diff options
Diffstat (limited to 'drivers/media/i2c/imx415.c')
| -rw-r--r-- | drivers/media/i2c/imx415.c | 183 |
1 files changed, 94 insertions, 89 deletions
diff --git a/drivers/media/i2c/imx415.c b/drivers/media/i2c/imx415.c index 3f7924aa1bd3..9f37779bd611 100644 --- a/drivers/media/i2c/imx415.c +++ b/drivers/media/i2c/imx415.c @@ -26,6 +26,10 @@ #define IMX415_PIXEL_ARRAY_WIDTH 3864 #define IMX415_PIXEL_ARRAY_HEIGHT 2192 #define IMX415_PIXEL_ARRAY_VBLANK 58 +#define IMX415_EXPOSURE_OFFSET 8 + +#define IMX415_PIXEL_RATE_74_25MHZ 891000000 +#define IMX415_PIXEL_RATE_72MHZ 864000000 #define IMX415_NUM_CLK_PARAM_REGS 11 @@ -51,7 +55,10 @@ #define IMX415_OUTSEL CCI_REG8(0x30c0) #define IMX415_DRV CCI_REG8(0x30c1) #define IMX415_VMAX CCI_REG24_LE(0x3024) +#define IMX415_VMAX_MAX 0xfffff #define IMX415_HMAX CCI_REG16_LE(0x3028) +#define IMX415_HMAX_MAX 0xffff +#define IMX415_HMAX_MULTIPLIER 12 #define IMX415_SHR0 CCI_REG24_LE(0x3050) #define IMX415_GAIN_PCG_0 CCI_REG16_LE(0x3090) #define IMX415_AGAIN_MIN 0 @@ -445,11 +452,8 @@ static const struct imx415_clk_params imx415_clk_params[] = { }, }; -/* all-pixel 2-lane 720 Mbps 15.74 Hz mode */ -static const struct cci_reg_sequence imx415_mode_2_720[] = { - { IMX415_VMAX, 0x08CA }, - { IMX415_HMAX, 0x07F0 }, - { IMX415_LANEMODE, IMX415_LANEMODE_2 }, +/* 720 Mbps CSI configuration */ +static const struct cci_reg_sequence imx415_linkrate_720mbps[] = { { IMX415_TCLKPOST, 0x006F }, { IMX415_TCLKPREPARE, 0x002F }, { IMX415_TCLKTRAIL, 0x002F }, @@ -461,11 +465,8 @@ static const struct cci_reg_sequence imx415_mode_2_720[] = { { IMX415_TLPX, 0x0027 }, }; -/* all-pixel 2-lane 1440 Mbps 30.01 Hz mode */ -static const struct cci_reg_sequence imx415_mode_2_1440[] = { - { IMX415_VMAX, 0x08CA }, - { IMX415_HMAX, 0x042A }, - { IMX415_LANEMODE, IMX415_LANEMODE_2 }, +/* 1440 Mbps CSI configuration */ +static const struct cci_reg_sequence imx415_linkrate_1440mbps[] = { { IMX415_TCLKPOST, 0x009F }, { IMX415_TCLKPREPARE, 0x0057 }, { IMX415_TCLKTRAIL, 0x0057 }, @@ -477,11 +478,8 @@ static const struct cci_reg_sequence imx415_mode_2_1440[] = { { IMX415_TLPX, 0x004F }, }; -/* all-pixel 4-lane 891 Mbps 30 Hz mode */ -static const struct cci_reg_sequence imx415_mode_4_891[] = { - { IMX415_VMAX, 0x08CA }, - { IMX415_HMAX, 0x044C }, - { IMX415_LANEMODE, IMX415_LANEMODE_4 }, +/* 891 Mbps CSI configuration */ +static const struct cci_reg_sequence imx415_linkrate_891mbps[] = { { IMX415_TCLKPOST, 0x007F }, { IMX415_TCLKPREPARE, 0x0037 }, { IMX415_TCLKTRAIL, 0x0037 }, @@ -498,39 +496,9 @@ struct imx415_mode_reg_list { const struct cci_reg_sequence *regs; }; -/* - * Mode : number of lanes, lane rate and frame rate dependent settings - * - * pixel_rate and hmax_pix are needed to calculate hblank for the v4l2 ctrl - * interface. These values can not be found in the data sheet and should be - * treated as virtual values. Use following table when adding new modes. - * - * lane_rate lanes fps hmax_pix pixel_rate - * - * 594 2 10.000 4400 99000000 - * 891 2 15.000 4400 148500000 - * 720 2 15.748 4064 144000000 - * 1782 2 30.000 4400 297000000 - * 2079 2 30.000 4400 297000000 - * 1440 2 30.019 4510 304615385 - * - * 594 4 20.000 5500 247500000 - * 594 4 25.000 4400 247500000 - * 720 4 25.000 4400 247500000 - * 720 4 30.019 4510 304615385 - * 891 4 30.000 4400 297000000 - * 1440 4 30.019 4510 304615385 - * 1440 4 60.038 4510 609230769 - * 1485 4 60.000 4400 594000000 - * 1782 4 