From: Uri Shkolnik <urishk@yahoo.com>
To: LinuxML <linux-media@vger.kernel.org>
Subject: [PATCH] [09051_43] Siano: Add new GPIO management interface
Date: Tue, 19 May 2009 07:49:19 -0700 (PDT) [thread overview]
Message-ID: <855967.12185.qm@web110807.mail.gq1.yahoo.com> (raw)
# HG changeset patch
# User Uri Shkolnik <uris@siano-ms.com>
# Date 1242744570 -10800
# Node ID 749c11a362a9fad1992809007247d5c76c35bfc9
# Parent 08e292f80f37496d8d4b43a542f518196eaa4dc0
[09051_43] Siano: Add new GPIO management interface
From: Uri Shkolnik <uris@siano-ms.com>
Add new GPIO management interface to replace old (buggy) one.
Keeping old interface intact for now.
Priority: normal
Signed-off-by: Uri Shkolnik <uris@siano-ms.com>
diff -r 08e292f80f37 -r 749c11a362a9 linux/drivers/media/dvb/siano/sms-cards.c
--- a/linux/drivers/media/dvb/siano/sms-cards.c Tue May 19 16:30:40 2009 +0300
+++ b/linux/drivers/media/dvb/siano/sms-cards.c Tue May 19 17:49:30 2009 +0300
@@ -109,7 +109,7 @@ static int sms_set_gpio(struct smscore_d
{
int lvl, ret;
u32 gpio;
- struct smscore_gpio_config gpioconfig = {
+ struct smscore_config_gpio gpioconfig = {
.direction = SMS_GPIO_DIRECTION_OUTPUT,
.pullupdown = SMS_GPIO_PULLUPDOWN_NONE,
.inputcharacteristics = SMS_GPIO_INPUTCHARACTERISTICS_NORMAL,
diff -r 08e292f80f37 -r 749c11a362a9 linux/drivers/media/dvb/siano/smscoreapi.c
--- a/linux/drivers/media/dvb/siano/smscoreapi.c Tue May 19 16:30:40 2009 +0300
+++ b/linux/drivers/media/dvb/siano/smscoreapi.c Tue May 19 17:49:30 2009 +0300
@@ -1331,8 +1331,9 @@ static int smscore_map_common_buffer(str
}
#endif
+/* old GPIO managments implementation */
int smscore_configure_gpio(struct smscore_device_t *coredev, u32 pin,
- struct smscore_gpio_config *pinconfig)
+ struct smscore_config_gpio *pinconfig)
{
struct {
struct SmsMsgHdr_ST hdr;
@@ -1399,6 +1400,238 @@ int smscore_set_gpio(struct smscore_devi
return coredev->sendrequest_handler(coredev->context,
&msg, sizeof(msg));
+}
+
+/* new GPIO managment implementation */
+static int GetGpioPinParams(u32 PinNum, u32 *pTranslatedPinNum,
+ u32 *pGroupNum, u32 *pGroupCfg) {
+
+ *pGroupCfg = 1;
+
+ if (PinNum >= 0 && PinNum <= 1) {
+ *pTranslatedPinNum = 0;
+ *pGroupNum = 9;
+ *pGroupCfg = 2;
+ } else if (PinNum >= 2 && PinNum <= 6) {
+ *pTranslatedPinNum = 2;
+ *pGroupNum = 0;
+ *pGroupCfg = 2;
+ } else if (PinNum >= 7 && PinNum <= 11) {
+ *pTranslatedPinNum = 7;
+ *pGroupNum = 1;
+ } else if (PinNum >= 12 && PinNum <= 15) {
+ *pTranslatedPinNum = 12;
+ *pGroupNum = 2;
+ *pGroupCfg = 3;
+ } else if (PinNum == 16) {
+ *pTranslatedPinNum = 16;
+ *pGroupNum = 23;
+ } else if (PinNum >= 17 && PinNum <= 24) {
+ *pTranslatedPinNum = 17;
+ *pGroupNum = 3;
+ } else if (PinNum == 25) {
+ *pTranslatedPinNum = 25;
+ *pGroupNum = 6;
