From b37135e395c37a8d63defafcb567d55220a672f0 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Fri, 23 Jan 2015 12:52:31 -0300 Subject: [PATCH] [media] adv7180: Add support for the adv7280-m/adv7281-m/adv7281-ma/adv7282-m This patch adds support for the adv7280-m/adv2781-m/adv7281-ma/adv7282-m devices to the adv7180 driver. They are very similar to the adv7280/adv7281/adv7282 but instead of parallel video out they feature a MIPI CSI2 transmitter. The CSI2 transmitter is configured via a separate I2C address, so we need to register a dummy device for it. Signed-off-by: Lars-Peter Clausen Acked-by: Federico Vaga Acked-by: Hans Verkuil Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/i2c/adv7180.c | 170 +++++++++++++++++++++++++++++++++++++++----- 1 file changed, 154 insertions(+), 16 deletions(-) diff --git a/drivers/media/i2c/adv7180.c b/drivers/media/i2c/adv7180.c index f55364ff2582..195d28f48c30 100644 --- a/drivers/media/i2c/adv7180.c +++ b/drivers/media/i2c/adv7180.c @@ -124,6 +124,11 @@ #define ADV7180_REG_NTSC_V_BIT_END 0x00E6 #define ADV7180_NTSC_V_BIT_END_MANUAL_NVEND 0x4F +#define ADV7180_REG_CSI_SLAVE_ADDR 0xFE + +#define ADV7180_CSI_REG_PWRDN 0x00 +#define ADV7180_CSI_PWRDN 0x80 + #define ADV7180_INPUT_CVBS_AIN1 0x00 #define ADV7180_INPUT_CVBS_AIN2 0x01 #define ADV7180_INPUT_CVBS_AIN3 0x02 @@ -155,10 +160,13 @@ #define ADV7182_INPUT_DIFF_CVBS_AIN5_AIN6 0x10 #define ADV7182_INPUT_DIFF_CVBS_AIN7_AIN8 0x11 +#define ADV7180_DEFAULT_CSI_I2C_ADDR 0x44 + struct adv7180_state; #define ADV7180_FLAG_RESET_POWERED BIT(0) #define ADV7180_FLAG_V2 BIT(1) +#define ADV7180_FLAG_MIPI_CSI2 BIT(2) struct adv7180_chip_info { unsigned int flags; @@ -181,6 +189,7 @@ struct adv7180_state { struct i2c_client *client; unsigned int register_page; + struct i2c_client *csi_client; const struct adv7180_chip_info *chip_info; }; #define to_adv7180_sd(_ctrl) (&container_of(_ctrl->handler, \ @@ -213,6 +222,12 @@ static int adv7180_read(struct adv7180_state *state, unsigned int reg) return i2c_smbus_read_byte_data(state->client, reg & 0xff); } +static int adv7180_csi_write(struct adv7180_state *state, unsigned int reg, + unsigned int value) +{ + return i2c_smbus_write_byte_data(state->csi_client, reg, value); +} + static int adv7180_set_video_standard(struct adv7180_state *state, unsigned int std) { @@ -405,13 +420,31 @@ out: static int adv7180_set_power(struct adv7180_state *state, bool on) { u8 val; + int ret; if (on) val = ADV7180_PWR_MAN_ON; else val = ADV7180_PWR_MAN_OFF; - return adv7180_write(state, ADV7180_REG_PWR_MAN, val); + ret = adv7180_write(state, ADV7180_REG_PWR_MAN, val); + if (ret) + return ret; + + if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2) { + if (on) { + adv7180_csi_write(state, 0xDE, 0x02); + adv7180_csi_write(state, 0xD2, 0xF7); + adv7180_csi_write(state, 0xD8, 0x65); + adv7180_csi_write(state, 0xE0, 0x09); + adv7180_csi_write(state, 0x2C, 0x00); + adv7180_csi_write(state, 0x00, 0x00); + } else { + adv7180_csi_write(state, 0x00, 0x80); + } + } + + return 0; } static int adv7180_s_power(struct v4l2_subdev *sd, int on) @@ -549,13 +582,22 @@ static int adv7180_set_pad_format(struct v4l2_subdev *sd, static int adv7180_g_mbus_config(struct v4l2_subdev *sd, struct v4l2_mbus_config *cfg) { - /* - * The ADV7180 sensor supports BT.601/656 output modes. - * The BT.656 is default and not