diff options
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/i2c/adv7180.c | 206 |
1 files changed, 105 insertions, 101 deletions
diff --git a/drivers/media/i2c/adv7180.c b/drivers/media/i2c/adv7180.c index a3ea3bbd16c6..432a756f8e1d 100644 --- a/drivers/media/i2c/adv7180.c +++ b/drivers/media/i2c/adv7180.c @@ -31,7 +31,7 @@ #include <media/v4l2-ctrls.h> #include <linux/mutex.h> -#define ADV7180_REG_INPUT_CONTROL 0x00 +#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 @@ -50,28 +50,28 @@ #define ADV7180_INPUT_CONTROL_PAL_SECAM_PED 0xf0 #define ADV7180_INPUT_CONTROL_INSEL_MASK 0x0f -#define ADV7180_REG_EXTENDED_OUTPUT_CONTROL 0x04 +#define ADV7180_REG_EXTENDED_OUTPUT_CONTROL 0x0004 #define ADV7180_EXTENDED_OUTPUT_CONTROL_NTSCDIS 0xC5 #define ADV7180_REG_AUTODETECT_ENABLE 0x07 #define ADV7180_AUTODETECT_DEFAULT 0x7f /* Contrast */ -#define ADV7180_REG_CON 0x08 /*Unsigned */ +#define ADV7180_REG_CON 0x0008 /*Unsigned */ #define ADV7180_CON_MIN 0 #define ADV7180_CON_DEF 128 #define ADV7180_CON_MAX 255 /* Brightness*/ -#define ADV7180_REG_BRI 0x0a /*Signed */ +#define ADV7180_REG_BRI 0x000a /*Signed */ #define ADV7180_BRI_MIN -128 #define ADV7180_BRI_DEF 0 #define ADV7180_BRI_MAX 127 /* Hue */ -#define ADV7180_REG_HUE 0x0b /*Signed, inverted */ +#define ADV7180_REG_HUE 0x000b /*Signed, inverted */ #define ADV7180_HUE_MIN -127 #define ADV7180_HUE_DEF 0 #define ADV7180_HUE_MAX 128 -#define ADV7180_REG_CTRL 0x0e +#define ADV7180_REG_CTRL 0x000e #define ADV7180_CTRL_IRQ_SPACE 0x20 #define ADV7180_REG_PWR_MAN 0x0f @@ -79,7 +79,7 @@ #define ADV7180_PWR_MAN_OFF 0x24 #define ADV7180_PWR_MAN_RES 0x80 -#define ADV7180_REG_STATUS1 0x10 +#define ADV7180_REG_STATUS1 0x0010 #define ADV7180_STATUS1_IN_LOCK 0x01 #define ADV7180_STATUS1_AUTOD_MASK 0x70 #define ADV7180_STATUS1_AUTOD_NTSM_M_J 0x00 @@ -91,33 +91,33 @@ #define ADV7180_STATUS1_AUTOD_PAL_COMB 0x60 #define ADV7180_STATUS1_AUTOD_SECAM_525 0x70 -#define ADV7180_REG_IDENT 0x11 +#define ADV7180_REG_IDENT 0x0011 #define ADV7180_ID_7180 0x18 -#define ADV7180_REG_ICONF1 0x40 +#define ADV7180_REG_ICONF1 0x0040 #define ADV7180_ICONF1_ACTIVE_LOW 0x01 #define ADV7180_ICONF1_PSYNC_ONLY 0x10 #define ADV7180_ICONF1_ACTIVE_TO_CLR 0xC0 /* Saturation */ -#define ADV7180_REG_SD_SAT_CB 0xe3 /*Unsigned */ -#define ADV7180_REG_SD_SAT_CR 0xe4 /*Unsigned */ +#define ADV7180_REG_SD_SAT_CB 0x00e3 /*Unsigned */ +#define ADV7180_REG_SD_SAT_CR 0x00e4 /*Unsigned */ #define ADV7180_SAT_MIN 0 #define ADV7180_SAT_DEF 128 #define ADV7180_SAT_MAX 255 #define ADV7180_IRQ1_LOCK 0x01 #define ADV7180_IRQ1_UNLOCK 0x02 -#define ADV7180_REG_ISR1 0x42 -#define ADV7180_REG_ICR1 0x43 -#define ADV7180_REG_IMR1 0x44 -#define ADV7180_REG_IMR2 0x48 +#define ADV7180_REG_ISR1 0x0042 +#define ADV7180_REG_ICR1 0x0043 +#define ADV7180_REG_IMR1 0x0044 +#define ADV7180_REG_IMR2 0x0048 #define ADV7180_IRQ3_AD_CHANGE 0x08 -#define ADV7180_REG_ISR3 0x4A -#define ADV7180_REG_ICR3 0x4B -#define ADV7180_REG_IMR3 0x4C +#define ADV7180_REG_ISR3 0x004A +#define ADV7180_REG_ICR3 0x004B +#define ADV7180_REG_IMR3 0x004C #define ADV7180_REG_IMR4 0x50 -#define ADV7180_REG_NTSC_V_BIT_END 0xE6 +#define ADV7180_REG_NTSC_V_BIT_END 0x00E6 #define ADV7180_NTSC_V_BIT_END_MANUAL_NVEND 0x4F struct adv7180_state { @@ -129,11 +129,41 @@ struct adv7180_state { bool autodetect; bool powered; u8 input; + + struct i2c_client *client; + unsigned int register_page; }; #define to_adv7180_sd(_ctrl) (&container_of(_ctrl->handler, \ struct adv7180_state, \ ctrl_hdl)->sd) +static int adv7180_select_page(struct adv7180_state *state, unsigned int page) +{ + if (state->register_page != page) { + i2c_smbus_write_byte_data(state->client, ADV7180_REG_CTRL, + page); + state->register_page = page; + } + + return 0; +} + +static int adv7180_write(struct adv7180_state *state, unsigned int reg, + unsigned int value) +{ + lockdep_assert_held(&state->mutex); + adv7180_select_page(state, reg >> 8); + return i2c_smbus_write_byte_data(state->client, reg & 0xff, value); +} + +static int adv7180_read(struct adv7180_state *state, unsigned int reg) +{ + lockdep_assert_held(&state->mutex); + adv7180_select_page(state, reg >> 8); + return i2c_smbus_read_byte_data(state->client, reg & 0xff); +} + + static v4l2_std_id adv7180_std_to_v4l2(u8 status1) { /* in case V4L2_IN_ST_NO_SIGNAL */ @@ -193,10 +223,10 @@ static u32 adv7180_status_to_v4l2(u8 status1) return 0; } -static int __adv7180_status(struct i2c_client *client, u32 *status, +static int __adv7180_status(struct adv7180_state *state, u32 *status, v4l2_std_id *std) { - int status1 = i2c_smbus_read_byte_data(client, ADV7180_REG_STATUS1); + int status1 = adv7180_read(state, ADV7180_REG_STATUS1); if (status1 < 0) return status1; @@ -225,7 +255,7 @@ static int adv7180_querystd(struct v4l2_subdev *sd, v4l2_std_id *std) if (!state->autodetect || state->irq > 0) *std = state->curr_norm; else - err = __adv7180_status(v4l2_get_subdevdata(sd), NULL, std); + err = __adv7180_status(state, NULL, std); mutex_unlock(&state->mutex); return err; @@ -236,7 +266,6 @@ static int adv7180_s_routing(struct v4l2_subdev *sd, u32 input, { struct adv7180_state *state = to_state(sd); int ret = mutex_lock_interruptible(&state->mutex); - struct i2c_client *client = v4l2_get_subdevdata(sd); if (ret) return ret; @@ -247,13 +276,12 @@ static int adv7180_s_routing(struct v4l2_subdev *sd, u32 input, if ((input & ADV7180_INPUT_CONTROL_INSEL_MASK) != input) goto out; - ret = i2c_smbus_read_byte_data(client, ADV7180_REG_INPUT_CONTROL); + ret = adv7180_read(state, ADV7180_REG_INPUT_CONTROL); if (ret < 0) goto out; ret &= ~ADV7180_INPUT_CONTROL_INSEL_MASK; - ret = i2c_smbus_write_byte_data(client, - ADV7180_REG_INPUT_CONTROL, ret | input); + ret = adv7180_write(state, ADV7180_REG_INPUT_CONTROL, ret | input); state->input = input; out: mutex_unlock(&state->mutex); @@ -267,7 +295,7 @@ static int adv7180_g_input_status(struct v4l2_subdev *sd, u32 *status) if (ret) return ret; - ret = __adv7180_status(v4l2_get_subdevdata(sd), status, NULL); + ret = __adv7180_status(state, status, NULL); mutex_unlock(&state->mutex); return ret; } @@ -275,30 +303,27 @@ static int adv7180_g_input_status(struct v4l2_subdev *sd, u32 *status) static int adv7180_s_std(struct v4l2_subdev *sd, v4l2_std_id std) { struct adv7180_state *state = to_state(sd); - struct i2c_client *client = v4l2_get_subdevdata(sd); int ret = mutex_lock_interruptible(&state->mutex); if (ret) return ret; /* all standards -> autodetect */ if (std == V4L2_STD_ALL) { - ret = - i2c_smbus_write_byte_data(client, ADV7180_REG_INPUT_CONTROL, - ADV7180_INPUT_CONTROL_AD_PAL_BG_NTSC_J_SECAM - | state->input); + ret = adv7180_write(state, ADV7180_REG_INPUT_CONTROL, + ADV7180_INPUT_CONTROL_AD_PAL_BG_NTSC_J_SECAM + | state->input); if (ret < 0) goto out; - __adv7180_status(client, NULL, &state->curr_norm); + __adv7180_status(state, NULL, &state->curr_norm); state->autodetect = true; } else { ret = v4l2_std_to_adv7180(std); if (ret < 0) goto out; - ret = i2c_smbus_write_byte_data(client, - ADV7180_REG_INPUT_CONTROL, - ret | state->input); + ret = adv7180_write(state, ADV7180_REG_INPUT_CONTROL, + ret | state->input); if (ret < 0) goto out; @@ -311,8 +336,7 @@ out: return ret; } -static int adv7180_set_power(struct adv7180_state *state, - struct i2c_client *client, bool on) +static int adv7180_set_power(struct adv7180_state *state, bool on) { u8 val; @@ -321,20 +345,19 @@ static int adv7180_set_power(struct adv7180_state *state, else val = ADV7180_PWR_MAN_OFF; - return i2c_smbus_write_byte_data(client, ADV7180_REG_PWR_MAN, val); + return adv7180_write(state, ADV7180_REG_PWR_MAN, val); } static int adv7180_s_power(struct v4l2_subdev *sd, int on) { struct adv7180_state *state = to_state(sd); - struct i2c_client *client = v4l2_get_subdevdata(sd); int ret; ret = mutex_lock_interruptible(&state->mutex); if (ret) return ret; - ret = adv7180_set_power(state, client, on); + ret = adv7180_set_power(state, on); if (ret == 0) state->powered = on; @@ -346,7 +369,6 @@ static int adv7180_s_ctrl(struct v4l2_ctrl *ctrl) { struct v4l2_subdev *sd = to_adv7180_sd(ctrl); struct adv7180_state *state = to_state(sd); - struct i2c_client *client = v4l2_get_subdevdata(sd); int ret = mutex_lock_interruptible(&state->mutex); int val; @@ -355,26 +377,24 @@ static int adv7180_s_ctrl(struct v4l2_ctrl *ctrl) val = ctrl->val; switch (ctrl->id) { case V4L2_CID_BRIGHTNESS: - ret = i2c_smbus_write_byte_data(client, ADV7180_REG_BRI, val); + ret = adv7180_write(state, ADV7180_REG_BRI, val); break; case