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xeecos/imx179.c

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imx179 sensor driver
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imx179.c
#include <media/imx179.h>
#define IMX179_ID 0x0179
#define IMX179_ID_ADDRESS 0x0002
#define IMX179_STREAM_CONTROL_REG 0x0100
#define IMX179_STREAM_ENABLE 0x01
#define IMX179_STREAM_DISABLE 0x00
#define IMX179_SW_RESET 0x0103
#define IMX179_FINE_INTEG_TIME_HIGH 0x0200
#define IMX179_FINE_INTEG_TIME_LOW 0x0201
#define IMX179_COARSE_INTEG_TIME_HIGH 0x0202
#define IMX179_COARSE_INTEG_TIME_LOW 0x0203
#define IMX179_ANA_GAIN_GLOBAL 0x0205
#define IMX179_DIG_GAIN_GR_HIGH 0x020E
#define IMX179_DIG_GAIN_GR_LOW 0x020F
#define IMX179_DIG_GAIN_R_HIGH 0x0210
#define IMX179_DIG_GAIN_R_LOW 0x0211
#define IMX179_DIG_GAIN_B_HIGH 0x0212
#define IMX179_DIG_GAIN_B_LOW 0x0213
#define IMX179_DIG_GAIN_GB_HIGH 0x0214
#define IMX179_DIG_GAIN_GB_LOW 0x0215
#define IMX179_BINNING_MODE_REG 0x0390
#define IMX179_BINNING_NORMAL 0x00
#define IMX179_BINNING_2 0x01
#define IMX179_BINNING_3 0x02
#define IMX179_VTPXCK_DIV 0x0301
#define IMX179_VTPXCK_DIV 0x0303
#define IMX179_PREPLLCK_DIV 0x0305
#define IMX179_OPPXCK_DIV 0x0309
#define IMX179_OPSYCK_DIV 0x030B
#define IMX179_PLL_MPY_HIGH 0x030C
#define IMX179_PLL_MPY_LOW 0x030D
#define IMX179_LINE_LENGTH_HIGH 0x0340
#define IMX179_LINE_LENGTH_LOW 0x0341
#define IMX179_FRAME_LENGTH_HIGH 0x0342
#define IMX179_FRAME_LENGTH_LOW 0x0343
#define IMX179_X_START_HIGH 0x0344
#define IMX179_X_START_LOW 0x0345
#define IMX179_Y_START_HIGH 0x0346
#define IMX179_Y_START_LOW 0x0347
#define IMX179_X_END_HIGH 0x0348
#define IMX179_X_END_LOW 0x0349
#define IMX179_Y_END_HIGH 0x034A
#define IMX179_Y_END_LOW 0x034B
#define IMX179_X_SIZE_HIGH 0x034C
#define IMX179_X_SIZE_LOW 0x034D
#define IMX179_Y_SIZE_HIGH 0x034E
#define IMX179_Y_SIZE_LOW 0x034F
#define IMX179_COARSE_TIME_MIN_HIGH 0x1004
#define IMX179_COARSE_TIME_MIN_LOW 0x1005
#define IMX179_COARSE_TIME_MAX_HIGH 0x1006
#define IMX179_COARSE_TIME_MAX_LOW 0x1007
#define IMX179_SENSOR_TYPE NVC_IMAGER_TYPE_RAW
#define IMX179_STARTUP_DELAY_MS 50
#define IMX179_RES_CHG_WAIT_TIME_MS 100
#define IMX179_SIZEOF_I2C_BUF 16
#define IMX179_TABLE_WAIT_MS 0
#define IMX179_TABLE_END 1
#define IMX179_NUM_MODES ARRAY_SIZE(imx179_mode_table)
#define IMX179_MODE_UNKNOWN (IMX179_NUM_MODES + 1)
#define IMX179_LENS_MAX_APERTURE 0 /* / _INT2FLOAT_DIVISOR */
#define IMX179_LENS_FNUMBER 0 /* / _INT2FLOAT_DIVISOR */
#define IMX179_LENS_FOCAL_LENGTH 3700 /* / _INT2FLOAT_DIVISOR */
#define IMX179_LENS_VIEW_ANGLE_H 75600 /* / _INT2FLOAT_DIVISOR */
#define IMX179_LENS_VIEW_ANGLE_V 75600 /* / _INT2FLOAT_DIVISOR */
#define IMX179_WAIT_MS 3
#define IMX179_I2C_TABLE_MAX_ENTRIES 400
static u16 imx179_ids[] = {
0x0179,
};
static struct nvc_gpio_init imx179_gpios[] = {
{IMX179_GPIO_RESET, GPIOF_OUT_INIT_LOW, "reset", false, true},
{IMX179_GPIO_PWDN, GPIOF_OUT_INIT_LOW, "pwdn", false, true},
{IMX179_GPIO_GP1, 0, "gp1", false, false},
};
static struct nvc_regulator_init imx179_vregs[] = {
{ IMX179_VREG_DVDD, "vdig", },
{ IMX179_VREG_AVDD, "vana", },
{ IMX179_VREG_IOVDD, "vif", },
};
struct imx179_info {
atomic_t in_use;
struct i2c_client *i2c_client;
struct imx179_platform_data *pdata;
struct nvc_imager_cap *cap;
struct miscdevice miscdev;
struct list_head list;
struct clk *mclk;
struct nvc_gpio gpio[ARRAY_SIZE(imx179_gpios)];
struct nvc_regulator vreg[ARRAY_SIZE(imx179_vregs)];
int pwr_api;
int pwr_dev;
u8 s_mode;
struct imx179_info *s_info;
u32 mode_index;
bool mode_valid;
bool mode_enable;
bool reset_flag;
unsigned test_pattern;
struct nvc_imager_static_nvc sdata;
u8 i2c_buf[IMX179_SIZEOF_I2C_BUF];
u8 bin_en;
#ifdef CONFIG_DEBUG_FS
struct dentry *debugfs_root;
u16 i2c_reg;
#endif
};
struct imx179_reg {
u16 addr;
u16 val;
};
struct imx179_mode_data {
struct nvc_imager_mode sensor_mode;
struct nvc_imager_dynamic_nvc sensor_dnvc;
struct imx179_reg *p_mode_i2c;
};
static struct nvc_imager_cap imx179_dflt_cap = {
.identifier = "IMX179",
.sensor_nvc_interface = 3,
.pixel_types[0] = 0x100,
.orientation = 0,
.direction = 0,
.initial_clock_rate_khz = 6000,
.clock_profiles[0] = {
.external_clock_khz = 24000,
.clock_multiplier = 8500000, /* value / 1,000,000 */
},
.clock_profiles[1] = {
.external_clock_khz = 0,
.clock_multiplier = 0,
},
.h_sync_edge = 0,
.v_sync_edge = 0,
.mclk_on_vgp0 = 0,
.csi_port = 0,
.data_lanes = 4,
.virtual_channel_id = 0,
.discontinuous_clk_mode = 1,
.cil_threshold_settle = 0x0,
.min_blank_time_width = 16,
.min_blank_time_height = 16,
.preferred_mode_index = 1,
.focuser_guid = NVC_FOCUS_GUID(0),
.torch_guid = 0, /*NVC_TORCH_GUID(0),*/
.cap_version = NVC_IMAGER_CAPABILITIES_VERSION2,
};
static struct imx179_platform_data imx179_dflt_pdata = {
.cfg = 0,
.num = 0,
.sync = 0,
.dev_name = "camera",
.cap = &imx179_dflt_cap,
};
/* NOTE: static vs dynamic
* If a member in the nvc_imager_static_nvc structure is not actually
* static data, then leave blank and add the parameter to the parameter
* read function that dynamically reads the data. The NVC user driver
* will call the parameter read for the data if the member data is 0.
* If the dynamic data becomes static during probe (a one time read
* such as device ID) then add the dynamic read to the _sdata_init
* function.