+ } else if (PinNum >= 26 && PinNum <= 28) {
+ *pTranslatedPinNum = 26;
+ *pGroupNum = 4;
+ } else if (PinNum == 29) {
+ *pTranslatedPinNum = 29;
+ *pGroupNum = 5;
+ *pGroupCfg = 2;
+ } else if (PinNum == 30) {
+ *pTranslatedPinNum = 30;
+ *pGroupNum = 8;
+ } else if (PinNum == 31) {
+ *pTranslatedPinNum = 31;
+ *pGroupNum = 17;
+ } else
+ return -1;
+
+ *pGroupCfg <<= 24;
+
+ return 0;
+}
+
+int smscore_gpio_configure(struct smscore_device_t *coredev, u8 PinNum,
+ struct smscore_gpio_config *pGpioConfig) {
+
+ u32 totalLen;
+ u32 TranslatedPinNum;
+ u32 GroupNum;
+ u32 ElectricChar;
+ u32 groupCfg;
+ void *buffer;
+ int rc;
+
+ struct SetGpioMsg {
+ struct SmsMsgHdr_ST xMsgHeader;
+ u32 msgData[6];
+ } *pMsg;
+
+
+ if (PinNum > MAX_GPIO_PIN_NUMBER)
+ return -EINVAL;
+
+ if (pGpioConfig == NULL)
+ return -EINVAL;
+
+ totalLen = sizeof(struct SmsMsgHdr_ST) + (sizeof(u32) * 6);
+
+ buffer = kmalloc(totalLen + SMS_DMA_ALIGNMENT,
+ GFP_KERNEL | GFP_DMA);
+ if (!buffer)
+ return -ENOMEM;
+
+ pMsg = (struct SetGpioMsg *) SMS_ALIGN_ADDRESS(buffer);
+
+ pMsg->xMsgHeader.msgSrcId = DVBT_BDA_CONTROL_MSG_ID;
+ pMsg->xMsgHeader.msgDstId = HIF_TASK;
+ pMsg->xMsgHeader.msgFlags = 0;
+ pMsg->xMsgHeader.msgLength = (u16) totalLen;
+ pMsg->msgData[0] = PinNum;
+
+ if (!(coredev->device_flags & SMS_DEVICE_FAMILY2)) {
+ pMsg->xMsgHeader.msgType = MSG_SMS_GPIO_CONFIG_REQ;
+ if (GetGpioPinParams(PinNum, &TranslatedPinNum, &GroupNum,
+ &groupCfg) != 0)
+ return -EINVAL;
+
+ pMsg->msgData[1] = TranslatedPinNum;
+ pMsg->msgData[2] = GroupNum;
+ ElectricChar = (pGpioConfig->PullUpDown)
+ | (pGpioConfig->InputCharacteristics << 2)
+ | (pGpioConfig->OutputSlewRate << 3)
+ | (pGpioConfig->OutputDriving << 4);
+ pMsg->msgData[3] = ElectricChar;
+ pMsg->msgData[4] = pGpioConfig->Direction;
+ pMsg->msgData[5] = groupCfg;
+ } else {
+ pMsg->xMsgHeader.msgType = MSG_SMS_GPIO_CONFIG_EX_REQ;
+ pMsg->msgData[1] = pGpioConfig->PullUpDown;
+ pMsg->msgData[2] = pGpioConfig->OutputSlewRate;
+ pMsg->msgData[3] = pGpioConfig->OutputDriving;
+ pMsg->msgData[4] = pGpioConfig->Direction;
+ pMsg->msgData[5] = 0;
+ }
+
+ smsendian_handle_tx_message((struct SmsMsgHdr_ST *)pMsg);
+ rc = smscore_sendrequest_and_wait(coredev, pMsg, totalLen,
+ &coredev->gpio_configuration_done);
+
+ if (rc != 0) {
+ if (rc == -ETIME)
+ sms_err("smscore_gpio_configure timeout");
+ else
+ sms_err("smscore_gpio_configure error");
+ }
+ kfree(buffer);
+
+ return rc;
+}
+
+int smscore_gpio_set_level(struct smscore_device_t *coredev, u8 PinNum,
+ u8 NewLevel) {
+
+ u32 totalLen;
+ int rc;
+ void *buffer;
+
+ struct SetGpioMsg {
+ struct SmsMsgHdr_ST xMsgHeader;
+ u32 msgData[3]; /* keep it 3 ! */
+ } *pMsg;
+
+ if ((NewLevel > 1) || (PinNum > MAX_GPIO_PIN_NUMBER) ||
+ (PinNum > MAX_GPIO_PIN_NUMBER))
+ return -EINVAL;
+
