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path: root/drivers/media/i2c/mt9m111.c
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Diffstat (limited to 'drivers/media/i2c/mt9m111.c')
-rw-r--r--drivers/media/i2c/mt9m111.c266
1 files changed, 263 insertions, 3 deletions
diff --git a/drivers/media/i2c/mt9m111.c b/drivers/media/i2c/mt9m111.c
index 1395986a07bb..d639b9bcf64a 100644
--- a/drivers/media/i2c/mt9m111.c
+++ b/drivers/media/i2c/mt9m111.c
@@ -15,12 +15,15 @@
#include <linux/delay.h>
#include <linux/v4l2-mediabus.h>
#include <linux/module.h>
+#include <linux/property.h>
#include <media/v4l2-async.h>
#include <media/v4l2-clk.h>
#include <media/v4l2-common.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-fwnode.h>
/*
* MT9M111, MT9M112 and MT9M131:
@@ -101,6 +104,7 @@
#define MT9M111_REDUCER_XSIZE_A 0x1a7
#define MT9M111_REDUCER_YZOOM_A 0x1a9
#define MT9M111_REDUCER_YSIZE_A 0x1aa
+#define MT9M111_EFFECTS_MODE 0x1e2
#define MT9M111_OUTPUT_FORMAT_CTRL2_A 0x13a
#define MT9M111_OUTPUT_FORMAT_CTRL2_B 0x19b
@@ -126,6 +130,9 @@
#define MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN (1 << 1)
#define MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B (1 << 0)
#define MT9M111_TPG_SEL_MASK GENMASK(2, 0)
+#define MT9M111_EFFECTS_MODE_MASK GENMASK(2, 0)
+#define MT9M111_RM_PWR_MASK BIT(10)
+#define MT9M111_RM_SKIP2_MASK GENMASK(3, 2)
/*
* Camera control register addresses (0x200..0x2ff not implemented)
@@ -204,6 +211,23 @@ static const struct mt9m111_datafmt mt9m111_colour_fmts[] = {
{MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE, V4L2_COLORSPACE_SRGB},
};
+enum mt9m111_mode_id {
+ MT9M111_MODE_SXGA_8FPS,
+ MT9M111_MODE_SXGA_15FPS,
+ MT9M111_MODE_QSXGA_30FPS,
+ MT9M111_NUM_MODES,
+};
+
+struct mt9m111_mode_info {
+ unsigned int sensor_w;
+ unsigned int sensor_h;
+ unsigned int max_image_w;
+ unsigned int max_image_h;
+ unsigned int max_fps;
+ unsigned int reg_val;
+ unsigned int reg_mask;
+};
+
struct mt9m111 {
struct v4l2_subdev subdev;
struct v4l2_ctrl_handler hdl;
@@ -213,15 +237,51 @@ struct mt9m111 {
struct v4l2_clk *clk;
unsigned int width; /* output */
unsigned int height; /* sizes */
+ struct v4l2_fract frame_interval;
+ const struct mt9m111_mode_info *current_mode;
struct mutex power_lock; /* lock to protect power_count */
int power_count;
const struct mt9m111_datafmt *fmt;
int lastpage; /* PageMap cache value */
+ bool is_streaming;
+ /* user point of view - 0: falling 1: rising edge */
+ unsigned int pclk_sample:1;
#ifdef CONFIG_MEDIA_CONTROLLER
struct media_pad pad;
#endif
};
+static const struct mt9m111_mode_info mt9m111_mode_data[MT9M111_NUM_MODES] = {
+ [MT9M111_MODE_SXGA_8FPS] = {
+ .sensor_w = 1280,
+ .sensor_h = 1024,
+ .max_image_w = 1280,
+ .max_image_h = 1024,
+ .max_fps = 8,
