtol(&buf[0], 0, &val) < 0)
+ goto err;
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_GPI_0_CTL,
+ DA7280_GPI0_SEQUENCE_ID_MASK,
+ (val & 0xf)
+ << DA7280_GPI0_SEQUENCE_ID_SHIFT);
+ if (error) {
+ dev_err(haptics->dev,
+ "failed to update register : %d\n", error);
+ return error;
+ }
+
+ haptics->gpi_ctl[0].seq_id = val & 0xf;
+
+ return count;
+
+err:
+ dev_err(dev, "Invalid input\n");
+ return count;
+}
+
+static ssize_t gpi_seq_id0_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct da7280_haptic *haptics = dev_get_drvdata(dev);
+ int error;
+ unsigned int val;
+
+ error = regmap_read(haptics->regmap, DA7280_GPI_0_CTL, &val);
+ if (error) {
+ dev_err(haptics->dev,
+ "failed to read register : %d\n", error);
+ return error;
+ }
+ val = (val & DA7280_GPI0_SEQUENCE_ID_MASK)
+ >> DA7280_GPI0_SEQUENCE_ID_SHIFT;
+
+ return sprintf(buf, "gpi_seq_id0 is %d\n", val);
+}
+
+static ssize_t gpi_seq_id1_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ struct da7280_haptic *haptics = dev_get_drvdata(dev);
+ long val = 0xff;
+ int error;
+
+ if (haptics->enabled)
+ return -EBUSY;
+
+ if (kstrtol(&buf[0], 0, &val) < 0)
+ goto err;
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_GPI_1_CTL,
+ DA7280_GPI1_SEQUENCE_ID_MASK,
+ (val & 0xf)
+ << DA7280_GPI1_SEQUENCE_ID_SHIFT);
+ if (error) {
+ dev_err(haptics->dev,
+ "failed to update register : %d\n", error);
+ return error;
+ }
+
+ haptics->gpi_ctl[1].seq_id = val & 0xf;
+
+ return count;
+
+err:
+ dev_err(dev, "Invalid input\n");
+ return count;
+}
+
+static ssize_t gpi_seq_id1_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct da7280_haptic *haptics = dev_get_drvdata(dev);
+ int error;
+ unsigned int val;
+
+ error = regmap_read(haptics->regmap, DA7280_GPI_1_CTL, &val);
+ if (error) {
+ dev_err(haptics->dev,
+ "failed to read register : %d\n", error);
+ return error;
+ }
+ val = (val & DA7280_GPI1_SEQUENCE_ID_MASK)
+ >> DA7280_GPI1_SEQUENCE_ID_SHIFT;
+
+ return sprintf(buf, "gpi_seq_id1 is %d\n", val);
+}
+
+static ssize_t gpi_seq_id2_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ struct da7280_haptic *haptics = dev_get_drvdata(dev);
+ long val = 0xff;
+ int error;
+
+ if (haptics->enabled)
+ return -EBUSY;
+
+ if (kstrtol(&buf[0], 0, &val) < 0)
+ goto err;
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_GPI_2_CTL,
+ DA7280_GPI2_SEQUENCE_ID_MASK,
+ (val & 0xf)
+ << DA7280_GPI2_SEQUENCE_ID_SHIFT);
+ if (error) {
+ dev_err(haptics->dev,
+ "failed to update register : %d\n", error);
+ return error;
+ }
+
+ haptics->gpi_ctl[2].seq_id = val & 0xf;
+
+ return count;
+
+err:
+ dev_err(dev, "Invalid input\n");
+ return count;
+}
+
+static ssize_t gpi_seq_id2_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct da7280_haptic *haptics = dev_get_drvdata(dev);
+ int error;
+ unsigned int val;
+
+ error = regmap_read(haptics->regmap, DA7280_GPI_2_CTL, &val);
+ if (error) {
+ dev_err(haptics->dev,
+ "failed to read register : %d\n", error);
+ return error;
+ }
+ val = (val & DA7280_GPI2_SEQUENCE_ID_MASK)
+ >> DA7280_GPI2_SEQUENCE_ID_SHIFT;
+
+ return sprintf(buf, "gpi_seq_id2 is %d\n", val);
+}
+
+#define MAX_PTN_REGS DA7280_SNP_MEM_SIZE
+#define MAX_USER_INPUT_LEN (5 * DA7280_SNP_MEM_SIZE)
+struct parse_data_t {
+ int len;
+ u8 val[MAX_PTN_REGS];
+};
+
+static int da7280_parse_args(struct device *dev,
+ char *cmd, struct parse_data_t *ptn)
+{
+ struct da7280_haptic *haptics = dev_get_drvdata(dev);
+ char *tok; /* used to separate tokens */
+ static const char ct[] = " \t"; /* space or tab delimits the tokens */
+ int tok_count = 0; /* total number of tokens parsed */
+ int i = 0, val;
+
+ ptn->len = 0;
+
+ /* parse the input string */
+ while ((tok = strsep(&cmd, ct)) != NULL) {
+ /* this is a value to be written to the register */
+ if (kstrtouint(tok, 0, &val) < 0) {
+ dev_err(haptics->dev,
+ "failed to read from %s\n", tok);
+ break;
+ }
+
+ if (i < MAX_PTN_REGS) {
+ ptn->val[i] = val;
+ i++;
+ }
+ tok_count++;
+ }
+
+ /* decide whether it is a read or write operation based on the
+ * value of tok_count and count_flag.
+ * tok_count = 0: no inputs, invalid case.
+ * tok_count = 1: write one value.
+ * tok_count > 1: write multiple values/patterns.
+ */
+ switch (tok_count) {
+ case 0:
+ return -EINVAL;
+ case 1:
+ ptn->len = 1;
+ break;
+ default:
+ ptn->len = i;
+ }
+ return 0;
+}
+
+static ssize_t
+patterns_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ struct da7280_haptic *haptics = dev_get_drvdata(dev);
+ struct parse_data_t mem;
+ char cmd[MAX_USER_INPUT_LEN];
+ unsigned int val;
+ int error;
+
+ error = regmap_read(haptics->regmap, DA7280_MEM_CTL1, &val);
+ if (error)
+ return error;
+
+ if (count > MAX_USER_INPUT_LEN)
+ memcpy(cmd, buf, MAX_USER_INPUT_LEN);
+ else
+ memcpy(cmd, buf, count);
+
+ /* chop of '\n' introduced by echo at the end of the input */
+ if (cmd[count - 1] == '\n')
+ cmd[count - 1] = '\0';
+
+ if (da7280_parse_args(dev, cmd, &mem) < 0)
+ return -EINVAL;
+
+ memset(haptics->snp_mem, 0, DA7280_SNP_MEM_SIZE);
+ memcpy(haptics->snp_mem, mem.val, mem.len);
+
+ error = da7280_haptic_mem_update(haptics);
+ if (error)
+ return error;
+
+ return count;
+}
+
+static DEVICE_ATTR_RW(ps_seq_id);
+static DEVICE_ATTR_RW(ps_seq_loop);
+static DEVICE_ATTR_RW(gpi_seq_id0);
+static DEVICE_ATTR_RW(gpi_seq_id1);
+static DEVICE_ATTR_RW(gpi_seq_id2);
+static DEVICE_ATTR_WO(patterns);
+static struct attribute *da7280_sysfs_attr[] = {
+ &dev_attr_ps_seq_id.attr,
+ &dev_attr_ps_seq_loop.attr,
+ &dev_attr_gpi_seq_id0.attr,
+ &dev_attr_gpi_seq_id1.attr,
+ &dev_attr_gpi_seq_id2.attr,
+ &dev_attr_patterns.attr,
+ NULL,
+};
+
+static const struct attribute_group da7280_attr_group = {
+ .attrs = da7280_sysfs_attr,
+};
+
+static int da7280_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct device *dev = &client->dev;
+ struct da7280_haptic *haptics;
+ struct input_dev *input_dev;
+ struct ff_device *ff;
+ unsigned int period2freq;
+ int error;
+
+ haptics = devm_kzalloc(dev, sizeof(*haptics), GFP_KERNEL);
+ if (!haptics)
+ return -ENOMEM;
+ haptics->dev = dev;
+
+ if (!client->irq) {
+ dev_err(dev, "No IRQ configured\n");
+ return -EINVAL;
+ }
+
+ da7280_parse_properties(&client->dev, haptics);
+
+ if (haptics->const_op_mode == DA7280_PWM_MODE) {
+ /* Get pwm and regulatot for haptics device */
+ haptics->pwm_dev = devm_pwm_get(&client->dev, NULL);
+ if (IS_ERR(haptics->pwm_dev)) {
+ dev_err(dev, "failed to get PWM device\n");
+ return PTR_ERR(haptics->pwm_dev);
+ }
+
+ /*
+ * FIXME: pwm_apply_args() should be removed when switching to
+ * the atomic PWM API.
+ */
+ pwm_apply_args(haptics->pwm_dev);
+
+ /* Check PWM Period, it must be in 10k ~ 250kHz */
+ period2freq = 1000000 / pwm_get_period(haptics->pwm_dev);
+ if (period2freq < DA7280_MIN_PWM_FREQ_KHZ ||
+ period2freq > DA7280_MAX_PWM_FREQ_KHZ) {
+ dev_err(dev, "Not supported PWM frequency(%d)\n",
+ period2freq);
+ return -EINVAL;
+ }
+ }
+
+ INIT_DELAYED_WORK(&haptics->work_duration, da7280_haptic_work_duration);
+ INIT_WORK(&haptics->work_playback, da7280_haptic_work_playback);
+ INIT_WORK(&haptics->work_setgain, da7280_haptic_work_setgain);
+
+ haptics->client = client;
+ i2c_set_clientdata(client, haptics);
+
+ haptics->regmap =
+ devm_regmap_init_i2c(client, &da7280_haptic_regmap_config);
+ if (IS_ERR(haptics->regmap)) {
+ error = PTR_ERR(haptics->regmap);
+ dev_err(dev, "Failed to allocate register map : %d\n",
+ error);
+ return error;
+ }
+
+ error = da7280_init(haptics);
+ if (error) {
+ dev_err(dev, "failed to initialize device\n");
+ return error;
+ }
+
+ /* Initialize input device for haptic device */
+ input_dev = devm_input_allocate_device(dev);
+ if (!input_dev) {
+ dev_err(dev, "failed to allocate input device\n");
+ return -ENOMEM;
+ }
+
+ input_dev->name = "da7280-haptic";
+ input_dev->dev.parent = client->dev.parent;
+ input_dev->open = da7280_haptic_open;
+ input_dev->close = da7280_haptic_close;
+ input_set_drvdata(input_dev, haptics);
+ haptics->input_dev = input_dev;
+
+ input_set_capability(haptics->input_dev, EV_FF, FF_PERIODIC);
+ input_set_capability(haptics->input_dev, EV_FF, FF_CUSTOM);
+ input_set_capability(haptics->input_dev, EV_FF, FF_CONSTANT);
+ input_set_capability(haptics->input_dev, EV_FF, FF_GAIN);
+
+ error = input_ff_create(haptics->input_dev, DA7280_FF_EFFECT_COUNT_MAX);
+ if (error) {
+ dev_err(dev, "create FF input device failed(%d)\n",
+ error);
+ return error;
+ }
+
+ ff = input_dev->ff;
+ ff->upload = da7280_haptics_upload_effect;
+ ff->playback = da7280_haptics_playback;
+ ff->set_gain = da7280_haptics_set_gain;
+
+ error = input_register_device(input_dev);
+ if (error) {
+ dev_err(dev, "failed to register input device\n");
+ return error;
+ }
+
+ error = devm_device_add_group(dev, &da7280_attr_group);
+ if (error) {
+ dev_err(dev, "Failed to create sysfs attributes: %d\n",
+ error);
+ return error;
+ }
+
+ error = devm_request_threaded_irq(dev, client->irq, NULL,
+ da7280_irq_handler,
+ IRQF_ONESHOT,
+ "da7280-haptics", haptics);
+ if (error)
+ dev_err(dev, "Failed to request IRQ : %d\n", client->irq);
+
+ return error;
+}
+
+static int __maybe_unused da7280_suspend(struct device *dev)
+{
+ struct da7280_haptic *haptics = dev_get_drvdata(dev);
+ int error = 0;
+
+ mutex_lock(&haptics->input_dev->mutex);
+
+ da7280_haptic_disable(haptics);
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_CTL1,
+ DA7280_STANDBY_EN_MASK, 0);
+ if (error)
+ dev_err(haptics->dev,
+ "I2C error : %d\n", error);
+
+ mutex_unlock(&haptics->input_dev->mutex);
+ return error;
+}
+
+static int __maybe_unused da7280_resume(struct device *dev)
+{
+ struct da7280_haptic *haptics = dev_get_drvdata(dev);
+ int error = 0;
+
+ mutex_lock(&haptics->input_dev->mutex);
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_CTL1,
+ DA7280_STANDBY_EN_MASK,
+ DA7280_STANDBY_EN_MASK);
+ if (error)
+ dev_err(haptics->dev,
+ "i2c error : %d\n", error);
+
+ mutex_unlock(&haptics->input_dev->mutex);
+ return error;
+}
+
+static const struct of_device_id da7280_of_match[] = {
+ { .compatible = "dlg,da7280", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, da7280_of_match);
+
+static const struct i2c_device_id da7280_i2c_id[] = {
+ { "da7280", },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, da7280_i2c_id);
+
+static SIMPLE_DEV_PM_OPS(da7280_pm_ops,
+ da7280_suspend, da7280_resume);
+
+static struct i2c_driver da7280_driver = {
+ .driver = {
+ .name = "da7280",
+ .of_match_table = of_match_ptr(da7280_of_match),
+ .pm = &da7280_pm_ops,
+ },
+ .probe = da7280_probe,
+ .id_table = da7280_i2c_id,
+};
+module_i2c_driver(da7280_driver);
+
+MODULE_DESCRIPTION("DA7280 haptics driver");
+MODULE_AUTHOR("Roy Im <Roy.Im.Opensource@diasemi.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/misc/da7280.h b/drivers/input/misc/da7280.h
new file mode 100644
index 0000000..b234e62
--- /dev/null
+++ b/drivers/input/misc/da7280.h
@@ -0,0 +1,412 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * DA7280 Haptic device driver registers
+ *
+ * Copyright (c) 2019 Dialog Semiconductor.