*/
static struct nvc_imager_static_nvc imx179_dflt_sdata = {
.api_version = NVC_IMAGER_API_STATIC_VER,
.sensor_type = IMX179_SENSOR_TYPE,
.bits_per_pixel = 10,
.sensor_id = IMX179_ID,
.sensor_id_minor = 0,
.focal_len = IMX179_LENS_FOCAL_LENGTH,
.max_aperture = IMX179_LENS_MAX_APERTURE,
.fnumber = IMX179_LENS_FNUMBER,
.view_angle_h = IMX179_LENS_VIEW_ANGLE_H,
.view_angle_v = IMX179_LENS_VIEW_ANGLE_V,
.res_chg_wait_time = IMX179_RES_CHG_WAIT_TIME_MS,
};
static LIST_HEAD(imx179_info_list);
static DEFINE_SPINLOCK(imx179_spinlock);
static struct imx179_reg tp_none_seq[] = {
{IMX179_TABLE_END, 0x0000}
};
static struct imx179_reg tp_cbars_seq[] = {
{IMX179_TABLE_END, 0x0000}
};
static struct imx179_reg tp_checker_seq[] = {
{IMX179_TABLE_END, 0x0000}
};
static struct imx179_reg *test_patterns[] = {
tp_none_seq,
tp_cbars_seq,
tp_checker_seq,
};
static struct imx179_reg imx179_3280x2464_i2c[] = {
/*stand by*/
{0x0100, 0x00},
{IMX179_TABLE_WAIT_MS, IMX179_WAIT_MS},
{0x0101, 0x00},
{0x0202, 0x09},
{0x0203, 0xCC},
{0x0301, 0x05},
{0x0303, 0x01},
{0x0305, 0x06},
{0x0309, 0x05},
{0x030B, 0x01},
{0x030C, 0x00},
{0x030D, 0xA2},
{0x0340, 0x09},
{0x0341, 0xD0},
{0x0342, 0x0D},
{0x0343, 0x70},
{0x0344, 0x00},
{0x0345, 0x00},
{0x0346, 0x00},
{0x0347, 0x00},
{0x0348, 0x0C},
{0x0349, 0xCF},
{0x034A, 0x09},
{0x034B, 0x9F},
{0x034C, 0x0C},
{0x034D, 0xD0},
{0x034E, 0x09},
{0x034F, 0xA0},
{0x0383, 0x01},
{0x0387, 0x01},
{IMX179_BINNING_MODE_REG, 0x00},
{0x0401, 0x00},
{0x0405, 0x10},
{0x3020, 0x10},
{0x3041, 0x15},
{0x3042, 0x87},
{0x3089, 0x4F},
{0x3309, 0x9A},
{0x3344, 0x57},
{0x3345, 0x1F},
{0x3362, 0x0A},
{0x3363, 0x0A},
{0x3364, 0x00},
{0x3368, 0x18},
{0x3369, 0x00},
{0x3370, 0x77},
{0x3371, 0x2F},
{0x3372, 0x4F},
{0x3373, 0x2F},
{0x3374, 0x2F},
{0x3375, 0x37},
{0x3376, 0x9F},
{0x3377, 0x37},
{0x33C8, 0x00},
{0x33D4, 0x0C},
{0x33D5, 0xD0},
{0x33D6, 0x09},
{0x33D7, 0xA0},
{0x4100, 0x0E},
{0x4108, 0x01},
{0x4109, 0x7C},
{IMX179_TABLE_WAIT_MS, IMX179_WAIT_MS},
{IMX179_TABLE_END, 0x00}
};
static struct imx179_reg imx179_1640x1232_i2c[] = {
/*stand by*/
{0x0100, 0x00},
{IMX179_TABLE_WAIT_MS, IMX179_WAIT_MS},
{0x0101, 0x00},
{0x0202, 0x09},
{0x0203, 0xCC},
{0x0301, 0x05},
{0x0303, 0x01},
{0x0305, 0x06},
{0x0309, 0x05},
{0x030B, 0x01},
{0x030C, 0x00},
{0x030D, 0xA2},
{0x0340, 0x09},
{0x0341, 0xD0},
{0x0342, 0x0D},
{0x0343, 0x70},
{0x0344, 0x00},
{0x0345, 0x00},
{0x0346, 0x00},
{0x0347, 0x00},
{0x0348, 0x0C},
{0x0349, 0xCF},
{0x034A, 0x09},
{0x034B, 0x9F},
{0x034C, 0x06},
{0x034D, 0x68},
{0x034E, 0x04},
{0x034F, 0xD0},
{0x0383, 0x01},
{0x0387, 0x01},
{IMX179_BINNING_MODE_REG, 0x01},
{0x0401, 0x00},
{0x0405, 0x10},
{0x3020, 0x10},
{0x3041, 0x15},
{0x3042, 0x87},
{0x3089, 0x4F},
{0x3309, 0x9A},
{0x3344, 0x57},
{0x3345, 0x1F},
{0x3362, 0x0A},
{0x3363, 0x0A},
{0x3364, 0x00},
{0x3368, 0x18},
{0x3369, 0x00},
{0x3370, 0x77},
{0x3371, 0x2F},
{0x3372, 0x4F},
{0x3373, 0x2F},
{0x3374, 0x2F},
{0x3375, 0x37},
{0x3376, 0x9F},
{0x3377, 0x37},
{0x33C8, 0x00},
{0x33D4, 0x06},
{0x33D5, 0x68},
{0x33D6, 0x04},
{0x33D7, 0xD0},
{0x4100, 0x0E},
{0x4108, 0x01},
{0x4109, 0x7C},
{IMX179_TABLE_WAIT_MS, IMX179_WAIT_MS},
{IMX179_TABLE_END, 0x00}
};
static struct imx179_reg imx179_1920x1080_i2c[] = {
/*stand by*/
{0x0100, 0x00},
{IMX179_TABLE_WAIT_MS, IMX179_WAIT_MS},
{0x0101, 0x00},
{0x0202, 0x09},
{0x0203, 0xCC},
{0x0301, 0x05},
{0x0303, 0x01},
{0x0305, 0x06},
{0x0309, 0x05},
{0x030B, 0x01},
{0x030C, 0x00},
{0x030D, 0xA2},
{0x0340, 0x09},
{0x0341, 0xD0},
{0x0342, 0x0D},
{0x0343, 0x70},
{0x0344, 0x02},
{0x0345, 0xA8},
{0x0346, 0x02},
{0x0347, 0xB4},
{0x0348, 0x0A},
{0x0349, 0x27},
{0x034A, 0x06},
{0x034B, 0xEB},
{0x034C, 0x07},
{0x034D, 0x80},
{0x034E, 0x04},
{0x034F, 0x38},
{0x0383, 0x01},
{0x0387, 0x01},
{IMX179_BINNING_MODE_REG, 0x00},
{0x0401, 0x00},
{0x0405, 0x10},
{0x3020, 0x10},
{0x3041, 0x15},
{0x3042, 0x87},
{0x3089, 0x4F},
{0x3309, 0x9A},
{0x3344, 0x57},
{0x3345, 0x1F},
{0x3362, 0x0A},
{0x3363, 0x0A},
{0x3364, 0x00},
{0x3368, 0x18},
{0x3369, 0x00},
{0x3370, 0x77},
{0x3371, 0x2F},
{0x3372, 0x4F},
{0x3373, 0x2F},
{0x3374, 0x2F},
{0x3375, 0x37},
{0x3376, 0x9F},
{0x3377, 0x37},
{0x33C8, 0x00},
{0x33D4, 0x07},
{0x33D5, 0x80},
{0x33D6, 0x04},
{0x33D7, 0x38},
{0x4100, 0x0E},
{0x4108, 0x01},
{0x4109, 0x7C},
{IMX179_TABLE_WAIT_MS, IMX179_WAIT_MS},
{IMX179_TABLE_END, 0x00}
};
static struct imx179_reg imx179_1280x720_i2c[] = {
/*stand by*/
{0x0100, 0x00},
{IMX179_TABLE_WAIT_MS, IMX179_WAIT_MS},
{0x0101, 0x00},
{0x0202, 0x09},
{0x0203, 0xCC},
{0x0301, 0x05},
{0x0303, 0x01},
{0x0305, 0x06},
{0x0309, 0x05},
{0x030B, 0x01},
{0x030C, 0x00},
{0x030D, 0xA2},
{0x0340, 0x09},
{0x0341, 0xD0},
{0x0342, 0x0D},
{0x0343, 0x70},
{0x0344, 0x01},
{0x0345, 0x68},
{0x0346, 0x02},
{0x0347, 0x00},
{0x0348, 0x0B},
{0x0349, 0x67},
{0x034A, 0x07},
{0x034B, 0x9F},
{0x034C, 0x05},
{0x034D, 0x00},
{0x034E, 0x02},
{0x034F, 0xD0},
{0x0383, 0x01},
{0x0387, 0x01},
{IMX179_BINNING_MODE_REG, 0x01},
{0x0401, 0x00},
{0x0405, 0x10},
{0x3020, 0x10},
{0x3041, 0x15},
{0x3042, 0x87},
{0x3089, 0x4F},
{0x3309, 0x9A},
{0x3344, 0x57},
{0x3345, 0x1F},
{0x3362, 0x0A},
{0x3363, 0x0A},
{0x3364, 0x00},
{0x3368, 0x18},
{0x3369, 0x00},
{0x3370, 0x77},
{0x3371, 0x2F},
{0x3372, 0x4F},
{0x3373, 0x2F},
{0x3374, 0x2F},
{0x3375, 0x37},
{0x3376, 0x9F},
{0x3377, 0x37},
{0x33C8, 0x00},
{0x33D4, 0x05},
{0x33D5, 0x00},
{0x33D6, 0x02},
{0x33D7, 0xD0},
{0x4100, 0x0E},
{0x4108, 0x01},
{0x4109, 0x7C},
{IMX179_TABLE_WAIT_MS, IMX179_WAIT_MS},
{IMX179_TABLE_END, 0x00}
};
static struct imx179_reg imx179_640x480_i2c[] = {
/*stand by*/
{0x0100, 0x00},
{IMX179_TABLE_WAIT_MS, IMX179_WAIT_MS},
{0x0101, 0x00},
{0x0202, 0x09},
{0x0203, 0xCC},
{0x0301, 0x05},
{0x0303, 0x01},
{0x0305, 0x06},
{0x0309, 0x05},
{0x030B, 0x01},
{0x030C, 0x00},
{0x030D, 0xA2},
{0x0340, 0x09},
{0x0341, 0xD0},
{0x0342, 0x0D},
{0x0343, 0x70},
{0x0344, 0x01},
{0x0345, 0x68},
{0x0346, 0x01},
{0x0347, 0x10},
{0x0348, 0x0B},
{0x0349, 0x67},
{0x034A, 0x08},
{0x034B, 0x8F},
{0x034C, 0x02},
{0x034D, 0x80},
{0x034E, 0x01},
{0x034F, 0xE0},
{0x0383, 0x01},
{0x0387, 0x01},
{IMX179_BINNING_MODE_REG, 0x02},
{0x0401, 0x00},
{0x0405, 0x10},
{0x3020, 0x10},
{0x3041, 0x15},
{0x3042, 0x87},
{0x3089, 0x4F},
{0x3309, 0x9A},
{0x3344, 0x57},
{0x3345, 0x1F},
{0x3362, 0x0A},
{0x3363, 0x0A},
{0x3364, 0x00},
{0x3368, 0x18},
{0x3369, 0x00},
{0x3370, 0x77},
{0x3371, 0x2F},
{0x3372, 0x4F},
{0x3373, 0x2F},
{0x3374, 0x2F},
{0x3375, 0x37},
{0x3376, 0x9F},
{0x3377, 0x37},
{0x33C8, 0x00},
{0x33D4, 0x02},
{0x33D5, 0x80},
{0x33D6, 0x01},
{0x33D7, 0xE0},
{0x4100, 0x0E},
{0x4108, 0x01},
{0x4109, 0x7C},
{IMX179_TABLE_WAIT_MS, IMX179_WAIT_MS},
{IMX179_TABLE_END, 0x00}
};
/* Each resolution requires the below data table setup and the corresponding
* I2C data table.
* If more NVC data is needed for the NVC driver, be sure and modify the
* nvc_imager_nvc structure in nvc_imager.h
* If more data sets are needed per resolution, they can be added to the
* table format below with the imx179_mode_data structure. New data sets
* should conform to an already defined NVC structure. If it's data for the
* NVC driver, then it should be added to the nvc_imager_nvc structure.