yet configurable by s/w. - */ - cfg->flags = V4L2_MBUS_MASTER | V4L2_MBUS_PCLK_SAMPLE_RISING | - V4L2_MBUS_DATA_ACTIVE_HIGH; - cfg->type = V4L2_MBUS_BT656; + struct adv7180_state *state = to_state(sd); + + if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2) { + cfg->type = V4L2_MBUS_CSI2; + cfg->flags = V4L2_MBUS_CSI2_1_LANE | + V4L2_MBUS_CSI2_CHANNEL_0 | + V4L2_MBUS_CSI2_CONTINUOUS_CLOCK; + } else { + /* + * The ADV7180 sensor supports BT.601/656 output modes. + * The BT.656 is default and not yet configurable by s/w. + */ + cfg->flags = V4L2_MBUS_MASTER | V4L2_MBUS_PCLK_SAMPLE_RISING | + V4L2_MBUS_DATA_ACTIVE_HIGH; + cfg->type = V4L2_MBUS_BT656; + } return 0; } @@ -638,20 +680,32 @@ static int adv7180_select_input(struct adv7180_state *state, unsigned int input) static int adv7182_init(struct adv7180_state *state) { + if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2) + adv7180_write(state, ADV7180_REG_CSI_SLAVE_ADDR, + ADV7180_DEFAULT_CSI_I2C_ADDR << 1); + if (state->chip_info->flags & ADV7180_FLAG_V2) { /* ADI recommended writes for improved video quality */ adv7180_write(state, 0x0080, 0x51); adv7180_write(state, 0x0081, 0x51); adv7180_write(state, 0x0082, 0x68); - adv7180_write(state, 0x0004, 0x17); - } else { - adv7180_write(state, 0x0004, 0x07); } /* ADI required writes */ - adv7180_write(state, 0x0003, 0x0c); + if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2) { + adv7180_write(state, 0x0003, 0x4e); + adv7180_write(state, 0x0004, 0x57); + adv7180_write(state, 0x001d, 0xc0); + } else { + if (state->chip_info->flags & ADV7180_FLAG_V2) + adv7180_write(state, 0x0004, 0x17); + else + adv7180_write(state, 0x0004, 0x07); + adv7180_write(state, 0x0003, 0x0c); + adv7180_write(state, 0x001d, 0x40); + } + adv7180_write(state, 0x0013, 0x00); - adv7180_write(state, 0x001d, 0x40); return 0; } @@ -817,15 +871,81 @@ static const struct adv7180_chip_info adv7280_info = { .select_input = adv7182_select_input, }; +static const struct adv7180_chip_info adv7280_m_info = { + .flags = ADV7180_FLAG_V2 | ADV7180_FLAG_MIPI_CSI2, + .valid_input_mask = BIT(ADV7182_INPUT_CVBS_AIN1) | + BIT(ADV7182_INPUT_CVBS_AIN2) | + BIT(ADV7182_INPUT_CVBS_AIN3) | + BIT(ADV7182_INPUT_CVBS_AIN4) | + BIT(ADV7182_INPUT_CVBS_AIN5) | + BIT(ADV7182_INPUT_CVBS_AIN6) | + BIT(ADV7182_INPUT_CVBS_AIN7) | + BIT(ADV7182_INPUT_CVBS_AIN8) | + BIT(ADV7182_INPUT_SVIDEO_AIN1_AIN2) | + BIT(ADV7182_INPUT_SVIDEO_AIN3_AIN4) | + BIT(ADV7182_INPUT_SVIDEO_AIN5_AIN6) | + BIT(ADV7182_INPUT_SVIDEO_AIN7_AIN8) | + BIT(ADV7182_INPUT_YPRPB_AIN1_AIN2_AIN3) | + BIT(ADV7182_INPUT_YPRPB_AIN4_AIN5_AIN6), + .init = adv7182_init, + .set_std = adv7182_set_std, + .select_input = adv7182_select_input, +}; + static const struct adv7180_chip_info adv7281_info = { - .flags = ADV7180_FLAG_V2, + .flags = ADV7180_FLAG_V2 | ADV7180_FLAG_MIPI_CSI2, + .valid_input_mask = BIT(ADV7182_INPUT_CVBS_AIN1) | + BIT(ADV7182_INPUT_CVBS_AIN2) | + BIT(ADV7182_INPUT_CVBS_AIN7) | + BIT(ADV7182_INPUT_CVBS_AIN8) | + BIT(ADV7182_INPUT_SVIDEO_AIN1_AIN2) | + BIT(ADV7182_INPUT_SVIDEO_AIN7_AIN8) | + BIT(ADV7182_INPUT_DIFF_CVBS_AIN1_AIN2) | + BIT(ADV7182_INPUT_DIFF_CVBS_AIN7_AIN8), + .init = adv7182_init, + .set_std = adv7182_set_std, + .select_input = adv7182_select_input, +}; + +static const struct adv7180_chip_info adv7281_m_info = { + .flags = ADV7180_FLAG_V2 | ADV7180_FLAG_MIPI_CSI2, + .valid_input_mask = BIT(ADV7182_INPUT_CVBS_AIN1) | + BIT(ADV7182_INPUT_CVBS_AIN2) | + BIT(ADV7182_INPUT_CVBS_AIN3) | + BIT(ADV7182_INPUT_CVBS_AIN4) | + BIT(ADV7182_INPUT_CVBS_AIN7) | + BIT(ADV7182_INPUT_CVBS_AIN8) | + BIT(ADV7182_INPUT_SVIDEO_AIN1_AIN2) | + BIT(ADV7182_INPUT_SVIDEO_AIN3_AIN4) | + BIT(ADV7182_INPUT_SVIDEO_AIN7_AIN8) | + BIT(ADV7182_INPUT_YPRPB_AIN1_AIN2_AIN3) | + BIT(ADV7182_INPUT_DIFF_CVBS_AIN1_AIN2) | + BIT(ADV7182_INPUT_DIFF_CVBS_AIN3_AIN4) | + BIT(ADV7182_INPUT_DIFF_CVBS_AIN7_AIN8), + .init = adv7182_init, + .set_std = adv7182_set_std, + .select_input = adv7182_select_input, +}; + +static const struct adv7180_chip_info adv7281_ma_info = { + .flags = ADV7180_FLAG_V2 | ADV7180_FLAG_MIPI_CSI2, .valid_input_mask = BIT(ADV7182_INPUT_CVBS_AIN1) | BIT(ADV7182_INPUT_CVBS_AIN2) | + BIT(ADV7182_INPUT_CVBS_AIN3) | + BIT(ADV7182_INPUT_CVBS_AIN4) | + BIT(ADV7182_INPUT_CVBS_AIN5) | + BIT(ADV7182_INPUT_CVBS_AIN6) | BIT(ADV7182_INPUT_CVBS_AIN7) | BIT(ADV7182_INPUT_CVBS_AIN8) | BIT(ADV7182_INPUT_SVIDEO_AIN1_AIN2) | + BIT(ADV7182_INPUT_SVIDEO_AIN3_AIN4) | + BIT(ADV7182_INPUT_SVIDEO_AIN5_AIN6) | BIT(ADV7182_INPUT_SVIDEO_AIN7_AIN8) | + BIT(ADV7182_INPUT_YPRPB_AIN1_AIN2_AIN3) | + BIT(ADV7182_INPUT_YPRPB_AIN4_AIN5_AIN6) | BIT(ADV7182_INPUT_DIFF_CVBS_AIN1_AIN2) | + BIT(ADV7182_INPUT_DIFF_CVBS_AIN3_AIN4) | + BIT(ADV7182_INPUT_DIFF_CVBS_AIN5_AIN6) | BIT(ADV7182_INPUT_DIFF_CVBS_AIN7_AIN8), .init = adv7182_init, .set_std = adv7182_set_std, @@ -904,6 +1024,13 @@ static int adv7180_probe(struct i2c_client *client, state->client = client; state->chip_info = (struct adv7180_chip_info *)id->driver_data; + if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2) { + state->csi_client = i2c_new_dummy(client->adapter, + ADV7180_DEFAULT_CSI_I2C_ADDR); + if (!state->csi_client) + return -ENOMEM; + } + state->irq = client->irq; mutex_init(&state->mutex); state->autodetect = true; @@ -918,7 +1045,7 @@ static int adv7180_probe(struct i2c_client *client, ret = adv7180_init_controls(state); if (ret) - goto err_unreg_subdev; + goto err_unregister_csi_client; state->pad.flags = MEDIA_PAD_FL_SOURCE; sd->entity.flags |= MEDIA_ENT_T_V4L2_SUBDEV_DECODER; @@ -951,7 +1078,9 @@ err_media_entity_cleanup: media_entity_cleanup(&sd->entity); err_free_ctrl: adv7180_exit_controls(state); -err_unreg_subdev: +err_unregister_csi_client: + if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2) + i2c_unregister_device(state->csi_client); mutex_destroy(&state->mutex); return ret; } @@ -968,7 +1097,12 @@ static int adv7180_remove(struct i2c_client *client) media_entity_cleanup(&sd->entity); adv7180_exit_controls(state); + + if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2) + i2c_unregister_device(state->csi_client); + mutex_destroy(&state->mutex); + return 0; } @@ -976,8 +1110,12 @@ static const struct i2c_device_id adv7180_id[] = { { "adv7180", (kernel_ulong_t)&adv7180_info }, { "adv7182", (kernel_ulong_t)&adv7182_info }, { "adv7280", (kernel_ulong_t)&adv7280_info }, + { "adv7280-m", (kernel_ulong_t)&adv7280_m_info }, { "adv7281", (kernel_ulong_t)&adv7281_info }, + { "adv7281-m", (kernel_ulong_t)&adv7281_m_info }, + { "adv7281-ma", (kernel_ulong_t)&adv7281_ma_info }, { "adv7282", (kernel_ulong_t)&adv7281_info }, + { "adv7282-m", (kernel_ulong_t)&adv7281_m_info }, {}, }; MODULE_DEVICE_TABLE(i2c, adv7180_id); -- 2.11.0