+ totalLen = sizeof(struct SmsMsgHdr_ST) +
+ (3 * sizeof(u32)); /* keep it 3 ! */
+
+ buffer = kmalloc(totalLen + SMS_DMA_ALIGNMENT,
+ GFP_KERNEL | GFP_DMA);
+ if (!buffer)
+ return -ENOMEM;
+
+ pMsg = (struct SetGpioMsg *) SMS_ALIGN_ADDRESS(buffer);
+
+ pMsg->xMsgHeader.msgSrcId = DVBT_BDA_CONTROL_MSG_ID;
+ pMsg->xMsgHeader.msgDstId = HIF_TASK;
+ pMsg->xMsgHeader.msgFlags = 0;
+ pMsg->xMsgHeader.msgType = MSG_SMS_GPIO_SET_LEVEL_REQ;
+ pMsg->xMsgHeader.msgLength = (u16) totalLen;
+ pMsg->msgData[0] = PinNum;
+ pMsg->msgData[1] = NewLevel;
+
+ /* Send message to SMS */
+ smsendian_handle_tx_message((struct SmsMsgHdr_ST *)pMsg);
+ rc = smscore_sendrequest_and_wait(coredev, pMsg, totalLen,
+ &coredev->gpio_set_level_done);
+
+ if (rc != 0) {
+ if (rc == -ETIME)
+ sms_err("smscore_gpio_set_level timeout");
+ else
+ sms_err("smscore_gpio_set_level error");
+ }
+ kfree(buffer);
+
+ return rc;
+}
+
+int smscore_gpio_get_level(struct smscore_device_t *coredev, u8 PinNum,
+ u8 *level) {
+
+ u32 totalLen;
+ int rc;
+ void *buffer;
+
+ struct SetGpioMsg {
+ struct SmsMsgHdr_ST xMsgHeader;
+ u32 msgData[2];
+ } *pMsg;
+
+
+ if (PinNum > MAX_GPIO_PIN_NUMBER)
+ return -EINVAL;
+
+ totalLen = sizeof(struct SmsMsgHdr_ST) + (2 * sizeof(u32));
+
+ buffer = kmalloc(totalLen + SMS_DMA_ALIGNMENT,
+ GFP_KERNEL | GFP_DMA);
+ if (!buffer)
+ return -ENOMEM;
+
+ pMsg = (struct SetGpioMsg *) SMS_ALIGN_ADDRESS(buffer);
+
+ pMsg->xMsgHeader.msgSrcId = DVBT_BDA_CONTROL_MSG_ID;
+ pMsg->xMsgHeader.msgDstId = HIF_TASK;
+ pMsg->xMsgHeader.msgFlags = 0;
+ pMsg->xMsgHeader.msgType = MSG_SMS_GPIO_GET_LEVEL_REQ;
+ pMsg->xMsgHeader.msgLength = (u16) totalLen;
+ pMsg->msgData[0] = PinNum;
+ pMsg->msgData[1] = 0;
+
+ /* Send message to SMS */
+ smsendian_handle_tx_message((struct SmsMsgHdr_ST *)pMsg);
+ rc = smscore_sendrequest_and_wait(coredev, pMsg, totalLen,
+ &coredev->gpio_get_level_done);
+
+ if (rc != 0) {
+ if (rc == -ETIME)
+ sms_err("smscore_gpio_get_level timeout");
+ else
+ sms_err("smscore_gpio_get_level error");
+ }
+ kfree(buffer);
+
+ /* Its a race between other gpio_get_level() and the copy of the single
+ * global 'coredev->gpio_get_res' to the function's variable 'level'
+ */
+ *level = coredev->gpio_get_res;
+
+ return rc;
}
static int __init smscore_module_init(void)
diff -r 08e292f80f37 -r 749c11a362a9 linux/drivers/media/dvb/siano/smscoreapi.h
--- a/linux/drivers/media/dvb/siano/smscoreapi.h Tue May 19 16:30:40 2009 +0300
+++ b/linux/drivers/media/dvb/siano/smscoreapi.h Tue May 19 17:49:30 2009 +0300
@@ -550,7 +550,7 @@ struct SMSHOSTLIB_I2C_RES_ST {
};
-struct smscore_gpio_config {
+struct smscore_config_gpio {
#define SMS_GPIO_DIRECTION_INPUT 0
#define SMS_GPIO_DIRECTION_OUTPUT 1
u8 direction;
@@ -574,6 +574,48 @@ struct smscore_gpio_config {