* Steps to add a resolution:
* 1. Add I2C data table
* 2. Add imx179_mode_data table
* 3. Add entry to the imx179_mode_table
*/
static struct imx179_mode_data imx179_3280x2464 = {
.sensor_mode = {
.res_x = 3280,
.res_y = 2464,
.active_start_x = 0,
.active_stary_y = 0,
.peak_frame_rate = 30000, /* / _INT2FLOAT_DIVISOR */
.pixel_aspect_ratio = 1000, /* / _INT2FLOAT_DIVISOR */
.pll_multiplier = 11000, /* / _INT2FLOAT_DIVISOR */
.crop_mode = NVC_IMAGER_CROPMODE_NONE,
},
.sensor_dnvc = {
.api_version = NVC_IMAGER_API_DYNAMIC_VER,
.region_start_x = 0,
.region_start_y = 0,
.x_scale = 1,
.y_scale = 1,
.bracket_caps = 1,
.flush_count = 2,
.init_intra_frame_skip = 0,
.ss_intra_frame_skip = 2,
.ss_frame_number = 3,
.coarse_time = 0x09CC,
.max_coarse_diff = 5,
.min_exposure_course = 2,
.max_exposure_course = 0xFFFC,
.diff_integration_time = 110, /* / _INT2FLOAT_DIVISOR */
.line_length = 0x0D70,
.frame_length = 0x09D0,
.min_frame_length = 0x09D0,
.max_frame_length = 0xFFFF,
.min_gain = 1, /* / _INT2FLOAT_DIVISOR */
.max_gain = 16000, /* / _INT2FLOAT_DIVISOR */
.inherent_gain = 1000, /* / _INT2FLOAT_DIVISOR */
.inherent_gain_bin_en = 1000, /* / _INT2FLOAT_DIVISOR */
.support_bin_control = 0,
.support_fast_mode = 0,
.pll_mult = 0xA2,
.pll_div = 0x06,
},
.p_mode_i2c = imx179_3280x2464_i2c,
};
static struct imx179_mode_data imx179_1640x1232 = {
.sensor_mode = {
.res_x = 1640,
.res_y = 1232,
.active_start_x = 0,
.active_stary_y = 0,
.peak_frame_rate = 30000, /* / _INT2FLOAT_DIVISOR */
.pixel_aspect_ratio = 1000, /* / _INT2FLOAT_DIVISOR */
.pll_multiplier = 11000, /* / _INT2FLOAT_DIVISOR */
.crop_mode = NVC_IMAGER_CROPMODE_NONE,
},
.sensor_dnvc = {
.api_version = NVC_IMAGER_API_DYNAMIC_VER,
.region_start_x = 0,
.region_start_y = 0,
.x_scale = 1,
.y_scale = 1,
.bracket_caps = 1,
.flush_count = 2,
.init_intra_frame_skip = 0,
.ss_intra_frame_skip = 2,
.ss_frame_number = 3,
.coarse_time = 0x09CC,
.max_coarse_diff = 5,
.min_exposure_course = 2,
.max_exposure_course = 0xFFFC,
.diff_integration_time = 110, /* / _INT2FLOAT_DIVISOR */
.line_length = 0x0D70,
.frame_length = 0x09D0,
.min_frame_length = 0x09D0,
.max_frame_length = 0xFFFF,
.min_gain = 1, /* / _INT2FLOAT_DIVISOR */
.max_gain = 16000, /* / _INT2FLOAT_DIVISOR */
.inherent_gain = 1000, /* / _INT2FLOAT_DIVISOR */
.inherent_gain_bin_en = 1000, /* / _INT2FLOAT_DIVISOR */
.support_bin_control = 0,
.support_fast_mode = 0,
.pll_mult = 0xA2,
.pll_div = 0x06,
},
.p_mode_i2c = imx179_1640x1232_i2c,
};
static struct imx179_mode_data imx179_1920x1080 = {
.sensor_mode = {
.res_x = 1920,
.res_y = 1080,
.active_start_x = 0,
.active_stary_y = 0,
.peak_frame_rate = 30000, /* / _INT2FLOAT_DIVISOR */
.pixel_aspect_ratio = 1000, /* / _INT2FLOAT_DIVISOR */
.pll_multiplier = 11000, /* / _INT2FLOAT_DIVISOR */
.crop_mode = NVC_IMAGER_CROPMODE_NONE,
},
.sensor_dnvc = {
.api_version = NVC_IMAGER_API_DYNAMIC_VER,
.region_start_x = 0,
.region_start_y = 0,
.x_scale = 1,
.y_scale = 1,
.bracket_caps = 1,
.flush_count = 2,
.init_intra_frame_skip = 0,
.ss_intra_frame_skip = 2,
.ss_frame_number = 3,
.coarse_time = 0x09CC,
.max_coarse_diff = 5,
.min_exposure_course = 2,
.max_exposure_course = 0xFFFC,
.diff_integration_time = 110, /* / _INT2FLOAT_DIVISOR */
.line_length = 0x0D70,
.frame_length = 0x09D0,
.min_frame_length = 0x09D0,
.max_frame_length = 0xFFFF,
.min_gain = 1, /* / _INT2FLOAT_DIVISOR */
.max_gain = 16000, /* / _INT2FLOAT_DIVISOR */
.inherent_gain = 1000, /* / _INT2FLOAT_DIVISOR */
.inherent_gain_bin_en = 1000, /* / _INT2FLOAT_DIVISOR */
.support_bin_control = 0,
.support_fast_mode = 0,
.pll_mult = 0xA2,
.pll_div = 0x06,
},
.p_mode_i2c = imx179_1920x1080_i2c,
};
static struct imx179_mode_data imx179_1280x720 = {
.sensor_mode = {
.res_x = 1280,
.res_y = 720,
.active_start_x = 0,
.active_stary_y = 0,
.peak_frame_rate = 30000, /* / _INT2FLOAT_DIVISOR */
.pixel_aspect_ratio = 1000, /* / _INT2FLOAT_DIVISOR */
.pll_multiplier = 11000, /* / _INT2FLOAT_DIVISOR */
.crop_mode = NVC_IMAGER_CROPMODE_NONE,
},
.sensor_dnvc = {
.api_version = NVC_IMAGER_API_DYNAMIC_VER,
.region_start_x = 0,
.region_start_y = 0,
.x_scale = 1,
.y_scale = 1,
.bracket_caps = 1,
.flush_count = 2,
.init_intra_frame_skip = 0,
.ss_intra_frame_skip = 2,
.ss_frame_number = 3,
.coarse_time = 0x09CC,
.max_coarse_diff = 5,
.min_exposure_course = 2,
.max_exposure_course = 0xFFFC,
.diff_integration_time = 110, /* / _INT2FLOAT_DIVISOR */
.line_length = 0x0D70,
.frame_length = 0x09D0,
.min_frame_length = 0x09D0,
.max_frame_length = 0xFFFF,
.min_gain = 1, /* / _INT2FLOAT_DIVISOR */
.max_gain = 16000, /* / _INT2FLOAT_DIVISOR */
.inherent_gain = 1000, /* / _INT2FLOAT_DIVISOR */
.inherent_gain_bin_en = 1000, /* / _INT2FLOAT_DIVISOR */
.support_bin_control = 0,
.support_fast_mode = 0,
.pll_mult = 0xA2,
.pll_div = 0x06,
},
.p_mode_i2c = imx179_1280x720_i2c,
};
static struct imx179_mode_data imx179_640x480 = {
.sensor_mode = {
.res_x = 640,
.res_y = 480,
.active_start_x = 0,
.active_stary_y = 0,
.peak_frame_rate = 30000, /* / _INT2FLOAT_DIVISOR */
.pixel_aspect_ratio = 1000, /* / _INT2FLOAT_DIVISOR */
.pll_multiplier = 11000, /* / _INT2FLOAT_DIVISOR */
.crop_mode = NVC_IMAGER_CROPMODE_NONE,
},
.sensor_dnvc = {
.api_version = NVC_IMAGER_API_DYNAMIC_VER,
.region_start_x = 0,
.region_start_y = 0,
.x_scale = 1,
.y_scale = 1,
.bracket_caps = 1,
.flush_count = 2,
.init_intra_frame_skip = 0,
.ss_intra_frame_skip = 2,
.ss_frame_number = 3,
.coarse_time = 0x09CC,
.max_coarse_diff = 5,
.min_exposure_course = 2,
.max_exposure_course = 0xFFFC,
.diff_integration_time = 110, /* / _INT2FLOAT_DIVISOR */
.line_length = 0x0D70,
.frame_length = 0x09D0,
.min_frame_length = 0x09D0,
.max_frame_length = 0xFFFF,
.min_gain = 1, /* / _INT2FLOAT_DIVISOR */
.max_gain = 16000, /* / _INT2FLOAT_DIVISOR */
.inherent_gain = 1000, /* / _INT2FLOAT_DIVISOR */
.inherent_gain_bin_en = 1000, /* / _INT2FLOAT_DIVISOR */
.support_bin_control = 0,
.support_fast_mode = 0,
.pll_mult = 0xA2,
.pll_div = 0x06,
},
.p_mode_i2c = imx179_640x480_i2c,
};
static struct imx179_mode_data *imx179_mode_table[] = {
&imx179_3280x2464,
&imx179_1640x1232,
&imx179_1920x1080,
&imx179_1280x720,
&imx179_640x480,
};
static int imx179_i2c_rd8(struct imx179_info *info, u16 reg, u8 *val)
{
struct i2c_msg msg[2];
u8 buf[3];
buf[0] = (reg >> 8);
buf[1] = (reg & 0x00FF);
msg[0].addr = info->i2c_client->addr;
msg[0].flags = 0;
msg[0].len = 2;
msg[0].buf = &buf[0];
msg[1].addr = info->i2c_client->addr;
msg[1].flags = I2C_M_RD;
msg[1].len = 1;
msg[1].buf = &buf[2];
*val = 0;
if (i2c_transfer(info->i2c_client->adapter, msg, 2) != 2)
return -EIO;
*val = buf[2];
return 0;
}
static int imx179_i2c_rd16(struct imx179_info *info, u16 reg, u16 *val)
{
struct i2c_msg msg[2];
u8 buf[4];
buf[0] = (reg >> 8);
buf[1] = (reg & 0x00FF);
msg[0].addr = info->i2c_client->addr;
msg[0].flags = 0;
msg[0].len = 2;
msg[0].buf = &buf[0];
msg[1].addr = info->i2c_client->addr;
msg[1].flags = I2C_M_RD;
msg[1].len = 2;
msg[1].buf = &buf[2];
*val = 0;
if (i2c_transfer(info->i2c_client->adapter, msg, 2) != 2)
return -EIO;
*val = (((u16)buf[2] << 8) | (u16)buf[3]);
return 0;
}
static int imx179_i2c_wr8(struct imx179_info *info, u16 reg, u8 val)
{
struct i2c_msg msg;
u8 buf[3];
buf[0] = (reg >> 8);
buf[1] = (reg & 0x00FF);
buf[2] = val;
msg.addr = info->i2c_client->addr;
msg.flags = 0;
msg.len = 3;
msg.buf = &buf[0];
if (i2c_transfer(info->i2c_client->adapter, &msg, 1) != 1)
return -EIO;
return 0;
}
static int imx179_i2c_wr16(struct imx179_info *info, u16 reg, u16 val)
{
struct i2c_msg msg;
u8 buf[4];
buf[0] = (reg >> 8);
buf[1] = (reg & 0x00FF);
buf[2] = (val & 0x00FF);
buf[3] = (val >> 8);
msg.addr = info->i2c_client->addr;
msg.flags = 0;
msg.len = 4;
msg.buf = &buf[0];
if (i2c_transfer(info->i2c_client->adapter, &msg, 1) != 1)
return -EIO;
return 0;
}
static int imx179_i2c_rd_table(struct imx179_info *info,
struct imx179_reg table[])
{
struct imx179_reg *p_table = table;