+ * Author: Roy Im <Roy.Im.Opensource@diasemi.com>
+ */
+
+#ifndef _DA7280_REG_DEFS_H
+#define _DA7280_REG_DEFS_H
+
+#include <linux/bitops.h>
+
+/* Registers */
+
+#define DA7280_CHIP_REV 0x00
+#define DA7280_IRQ_EVENT1 0x03
+#define DA7280_IRQ_EVENT_WARNING_DIAG 0x04
+#define DA7280_IRQ_EVENT_SEQ_DIAG 0x05
+#define DA7280_IRQ_STATUS1 0x06
+#define DA7280_IRQ_MASK1 0x07
+#define DA7280_CIF_I2C1 0x08
+#define DA7280_FRQ_LRA_PER_H 0x0A
+#define DA7280_FRQ_LRA_PER_L 0x0B
+#define DA7280_ACTUATOR1 0x0C
+#define DA7280_ACTUATOR2 0x0D
+#define DA7280_ACTUATOR3 0x0E
+#define DA7280_CALIB_V2I_H 0x0F
+#define DA7280_CALIB_V2I_L 0x10
+#define DA7280_CALIB_IMP_H 0x11
+#define DA7280_CALIB_IMP_L 0x12
+#define DA7280_TOP_CFG1 0x13
+#define DA7280_TOP_CFG2 0x14
+#define DA7280_TOP_CFG3 0x15
+#define DA7280_TOP_CFG4 0x16
+#define DA7280_TOP_INT_CFG1 0x17
+#define DA7280_TOP_INT_CFG6_H 0x1C
+#define DA7280_TOP_INT_CFG6_L 0x1D
+#define DA7280_TOP_INT_CFG7_H 0x1E
+#define DA7280_TOP_INT_CFG7_L 0x1F
+#define DA7280_TOP_INT_CFG8 0x20
+#define DA7280_TOP_CTL1 0x22
+#define DA7280_TOP_CTL2 0x23
+#define DA7280_SEQ_CTL1 0x24
+#define DA7280_SWG_C1 0x25
+#define DA7280_SWG_C2 0x26
+#define DA7280_SWG_C3 0x27
+#define DA7280_SEQ_CTL2 0x28
+#define DA7280_GPI_0_CTL 0x29
+#define DA7280_GPI_1_CTL 0x2A
+#define DA7280_GPI_2_CTL 0x2B
+#define DA7280_MEM_CTL1 0x2C
+#define DA7280_MEM_CTL2 0x2D
+#define DA7280_ADC_DATA_H1 0x2E
+#define DA7280_ADC_DATA_L1 0x2F
+#define DA7280_POLARITY 0x43
+#define DA7280_LRA_AVR_H 0x44
+#define DA7280_LRA_AVR_L 0x45
+#define DA7280_FRQ_LRA_PER_ACT_H 0x46
+#define DA7280_FRQ_LRA_PER_ACT_L 0x47
+#define DA7280_FRQ_PHASE_H 0x48
+#define DA7280_FRQ_PHASE_L 0x49
+#define DA7280_FRQ_CTL 0x4C
+#define DA7280_TRIM3 0x5F
+#define DA7280_TRIM4 0x60
+#define DA7280_TRIM6 0x62
+#define DA7280_TOP_CFG5 0x6E
+#define DA7280_IRQ_EVENT_ACTUATOR_FAULT 0x81
+#define DA7280_IRQ_STATUS2 0x82
+#define DA7280_IRQ_MASK2 0x83
+#define DA7280_SNP_MEM_0 0x84
+#define DA7280_SNP_MEM_99 0xE7
+
+/* DA7280_CHIP_REV (Address 0x00) */
+#define DA7280_CHIP_REV_MAJOR_SHIFT 0
+#define DA7280_CHIP_REV_MAJOR_MASK (15 << 0)
+#define DA7280_CHIP_REV_MINOR_SHIFT 4
+#define DA7280_CHIP_REV_MINOR_MASK (15 << 4)
+
+/* DA7280_IRQ_EVENT1 (Address 0x03) */
+#define DA7280_E_SEQ_CONTINUE_SHIFT 0
+#define DA7280_E_SEQ_CONTINUE_MASK BIT(0)
+#define DA7280_E_UVLO_SHIFT 1
+#define DA7280_E_UVLO_MASK BIT(1)
+#define DA7280_E_SEQ_DONE_SHIFT 2
+#define DA7280_E_SEQ_DONE_MASK BIT(2)
+#define DA7280_E_OVERTEMP_CRIT_SHIFT 3
+#define DA7280_E_OVERTEMP_CRIT_MASK BIT(3)
+#define DA7280_E_SEQ_FAULT_SHIFT 4
+#define DA7280_E_SEQ_FAULT_MASK BIT(4)
+#define DA7280_E_WARNING_SHIFT 5
+#define DA7280_E_WARNING_MASK BIT(5)
+#define DA7280_E_ACTUATOR_FAULT_SHIFT 6
+#define DA7280_E_ACTUATOR_FAULT_MASK BIT(6)
+#define DA7280_E_OC_FAULT_SHIFT 7
+#define DA7280_E_OC_FAULT_MASK BIT(7)
+
+/* DA7280_IRQ_EVENT_WARNING_DIAG (Address 0x04) */
+#define DA7280_E_OVERTEMP_WARN_SHIFT 3
+#define DA7280_E_OVERTEMP_WARN_MASK BIT(3)
+#define DA7280_E_MEM_TYPE_SHIFT 4
+#define DA7280_E_MEM_TYPE_MASK BIT(4)
+#define DA7280_E_LIM_DRIVE_ACC_SHIFT 6
+#define DA7280_E_LIM_DRIVE_ACC_MASK BIT(6)
+#define DA7280_E_LIM_DRIVE_SHIFT 7
+#define DA7280_E_LIM_DRIVE_MASK BIT(7)
+
+/* DA7280_IRQ_EVENT_PAT_DIAG (Address 0x05) */
+#define DA7280_E_PWM_FAULT_SHIFT 5
+#define DA7280_E_PWM_FAULT_MASK BIT(5)
+#define DA7280_E_MEM_FAULT_SHIFT 6
+#define DA7280_E_MEM_FAULT_MASK BIT(6)
+#define DA7280_E_SEQ_ID_FAULT_SHIFT 7
+#define DA7280_E_SEQ_ID_FAULT_MASK BIT(7)
+
+/* DA7280_IRQ_STATUS1 (Address 0x06) */
+#define DA7280_STA_SEQ_CONTINUE_SHIFT 0
+#define DA7280_STA_SEQ_CONTINUE_MASK BIT(0)
+#define DA7280_STA_UVLO_VBAT_OK_SHIFT 1
+#define DA7280_STA_UVLO_VBAT_OK_MASK BIT(1)
+#define DA7280_STA_SEQ_DONE_SHIFT 2
+#define DA7280_STA_SEQ_DONE_MASK BIT(2)
+#define DA7280_STA_OVERTEMP_CRIT_SHIFT 3
+#define DA7280_STA_OVERTEMP_CRIT_MASK BIT(3)
+#define DA7280_STA_SEQ_FAULT_SHIFT 4
+#define DA7280_STA_SEQ_FAULT_MASK BIT(4)
+#define DA7280_STA_WARNING_SHIFT 5
+#define DA7280_STA_WARNING_MASK BIT(5)
+#define DA7280_STA_ACTUATOR_SHIFT 6
+#define DA7280_STA_ACTUATOR_MASK BIT(6)
+#define DA7280_STA_OC_SHIFT 7
+#define DA7280_STA_OC_MASK BIT(7)
+
+/* DA7280_IRQ_MASK1 (Address 0x07) */
+#define DA7280_SEQ_CONTINUE_M_SHIFT 0
+#define DA7280_SEQ_CONTINUE_M_MASK BIT(0)
+#define DA7280_E_UVLO_M_SHIFT 1
+#define DA7280_E_UVLO_M_MASK BIT(1)
+#define DA7280_SEQ_DONE_M_SHIFT 2
+#define DA7280_SEQ_DONE_M_MASK BIT(2)
+#define DA7280_OVERTEMP_CRIT_M_SHIFT 3
+#define DA7280_OVERTEMP_CRIT_M_MASK BIT(3)
+#define DA7280_SEQ_FAULT_M_SHIFT 4
+#define DA7280_SEQ_FAULT_M_MASK BIT(4)
+#define DA7280_WARNING_M_SHIFT 5
+#define DA7280_WARNING_M_MASK BIT(5)
+#define DA7280_ACTUATOR_M_SHIFT 6
+#define DA7280_ACTUATOR_M_MASK BIT(6)
+#define DA7280_OC_M_SHIFT 7
+#define DA7280_OC_M_MASK BIT(7)
+
+/* DA7280_CIF_I2C1 (Address 0x08) */
+#define DA7280_I2C_TO_ENABLE_SHIFT 6
+#define DA7280_I2C_TO_ENABLE_MASK BIT(6)
+#define DA7280_I2C_WR_MODE_SHIFT 7
+#define DA7280_I2C_WR_MODE_MASK BIT(7)
+
+/* DA7280_FRQ_LRA_PER_H (Address 0x0a) */
+#define DA7280_LRA_PER_H_SHIFT 0
+#define DA7280_LRA_PER_H_MASK (255 << 0)
+
+/* DA7280_FRQ_LRA_PER_L (Address 0x0b) */
+#define DA7280_LRA_PER_L_SHIFT 0
+#define DA7280_LRA_PER_L_MASK (127 << 0)
+
+/* DA7280_ACTUATOR1 (Address 0x0c) */
+#define DA7280_ACTUATOR_NOMMAX_SHIFT 0
+#define DA7280_ACTUATOR_NOMMAX_MASK (255 << 0)
+
+/* DA7280_ACTUATOR2 (Address 0x0d) */
+#define DA7280_ACTUATOR_ABSMAX_SHIFT 0
+#define DA7280_ACTUATOR_ABSMAX_MASK (255 << 0)
+
+/* DA7280_ACTUATOR3 (Address 0x0e) */
+#define DA7280_IMAX_SHIFT 0
+#define DA7280_IMAX_MASK (31 << 0)
+
+/* DA7280_CALIB_V2I_H (Address 0x0f) */
+#define DA7280_V2I_FACTOR_H_SHIFT 0
+#define DA7280_V2I_FACTOR_H_MASK (255 << 0)
+
+/* DA7280_CALIB_V2I_L (Address 0x10) */
+#define DA7280_V2I_FACTOR_L_SHIFT 0
+#define DA7280_V2I_FACTOR_L_MASK (255 << 0)
+
+/* DA7280_CALIB_IMP_H (Address 0x11) */
+#define DA7280_IMPEDANCE_H_SHIFT 0
+#define DA7280_IMPEDANCE_H_MASK (255 << 0)
+
+/* DA7280_CALIB_IMP_L (Address 0x12) */
+#define DA7280_IMPEDANCE_L_SHIFT 0
+#define DA7280_IMPEDANCE_L_MASK (3 << 0)
+
+/* DA7280_TOP_CFG1 (Address 0x13) */
+#define DA7280_AMP_PID_EN_SHIFT 0
+#define DA7280_AMP_PID_EN_MASK BIT(0)
+#define DA7280_RAPID_STOP_EN_SHIFT 1
+#define DA7280_RAPID_STOP_EN_MASK BIT(1)
+#define DA7280_ACCELERATION_EN_SHIFT 2
+#define DA7280_ACCELERATION_EN_MASK BIT(2)
+#define DA7280_FREQ_TRACK_EN_SHIFT 3
+#define DA7280_FREQ_TRACK_EN_MASK BIT(3)
+#define DA7280_BEMF_SENSE_EN_SHIFT 4
+#define DA7280_BEMF_SENSE_EN_MASK BIT(4)
+#define DA7280_ACTUATOR_TYPE_SHIFT 5
+#define DA7280_ACTUATOR_TYPE_MASK BIT(5)
+#define DA7280_EMBEDDED_MODE_SHIFT 7
+#define DA7280_EMBEDDED_MODE_MASK BIT(7)
+
+/* DA7280_TOP_CFG2 (Address 0x14) */
+#define DA7280_FULL_BRAKE_THR_SHIFT 0
+#define DA7280_FULL_BRAKE_THR_MASK (15 << 0)
+#define DA7280_MEM_DATA_SIGNED_SHIFT 4
+#define DA7280_MEM_DATA_SIGNED_MASK BIT(4)
+
+/* DA7280_TOP_CFG3 (Address 0x15) */
+#define DA7280_VDD_MARGIN_SHIFT 0
+#define DA7280_VDD_MARGIN_MASK (15 << 0)
+
+/* DA7280_TOP_CFG4 (Address 0x16) */
+#define DA7280_TST_CALIB_IMPEDANCE_DIS_SHIFT 6
+#define DA7280_TST_CALIB_IMPEDANCE_DIS_MASK BIT(6)
+#define DA7280_V2I_FACTOR_FREEZE_SHIFT 7
+#define DA7280_V2I_FACTOR_FREEZE_MASK BIT(7)
+
+/* DA7280_TOP_INT_CFG1 (Address 0x17) */
+#define DA7280_BEMF_FAULT_LIM_SHIFT 0
+#define DA7280_BEMF_FAULT_LIM_MASK (3 << 0)
+#define DA7280_FRQ_LOCKED_LIM_SHIFT 2
+#define DA7280_FRQ_LOCKED_LIM_MASK (63 << 2)
+
+/* DA7280_TOP_INT_CFG6_H (Address 0x1c) */
+#define DA7280_FRQ_PID_KP_H_SHIFT 0
+#define DA7280_FRQ_PID_KP_H_MASK (255 << 0)
+
+/* DA7280_TOP_INT_CFG6_L (Address 0x1d) */
+#define DA7280_FRQ_PID_KP_L_SHIFT 0
+#define DA7280_FRQ_PID_KP_L_MASK (255 << 0)
+
+/* DA7280_TOP_INT_CFG7_H (Address 0x1e) */
+#define DA7280_FRQ_PID_KI_H_SHIFT 0
+#define DA7280_FRQ_PID_KI_H_MASK (255 << 0)
+
+/* DA7280_TOP_INT_CFG7_L (Address 0x1f) */
+#define DA7280_FRQ_PID_KI_L_SHIFT 0
+#define DA7280_FRQ_PID_KI_L_MASK (255 << 0)
+
+/* DA7280_TOP_INT_CFG8 (Address 0x20) */
+#define DA7280_TST_FRQ_TRACK_BEMF_LIM_SHIFT 0
+#define DA7280_TST_FRQ_TRACK_BEMF_LIM_MASK (15 << 0)
+#define DA7280_TST_AMP_RAPID_STOP_LIM_SHIFT 4
+#define DA7280_TST_AMP_RAPID_STOP_LIM_MASK (7 << 4)
+
+/* DA7280_TOP_CTL1 (Address 0x22) */
+#define DA7280_OPERATION_MODE_SHIFT 0
+#define DA7280_OPERATION_MODE_MASK (7 << 0)
+#define DA7280_STANDBY_EN_SHIFT 3
+#define DA7280_STANDBY_EN_MASK BIT(3)
+#define DA7280_SEQ_START_SHIFT 4
+#define DA7280_SEQ_START_MASK BIT(4)
+
+/* DA7280_TOP_CTL2 (Address 0x23) */
+#define DA7280_OVERRIDE_VAL_SHIFT 0
+#define DA7280_OVERRIDE_VAL_MASK (255 << 0)
+
+/* DA7280_SEQ_CTL1 (Address 0x24) */
+#define DA7280_SEQ_CONTINUE_SHIFT 0
+#define DA7280_SEQ_CONTINUE_MASK BIT(0)
+#define DA7280_WAVEGEN_MODE_SHIFT 1
+#define DA7280_WAVEGEN_MODE_MASK BIT(1)
+#define DA7280_FREQ_WAVEFORM_TIMEBASE_SHIFT 2
+#define DA7280_FREQ_WAVEFORM_TIMEBASE_MASK BIT(2)
+
+/* DA7280_SWG_C1 (Address 0x25) */
+#define DA7280_CUSTOM_WAVE_GEN_COEFF1_SHIFT 0
+#define DA7280_CUSTOM_WAVE_GEN_COEFF1_MASK (255 << 0)
+
+/* DA7280_SWG_C2 (Address 0x26) */
+#define DA7280_CUSTOM_WAVE_GEN_COEFF2_SHIFT 0
+#define DA7280_CUSTOM_WAVE_GEN_COEFF2_MASK (255 << 0)
+
+/* DA7280_SWG_C3 (Address 0x27) */
+#define DA7280_CUSTOM_WAVE_GEN_COEFF3_SHIFT 0
+#define DA7280_CUSTOM_WAVE_GEN_COEFF3_MASK (255 << 0)
+
+/* DA7280_SEQ_CTL2 (Address 0x28) */
+#define DA7280_PS_SEQ_ID_SHIFT 0
+#define DA7280_PS_SEQ_ID_MASK (15 << 0)
+#define DA7280_PS_SEQ_LOOP_SHIFT 4
+#define DA7280_PS_SEQ_LOOP_MASK (15 << 4)
+
+/* DA7280_GPIO_0_CTL (Address 0x29) */
+#define DA7280_GPI0_POLARITY_SHIFT 0
+#define DA7280_GPI0_POLARITY_MASK (3 << 0)
+#define DA7280_GPI0_MODE_SHIFT 2
+#define DA7280_GPI0_MODE_MASK BIT(2)
+#define DA7280_GPI0_SEQUENCE_ID_SHIFT 3
+#define DA7280_GPI0_SEQUENCE_ID_MASK (15 << 3)
+
+/* DA7280_GPIO_1_CTL (Address 0x2a) */
+#define DA7280_GPI1_POLARITY_SHIFT 0
+#define DA7280_GPI1_POLARITY_MASK (3 << 0)
+#define DA7280_GPI1_MODE_SHIFT 2
+#define DA7280_GPI1_MODE_MASK BIT(2)
+#define DA7280_GPI1_SEQUENCE_ID_SHIFT 3
+#define DA7280_GPI1_SEQUENCE_ID_MASK (15 << 3)
+
+/* DA7280_GPIO_2_CTL (Address 0x2b) */
+#define DA7280_GPI2_POLARITY_SHIFT 0
+#define DA7280_GPI2_POLARITY_MASK (3 << 0)
+#define DA7280_GPI2_MODE_SHIFT 2
+#define DA7280_GPI2_MODE_MASK BIT(2)
+#define DA7280_GPI2_SEQUENCE_ID_SHIFT 3
+#define DA7280_GPI2_SEQUENCE_ID_MASK (15 << 3)
+
+/* DA7280_MEM_CTL1 (Address 0x2c) */
+#define DA7280_WAV_MEM_BASE_ADDR_SHIFT 0
+#define DA7280_WAV_MEM_BASE_ADDR_MASK (255 << 0)
+
+/* DA7280_MEM_CTL2 (Address 0x2d) */
+#define DA7280_WAV_MEM_LOCK_SHIFT 7
+#define DA7280_WAV_MEM_LOCK_MASK BIT(7)
+
+/* DA7280_ADC_DATA_H1 (Address 0x2e) */
+#define DA7280_ADC_VDD_H_SHIFT 0
+#define DA7280_ADC_VDD_H_MASK (255 << 0)
+
+/* DA7280_ADC_DATA_L1 (Address 0x2f) */
+#define DA7280_ADC_VDD_L_SHIFT 0
+#define DA7280_ADC_VDD_L_MASK (127 << 0)
+
+/* DA7280_POLARITY (Address 0x43) */
+#define DA7280_POLARITY_SHIFT 0
+#define DA7280_POLARITY_MASK BIT(0)
+
+/* DA7280_LRA_AVR_H (Address 0x44) */
+#define DA7280_LRA_PER_AVERAGE_H_SHIFT 0
+#define DA7280_LRA_PER_AVERAGE_H_MASK (255 << 0)
+
+/* DA7280_LRA_AVR_L (Address 0x45) */
+#define DA7280_LRA_PER_AVERAGE_L_SHIFT 0
+#define DA7280_LRA_PER_AVERAGE_L_MASK (127 << 0)
+
+/* DA7280_FRQ_LRA_PER_ACT_H (Address 0x46) */
+#define DA7280_LRA_PER_ACTUAL_H_SHIFT 0