+ .reg_val = MT9M111_RM_LOW_POWER_RD,
+ .reg_mask = MT9M111_RM_PWR_MASK | MT9M111_RM_SKIP2_MASK,
+ },
+ [MT9M111_MODE_SXGA_15FPS] = {
+ .sensor_w = 1280,
+ .sensor_h = 1024,
+ .max_image_w = 1280,
+ .max_image_h = 1024,
+ .max_fps = 15,
+ .reg_val = MT9M111_RM_FULL_POWER_RD,
+ .reg_mask = MT9M111_RM_PWR_MASK | MT9M111_RM_SKIP2_MASK,
+ },
+ [MT9M111_MODE_QSXGA_30FPS] = {
+ .sensor_w = 1280,
+ .sensor_h = 1024,
+ .max_image_w = 640,
+ .max_image_h = 512,
+ .max_fps = 30,
+ .reg_val = MT9M111_RM_LOW_POWER_RD | MT9M111_RM_COL_SKIP_2X |
+ MT9M111_RM_ROW_SKIP_2X,
+ .reg_mask = MT9M111_RM_PWR_MASK | MT9M111_RM_SKIP2_MASK,
+ },
+};
+
/* Find a data format by a pixel code */
static const struct mt9m111_datafmt *mt9m111_find_datafmt(struct mt9m111 *mt9m111,
u32 code)
@@ -538,6 +598,10 @@ static int mt9m111_set_pixfmt(struct mt9m111 *mt9m111,
return -EINVAL;
}
+ /* receiver samples on falling edge, chip-hw default is rising */
+ if (mt9m111->pclk_sample == 0)
+ mask_outfmt2 |= MT9M111_OUTFMT_INV_PIX_CLOCK;
+
ret = mt9m111_reg_mask(client, context_a.output_fmt_ctrl2,
data_outfmt2, mask_outfmt2);
if (!ret)
@@ -559,6 +623,9 @@ static int mt9m111_set_fmt(struct v4l2_subdev *sd,
bool bayer;
int ret;
+ if (mt9m111->is_streaming)
+ return -EBUSY;
+
if (format->pad)
return -EINVAL;
@@ -611,6 +678,61 @@ static int mt9m111_set_fmt(struct v4l2_subdev *sd,
return ret;
}
+static const struct mt9m111_mode_info *
+mt9m111_find_mode(struct mt9m111 *mt9m111, unsigned int req_fps,
+ unsigned int width, unsigned int height)
+{
+ const struct mt9m111_mode_info *mode;
+ struct v4l2_rect *sensor_rect = &mt9m111->rect;
+ unsigned int gap, gap_best = (unsigned int) -1;
+ int i, best_gap_idx = MT9M111_MODE_SXGA_15FPS;
+ bool skip_30fps = false;
+
+ /*
+ * The fps selection is based on the row, column skipping mechanism.
+ * So ensure that the sensor window is set to default else the fps
+ * aren't calculated correctly within the sensor hw.
+ */
+ if (sensor_rect->width != MT9M111_MAX_WIDTH ||
+ sensor_rect->height != MT9M111_MAX_HEIGHT) {
+ dev_info(mt9m111->subdev.dev,
+ "Framerate selection is not supported for cropped "
+ "images\n");
+ return NULL;
+ }
+
+ /* 30fps only supported for images not exceeding 640x512 */
+ if (width > MT9M111_MAX_WIDTH / 2 || height > MT9M111_MAX_HEIGHT / 2) {
+ dev_dbg(mt9m111->subdev.dev,
+ "Framerates > 15fps are supported only for images "
+ "not exceeding 640x512\n");
+ skip_30fps = true;
+ }
+
+ /* find best matched fps */
+ for (i = 0; i < MT9M111_NUM_MODES; i++) {
+ unsigned int fps = mt9m111_mode_data[i].max_fps;
+
+ if (fps == 30 && skip_30fps)
+ continue;
+
+ gap = abs(fps - req_fps);
+ if (gap < gap_best) {
+ best_gap_idx = i;
+ gap_best = gap;
+ }
+ }
+
+ /*
+ * Use context a/b default timing values instead of calculate blanking
+ * timing values.
