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Commit 087c5f20 authored by himta ram's avatar himta ram
Browse files

radio: RTC6226: Make the rtc6226 driver compatible with QTI platform 



Moved the power on functionality under set control ioctl.
Removed the blocker code for tune, seek operation.
Added code for posting event to user space as part
of interrupt handling.
Add support to power on/off rtc6226 chip and enable.

CRs-Fixed: 2525362
Change-Id: I61cea2d59a57ae7395971c7f8493582abedf5038
Signed-off-by: default avatarhimta ram <hram@codeaurora.org>
parent 12db9c0b

drivers/media/radio/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -508,7 +508,7 @@ endif # V4L_RADIO_ISA_DRIVERS 


config I2C_RTC6226_QCA

	tristate "Richwave RTC6226 FM Radio Receiver support with I2C for QCA"

	depends on I2C && RADIO_RTC6226_QCA

	depends on I2C && VIDEO_V4L2

	---help---

	  This is a driver for I2C devices with the Richwave RTC6226

	  chip.

drivers/media/radio/rtc6226/radio-rtc6226-common.c

+327 −413

File changed.

Preview size limit exceeded, changes collapsed.

drivers/media/radio/rtc6226/radio-rtc6226-i2c.c

+351 −99

File changed.

Preview size limit exceeded, changes collapsed.

drivers/media/radio/rtc6226/radio-rtc6226.h

+33 −5
Original line number Diff line number Diff line
@@ -51,6 +51,13 @@ 


#define RW_Kernel_ENG



#define DEBUG

#undef FMDBG

#define FMDBG(fmt, args...) pr_debug("rtc6226: " fmt, ##args)



#undef FMDERR

#define FMDERR(fmt, args...) pr_err("rtc6226: " fmt, ##args)



/* driver definitions */

#define DRIVER_KERNEL_VERSION KERNEL_VERSION(1, 0, 1)

#define DRIVER_CARD "Richwave rtc6226 FM Tuner"
@@ -182,7 +189,7 @@ 


#define WRAP_ENABLE      1

#define WRAP_DISABLE     0



#define DEFAULT_RSSI_TH  8

/* Standard buffer size */

#define STD_BUF_SIZE     256
@@ -191,6 +198,8 @@ 
#define TUNE_PENDING 1

#define SEEK_PENDING 2

#define SCAN_PENDING 3

#define START_SCAN 1

#define WAIT_TIMEOUT_MSEC 7000



#define RTC6226_MIN_SRCH_MODE 0x00

#define RTC6226_MAX_SRCH_MODE 0x02
@@ -302,6 +311,8 @@ 
#define GET_AF_LIST_LEN(x) (x*4)

#define MIN_AF_FREQ_CODE 1

#define MAX_AF_FREQ_CODE 204

#define MIN_RSSI 0

#define MAX_RSSI 15



/* 25 AFs supported for a freq. 224 means 1 AF. 225 means 2 AFs and so on */

#define NO_AF_CNT_CODE 224
@@ -314,6 +325,8 @@ 
#define CH_SPACING_200 200

#define CH_SPACING_100 100

#define CH_SPACING_50 50

#define TURNING_ON 1

#define TURNING_OFF 0



#define RW_PRIBASE	(V4L2_CID_USER_BASE | 0xf000)
@@ -349,12 +362,11 @@ 
#define V4L2_CID_PRIVATE_RDS_SYNC	    (RW_PRIBASE + (CHIPID<<4) + 5)

#define V4L2_CID_PRIVATE_SI	            (RW_PRIBASE + (CHIPID<<4) + 6)



#define WAIT_OVER			0

#define SEEK_WAITING		1

#define NO_WAIT				2

#define TUNE_WAITING		4

#define RDS_WAITING			5

#define SEEK_CANCEL			6

#define TUNE_PARAM 16



/**************************************************************************

 * General Driver Definitions

 **************************************************************************/
@@ -438,6 +450,18 @@ struct rtc6226_af_info { 
	u32 af_list[MAX_NO_OF_AF];

};



struct fm_power_vreg_data {

	/* voltage regulator handle */

	struct regulator *reg;

	/* regulator name */

	const char *name;

	/* voltage levels to be set */

	unsigned int low_vol_level;

	unsigned int high_vol_level;

	/* is this regulator enabled? */

	bool is_enabled;

};



/*

 * rtc6226_device - private data

 */
@@ -453,9 +477,11 @@ struct rtc6226_device { 
	struct pinctrl_state *gpio_state_active;

	struct pinctrl_state *gpio_state_suspend;

	struct v4l2_ctrl_handler ctrl_handler;

	struct fm_power_vreg_data *vddreg;

	struct fm_power_vreg_data *vioreg;

	int band;

	int space;

	unsigned int users;

	atomic_t users;

	unsigned int mode;

	u8 seek_tune_status;

	u8 rssi_th;
@@ -666,3 +692,5 @@ void rtc6226_scan(struct work_struct *work); 
void rtc6226_search(struct rtc6226_device *radio, bool on);

int rtc6226_cancel_seek(struct rtc6226_device *radio);

void rtc6226_rds_handler(struct work_struct *worker);

void rtc6226_q_event(struct rtc6226_device *radio, enum rtc6226_evt_t event);

int rtc6226_reset_rds_data(struct rtc6226_device *radio);