+#define DA7280_LRA_PER_ACTUAL_H_MASK (255 << 0)
+
+/* DA7280_FRQ_LRA_PER_ACT_L (Address 0x47) */
+#define DA7280_LRA_PER_ACTUAL_L_SHIFT 0
+#define DA7280_LRA_PER_ACTUAL_L_MASK (127 << 0)
+
+/* DA7280_FRQ_PHASE_H (Address 0x48) */
+#define DA7280_DELAY_H_SHIFT 0
+#define DA7280_DELAY_H_MASK (255 << 0)
+
+/* DA7280_FRQ_PHASE_L (Address 0x49) */
+#define DA7280_DELAY_SHIFT_L_SHIFT 0
+#define DA7280_DELAY_SHIFT_L_MASK (7 << 0)
+#define DA7280_DELAY_FREEZE_SHIFT 7
+#define DA7280_DELAY_FREEZE_MASK BIT(7)
+
+/* DA7280_FRQ_CTL (Address 0x4c) */
+#define DA7280_FREQ_TRACKING_FORCE_ON_SHIFT 0
+#define DA7280_FREQ_TRACKING_FORCE_ON_MASK BIT(0)
+#define DA7280_FREQ_TRACKING_AUTO_ADJ_SHIFT 1
+#define DA7280_FREQ_TRACKING_AUTO_ADJ_MASK BIT(1)
+
+/* DA7280_TRIM3 (Address 0x5f) */
+#define DA7280_REF_UVLO_THRES_SHIFT 3
+#define DA7280_REF_UVLO_THRES_MASK (3 << 3)
+#define DA7280_LOOP_FILT_LOW_BW_SHIFT 5
+#define DA7280_LOOP_FILT_LOW_BW_MASK BIT(5)
+#define DA7280_LOOP_IDAC_DOUBLE_RANGE_SHIFT 6
+#define DA7280_LOOP_IDAC_DOUBLE_RANGE_MASK BIT(6)
+
+/* DA7280_TRIM4 (Address 0x60) */
+#define DA7280_LOOP_FILT_RES_TRIM_SHIFT 0
+#define DA7280_LOOP_FILT_RES_TRIM_MASK (3 << 0)
+#define DA7280_LOOP_FILT_CAP_TRIM_SHIFT 2
+#define DA7280_LOOP_FILT_CAP_TRIM_MASK (3 << 2)
+
+/* DA7280_TRIM6 (Address 0x62) */
+#define DA7280_HBRIDGE_ERC_HS_TRIM_SHIFT 0
+#define DA7280_HBRIDGE_ERC_HS_TRIM_MASK (3 << 0)
+#define DA7280_HBRIDGE_ERC_LS_TRIM_SHIFT 2
+#define DA7280_HBRIDGE_ERC_LS_TRIM_MASK (3 << 2)
+
+/* DA7280_TOP_CFG5 (Address 0x6e) */
+#define DA7280_V2I_FACTOR_OFFSET_EN_SHIFT 0
+#define DA7280_V2I_FACTOR_OFFSET_EN_MASK BIT(0)
+#define DA7280_FRQ_PAUSE_ON_POLARITY_CHANGE_SHIFT 1
+#define DA7280_FRQ_PAUSE_ON_POLARITY_CHANGE_MASK BIT(1)
+#define DA7280_DELAY_BYPASS_SHIFT 2
+#define DA7280_DELAY_BYPASS_MASK BIT(2)
+
+/* DA7280_IRQ_EVENT_ACTUATOR_FAULT (Address 0x81) */
+#define DA7280_ADC_SAT_FAULT_SHIFT 2
+#define DA7280_ADC_SAT_FAULT_MASK BIT(2)
+
+/* DA7280_IRQ_STATUS2 (Address 0x82) */
+#define DA7280_STA_ADC_SAT_SHIFT 7
+#define DA7280_STA_ADC_SAT_MASK BIT(7)
+
+/* DA7280_IRQ_MASK2 (Address 0x83) */
+#define DA7280_ADC_SAT_M_SHIFT 7
+#define DA7280_ADC_SAT_M_MASK BIT(7)
+
+/* DA7280_SNP_MEM_XX (Address 0x84 ~ 0xe7) */
+#define DA7280_SNP_MEM_SHIFT 0
+#define DA7280_SNP_MEM_MASK (255 << 0)
+
+#endif
--
end-of-patch for RESEND PATCH V8
^ permalink raw reply related [flat|nested] 8+ messages in thread
* [RESEND PATCH V8 3/3] Input: new da7280 haptic driver
@ 2020-02-11 1:13 ` Roy Im
0 siblings, 0 replies; 8+ messages in thread
From: Roy Im @ 2020-02-11 1:13 UTC (permalink / raw)
To: Uwe Kleine-Koenig, Bartosz Golaszewski, Brian Masney,
Dmitry Torokhov, Greg KH, Lee Jones, Luca Weiss, Maximilian Luz,
Pascal PAILLET-LME, Rob Herring, Samuel Ortiz, Thierry Reding,
Thomas Gleixner
Cc: Support Opensource, linux-input, linux-kernel, linux-pwm
Adds support for the Dialog DA7280 LRA/ERM Haptic Driver with
multiple mode and integrated waveform memory and wideband support.
It communicates via an I2C bus to the device.
Signed-off-by: Roy Im <roy.im.opensource@diasemi.com>
---
v8:
- Added changes to support FF_PERIODIC/FF_CUSTOM and FF_CONSTANT.
- Updated the dt-related code.
- Removed memless related functions.
v7:
- Added more attributes to handle one value per file.
- Replaced and updated the dt-related code and functions called.
- Fixed error/functions.
- Rebased to v4.19-rc6.
v6: No changes.
v5: Fixed errors in Kconfig file.
v4: Updated code as dt-bindings are changed.
v3: No changes.
v2: Fixed kbuild error/warning
drivers/input/misc/Kconfig | 13 +
drivers/input/misc/Makefile | 1 +
drivers/input/misc/da7280.c | 1688 +++++++++++++++++++++++++++++++++++++++++++
drivers/input/misc/da7280.h | 412 +++++++++++
4 files changed, 2114 insertions(+)
create mode 100644 drivers/input/misc/da7280.c
create mode 100644 drivers/input/misc/da7280.h
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index 7e2e658..e2bf442 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -879,4 +879,17 @@ config INPUT_STPMIC1_ONKEY
To compile this driver as a module, choose M here: the
module will be called stpmic1_onkey.
+config INPUT_DA7280_HAPTICS
+ tristate "Dialog Semiconductor DA7280 haptics support"
+ depends on INPUT && I2C
+ select INPUT_FF_MEMLESS
+ select REGMAP_I2C
+ help
+ Say Y to enable support for the Dialog DA7280 haptics driver.
+ The haptics can be controlled by i2c communication,
+ or by PWM input, or by GPI.
+
+ To compile this driver as a module, choose M here: the
+ module will be called da7280.
+
endif
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
index 8fd187f..71dc381 100644
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -25,6 +25,7 @@ obj-$(CONFIG_INPUT_CMA3000) += cma3000_d0x.o
obj-$(CONFIG_INPUT_CMA3000_I2C) += cma3000_d0x_i2c.o
obj-$(CONFIG_INPUT_COBALT_BTNS) += cobalt_btns.o
obj-$(CONFIG_INPUT_CPCAP_PWRBUTTON) += cpcap-pwrbutton.o
+obj-$(CONFIG_INPUT_DA7280_HAPTICS) += da7280.o
obj-$(CONFIG_INPUT_DA9052_ONKEY) += da9052_onkey.o
obj-$(CONFIG_INPUT_DA9055_ONKEY) += da9055_onkey.o
obj-$(CONFIG_INPUT_DA9063_ONKEY) += da9063_onkey.o
diff --git a/drivers/input/misc/da7280.c b/drivers/input/misc/da7280.c
new file mode 100644
index 0000000..4d1d1fc
--- /dev/null
+++ b/drivers/input/misc/da7280.c
@@ -0,0 +1,1688 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * DA7280 Haptic device driver
+ *
+ * Copyright (c) 2019 Dialog Semiconductor.
+ * Author: Roy Im <Roy.Im.Opensource@diasemi.com>
+ */
+
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/pwm.h>
+#include <linux/regmap.h>
+#include <linux/workqueue.h>
+#include <linux/uaccess.h>
+#include "da7280.h"
+
+/* uV unit for voltage rate */
+#define DA7280_VOLTAGE_RATE_MAX 6000000
+#define DA7280_VOLTAGE_RATE_STEP 23400
+#define DA7280_NOMMAX_DFT 0x6B
+#define DA7280_ABSMAX_DFT 0x78
+
+#define DA7280_IMPD_MAX 1500000000
+#define DA7280_IMPD_DEFAULT 22000000
+
+#define DA7280_IMAX_DEFAULT 0x0E
+/* uA unit step and limit for IMAX*/
+#define DA7280_IMAX_STEP 7200
+#define DA7280_IMAX_LIMIT 252000
+
+#define DA7280_RESONT_FREQH_DFT 0x39
+#define DA7280_RESONT_FREQL_DFT 0x32
+#define DA7280_MIN_RESONAT_FREQ_HZ 50
+#define DA7280_MAX_RESONAT_FREQ_HZ 300
+#define DA7280_MIN_PWM_FREQ_KHZ 10
+#define DA7280_MAX_PWM_FREQ_KHZ 250
+
+#define DA7280_SEQ_ID_MAX 15
+#define DA7280_SEQ_LOOP_MAX 15
+#define DA7280_GPI1_SEQ_ID_DEFT 0x0
+
+#define DA7280_SNP_MEM_SIZE 100
+#define DA7280_SNP_MEM_MAX DA7280_SNP_MEM_99
+
+#define IRQ_NUM 3
+
+#define DA7280_SKIP_INIT 0x100
+
+#define DA7280_FF_EFFECT_COUNT_MAX 15
+
+enum da7280_haptic_dev_t {
+ DA7280_LRA = 0,
+ DA7280_ERM_BAR = 1,
+ DA7280_ERM_COIN = 2,
+ DA7280_DEV_MAX,
+};
+
+enum da7280_op_mode {
+ DA7280_INACTIVE = 0,
+ DA7280_DRO_MODE = 1,
+ DA7280_PWM_MODE = 2,
+ DA7280_RTWM_MODE = 3,
+ DA7280_ETWM_MODE = 4,
+ DA7280_OPMODE_MAX,
+};
+
+#define DA7280_FF_CONSTANT_DRO 1
+#define DA7280_FF_PERIODIC_PWM 2
+#define DA7280_FF_PERIODIC_RTWM 1
+#define DA7280_FF_PERIODIC_ETWM 2
+
+#define DA7280_FF_PERIODIC_MODE DA7280_RTWM_MODE
+#define DA7280_FF_CONSTANT_MODE DA7280_DRO_MODE
+
+enum da7280_custom_effect_param {
+ DA7280_CUSTOM_DATA_SEQ_ID_IDX = 0,
+ DA7280_CUSTOM_DATA_SEQ_LOOP_IDX = 1,
+ DA7280_CUSTOM_DATA_LEN = 2,
+};
+
+struct da7280_gpi_ctl {
+ u8 seq_id;
+ u8 mode;
+ u8 polarity;
+};
+
+struct da7280_haptic {
+ struct regmap *regmap;
+ struct input_dev *input_dev;
+ struct device *dev;
+ struct i2c_client *client;
+ struct pwm_device *pwm_dev;
+
+ bool legacy;
+ int pwm_id;
+ struct delayed_work work_duration;
+ struct work_struct work_playback;
+ struct work_struct work_setgain;
+ int val;
+ u16 gain;
+
+ s16 level;
+
+ u8 dev_type;
+ u8 op_mode;
+ u8 const_op_mode;
+ u8 periodic_op_mode;
+ u16 nommax;
+ u16 absmax;
+ u32 imax;
+ u32 impd;
+ u32 resonant_freq_h;
+ u32 resonant_freq_l;
+ bool bemf_sense_en;
+ bool freq_track_en;
+ bool acc_en;
+ bool rapid_stop_en;
+ bool amp_pid_en;
+ u8 ps_seq_id;
+ u8 ps_seq_loop;
+ struct da7280_gpi_ctl gpi_ctl[3];
+ bool mem_update;
+ u8 snp_mem[DA7280_SNP_MEM_SIZE];
+ u8 enabled;
+ int length_ms;
+};
+
+static bool da7280_volatile_register(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case DA7280_IRQ_EVENT1:
+ case DA7280_IRQ_EVENT_WARNING_DIAG:
+ case DA7280_IRQ_EVENT_SEQ_DIAG:
+ case DA7280_IRQ_STATUS1:
+ case DA7280_TOP_CTL1:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static const struct regmap_config da7280_haptic_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = DA7280_SNP_MEM_MAX,
+ .volatile_reg = da7280_volatile_register,
+};
+
+static int da7280_haptic_mem_update(struct da7280_haptic *haptics)
+{
+ int error;
+ unsigned int val;
+
+ /* It is recommended to update the patterns
+ * during haptic is not working in order to avoid conflict
+ */
+ error = regmap_read(haptics->regmap, DA7280_IRQ_STATUS1, &val);
+ if (error)
+ return error;
+ if (val & DA7280_STA_WARNING_MASK) {
+ dev_warn(haptics->dev,
+ "Warning! Please check HAPTIC status.\n");
+ return -EBUSY;
+ }
+
+ /* Patterns are not updated if the lock bit is enabled */
+ val = 0;
+ error = regmap_read(haptics->regmap, DA7280_MEM_CTL2, &val);
+ if (error)
+ return error;
+ if (~val & DA7280_WAV_MEM_LOCK_MASK) {
+ dev_warn(haptics->dev,
+ "Please unlock the bit first\n");
+ return -EACCES;
+ }
+
+ /* Set to Inactive mode to make sure safety */
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_CTL1,
+ DA7280_OPERATION_MODE_MASK,
+ 0);
+ if (error)
+ return error;
+
+ error = regmap_read(haptics->regmap, DA7280_MEM_CTL1, &val);
+ if (error)
+ return error;
+
+ return regmap_bulk_write(haptics->regmap, val,
+ haptics->snp_mem, DA7280_SNP_MEM_MAX - val + 1);
+}
+
+static int da7280_haptic_set_pwm(struct da7280_haptic *haptics)
+{
+ struct pwm_args pargs;
+ u64 period_mag_multi;
+ unsigned int pwm_duty;
+ int error;
+
+ pwm_get_args(haptics->pwm_dev, &pargs);
+ period_mag_multi =
+ (u64)(pargs.period * haptics->gain);
+ if (haptics->acc_en)
+ pwm_duty =
+ (unsigned int)(period_mag_multi >> 16);
+ else
+ pwm_duty =
+ (unsigned int)((period_mag_multi >> 16)
+ + pargs.period) / 2;
+
+ error = pwm_config(haptics->pwm_dev,
+ pwm_duty, pargs.period);
+ if (error) {
+ dev_err(haptics->dev,
+ "failed to configure pwm : %d\n", error);
+ return error;
+ }
+
+ error = pwm_enable(haptics->pwm_dev);
+ if (error) {
+ pwm_disable(haptics->pwm_dev);
+ dev_err(haptics->dev,
+ "failed to enable haptics pwm device : %d\n", error);
+ }
+
+ return error;
+}
+
+static void da7280_haptic_enable(struct da7280_haptic *haptics)
+{
+ int error = 0;
+
+ if (haptics->enabled)
+ return;
+
+ switch (haptics->op_mode) {
+ case DA7280_DRO_MODE:
+ /* the valid range check when acc_en is enabled */
+ if (haptics->acc_en && haptics->level > 0x7F)
+ haptics->level = 0x7F;
+ else if (haptics->level > 0xFF)
+ haptics->level = 0xFF;
+
+ /* Set driver level
+ * as a % of ACTUATOR_NOMMAX(nommax)
+ */
+ error = regmap_write(haptics->regmap,
+ DA7280_TOP_CTL2,
+ haptics->level);
+ if (error) {
+ dev_err(haptics->dev,
+ "i2c err (%d) for driving level (%d)\n",
+ error, haptics->level);
+ return;
+ }
+ break;
+ case DA7280_PWM_MODE:
+ if (da7280_haptic_set_pwm(haptics))
+ return;
+ break;
+ case DA7280_RTWM_MODE:
+ /* The pattern will be played by
+ * the PS_SEQ_ID and the PS_SEQ_LOOP
+ */
+ case DA7280_ETWM_MODE:
+ /* The pattern will be played by
+ * the GPI[N] state, GPI(N)_SEQUENCE_ID
+ * and the PS_SEQ_LOOP.