V4L2_CID_HUE: /*Hue is inverted according to HSL chart */ - ret = i2c_smbus_write_byte_data(client, ADV7180_REG_HUE, -val); + ret = adv7180_write(state, ADV7180_REG_HUE, -val); break; case V4L2_CID_CONTRAST: - ret = i2c_smbus_write_byte_data(client, ADV7180_REG_CON, val); + ret = adv7180_write(state, ADV7180_REG_CON, val); break; case V4L2_CID_SATURATION: /* *This could be V4L2_CID_BLUE_BALANCE/V4L2_CID_RED_BALANCE *Let's not confuse the user, everybody understands saturation */ - ret = i2c_smbus_write_byte_data(client, ADV7180_REG_SD_SAT_CB, - val); + ret = adv7180_write(state, ADV7180_REG_SD_SAT_CB, val); if (ret < 0) break; - ret = i2c_smbus_write_byte_data(client, ADV7180_REG_SD_SAT_CR, - val); + ret = adv7180_write(state, ADV7180_REG_SD_SAT_CR, val); break; default: ret = -EINVAL; @@ -483,114 +503,96 @@ static const struct v4l2_subdev_ops adv7180_ops = { static irqreturn_t adv7180_irq(int irq, void *devid) { struct adv7180_state *state = devid; - struct i2c_client *client = v4l2_get_subdevdata(&state->sd); u8 isr3; mutex_lock(&state->mutex); - i2c_smbus_write_byte_data(client, ADV7180_REG_CTRL, - ADV7180_CTRL_IRQ_SPACE); - isr3 = i2c_smbus_read_byte_data(client, ADV7180_REG_ISR3); + isr3 = adv7180_read(state, ADV7180_REG_ISR3); /* clear */ - i2c_smbus_write_byte_data(client, ADV7180_REG_ICR3, isr3); - i2c_smbus_write_byte_data(client, ADV7180_REG_CTRL, 0); + adv7180_write(state, ADV7180_REG_ICR3, isr3); if (isr3 & ADV7180_IRQ3_AD_CHANGE && state->autodetect) - __adv7180_status(client, NULL, &state->curr_norm); + __adv7180_status(state, NULL, &state->curr_norm); mutex_unlock(&state->mutex); return IRQ_HANDLED; } -static int init_device(struct i2c_client *client, struct adv7180_state *state) +static int init_device(struct adv7180_state *state) { int ret; + mutex_lock(&state->mutex); + /* Initialize adv7180 */ /* Enable autodetection */ if (state->autodetect) { - ret = - i2c_smbus_write_byte_data(client, ADV7180_REG_INPUT_CONTROL, + ret = adv7180_write(state, ADV7180_REG_INPUT_CONTROL, ADV7180_INPUT_CONTROL_AD_PAL_BG_NTSC_J_SECAM | state->input); if (ret < 0) - return ret; + goto out_unlock; - ret = - i2c_smbus_write_byte_data(client, - ADV7180_REG_AUTODETECT_ENABLE, + ret = adv7180_write(state, ADV7180_REG_AUTODETECT_ENABLE, ADV7180_AUTODETECT_DEFAULT); if (ret < 0) - return ret; + goto out_unlock; } else { ret = v4l2_std_to_adv7180(state->curr_norm); if (ret < 0) - return ret; + goto out_unlock; - ret = - i2c_smbus_write_byte_data(client, ADV7180_REG_INPUT_CONTROL, + ret = adv7180_write(state, ADV7180_REG_INPUT_CONTROL, ret | state->input); if (ret < 0) - return ret; + goto out_unlock; } /* ITU-R BT.656-4 compatible */ - ret = i2c_smbus_write_byte_data(client, - ADV7180_REG_EXTENDED_OUTPUT_CONTROL, + ret = adv7180_write(state, ADV7180_REG_EXTENDED_OUTPUT_CONTROL, ADV7180_EXTENDED_OUTPUT_CONTROL_NTSCDIS); if (ret < 0) - return ret; + goto out_unlock; /* Manually set V bit end position in NTSC mode */ - ret = i2c_smbus_write_byte_data(client, - ADV7180_REG_NTSC_V_BIT_END, + ret = adv7180_write(state, ADV7180_REG_NTSC_V_BIT_END, ADV7180_NTSC_V_BIT_END_MANUAL_NVEND); if (ret < 0) - return ret; + goto out_unlock; /* read current norm */ - __adv7180_status(client, NULL, &state->curr_norm); + __adv7180_status(state, NULL, &state->curr_norm); /* register for interrupts */ if (state->irq > 0) { - ret = i2c_smbus_write_byte_data(client, ADV7180_REG_CTRL, - ADV7180_CTRL_IRQ_SPACE); - if (ret < 0) - goto err; - /* config the Interrupt pin to be active low */ - ret = i2c_smbus_write_byte_data(client, ADV7180_REG_ICONF1, + ret = adv7180_write(state, ADV7180_REG_ICONF1, ADV7180_ICONF1_ACTIVE_LOW | ADV7180_ICONF1_PSYNC_ONLY); if (ret < 0) - goto err; + goto out_unlock; - ret = i2c_smbus_write_byte_data(client, ADV7180_REG_IMR1, 0); + ret = adv7180_write(state, ADV7180_REG_IMR1, 0); if (ret < 0) - goto err; + goto out_unlock; - ret = i2c_smbus_write_byte_data(client, ADV7180_REG_IMR2, 0); + ret = adv7180_write(state, ADV7180_REG_IMR2, 0); if (ret < 0) - goto err; + goto out_unlock; /* enable AD change interrupts interrupts */ - ret = i2c_smbus_write_byte_data(client, ADV7180_REG_IMR3, + ret = adv7180_write(state, ADV7180_REG_IMR3, ADV7180_IRQ3_AD_CHANGE); if (ret < 0) - goto err; - - ret = i2c_smbus_write_byte_data(client, ADV7180_REG_IMR4, 0); - if (ret < 0) - goto err; + goto out_unlock; - ret = i2c_smbus_write_byte_data(client, ADV7180_REG_CTRL, - 0); + ret = adv7180_write(state, ADV7180_REG_IMR4, 0); if (ret < 0) - goto err; + goto out_unlock; } - return 0; +out_unlock: + mutex_unlock(&state->mutex); -err: return ret; } @@ -612,6 +614,8 @@ static int adv7180_probe(struct i2c_client *client, if (state == NULL) return -ENOMEM; + state->client = client; + state->irq = client->irq; mutex_init(&state->mutex); state->autodetect = true; @@ -623,7 +627,7 @@ static int adv7180_probe(struct i2c_client *client, ret = adv7180_init_controls(state); if (ret) goto err_unreg_subdev; - ret = init_device(client, state); + ret = init_device(state); if (ret) goto err_free_ctrl; @@ -678,7 +682,7 @@ static int adv7180_suspend(struct device *dev) struct v4l2_subdev *sd = i2c_get_clientdata(client); struct adv7180_state *state = to_state(sd); - return adv7180_set_power(state, client, false); + return adv7180_set_power(state, false); } static int adv7180_resume(struct device *dev) @@ -689,11 +693,11 @@ static int adv7180_resume(struct device *dev) int ret; if (state->powered) { - ret = adv7180_set_power(state, client, true); + ret = adv7180_set_power(state, true); if (ret) return ret; } - ret = init_device(client, state); + ret = init_device(state); if (ret < 0) return ret; return 0; |