u8 val;
int err = 0;
while (p_table->addr != IMX179_TABLE_END) {
err = imx179_i2c_rd8(info, p_table->addr, &val);
if (err)
return err;
p_table->val = (u16)val;
p_table++;
}
return err;
}
static int imx179_i2c_wr_blk(struct imx179_info *info, u8 *buf, int len)
{
struct i2c_msg msg;
msg.addr = info->i2c_client->addr;
msg.flags = 0;
msg.len = len;
msg.buf = buf;
if (i2c_transfer(info->i2c_client->adapter, &msg, 1) != 1)
return -EIO;
return 0;
}
static int imx179_i2c_wr_table(struct imx179_info *info,
struct imx179_reg table[])
{
int err;
const struct imx179_reg *next;
const struct imx179_reg *n_next;
u8 *b_ptr = info->i2c_buf;
u16 buf_count = 0;
for (next = table; next->addr != IMX179_TABLE_END; next++) {
if (next->addr == IMX179_TABLE_WAIT_MS) {
msleep(next->val);
continue;
}
if (!buf_count) {
b_ptr = info->i2c_buf;
*b_ptr++ = next->addr >> 8;
*b_ptr++ = next->addr & 0xFF;
buf_count = 2;
}
*b_ptr++ = next->val;
buf_count++;
n_next = next + 1;
if (n_next->addr == next->addr + 1 &&
n_next->addr != IMX179_TABLE_WAIT_MS &&
buf_count < IMX179_SIZEOF_I2C_BUF &&
n_next->addr != IMX179_TABLE_END)
continue;
err = imx179_i2c_wr_blk(info, info->i2c_buf, buf_count);
if (err)
return err;
buf_count = 0;
}
return 0;
}
static inline void imx179_frame_length_reg(struct imx179_reg *regs,
u32 frame_length)
{
regs->addr = 0x0340;
regs->val = (frame_length >> 8) & 0xFF;
(regs + 1)->addr = 0x0341;
(regs + 1)->val = (frame_length) & 0xFF;
}
static inline void imx179_coarse_time_reg(struct imx179_reg *regs,
u32 coarse_time)
{
regs->addr = 0x0202;
regs->val = (coarse_time >> 8) & 0xFF;
(regs + 1)->addr = 0x0203;
(regs + 1)->val = (coarse_time) & 0xFF;
}
static inline void imx179_gain_reg(struct imx179_reg *regs, u32 gain)
{
regs->addr = 0x0205;
regs->val = gain & 0xFF;
}
static int imx179_bin_wr(struct imx179_info *info, u8 enable)
{
int err = 0;
if (enable == info->bin_en)
return 0;
if (!info->mode_valid || !imx179_mode_table[info->mode_index]->
sensor_dnvc.support_bin_control)
return -EINVAL;
if (!err)
info->bin_en = enable;
dev_dbg(&info->i2c_client->dev, "%s bin_en=%x err=%d\n",
__func__, info->bin_en, err);
return err;
}
static int imx179_exposure_wr(struct imx179_info *info,
struct nvc_imager_bayer *mode)
{
struct imx179_reg reg_list[8];
int err;
reg_list[0].addr = 0x0104;
reg_list[0].val = 0x01;
imx179_frame_length_reg(reg_list+1, mode->frame_length);
imx179_coarse_time_reg(reg_list + 3, mode->coarse_time);
imx179_gain_reg(reg_list + 5, mode->gain);
reg_list[6].addr = 0x0104;
reg_list[6].val = 0x00;
reg_list[7].addr = IMX179_TABLE_END;
err = imx179_i2c_wr_table(info, reg_list);
if (!err)
err = imx179_bin_wr(info, mode->bin_en);
return err;
}
static int imx179_gain_wr(struct imx179_info *info, u32 gain)
{
int err;
gain &= 0xFF;
err = imx179_i2c_wr16(info, 0x0205, (u16)gain);
return err;
}
static int imx179_gain_rd(struct imx179_info *info, u32 *gain)
{
int err;
*gain = 0;
err = imx179_i2c_rd8(info, 0x0205, (u8 *)gain);
return err;
}
static int imx179_group_hold_wr(struct imx179_info *info,
struct nvc_imager_ae *ae)
{
int err;
bool groupHoldEnable;
struct imx179_reg reg_list[6];
int count = 0;
groupHoldEnable = ae->gain_enable |
ae->frame_length_enable |
ae->coarse_time_enable;
if (groupHoldEnable) {
err = imx179_i2c_wr8(info, 0x0104, 1);
if (err) {
dev_err(&info->i2c_client->dev,
"Error: %s fail to enable grouphold\n",
__func__);
return err;
}
}
if (ae->gain_enable) {
imx179_gain_reg(reg_list + count, ae->gain);
count += 1;
}
if (ae->coarse_time_enable) {
imx179_coarse_time_reg(reg_list + count, ae->coarse_time);
count += 2;
}
if (ae->frame_length_enable) {
imx179_frame_length_reg(reg_list + count, ae->frame_length);
count += 2;
}
reg_list[count].addr = IMX179_TABLE_END;
err = imx179_i2c_wr_table(info, reg_list);
if (err) {
dev_err(&info->i2c_client->dev, "Error: %s i2c wr_table fail\n",
__func__);
}
if (groupHoldEnable) {
err = imx179_i2c_wr8(info, 0x0104, 0);
if (err) {
dev_err(&info->i2c_client->dev,
"Error: %s fail to release grouphold\n",
__func__);
}
}
return err;
}
static int imx179_test_pattern_wr(struct imx179_info *info, unsigned pattern)
{
if (pattern >= ARRAY_SIZE(test_patterns))
return -EINVAL;
return imx179_i2c_wr_table(info, test_patterns[pattern]);
}
static int imx179_set_flash_output(struct imx179_info *info)
{
struct imx179_flash_config *fcfg;
u8 val = 0;
int ret = 0;
if (!info->pdata)
return 0;
fcfg = &info->pdata->flash_cap;
if (fcfg->xvs_trigger_enabled)
val |= 0x0c;
if (fcfg->sdo_trigger_enabled)
val |= 0x02;
dev_dbg(&info->i2c_client->dev, "%s: %02x\n", __func__, val);
/* disable all flash pulse output */
ret = imx179_i2c_wr8(info, 0x304A, 0);
/* config XVS/SDO pin output mode */
ret |= imx179_i2c_wr8(info, 0x3240, val);
/* set the control pulse width settings - Gain + Step
* Pulse width(sec) = 64 * 2^(Gain) * (Step + 1) / Logic Clk
* Logic Clk = ExtClk * PLL Multipiler / Pre_Div / Post_Div
* / Logic Clk Division Ratio
* Logic Clk Division Ratio = 5 @4lane, 10 @2lane, 20 @1lane
*/
ret |= imx179_i2c_wr8(info, 0x307C, 0x07);
ret |= imx179_i2c_wr8(info, 0x307D, 0x3F);
return ret;
}
static void imx179_get_flash_cap(struct imx179_info *info)
{
struct nvc_imager_cap *fcap = info->cap;
struct imx179_flash_config *fcfg;
if (!info->pdata)
return;
fcfg = &info->pdata->flash_cap;
fcap->flash_control_enabled =
fcfg->xvs_trigger_enabled | fcfg->sdo_trigger_enabled;
fcap->adjustable_flash_timing = fcfg->adjustable_flash_timing;
}
static int imx179_flash_control(
struct imx179_info *info, union nvc_imager_flash_control *fm)
{
int ret;
u8 f_cntl;
u8 f_tim;
if (!info->pdata)
return -EFAULT;
ret = imx179_i2c_wr8(info, 0x304A, 0);
f_tim = 0;
f_cntl = 0;
if (fm->settings.enable) {
if (fm->settings.edge_trig_en) {
f_cntl |= 0x10;
if (fm->settings.start_edge)
f_tim |= 0x08;
if (fm->settings.repeat)
f_tim |= 0x04;
f_tim |= fm->settings.delay_frm & 0x03;
} else
f_cntl |= 0x20;
}
ret |= imx179_i2c_wr8(info, 0x307B, f_tim);
ret |= imx179_i2c_wr8(info, 0x304A, f_cntl);
dev_dbg(&info->i2c_client->dev,
"%s: %04x %02x %02x\n", __func__, fm->mode, f_tim, f_cntl);
return ret;
}
static int imx179_gpio_rd(struct imx179_info *info,
enum imx179_gpio i)
{
int val = -EINVAL;
if (info->gpio[i].flag) {
val = gpio_get_value_cansleep(info->gpio[i].gpio);
if (val)
val = 1;
dev_dbg(&info->i2c_client->dev, "%s %u %d\n",
__func__, info->gpio[i].gpio, val);
if (!info->gpio[i].active_high)
val = !val;
val &= 1;
}
return val; /* return read value or error */
}
static int imx179_gpio_wr(struct imx179_info *info,
enum imx179_gpio i,
int val) /* val: 0=deassert, 1=assert */
{
int err = -EINVAL;
if (info->gpio[i].flag) {
if (val)
val = 1;
if (!info->gpio[i].active_high)
val = !val;
val &= 1;
err = val;
gpio_set_value_cansleep(info->gpio[i].gpio, val);
dev_dbg(&info->i2c_client->dev, "%s %u %d\n",
__func__, info->gpio[i].gpio, val);
}
return err; /* return value written or error */
}
static int imx179_gpio_pwrdn(struct imx179_info *info, int val)
{
int prev_val;
prev_val = imx179_gpio_rd(info, IMX179_GPIO_PWDN);
if (prev_val < 0)
return 1; /* assume PWRDN hardwired deasserted */
if (val == prev_val)
return 0; /* no change */
imx179_gpio_wr(info, IMX179_GPIO_PWDN, val);
return 1; /* return state change */
}
static int imx179_gpio_reset(struct imx179_info *info, int val)
{
int err = 0;
if (val) {
if (!info->reset_flag) {
info->reset_flag = true;
err = imx179_gpio_wr(info, IMX179_GPIO_RESET, 1);
if (err < 0)
return 0; /* flag no reset */
usleep_range(1000, 1500);
imx179_gpio_wr(info, IMX179_GPIO_RESET, 0);
msleep(IMX179_STARTUP_DELAY_MS); /* startup delay */
err = 1; /* flag that a reset was done */
}
} else {
info->reset_flag = false;
}
return err;
}
static void imx179_gpio_able(struct imx179_info *info, int val)
{
if (val)
imx179_gpio_wr(info, IMX179_GPIO_GP1, val);
else
imx179_gpio_wr(info, IMX179_GPIO_GP1, val);
}
static void imx179_gpio_exit(struct imx179_info *info)