+ * please see the datasheet for the details.
+ */
+ break;
+ default:
+ dev_err(haptics->dev,
+ "Invalid Mode(%d)\n", haptics->op_mode);
+ return;
+ }
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_CTL1,
+ DA7280_OPERATION_MODE_MASK,
+ haptics->op_mode);
+ if (error) {
+ dev_err(haptics->dev,
+ "i2c err for op_mode setting : %d\n", error);
+ return;
+ }
+
+ if (haptics->op_mode == DA7280_PWM_MODE ||
+ haptics->op_mode == DA7280_RTWM_MODE) {
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_CTL1,
+ DA7280_SEQ_START_MASK,
+ DA7280_SEQ_START_MASK);
+ if (error) {
+ dev_err(haptics->dev,
+ "i2c err for sequence triggering : %d\n",
+ error);
+ return;
+ }
+ }
+
+ haptics->enabled = true;
+ if (haptics->length_ms && haptics->op_mode == DA7280_DRO_MODE)
+ schedule_delayed_work(&haptics->work_duration,
+ msecs_to_jiffies(haptics->length_ms));
+}
+
+static void da7280_haptic_disable(struct da7280_haptic *haptics)
+{
+ int error;
+
+ if (!haptics->enabled)
+ return;
+
+ /* Set to Inactive mode */
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_CTL1,
+ DA7280_OPERATION_MODE_MASK, 0);
+ if (error) {
+ dev_err(haptics->dev,
+ "i2c err for op_mode off : %d\n", error);
+ return;
+ }
+
+ switch (haptics->op_mode) {
+ case DA7280_DRO_MODE:
+ error = regmap_write(haptics->regmap,
+ DA7280_TOP_CTL2, 0);
+ if (error) {
+ dev_err(haptics->dev,
+ "i2c err for DRO mode off : %d\n",
+ error);
+ return;
+ }
+ break;
+ case DA7280_PWM_MODE:
+ pwm_disable(haptics->pwm_dev);
+ break;
+ case DA7280_RTWM_MODE:
+ case DA7280_ETWM_MODE:
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_CTL1,
+ DA7280_SEQ_START_MASK, 0);
+ if (error) {
+ dev_err(haptics->dev,
+ "i2c err for RTWM or ETWM mode off : %d\n",
+ error);
+ return;
+ }
+ break;
+ default:
+ dev_err(haptics->dev,
+ "Invalid Mode(%d)\n", haptics->op_mode);
+ return;
+ }
+
+ haptics->enabled = false;
+}
+
+static void da7280_haptic_work_duration(struct work_struct *work)
+{
+ struct da7280_haptic *haptics =
+ container_of(work, struct da7280_haptic, work_duration.work);
+
+ da7280_haptic_disable(haptics);
+}
+
+static void da7280_haptic_work_playback(struct work_struct *work)
+{
+ struct da7280_haptic *haptics =
+ container_of(work, struct da7280_haptic, work_playback);
+ int val = haptics->val;
+
+ if (!!val)
+ da7280_haptic_enable(haptics);
+ else
+ da7280_haptic_disable(haptics);
+}
+
+static void da7280_haptic_work_setgain(struct work_struct *work)
+{
+ struct da7280_haptic *haptics =
+ container_of(work, struct da7280_haptic, work_setgain);
+ u16 gain = haptics->gain;
+ int error = 0;
+
+ if (gain == 0)
+ return;
+
+ if (gain > 0x7fff)
+ gain = 0x7fff;
+
+ /* DRO and PWM modes support set_gain feature
+ */
+ switch (haptics->op_mode) {
+ case DA7280_DRO_MODE:
+ if (haptics->acc_en == 1) {
+ haptics->level = (u8)(gain * 0x7F / 0x7fff);
+ } else if (haptics->acc_en == 0) {
+ haptics->level = (u8)(gain * 0xFF / 0x7fff);
+
+ if (gain <= 0x3FFF)
+ haptics->level = haptics->level + 0x80;
+ else if (gain > 0x3FFF)
+ haptics->level = haptics->level - 0x80;
+ } else {
+ dev_err(haptics->dev, "Invalid acc_en %d.\n",
+ haptics->acc_en);
+ }
+
+ /* Set driver level
+ * as a % of ACTUATOR_NOMMAX(nommax)
+ */
+ error = regmap_write(haptics->regmap,
+ DA7280_TOP_CTL2,
+ haptics->level);
+ if (error) {
+ dev_err(haptics->dev,
+ "i2c err for driving level set : %d\n",
+ error);
+ return;
+ }
+ break;
+ case DA7280_PWM_MODE:
+ haptics->gain = gain;
+ if (haptics->enabled) {
+ if (da7280_haptic_set_pwm(haptics))
+ return;
+ }
+ break;
+ default:
+ dev_err(haptics->dev,
+ "Invalid Mode(%d). Change to DRM (Constant) mode.\n",
+ haptics->op_mode);
+ break;
+ }
+}
+
+static int da7280_haptics_upload_effect(struct input_dev *dev,
+ struct ff_effect *effect,
+ struct ff_effect *old)
+{
+ struct da7280_haptic *haptics = input_get_drvdata(dev);
+ int error;
+ s16 level;
+ int tmp, i;
+ unsigned int val;
+ s16 data[DA7280_SNP_MEM_SIZE] = {0,};
+
+ switch (effect->type) {
+ /* DRO/PWM modes support this type */
+ case FF_CONSTANT:
+ haptics->op_mode = haptics->const_op_mode;
+ /* effect->replay.length should be ms base */
+ haptics->length_ms = effect->replay.length;
+ level = effect->u.constant.level;
+ tmp = level * 254;
+ haptics->level = tmp / 0x7FFF;
+ break;
+
+ /* RTWM/ETWM modes support this type */
+ case FF_PERIODIC:
+ if (effect->u.periodic.waveform != FF_CUSTOM) {
+ dev_err(haptics->dev, "Only accept FF_CUSTOM type\n");
+ return -EINVAL;
+ }
+
+ /*
+ * Load the data and check the length.
+ * the data will be patterns in this case: 3 < X <= 100,
+ * and will be saved into the waveform memory inside DA728x.
+ * If X = 2, the data will be PS_SEQ_ID and PS_SEQ_LOOP .
+ */
+ if (effect->u.periodic.custom_len == DA7280_CUSTOM_DATA_LEN)
+ goto set_id_loop;
+
+ if (effect->u.periodic.custom_len < DA7280_CUSTOM_DATA_LEN ||
+ effect->u.periodic.custom_len > DA7280_SNP_MEM_SIZE) {
+ dev_err(haptics->dev, "Invalid data size\n");
+ return -EINVAL;
+ }
+
+ if (copy_from_user(data, effect->u.periodic.custom_data,
+ sizeof(s16) *
+ effect->u.periodic.custom_len)) {
+ dev_err(haptics->dev,
+ "custom data load error\n");
+ return -EFAULT;
+ }
+
+ memset(haptics->snp_mem, 0, DA7280_SNP_MEM_SIZE);
+
+ for (i = 0; i < effect->u.periodic.custom_len; i++) {
+ if (data[i] <= 0xff) {
+ haptics->snp_mem[i] = (u8)data[i];
+ } else {
+ dev_err(haptics->dev,
+ "Invalid data in the custom data\n");
+ return -EINVAL;
+ }
+ }
+
+ error = da7280_haptic_mem_update(haptics);
+ if (error) {
+ dev_err(haptics->dev,
+ "mem update error: %d\n",
+ error);
+ return error;
+ }
+ break;
+
+set_id_loop:
+ if (copy_from_user(data, effect->u.periodic.custom_data,
+ sizeof(s16) * DA7280_CUSTOM_DATA_LEN)) {
+ dev_err(haptics->dev,
+ "custom id/loop load error\n");
+ return -EFAULT;
+ }
+
+ haptics->ps_seq_id =
+ data[DA7280_CUSTOM_DATA_SEQ_ID_IDX] <=
+ DA7280_SEQ_ID_MAX ?
+ data[DA7280_CUSTOM_DATA_SEQ_ID_IDX] : 0;
+
+ haptics->ps_seq_loop =
+ data[DA7280_CUSTOM_DATA_SEQ_LOOP_IDX] <=
+ DA7280_SEQ_LOOP_MAX ?
+ data[DA7280_CUSTOM_DATA_SEQ_LOOP_IDX] : 0;
+
+ haptics->op_mode = haptics->periodic_op_mode;
+
+ val = haptics->ps_seq_id << DA7280_PS_SEQ_ID_SHIFT |
+ haptics->ps_seq_loop << DA7280_PS_SEQ_LOOP_SHIFT;
+ error = regmap_write(haptics->regmap,
+ DA7280_SEQ_CTL2, val);
+ if (error) {
+ dev_err(haptics->dev,
+ "i2c err for driving level set : %d\n",
+ error);
+ return error;
+ }
+ break;
+
+ default:
+ dev_err(haptics->dev, "Unsupported effect type: %d\n",
+ effect->type);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int da7280_haptics_playback(struct input_dev *dev,
+ int effect_id, int val)
+{
+ struct da7280_haptic *haptics = input_get_drvdata(dev);
+
+ if (!haptics->op_mode) {
+ dev_warn(haptics->dev,
+ "Any effects are not uploaded yet\n");
+ return -EPERM;
+ }
+
+ haptics->val = val;
+ schedule_work(&haptics->work_playback);
+
+ return 0;
+}
+
+static void da7280_haptics_set_gain(struct input_dev *dev, u16 gain)
+{
+ struct da7280_haptic *haptics = input_get_drvdata(dev);
+
+ haptics->gain = gain;
+ schedule_work(&haptics->work_setgain);
+}
+
+static int da7280_haptic_open(struct input_dev *dev)
+{
+ struct da7280_haptic *haptics = input_get_drvdata(dev);
+ int error;
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_CTL1,
+ DA7280_STANDBY_EN_MASK,
+ DA7280_STANDBY_EN_MASK);
+ if (error)
+ dev_err(haptics->dev,
+ "Failed to open haptic, i2c error : %d\n", error);
+
+ return error;
+}
+
+static void da7280_haptic_close(struct input_dev *dev)
+{
+ struct da7280_haptic *haptics = input_get_drvdata(dev);
+ int error;
+
+ cancel_delayed_work_sync(&haptics->work_duration);
+ cancel_work_sync(&haptics->work_playback);
+ cancel_work_sync(&haptics->work_setgain);
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_CTL1,
+ DA7280_OPERATION_MODE_MASK, 0);
+ if (error)
+ goto error_i2c;
+
+ if (haptics->op_mode == DA7280_DRO_MODE) {
+ error = regmap_write(haptics->regmap,
+ DA7280_TOP_CTL2, 0);
+
+ if (error)
+ goto error_i2c;
+ }
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_CTL1,
+ DA7280_STANDBY_EN_MASK, 0);
+ if (error)
+ goto error_i2c;
+
+ return;
+
+error_i2c:
+ dev_err(haptics->dev, "DA7280-haptic i2c error : %d\n", error);
+}
+
+static u8 da7280_haptic_of_mode_str(struct device *dev,
+ const char *str)
+{
+ if (!strcmp(str, "LRA"))
+ return DA7280_LRA;
+ else if (!strcmp(str, "ERM-bar"))
+ return DA7280_ERM_BAR;
+ else if (!strcmp(str, "ERM-coin"))
+ return DA7280_ERM_COIN;
+
+ dev_warn(dev, "Invalid string - set to default\n");
+ return DA7280_LRA;
+}
+
+static u8 da7280_haptic_of_gpi_mode_str(struct device *dev,
+ const char *str)
+{
+ if (!strcmp(str, "Single-pattern"))
+ return 0;
+ else if (!strcmp(str, "Multi-pattern"))
+ return 1;
+
+ dev_warn(dev, "Invalid string - set to default\n");
+ return 0;
+}
+
+static u8 da7280_haptic_of_gpi_pol_str(struct device *dev,
+ const char *str)
+{
+ if (!strcmp(str, "Rising-edge"))
+ return 0;
+ else if (!strcmp(str, "Falling-edge"))
+ return 1;
+ else if (!strcmp(str, "Both-edge"))
+ return 2;
+
+ dev_warn(dev, "Invalid string - set to default\n");
+ return 0;
+}
+
+static u8 da7280_haptic_of_volt_rating_set(u32 val)
+{
+ u32 voltage;
+
+ voltage = val / DA7280_VOLTAGE_RATE_STEP + 1;
+
+ if (voltage > 0xFF)
+ return 0xFF;
+ return (u8)voltage;
+}
+
+static void da7280_parse_properties(struct device *dev,
+ struct da7280_haptic *haptics)
+{
+ char gpi_str1[] = "dlg,gpi0-seq-id";
+ char gpi_str2[] = "dlg,gpi0-mode";
+ char gpi_str3[] = "dlg,gpi0-polarity";
+ unsigned int i, mem[DA7280_SNP_MEM_SIZE];
+ const char *str;
+ u32 val;
+
+ if (!device_property_read_string(dev, "dlg,actuator-type", &str))
+ haptics->dev_type =
+ da7280_haptic_of_mode_str(dev, str);
+ else /* if no property, then use the mode inside chip */
+ haptics->dev_type = DA7280_DEV_MAX;
+
+ if (device_property_read_u32(dev, "dlg,const-op-mode", &val) >= 0)
+ if (val == DA7280_FF_PERIODIC_PWM)
+ haptics->const_op_mode = DA7280_PWM_MODE;
+ else
+ haptics->const_op_mode = DA7280_DRO_MODE;
+ else
+ haptics->const_op_mode = DA7280_DRO_MODE;
+
+ if (device_property_read_u32(dev, "dlg,periodic-op-mode", &val) >= 0)
+ if (val == DA7280_FF_PERIODIC_ETWM)
+ haptics->periodic_op_mode = DA7280_ETWM_MODE;
+ else
+ haptics->periodic_op_mode = DA7280_RTWM_MODE;
+ else
+ haptics->periodic_op_mode = DA7280_RTWM_MODE;
+
+ if (device_property_read_u32(dev, "dlg,nom-microvolt", &val) >= 0)
+ if (val < DA7280_VOLTAGE_RATE_MAX)
+ haptics->nommax =
+ da7280_haptic_of_volt_rating_set(val);
+ else
+ haptics->nommax = DA7280_SKIP_INIT;
+ else /* if no property, then use the value inside chip */
+ haptics->nommax = DA7280_SKIP_INIT;
+
+ if (device_property_read_u32(dev, "dlg,abs-max-microvolt",
+ &val) >= 0)
+ if (val < DA7280_VOLTAGE_RATE_MAX)
+ haptics->absmax =
+ da7280_haptic_of_volt_rating_set(val);
