diff options
Diffstat (limited to 'drivers/staging/media/atomisp/i2c/atomisp-mt9m114.c')
| -rw-r--r-- | drivers/staging/media/atomisp/i2c/atomisp-mt9m114.c | 1908 |
1 files changed, 0 insertions, 1908 deletions
diff --git a/drivers/staging/media/atomisp/i2c/atomisp-mt9m114.c b/drivers/staging/media/atomisp/i2c/atomisp-mt9m114.c deleted file mode 100644 index 8e180f903335..000000000000 --- a/drivers/staging/media/atomisp/i2c/atomisp-mt9m114.c +++ /dev/null @@ -1,1908 +0,0 @@ -/* - * Support for mt9m114 Camera Sensor. - * - * Copyright (c) 2010 Intel Corporation. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License version - * 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/string.h> -#include <linux/errno.h> -#include <linux/init.h> -#include <linux/kmod.h> -#include <linux/device.h> -#include <linux/fs.h> -#include <linux/slab.h> -#include <linux/delay.h> -#include <linux/i2c.h> -#include <linux/acpi.h> -#include "../include/linux/atomisp_gmin_platform.h" -#include <media/v4l2-device.h> - -#include "mt9m114.h" - -#define to_mt9m114_sensor(sd) container_of(sd, struct mt9m114_device, sd) - -/* - * TODO: use debug parameter to actually define when debug messages should - * be printed. - */ -static int debug; -static int aaalock; -module_param(debug, int, 0644); -MODULE_PARM_DESC(debug, "Debug level (0-1)"); - -static int mt9m114_t_vflip(struct v4l2_subdev *sd, int value); -static int mt9m114_t_hflip(struct v4l2_subdev *sd, int value); -static int mt9m114_wait_state(struct i2c_client *client, int timeout); - -static int -mt9m114_read_reg(struct i2c_client *client, u16 data_length, u32 reg, u32 *val) -{ - int err; - struct i2c_msg msg[2]; - unsigned char data[4]; - - if (!client->adapter) { - v4l2_err(client, "%s error, no client->adapter\n", __func__); - return -ENODEV; - } - - if (data_length != MISENSOR_8BIT && data_length != MISENSOR_16BIT - && data_length != MISENSOR_32BIT) { - v4l2_err(client, "%s error, invalid data length\n", __func__); - return -EINVAL; - } - - msg[0].addr = client->addr; - msg[0].flags = 0; - msg[0].len = MSG_LEN_OFFSET; - msg[0].buf = data; - - /* high byte goes out first */ - data[0] = (u16) (reg >> 8); - data[1] = (u16) (reg & 0xff); - - msg[1].addr = client->addr; - msg[1].len = data_length; - msg[1].flags = I2C_M_RD; - msg[1].buf = data; - - err = i2c_transfer(client->adapter, msg, 2); - - if (err >= 0) { - *val = 0; - /* high byte comes first */ - if (data_length == MISENSOR_8BIT) - *val = data[0]; - else if (data_length == MISENSOR_16BIT) - *val = data[1] + (data[0] << 8); - else - *val = data[3] + (data[2] << 8) + - (data[1] << 16) + (data[0] << 24); - - return 0; - } - - dev_err(&client->dev, "read from offset 0x%x error %d", reg, err); - return err; -} - -static int -mt9m114_write_reg(struct i2c_client *client, u16 data_length, u16 reg, u32 val) -{ - int num_msg; - struct i2c_msg msg; - unsigned char data[6] = {0}; - __be16 *wreg; - int retry = 0; - - if (!client->adapter) { - v4l2_err(client, "%s error, no client->adapter\n", __func__); - return -ENODEV; - } - - if (data_length != MISENSOR_8BIT && data_length != MISENSOR_16BIT - && data_length != MISENSOR_32BIT) { - v4l2_err(client, "%s error, invalid data_length\n", __func__); - return -EINVAL; - } - - memset(&msg, 0, sizeof(msg)); - -again: - msg.addr = client->addr; - msg.flags = 0; - msg.len = 2 + data_length; - msg.buf = data; - - /* high byte goes out first */ - wreg = (void *)data; - *wreg = cpu_to_be16(reg); - - if (data_length == MISENSOR_8BIT) { - data[2] = (u8)(val); - } else if (data_length == MISENSOR_16BIT) { - u16 *wdata = (void *)&data[2]; - - *wdata = be16_to_cpu(*(__be16 *)&data[2]); - } else { - /* MISENSOR_32BIT */ - u32 *wdata = (void *)&data[2]; - - *wdata = be32_to_cpu(*(__be32 *)&data[2]); - } - - num_msg = i2c_transfer(client->adapter, &msg, 1); - - /* - * HACK: Need some delay here for Rev 2 sensors otherwise some - * registers do not seem to load correctly. - */ - mdelay(1); - - if (num_msg >= 0) - return 0; - - dev_err(&client->dev, "write error: wrote 0x%x to offset 0x%x error %d", - val, reg, num_msg); - if (retry <= I2C_RETRY_COUNT) { - dev_dbg(&client->dev, "retrying... %d", retry); - retry++; - msleep(20); - goto again; - } - - return num_msg; -} - -/** - * misensor_rmw_reg - Read/Modify/Write a value to a register in the sensor - * device - * @client: i2c driver client structure - * @data_length: 8/16/32-bits length - * @reg: register address - * @mask: masked out bits - * @set: bits set - * - * Read/modify/write a value to a register in the sensor device. - * Returns zero if successful, or non-zero otherwise. - */ -static int -misensor_rmw_reg(struct i2c_client *client, u16 data_length, u16 reg, - u32 mask, u32 set) -{ - int err; - u32 val; - - /* Exit when no mask */ - if (mask == 0) - return 0; - - /* @mask must not exceed data length */ - switch (data_length) { - case MISENSOR_8BIT: - if (mask & ~0xff) - return -EINVAL; - break; - case MISENSOR_16BIT: - if (mask & ~0xffff) - return -EINVAL; - break; - case MISENSOR_32BIT: - break; - default: - /* Wrong @data_length */ - return -EINVAL; - } - - err = mt9m114_read_reg(client, data_length, reg, &val); - if (err) { - v4l2_err(client, "misensor_rmw_reg error exit, read failed\n"); - return -EINVAL; - } - - val &= ~mask; - - /* - * Perform the OR function if the @set exists. - * Shift @set value to target bit location. @set should set only - * bits included in @mask. - * - * REVISIT: This function expects @set to be non-shifted. Its shift - * value is then defined to be equal to mask's LSB position. - * How about to inform values in their right offset position and avoid - * this unneeded shift operation? - */ - set <<= ffs(mask) - 1; - val |= set & mask; - - err = mt9m114_write_reg(client, data_length, reg, val); - if (err) { - v4l2_err(client, "misensor_rmw_reg error exit, write failed\n"); - return -EINVAL; - } - - return 0; -} - - -static int __mt9m114_flush_reg_array(struct i2c_client *client, - struct mt9m114_write_ctrl *ctrl) -{ - struct i2c_msg msg; - const int num_msg = 1; - int ret; - int retry = 0; - __be16 *data16 = (void *)&ctrl->buffer.addr; - - if (ctrl->index == 0) - return 0; - -again: - msg.addr = client->addr; - msg.flags = 0; - msg.len = 2 + ctrl->index; - *data16 = cpu_to_be16(ctrl->buffer.addr); - msg.buf = (u8 *)&ctrl->buffer; - - ret = i2c_transfer(client->adapter, &msg, num_msg); - if (ret != num_msg) { - if (++retry <= I2C_RETRY_COUNT) { - dev_dbg(&client->dev, "retrying... %d\n", retry); - msleep(20); - goto again; - } - dev_err(&client->dev, "%s: i2c transfer error\n", __func__); - return -EIO; - } - - ctrl->index = 0; - - /* - * REVISIT: Previously we had a delay after writing data to sensor. - * But it was removed as our tests have shown it is not necessary - * anymore. - */ - - return 0; -} - -static int __mt9m114_buf_reg_array(struct i2c_client *client, - struct mt9m114_write_ctrl *ctrl, - const struct misensor_reg *next) -{ - __be16 *data16; - __be32 *data32; - int err; - - /* Insufficient buffer? Let's flush and get more free space. */ - if (ctrl->index + next->length >= MT9M114_MAX_WRITE_BUF_SIZE) { - err = __mt9m114_flush_reg_array(client, ctrl); - if (err) - return err; - } - - switch (next->length) { - case MISENSOR_8BIT: - ctrl->buffer.data[ctrl->index] = (u8)next->val; - break; - case MISENSOR_16BIT: - data16 = (__be16 *)&ctrl->buffer.data[ctrl->index]; - *data16 = cpu_to_be16((u16)next->val); - break; - case MISENSOR_32BIT: - data32 = (__be32 *)&ctrl->buffer.data[ctrl->index]; - *data32 = cpu_to_be32(next->val); - break; - default: - return -EINVAL; - } - - /* When first item is added, we need to store its starting address */ - if (ctrl->index == 0) - ctrl->buffer.addr = next->reg; - - ctrl->index += next->length; - - return 0; -} - -static int -__mt9m114_write_reg_is_consecutive(struct i2c_client *client, - struct mt9m114_write_ctrl *ctrl, - const struct misensor_reg *next) -{ - if (ctrl->index == 0) - return 1; - - return ctrl->buffer.addr + ctrl->index == next->reg; -} - -/* - * mt9m114_write_reg_array - Initializes a list of mt9m114 registers - * @client: i2c driver client structure - * @reglist: list of registers to be written - * @poll: completion polling requirement - * This function initializes a list of registers. When consecutive addresses - * are found in a row on the list, this function creates a buffer and sends - * consecutive data in a single i2c_transfer(). - * - * __mt9m114_flush_reg_array, __mt9m114_buf_reg_array() and - * __mt9m114_write_reg_is_consecutive() are internal functions to - * mt9m114_write_reg_array() and should be not used anywhere else. - * - */ -static int mt9m114_write_reg_array(struct i2c_client *client, - const struct misensor_reg *reglist, - int poll) -{ - const struct misensor_reg *next = reglist; - struct mt9m114_write_ctrl ctrl; - int err; - - if (poll == PRE_POLLING) { - err = mt9m114_wait_state(client, MT9M114_WAIT_STAT_TIMEOUT); - if (err) - return err; - } - - ctrl.index = 0; - for (; next->length != MISENSOR_TOK_TERM; next++) { - switch (next->length & MISENSOR_TOK_MASK) { - case MISENSOR_TOK_DELAY: - err = __mt9m114_flush_reg_array(client, &ctrl); - if (err) - return err; - msleep(next->val); - break; - case MISENSOR_TOK_RMW: - err = __mt9m114_flush_reg_array(client, &ctrl); - err |= misensor_rmw_reg(client, - next->length & - ~MISENSOR_TOK_RMW, - next->reg, next->val, - next->val2); - if (err) { - dev_err(&client->dev, "%s read err. aborted\n", - __func__); - return -EINVAL; - } - break; - default: - /* - * If next address is not consecutive, data needs to be - * flushed before proceed. - */ - if (!__mt9m114_write_reg_is_consecutive(client, &ctrl, - next)) { - err = __mt9m114_flush_reg_array(client, &ctrl); - if (err) - return err; - } - err = __mt9m114_buf_reg_array(client, &ctrl, next); - if (err) { - v4l2_err(client, "%s: write error, aborted\n", - __func__); - return err; - } - break; - } - } - - err = __mt9m114_flush_reg_array(client, &ctrl); - if (err) - return err; - - if (poll == POST_POLLING) - return mt9m114_wait_state(client, MT9M114_WAIT_STAT_TIMEOUT); - - return 0; -} - -static int mt9m114_wait_state(struct i2c_client *client, int timeout) -{ - int ret; - unsigned int val; - - while (timeout-- > 0) { - ret = mt9m114_read_reg(client, MISENSOR_16BIT, 0x0080, &val); - if (ret) - return ret; - if ((val & 0x2) == 0) - return 0; - msleep(20); - } - - return -EINVAL; - -} - -static int mt9m114_set_suspend(struct v4l2_subdev *sd) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - return mt9m114_write_reg_array(client, - mt9m114_standby_reg, POST_POLLING); -} - -static int mt9m114_init_common(struct v4l2_subdev *sd) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - - return mt9m114_write_reg_array(client, mt9m114_common, PRE_POLLING); -} - -static int power_ctrl(struct v4l2_subdev *sd, bool flag) -{ - int ret; - struct mt9m114_device *dev = to_mt9m114_sensor(sd); - - if (!dev || !dev->platform_data) - return -ENODEV; - - if (flag) { - ret = dev->platform_data->v2p8_ctrl(sd, 1); - if (ret == 0) { - ret = dev->platform_data->v1p8_ctrl(sd, 1); - if (ret) - ret = dev->platform_data->v2p8_ctrl(sd, 0); - } - } else { - ret = dev->platform_data->v2p8_ctrl(sd, 0); - ret = dev->platform_data->v1p8_ctrl(sd, 0); - } - return