[PATCH 4/4] HID: remove ThingM blink(1) driver

* [PATCH 4/4] HID: remove ThingM blink(1) driver
@ 2016-06-21 19:50 Heiner Kallweit
  2016-06-22 13:25 ` Jiri Kosina
  0 siblings, 1 reply; 6+ messages in thread
From: Heiner Kallweit @ 2016-06-21 19:50 UTC (permalink / raw)
  To: Benjamin Tissoires; +Cc: Jiri Kosina, linux-input

Now that support for ThingM blink(1) was merged into the hid-led driver
the dedicated driver for this device can be removed.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
 drivers/hid/Kconfig      |  10 --
 drivers/hid/Makefile     |   1 -
 drivers/hid/hid-thingm.c | 259 -----------------------------------------------
 3 files changed, 270 deletions(-)
 delete mode 100644 drivers/hid/hid-thingm.c

diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index ab22090..6b08a3b 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -828,16 +828,6 @@ config HID_TOPSEED
 	Say Y if you have a TopSeed Cyberlink or BTC Emprex or Conceptronic
 	CLLRCMCE remote control.
 
-config HID_THINGM
-	tristate "ThingM blink(1) USB RGB LED"
-	depends on HID
-	depends on LEDS_CLASS
-	---help---
-	Support for the ThingM blink(1) USB RGB LED. This driver registers a
-	Linux LED class instance, plus additional sysfs attributes to control
-	RGB colors, fade time and playing. The device is exposed through hidraw
-	to access other functions.
-
 config HID_THRUSTMASTER
 	tristate "ThrustMaster devices support"
 	depends on HID
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index 85580ec..fc4b2aa 100644
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -91,7 +91,6 @@ obj-$(CONFIG_HID_SPEEDLINK)	+= hid-speedlink.o
 obj-$(CONFIG_HID_STEELSERIES)	+= hid-steelseries.o
 obj-$(CONFIG_HID_SUNPLUS)	+= hid-sunplus.o
 obj-$(CONFIG_HID_GREENASIA)	+= hid-gaff.o
-obj-$(CONFIG_HID_THINGM)	+= hid-thingm.o
 obj-$(CONFIG_HID_THRUSTMASTER)	+= hid-tmff.o
 obj-$(CONFIG_HID_TIVO)		+= hid-tivo.o
 obj-$(CONFIG_HID_TOPSEED)	+= hid-topseed.o
diff --git a/drivers/hid/hid-thingm.c b/drivers/hid/hid-thingm.c
deleted file mode 100644
index 9b4fec4..0000000
--- a/drivers/hid/hid-thingm.c
+++ /dev/null
@@ -1,259 +0,0 @@
-/*
- * ThingM blink(1) USB RGB LED driver
- *
- * Copyright 2013-2014 Savoir-faire Linux Inc.
- *	Vivien Didelot <vivien.didelot@savoirfairelinux.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation, version 2.
- */
-
-#include <linux/hid.h>
-#include <linux/hidraw.h>
-#include <linux/leds.h>
-#include <linux/module.h>
-#include <linux/mutex.h>
-
-#include "hid-ids.h"
-
-#define REPORT_ID	1
-#define REPORT_SIZE	9
-
-/* Firmware major number of supported devices */
-#define THINGM_MAJOR_MK1	'1'
-#define THINGM_MAJOR_MK2	'2'
-
-struct thingm_fwinfo {
-	char major;
-	unsigned numrgb;
-	unsigned first;
-};
-
-static const struct thingm_fwinfo thingm_fwinfo[] = {
-	{
-		.major = THINGM_MAJOR_MK1,
-		.numrgb = 1,
-		.first = 0,
-	}, {
-		.major = THINGM_MAJOR_MK2,
-		.numrgb = 2,
-		.first = 1,
-	}
-};
-
-/* A red, green or blue channel, part of an RGB chip */
-struct thingm_led {
-	struct thingm_rgb *rgb;
-	struct led_classdev ldev;
-	char name[32];
-};
-
-/* Basically a WS2812 5050 RGB LED chip */
-struct thingm_rgb {
-	struct thingm_device *tdev;
-	struct thingm_led red;
-	struct thingm_led green;
-	struct thingm_led blue;
-	u8 num;
-};
-
-struct thingm_device {
-	struct hid_device *hdev;
-	struct {
-		char major;
-		char minor;
-	} version;
-	const struct thingm_fwinfo *fwinfo;
-	struct mutex lock;
-	struct thingm_rgb *rgb;
-};
-
-static int thingm_send(struct thingm_device *tdev, u8 buf[REPORT_SIZE])
-{
-	int ret;
-
-	hid_dbg(tdev->hdev, "-> %d %c %7ph\n", buf[0], buf[1], &buf[2]);
-
-	mutex_lock(&tdev->lock);
-
-	ret = hid_hw_raw_request(tdev->hdev, buf[0], buf, REPORT_SIZE,
-			HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
-
-	mutex_unlock(&tdev->lock);
-
-	return ret < 0 ? ret : 0;
-}
-
-static int thingm_recv(struct thingm_device *tdev, u8 buf[REPORT_SIZE])
-{
-	int ret;
-
-	/*
-	 * A read consists of two operations: sending the read command
-	 * and the actual read from the device. Use the mutex to protect