+ else
+ haptics->absmax = DA7280_SKIP_INIT;
+ else
+ haptics->absmax = DA7280_SKIP_INIT;
+
+ if (device_property_read_u32(dev, "dlg,imax-microamp", &val) >= 0)
+ if (val < DA7280_IMAX_LIMIT)
+ haptics->imax = (val - 28600)
+ / DA7280_IMAX_STEP + 1;
+ else
+ haptics->imax = DA7280_IMAX_DEFAULT;
+ else
+ haptics->imax = DA7280_IMAX_DEFAULT;
+
+ if (device_property_read_u32(dev, "dlg,impd-micro-ohms", &val) >= 0)
+ if (val <= DA7280_IMPD_MAX)
+ haptics->impd = val;
+ else
+ haptics->impd = DA7280_IMPD_DEFAULT;
+ else
+ haptics->impd = DA7280_IMPD_DEFAULT;
+
+ if (device_property_read_u32(dev, "dlg,resonant-freq-hz",
+ &val) >= 0) {
+ if (val < DA7280_MAX_RESONAT_FREQ_HZ &&
+ val > DA7280_MIN_RESONAT_FREQ_HZ) {
+ haptics->resonant_freq_h =
+ ((1000000000 / (val * 1333)) >> 7) & 0xFF;
+ haptics->resonant_freq_l =
+ (1000000000 / (val * 1333)) & 0x7F;
+ } else {
+ haptics->resonant_freq_h =
+ DA7280_RESONT_FREQH_DFT;
+ haptics->resonant_freq_l =
+ DA7280_RESONT_FREQL_DFT;
+ }
+ } else {
+ haptics->resonant_freq_h = DA7280_SKIP_INIT;
+ haptics->resonant_freq_l = DA7280_SKIP_INIT;
+ }
+
+ if (device_property_read_u32(dev, "dlg,ps-seq-id", &val) >= 0)
+ if (val <= DA7280_SEQ_ID_MAX)
+ haptics->ps_seq_id = val;
+ else
+ haptics->ps_seq_id = 0;
+ else /* if no property, set to zero as a default do nothing */
+ haptics->ps_seq_id = 0;
+
+ if (device_property_read_u32(dev, "dlg,ps-seq-loop", &val) >= 0)
+ if (val <= DA7280_SEQ_LOOP_MAX)
+ haptics->ps_seq_loop = val;
+ else
+ haptics->ps_seq_loop = 0;
+ else /* if no property, then do nothing */
+ haptics->ps_seq_loop = 0;
+
+ /* GPI0~2 Control */
+ for (i = 0; i < 3; i++) {
+ gpi_str1[7] = '0' + i;
+ if (device_property_read_u32 (dev, gpi_str1, &val) >= 0)
+ if (val <= DA7280_SEQ_ID_MAX)
+ haptics->gpi_ctl[i].seq_id = val;
+ else
+ haptics->gpi_ctl[i].seq_id =
+ DA7280_GPI1_SEQ_ID_DEFT + i;
+ else /* if no property, then do nothing */
+ haptics->gpi_ctl[i].seq_id =
+ DA7280_GPI1_SEQ_ID_DEFT + i;
+
+ gpi_str2[7] = '0' + i;
+ if (!device_property_read_string(dev, gpi_str2, &str))
+ haptics->gpi_ctl[i].mode =
+ da7280_haptic_of_gpi_mode_str(dev, str);
+ else
+ haptics->gpi_ctl[i].mode = 0;
+
+ gpi_str3[7] = '0' + i;
+ if (!device_property_read_string(dev, gpi_str3, &str))
+ haptics->gpi_ctl[i].polarity =
+ da7280_haptic_of_gpi_pol_str(dev, str);
+ else
+ haptics->gpi_ctl[i].polarity = 0;
+ }
+
+ haptics->bemf_sense_en =
+ device_property_read_bool(dev, "dlg,bemf-sens-enable");
+ haptics->freq_track_en =
+ device_property_read_bool(dev, "dlg,freq-track-enable");
+ haptics->acc_en =
+ device_property_read_bool(dev, "dlg,acc-enable");
+ haptics->rapid_stop_en =
+ device_property_read_bool(dev, "dlg,rapid-stop-enable");
+ haptics->amp_pid_en =
+ device_property_read_bool(dev, "dlg,amp-pid-enable");
+
+ if (device_property_read_u32_array(dev, "dlg,mem-array",
+ &mem[0],
+ DA7280_SNP_MEM_SIZE) >= 0) {
+ haptics->mem_update = true;
+ memset(haptics->snp_mem, 0, DA7280_SNP_MEM_SIZE);
+ for (i = 0; i < DA7280_SNP_MEM_SIZE; i++) {
+ if (mem[i] <= 0xff) {
+ haptics->snp_mem[i] = (u8)mem[i];
+ } else {
+ dev_err(haptics->dev,
+ "Invalid data in mem-array\n");
+ haptics->mem_update = false;
+ break;
+ }
+ }
+ } else {
+ haptics->mem_update = false;
+ }
+}
+
+static irqreturn_t da7280_irq_handler(int irq, void *data)
+{
+ struct da7280_haptic *haptics = data;
+ struct device *dev = haptics->dev;
+ u8 events[IRQ_NUM];
+ int error;
+
+ /* Check what events have happened */
+ error = regmap_bulk_read(haptics->regmap,
+ DA7280_IRQ_EVENT1,
+ events, IRQ_NUM);
+ if (error)
+ goto error_i2c;
+
+ /* Clear events */
+ error = regmap_write(haptics->regmap,
+ DA7280_IRQ_EVENT1, events[0]);
+ if (error)
+ goto error_i2c;
+
+ if (events[0] & DA7280_E_SEQ_FAULT_MASK) {
+ /* Stop first if Haptic is working
+ * Otherwise, the fault may happen continually
+ * even though the bit is cleared.
+ */
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_CTL1,
+ DA7280_OPERATION_MODE_MASK, 0);
+ if (error)
+ goto error_i2c;
+ }
+
+ if (events[0] & DA7280_E_SEQ_DONE_MASK)
+ haptics->enabled = false;
+
+ if (events[0] & DA7280_E_WARNING_MASK) {
+ if (events[1] & DA7280_E_LIM_DRIVE_MASK ||
+ events[1] & DA7280_E_LIM_DRIVE_ACC_MASK)
+ dev_warn(dev, "Please reduce the driver level\n");
+ if (events[1] & DA7280_E_LIM_DRIVE_ACC_MASK)
+ dev_warn(dev, "Please Check the mem data format\n");
+ }
+
+ if (events[0] & DA7280_E_SEQ_FAULT_MASK) {
+ if (events[2] & DA7280_E_SEQ_ID_FAULT_MASK)
+ dev_info(dev, "Please reload PS_SEQ_ID & mem data\n");
+ if (events[2] & DA7280_E_MEM_FAULT_MASK)
+ dev_info(dev, "Please reload the mem data\n");
+ if (events[2] & DA7280_E_PWM_FAULT_MASK)
+ dev_info(dev, "Please restart PWM interface\n");
+ }
+
+ return IRQ_HANDLED;
+
+error_i2c:
+ dev_err(dev, "da7280 i2c error : %d\n", error);
+ return IRQ_NONE;
+}
+
+static int da7280_init(struct da7280_haptic *haptics)
+{
+ int error, i;
+ unsigned int val = 0;
+ u32 v2i_factor;
+ u8 mask = 0;
+
+ /* If device type is DA7280_DEV_MAX,
+ * then just use default value inside chip.
+ */
+ if (haptics->dev_type == DA7280_DEV_MAX) {
+ error = regmap_read(haptics->regmap, DA7280_TOP_CFG1, &val);
+ if (error)
+ goto error_i2c;
+ if (val & DA7280_ACTUATOR_TYPE_MASK)
+ haptics->dev_type = DA7280_ERM_COIN;
+ else
+ haptics->dev_type = DA7280_LRA;
+ }
+
+ /* Apply user settings */
+ if (haptics->dev_type == DA7280_LRA) {
+ if (haptics->resonant_freq_l != DA7280_SKIP_INIT) {
+ error = regmap_write(haptics->regmap,
+ DA7280_FRQ_LRA_PER_H,
+ haptics->resonant_freq_h);
+ if (error)
+ goto error_i2c;
+ error = regmap_write(haptics->regmap,
+ DA7280_FRQ_LRA_PER_L,
+ haptics->resonant_freq_l);
+ if (error)
+ goto error_i2c;
+ }
+ } else if (haptics->dev_type == DA7280_ERM_COIN) {
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_INT_CFG1,
+ DA7280_BEMF_FAULT_LIM_MASK, 0);
+ if (error)
+ goto error_i2c;
+
+ mask = DA7280_TST_CALIB_IMPEDANCE_DIS_MASK |
+ DA7280_V2I_FACTOR_FREEZE_MASK;
+ val = DA7280_TST_CALIB_IMPEDANCE_DIS_MASK |
+ DA7280_V2I_FACTOR_FREEZE_MASK;
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_CFG4,
+ mask, val);
+ if (error)
+ goto error_i2c;
+
+ haptics->acc_en = false;
+ haptics->rapid_stop_en = false;
+ haptics->amp_pid_en = false;
+ }
+
+ mask = DA7280_ACTUATOR_TYPE_MASK |
+ DA7280_BEMF_SENSE_EN_MASK |
+ DA7280_FREQ_TRACK_EN_MASK |
+ DA7280_ACCELERATION_EN_MASK |
+ DA7280_RAPID_STOP_EN_MASK |
+ DA7280_AMP_PID_EN_MASK;
+
+ val = (haptics->dev_type ? 1 : 0)
+ << DA7280_ACTUATOR_TYPE_SHIFT |
+ (haptics->bemf_sense_en ? 1 : 0)
+ << DA7280_BEMF_SENSE_EN_SHIFT |
+ (haptics->freq_track_en ? 1 : 0)
+ << DA7280_FREQ_TRACK_EN_SHIFT |
+ (haptics->acc_en ? 1 : 0)
+ << DA7280_ACCELERATION_EN_SHIFT |
+ (haptics->rapid_stop_en ? 1 : 0)
+ << DA7280_RAPID_STOP_EN_SHIFT |
+ (haptics->amp_pid_en ? 1 : 0)
+ << DA7280_AMP_PID_EN_SHIFT;
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_CFG1, mask, val);
+ if (error)
+ goto error_i2c;
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_CFG5,
+ DA7280_V2I_FACTOR_OFFSET_EN_MASK,
+ haptics->acc_en ?
+ DA7280_V2I_FACTOR_OFFSET_EN_MASK : 0);
+ if (error)
+ goto error_i2c;
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_CFG2,
+ DA7280_MEM_DATA_SIGNED_MASK,
+ haptics->acc_en ?
+ 0 : DA7280_MEM_DATA_SIGNED_MASK);
+ if (error)
+ goto error_i2c;
+
+ if (haptics->nommax != DA7280_SKIP_INIT) {
+ error = regmap_write(haptics->regmap,
+ DA7280_ACTUATOR1,
+ haptics->nommax);
+ if (error)
+ goto error_i2c;
+ }
+
+ if (haptics->absmax != DA7280_SKIP_INIT) {
+ error = regmap_write(haptics->regmap, DA7280_ACTUATOR2,
+ haptics->absmax);
+ if (error)
+ goto error_i2c;
+ }
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_ACTUATOR3,
+ DA7280_IMAX_MASK,
+ haptics->imax);
+ if (error)
+ goto error_i2c;
+
+ v2i_factor =
+ haptics->impd * (haptics->imax + 4) / 1610400;
+ error = regmap_write(haptics->regmap,
+ DA7280_CALIB_V2I_L,
+ v2i_factor & 0xff);
+ if (error)
+ goto error_i2c;
+ error = regmap_write(haptics->regmap,
+ DA7280_CALIB_V2I_H,
+ v2i_factor >> 8);
+ if (error)
+ goto error_i2c;
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_CTL1,
+ DA7280_STANDBY_EN_MASK,
+ DA7280_STANDBY_EN_MASK);
+ if (error)
+ goto error_i2c;
+
+ if (haptics->mem_update) {
+ error = da7280_haptic_mem_update(haptics);
+ if (error)
+ goto error_i2c;
+ }
+
+ /* Set PS_SEQ_ID and PS_SEQ_LOOP */
+ val = haptics->ps_seq_id << DA7280_PS_SEQ_ID_SHIFT |
+ haptics->ps_seq_loop << DA7280_PS_SEQ_LOOP_SHIFT;
+ error = regmap_write(haptics->regmap,
+ DA7280_SEQ_CTL2, val);
+ if (error)
+ goto error_i2c;
+
+ /* GPI(N) CTL */
+ for (i = 0; i < 3; i++) {
+ val = haptics->gpi_ctl[i].seq_id
+ << DA7280_GPI0_SEQUENCE_ID_SHIFT |
+ haptics->gpi_ctl[i].mode
+ << DA7280_GPI0_MODE_SHIFT |
+ haptics->gpi_ctl[i].polarity
+ << DA7280_GPI0_POLARITY_SHIFT;
+ error = regmap_write(haptics->regmap,
+ DA7280_GPI_0_CTL + i, val);
+ if (error)
+ goto error_i2c;
+ }
+
+ /* Mask ADC_SAT_M bit as default */
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_IRQ_MASK2,
+ DA7280_ADC_SAT_M_MASK,
+ DA7280_ADC_SAT_M_MASK);
+ if (error)
+ goto error_i2c;
+
+ /* Clear Interrupts */
+ error = regmap_write(haptics->regmap, DA7280_IRQ_EVENT1, 0xff);
+ if (error)
+ goto error_i2c;
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_IRQ_MASK1,
+ DA7280_SEQ_FAULT_M_MASK
+ | DA7280_SEQ_DONE_M_MASK, 0);
+ if (error)
+ goto error_i2c;
+
+ haptics->enabled = false;
+ return 0;
+
+error_i2c:
+ dev_err(haptics->dev, "haptic init - I2C error : %d\n", error);
+ return error;
+}
+
+/* Valid format for ps_seq_id
+ * echo X > ps_seq_id
+ * ex) echo 2 > /sys/class/..../ps_seq_id
+ * 0 <= X <= 15.
+ */
+static ssize_t ps_seq_id_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ struct da7280_haptic *haptics = dev_get_drvdata(dev);
+ long val = 0xff;
+ int error;
+
+ if (haptics->enabled)
+ return -EBUSY;
+
+ if (kstrtol(&buf[0], 0, &val) < 0)
+ goto err;
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_SEQ_CTL2,
+ DA7280_PS_SEQ_ID_MASK,
+ (val & 0xf) >> DA7280_PS_SEQ_ID_SHIFT);
+ if (error) {
+ dev_err(haptics->dev,
+ "failed to update register : %d\n", error);
+ return error;
+ }
+
+ haptics->ps_seq_id = val & 0xf;
+
+ return count;
+
+err:
+ dev_err(dev, "Invalid input\n");
+ return count;
+}
+
+static ssize_t ps_seq_id_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct da7280_haptic *haptics = dev_get_drvdata(dev);
+ int error;
+ unsigned int val;
+
+ error = regmap_read(haptics->regmap, DA7280_SEQ_CTL2, &val);
+ if (error) {
+ dev_err(haptics->dev,
+ "failed to read register : %d\n", error);
+ return error;
+ }
+ val = (val & DA7280_PS_SEQ_ID_MASK)
+ >> DA7280_PS_SEQ_ID_SHIFT;
+
+ return sprintf(buf, "ps_seq_id is %d\n", val);
+}
+
+/* Valid format for ps_seq_loop
+ * echo X > ps_seq_loop
+ * ex) echo 2 > /sys/class/..../ps_seq_loop
+ * 0 <= X <= 15.