+ */
+ mode = &mt9m111_mode_data[best_gap_idx];
+ mt9m111->ctx = (best_gap_idx == MT9M111_MODE_QSXGA_30FPS) ? &context_a :
+ &context_b;
+ return mode;
+}
+
#ifdef CONFIG_VIDEO_ADV_DEBUG
static int mt9m111_g_register(struct v4l2_subdev *sd,
struct v4l2_dbg_register *reg)
@@ -726,6 +848,29 @@ static int mt9m111_set_test_pattern(struct mt9m111 *mt9m111, int val)
MT9M111_TPG_SEL_MASK);
}
+static int mt9m111_set_colorfx(struct mt9m111 *mt9m111, int val)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
+ static const struct v4l2_control colorfx[] = {
+ { V4L2_COLORFX_NONE, 0 },
+ { V4L2_COLORFX_BW, 1 },
+ { V4L2_COLORFX_SEPIA, 2 },
+ { V4L2_COLORFX_NEGATIVE, 3 },
+ { V4L2_COLORFX_SOLARIZATION, 4 },
+ };
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(colorfx); i++) {
+ if (colorfx[i].id == val) {
+ return mt9m111_reg_mask(client, MT9M111_EFFECTS_MODE,
+ colorfx[i].value,
+ MT9M111_EFFECTS_MODE_MASK);
+ }
+ }
+
+ return -EINVAL;
+}
+
static int mt9m111_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct mt9m111 *mt9m111 = container_of(ctrl->handler,
@@ -746,6 +891,8 @@ static int mt9m111_s_ctrl(struct v4l2_ctrl *ctrl)
return mt9m111_set_autowhitebalance(mt9m111, ctrl->val);
case V4L2_CID_TEST_PATTERN:
return mt9m111_set_test_pattern(mt9m111, ctrl->val);
+ case V4L2_CID_COLORFX:
+ return mt9m111_set_colorfx(mt9m111, ctrl->val);
}
return -EINVAL;
@@ -771,11 +918,16 @@ static int mt9m111_suspend(struct mt9m111 *mt9m111)
static void mt9m111_restore_state(struct mt9m111 *mt9m111)
{
+ struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
+
mt9m111_set_context(mt9m111, mt9m111->ctx);
mt9m111_set_pixfmt(mt9m111, mt9m111->fmt->code);
mt9m111_setup_geometry(mt9m111, &mt9m111->rect,
mt9m111->width, mt9m111->height, mt9m111->fmt->code);
v4l2_ctrl_handler_setup(&mt9m111->hdl);
+ mt9m111_reg_mask(client, mt9m111->ctx->read_mode,
+ mt9m111->current_mode->reg_val,
+ mt9m111->current_mode->reg_mask);
}
static int mt9m111_resume(struct mt9m111 *mt9m111)
@@ -862,12 +1014,62 @@ static const struct v4l2_ctrl_ops mt9m111_ctrl_ops = {
static const struct v4l2_subdev_core_ops mt9m111_subdev_core_ops = {
.s_power = mt9m111_s_power,
+ .log_status = v4l2_ctrl_subdev_log_status,
+ .subscribe_event = v4l2_ctrl_subdev_subscribe_event,
+ .unsubscribe_event = v4l2_event_subdev_unsubscribe,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.g_register = mt9m111_g_register,
.s_register = mt9m111_s_register,
#endif
};
+static int mt9m111_g_frame_interval(struct v4l2_subdev *sd,
+ struct v4l2_subdev_frame_interval *fi)
+{
+ struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
+
+ fi->interval = mt9m111->frame_interval;
+
+ return 0;
+}
+
+static int mt9m111_s_frame_interval(struct v4l2_subdev *sd,
+ struct v4l2_subdev_frame_interval *fi)
+{
+ struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
+ const struct mt9m111_mode_info *mode;
+ struct v4l2_fract *fract = &fi->interval;
+ int fps;
+
+ if (mt9m111->is_streaming)
+ return -EBUSY;
+
+ if (fi->pad != 0)
+ return -EINVAL;
+
+ if (fract->numerator == 0) {
+ fract->denominator = 30;
+ fract->numerator = 1;
+ }
+
+ fps = DIV_ROUND_CLOSEST(fract->denominator, fract->numerator);
+
+ /* Find best fitting mode. Do not update the mode if no one was found. */
+ mode = mt9m111_find_mode(mt9m111, fps, mt9m111->width, mt9m111->height);
+ if (!mode)
+ return 0;
+
+ if (mode->max_fps != fps) {
+ fract->denominator = mode->max_fps;
+ fract->numerator = 1;
+ }
+
+ mt9m111->current_mode = mode;
+ mt9m111->frame_interval = fi->interval;
+
+ return 0;
+}
+
static int mt9m111_enum_mbus_code(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_mbus_code_enum *code)