{
unsigned i;
for (i = 0; i < ARRAY_SIZE(imx179_gpios); i++) {
if (info->gpio[i].flag && info->gpio[i].own) {
gpio_free(info->gpio[i].gpio);
info->gpio[i].own = false;
}
}
}
static void imx179_gpio_init(struct imx179_info *info)
{
char label[32];
unsigned long flags;
unsigned type;
unsigned i;
unsigned j;
int err;
for (i = 0; i < ARRAY_SIZE(imx179_gpios); i++)
info->gpio[i].flag = false;
if (!info->pdata->gpio_count || !info->pdata->gpio)
return;
for (i = 0; i < ARRAY_SIZE(imx179_gpios); i++) {
type = imx179_gpios[i].gpio_type;
for (j = 0; j < info->pdata->gpio_count; j++) {
if (type == info->pdata->gpio[j].gpio_type)
break;
}
if (j == info->pdata->gpio_count)
continue;
info->gpio[type].gpio = info->pdata->gpio[j].gpio;
info->gpio[type].flag = true;
if (imx179_gpios[i].use_flags) {
flags = imx179_gpios[i].flags;
info->gpio[type].active_high =
imx179_gpios[i].active_high;
} else {
info->gpio[type].active_high =
info->pdata->gpio[j].active_high;
if (info->gpio[type].active_high)
flags = GPIOF_OUT_INIT_LOW;
else
flags = GPIOF_OUT_INIT_HIGH;
}
if (!info->pdata->gpio[j].init_en)
continue;
snprintf(label, sizeof(label), "imx179_%u_%s",
info->pdata->num, imx179_gpios[i].label);
err = gpio_request_one(info->gpio[type].gpio, flags, label);
if (err) {
dev_err(&info->i2c_client->dev, "%s ERR %s %u\n",
__func__, label, info->gpio[type].gpio);
} else {
info->gpio[type].own = true;
dev_dbg(&info->i2c_client->dev, "%s %s %u\n",
__func__, label, info->gpio[type].gpio);
}
}
}
static void imx179_mclk_disable(struct imx179_info *info)
{
dev_dbg(&info->i2c_client->dev, "%s: disable MCLK\n", __func__);
clk_disable_unprepare(info->mclk);
}
static int imx179_mclk_enable(struct imx179_info *info)
{
int err;
unsigned long mclk_init_rate =
nvc_imager_get_mclk(info->cap, &imx179_dflt_cap, 0);
dev_dbg(&info->i2c_client->dev, "%s: enable MCLK with %lu Hz\n",
__func__, mclk_init_rate);
err = clk_set_rate(info->mclk, mclk_init_rate);
if (!err)
err = clk_prepare_enable(info->mclk);
return err;
}
static int imx179_vreg_dis_all(struct imx179_info *info)
{
int err;
if (!info->pdata || !info->pdata->power_off)
return -EFAULT;
err = info->pdata->power_off(info->vreg);
imx179_mclk_disable(info);
return err;
}
static int imx179_vreg_en_all(struct imx179_info *info)
{
int err = 0;
if (!info->pdata || !info->pdata->power_on)
return -EFAULT;
err = imx179_mclk_enable(info);
if (err)
return err;
err = info->pdata->power_on(info->vreg);
if (err < 0)
imx179_mclk_disable(info);
return err;
}
static void imx179_vreg_exit(struct imx179_info *info)
{
unsigned i;
for (i = 0; i < ARRAY_SIZE(imx179_vregs); i++) {
regulator_put(info->vreg[i].vreg);
info->vreg[i].vreg = NULL;
}
}
static int imx179_vreg_init(struct imx179_info *info)
{
unsigned i;
unsigned j;
int err = 0;
for (i = 0; i < ARRAY_SIZE(imx179_vregs); i++) {
j = imx179_vregs[i].vreg_num;
info->vreg[j].vreg_name = imx179_vregs[i].vreg_name;
info->vreg[j].vreg_flag = false;
info->vreg[j].vreg = regulator_get(&info->i2c_client->dev,
info->vreg[j].vreg_name);
if (IS_ERR(info->vreg[j].vreg)) {
dev_dbg(&info->i2c_client->dev, "%s %s ERR: %d\n",
__func__, info->vreg[j].vreg_name,
(int)info->vreg[j].vreg);
err |= PTR_ERR(info->vreg[j].vreg);
info->vreg[j].vreg = NULL;
} else {
dev_dbg(&info->i2c_client->dev, "%s: %s\n",
__func__, info->vreg[j].vreg_name);
}
}
return err;
}
static int imx179_pm_wr(struct imx179_info *info, int pwr)
{
int ret;
int err = 0;
if ((info->pdata->cfg & (NVC_CFG_OFF2STDBY | NVC_CFG_BOOT_INIT)) &&
(pwr == NVC_PWR_OFF ||
pwr == NVC_PWR_STDBY_OFF))
pwr = NVC_PWR_STDBY;
if (pwr == info->pwr_dev)
return 0;
switch (pwr) {
case NVC_PWR_OFF_FORCE:
case NVC_PWR_OFF:
case NVC_PWR_STDBY_OFF:
imx179_gpio_pwrdn(info, 1);
err = imx179_vreg_dis_all(info);
imx179_gpio_able(info, 0);
imx179_gpio_reset(info, 0);
info->mode_valid = false;
info->bin_en = 0;
break;
case NVC_PWR_STDBY:
imx179_gpio_pwrdn(info, 1);
err = imx179_vreg_en_all(info);
imx179_gpio_able(info, 1);
break;
case NVC_PWR_COMM:
case NVC_PWR_ON:
if (info->pwr_dev != NVC_PWR_ON &&
info->pwr_dev != NVC_PWR_COMM)
imx179_gpio_pwrdn(info, 1);
err = imx179_vreg_en_all(info);
imx179_gpio_able(info, 1);
ret = imx179_gpio_pwrdn(info, 0);
ret &= !imx179_gpio_reset(info, 1);
if (ret) /* if no reset && pwrdn changed states then delay */
msleep(IMX179_STARTUP_DELAY_MS);
break;
default:
err = -EINVAL;
break;
}
if (err < 0) {
dev_err(&info->i2c_client->dev, "%s err %d\n", __func__, err);
pwr = NVC_PWR_ERR;
}
info->pwr_dev = pwr;
dev_dbg(&info->i2c_client->dev, "%s pwr_dev=%d\n",
__func__, info->pwr_dev);
if (err > 0)
return 0;
return err;
}
static int imx179_pm_wr_s(struct imx179_info *info, int pwr)
{
int err1 = 0;
int err2 = 0;
if ((info->s_mode == NVC_SYNC_OFF) ||
(info->s_mode == NVC_SYNC_MASTER) ||
(info->s_mode == NVC_SYNC_STEREO))
err1 = imx179_pm_wr(info, pwr);
if ((info->s_mode == NVC_SYNC_SLAVE) ||
(info->s_mode == NVC_SYNC_STEREO))
err2 = imx179_pm_wr(info->s_info, pwr);
return err1 | err2;
}
static int imx179_pm_api_wr(struct imx179_info *info, int pwr)
{
int err = 0;
if (!pwr || (pwr > NVC_PWR_ON))
return 0;
if (pwr > info->pwr_dev)
err = imx179_pm_wr_s(info, pwr);
if (!err)
info->pwr_api = pwr;
else
info->pwr_api = NVC_PWR_ERR;
if (info->pdata->cfg & NVC_CFG_NOERR)
return 0;
return err;
}
static int imx179_pm_dev_wr(struct imx179_info *info, int pwr)
{
if (pwr < info->pwr_api)
pwr = info->pwr_api;
if (info->mode_enable)
pwr = NVC_PWR_ON;
return imx179_pm_wr(info, pwr);
}
static void imx179_pm_exit(struct imx179_info *info)
{
imx179_pm_wr(info, NVC_PWR_OFF_FORCE);
imx179_vreg_exit(info);
imx179_gpio_exit(info);
}
static void imx179_pm_init(struct imx179_info *info)
{
imx179_gpio_init(info);
imx179_vreg_init(info);
}
static int imx179_reset(struct imx179_info *info, u32 level)
{
int err;
if (level == NVC_RESET_SOFT) {
err = imx179_pm_wr(info, NVC_PWR_COMM);
err |= imx179_i2c_wr8(info, 0x0103, 0x01); /* SW reset */
} else {
err = imx179_pm_wr(info, NVC_PWR_OFF_FORCE);
}
err |= imx179_pm_wr(info, info->pwr_api);
return err;
}
static int imx179_dev_id(struct imx179_info *info)
{
u16 val = 0;
unsigned i;
int err;
dev_dbg(&info->i2c_client->dev, "%s +++++\n",
__func__);
imx179_pm_dev_wr(info, NVC_PWR_COMM);
dev_dbg(&info->i2c_client->dev, "DUCK:%s:%d\n",
__func__, __LINE__);
err = imx179_i2c_rd16(info, IMX179_ID_ADDRESS, &val);
if (!err) {
dev_dbg(&info->i2c_client->dev, "%s found devId: %x\n",
__func__, val);
info->sdata.sensor_id_minor = 0;
for (i = 0; i < ARRAY_SIZE(imx179_ids); i++) {
if (val == imx179_ids[i]) {
info->sdata.sensor_id_minor = val;
break;
}
}
if (!info->sdata.sensor_id_minor) {
err = -ENODEV;
dev_dbg(&info->i2c_client->dev, "%s No devId match\n",
__func__);
}
}
imx179_pm_dev_wr(info, NVC_PWR_OFF);
dev_dbg(&info->i2c_client->dev, "%s -----\n",
__func__);
return err;
}
static int imx179_mode_able(struct imx179_info *info, bool mode_enable)
{
u8 val;
int err;
if (mode_enable)
val = IMX179_STREAM_ENABLE;
else
val = IMX179_STREAM_DISABLE;
err = imx179_i2c_wr8(info, IMX179_STREAM_CONTROL_REG, val);
if (!err) {
info->mode_enable = mode_enable;
dev_dbg(&info->i2c_client->dev, "%s streaming=%x\n",
__func__, info->mode_enable);
if (!mode_enable)
imx179_pm_dev_wr(info, NVC_PWR_OFF);
}
msleep(IMX179_WAIT_MS);
return err;
}
static int imx179_mode_rd(struct imx179_info *info,
s32 res_x,
s32 res_y,
u32 *index)
{
int i;
if (!res_x && !res_y) {
*index = info->cap->preferred_mode_index;
return 0;
}
for (i = 0; i < IMX179_NUM_MODES; i++) {
if ((res_x == imx179_mode_table[i]->sensor_mode.res_x) &&
(res_y == imx179_mode_table[i]->sensor_mode.res_y)) {
break;
}
}
if (i == IMX179_NUM_MODES) {
dev_err(&info->i2c_client->dev,
"%s invalid resolution: %dx%d\n",
__func__, res_x, res_y);
return -EINVAL;
}
*index = i;
return 0;
}
static int imx179_mode_wr_full(struct imx179_info *info, u32 mode_index)
{
int err;
imx179_pm_dev_wr(info, NVC_PWR_ON);
imx179_bin_wr(info, 0);