+ */
+static ssize_t ps_seq_loop_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ struct da7280_haptic *haptics = dev_get_drvdata(dev);
+ long val = 0xff;
+ int error;
+
+ if (haptics->enabled)
+ return -EBUSY;
+
+ if (kstrtol(&buf[0], 0, &val) < 0)
+ goto err;
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_SEQ_CTL2,
+ DA7280_PS_SEQ_LOOP_MASK,
+ (val & 0xF) << DA7280_PS_SEQ_LOOP_SHIFT);
+ if (error) {
+ dev_err(haptics->dev,
+ "failed to update register : %d\n", error);
+ return error;
+ }
+
+ haptics->ps_seq_loop = (val & 0xF);
+
+ return count;
+err:
+ dev_err(dev, "Invalid input value!\n");
+ return count;
+}
+
+static ssize_t ps_seq_loop_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct da7280_haptic *haptics = dev_get_drvdata(dev);
+ int error;
+ unsigned int val;
+
+ error = regmap_read(haptics->regmap, DA7280_SEQ_CTL2, &val);
+ if (error) {
+ dev_err(haptics->dev,
+ "failed to read register : %d\n", error);
+ return error;
+ }
+ val = (val & DA7280_PS_SEQ_LOOP_MASK)
+ >> DA7280_PS_SEQ_LOOP_SHIFT;
+
+ return sprintf(buf, "ps_seq_loop is %d\n", val);
+}
+
+/* Valid format for GPIx_SEQUENCE_ID
+ * echo X > ./gpi_seq_id0
+ * Range of X: 0 <= X <= 15
+ * ex)
+ * echo 1 > /sys/class/..../gpi_seq_id0
+ * echo 2 > /sys/class/..../gpi_seq_id1
+ * echo 3 > /sys/class/..../gpi_seq_id2
+ */
+static ssize_t gpi_seq_id0_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ struct da7280_haptic *haptics = dev_get_drvdata(dev);
+ long val = 0xff;
+ int error;
+
+ if (haptics->enabled)
+ return -EBUSY;
+
+ if (kstrtol(&buf[0], 0, &val) < 0)
+ goto err;
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_GPI_0_CTL,
+ DA7280_GPI0_SEQUENCE_ID_MASK,
+ (val & 0xf)
+ << DA7280_GPI0_SEQUENCE_ID_SHIFT);
+ if (error) {
+ dev_err(haptics->dev,
+ "failed to update register : %d\n", error);
+ return error;
+ }
+
+ haptics->gpi_ctl[0].seq_id = val & 0xf;
+
+ return count;
+
+err:
+ dev_err(dev, "Invalid input\n");
+ return count;
+}
+
+static ssize_t gpi_seq_id0_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct da7280_haptic *haptics = dev_get_drvdata(dev);
+ int error;
+ unsigned int val;
+
+ error = regmap_read(haptics->regmap, DA7280_GPI_0_CTL, &val);
+ if (error) {
+ dev_err(haptics->dev,
+ "failed to read register : %d\n", error);
+ return error;
+ }
+ val = (val & DA7280_GPI0_SEQUENCE_ID_MASK)
+ >> DA7280_GPI0_SEQUENCE_ID_SHIFT;
+
+ return sprintf(buf, "gpi_seq_id0 is %d\n", val);
+}
+
+static ssize_t gpi_seq_id1_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ struct da7280_haptic *haptics = dev_get_drvdata(dev);
+ long val = 0xff;
+ int error;
+
+ if (haptics->enabled)
+ return -EBUSY;
+
+ if (kstrtol(&buf[0], 0, &val) < 0)
+ goto err;
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_GPI_1_CTL,
+ DA7280_GPI1_SEQUENCE_ID_MASK,
+ (val & 0xf)
+ << DA7280_GPI1_SEQUENCE_ID_SHIFT);
+ if (error) {
+ dev_err(haptics->dev,
+ "failed to update register : %d\n", error);
+ return error;
+ }
+
+ haptics->gpi_ctl[1].seq_id = val & 0xf;
+
+ return count;
+
+err:
+ dev_err(dev, "Invalid input\n");
+ return count;
+}
+
+static ssize_t gpi_seq_id1_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct da7280_haptic *haptics = dev_get_drvdata(dev);
+ int error;
+ unsigned int val;
+
+ error = regmap_read(haptics->regmap, DA7280_GPI_1_CTL, &val);
+ if (error) {
+ dev_err(haptics->dev,
+ "failed to read register : %d\n", error);
+ return error;
+ }
+ val = (val & DA7280_GPI1_SEQUENCE_ID_MASK)
+ >> DA7280_GPI1_SEQUENCE_ID_SHIFT;
+
+ return sprintf(buf, "gpi_seq_id1 is %d\n", val);
+}
+
+static ssize_t gpi_seq_id2_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ struct da7280_haptic *haptics = dev_get_drvdata(dev);
+ long val = 0xff;
+ int error;
+
+ if (haptics->enabled)
+ return -EBUSY;
+
+ if (kstrtol(&buf[0], 0, &val) < 0)
+ goto err;
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_GPI_2_CTL,
+ DA7280_GPI2_SEQUENCE_ID_MASK,
+ (val & 0xf)
+ << DA7280_GPI2_SEQUENCE_ID_SHIFT);
+ if (error) {
+ dev_err(haptics->dev,
+ "failed to update register : %d\n", error);
+ return error;
+ }
+
+ haptics->gpi_ctl[2].seq_id = val & 0xf;
+
+ return count;
+
+err:
+ dev_err(dev, "Invalid input\n");
+ return count;
+}
+
+static ssize_t gpi_seq_id2_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct da7280_haptic *haptics = dev_get_drvdata(dev);
+ int error;
+ unsigned int val;
+
+ error = regmap_read(haptics->regmap, DA7280_GPI_2_CTL, &val);
+ if (error) {
+ dev_err(haptics->dev,
+ "failed to read register : %d\n", error);
+ return error;
+ }
+ val = (val & DA7280_GPI2_SEQUENCE_ID_MASK)
+ >> DA7280_GPI2_SEQUENCE_ID_SHIFT;
+
+ return sprintf(buf, "gpi_seq_id2 is %d\n", val);
+}
+
+#define MAX_PTN_REGS DA7280_SNP_MEM_SIZE
+#define MAX_USER_INPUT_LEN (5 * DA7280_SNP_MEM_SIZE)
+struct parse_data_t {
+ int len;
+ u8 val[MAX_PTN_REGS];
+};
+
+static int da7280_parse_args(struct device *dev,
+ char *cmd, struct parse_data_t *ptn)
+{
+ struct da7280_haptic *haptics = dev_get_drvdata(dev);
+ char *tok; /* used to separate tokens */
+ static const char ct[] = " \t"; /* space or tab delimits the tokens */
+ int tok_count = 0; /* total number of tokens parsed */
+ int i = 0, val;
+
+ ptn->len = 0;
+
+ /* parse the input string */
+ while ((tok = strsep(&cmd, ct)) != NULL) {
+ /* this is a value to be written to the register */
+ if (kstrtouint(tok, 0, &val) < 0) {
+ dev_err(haptics->dev,
+ "failed to read from %s\n", tok);
+ break;
+ }
+
+ if (i < MAX_PTN_REGS) {
+ ptn->val[i] = val;
+ i++;
+ }
+ tok_count++;
+ }
+
+ /* decide whether it is a read or write operation based on the
+ * value of tok_count and count_flag.
+ * tok_count = 0: no inputs, invalid case.
+ * tok_count = 1: write one value.
+ * tok_count > 1: write multiple values/patterns.
+ */
+ switch (tok_count) {
+ case 0:
+ return -EINVAL;
+ case 1:
+ ptn->len = 1;
+ break;
+ default:
+ ptn->len = i;
+ }
+ return 0;
+}
+
+static ssize_t
+patterns_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ struct da7280_haptic *haptics = dev_get_drvdata(dev);
+ struct parse_data_t mem;
+ char cmd[MAX_USER_INPUT_LEN];
+ unsigned int val;
+ int error;
+
+ error = regmap_read(haptics->regmap, DA7280_MEM_CTL1, &val);
+ if (error)
+ return error;
+
+ if (count > MAX_USER_INPUT_LEN)
+ memcpy(cmd, buf, MAX_USER_INPUT_LEN);
+ else
+ memcpy(cmd, buf, count);
+
+ /* chop of '\n' introduced by echo at the end of the input */
+ if (cmd[count - 1] == '\n')
+ cmd[count - 1] = '\0';
+
+ if (da7280_parse_args(dev, cmd, &mem) < 0)
+ return -EINVAL;
+
+ memset(haptics->snp_mem, 0, DA7280_SNP_MEM_SIZE);
+ memcpy(haptics->snp_mem, mem.val, mem.len);
+
+ error = da7280_haptic_mem_update(haptics);
+ if (error)
+ return error;
+
+ return count;
+}
+
+static DEVICE_ATTR_RW(ps_seq_id);
+static DEVICE_ATTR_RW(ps_seq_loop);
+static DEVICE_ATTR_RW(gpi_seq_id0);
+static DEVICE_ATTR_RW(gpi_seq_id1);
+static DEVICE_ATTR_RW(gpi_seq_id2);
+static DEVICE_ATTR_WO(patterns);
+static struct attribute *da7280_sysfs_attr[] = {
+ &dev_attr_ps_seq_id.attr,
+ &dev_attr_ps_seq_loop.attr,
+ &dev_attr_gpi_seq_id0.attr,
+ &dev_attr_gpi_seq_id1.attr,
+ &dev_attr_gpi_seq_id2.attr,
+ &dev_attr_patterns.attr,
+ NULL,
+};
+
+static const struct attribute_group da7280_attr_group = {
+ .attrs = da7280_sysfs_attr,
+};
+
+static int da7280_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct device *dev = &client->dev;
+ struct da7280_haptic *haptics;
+ struct input_dev *input_dev;
+ struct ff_device *ff;
+ unsigned int period2freq;
+ int error;
+
+ haptics = devm_kzalloc(dev, sizeof(*haptics), GFP_KERNEL);
+ if (!haptics)
+ return -ENOMEM;
+ haptics->dev = dev;
+
+ if (!client->irq) {
+ dev_err(dev, "No IRQ configured\n");
+ return -EINVAL;
+ }
+
+ da7280_parse_properties(&client->dev, haptics);
+
+ if (haptics->const_op_mode == DA7280_PWM_MODE) {
+ /* Get pwm and regulatot for haptics device */
+ haptics->pwm_dev = devm_pwm_get(&client->dev, NULL);
+ if (IS_ERR(haptics->pwm_dev)) {
+ dev_err(dev, "failed to get PWM device\n");
+ return PTR_ERR(haptics->pwm_dev);
+ }
+
+ /*
+ * FIXME: pwm_apply_args() should be removed when switching to
+ * the atomic PWM API.
+ */
+ pwm_apply_args(haptics->pwm_dev);
+
+ /* Check PWM Period, it must be in 10k ~ 250kHz */
+ period2freq = 1000000 / pwm_get_period(haptics->pwm_dev);
+ if (period2freq < DA7280_MIN_PWM_FREQ_KHZ ||
+ period2freq > DA7280_MAX_PWM_FREQ_KHZ) {
+ dev_err(dev, "Not supported PWM frequency(%d)\n",
+ period2freq);
+ return -EINVAL;
+ }
+ }
+
+ INIT_DELAYED_WORK(&haptics->work_duration, da7280_haptic_work_duration);
+ INIT_WORK(&haptics->work_playback, da7280_haptic_work_playback);
+ INIT_WORK(&haptics->work_setgain, da7280_haptic_work_setgain);
+
+ haptics->client = client;
+ i2c_set_clientdata(client, haptics);
+
+ haptics->regmap =
+ devm_regmap_init_i2c(client, &da7280_haptic_regmap_config);
+ if (IS_ERR(haptics->regmap)) {
+ error = PTR_ERR(haptics->regmap);
+ dev_err(dev, "Failed to allocate register map : %d\n",
+ error);
+ return error;
+ }
+
+ error = da7280_init(haptics);
+ if (error) {
+ dev_err(dev, "failed to initialize device\n");
+ return error;
+ }
+
+ /* Initialize input device for haptic device */
+ input_dev = devm_input_allocate_device(dev);
+ if (!input_dev) {
+ dev_err(dev, "failed to allocate input device\n");
+ return -ENOMEM;
+ }
+
+ input_dev->name = "da7280-haptic";
+ input_dev->dev.parent = client->dev.parent;
+ input_dev->open = da7280_haptic_open;
+ input_dev->close = da7280_haptic_close;
+ input_set_drvdata(input_dev, haptics);
+ haptics->input_dev = input_dev;
+
+ input_set_capability(haptics->input_dev, EV_FF, FF_PERIODIC);
+ input_set_capability(haptics->input_dev, EV_FF, FF_CUSTOM);
+ input_set_capability(haptics->input_dev, EV_FF, FF_CONSTANT);
+ input_set_capability(haptics->input_dev, EV_FF, FF_GAIN);
+
+ error = input_ff_create(haptics->input_dev, DA7280_FF_EFFECT_COUNT_MAX);
+ if (error) {
+ dev_err(dev, "create FF input device failed(%d)\n",
+ error);
+ return error;
+ }
+
+ ff = input_dev->ff;
+ ff->upload = da7280_haptics_upload_effect;
+ ff->playback = da7280_haptics_playback;
+ ff->set_gain = da7280_haptics_set_gain;
+
+ error = input_register_device(input_dev);
+ if (error) {
+ dev_err(dev, "failed to register input device\n");
+ return error;
+ }
+
+ error = devm_device_add_group(dev, &da7280_attr_group);
+ if (error) {
+ dev_err(dev, "Failed to create sysfs attributes: %d\n",
+ error);
+ return error;
+ }
+
+ error = devm_request_threaded_irq(dev, client->irq, NULL,
+ da7280_irq_handler,
+ IRQF_ONESHOT,
+ "da7280-haptics", haptics);
+ if (error)
+ dev_err(dev, "Failed to request IRQ : %d\n", client->irq);
+
+ return error;
+}
+
+static int __maybe_unused da7280_suspend(struct device *dev)
+{
+ struct da7280_haptic *haptics = dev_get_drvdata(dev);
+ int error = 0;
+
+ mutex_lock(&haptics->input_dev->mutex);
+
+ da7280_haptic_disable(haptics);
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_CTL1,
+ DA7280_STANDBY_EN_MASK, 0);
+ if (error)
+ dev_err(haptics->dev,
+ "I2C error : %d\n", error);
+
+ mutex_unlock(&haptics->input_dev->mutex);
+ return error;
+}
+
+static int __maybe_unused da7280_resume(struct device *dev)
+{
+ struct da7280_haptic *haptics = dev_get_drvdata(dev);
+ int error = 0;
+
+ mutex_lock(&haptics->input_dev->mutex);
+
+ error = regmap_update_bits(haptics->regmap,
+ DA7280_TOP_CTL1,
+ DA7280_STANDBY_EN_MASK,
+ DA7280_STANDBY_EN_MASK);
+ if (error)
+ dev_err(haptics->dev,
+ "i2c error : %d\n", error);
+
+ mutex_unlock(&haptics->input_dev->mutex);
+ return error;
+}
+
+static const struct of_device_id da7280_of_match[] = {
+ { .compatible = "dlg,da7280", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, da7280_of_match);
+
+static const struct i2c_device_id da7280_i2c_id[] = {
+ { "da7280", },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, da7280_i2c_id);
+
+static SIMPLE_DEV_PM_OPS(da7280_pm_ops,
+ da7280_suspend, da7280_resume);
+
+static struct i2c_driver da7280_driver = {
+ .driver = {
+ .name = "da7280",
+ .of_match_table = of_match_ptr(da7280_of_match),
+ .pm = &da7280_pm_ops,
+ },
+ .probe = da7280_probe,
+ .id_table = da7280_i2c_id,
+};
+module_i2c_driver(da7280_driver);
+
+MODULE_DESCRIPTION("DA7280 haptics driver");
+MODULE_AUTHOR("Roy Im <Roy.Im.Opensource@diasemi.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/misc/da7280.h b/drivers/input/misc/da7280.h
new file mode 100644
index 0000000..b234e62
--- /dev/null
+++ b/drivers/input/misc/da7280.h
@@ -0,0 +1,412 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * DA7280 Haptic device driver registers
+ *
+ * Copyright (c) 2019 Dialog Semiconductor.
