diff options
Diffstat (limited to 'drivers/media/i2c/adv7180.c')
| -rw-r--r-- | drivers/media/i2c/adv7180.c | 187 |
1 files changed, 130 insertions, 57 deletions
diff --git a/drivers/media/i2c/adv7180.c b/drivers/media/i2c/adv7180.c index 363d8d98914c..170c2fcceb00 100644 --- a/drivers/media/i2c/adv7180.c +++ b/drivers/media/i2c/adv7180.c @@ -32,23 +32,24 @@ #include <linux/mutex.h> #include <linux/delay.h> +#define ADV7180_STD_AD_PAL_BG_NTSC_J_SECAM 0x0 +#define ADV7180_STD_AD_PAL_BG_NTSC_J_SECAM_PED 0x1 +#define ADV7180_STD_AD_PAL_N_NTSC_J_SECAM 0x2 +#define ADV7180_STD_AD_PAL_N_NTSC_M_SECAM 0x3 +#define ADV7180_STD_NTSC_J 0x4 +#define ADV7180_STD_NTSC_M 0x5 +#define ADV7180_STD_PAL60 0x6 +#define ADV7180_STD_NTSC_443 0x7 +#define ADV7180_STD_PAL_BG 0x8 +#define ADV7180_STD_PAL_N 0x9 +#define ADV7180_STD_PAL_M 0xa +#define ADV7180_STD_PAL_M_PED 0xb +#define ADV7180_STD_PAL_COMB_N 0xc +#define ADV7180_STD_PAL_COMB_N_PED 0xd +#define ADV7180_STD_PAL_SECAM 0xe +#define ADV7180_STD_PAL_SECAM_PED 0xf + #define ADV7180_REG_INPUT_CONTROL 0x0000 -#define ADV7180_INPUT_CONTROL_AD_PAL_BG_NTSC_J_SECAM 0x00 -#define ADV7180_INPUT_CONTROL_AD_PAL_BG_NTSC_J_SECAM_PED 0x10 -#define ADV7180_INPUT_CONTROL_AD_PAL_N_NTSC_J_SECAM 0x20 -#define ADV7180_INPUT_CONTROL_AD_PAL_N_NTSC_M_SECAM 0x30 -#define ADV7180_INPUT_CONTROL_NTSC_J 0x40 -#define ADV7180_INPUT_CONTROL_NTSC_M 0x50 -#define ADV7180_INPUT_CONTROL_PAL60 0x60 -#define ADV7180_INPUT_CONTROL_NTSC_443 0x70 -#define ADV7180_INPUT_CONTROL_PAL_BG 0x80 -#define ADV7180_INPUT_CONTROL_PAL_N 0x90 -#define ADV7180_INPUT_CONTROL_PAL_M 0xa0 -#define ADV7180_INPUT_CONTROL_PAL_M_PED 0xb0 -#define ADV7180_INPUT_CONTROL_PAL_COMB_N 0xc0 -#define ADV7180_INPUT_CONTROL_PAL_COMB_N_PED 0xd0 -#define ADV7180_INPUT_CONTROL_PAL_SECAM 0xe0 -#define ADV7180_INPUT_CONTROL_PAL_SECAM_PED 0xf0 #define ADV7180_INPUT_CONTROL_INSEL_MASK 0x0f #define ADV7180_REG_EXTENDED_OUTPUT_CONTROL 0x0004 @@ -121,6 +122,30 @@ #define ADV7180_REG_NTSC_V_BIT_END 0x00E6 #define ADV7180_NTSC_V_BIT_END_MANUAL_NVEND 0x4F +#define ADV7180_INPUT_CVBS_AIN1 0x00 +#define ADV7180_INPUT_CVBS_AIN2 0x01 +#define ADV7180_INPUT_CVBS_AIN3 0x02 +#define ADV7180_INPUT_CVBS_AIN4 0x03 +#define ADV7180_INPUT_CVBS_AIN5 0x04 +#define ADV7180_INPUT_CVBS_AIN6 0x05 +#define ADV7180_INPUT_SVIDEO_AIN1_AIN2 0x06 +#define ADV7180_INPUT_SVIDEO_AIN3_AIN4 0x07 +#define ADV7180_INPUT_SVIDEO_AIN5_AIN6 0x08 +#define ADV7180_INPUT_YPRPB_AIN1_AIN2_AIN3 0x09 +#define ADV7180_INPUT_YPRPB_AIN4_AIN5_AIN6 0x0a + +struct adv7180_state; + +#define ADV7180_FLAG_RESET_POWERED BIT(0) + +struct adv7180_chip_info { + unsigned int flags; + unsigned int valid_input_mask; + int (*set_std)(struct adv7180_state *st, unsigned int std); + int (*select_input)(struct adv7180_state *st, unsigned int input); + int (*init)(struct adv7180_state *state); +}; + struct adv7180_state { struct v4l2_ctrl_handler ctrl_hdl; struct v4l2_subdev sd; @@ -134,6 +159,7 @@ struct adv7180_state { struct i2c_client *client; unsigned int register_page; + const struct adv7180_chip_info *chip_info; }; #define to_adv7180_sd(_ctrl) (&container_of(_ctrl->handler, \ struct adv7180_state, \ @@ -165,6 +191,11 @@ static int