err = imx179_i2c_wr_table(info,
imx179_mode_table[mode_index]->p_mode_i2c);
if (!err) {
info->mode_index = mode_index;
info->mode_valid = true;
} else {
info->mode_valid = false;
}
return err;
}
static int imx179_mode_wr(struct imx179_info *info,
struct nvc_imager_bayer *mode)
{
u32 mode_index;
int err;
err = imx179_mode_rd(info, mode->res_x, mode->res_y, &mode_index);
if (err < 0)
return err;
if (!mode->res_x && !mode->res_y) {
if (mode->frame_length || mode->coarse_time || mode->gain) {
/* write exposure only */
err = imx179_exposure_wr(info, mode);
return err;
} else {
/* turn off streaming */
err = imx179_mode_able(info, false);
return err;
}
}
if (!info->mode_valid || (info->mode_index != mode_index))
err = imx179_mode_wr_full(info, mode_index);
else
dev_dbg(&info->i2c_client->dev, "%s short mode\n", __func__);
err |= imx179_exposure_wr(info, mode);
if (err < 0) {
info->mode_valid = false;
goto imx179_mode_wr_err;
}
err = imx179_set_flash_output(info);
err |= imx179_mode_able(info, true);
if (err < 0)
goto imx179_mode_wr_err;
return 0;
imx179_mode_wr_err:
if (!info->mode_enable)
imx179_pm_dev_wr(info, NVC_PWR_STDBY);
return err;
}
static int imx179_param_rd(struct imx179_info *info, unsigned long arg)
{
struct nvc_param params;
struct imx179_reg *p_i2c_table;
const void *data_ptr;
u32 data_size = 0;
u32 u32val;
int err;
if (copy_from_user(&params,
(const void __user *)arg,
sizeof(struct nvc_param))) {
dev_err(&info->i2c_client->dev,
"%s copy_from_user err line %d\n", __func__, __LINE__);
return -EFAULT;
}
if (info->s_mode == NVC_SYNC_SLAVE)
info = info->s_info;
switch (params.param) {
case NVC_PARAM_GAIN:
imx179_pm_dev_wr(info, NVC_PWR_COMM);
err = imx179_gain_rd(info, &u32val);
imx179_pm_dev_wr(info, NVC_PWR_OFF);
dev_dbg(&info->i2c_client->dev, "%s GAIN: %u err: %d\n",
__func__, u32val, err);
if (err)
return err;
data_ptr = &u32val;
data_size = sizeof(u32val);
break;
case NVC_PARAM_STEREO_CAP:
if (info->s_info != NULL)
err = 0;
else
err = -ENODEV;
dev_dbg(&info->i2c_client->dev, "%s STEREO_CAP: %d\n",
__func__, err);
data_ptr = &err;
data_size = sizeof(err);
break;
case NVC_PARAM_STEREO:
dev_dbg(&info->i2c_client->dev, "%s STEREO: %d\n",
__func__, info->s_mode);
data_ptr = &info->s_mode;
data_size = sizeof(info->s_mode);
break;
case NVC_PARAM_STS:
err = imx179_dev_id(info);
dev_dbg(&info->i2c_client->dev, "%s STS: %d\n",
__func__, err);
data_ptr = &err;
data_size = sizeof(err);
break;
case NVC_PARAM_DEV_ID:
if (!info->sdata.sensor_id_minor)
imx179_dev_id(info);
data_ptr = &info->sdata.sensor_id;
data_size = sizeof(info->sdata.sensor_id) * 2;
dev_dbg(&info->i2c_client->dev, "%s DEV_ID: %x-%x\n",
__func__, info->sdata.sensor_id,
info->sdata.sensor_id_minor);
break;
case NVC_PARAM_SENSOR_TYPE:
data_ptr = &info->sdata.sensor_type;
data_size = sizeof(info->sdata.sensor_type);
dev_dbg(&info->i2c_client->dev, "%s SENSOR_TYPE: %d\n",
__func__, info->sdata.sensor_type);
break;
case NVC_PARAM_FOCAL_LEN:
data_ptr = &info->sdata.focal_len;
data_size = sizeof(info->sdata.focal_len);
dev_dbg(&info->i2c_client->dev, "%s FOCAL_LEN: %u\n",
__func__, info->sdata.focal_len);
break;
case NVC_PARAM_MAX_APERTURE:
data_ptr = &info->sdata.max_aperture;
data_size = sizeof(info->sdata.max_aperture);
dev_dbg(&info->i2c_client->dev, "%s MAX_APERTURE: %u\n",
__func__, info->sdata.max_aperture);
break;
case NVC_PARAM_FNUMBER:
data_ptr = &info->sdata.fnumber;
data_size = sizeof(info->sdata.fnumber);
dev_dbg(&info->i2c_client->dev, "%s FNUMBER: %u\n",
__func__, info->sdata.fnumber);
break;
case NVC_PARAM_VIEW_ANGLE_H:
data_ptr = &info->sdata.view_angle_h;
data_size = sizeof(info->sdata.view_angle_h);
dev_dbg(&info->i2c_client->dev, "%s VIEW_ANGLE_H: %u\n",
__func__, info->sdata.view_angle_h);
break;
case NVC_PARAM_VIEW_ANGLE_V:
data_ptr = &info->sdata.view_angle_v;
data_size = sizeof(info->sdata.view_angle_v);
dev_dbg(&info->i2c_client->dev, "%s VIEW_ANGLE_V: %u\n",
__func__, info->sdata.view_angle_v);
break;
case NVC_PARAM_I2C:
dev_dbg(&info->i2c_client->dev, "%s I2C\n", __func__);
if (params.sizeofvalue > IMX179_I2C_TABLE_MAX_ENTRIES) {
dev_err(&info->i2c_client->dev,
"%s NVC_PARAM_I2C request size too large\n",
__func__);
return -EINVAL;
}
p_i2c_table = kzalloc(sizeof(params.sizeofvalue), GFP_KERNEL);
if (p_i2c_table == NULL) {
pr_err("%s: kzalloc error\n", __func__);
return -ENOMEM;
}
if (copy_from_user(p_i2c_table,
(const void __user *)params.p_value,
params.sizeofvalue)) {
dev_err(&info->i2c_client->dev,
"%s copy_from_user err line %d\n",
__func__, __LINE__);
kfree(p_i2c_table);
return -EINVAL;
}
imx179_pm_dev_wr(info, NVC_PWR_COMM);
err = imx179_i2c_rd_table(info, p_i2c_table);
imx179_pm_dev_wr(info, NVC_PWR_OFF);
if (copy_to_user((void __user *)params.p_value,
p_i2c_table,
params.sizeofvalue)) {
dev_err(&info->i2c_client->dev,
"%s copy_to_user err line %d\n",
__func__, __LINE__);
err = -EINVAL;
}
kfree(p_i2c_table);
return err;
default:
dev_dbg(&info->i2c_client->dev,
"%s unsupported parameter: %d\n",
__func__, params.param);
return -EINVAL;
}
if (params.sizeofvalue < data_size) {
dev_err(&info->i2c_client->dev,
"%s data size mismatch %d != %d Param: %d\n",
__func__, params.sizeofvalue, data_size, params.param);
return -EINVAL;
}
if (copy_to_user((void __user *)params.p_value,
data_ptr,
data_size)) {
dev_err(&info->i2c_client->dev,
"%s copy_to_user err line %d\n", __func__, __LINE__);
return -EFAULT;
}
return 0;
}
static int imx179_param_wr_s(struct imx179_info *info,
struct nvc_param *params,
u32 u32val)
{
struct imx179_reg *p_i2c_table;
u8 u8val;
int err;
u8val = (u8)u32val;
switch (params->param) {
case NVC_PARAM_GAIN:
dev_dbg(&info->i2c_client->dev, "%s GAIN: %u\n",
__func__, u32val);
imx179_pm_dev_wr(info, NVC_PWR_COMM);
err = imx179_gain_wr(info, u32val);
if (err) {
dev_err(&info->i2c_client->dev, "Error: %s SET GAIN ERR",
__func__);
}
imx179_pm_dev_wr(info, NVC_PWR_STDBY);
return err;
case NVC_PARAM_RESET:
err = imx179_reset(info, u32val);
dev_dbg(&info->i2c_client->dev, "%s RESET=%d err=%d\n",
__func__, u32val, err);
return err;
case NVC_PARAM_TESTMODE:
dev_dbg(&info->i2c_client->dev, "%s TESTMODE: %u\n",
__func__, (unsigned)u8val);
if (u8val)
u32val = info->test_pattern;
else
u32val = 0;
imx179_pm_dev_wr(info, NVC_PWR_ON);
err = imx179_test_pattern_wr(info, u32val);
if (!u8val)
imx179_pm_dev_wr(info, NVC_PWR_OFF);
return err;
case NVC_PARAM_TEST_PATTERN:
dev_dbg(&info->i2c_client->dev, "%s TEST_PATTERN: %d\n",
__func__, u32val);
info->test_pattern = u32val;
return 0;
case NVC_PARAM_SELF_TEST:
err = imx179_dev_id(info);
dev_dbg(&info->i2c_client->dev, "%s SELF_TEST: %d\n",
__func__, err);
return err;
case NVC_PARAM_I2C:
dev_dbg(&info->i2c_client->dev, "%s I2C\n", __func__);
if (params->sizeofvalue > IMX179_I2C_TABLE_MAX_ENTRIES) {
dev_err(&info->i2c_client->dev,
"%s NVC_PARAM_I2C request size too large\n",
__func__);
return -EINVAL;
}
p_i2c_table = kzalloc(sizeof(params->sizeofvalue), GFP_KERNEL);
if (p_i2c_table == NULL) {
dev_err(&info->i2c_client->dev,
"%s kzalloc err line %d\n",
__func__, __LINE__);
return -ENOMEM;
}
if (copy_from_user(p_i2c_table,
(const void __user *)params->p_value,
params->sizeofvalue)) {
dev_err(&info->i2c_client->dev,
"%s copy_from_user err line %d\n",
__func__, __LINE__);
kfree(p_i2c_table);
return -EFAULT;
}
imx179_pm_dev_wr(info, NVC_PWR_ON);
err = imx179_i2c_wr_table(info, p_i2c_table);
kfree(p_i2c_table);
return err;
case NVC_PARAM_SET_SENSOR_FLASH_MODE:
{
union nvc_imager_flash_control fm;
if (copy_from_user(&fm,
(const void __user *)params->p_value, sizeof(fm))) {
pr_info("%s:fail set flash mode.\n", __func__);
return -EFAULT;
}
return imx179_flash_control(info, &fm);
}
default:
dev_dbg(&info->i2c_client->dev,
"%s unsupported parameter: %d\n",
__func__, params->param);
return -EINVAL;
}
}
static int imx179_param_wr(struct imx179_info *info, unsigned long arg)
{
struct nvc_param params;