ret; -} - -static int gpio_ctrl(struct v4l2_subdev *sd, bool flag) -{ - int ret; - struct mt9m114_device *dev = to_mt9m114_sensor(sd); - - if (!dev || !dev->platform_data) - return -ENODEV; - - /* Note: current modules wire only one GPIO signal (RESET#), - * but the schematic wires up two to the connector. BIOS - * versions have been unfortunately inconsistent with which - * ACPI index RESET# is on, so hit both */ - - if (flag) { - ret = dev->platform_data->gpio0_ctrl(sd, 0); - ret = dev->platform_data->gpio1_ctrl(sd, 0); - msleep(60); - ret |= dev->platform_data->gpio0_ctrl(sd, 1); - ret |= dev->platform_data->gpio1_ctrl(sd, 1); - } else { - ret = dev->platform_data->gpio0_ctrl(sd, 0); - ret = dev->platform_data->gpio1_ctrl(sd, 0); - } - return ret; -} - -static int power_up(struct v4l2_subdev *sd) -{ - struct mt9m114_device *dev = to_mt9m114_sensor(sd); - struct i2c_client *client = v4l2_get_subdevdata(sd); - int ret; - - if (NULL == dev->platform_data) { - dev_err(&client->dev, "no camera_sensor_platform_data"); - return -ENODEV; - } - - /* power control */ - ret = power_ctrl(sd, 1); - if (ret) - goto fail_power; - - /* flis clock control */ - ret = dev->platform_data->flisclk_ctrl(sd, 1); - if (ret) - goto fail_clk; - - /* gpio ctrl */ - ret = gpio_ctrl(sd, 1); - if (ret) - dev_err(&client->dev, "gpio failed 1\n"); - /* - * according to DS, 44ms is needed between power up and first i2c - * commend - */ - msleep(50); - - return 0; - -fail_clk: - dev->platform_data->flisclk_ctrl(sd, 0); -fail_power: - power_ctrl(sd, 0); - dev_err(&client->dev, "sensor power-up failed\n"); - - return ret; -} - -static int power_down(struct v4l2_subdev *sd) -{ - struct mt9m114_device *dev = to_mt9m114_sensor(sd); - struct i2c_client *client = v4l2_get_subdevdata(sd); - int ret; - - if (NULL == dev->platform_data) { - dev_err(&client->dev, "no camera_sensor_platform_data"); - return -ENODEV; - } - - ret = dev->platform_data->flisclk_ctrl(sd, 0); - if (ret) - dev_err(&client->dev, "flisclk failed\n"); - - /* gpio ctrl */ - ret = gpio_ctrl(sd, 0); - if (ret) - dev_err(&client->dev, "gpio failed 1\n"); - - /* power control */ - ret = power_ctrl(sd, 0); - if (ret) - dev_err(&client->dev, "vprog failed.\n"); - - /*according to DS, 20ms is needed after power down*/ - msleep(20); - - return ret; -} - -static int mt9m114_s_power(struct v4l2_subdev *sd, int power) -{ - if (power == 0) - return power_down(sd); - else { - if (power_up(sd)) - return -EINVAL; - - return mt9m114_init_common(sd); - } -} - -/* - * distance - calculate the distance - * @res: resolution - * @w: width - * @h: height - * - * Get the gap between resolution and w/h. - * res->width/height smaller than w/h wouldn't be considered. - * Returns the value of gap or -1 if fail. - */ -#define LARGEST_ALLOWED_RATIO_MISMATCH 600 -static int distance(struct mt9m114_res_struct const *res, u32 w, u32 h) -{ - unsigned int w_ratio; - unsigned int h_ratio; - int match; - - if (w == 0) - return -1; - w_ratio = (res->width << 13) / w; - if (h == 0) - return -1; - h_ratio = (res->height << 13) / h; - if (h_ratio == 0) - return -1; - match = abs(((w_ratio << 13) / h_ratio) - 8192); - - if ((w_ratio < 8192) || (h_ratio < 8192) || - (match > LARGEST_ALLOWED_RATIO_MISMATCH)) - return -1; - - return w_ratio + h_ratio; -} - -/* Return the nearest higher resolution index */ -static int nearest_resolution_index(int w, int h) -{ - int i; - int idx = -1; - int dist; - int min_dist = INT_MAX; - const struct mt9m114_res_struct *tmp_res = NULL; - - for (i = 0; i < ARRAY_SIZE(mt9m114_res); i++) { - tmp_res = &mt9m114_res[i]; - dist = distance(tmp_res, w, h); - if (dist == -1) - continue; - if (dist < min_dist) { - min_dist = dist; - idx = i; - } - } - - return idx; -} - -static int mt9m114_try_res(u32 *w, u32 *h) -{ - int idx = 0; - - if ((*w > MT9M114_RES_960P_SIZE_H) - || (*h > MT9M114_RES_960P_SIZE_V)) { - *w = MT9M114_RES_960P_SIZE_H; - *h = MT9M114_RES_960P_SIZE_V; - } else { - idx = nearest_resolution_index(*w, *h); - - /* - * nearest_resolution_index() doesn't return smaller - * resolutions. If it fails, it means the requested - * resolution is higher than wecan support. Fallback - * to highest possible resolution in this case. - */ - if (idx == -1) - idx = ARRAY_SIZE(mt9m114_res) - 1; - - *w = mt9m114_res[idx].width; - *h = mt9m114_res[idx].height; - } - - return 0; -} - -static struct mt9m114_res_struct *mt9m114_to_res(u32 w, u32 h) -{ - int index; - - for (index = 0; index < N_RES; index++) { - if ((mt9m114_res[index].width == w) && - (mt9m114_res[index].height == h)) - break; - } - - /* No mode found */ - if (index >= N_RES) - return NULL; - - return &mt9m114_res[index]; -} - -static int mt9m114_res2size(struct v4l2_subdev *sd, int *h_size, int *v_size) -{ - struct mt9m114_device *dev = to_mt9m114_sensor(sd); - unsigned short hsize; - unsigned short vsize; - - switch (dev->res) { - case MT9M114_RES_736P: - hsize = MT9M114_RES_736P_SIZE_H; - vsize = MT9M114_RES_736P_SIZE_V; - break; - case MT9M114_RES_864P: - hsize = MT9M114_RES_864P_SIZE_H; - vsize = MT9M114_RES_864P_SIZE_V; - break; - case MT9M114_RES_960P: - hsize = MT9M114_RES_960P_SIZE_H; - vsize = MT9M114_RES_960P_SIZE_V; - break; - default: - v4l2_err(sd, "%s: Resolution 0x%08x unknown\n", __func__, - dev->res); - return -EINVAL; - } - - if (h_size != NULL) - *h_size = hsize; - if (v_size != NULL) - *v_size = vsize; - - return 0; -} - -static int mt9m114_get_intg_factor(struct i2c_client *client, - struct camera_mipi_info *info, - const struct mt9m114_res_struct *res) -{ - struct atomisp_sensor_mode_data *buf = &info->data; - u32 reg_val; - int ret; - - if (info == NULL) - return -EINVAL; - - ret = mt9m114_read_reg(client, MISENSOR_32BIT, - REG_PIXEL_CLK, ®_val); - if (ret) - return ret; - buf->vt_pix_clk_freq_mhz = reg_val; - - /* get integration time */ - buf->coarse_integration_time_min = MT9M114_COARSE_INTG_TIME_MIN; - buf->coarse_integration_time_max_margin = - MT9M114_COARSE_INTG_TIME_MAX_MARGIN; - - buf->fine_integration_time_min = MT9M114_FINE_INTG_TIME_MIN; - buf->fine_integration_time_max_margin = - MT9M114_FINE_INTG_TIME_MAX_MARGIN; - - buf->fine_integration_time_def = MT9M114_FINE_INTG_TIME_MIN; - - buf->frame_length_lines = res->lines_per_frame; - buf->line_length_pck = res->pixels_per_line; - buf->read_mode = res->bin_mode; - - /* get the cropping and output resolution to ISP for this mode. */ - ret = mt9m114_read_reg(client, MISENSOR_16BIT, - REG_H_START, ®_val); - if (ret) - return ret; - buf->crop_horizontal_start = reg_val; - - ret = mt9m114_read_reg(client, MISENSOR_16BIT, - REG_V_START, ®_val); - if (ret) - return ret; - buf->crop_vertical_start = reg_val; - - ret = mt9m114_read_reg(client, MISENSOR_16BIT, - REG_H_END, ®_val); - if (ret) - return ret; - buf->crop_horizontal_end = reg_val; - - ret = mt9m114_read_reg(client, MISENSOR_16BIT, - REG_V_END, ®_val); - if (ret) - return ret; - buf->crop_vertical_end = reg_val; - - ret = mt9m114_read_reg(client, MISENSOR_16BIT, - REG_WIDTH, ®_val); - if (ret) - return ret; - buf->output_width = reg_val; - - ret = mt9m114_read_reg(client, MISENSOR_16BIT, - REG_HEIGHT, ®_val); - if (ret) - return ret; - buf->output_height = reg_val; - - ret = mt9m114_read_reg(client, MISENSOR_16BIT, - REG_TIMING_HTS, ®_val); - if (ret) - return ret; - buf->line_length_pck = reg_val; - - ret = mt9m114_read_reg(client, MISENSOR_16BIT, - REG_TIMING_VTS, ®_val); - if (ret) - return ret; - buf->frame_length_lines = reg_val; - - buf->binning_factor_x = res->bin_factor_x ? - res->bin_factor_x : 1; - buf->binning_factor_y = res->bin_factor_y ? - res->bin_factor_y : 1; - return 0; -} - -static int mt9m114_get_fmt(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_format *format) -{ - struct v4l2_mbus_framefmt *fmt = &format->format; - int width, height; - int ret; - if (format->pad) - return -EINVAL; - fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10; - - ret = mt9m114_res2size(sd, &width, &height); - if (ret) - return ret; - fmt->width = width; - fmt->height = height; - - return 0; -} - -static int mt9m114_set_fmt(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_format *format) -{ - struct v4l2_mbus_framefmt *fmt = &format->format; - struct i2c_client *c = v4l2_get_subdevdata(sd); - struct mt9m114_device *dev = to_mt9m114_sensor(sd); - struct mt9m114_res_struct *res_index; - u32 width = fmt->width; - u32 height = fmt->height; - struct camera_mipi_info *mt9m114_info = NULL; - - int ret; - if (format->pad) - return -EINVAL; - dev->streamon = 0; - dev->first_exp = MT9M114_DEFAULT_FIRST_EXP; - - mt9m114_info = v4l2_get_subdev_hostdata(sd); - if (mt9m114_info == NULL) - return -EINVAL; - - mt9m114_try_res(&width, &height); - if (format->which == V4L2_SUBDEV_FORMAT_TRY) { - cfg->try_fmt = *fmt; - return 0; - } - res_index = mt9m114_to_res(width, height); - - /* Sanity check */ - if (unlikely(!res_index)) { - WARN_ON(1); - return -EINVAL; - } - - switch (res_index->res) { - case MT9M114_RES_736P: - ret = mt9m114_write_reg_array(c, mt9m114_736P_init, NO_POLLING); - ret += misensor_rmw_reg(c, MISENSOR_16BIT, MISENSOR_READ_MODE, - MISENSOR_R_MODE_MASK, MISENSOR_NORMAL_SET); - break; - case MT9M114_RES_864P: - ret = mt9m114_write_reg_array(c, mt9m114_864P_init, NO_POLLING); - ret += misensor_rmw_reg(c, MISENSOR_16BIT, MISENSOR_READ_MODE, - MISENSOR_R_MODE_MASK, MISENSOR_NORMAL_SET); - break; - case MT9M114_RES_960P: - ret = mt9m114_write_reg_array(c, mt9m114_976P_init, NO_POLLING); - /* set sensor read_mode to Normal */ - ret += misensor_rmw_reg(c, MISENSOR_16BIT, MISENSOR_READ_MODE, - MISENSOR_R_MODE_MASK, MISENSOR_NORMAL_SET); - break; - default: - v4l2_err(sd, "set resolution: %d failed!\n", res_index->res); - return -EINVAL; - } - - if (ret) - return -EINVAL; - - ret = mt9m114_write_reg_array(c, mt9m114_chgstat_reg, POST_POLLING); - if (ret < 0) - return ret; - - if (mt9m114_set_suspend(sd)) - return -EINVAL; - - if (dev->res != res_index->res) { - int index; - - /* Switch to different size */ - if (width <= 640) { - dev->nctx = 0x00; /* Set for context A */ - } else { - /* - * Context B is used for resolutions larger than 640x480 - * Using YUV for Context B. - */ - dev->nctx = 0x01; /* set for context B */ - } - - /* - * Marked current sensor res as being "used" - * - * REVISIT: We don't need to use an "used" field on each mode - * list entry to know which mode is selected. If this - * information is really necessary, how about to use a single - * variable on sensor dev struct? - */ - for (index = 0; index < N_RES; index++) { - if ((width == mt9m114_res[index].width) && - (height == mt9m114_res[index].height)) { - mt9m114_res[index].used = true; - continue; - } - mt9m114_res[index].used = false; - } - } - ret = mt9m114_get_intg_factor(c, mt9m114_info, - &mt9m114_res[res_index->res]); - if (ret) { - dev_err(&c->dev, "failed to get integration_factor\n"); - return -EINVAL; - } - /* - * mt9m114 - we don't poll for context switch - * because it does not happen with streaming disabled. - */ - dev->res = res_index->res; - - fmt->width = width; - fmt->height = height; - fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10; - return 0; -} - -/* TODO: Update to SOC functions, remove exposure and gain */ -static int mt9m114_g_focal(struct v4l2_subdev *sd, s32 *val) -{ - *val = (MT9M114_FOCAL_LENGTH_NUM << 16) | MT9M114_FOCAL_LENGTH_DEM; - return 0; -} - -static int mt9m114_g_fnumber(struct v4l2_subdev *sd, s32 *val) -{ - /*const f number for mt9m114*/ - *val = (MT9M114_F_NUMBER_DEFAULT_NUM << 16) | MT9M114_F_NUMBER_DEM; - return 0; -} - -static int mt9m114_g_fnumber_range(struct v4l2_subdev *sd, s32 *val) -{ - *val = (MT9M114_F_NUMBER_DEFAULT_NUM << 24) | - (MT9M114_F_NUMBER_DEM << 16) | - (MT9M114_F_NUMBER_DEFAULT_NUM << 8) | MT9M114_F_NUMBER_DEM; - return 0; -} - -/* Horizontal flip the image. */ -static int mt9m114_g_hflip(struct v4l2_subdev *sd, s32 *val) -{ - struct i2c_client *c = v4l2_get_subdevdata(sd); - int ret; - u32 data; - ret = mt9m114_read_reg(c, MISENSOR_16BIT, - (u32)MISENSOR_READ_MODE, &data); - if (ret) - return ret; - *val = !!