60.000 4400 594000000 - * 2079 4 60.000 4400 594000000 - * 2376 4 90.164 4392 891000000 - */ struct imx415_mode { u64 lane_rate; - u32 lanes; - u32 hmax_pix; - u64 pixel_rate; + u32 hmax_min[2]; struct imx415_mode_reg_list reg_list; }; @@ -538,32 +506,26 @@ struct imx415_mode { static const struct imx415_mode supported_modes[] = { { .lane_rate = 720000000, - .lanes = 2, - .hmax_pix = 4064, - .pixel_rate = 144000000, + .hmax_min = { 2032, 1066 }, .reg_list = { - .num_of_regs = ARRAY_SIZE(imx415_mode_2_720), - .regs = imx415_mode_2_720, + .num_of_regs = ARRAY_SIZE(imx415_linkrate_720mbps), + .regs = imx415_linkrate_720mbps, }, }, { .lane_rate = 1440000000, - .lanes = 2, - .hmax_pix = 4510, - .pixel_rate = 304615385, + .hmax_min = { 1066, 533 }, .reg_list = { - .num_of_regs = ARRAY_SIZE(imx415_mode_2_1440), - .regs = imx415_mode_2_1440, + .num_of_regs = ARRAY_SIZE(imx415_linkrate_1440mbps), + .regs = imx415_linkrate_1440mbps, }, }, { .lane_rate = 891000000, - .lanes = 4, - .hmax_pix = 4400, - .pixel_rate = 297000000, + .hmax_min = { 2200, 1100 }, .reg_list = { - .num_of_regs = ARRAY_SIZE(imx415_mode_4_891), - .regs = imx415_mode_4_891, + .num_of_regs = ARRAY_SIZE(imx415_linkrate_891mbps), + .regs = imx415_linkrate_891mbps, }, }, }; @@ -587,6 +549,7 @@ static const char *const imx415_test_pattern_menu[] = { struct imx415 { struct device *dev; struct clk *clk; + unsigned long pixel_rate; struct regulator_bulk_data supplies[ARRAY_SIZE(imx415_supply_names)]; struct gpio_desc *reset; struct regmap *regmap; @@ -598,8 +561,10 @@ struct imx415 { struct v4l2_ctrl_handler ctrls; struct v4l2_ctrl *vblank; + struct v4l2_ctrl *hblank; struct v4l2_ctrl *hflip; struct v4l2_ctrl *vflip; + struct v4l2_ctrl *exposure; unsigned int cur_mode; unsigned int num_data_lanes; @@ -730,17 +695,38 @@ static int imx415_s_ctrl(struct v4l2_ctrl *ctrl) ctrls); const struct v4l2_mbus_framefmt *format; struct v4l2_subdev_state *state; + u32 exposure_max; unsigned int vmax; unsigned int flip; int ret; - if (!pm_runtime_get_if_in_use(sensor->dev)) - return 0; - state = v4l2_subdev_get_locked_active_state(&sensor->subdev); format = v4l2_subdev_state_get_format(state, 0); + if (ctrl->id == V4L2_CID_VBLANK) { + exposure_max = format->height + ctrl->val - + IMX415_EXPOSURE_OFFSET; + __v4l2_ctrl_modify_range(sensor->exposure, + sensor->exposure->minimum, + exposure_max, sensor->exposure->step, + sensor->exposure->default_value); + } + + if (!pm_runtime_get_if_in_use(sensor->dev)) + return 0; + switch (ctrl->id) { + case V4L2_CID_VBLANK: + ret = cci_write(sensor->regmap, IMX415_VMAX, + format->height + ctrl->val, NULL); + if (ret) + return ret; + /* + * Exposure is set based on VMAX which has just changed, so + * program exposure register as well + */ + ctrl = sensor->exposure; + fallthrough; case V4L2_CID_EXPOSURE: /* clamp the exposure value to VMAX. */ vmax = format->height + sensor->vblank->cur.val; @@ -766,6 +752,13 @@ static int imx415_s_ctrl(struct v4l2_ctrl *ctrl) ret = imx415_set_testpattern(sensor, ctrl->val); break; + case V4L2_CID_HBLANK: + ret = cci_write(sensor->regmap, IMX415_HMAX, + (format->width + ctrl->val) / + IMX415_HMAX_MULTIPLIER, + NULL); + break; + default: ret = -EINVAL; break; @@ -784,11 +777,12 @@ static int imx415_ctrls_init(struct imx415 *sensor) { struct v4l2_fwnode_device_properties props; struct v4l2_ctrl *ctrl; - u64 pixel_rate = supported_modes[sensor->cur_mode].pixel_rate; - u64 lane_rate = supported_modes[sensor->cur_mode].lane_rate; + const struct imx415_mode *cur_mode = &supported_modes[sensor->cur_mode]; + u64 lane_rate = cur_mode->lane_rate; u32 exposure_max = IMX415_PIXEL_ARRAY_HEIGHT + - IMX415_PIXEL_ARRAY_VBLANK - 8; - u32 hblank; + IMX415_PIXEL_ARRAY_VBLANK - + IMX415_EXPOSURE_OFFSET; + u32 hblank_min, hblank_max; unsigned int i; int ret; @@ -816,36 +810,33 @@ static int imx415_ctrls_init(struct imx415 *sensor) if (ctrl) ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY; - v4l2_ctrl_new_std(&sensor->ctrls, &imx415_ctrl_ops, V4L2_CID_EXPOSURE, - 4, exposure_max, 1, exposure_max); + sensor->exposure = v4l2_ctrl_new_std(&sensor->ctrls, &imx415_ctrl_ops, + V4L2_CID_EXPOSURE, 4, + exposure_max, 1, exposure_max); v4l2_ctrl_new_std(&sensor->ctrls, &imx415_ctrl_ops, V4L2_CID_ANALOGUE_GAIN, IMX415_AGAIN_MIN, IMX415_AGAIN_MAX, IMX415_AGAIN_STEP, IMX415_AGAIN_MIN); - hblank = supported_modes[sensor->cur_mode].hmax_pix - - IMX415_PIXEL_ARRAY_WIDTH; + hblank_min = (cur_mode->hmax_min[sensor->num_data_lanes == 2 ? 0 : 1] * + IMX415_HMAX_MULTIPLIER) - IMX415_PIXEL_ARRAY_WIDTH; + hblank_max = (IMX415_HMAX_MAX * IMX415_HMAX_MULTIPLIER) - + IMX415_PIXEL_ARRAY_WIDTH; ctrl = v4l2_ctrl_new_std(&sensor->ctrls, &imx415_ctrl_ops, - V4L2_CID_HBLANK, hblank, hblank, 1, hblank); - if (ctrl) - ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY; + V4L2_CID_HBLANK, hblank_min, + hblank_max, IMX415_HMAX_MULTIPLIER, + hblank_min); sensor->vblank = v4l2_ctrl_new_std(&sensor->ctrls, &imx415_ctrl_ops, V4L2_CID_VBLANK, IMX415_PIXEL_ARRAY_VBLANK, - IMX415_PIXEL_ARRAY_VBLANK, 1, - IMX415_PIXEL_ARRAY_VBLANK); - if (sensor->vblank) - sensor->vblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; + IMX415_VMAX_MAX - IMX415_PIXEL_ARRAY_HEIGHT, + 1, IMX415_PIXEL_ARRAY_VBLANK); - /* - * The pixel rate used here is a virtual value and can be used for - * calculating the frame rate together with hblank. It may not - * necessarily be the physically correct pixel clock. - */ - v4l2_ctrl_new_std(&sensor->ctrls, NULL, V4L2_CID_PIXEL_RATE, pixel_rate, - pixel_rate, 1, pixel_rate); + v4l2_ctrl_new_std(&sensor->ctrls, NULL, V4L2_CID_PIXEL_RATE, + sensor->pixel_rate, sensor->pixel_rate, 1, + sensor->pixel_rate); sensor->hflip = v4l2_ctrl_new_std(&sensor->ctrls, &imx415_ctrl_ops, V4L2_CID_HFLIP, 0, 1, 1, 0); @@ -890,7 +881,12 @@ static int imx415_set_mode(struct imx415 *sensor, int mode) IMX415_NUM_CLK_PARAM_REGS, &ret); - return 0; + ret = cci_write(sensor->regmap, IMX415_LANEMODE, + sensor->num_data_lanes == 2 ? IMX415_LANEMODE_2 : + IMX415_LANEMODE_4, + NULL); + + return ret; } static int imx415_setup(struct imx415 *sensor, struct v4l2_subdev_state *state) @@ -1301,8 +1297,6 @@ static int imx415_parse_hw_config(struct imx415 *sensor) } for (j = 0; j < ARRAY_SIZE(supported_modes); ++j) { - if (sensor->num_data_lanes != supported_modes[j].lanes) - continue; if (bus_cfg.link_frequencies[i] * 2 != supported_modes[j].lane_rate) continue; @@ -1317,6 +1311,17 @@ static int imx415_parse_hw_config(struct imx415 *sensor) "no valid sensor mode defined\n"); goto done_endpoint_free; } + switch (inck) { + case 27000000: + case 37125000: + case 74250000: + sensor->pixel_rate = IMX415_PIXEL_RATE_74_25MHZ; + break; + case 24000000: + case 72000000: + sensor->pixel_rate = IMX415_PIXEL_RATE_72MHZ; + break; + } lane_rate = supported_modes[sensor->cur_mode].lane_rate; for (i = 0; i < ARRAY_SIZE(imx415_clk_params); ++i) { |