u8 u8val;
u32 u32val;
int err = 0;
if (copy_from_user(&params, (const void __user *)arg,
sizeof(struct nvc_param))) {
dev_err(&info->i2c_client->dev,
"%s copy_from_user err line %d\n", __func__, __LINE__);
return -EFAULT;
}
if (copy_from_user(&u32val, (const void __user *)params.p_value,
sizeof(u32val))) {
dev_err(&info->i2c_client->dev, "%s %d copy_from_user err\n",
__func__, __LINE__);
return -EFAULT;
}
u8val = (u8)u32val;
/* parameters independent of sync mode */
switch (params.param) {
case NVC_PARAM_STEREO:
dev_dbg(&info->i2c_client->dev, "%s STEREO: %d\n",
__func__, u8val);
if (u8val == info->s_mode)
return 0;
switch (u8val) {
case NVC_SYNC_OFF:
info->s_mode = u8val;
if (info->s_info != NULL) {
info->s_info->s_mode = u8val;
imx179_pm_wr(info->s_info, NVC_PWR_OFF);
}
break;
case NVC_SYNC_MASTER:
info->s_mode = u8val;
if (info->s_info != NULL)
info->s_info->s_mode = u8val;
break;
case NVC_SYNC_SLAVE:
if (info->s_info != NULL) {
/* sync power */
info->s_info->pwr_api = info->pwr_api;
err = imx179_pm_wr(info->s_info,
info->pwr_dev);
if (!err) {
info->s_mode = u8val;
info->s_info->s_mode = u8val;
} else {
if (info->s_mode != NVC_SYNC_STEREO)
imx179_pm_wr(info->s_info,
NVC_PWR_OFF);
err = -EIO;
}
} else {
err = -EINVAL;
}
break;
case NVC_SYNC_STEREO:
if (info->s_info != NULL) {
/* sync power */
info->s_info->pwr_api = info->pwr_api;
err = imx179_pm_wr(info->s_info,
info->pwr_dev);
if (!err) {
info->s_mode = u8val;
info->s_info->s_mode = u8val;
} else {
if (info->s_mode != NVC_SYNC_SLAVE)
imx179_pm_wr(info->s_info,
NVC_PWR_OFF);
err = -EIO;
}
} else {
err = -EINVAL;
}
break;
default:
err = -EINVAL;
}
if (info->pdata->cfg & NVC_CFG_NOERR)
return 0;
return err;
case NVC_PARAM_GROUP_HOLD:
{
struct nvc_imager_ae ae;
dev_dbg(&info->i2c_client->dev, "%s GROUP_HOLD\n",
__func__);
if (copy_from_user(&ae, (const void __user *)params.p_value,
sizeof(struct nvc_imager_ae))) {
dev_err(&info->i2c_client->dev, "Error: %s %d copy_from_user err\n",
__func__, __LINE__);
return -EFAULT;
}
imx179_pm_dev_wr(info, NVC_PWR_COMM);
err = imx179_group_hold_wr(info, &ae);
imx179_pm_dev_wr(info, NVC_PWR_STDBY);
return err;
}
default:
/* parameters dependent on sync mode */
switch (info->s_mode) {
case NVC_SYNC_OFF:
case NVC_SYNC_MASTER:
return imx179_param_wr_s(info, &params, u32val);
case NVC_SYNC_SLAVE:
return imx179_param_wr_s(info->s_info, &params,
u32val);
case NVC_SYNC_STEREO:
err = imx179_param_wr_s(info, &params, u32val);
if (!(info->pdata->cfg & NVC_CFG_SYNC_I2C_MUX))
err |= imx179_param_wr_s(info->s_info,
&params, u32val);
return err;
default:
dev_err(&info->i2c_client->dev, "%s %d internal err\n",
__func__, __LINE__);
return -EINVAL;
}
}
}
static long imx179_ioctl(struct file *file,
unsigned int cmd,
unsigned long arg)
{
struct imx179_info *info = file->private_data;
struct nvc_imager_bayer mode;
struct nvc_imager_mode_list mode_list;
struct nvc_imager_mode mode_table[IMX179_NUM_MODES];
struct nvc_imager_dnvc dnvc;
const void *data_ptr;
s32 num_modes;
u32 i;
int pwr;
int err;
switch (cmd) {
case NVC_IOCTL_PARAM_WR:
err = imx179_param_wr(info, arg);
return err;
case NVC_IOCTL_PARAM_RD:
err = imx179_param_rd(info, arg);
return err;
case NVC_IOCTL_DYNAMIC_RD:
if (copy_from_user(&dnvc, (const void __user *)arg,
sizeof(struct nvc_imager_dnvc))) {
dev_err(&info->i2c_client->dev,
"%s copy_from_user err line %d\n",
__func__, __LINE__);
return -EFAULT;
}
dev_dbg(&info->i2c_client->dev, "%s DYNAMIC_RD x=%d y=%d\n",
__func__, dnvc.res_x, dnvc.res_y);
err = imx179_mode_rd(info, dnvc.res_x, dnvc.res_y, &i);
if (err)
return -EINVAL;
if (dnvc.p_mode) {
if (copy_to_user((void __user *)dnvc.p_mode,
&imx179_mode_table[i]->sensor_mode,
sizeof(struct nvc_imager_mode))) {
dev_err(&info->i2c_client->dev,
"%s copy_to_user err line %d\n",
__func__, __LINE__);
return -EFAULT;
}
}
if (dnvc.p_dnvc) {
if (copy_to_user((void __user *)dnvc.p_dnvc,
&imx179_mode_table[i]->sensor_dnvc,
sizeof(struct nvc_imager_dynamic_nvc))) {
dev_err(&info->i2c_client->dev,
"%s copy_to_user err line %d\n",
__func__, __LINE__);
return -EFAULT;
}
}
return 0;
case NVC_IOCTL_MODE_WR:
if (copy_from_user(&mode, (const void __user *)arg,
sizeof(struct nvc_imager_bayer))) {
dev_err(&info->i2c_client->dev,
"%s copy_from_user err line %d\n",
__func__, __LINE__);
return -EFAULT;
}
dev_dbg(&info->i2c_client->dev,
"%s MODE_WR x=%d y=%d coarse=%u frame=%u gain=%u\n",
__func__, mode.res_x, mode.res_y,
mode.coarse_time, mode.frame_length, mode.gain);
err = imx179_mode_wr(info, &mode);
return err;
case NVC_IOCTL_MODE_RD:
/*
* Return a list of modes that sensor bayer supports.
* If called with a NULL ptr to pModes,
* then it just returns the count.
*/
dev_dbg(&info->i2c_client->dev, "%s MODE_RD n=%d\n",
__func__, IMX179_NUM_MODES);
if (copy_from_user(&mode_list, (const void __user *)arg,
sizeof(struct nvc_imager_mode_list))) {
dev_err(&info->i2c_client->dev,
"%s copy_from_user err line %d\n",
__func__, __LINE__);
return -EFAULT;
}
num_modes = IMX179_NUM_MODES;
if (mode_list.p_num_mode != NULL) {
if (copy_to_user((void __user *)mode_list.p_num_mode,
&num_modes, sizeof(num_modes))) {
dev_err(&info->i2c_client->dev,
"%s copy_to_user err line %d\n",
__func__, __LINE__);
return -EFAULT;
}
}
if (mode_list.p_modes != NULL) {
for (i = 0; i < IMX179_NUM_MODES; i++) {
mode_table[i] =
imx179_mode_table[i]->sensor_mode;
}
if (copy_to_user((void __user *)mode_list.p_modes,
(const void *)&mode_table,
sizeof(mode_table))) {
dev_err(&info->i2c_client->dev,
"%s copy_to_user err line %d\n",
__func__, __LINE__);
return -EFAULT;
}
}
return 0;
case NVC_IOCTL_PWR_WR:
/* This is a Guaranteed Level of Service (GLOS) call */
pwr = (int)arg * 2;
dev_dbg(&info->i2c_client->dev, "%s PWR_WR: %d\n",
__func__, pwr);
err = imx179_pm_api_wr(info, pwr);
return err;
case NVC_IOCTL_PWR_RD:
if (info->s_mode == NVC_SYNC_SLAVE)
pwr = info->s_info->pwr_api / 2;
else
pwr = info->pwr_api / 2;
dev_dbg(&info->i2c_client->dev, "%s PWR_RD: %d\n",
__func__, pwr);
if (copy_to_user((void __user *)arg, (const void *)&pwr,
sizeof(pwr))) {
dev_err(&info->i2c_client->dev,
"%s copy_to_user err line %d\n",
__func__, __LINE__);
return -EFAULT;
}
return 0;
case NVC_IOCTL_CAPS_RD:
dev_dbg(&info->i2c_client->dev, "%s CAPS_RD n=%d\n",
__func__, sizeof(imx179_dflt_cap));
data_ptr = info->cap;
if (copy_to_user((void __user *)arg,
data_ptr,
sizeof(imx179_dflt_cap))) {
dev_err(&info->i2c_client->dev,
"%s copy_to_user err line %d\n",
__func__, __LINE__);
return -EFAULT;
}
return 0;
case NVC_IOCTL_STATIC_RD:
dev_dbg(&info->i2c_client->dev, "%s STATIC_RD n=%d\n",
__func__, sizeof(struct nvc_imager_static_nvc));
data_ptr = &info->sdata;
if (copy_to_user((void __user *)arg,
data_ptr,
sizeof(struct nvc_imager_static_nvc))) {
dev_err(&info->i2c_client->dev,
"%s copy_to_user err line %d\n",
__func__, __LINE__);
return -EFAULT;
}
return 0;
default:
dev_dbg(&info->i2c_client->dev, "%s unsupported ioctl: %x\n",
__func__, cmd);
}
return -EINVAL;
}
static void imx179_sdata_init(struct imx179_info *info)
{
if (info->pdata->cap)
info->cap = info->pdata->cap;
else
info->cap = &imx179_dflt_cap;
memcpy(&info->sdata, &imx179_dflt_sdata, sizeof(info->sdata));
if (info->pdata->lens_focal_length)
info->sdata.focal_len = info->pdata->lens_focal_length;
if (info->pdata->lens_max_aperture)
info->sdata.max_aperture = info->pdata->lens_max_aperture;
if (info->pdata->lens_fnumber)
info->sdata.fnumber = info->pdata->lens_fnumber;
if (info->pdata->lens_view_angle_h)
info->sdata.view_angle_h = info->pdata->lens_view_angle_h;
if (info->pdata->lens_view_angle_v)
info->sdata.view_angle_v = info->pdata->lens_view_angle_v;
}
static int imx179_sync_en(unsigned num, unsigned sync)
{
struct imx179_info *master = NULL;
struct imx179_info *slave = NULL;
struct imx179_info *pos = NULL;
rcu_read_lock();
list_for_each_entry_rcu(pos, &imx179_info_list, list) {
if (pos->pdata->num == num) {
master = pos;
break;
}