+ * Author: Roy Im <Roy.Im.Opensource@diasemi.com>
+ */
+
+#ifndef _DA7280_REG_DEFS_H
+#define _DA7280_REG_DEFS_H
+
+#include <linux/bitops.h>
+
+/* Registers */
+
+#define DA7280_CHIP_REV 0x00
+#define DA7280_IRQ_EVENT1 0x03
+#define DA7280_IRQ_EVENT_WARNING_DIAG 0x04
+#define DA7280_IRQ_EVENT_SEQ_DIAG 0x05
+#define DA7280_IRQ_STATUS1 0x06
+#define DA7280_IRQ_MASK1 0x07
+#define DA7280_CIF_I2C1 0x08
+#define DA7280_FRQ_LRA_PER_H 0x0A
+#define DA7280_FRQ_LRA_PER_L 0x0B
+#define DA7280_ACTUATOR1 0x0C
+#define DA7280_ACTUATOR2 0x0D
+#define DA7280_ACTUATOR3 0x0E
+#define DA7280_CALIB_V2I_H 0x0F
+#define DA7280_CALIB_V2I_L 0x10
+#define DA7280_CALIB_IMP_H 0x11
+#define DA7280_CALIB_IMP_L 0x12
+#define DA7280_TOP_CFG1 0x13
+#define DA7280_TOP_CFG2 0x14
+#define DA7280_TOP_CFG3 0x15
+#define DA7280_TOP_CFG4 0x16
+#define DA7280_TOP_INT_CFG1 0x17
+#define DA7280_TOP_INT_CFG6_H 0x1C
+#define DA7280_TOP_INT_CFG6_L 0x1D
+#define DA7280_TOP_INT_CFG7_H 0x1E
+#define DA7280_TOP_INT_CFG7_L 0x1F
+#define DA7280_TOP_INT_CFG8 0x20
+#define DA7280_TOP_CTL1 0x22
+#define DA7280_TOP_CTL2 0x23
+#define DA7280_SEQ_CTL1 0x24
+#define DA7280_SWG_C1 0x25
+#define DA7280_SWG_C2 0x26
+#define DA7280_SWG_C3 0x27
+#define DA7280_SEQ_CTL2 0x28
+#define DA7280_GPI_0_CTL 0x29
+#define DA7280_GPI_1_CTL 0x2A
+#define DA7280_GPI_2_CTL 0x2B
+#define DA7280_MEM_CTL1 0x2C
+#define DA7280_MEM_CTL2 0x2D
+#define DA7280_ADC_DATA_H1 0x2E
+#define DA7280_ADC_DATA_L1 0x2F
+#define DA7280_POLARITY 0x43
+#define DA7280_LRA_AVR_H 0x44
+#define DA7280_LRA_AVR_L 0x45
+#define DA7280_FRQ_LRA_PER_ACT_H 0x46
+#define DA7280_FRQ_LRA_PER_ACT_L 0x47
+#define DA7280_FRQ_PHASE_H 0x48
+#define DA7280_FRQ_PHASE_L 0x49
+#define DA7280_FRQ_CTL 0x4C
+#define DA7280_TRIM3 0x5F
+#define DA7280_TRIM4 0x60
+#define DA7280_TRIM6 0x62
+#define DA7280_TOP_CFG5 0x6E
+#define DA7280_IRQ_EVENT_ACTUATOR_FAULT 0x81
+#define DA7280_IRQ_STATUS2 0x82
+#define DA7280_IRQ_MASK2 0x83
+#define DA7280_SNP_MEM_0 0x84
+#define DA7280_SNP_MEM_99 0xE7
+
+/* DA7280_CHIP_REV (Address 0x00) */
+#define DA7280_CHIP_REV_MAJOR_SHIFT 0
+#define DA7280_CHIP_REV_MAJOR_MASK (15 << 0)
+#define DA7280_CHIP_REV_MINOR_SHIFT 4
+#define DA7280_CHIP_REV_MINOR_MASK (15 << 4)
+
+/* DA7280_IRQ_EVENT1 (Address 0x03) */
+#define DA7280_E_SEQ_CONTINUE_SHIFT 0
+#define DA7280_E_SEQ_CONTINUE_MASK BIT(0)
+#define DA7280_E_UVLO_SHIFT 1
+#define DA7280_E_UVLO_MASK BIT(1)
+#define DA7280_E_SEQ_DONE_SHIFT 2
+#define DA7280_E_SEQ_DONE_MASK BIT(2)
+#define DA7280_E_OVERTEMP_CRIT_SHIFT 3
+#define DA7280_E_OVERTEMP_CRIT_MASK BIT(3)
+#define DA7280_E_SEQ_FAULT_SHIFT 4
+#define DA7280_E_SEQ_FAULT_MASK BIT(4)
+#define DA7280_E_WARNING_SHIFT 5
+#define DA7280_E_WARNING_MASK BIT(5)
+#define DA7280_E_ACTUATOR_FAULT_SHIFT 6
+#define DA7280_E_ACTUATOR_FAULT_MASK BIT(6)
+#define DA7280_E_OC_FAULT_SHIFT 7
+#define DA7280_E_OC_FAULT_MASK BIT(7)
+
+/* DA7280_IRQ_EVENT_WARNING_DIAG (Address 0x04) */
+#define DA7280_E_OVERTEMP_WARN_SHIFT 3
+#define DA7280_E_OVERTEMP_WARN_MASK BIT(3)
+#define DA7280_E_MEM_TYPE_SHIFT 4
+#define DA7280_E_MEM_TYPE_MASK BIT(4)
+#define DA7280_E_LIM_DRIVE_ACC_SHIFT 6
+#define DA7280_E_LIM_DRIVE_ACC_MASK BIT(6)
+#define DA7280_E_LIM_DRIVE_SHIFT 7
+#define DA7280_E_LIM_DRIVE_MASK BIT(7)
+
+/* DA7280_IRQ_EVENT_PAT_DIAG (Address 0x05) */
+#define DA7280_E_PWM_FAULT_SHIFT 5
+#define DA7280_E_PWM_FAULT_MASK BIT(5)
+#define DA7280_E_MEM_FAULT_SHIFT 6
+#define DA7280_E_MEM_FAULT_MASK BIT(6)
+#define DA7280_E_SEQ_ID_FAULT_SHIFT 7
+#define DA7280_E_SEQ_ID_FAULT_MASK BIT(7)
+
+/* DA7280_IRQ_STATUS1 (Address 0x06) */
+#define DA7280_STA_SEQ_CONTINUE_SHIFT 0
+#define DA7280_STA_SEQ_CONTINUE_MASK BIT(0)
+#define DA7280_STA_UVLO_VBAT_OK_SHIFT 1
+#define DA7280_STA_UVLO_VBAT_OK_MASK BIT(1)
+#define DA7280_STA_SEQ_DONE_SHIFT 2
+#define DA7280_STA_SEQ_DONE_MASK BIT(2)
+#define DA7280_STA_OVERTEMP_CRIT_SHIFT 3
+#define DA7280_STA_OVERTEMP_CRIT_MASK BIT(3)
+#define DA7280_STA_SEQ_FAULT_SHIFT 4
+#define DA7280_STA_SEQ_FAULT_MASK BIT(4)
+#define DA7280_STA_WARNING_SHIFT 5
+#define DA7280_STA_WARNING_MASK BIT(5)
+#define DA7280_STA_ACTUATOR_SHIFT 6
+#define DA7280_STA_ACTUATOR_MASK BIT(6)
+#define DA7280_STA_OC_SHIFT 7
+#define DA7280_STA_OC_MASK BIT(7)
+
+/* DA7280_IRQ_MASK1 (Address 0x07) */
+#define DA7280_SEQ_CONTINUE_M_SHIFT 0
+#define DA7280_SEQ_CONTINUE_M_MASK BIT(0)
+#define DA7280_E_UVLO_M_SHIFT 1
+#define DA7280_E_UVLO_M_MASK BIT(1)
+#define DA7280_SEQ_DONE_M_SHIFT 2
+#define DA7280_SEQ_DONE_M_MASK BIT(2)
+#define DA7280_OVERTEMP_CRIT_M_SHIFT 3
+#define DA7280_OVERTEMP_CRIT_M_MASK BIT(3)
+#define DA7280_SEQ_FAULT_M_SHIFT 4
+#define DA7280_SEQ_FAULT_M_MASK BIT(4)
+#define DA7280_WARNING_M_SHIFT 5
+#define DA7280_WARNING_M_MASK BIT(5)
+#define DA7280_ACTUATOR_M_SHIFT 6
+#define DA7280_ACTUATOR_M_MASK BIT(6)
+#define DA7280_OC_M_SHIFT 7
+#define DA7280_OC_M_MASK BIT(7)
+
+/* DA7280_CIF_I2C1 (Address 0x08) */
+#define DA7280_I2C_TO_ENABLE_SHIFT 6
+#define DA7280_I2C_TO_ENABLE_MASK BIT(6)
+#define DA7280_I2C_WR_MODE_SHIFT 7
+#define DA7280_I2C_WR_MODE_MASK BIT(7)
+
+/* DA7280_FRQ_LRA_PER_H (Address 0x0a) */
+#define DA7280_LRA_PER_H_SHIFT 0
+#define DA7280_LRA_PER_H_MASK (255 << 0)
+
+/* DA7280_FRQ_LRA_PER_L (Address 0x0b) */
+#define DA7280_LRA_PER_L_SHIFT 0
+#define DA7280_LRA_PER_L_MASK (127 << 0)
+
+/* DA7280_ACTUATOR1 (Address 0x0c) */
+#define DA7280_ACTUATOR_NOMMAX_SHIFT 0
+#define DA7280_ACTUATOR_NOMMAX_MASK (255 << 0)
+
+/* DA7280_ACTUATOR2 (Address 0x0d) */
+#define DA7280_ACTUATOR_ABSMAX_SHIFT 0
+#define DA7280_ACTUATOR_ABSMAX_MASK (255 << 0)
+
+/* DA7280_ACTUATOR3 (Address 0x0e) */
+#define DA7280_IMAX_SHIFT 0
+#define DA7280_IMAX_MASK (31 << 0)
+
+/* DA7280_CALIB_V2I_H (Address 0x0f) */
+#define DA7280_V2I_FACTOR_H_SHIFT 0
+#define DA7280_V2I_FACTOR_H_MASK (255 << 0)
+
+/* DA7280_CALIB_V2I_L (Address 0x10) */
+#define DA7280_V2I_FACTOR_L_SHIFT 0
+#define DA7280_V2I_FACTOR_L_MASK (255 << 0)
+
+/* DA7280_CALIB_IMP_H (Address 0x11) */
+#define DA7280_IMPEDANCE_H_SHIFT 0
+#define DA7280_IMPEDANCE_H_MASK (255 << 0)
+
+/* DA7280_CALIB_IMP_L (Address 0x12) */
+#define DA7280_IMPEDANCE_L_SHIFT 0
+#define DA7280_IMPEDANCE_L_MASK (3 << 0)
+
+/* DA7280_TOP_CFG1 (Address 0x13) */
+#define DA7280_AMP_PID_EN_SHIFT 0
+#define DA7280_AMP_PID_EN_MASK BIT(0)
+#define DA7280_RAPID_STOP_EN_SHIFT 1
+#define DA7280_RAPID_STOP_EN_MASK BIT(1)
+#define DA7280_ACCELERATION_EN_SHIFT 2
+#define DA7280_ACCELERATION_EN_MASK BIT(2)
+#define DA7280_FREQ_TRACK_EN_SHIFT 3
+#define DA7280_FREQ_TRACK_EN_MASK BIT(3)
+#define DA7280_BEMF_SENSE_EN_SHIFT 4
+#define DA7280_BEMF_SENSE_EN_MASK BIT(4)
+#define DA7280_ACTUATOR_TYPE_SHIFT 5
+#define DA7280_ACTUATOR_TYPE_MASK BIT(5)
+#define DA7280_EMBEDDED_MODE_SHIFT 7
+#define DA7280_EMBEDDED_MODE_MASK BIT(7)
+
+/* DA7280_TOP_CFG2 (Address 0x14) */
+#define DA7280_FULL_BRAKE_THR_SHIFT 0
+#define DA7280_FULL_BRAKE_THR_MASK (15 << 0)
+#define DA7280_MEM_DATA_SIGNED_SHIFT 4
+#define DA7280_MEM_DATA_SIGNED_MASK BIT(4)
+
+/* DA7280_TOP_CFG3 (Address 0x15) */
+#define DA7280_VDD_MARGIN_SHIFT 0
+#define DA7280_VDD_MARGIN_MASK (15 << 0)
+
+/* DA7280_TOP_CFG4 (Address 0x16) */
+#define DA7280_TST_CALIB_IMPEDANCE_DIS_SHIFT 6
+#define DA7280_TST_CALIB_IMPEDANCE_DIS_MASK BIT(6)
+#define DA7280_V2I_FACTOR_FREEZE_SHIFT 7
+#define DA7280_V2I_FACTOR_FREEZE_MASK BIT(7)
+
+/* DA7280_TOP_INT_CFG1 (Address 0x17) */
+#define DA7280_BEMF_FAULT_LIM_SHIFT 0
+#define DA7280_BEMF_FAULT_LIM_MASK (3 << 0)
+#define DA7280_FRQ_LOCKED_LIM_SHIFT 2
+#define DA7280_FRQ_LOCKED_LIM_MASK (63 << 2)
+
+/* DA7280_TOP_INT_CFG6_H (Address 0x1c) */
+#define DA7280_FRQ_PID_KP_H_SHIFT 0
+#define DA7280_FRQ_PID_KP_H_MASK (255 << 0)
+
+/* DA7280_TOP_INT_CFG6_L (Address 0x1d) */
+#define DA7280_FRQ_PID_KP_L_SHIFT 0
+#define DA7280_FRQ_PID_KP_L_MASK (255 << 0)
+
+/* DA7280_TOP_INT_CFG7_H (Address 0x1e) */
+#define DA7280_FRQ_PID_KI_H_SHIFT 0
+#define DA7280_FRQ_PID_KI_H_MASK (255 << 0)
+
+/* DA7280_TOP_INT_CFG7_L (Address 0x1f) */
+#define DA7280_FRQ_PID_KI_L_SHIFT 0
+#define DA7280_FRQ_PID_KI_L_MASK (255 << 0)
+
+/* DA7280_TOP_INT_CFG8 (Address 0x20) */
+#define DA7280_TST_FRQ_TRACK_BEMF_LIM_SHIFT 0
+#define DA7280_TST_FRQ_TRACK_BEMF_LIM_MASK (15 << 0)
+#define DA7280_TST_AMP_RAPID_STOP_LIM_SHIFT 4
+#define DA7280_TST_AMP_RAPID_STOP_LIM_MASK (7 << 4)
+
+/* DA7280_TOP_CTL1 (Address 0x22) */
+#define DA7280_OPERATION_MODE_SHIFT 0
+#define DA7280_OPERATION_MODE_MASK (7 << 0)
+#define DA7280_STANDBY_EN_SHIFT 3
+#define DA7280_STANDBY_EN_MASK BIT(3)
+#define DA7280_SEQ_START_SHIFT 4
+#define DA7280_SEQ_START_MASK BIT(4)
+
+/* DA7280_TOP_CTL2 (Address 0x23) */
+#define DA7280_OVERRIDE_VAL_SHIFT 0
+#define DA7280_OVERRIDE_VAL_MASK (255 << 0)
+
+/* DA7280_SEQ_CTL1 (Address 0x24) */
+#define DA7280_SEQ_CONTINUE_SHIFT 0
+#define DA7280_SEQ_CONTINUE_MASK BIT(0)
+#define DA7280_WAVEGEN_MODE_SHIFT 1
+#define DA7280_WAVEGEN_MODE_MASK BIT(1)
+#define DA7280_FREQ_WAVEFORM_TIMEBASE_SHIFT 2
+#define DA7280_FREQ_WAVEFORM_TIMEBASE_MASK BIT(2)
+
+/* DA7280_SWG_C1 (Address 0x25) */
+#define DA7280_CUSTOM_WAVE_GEN_COEFF1_SHIFT 0
+#define DA7280_CUSTOM_WAVE_GEN_COEFF1_MASK (255 << 0)
+
+/* DA7280_SWG_C2 (Address 0x26) */
+#define DA7280_CUSTOM_WAVE_GEN_COEFF2_SHIFT 0
+#define DA7280_CUSTOM_WAVE_GEN_COEFF2_MASK (255 << 0)
+
+/* DA7280_SWG_C3 (Address 0x27) */
+#define DA7280_CUSTOM_WAVE_GEN_COEFF3_SHIFT 0
+#define DA7280_CUSTOM_WAVE_GEN_COEFF3_MASK (255 << 0)
+
+/* DA7280_SEQ_CTL2 (Address 0x28) */
+#define DA7280_PS_SEQ_ID_SHIFT 0
+#define DA7280_PS_SEQ_ID_MASK (15 << 0)
+#define DA7280_PS_SEQ_LOOP_SHIFT 4
+#define DA7280_PS_SEQ_LOOP_MASK (15 << 4)
+
+/* DA7280_GPIO_0_CTL (Address 0x29) */
+#define DA7280_GPI0_POLARITY_SHIFT 0
+#define DA7280_GPI0_POLARITY_MASK (3 << 0)
+#define DA7280_GPI0_MODE_SHIFT 2
+#define DA7280_GPI0_MODE_MASK BIT(2)
+#define DA7280_GPI0_SEQUENCE_ID_SHIFT 3
+#define DA7280_GPI0_SEQUENCE_ID_MASK (15 << 3)
+
+/* DA7280_GPIO_1_CTL (Address 0x2a) */
+#define DA7280_GPI1_POLARITY_SHIFT 0
+#define DA7280_GPI1_POLARITY_MASK (3 << 0)
+#define DA7280_GPI1_MODE_SHIFT 2
+#define DA7280_GPI1_MODE_MASK BIT(2)
+#define DA7280_GPI1_SEQUENCE_ID_SHIFT 3
+#define DA7280_GPI1_SEQUENCE_ID_MASK (15 << 3)
+
+/* DA7280_GPIO_2_CTL (Address 0x2b) */
+#define DA7280_GPI2_POLARITY_SHIFT 0
+#define DA7280_GPI2_POLARITY_MASK (3 << 0)
+#define DA7280_GPI2_MODE_SHIFT 2
+#define DA7280_GPI2_MODE_MASK BIT(2)
+#define DA7280_GPI2_SEQUENCE_ID_SHIFT 3
+#define DA7280_GPI2_SEQUENCE_ID_MASK (15 << 3)
+
+/* DA7280_MEM_CTL1 (Address 0x2c) */
+#define DA7280_WAV_MEM_BASE_ADDR_SHIFT 0
+#define DA7280_WAV_MEM_BASE_ADDR_MASK (255 << 0)
+
+/* DA7280_MEM_CTL2 (Address 0x2d) */
+#define DA7280_WAV_MEM_LOCK_SHIFT 7
+#define DA7280_WAV_MEM_LOCK_MASK BIT(7)
+
+/* DA7280_ADC_DATA_H1 (Address 0x2e) */
