Commit 76052bc8 authored Nov 16, 2008 by Michael Krufky Committed by Mauro Carvalho Chehab Dec 29, 2008

V4L/DVB (9734): sms1xxx: add functions to configure and set gpio



Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

parent c9455fbb

drivers/media/dvb/siano/smscoreapi.c

+70 −0

Original line number	Diff line number	Diff line
		@@ -1187,6 +1187,76 @@ int smsclient_sendrequest(struct smscore_client_t *client,
		}


		int smscore_configure_gpio(struct smscore_device_t *coredev, u32 pin,
		struct smscore_gpio_config *pinconfig)
		{
		struct {
		struct SmsMsgHdr_ST hdr;
		u32 data[6];
		} msg;

		if (coredev->device_flags & SMS_DEVICE_FAMILY2) {
		msg.hdr.msgSrcId = DVBT_BDA_CONTROL_MSG_ID;
		msg.hdr.msgDstId = HIF_TASK;
		msg.hdr.msgFlags = 0;
		msg.hdr.msgType = MSG_SMS_GPIO_CONFIG_EX_REQ;
		msg.hdr.msgLength = sizeof(msg);

		msg.data[0] = pin;
		msg.data[1] = pinconfig->pullupdown;

		/* Convert slew rate for Nova: Fast(0) = 3 / Slow(1) = 0; */
		msg.data[2] = pinconfig->outputslewrate == 0 ? 3 : 0;

		switch (pinconfig->outputdriving) {
		case SMS_GPIO_OUTPUTDRIVING_16mA:
		msg.data[3] = 7; /* Nova - 16mA */
		break;
		case SMS_GPIO_OUTPUTDRIVING_12mA:
		msg.data[3] = 5; /* Nova - 11mA */
		break;
		case SMS_GPIO_OUTPUTDRIVING_8mA:
		msg.data[3] = 3; /* Nova - 7mA */
		break;
		case SMS_GPIO_OUTPUTDRIVING_4mA:
		default:
		msg.data[3] = 2; /* Nova - 4mA */
		break;
		}

		msg.data[4] = pinconfig->direction;
		msg.data[5] = 0;
		} else /* TODO: SMS_DEVICE_FAMILY1 */
		return -EINVAL;

		return coredev->sendrequest_handler(coredev->context,
		&msg, sizeof(msg));
		}

		int smscore_set_gpio(struct smscore_device_t *coredev, u32 pin, int level)
		{
		struct {
		struct SmsMsgHdr_ST hdr;
		u32 data[3];
		} msg;

		if (pin > MAX_GPIO_PIN_NUMBER)
		return -EINVAL;

		msg.hdr.msgSrcId = DVBT_BDA_CONTROL_MSG_ID;
		msg.hdr.msgDstId = HIF_TASK;
		msg.hdr.msgFlags = 0;
		msg.hdr.msgType = MSG_SMS_GPIO_SET_LEVEL_REQ;
		msg.hdr.msgLength = sizeof(msg);

		msg.data[0] = pin;
		msg.data[1] = level ? 1 : 0;
		msg.data[2] = 0;

		return coredev->sendrequest_handler(coredev->context,
		&msg, sizeof(msg));
		}

		static int __init smscore_module_init(void)
		{
		int rc = 0;

drivers/media/dvb/siano/smscoreapi.h

+32 −0

Original line number	Diff line number	Diff line
		@@ -186,6 +186,8 @@ struct smsclient_params_t {
		#define MSG_SW_RELOAD_EXEC_REQ 704
		#define MSG_SW_RELOAD_EXEC_RES 705
		#define MSG_SMS_SPI_INT_LINE_SET_REQ 710
		#define MSG_SMS_GPIO_CONFIG_EX_REQ 712
		#define MSG_SMS_GPIO_CONFIG_EX_RES 713
		#define MSG_SMS_ISDBT_TUNE_REQ 776
		#define MSG_SMS_ISDBT_TUNE_RES 777

		@@ -341,6 +343,32 @@ struct SmsMsgStatisticsInfo_ST {
		};


		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_INPUTCHARACTERISTICS_NORMAL 0
		#define SMS_GPIO_INPUTCHARACTERISTICS_SCHMITT 1
		u8 inputcharacteristics;

		#define SMS_GPIO_OUTPUTSLEWRATE_FAST 0
		#define SMS_GPIO_OUTPUTSLEWRATE_SLOW 1
		u8 outputslewrate;

		#define SMS_GPIO_OUTPUTDRIVING_4mA 0
		#define SMS_GPIO_OUTPUTDRIVING_8mA 1
		#define SMS_GPIO_OUTPUTDRIVING_12mA 2
		#define SMS_GPIO_OUTPUTDRIVING_16mA 3
		u8 outputdriving;
		};

		struct smsdvb_client_t {
		struct list_head entry;

		@@ -396,6 +424,10 @@ struct smscore_buffer_t smscore_getbuffer(struct smscore_device_t coredev);
		extern void smscore_putbuffer(struct smscore_device_t *coredev,
		struct smscore_buffer_t *cb);

		int smscore_configure_gpio(struct smscore_device_t *coredev, u32 pin,
		struct smscore_gpio_config *pinconfig);
		int smscore_set_gpio(struct smscore_device_t *coredev, u32 pin, int level);

		void smscore_set_board_id(struct smscore_device_t *core, int id);
		int smscore_get_board_id(struct smscore_device_t *core);