}
pos = NULL;
list_for_each_entry_rcu(pos, &imx179_info_list, list) {
if (pos->pdata->num == sync) {
slave = pos;
break;
}
}
rcu_read_unlock();
if (master != NULL)
master->s_info = NULL;
if (slave != NULL)
slave->s_info = NULL;
if (!sync)
return 0; /* no err if sync disabled */
if (num == sync)
return -EINVAL; /* err if sync instance is itself */
if ((master != NULL) && (slave != NULL)) {
master->s_info = slave;
slave->s_info = master;
}
return 0;
}
static int imx179_sync_dis(struct imx179_info *info)
{
if (info->s_info != NULL) {
info->s_info->s_mode = 0;
info->s_info->s_info = NULL;
info->s_mode = 0;
info->s_info = NULL;
return 0;
}
return -EINVAL;
}
static int imx179_open(struct inode *inode, struct file *file)
{
struct imx179_info *info = NULL;
struct imx179_info *pos = NULL;
int err;
rcu_read_lock();
list_for_each_entry_rcu(pos, &imx179_info_list, list) {
if (pos->miscdev.minor == iminor(inode)) {
info = pos;
break;
}
}
rcu_read_unlock();
if (!info) {
pr_err("%s err @%d info is null\n", __func__, __LINE__);
return -ENODEV;
}
dev_dbg(&info->i2c_client->dev, "%s +++++\n", __func__);
err = imx179_sync_en(info->pdata->num, info->pdata->sync);
if (err == -EINVAL)
dev_err(&info->i2c_client->dev,
"%s err: invalid num (%u) and sync (%u) instance\n",
__func__, info->pdata->num, info->pdata->sync);
if (atomic_xchg(&info->in_use, 1)) {
dev_err(&info->i2c_client->dev, "%s err @%d device is busy\n",
__func__, __LINE__);
return -EBUSY;
}
if (info->s_info != NULL) {
if (atomic_xchg(&info->s_info->in_use, 1)) {
dev_err(&info->i2c_client->dev, "%s err @%d sync device is busy\n",
__func__, __LINE__);
return -EBUSY;
}
info->sdata.stereo_cap = 1;
}
file->private_data = info;
dev_dbg(&info->i2c_client->dev, "%s -----\n", __func__);
return 0;
}
static int imx179_release(struct inode *inode, struct file *file)
{
struct imx179_info *info = file->private_data;
dev_dbg(&info->i2c_client->dev, "%s +++++\n", __func__);
imx179_pm_wr_s(info, NVC_PWR_OFF);
file->private_data = NULL;
WARN_ON(!atomic_xchg(&info->in_use, 0));
if (info->s_info != NULL)
WARN_ON(!atomic_xchg(&info->s_info->in_use, 0));
imx179_sync_dis(info);
dev_dbg(&info->i2c_client->dev, "%s -----\n", __func__);
return 0;
}
static const struct file_operations imx179_fileops = {
.owner = THIS_MODULE,
.open = imx179_open,
.unlocked_ioctl = imx179_ioctl,
.release = imx179_release,
};
static void imx179_del(struct imx179_info *info)
{
imx179_pm_exit(info);
if ((info->s_mode == NVC_SYNC_SLAVE) ||
(info->s_mode == NVC_SYNC_STEREO))
imx179_pm_exit(info->s_info);
imx179_sync_dis(info);
spin_lock(&imx179_spinlock);
list_del_rcu(&info->list);
spin_unlock(&imx179_spinlock);
synchronize_rcu();
}
static int imx179_remove(struct i2c_client *client)
{
struct imx179_info *info = i2c_get_clientdata(client);
dev_dbg(&info->i2c_client->dev, "%s\n", __func__);
#ifdef CONFIG_DEBUG_FS
if (info->debugfs_root)
debugfs_remove_recursive(info->debugfs_root);
#endif
misc_deregister(&info->miscdev);
imx179_del(info);
return 0;
}
#ifdef CONFIG_DEBUG_FS
static int i2ca_get(void *data, u64 *val)
{
struct imx179_info *info = (struct imx179_info *)(data);
*val = (u64)info->i2c_reg;
return 0;
}
static int i2ca_set(void *data, u64 val)
{
struct imx179_info *info = (struct imx179_info *)(data);
if (val > 0x36FF) {
dev_err(&info->i2c_client->dev, "ERR:%s out of range\n",
__func__);
return -EIO;
}
info->i2c_reg = (u16) val;
return 0;
}
DEFINE_SIMPLE_ATTRIBUTE(i2ca_fops, i2ca_get, i2ca_set, "0x%02llx\n");
static int i2cr_get(void *data, u64 *val)
{
u8 temp = 0;
struct imx179_info *info = (struct imx179_info *)(data);
if (imx179_i2c_rd8(info, info->i2c_reg, &temp)) {
dev_err(&info->i2c_client->dev, "ERR:%s failed\n", __func__);
return -EIO;
}
*val = (u64)temp;
return 0;
}
static int i2cr_set(void *data, u64 val)
{
return 0;
}
DEFINE_SIMPLE_ATTRIBUTE(i2cr_fops, i2cr_get, i2cr_set, "0x%02llx\n");
static int i2cw_get(void *data, u64 *val)
{
return 0;
}
static int i2cw_set(void *data, u64 val)
{
struct imx179_info *info = (struct imx179_info *)(data);
val &= 0xFF;
if (imx179_i2c_wr8(info, info->i2c_reg, val)) {
dev_err(&info->i2c_client->dev, "ERR:%s failed\n", __func__);
return -EIO;
}
return 0;
}
DEFINE_SIMPLE_ATTRIBUTE(i2cw_fops, i2cw_get, i2cw_set, "0x%02llx\n");
static int imx179_debug_init(struct imx179_info *info)
{
dev_dbg(&info->i2c_client->dev, "%s", __func__);
info->i2c_reg = 0;
info->debugfs_root = debugfs_create_dir(info->miscdev.name, NULL);
if (!info->debugfs_root)
goto err_out;
if (!debugfs_create_file("i2ca", S_IRUGO | S_IWUSR,
info->debugfs_root, info, &i2ca_fops))
goto err_out;
if (!debugfs_create_file("i2cr", S_IRUGO,
info->debugfs_root, info, &i2cr_fops))
goto err_out;
if (!debugfs_create_file("i2cw", S_IWUSR,
info->debugfs_root, info, &i2cw_fops))
goto err_out;
return 0;
err_out:
dev_err(&info->i2c_client->dev, "ERROR:%s failed", __func__);
if (info->debugfs_root)
debugfs_remove_recursive(info->debugfs_root);
return -ENOMEM;
}
#endif
static int imx179_probe(
struct i2c_client *client,
const struct i2c_device_id *id)
{
struct imx179_info *info;
char dname[16];
unsigned long clock_probe_rate;
int err;
const char *mclk_name;
dev_dbg(&client->dev, "%s +++++\n", __func__);
info = devm_kzalloc(&client->dev, sizeof(*info), GFP_KERNEL);
if (info == NULL) {
dev_err(&client->dev, "%s: kzalloc error\n", __func__);
return -ENOMEM;
}
info->i2c_client = client;
if (client->dev.platform_data) {
info->pdata = client->dev.platform_data;
} else {
info->pdata = &imx179_dflt_pdata;
dev_dbg(&client->dev,
"%s No platform data. Using defaults.\n", __func__);
}
mclk_name = info->pdata->mclk_name ?
info->pdata->mclk_name : "default_mclk";
info->mclk = devm_clk_get(&client->dev, mclk_name);
if (IS_ERR(info->mclk)) {
dev_err(&client->dev, "%s: unable to get clock %s\n",
__func__, mclk_name);
return PTR_ERR(info->mclk);
}
i2c_set_clientdata(client, info);
INIT_LIST_HEAD(&info->list);
spin_lock(&imx179_spinlock);
list_add_rcu(&info->list, &imx179_info_list);
spin_unlock(&imx179_spinlock);
imx179_pm_init(info);
imx179_sdata_init(info);
imx179_get_flash_cap(info);
if (info->pdata->cfg & (NVC_CFG_NODEV | NVC_CFG_BOOT_INIT)) {
if (info->pdata->probe_clock) {
if (info->cap->initial_clock_rate_khz)
clock_probe_rate = info->cap->
initial_clock_rate_khz;
else
clock_probe_rate = imx179_dflt_cap.
initial_clock_rate_khz;
clock_probe_rate *= 1000;
info->pdata->probe_clock(clock_probe_rate);
}
err = imx179_dev_id(info);
if (err < 0) {
if (info->pdata->cfg & NVC_CFG_NODEV) {
imx179_del(info);
if (info->pdata->probe_clock)
info->pdata->probe_clock(0);
return -ENODEV;
} else {
dev_err(&client->dev, "%s device not found\n",
__func__);
}
} else {
dev_dbg(&client->dev, "%s device found\n", __func__);
if (info->pdata->cfg & NVC_CFG_BOOT_INIT)
imx179_mode_wr_full(info, info->cap->
preferred_mode_index);
}
imx179_pm_dev_wr(info, NVC_PWR_OFF);
if (info->pdata->probe_clock)
info->pdata->probe_clock(0);
}
if (info->pdata->dev_name != 0)
strcpy(dname, info->pdata->dev_name);
else
strcpy(dname, "imx179");
if (info->pdata->num)
snprintf(dname, sizeof(dname), "%s.%u",
dname, info->pdata->num);
info->miscdev.name = dname;
info->miscdev.fops = &imx179_fileops;
info->miscdev.minor = MISC_DYNAMIC_MINOR;
if (misc_register(&info->miscdev)) {
dev_err(&client->dev, "%s unable to register misc device %s\n",
__func__, dname);
imx179_del(info);
return -ENODEV;
}
#ifdef CONFIG_DEBUG_FS
imx179_debug_init(info);
#endif
dev_dbg(&client->dev, "%s -----\n", __func__);
return 0;
}
static const struct i2c_device_id imx179_id[] = {
{ "imx179", 0 },
{ },
};
MODULE_DEVICE_TABLE(i2c, imx179_id);
static struct i2c_driver imx179_i2c_driver = {
.driver = {
.name = "imx179",
.owner = THIS_MODULE,
},
.id_table = imx179_id,
.probe = imx179_probe,
.remove = imx179_remove,
};
module_i2c_driver(imx179_i2c_driver);
MODULE_LICENSE("GPL v2");
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