@@ -879,12 +1081,26 @@ static int mt9m111_enum_mbus_code(struct v4l2_subdev *sd,
return 0;
}
+static int mt9m111_s_stream(struct v4l2_subdev *sd, int enable)
+{
+ struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
+
+ mt9m111->is_streaming = !!enable;
+ return 0;
+}
+
static int mt9m111_g_mbus_config(struct v4l2_subdev *sd,
struct v4l2_mbus_config *cfg)
{
- cfg->flags = V4L2_MBUS_MASTER | V4L2_MBUS_PCLK_SAMPLE_RISING |
+ struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
+
+ cfg->flags = V4L2_MBUS_MASTER |
V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_HIGH |
V4L2_MBUS_DATA_ACTIVE_HIGH;
+
+ cfg->flags |= mt9m111->pclk_sample ? V4L2_MBUS_PCLK_SAMPLE_RISING :
+ V4L2_MBUS_PCLK_SAMPLE_FALLING;
+
cfg->type = V4L2_MBUS_PARALLEL;
return 0;
@@ -892,6 +1108,9 @@ static int mt9m111_g_mbus_config(struct v4l2_subdev *sd,
static const struct v4l2_subdev_video_ops mt9m111_subdev_video_ops = {
.g_mbus_config = mt9m111_g_mbus_config,
+ .s_stream = mt9m111_s_stream,
+ .g_frame_interval = mt9m111_g_frame_interval,
+ .s_frame_interval = mt9m111_s_frame_interval,
};
static const struct v4l2_subdev_pad_ops mt9m111_subdev_pad_ops = {
@@ -951,6 +1170,30 @@ done:
return ret;
}
+static int mt9m111_probe_fw(struct i2c_client *client, struct mt9m111 *mt9m111)
+{
+ struct v4l2_fwnode_endpoint bus_cfg = {
+ .bus_type = V4L2_MBUS_PARALLEL
+ };
+ struct fwnode_handle *np;
+ int ret;
+
+ np = fwnode_graph_get_next_endpoint(dev_fwnode(&client->dev), NULL);
+ if (!np)
+ return -EINVAL;
+
+ ret = v4l2_fwnode_endpoint_parse(np, &bus_cfg);
+ if (ret)
+ goto out_put_fw;
+
+ mt9m111->pclk_sample = !!(bus_cfg.bus.parallel.flags &
+ V4L2_MBUS_PCLK_SAMPLE_RISING);
+
+out_put_fw:
+ fwnode_handle_put(np);
+ return ret;
+}
+
static int mt9m111_probe(struct i2c_client *client,
const struct i2c_device_id *did)
{
@@ -968,6 +1211,10 @@ static int mt9m111_probe(struct i2c_client *client,
if (!mt9m111)
return -ENOMEM;
+ ret = mt9m111_probe_fw(client, mt9m111);
+ if (ret)
+ return ret;
+
mt9m111->clk = v4l2_clk_get(&client->dev, "mclk");
if (IS_ERR(mt9m111->clk))
return PTR_ERR(mt9m111->clk);
@@ -976,9 +1223,10 @@ static int mt9m111_probe(struct i2c_client *client,
mt9m111->ctx = &context_b;
v4l2_i2c_subdev_init(&mt9m111->subdev, client, &mt9m111_subdev_ops);
- mt9m111->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+ mt9m111->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
+ V4L2_SUBDEV_FL_HAS_EVENTS;
- v4l2_ctrl_handler_init(&mt9m111->hdl, 5);
+ v4l2_ctrl_handler_init(&mt9m111->hdl, 7);
v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops,
V4L2_CID_VFLIP, 0, 1, 1, 0);
v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops,
@@ -994,6 +1242,14 @@ static int mt9m111_probe(struct i2c_client *client,
&mt9m111_ctrl_ops, V4L2_CID_TEST_PATTERN,
ARRAY_SIZE(mt9m111_test_pattern_menu) - 1, 0, 0,
mt9m111_test_pattern_menu);
+ v4l2_ctrl_new_std_menu(&mt9m111->hdl, &mt9m111_ctrl_ops,
+ V4L2_CID_COLORFX, V4L2_COLORFX_SOLARIZATION,
+ ~(BIT(V4L2_COLORFX_NONE) |
+ BIT(V4L2_COLORFX_BW) |
+ BIT(V4L2_COLORFX_SEPIA) |
+ BIT(V4L2_COLORFX_NEGATIVE) |
+ BIT(V4L2_COLORFX_SOLARIZATION)),
+ V4L2_COLORFX_NONE);
mt9m111->subdev.ctrl_handler = &mt9m111->hdl;
if (mt9m111->hdl.error) {
ret = mt9m111->hdl.error;
@@ -1008,6 +1264,10 @@ static int mt9m111_probe(struct i2c_client *client,
goto out_hdlfree;
#endif
+ mt9m111->current_mode = &mt9m111_mode_data[MT9M111_MODE_SXGA_15FPS];
+ mt9m111->frame_interval.numerator = 1;
+ mt9m111->frame_interval.denominator = mt9m111->current_mode->max_fps;
+
/* Second stage probe - when a capture adapter is there */
mt9m111->rect.left = MT9M111_MIN_DARK_COLS;
mt9m111->rect.top = MT9M111_MIN_DARK_ROWS;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.