adv7180_read(struct adv7180_state *state, unsigned int reg) return i2c_smbus_read_byte_data(state->client, reg & 0xff); } +static int adv7180_set_video_standard(struct adv7180_state *state, + unsigned int std) +{ + return state->chip_info->set_std(state, std); +} static v4l2_std_id adv7180_std_to_v4l2(u8 status1) { @@ -197,22 +228,22 @@ static v4l2_std_id adv7180_std_to_v4l2(u8 status1) static int v4l2_std_to_adv7180(v4l2_std_id std) { if (std == V4L2_STD_PAL_60) - return ADV7180_INPUT_CONTROL_PAL60; + return ADV7180_STD_PAL60; if (std == V4L2_STD_NTSC_443) - return ADV7180_INPUT_CONTROL_NTSC_443; + return ADV7180_STD_NTSC_443; if (std == V4L2_STD_PAL_N) - return ADV7180_INPUT_CONTROL_PAL_N; + return ADV7180_STD_PAL_N; if (std == V4L2_STD_PAL_M) - return ADV7180_INPUT_CONTROL_PAL_M; + return ADV7180_STD_PAL_M; if (std == V4L2_STD_PAL_Nc) - return ADV7180_INPUT_CONTROL_PAL_COMB_N; + return ADV7180_STD_PAL_COMB_N; if (std & V4L2_STD_PAL) - return ADV7180_INPUT_CONTROL_PAL_BG; + return ADV7180_STD_PAL_BG; if (std & V4L2_STD_NTSC) - return ADV7180_INPUT_CONTROL_NTSC_M; + return ADV7180_STD_NTSC_M; if (std & V4L2_STD_SECAM) - return ADV7180_INPUT_CONTROL_PAL_SECAM; + return ADV7180_STD_PAL_SECAM; return -EINVAL; } @@ -272,19 +303,15 @@ static int adv7180_s_routing(struct v4l2_subdev *sd, u32 input, if (ret) return ret; - /* We cannot discriminate between LQFP and 40-pin LFCSP, so accept - * all inputs and let the card driver take care of validation - */ - if ((input & ADV7180_INPUT_CONTROL_INSEL_MASK) != input) + if (input > 31 || !(BIT(input) & state->chip_info->valid_input_mask)) { + ret = -EINVAL; goto out; + } - ret = adv7180_read(state, ADV7180_REG_INPUT_CONTROL); - if (ret < 0) - goto out; + ret = state->chip_info->select_input(state, input); - ret &= ~ADV7180_INPUT_CONTROL_INSEL_MASK; - ret = adv7180_write(state, ADV7180_REG_INPUT_CONTROL, ret | input); - state->input = input; + if (ret == 0) + state->input = input; out: mutex_unlock(&state->mutex); return ret; @@ -307,9 +334,8 @@ static int adv7180_program_std(struct adv7180_state *state) int ret; if (state->autodetect) { - ret = adv7180_write(state, ADV7180_REG_INPUT_CONTROL, - ADV7180_INPUT_CONTROL_AD_PAL_BG_NTSC_J_SECAM - | state->input); + ret = adv7180_set_video_standard(state, + ADV7180_STD_AD_PAL_BG_NTSC_J_SECAM); if (ret < 0) return ret; @@ -319,8 +345,7 @@ static int adv7180_program_std(struct adv7180_state *state) if (ret < 0) return ret; - ret = adv7180_write(state, ADV7180_REG_INPUT_CONTROL, - ret | state->input); + ret = adv7180_set_video_standard(state, ret); if (ret < 0) return ret; } @@ -521,6 +546,7 @@ static const struct v4l2_subdev_video_ops adv7180_video_ops = { .g_mbus_config = adv7180_g_mbus_config, }; + static const struct v4l2_subdev_core_ops adv7180_core_ops = { .s_power = adv7180_s_power, }; @@ -554,33 +580,77 @@ static irqreturn_t adv7180_irq(int irq, void *devid) return IRQ_HANDLED; } -static int init_device(struct adv7180_state *state) +static int adv7180_init(struct adv7180_state *state) { int ret; - mutex_lock(&state->mutex); - - adv7180_write(state, ADV7180_REG_PWR_MAN, ADV7180_PWR_MAN_RES); - usleep_range(2000, 10000); - - ret = adv7180_program_std(state); - if (ret) - goto out_unlock; - /* ITU-R BT.656-4 compatible */ ret = adv7180_write(state, ADV7180_REG_EXTENDED_OUTPUT_CONTROL, ADV7180_EXTENDED_OUTPUT_CONTROL_NTSCDIS); if (ret < 0) - goto out_unlock; + return ret; /* Manually set V bit end position in NTSC mode */ - ret = adv7180_write(state, ADV7180_REG_NTSC_V_BIT_END, + return adv7180_write(state, ADV7180_REG_NTSC_V_BIT_END, ADV7180_NTSC_V_BIT_END_MANUAL_NVEND); +} + +static int adv7180_set_std(struct adv7180_state *state, unsigned int std) +{ + return adv7180_write(state, ADV7180_REG_INPUT_CONTROL, + (std << 4) | state->input); +} + +static int adv7180_select_input(struct adv7180_state *state, unsigned int input) +{ + int ret; + + ret = adv7180_read(state, ADV7180_REG_INPUT_CONTROL); if (ret < 0) + return ret; + + ret &= ~ADV7180_INPUT_CONTROL_INSEL_MASK; + ret |= input; + return adv7180_write(state, ADV7180_REG_INPUT_CONTROL, ret); +} + +static const struct adv7180_chip_info adv7180_info = { + .flags = ADV7180_FLAG_RESET_POWERED, + /* We cannot discriminate between LQFP and 40-pin LFCSP, so accept + * all inputs and let the card driver take care of validation + */ + .valid_input_mask = BIT(ADV7180_INPUT_CVBS_AIN1) | + BIT(ADV7180_INPUT_CVBS_AIN2) | + BIT(ADV7180_INPUT_CVBS_AIN3) | + BIT(ADV7180_INPUT_CVBS_AIN4) | + BIT(ADV7180_INPUT_CVBS_AIN5) | + BIT(ADV7180_INPUT_CVBS_AIN6) | + BIT(ADV7180_INPUT_SVIDEO_AIN1_AIN2) | + BIT(ADV7180_INPUT_SVIDEO_AIN3_AIN4) | + BIT(ADV7180_INPUT_SVIDEO_AIN5_AIN6) | + BIT(ADV7180_INPUT_YPRPB_AIN1_AIN2_AIN3) | + BIT(ADV7180_INPUT_YPRPB_AIN4_AIN5_AIN6), + .init = adv7180_init, + .set_std = adv7180_set_std, + .select_input = adv7180_select_input, +}; + +static int init_device(struct adv7180_state *state) +{ + int ret; + + mutex_lock(&state->mutex); + + adv7180_write(state, ADV7180_REG_PWR_MAN, ADV7180_PWR_MAN_RES); + usleep_range(2000, 10000); + + ret = state->chip_info->init(state); + if (ret) goto out_unlock; - /* read current norm */ - __adv7180_status(state, NULL, &state->curr_norm); + ret = adv7180_program_std(state); + if (ret) + goto out_unlock; /* register for interrupts */ if (state->irq > 0) { @@ -635,11 +705,15 @@ static int adv7180_probe(struct i2c_client *client, return -ENOMEM; state->client = client; + state->chip_info = (struct adv7180_chip_info *)id->driver_data; state->irq = client->irq; mutex_init(&state->mutex); state->autodetect = true; - state->powered = true; + if (state->chip_info->flags & ADV7180_FLAG_RESET_POWERED) + state->powered = true; + else + state->powered = false; state->input = 0; sd = &state->sd; v4l2_i2c_subdev_init(sd, client, &adv7180_ops); @@ -702,9 +776,10 @@ static int adv7180_remove(struct i2c_client *client) } static const struct i2c_device_id adv7180_id[] = { - {KBUILD_MODNAME, 0}, + { "adv7180", (kernel_ulong_t)&adv7180_info }, {}, }; +MODULE_DEVICE_TABLE(i2c, adv7180_id); #ifdef CONFIG_PM_SLEEP static int adv7180_suspend(struct device *dev) @@ -741,8 +816,6 @@ static SIMPLE_DEV_PM_OPS(adv7180_pm_ops, adv7180_suspend, adv7180_resume); #define ADV7180_PM_OPS NULL #endif -MODULE_DEVICE_TABLE(i2c, adv7180_id); - static struct i2c_driver adv7180_driver = { .driver = { .owner = THIS_MODULE, |