+#define DA7280_ADC_VDD_H_SHIFT 0
+#define DA7280_ADC_VDD_H_MASK (255 << 0)
+
+/* DA7280_ADC_DATA_L1 (Address 0x2f) */
+#define DA7280_ADC_VDD_L_SHIFT 0
+#define DA7280_ADC_VDD_L_MASK (127 << 0)
+
+/* DA7280_POLARITY (Address 0x43) */
+#define DA7280_POLARITY_SHIFT 0
+#define DA7280_POLARITY_MASK BIT(0)
+
+/* DA7280_LRA_AVR_H (Address 0x44) */
+#define DA7280_LRA_PER_AVERAGE_H_SHIFT 0
+#define DA7280_LRA_PER_AVERAGE_H_MASK (255 << 0)
+
+/* DA7280_LRA_AVR_L (Address 0x45) */
+#define DA7280_LRA_PER_AVERAGE_L_SHIFT 0
+#define DA7280_LRA_PER_AVERAGE_L_MASK (127 << 0)
+
+/* DA7280_FRQ_LRA_PER_ACT_H (Address 0x46) */
+#define DA7280_LRA_PER_ACTUAL_H_SHIFT 0
+#define DA7280_LRA_PER_ACTUAL_H_MASK (255 << 0)
+
+/* DA7280_FRQ_LRA_PER_ACT_L (Address 0x47) */
+#define DA7280_LRA_PER_ACTUAL_L_SHIFT 0
+#define DA7280_LRA_PER_ACTUAL_L_MASK (127 << 0)
+
+/* DA7280_FRQ_PHASE_H (Address 0x48) */
+#define DA7280_DELAY_H_SHIFT 0
+#define DA7280_DELAY_H_MASK (255 << 0)
+
+/* DA7280_FRQ_PHASE_L (Address 0x49) */
+#define DA7280_DELAY_SHIFT_L_SHIFT 0
+#define DA7280_DELAY_SHIFT_L_MASK (7 << 0)
+#define DA7280_DELAY_FREEZE_SHIFT 7
+#define DA7280_DELAY_FREEZE_MASK BIT(7)
+
+/* DA7280_FRQ_CTL (Address 0x4c) */
+#define DA7280_FREQ_TRACKING_FORCE_ON_SHIFT 0
+#define DA7280_FREQ_TRACKING_FORCE_ON_MASK BIT(0)
+#define DA7280_FREQ_TRACKING_AUTO_ADJ_SHIFT 1
+#define DA7280_FREQ_TRACKING_AUTO_ADJ_MASK BIT(1)
+
+/* DA7280_TRIM3 (Address 0x5f) */
+#define DA7280_REF_UVLO_THRES_SHIFT 3
+#define DA7280_REF_UVLO_THRES_MASK (3 << 3)
+#define DA7280_LOOP_FILT_LOW_BW_SHIFT 5
+#define DA7280_LOOP_FILT_LOW_BW_MASK BIT(5)
+#define DA7280_LOOP_IDAC_DOUBLE_RANGE_SHIFT 6
+#define DA7280_LOOP_IDAC_DOUBLE_RANGE_MASK BIT(6)
+
+/* DA7280_TRIM4 (Address 0x60) */
+#define DA7280_LOOP_FILT_RES_TRIM_SHIFT 0
+#define DA7280_LOOP_FILT_RES_TRIM_MASK (3 << 0)
+#define DA7280_LOOP_FILT_CAP_TRIM_SHIFT 2
+#define DA7280_LOOP_FILT_CAP_TRIM_MASK (3 << 2)
+
+/* DA7280_TRIM6 (Address 0x62) */
+#define DA7280_HBRIDGE_ERC_HS_TRIM_SHIFT 0
+#define DA7280_HBRIDGE_ERC_HS_TRIM_MASK (3 << 0)
+#define DA7280_HBRIDGE_ERC_LS_TRIM_SHIFT 2
+#define DA7280_HBRIDGE_ERC_LS_TRIM_MASK (3 << 2)
+
+/* DA7280_TOP_CFG5 (Address 0x6e) */
+#define DA7280_V2I_FACTOR_OFFSET_EN_SHIFT 0
+#define DA7280_V2I_FACTOR_OFFSET_EN_MASK BIT(0)
+#define DA7280_FRQ_PAUSE_ON_POLARITY_CHANGE_SHIFT 1
+#define DA7280_FRQ_PAUSE_ON_POLARITY_CHANGE_MASK BIT(1)
+#define DA7280_DELAY_BYPASS_SHIFT 2
+#define DA7280_DELAY_BYPASS_MASK BIT(2)
+
+/* DA7280_IRQ_EVENT_ACTUATOR_FAULT (Address 0x81) */
+#define DA7280_ADC_SAT_FAULT_SHIFT 2
+#define DA7280_ADC_SAT_FAULT_MASK BIT(2)
+
+/* DA7280_IRQ_STATUS2 (Address 0x82) */
+#define DA7280_STA_ADC_SAT_SHIFT 7
+#define DA7280_STA_ADC_SAT_MASK BIT(7)
+
+/* DA7280_IRQ_MASK2 (Address 0x83) */
+#define DA7280_ADC_SAT_M_SHIFT 7
+#define DA7280_ADC_SAT_M_MASK BIT(7)
+
+/* DA7280_SNP_MEM_XX (Address 0x84 ~ 0xe7) */
+#define DA7280_SNP_MEM_SHIFT 0
+#define DA7280_SNP_MEM_MASK (255 << 0)
+
+#endif
--
end-of-patch for RESEND PATCH V8
^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [RESEND PATCH V8 3/3] Input: new da7280 haptic driver
2020-02-11 1:13 ` Roy Im
(?)
@ 2020-02-11 14:26 ` Uwe Kleine-König
2020-02-14 1:35 ` Roy Im
-1 siblings, 1 reply; 8+ messages in thread
From: Uwe Kleine-König @ 2020-02-11 14:26 UTC (permalink / raw)
To: Roy Im
Cc: Bartosz Golaszewski, Brian Masney, Dmitry Torokhov, Greg KH,
Lee Jones, Luca Weiss, Maximilian Luz, Pascal PAILLET-LME,
Rob Herring, Samuel Ortiz, Thierry Reding, Thomas Gleixner,
Support Opensource, linux-input, linux-kernel, linux-pwm
On Tue, Feb 11, 2020 at 10:13:24AM +0900, Roy Im wrote:
> diff --git a/drivers/input/misc/da7280.c b/drivers/input/misc/da7280.c
> new file mode 100644
> index 0000000..4d1d1fc
> --- /dev/null
> +++ b/drivers/input/misc/da7280.c
> @@ -0,0 +1,1688 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * DA7280 Haptic device driver
> + *
> + * Copyright (c) 2019 Dialog Semiconductor.
> + * Author: Roy Im <Roy.Im.Opensource@diasemi.com>
> + */
> +
> +#include <linux/err.h>
> +#include <linux/i2c.h>
> +#include <linux/input.h>
> +#include <linux/interrupt.h>
> +#include <linux/module.h>
> +#include <linux/pwm.h>
> +#include <linux/regmap.h>
> +#include <linux/workqueue.h>
> +#include <linux/uaccess.h>
> +#include "da7280.h"
Don't introduce a header file that is only used once. Better put the
definitions into the c file then.
> [...]
> +static int da7280_haptic_set_pwm(struct da7280_haptic *haptics)
> +{
> + struct pwm_args pargs;
> + u64 period_mag_multi;
> + unsigned int pwm_duty;
> + int error;
> +
> + pwm_get_args(haptics->pwm_dev, &pargs);
> + period_mag_multi =
> + (u64)(pargs.period * haptics->gain);
This cast does not do anything, does it?
> + if (haptics->acc_en)
> + pwm_duty =
> + (unsigned int)(period_mag_multi >> 16);
> + else
> + pwm_duty =
> + (unsigned int)((period_mag_multi >> 16)
> + + pargs.period) / 2;
> +
> + error = pwm_config(haptics->pwm_dev,
> + pwm_duty, pargs.period);
> + if (error) {
> + dev_err(haptics->dev,
> + "failed to configure pwm : %d\n", error);
> + return error;
> + }
> +
> + error = pwm_enable(haptics->pwm_dev);
> + if (error) {
> + pwm_disable(haptics->pwm_dev);
> + dev_err(haptics->dev,
> + "failed to enable haptics pwm device : %d\n", error);
> + }
You should not use the legacy pwm API. Please stick to
pwm_apply_state().
Also consider using %pE for more expressive error messages.
Best regards
Uwe
--
Pengutronix e.K. | Uwe Kleine-König |
Industrial Linux Solutions | https://www.pengutronix.de/ |
^ permalink raw reply [flat|nested] 8+ messages in thread
* RE: [RESEND PATCH V8 3/3] Input: new da7280 haptic driver
2020-02-11 14:26 ` Uwe Kleine-König
@ 2020-02-14 1:35 ` Roy Im
0 siblings, 0 replies; 8+ messages in thread
From: Roy Im @ 2020-02-14 1:35 UTC (permalink / raw)
To: Uwe Kleine-König, Roy Im
Cc: Bartosz Golaszewski, Brian Masney, Dmitry Torokhov, Greg KH,
Lee Jones, Luca Weiss, Maximilian Luz, Pascal PAILLET-LME,
Rob Herring, Samuel Ortiz, Thierry Reding, Thomas Gleixner,
Support Opensource, linux-input, linux-kernel, linux-pwm
On Tuesday, February 11, 2020 11:26 PM, Uwe Kleine-König wrote
> On Tue, Feb 11, 2020 at 10:13:24AM +0900, Roy Im wrote:
> > diff --git a/drivers/input/misc/da7280.c b/drivers/input/misc/da7280.c
> > new file mode 100644 index 0000000..4d1d1fc
> > --- /dev/null
> > +++ b/drivers/input/misc/da7280.c
> > @@ -0,0 +1,1688 @@
> > +// SPDX-License-Identifier: GPL-2.0+
> > +/*
> > + * DA7280 Haptic device driver
> > + *
> > + * Copyright (c) 2019 Dialog Semiconductor.
> > + * Author: Roy Im <Roy.Im.Opensource@diasemi.com> */
> > +
> > +#include <linux/err.h>
> > +#include <linux/i2c.h>
> > +#include <linux/input.h>
> > +#include <linux/interrupt.h>
> > +#include <linux/module.h>
> > +#include <linux/pwm.h>
> > +#include <linux/regmap.h>
> > +#include <linux/workqueue.h>
> > +#include <linux/uaccess.h>
> > +#include "da7280.h"
>
> Don't introduce a header file that is only used once. Better put the definitions into the c file then.
I will put the definitions into the c file.
>
> > [...]
> > +static int da7280_haptic_set_pwm(struct da7280_haptic *haptics) {
> > + struct pwm_args pargs;
> > + u64 period_mag_multi;
> > + unsigned int pwm_duty;
> > + int error;
> > +
> > + pwm_get_args(haptics->pwm_dev, &pargs);
> > + period_mag_multi =
> > + (u64)(pargs.period * haptics->gain);
>
> This cast does not do anything, does it?
I will remove this.
>
> > + if (haptics->acc_en)
> > + pwm_duty =
> > + (unsigned int)(period_mag_multi >> 16);
> > + else
> > + pwm_duty =
> > + (unsigned int)((period_mag_multi >> 16)
> > + + pargs.period) / 2;
> > +
> > + error = pwm_config(haptics->pwm_dev,
> > + pwm_duty, pargs.period);
> > + if (error) {
> > + dev_err(haptics->dev,
> > + "failed to configure pwm : %d\n", error);
> > + return error;
> > + }
> > +
> > + error = pwm_enable(haptics->pwm_dev);
> > + if (error) {
> > + pwm_disable(haptics->pwm_dev);
> > + dev_err(haptics->dev,
> > + "failed to enable haptics pwm device : %d\n", error);
> > + }
>
> You should not use the legacy pwm API. Please stick to pwm_apply_state().
>
> Also consider using %pE for more expressive error messages.
I will replace the legacy pwm API and stick to pwm_apply_state() and consider using the %pE.
>
> Best regards
> Uwe
>
> --
> Pengutronix e.K. | Uwe Kleine-König |
> Industrial Linux Solutions | https://www.pengutronix.de/ |
Hello Uwe,
Thanks for your comments.
I will try to update as you advise.
Best regards,
Roy
^ permalink raw reply [flat|nested] 8+ messages in thread
* [RESEND PATCH V8 0/3] da7280: haptic driver submission
@ 2019-12-20 8:26 Roy Im
0 siblings, 0 replies; 8+ messages in thread
From: Roy Im @ 2019-12-20 8:26 UTC (permalink / raw)
To: David S. Miller, Uwe Kleine-Koenig, Dmitry Torokhov,
Greg Kroah-Hartman, Lee Jones, Mark Rutland,
Mauro Carvalho Chehab, Maximilian Luz, Rob Herring, Rob Herring,
Thierry Reding
Cc: Support Opensource, devicetree, linux-input, linux-kernel
This patch adds support for the Dialog DA7280 Haptic driver IC.
In this patch set the following is provided:
[PATCH V8 1/3] MAINTAINERS file update for DA7280
[PATCH V8 2/3] DA7280 DT Binding
[PATCH V8 3/3] DA7280 Driver
This patch applies against linux-next and v5.4
Thank you,
Roy Im, Dialog Semiconductor Ltd.
Roy Im (3):
MAINTAINERS: da7280 updates to the Dialog Semiconductor search terms
dt-bindings: input: Add document bindings for DA7280
Input: new da7280 haptic driver
.../devicetree/bindings/input/dlg,da7280.txt | 109 ++
MAINTAINERS | 2 +
drivers/input/misc/Kconfig | 13 +
drivers/input/misc/Makefile | 1 +
drivers/input/misc/da7280.c | 1683 ++++++++++++++++++++
drivers/input/misc/da7280.h | 412 +++++
6 files changed, 2220 insertions(+)
create mode 100644 Documentation/devicetree/bindings/input/dlg,da7280.txt
create mode 100644 drivers/input/misc/da7280.c
create mode 100644 drivers/input/misc/da7280.h
--
end-of-patch for RESEND PATCH V8
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2020-02-14 1:36 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-02-11 1:13 [RESEND PATCH V8 0/3] da7280: haptic driver submission Roy Im
2020-02-11 1:13 ` [RESEND PATCH V8 1/3] MAINTAINERS: da7280 updates to the Dialog Semiconductor search terms Roy Im
2020-02-11 1:13 ` [RESEND PATCH V8 2/3] dt-bindings: input: Add document bindings for DA7280 Roy Im
2020-02-11 1:13 ` [RESEND PATCH V8 3/3] Input: new da7280 haptic driver Roy Im
2020-02-11 1:13 ` Roy Im
2020-02-11 14:26 ` Uwe Kleine-König
2020-02-14 1:35 ` Roy Im
-- strict thread matches above, loose matches on Subject: below --
2019-12-20 8:26 [RESEND PATCH V8 0/3] da7280: haptic driver submission Roy Im
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