-	 * the full sequence of both operations.
-	 */
-	mutex_lock(&tdev->lock);
-
-	ret = hid_hw_raw_request(tdev->hdev, buf[0], buf, REPORT_SIZE,
-			HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
-	if (ret < 0)
-		goto err;
-
-	ret = hid_hw_raw_request(tdev->hdev, buf[0], buf, REPORT_SIZE,
-			HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
-	if (ret < 0)
-		goto err;
-
-	ret = 0;
-
-	hid_dbg(tdev->hdev, "<- %d %c %7ph\n", buf[0], buf[1], &buf[2]);
-err:
-	mutex_unlock(&tdev->lock);
-	return ret;
-}
-
-static int thingm_version(struct thingm_device *tdev)
-{
-	u8 buf[REPORT_SIZE] = { REPORT_ID, 'v', 0, 0, 0, 0, 0, 0, 0 };
-	int err;
-
-	err = thingm_recv(tdev, buf);
-	if (err)
-		return err;
-
-	tdev->version.major = buf[3];
-	tdev->version.minor = buf[4];
-
-	return 0;
-}
-
-static int thingm_write_color(struct thingm_rgb *rgb)
-{
-	u8 buf[REPORT_SIZE] = { REPORT_ID, 'c', 0, 0, 0, 0, 0, rgb->num, 0 };
-
-	buf[2] = rgb->red.ldev.brightness;
-	buf[3] = rgb->green.ldev.brightness;
-	buf[4] = rgb->blue.ldev.brightness;
-
-	return thingm_send(rgb->tdev, buf);
-}
-
-static int thingm_led_set(struct led_classdev *ldev,
-			  enum led_brightness brightness)
-{
-	struct thingm_led *led = container_of(ldev, struct thingm_led, ldev);
-
-	return thingm_write_color(led->rgb);
-}
-
-static int thingm_init_led(struct thingm_led *led, const char *color_name,
-			   struct thingm_rgb *rgb, int minor)
-{
-	snprintf(led->name, sizeof(led->name), "thingm%d:%s:led%d",
-		 minor, color_name, rgb->num);
-	led->ldev.name = led->name;
-	led->ldev.max_brightness = 255;
-	led->ldev.brightness_set_blocking = thingm_led_set;
-	led->ldev.flags = LED_HW_PLUGGABLE;
-	led->rgb = rgb;
-	return devm_led_classdev_register(&rgb->tdev->hdev->dev, &led->ldev);
-}
-
-static int thingm_init_rgb(struct thingm_rgb *rgb)
-{
-	const int minor = ((struct hidraw *) rgb->tdev->hdev->hidraw)->minor;
-	int err;
-
-	/* Register the red diode */
-	err = thingm_init_led(&rgb->red, "red", rgb, minor);
-	if (err)
-		return err;
-
-	/* Register the green diode */
-	err = thingm_init_led(&rgb->green, "green", rgb, minor);
-	if (err)
-		return err;
-
-	/* Register the blue diode */
-	return thingm_init_led(&rgb->blue, "blue", rgb, minor);
-}
-
-static int thingm_probe(struct hid_device *hdev, const struct hid_device_id *id)
-{
-	struct thingm_device *tdev;
-	int i, err;
-
-	tdev = devm_kzalloc(&hdev->dev, sizeof(struct thingm_device),
-			GFP_KERNEL);
-	if (!tdev)
-		return -ENOMEM;
-
-	tdev->hdev = hdev;
-	hid_set_drvdata(hdev, tdev);
-
-	err = hid_parse(hdev);
-	if (err)
-		return err;
-
-	mutex_init(&tdev->lock);
-
-	err = thingm_version(tdev);
-	if (err)
-		return err;
-
-	hid_dbg(hdev, "firmware version: %c.%c\n",
-			tdev->version.major, tdev->version.minor);
-
-	for (i = 0; i < ARRAY_SIZE(thingm_fwinfo) && !tdev->fwinfo; ++i)
-		if (thingm_fwinfo[i].major == tdev->version.major)
-			tdev->fwinfo = &thingm_fwinfo[i];
-
-	if (!tdev->fwinfo) {
-		hid_err(hdev, "unsupported firmware %c\n", tdev->version.major);
-		return -ENODEV;
-	}
-
-	tdev->rgb = devm_kzalloc(&hdev->dev,
-			sizeof(struct thingm_rgb) * tdev->fwinfo->numrgb,
-			GFP_KERNEL);
-	if (!tdev->rgb)
-		return -ENOMEM;
-
-	err = hid_hw_start(hdev, HID_CONNECT_HIDRAW);
-	if (err)
-		return err;
-
-	for (i = 0; i < tdev->fwinfo->numrgb; ++i) {
-		struct thingm_rgb *rgb = tdev->rgb + i;
-
-		rgb->tdev = tdev;
-		rgb->num = tdev->fwinfo->first + i;
-		err = thingm_init_rgb(rgb);
-		if (err) {
-			hid_hw_stop(hdev);
-			return err;
-		}
-	}
-
-	return 0;
-}
-
-static const struct hid_device_id thingm_table[] = {
-	{ HID_USB_DEVICE(USB_VENDOR_ID_THINGM, USB_DEVICE_ID_BLINK1) },
-	{ }
-};
-MODULE_DEVICE_TABLE(hid, thingm_table);
-
-static struct hid_driver thingm_driver = {
-	.name = "thingm",
-	.probe = thingm_probe,
-	.id_table = thingm_table,
-};
-
-module_hid_driver(thingm_driver);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Vivien Didelot <vivien.didelot@savoirfairelinux.com>");
-MODULE_DESCRIPTION("ThingM blink(1) USB RGB LED driver");
-- 
2.9.0


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