(data & MISENSOR_HFLIP_MASK); - - return 0; -} - -static int mt9m114_g_vflip(struct v4l2_subdev *sd, s32 *val) -{ - struct i2c_client *c = v4l2_get_subdevdata(sd); - int ret; - u32 data; - - ret = mt9m114_read_reg(c, MISENSOR_16BIT, - (u32)MISENSOR_READ_MODE, &data); - if (ret) - return ret; - *val = !!(data & MISENSOR_VFLIP_MASK); - - return 0; -} - -static long mt9m114_s_exposure(struct v4l2_subdev *sd, - struct atomisp_exposure *exposure) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct mt9m114_device *dev = to_mt9m114_sensor(sd); - int ret = 0; - unsigned int coarse_integration = 0; - unsigned int FLines = 0; - unsigned int FrameLengthLines = 0; /* ExposureTime.FrameLengthLines; */ - unsigned int AnalogGain, DigitalGain; - u32 AnalogGainToWrite = 0; - - dev_dbg(&client->dev, "%s(0x%X 0x%X 0x%X)\n", __func__, - exposure->integration_time[0], exposure->gain[0], - exposure->gain[1]); - - coarse_integration = exposure->integration_time[0]; - /* fine_integration = ExposureTime.FineIntegrationTime; */ - /* FrameLengthLines = ExposureTime.FrameLengthLines; */ - FLines = mt9m114_res[dev->res].lines_per_frame; - AnalogGain = exposure->gain[0]; - DigitalGain = exposure->gain[1]; - if (!dev->streamon) { - /*Save the first exposure values while stream is off*/ - dev->first_exp = coarse_integration; - dev->first_gain = AnalogGain; - dev->first_diggain = DigitalGain; - } - /* DigitalGain = 0x400 * (((u16) DigitalGain) >> 8) + - ((unsigned int)(0x400 * (((u16) DigitalGain) & 0xFF)) >>8); */ - - /* set frame length */ - if (FLines < coarse_integration + 6) - FLines = coarse_integration + 6; - if (FLines < FrameLengthLines) - FLines = FrameLengthLines; - ret = mt9m114_write_reg(client, MISENSOR_16BIT, 0x300A, FLines); - if (ret) { - v4l2_err(client, "%s: fail to set FLines\n", __func__); - return -EINVAL; - } - - /* set coarse integration */ - /* 3A provide real exposure time. - should not translate to any value here. */ - ret = mt9m114_write_reg(client, MISENSOR_16BIT, - REG_EXPO_COARSE, (u16)(coarse_integration)); - if (ret) { - v4l2_err(client, "%s: fail to set exposure time\n", __func__); - return -EINVAL; - } - - /* - // set analog/digital gain - switch(AnalogGain) - { - case 0: - AnalogGainToWrite = 0x0; - break; - case 1: - AnalogGainToWrite = 0x20; - break; - case 2: - AnalogGainToWrite = 0x60; - break; - case 4: - AnalogGainToWrite = 0xA0; - break; - case 8: - AnalogGainToWrite = 0xE0; - break; - default: - AnalogGainToWrite = 0x20; - break; - } - */ - if (DigitalGain >= 16 || DigitalGain <= 1) - DigitalGain = 1; - /* AnalogGainToWrite = - (u16)((DigitalGain << 12) | AnalogGainToWrite); */ - AnalogGainToWrite = (u16)((DigitalGain << 12) | (u16)AnalogGain); - ret = mt9m114_write_reg(client, MISENSOR_16BIT, - REG_GAIN, AnalogGainToWrite); - if (ret) { - v4l2_err(client, "%s: fail to set AnalogGainToWrite\n", - __func__); - return -EINVAL; - } - - return ret; -} - -static long mt9m114_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) -{ - - switch (cmd) { - case ATOMISP_IOC_S_EXPOSURE: - return mt9m114_s_exposure(sd, arg); - default: - return -EINVAL; - } - - return 0; -} - -/* This returns the exposure time being used. This should only be used - for filling in EXIF data, not for actual image processing. */ -static int mt9m114_g_exposure(struct v4l2_subdev *sd, s32 *value) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - u32 coarse; - int ret; - - /* the fine integration time is currently not calculated */ - ret = mt9m114_read_reg(client, MISENSOR_16BIT, - REG_EXPO_COARSE, &coarse); - if (ret) - return ret; - - *value = coarse; - return 0; -} -#ifndef CSS15 -/* - * This function will return the sensor supported max exposure zone number. - * the sensor which supports max exposure zone number is 1. - */ -static int mt9m114_g_exposure_zone_num(struct v4l2_subdev *sd, s32 *val) -{ - *val = 1; - - return 0; -} - -/* - * set exposure metering, average/center_weighted/spot/matrix. - */ -static int mt9m114_s_exposure_metering(struct v4l2_subdev *sd, s32 val) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - int ret; - - switch (val) { - case V4L2_EXPOSURE_METERING_SPOT: - ret = mt9m114_write_reg_array(client, mt9m114_exp_average, - NO_POLLING); - if (ret) { - dev_err(&client->dev, "write exp_average reg err.