#define SMS_GPIO_OUTPUTDRIVING_12mA 2
#define SMS_GPIO_OUTPUTDRIVING_16mA 3
u8 outputdriving;
+};
+
+struct smscore_gpio_config {
+#define SMS_GPIO_DIRECTION_INPUT 0
+#define SMS_GPIO_DIRECTION_OUTPUT 1
+ u8 Direction;
+
+#define SMS_GPIO_PULLUPDOWN_NONE 0
+#define SMS_GPIO_PULLUPDOWN_PULLDOWN 1
+#define SMS_GPIO_PULLUPDOWN_PULLUP 2
+#define SMS_GPIO_PULLUPDOWN_KEEPER 3
+ u8 PullUpDown;
+
+#define SMS_GPIO_INPUT_CHARACTERISTICS_NORMAL 0
+#define SMS_GPIO_INPUT_CHARACTERISTICS_SCHMITT 1
+ u8 InputCharacteristics;
+
+#define SMS_GPIO_OUTPUT_SLEW_RATE_SLOW 1 /* 10xx */
+#define SMS_GPIO_OUTPUT_SLEW_RATE_FAST 0 /* 10xx */
+
+
+#define SMS_GPIO_OUTPUT_SLEW_RATE_0_45_V_NS 0 /* 11xx */
+#define SMS_GPIO_OUTPUT_SLEW_RATE_0_9_V_NS 1 /* 11xx */
+#define SMS_GPIO_OUTPUT_SLEW_RATE_1_7_V_NS 2 /* 11xx */
+#define SMS_GPIO_OUTPUT_SLEW_RATE_3_3_V_NS 3 /* 11xx */
+ u8 OutputSlewRate;
+
+#define SMS_GPIO_OUTPUT_DRIVING_S_4mA 0 /* 10xx */
+#define SMS_GPIO_OUTPUT_DRIVING_S_8mA 1 /* 10xx */
+#define SMS_GPIO_OUTPUT_DRIVING_S_12mA 2 /* 10xx */
+#define SMS_GPIO_OUTPUT_DRIVING_S_16mA 3 /* 10xx */
+
+#define SMS_GPIO_OUTPUT_DRIVING_1_5mA 0 /* 11xx */
+#define SMS_GPIO_OUTPUT_DRIVING_2_8mA 1 /* 11xx */
+#define SMS_GPIO_OUTPUT_DRIVING_4mA 2 /* 11xx */
+#define SMS_GPIO_OUTPUT_DRIVING_7mA 3 /* 11xx */
+#define SMS_GPIO_OUTPUT_DRIVING_10mA 4 /* 11xx */
+#define SMS_GPIO_OUTPUT_DRIVING_11mA 5 /* 11xx */
+#define SMS_GPIO_OUTPUT_DRIVING_14mA 6 /* 11xx */
+#undef SMS_GPIO_OUTPUT_DRIVING_16mA
+#define SMS_GPIO_OUTPUT_DRIVING_16mA 7 /* 11xx */
+ u8 OutputDriving;
};
extern void smscore_registry_setmode(char *devpath, int mode);
@@ -619,9 +661,18 @@ extern void smscore_putbuffer(struct sms
extern void smscore_putbuffer(struct smscore_device_t *coredev,
struct smscore_buffer_t *cb);
+/* old GPIO managment */
int smscore_configure_gpio(struct smscore_device_t *coredev, u32 pin,
- struct smscore_gpio_config *pinconfig);
+ struct smscore_config_gpio *pinconfig);
int smscore_set_gpio(struct smscore_device_t *coredev, u32 pin, int level);
+
+/* new GPIO managment */
+extern int smscore_gpio_configure(struct smscore_device_t *coredev, u8 PinNum,
+ struct smscore_gpio_config *pGpioConfig);
+extern int smscore_gpio_set_level(struct smscore_device_t *coredev, u8 PinNum,
+ u8 NewLevel);
+extern int smscore_gpio_get_level(struct smscore_device_t *coredev, u8 PinNum,
+ u8 *level);
void smscore_set_board_id(struct smscore_device_t *core, int id);
int smscore_get_board_id(struct smscore_device_t *core);
next reply other threads:[~2009-05-19 14:49 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-19 14:49 Uri Shkolnik [this message]
2009-05-19 16:13 ` [PATCH] [09051_43] Siano: Add new GPIO management interface Michael Krufky
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