\n"); - return ret; - } - break; - case V4L2_EXPOSURE_METERING_CENTER_WEIGHTED: - default: - ret = mt9m114_write_reg_array(client, mt9m114_exp_center, - NO_POLLING); - if (ret) { - dev_err(&client->dev, "write exp_default reg err"); - return ret; - } - } - - return 0; -} - -/* - * This function is for touch exposure feature. - */ -static int mt9m114_s_exposure_selection(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_selection *sel) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct misensor_reg exp_reg; - int width, height; - int grid_width, grid_height; - int grid_left, grid_top, grid_right, grid_bottom; - int win_left, win_top, win_right, win_bottom; - int i, j; - int ret; - - if (sel->which != V4L2_SUBDEV_FORMAT_TRY && - sel->which != V4L2_SUBDEV_FORMAT_ACTIVE) - return -EINVAL; - - grid_left = sel->r.left; - grid_top = sel->r.top; - grid_right = sel->r.left + sel->r.width - 1; - grid_bottom = sel->r.top + sel->r.height - 1; - - ret = mt9m114_res2size(sd, &width, &height); - if (ret) - return ret; - - grid_width = width / 5; - grid_height = height / 5; - - if (grid_width && grid_height) { - win_left = grid_left / grid_width; - win_top = grid_top / grid_height; - win_right = grid_right / grid_width; - win_bottom = grid_bottom / grid_height; - } else { - dev_err(&client->dev, "Incorrect exp grid.\n"); - return -EINVAL; - } - - win_left = clamp_t(int, win_left, 0, 4); - win_top = clamp_t(int, win_top, 0, 4); - win_right = clamp_t(int, win_right, 0, 4); - win_bottom = clamp_t(int, win_bottom, 0, 4); - - ret = mt9m114_write_reg_array(client, mt9m114_exp_average, NO_POLLING); - if (ret) { - dev_err(&client->dev, "write exp_average reg err.\n"); - return ret; - } - - for (i = win_top; i <= win_bottom; i++) { - for (j = win_left; j <= win_right; j++) { - exp_reg = mt9m114_exp_win[i][j]; - - ret = mt9m114_write_reg(client, exp_reg.length, - exp_reg.reg, exp_reg.val); - if (ret) { - dev_err(&client->dev, "write exp_reg err.\n"); - return ret; - } - } - } - - return 0; -} -#endif - -static int mt9m114_g_bin_factor_x(struct v4l2_subdev *sd, s32 *val) -{ - struct mt9m114_device *dev = to_mt9m114_sensor(sd); - - *val = mt9m114_res[dev->res].bin_factor_x; - - return 0; -} - -static int mt9m114_g_bin_factor_y(struct v4l2_subdev *sd, s32 *val) -{ - struct mt9m114_device *dev = to_mt9m114_sensor(sd); - - *val = mt9m114_res[dev->res].bin_factor_y; - - return 0; -} - -static int mt9m114_s_ev(struct v4l2_subdev *sd, s32 val) -{ - struct i2c_client *c = v4l2_get_subdevdata(sd); - s32 luma = 0x37; - int err; - - /* EV value only support -2 to 2 - * 0: 0x37, 1:0x47, 2:0x57, -1:0x27, -2:0x17 - */ - if (val < -2 || val > 2) - return -EINVAL; - luma += 0x10 * val; - dev_dbg(&c->dev, "%s val:%d luma:0x%x\n", __func__, val, luma); - err = mt9m114_write_reg(c, MISENSOR_16BIT, 0x098E, 0xC87A); - if (err) { - dev_err(&c->dev, "%s logic addr access error\n", __func__); - return err; - } - err = mt9m114_write_reg(c, MISENSOR_8BIT, 0xC87A, (u32)luma); - if (err) { - dev_err(&c->dev, "%s write target_average_luma failed\n", - __func__); - return err; - } - udelay(10); - - return 0; -} - -static int mt9m114_g_ev(struct v4l2_subdev *sd, s32 *val) -{ - struct i2c_client *c = v4l2_get_subdevdata(sd); - int err; - u32 luma; - - err = mt9m114_write_reg(c, MISENSOR_16BIT, 0x098E, 0xC87A); - if (err) { - dev_err(&c->dev, "%s logic addr access error\n", __func__); - return err; - } - err = mt9m114_read_reg(c, MISENSOR_8BIT, 0xC87A, &luma); - if (err) { - dev_err(&c->dev, "%s read target_average_luma failed\n", - __func__); - return err; - } - luma -= 0x17; - luma /= 0x10; - *val = (s32)luma - 2; - dev_dbg(&c->dev, "%s val:%d\n", __func__, *val); - - return 0; -} - -/* Fake interface - * mt9m114 now can not support 3a_lock -*/ -static int mt9m114_s_3a_lock(struct v4l2_subdev *sd, s32 val) -{ - aaalock = val; - return 0; -} - -static int mt9m114_g_3a_lock(struct v4l2_subdev *sd, s32 *val) -{ - if (aaalock) - return V4L2_LOCK_EXPOSURE | V4L2_LOCK_WHITE_BALANCE - | V4L2_LOCK_FOCUS; - return 0; -} - -static int mt9m114_s_ctrl(struct v4l2_ctrl *ctrl) -{ - struct mt9m114_device *dev = - container_of(ctrl->handler, struct mt9m114_device, ctrl_handler); - struct i2c_client *client = v4l2_get_subdevdata(&dev->sd); - int ret = 0; - - switch (ctrl->id) { - case V4L2_CID_VFLIP: - dev_dbg(&client->dev, "%s: CID_VFLIP:%d.\n", - __func__, ctrl->val); - ret = mt9m114_t_vflip(&dev->sd, ctrl->val); - break; - case V4L2_CID_HFLIP: - dev_dbg(&client->dev, "%s: CID_HFLIP:%d.\n", - __func__, ctrl->val); - ret = mt9m114_t_hflip(&dev->sd, ctrl->val); - break; -#ifndef CSS15 - case V4L2_CID_EXPOSURE_METERING: - ret = mt9m114_s_exposure_metering(&dev->sd, ctrl->val); - break; -#endif - case V4L2_CID_EXPOSURE: - ret = mt9m114_s_ev(&dev->sd, ctrl->val); - break; - case V4L2_CID_3A_LOCK: - ret = mt9m114_s_3a_lock(&dev->sd, ctrl->val); - break; - default: - ret = -EINVAL; - } - return ret; -} - -static int mt9m114_g_volatile_ctrl(struct v4l2_ctrl *ctrl) -{ - struct mt9m114_device *dev = - container_of(ctrl->handler, struct mt9m114_device, ctrl_handler); - int ret = 0; - - switch (ctrl->id) { - case V4L2_CID_VFLIP: - ret = mt9m114_g_vflip(&dev->sd, &ctrl->val); - break; - case V4L2_CID_HFLIP: - ret = mt9m114_g_hflip(&dev->sd, &ctrl->val); - break; - case V4L2_CID_FOCAL_ABSOLUTE: - ret = mt9m114_g_focal(&dev->sd, &ctrl->val); - break; - case V4L2_CID_FNUMBER_ABSOLUTE: - ret = mt9m114_g_fnumber(&dev->sd, &ctrl->val); - break; - case V4L2_CID_FNUMBER_RANGE: - ret = mt9m114_g_fnumber_range(&dev->sd, &ctrl->val); - break; - case V4L2_CID_EXPOSURE_ABSOLUTE: - ret = mt9m114_g_exposure(&dev->sd, &ctrl->val); - break; -#ifndef CSS15 - case V4L2_CID_EXPOSURE_ZONE_NUM: - ret = mt9m114_g_exposure_zone_num(&dev->sd, &ctrl->val); - break; -#endif - case V4L2_CID_BIN_FACTOR_HORZ: - ret = mt9m114_g_bin_factor_x(&dev->sd, &ctrl->val); - break; - case V4L2_CID_BIN_FACTOR_VERT: - ret = mt9m114_g_bin_factor_y(&dev->sd, &ctrl->val); - break; - case V4L2_CID_EXPOSURE: - ret = mt9m114_g_ev(&dev->sd, &ctrl->val); - break; - case V4L2_CID_3A_LOCK: - ret = mt9m114_g_3a_lock(&dev->sd, &ctrl->val); - break; - default: - ret = -EINVAL; - } - - return ret; -} - -static const struct v4l2_ctrl_ops ctrl_ops = { - .s_ctrl = mt9m114_s_ctrl, - .g_volatile_ctrl = mt9m114_g_volatile_ctrl -}; - -static struct v4l2_ctrl_config mt9m114_controls[] = { - { - .ops = &ctrl_ops, - .id = V4L2_CID_VFLIP, - .name = "Image v-Flip", - .type = V4L2_CTRL_TYPE_INTEGER, - .min = 0, - .max = 1, - .step = 1, - .def = 0, - }, - { - .ops = &ctrl_ops, - .id = V4L2_CID_HFLIP, - .name = "Image h-Flip", - .type = V4L2_CTRL_TYPE_INTEGER, - .min = 0, - .max = 1, - .step = 1, - .def = 0, - }, - { - .ops = &ctrl_ops, - .id = V4L2_CID_FOCAL_ABSOLUTE, - .name = "focal length", - .type = V4L2_CTRL_TYPE_INTEGER, - .min = MT9M114_FOCAL_LENGTH_DEFAULT, - .max = MT9M114_FOCAL_LENGTH_DEFAULT, - .step = 1, - .def = MT9M114_FOCAL_LENGTH_DEFAULT, - .flags = 0, - }, - { - .ops = &ctrl_ops, - .id = V4L2_CID_FNUMBER_ABSOLUTE, - .name = "f-number", - .type = V4L2_CTRL_TYPE_INTEGER, - .min = MT9M114_F_NUMBER_DEFAULT, - .max = MT9M114_F_NUMBER_DEFAULT, - .step = 1, - .def = MT9M114_F_NUMBER_DEFAULT, - .flags = 0, - }, - { - .ops = &ctrl_ops, - .id = V4L2_CID_FNUMBER_RANGE, - .name = "f-number range", - .type = V4L2_CTRL_TYPE_INTEGER, - .min = MT9M114_F_NUMBER_RANGE, - .max = MT9M114_F_NUMBER_RANGE, - .step = 1, - .def = MT9M114_F_NUMBER_RANGE, - .flags = 0, - }, - { - .ops = &ctrl_ops, - .id = V4L2_CID_EXPOSURE_ABSOLUTE, - .name = "exposure", - .type = V4L2_CTRL_TYPE_INTEGER, - .min = 0, - .max = 0xffff, - .step = 1, - .def = 0, - .flags = 0, - }, -#ifndef CSS15 - { - .ops = &ctrl_ops, - .id = V4L2_CID_EXPOSURE_ZONE_NUM, - .name = "one-time exposure zone number", - .type = V4L2_CTRL_TYPE_INTEGER, - .min = 0, - .max = 0xffff, - .step = 1, - .def = 0, - .flags = 0, - }, - { - .ops = &ctrl_ops, - .id = V4L2_CID_EXPOSURE_METERING, - .name = "metering", - .type = V4L2_CTRL_TYPE_MENU, - .min = 0, - .max = 3, - .step = 0, - .def = 1, - .flags = 0, - }, -#endif - { - .ops = &ctrl_ops, - .id = V4L2_CID_BIN_FACTOR_HORZ, - .name = "horizontal binning factor", - .type = V4L2_CTRL_TYPE_INTEGER, - .min = 0, - .max = MT9M114_BIN_FACTOR_MAX, - .step = 1, - .def = 0, - .flags = 0, - }, - { - .ops = &ctrl_ops, - .id = V4L2_CID_BIN_FACTOR_VERT, - .name = "vertical binning factor", - .type = V4L2_CTRL_TYPE_INTEGER, - .min = 0, - .max = MT9M114_BIN_FACTOR_MAX, - .step = 1, - .def = 0, - .flags = 0, - }, - { - .ops = &ctrl_ops, - .id = V4L2_CID_EXPOSURE, - .name = "exposure biasx", - .type = V4L2_CTRL_TYPE_INTEGER, - .min = -2, - .max = 2, - .step = 1, - .def = 0, - .flags = 0, - }, - { - .ops = &ctrl_ops, - .id = V4L2_CID_3A_LOCK, - .name = "3a lock", - .type = V4L2_CTRL_TYPE_BITMASK, - .min = 0, - .max = V4L2_LOCK_EXPOSURE | V4L2_LOCK_WHITE_BALANCE | V4L2_LOCK_FOCUS, - .step = 1, - .def = 0, - .flags = 0, - }, -}; - -static int mt9m114_detect(struct mt9m114_device *dev, struct i2c_client *client) -{ - struct i2c_adapter *adapter = client->adapter; - u32 retvalue; - - if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) { - dev_err(&client->dev, "%s: i2c error", __func__); - return -ENODEV; - } - mt9m114_read_reg(client, MISENSOR_16BIT, (u32)MT9M114_PID, &retvalue); - dev->real_model_id = retvalue; - - if (retvalue != MT9M114_MOD_ID) { - dev_err(&client->dev, "%s: failed: client->addr = %x\n", - __func__, client->addr); - return -ENODEV; - } - - return 0; -} - -static int -mt9m114_s_config(struct v4l2_subdev *sd, int irq, void *platform_data) -{ - struct mt9m114_device *dev = to_mt9m114_sensor(sd); - struct i2c_client *client = v4l2_get_subdevdata(sd); - int ret; - - if (NULL == platform_data) - return -ENODEV; - - dev->platform_data = - (struct camera_sensor_platform_data *)platform_data; - - ret = power_up(sd); - if (ret) { - v4l2_err(client, "mt9m114 power-up err"); - return ret; - } - - /* config & detect sensor */ - ret = mt9m114_detect(dev, client); - if (ret) { - v4l2_err(client, "mt9m114_detect err s_config.\n"); - goto fail_detect; - } - - ret = dev->platform_data->csi_cfg(sd, 1); - if (ret) - goto fail_csi_cfg; - - ret = mt9m114_set_suspend(sd); - if (ret) { - v4l2_err(client, "mt9m114 suspend err"); - return ret; - } - - ret = power_down(sd); - if (ret) { - v4l2_err(client, "mt9m114 power down err"); - return ret; - } - - return ret; - -fail_csi_cfg: - dev->platform_data->csi_cfg(sd, 0); -fail_detect: - power_down(sd); - dev_err(&client->dev, "sensor power-gating failed\n"); - return ret; -} - -/* Horizontal flip the image. */ -static int mt9m114_t_hflip(struct v4l2_subdev *sd, int value) -{ - struct i2c_client *c = v4l2_get_subdevdata(sd); - struct mt9m114_device *dev = to_mt9m114_sensor(sd); - int err; - /* set for direct mode */ - err = mt9m114_write_reg(c, MISENSOR_16BIT, 0x098E, 0xC850); - if (value) { - /* enable H flip ctx A */ - err += misensor_rmw_reg(c, MISENSOR_8BIT, 0xC850, 0x01, 0x01); - err += misensor_rmw_reg(c, MISENSOR_8BIT, 0xC851, 0x01, 0x01); - /* ctx B */ - err += misensor_rmw_reg(c, MISENSOR_8BIT, 0xC888, 0x01, 0x01); - err += misensor_rmw_reg(c, MISENSOR_8BIT, 0xC889, 0x01, 0x01); - - err += misensor_rmw_reg(c, MISENSOR_16BIT, MISENSOR_READ_MODE, - MISENSOR_HFLIP_MASK, MISENSOR_FLIP_EN); - - dev->bpat = MT9M114_BPAT_GRGRBGBG; - } else { - /* disable H flip ctx A */ - err += misensor_rmw_reg(c, MISENSOR_8BIT, 0xC850, 0x01, 0x00); - err += misensor_rmw_reg(c, MISENSOR_8BIT, 0xC851, 0x01, 0x00); - /* ctx B */ - err += misensor_rmw_reg(c, MISENSOR_8BIT, 0xC888, 0x01, 0x00); - err += misensor_rmw_reg(c, MISENSOR_8BIT, 0xC889, 0x01, 0x00); - - err += misensor_rmw_reg(c, MISENSOR_16BIT, MISENSOR_READ_MODE, - MISENSOR_HFLIP_MASK, MISENSOR_FLIP_DIS); - - dev->bpat = MT9M114_BPAT_BGBGGRGR; - } - - err += mt9m114_write_reg(c, MISENSOR_8BIT, 0x8404, 0x06); - udelay(10); - - return !!err; -} - -/* Vertically flip the image */ -static int mt9m114_t_vflip(struct v4l2_subdev *sd, int value) -{ - struct i2c_client *c = v4l2_get_subdevdata(sd); - int err; - /* set for direct mode */ - err = mt9m114_write_reg(c, MISENSOR_16BIT, 0x098E, 0xC850); - if (value >= 1) { - /* enable H flip - ctx A */ - err += misensor_rmw_reg(c, MISENSOR_8BIT, 0xC850, 0x02, 0x01); - err += misensor_rmw_reg(c, MISENSOR_8BIT, 0xC851, 0x02, 0x01); - /* ctx B */ - err += misensor_rmw_reg(c, MISENSOR_8BIT, 0xC888, 0x02, 0x01); - err += misensor_rmw_reg(c, MISENSOR_8BIT, 0xC889, 0x02, 0x01); - - err += misensor_rmw_reg(c, MISENSOR_16BIT, MISENSOR_READ_MODE, - MISENSOR_VFLIP_MASK, MISENSOR_FLIP_EN); - } else { - /* disable H flip - ctx A */ - err += misensor_rmw_reg(c, MISENSOR_8BIT, 0xC850, 0x02, 0x00); - err += misensor_rmw_reg(c, MISENSOR_8BIT, 0xC851, 0x02, 0x00); - /* ctx B */ - err += misensor_rmw_reg(c, MISENSOR_8BIT, 0xC888, 0x02, 0x00); - err += misensor_rmw_reg(c, MISENSOR_8BIT, 0xC889, 0x02, 0x00); - - err += misensor_rmw_reg(c, MISENSOR_16BIT, MISENSOR_READ_MODE, - MISENSOR_VFLIP_MASK, MISENSOR_FLIP_DIS); - } - - err += mt9m114_write_reg(c, MISENSOR_8BIT, 0x8404, 0x06); - udelay(10); - - return !!err; -} - -static int mt9m114_g_frame_interval(struct v4l2_subdev *sd, - struct v4l2_subdev_frame_interval *interval) -{ - struct mt9m114_device *dev = to_mt9m114_sensor(sd); - - interval->interval.numerator = 1; - interval->interval.denominator = mt9m114_res[dev->res].fps; - - return 0; -} - -static int mt9m114_s_stream(struct v4l2_subdev *sd, int enable) -{ - int ret; - struct i2c_client *c = v4l2_get_subdevdata(sd); - struct mt9m114_device *dev = to_mt9m114_sensor(sd); - struct atomisp_exposure exposure; - - if (enable) { - ret = mt9m114_write_reg_array(c, mt9m114_chgstat_reg, - POST_POLLING); - if (ret < 0) - return ret; - - if (dev->first_exp > MT9M114_MAX_FIRST_EXP) { - exposure.integration_time[0] = dev->first_exp; - exposure.gain[0] = dev->first_gain; - exposure.gain[1] = dev->first_diggain; - mt9m114_s_exposure(sd, &exposure); - } - dev->streamon = 1; - - } else { - dev->streamon = 0; - ret = mt9m114_set_suspend(sd); - } - - return ret; -} - -static int mt9m114_enum_mbus_code(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_mbus_code_enum *code) -{ - if (code->index) - return -EINVAL; - code->code = MEDIA_BUS_FMT_SGRBG10_1X10; - - return 0; -} - -static int mt9m114_enum_frame_size(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_frame_size_enum *fse) -{ - - unsigned int index = fse->index; - - if (index >= N_RES) - return -EINVAL; - - fse->min_width = mt9m114_res[index].width; - fse->min_height = mt9m114_res[index].height; - fse->max_width = mt9m114_res[index].width; - fse->max_height = mt9m114_res[index].height; - - return 0; -} - -static int mt9m114_g_skip_frames(struct v4l2_subdev *sd, u32 *frames) -{ - int index; - struct mt9m114_device *snr = to_mt9m114_sensor(sd); - - if (frames == NULL) - return -EINVAL; - - for (index = 0; index < N_RES; index++) { - if (mt9m114_res[index].res == snr->res) - break; - } - - if (index >= N_RES) - return -EINVAL; - - *frames = mt9m114_res[index].skip_frames; - - return 0; -} - -static const struct v4l2_subdev_video_ops mt9m114_video_ops = { - .s_stream = mt9m114_s_stream, - .g_frame_interval = mt9m114_g_frame_interval, -}; - -static const struct v4l2_subdev_sensor_ops mt9m114_sensor_ops = { - .g_skip_frames = mt9m114_g_skip_frames, -}; - -static const struct v4l2_subdev_core_ops mt9m114_core_ops = { - .s_power = mt9m114_s_power, - .ioctl = mt9m114_ioctl, -}; - -/* REVISIT: Do we need pad operations? */ -static const struct v4l2_subdev_pad_ops mt9m114_pad_ops = { - .enum_mbus_code = mt9m114_enum_mbus_code, - .enum_frame_size = mt9m114_enum_frame_size, - .get_fmt = mt9m114_get_fmt, - .set_fmt = mt9m114_set_fmt, -#ifndef CSS15 - .set_selection = mt9m114_s_exposure_selection, -#endif -}; - -static const struct v4l2_subdev_ops mt9m114_ops = { - .core = &mt9m114_core_ops, - .video = &mt9m114_video_ops, - .pad = &mt9m114_pad_ops, - .sensor = &mt9m114_sensor_ops, -}; - -static int mt9m114_remove(struct i2c_client *client) -{ - struct mt9m114_device *dev; - struct v4l2_subdev *sd = i2c_get_clientdata(client); - - dev = container_of(sd, struct mt9m114_device, sd); - dev->platform_data->csi_cfg(sd, 0); - v4l2_device_unregister_subdev(sd); - media_entity_cleanup(&dev->sd.entity); - v4l2_ctrl_handler_free(&dev->ctrl_handler); - kfree(dev); - return 0; -} - -static int mt9m114_probe(struct i2c_client *client) -{ - struct mt9m114_device *dev; - int ret = 0; - unsigned int i; - void *pdata; - - /* Setup sensor configuration structure */ - dev = kzalloc(sizeof(*dev), GFP_KERNEL); - if (!dev) - return -ENOMEM; - - v4l2_i2c_subdev_init(&dev->sd, client, &mt9m114_ops); - pdata = gmin_camera_platform_data(&dev->sd, - ATOMISP_INPUT_FORMAT_RAW_10, - atomisp_bayer_order_grbg); - if (pdata) - ret = mt9m114_s_config(&dev->sd, client->irq, pdata); - if (!pdata || ret) { - v4l2_device_unregister_subdev(&dev->sd); - kfree(dev); - return ret; - } - - ret = atomisp_register_i2c_module(&dev->sd, pdata, RAW_CAMERA); - if (ret) { - v4l2_device_unregister_subdev(&dev->sd); - kfree(dev); - /* Coverity CID 298095 - return on error */ - return ret; - } - - /*TODO add format code here*/ - dev->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; - dev->pad.flags = MEDIA_PAD_FL_SOURCE; - dev->format.code = MEDIA_BUS_FMT_SGRBG10_1X10; - dev->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR; - - ret = - v4l2_ctrl_handler_init(&dev->ctrl_handler, - ARRAY_SIZE(mt9m114_controls)); - if (ret) { - mt9m114_remove(client); - return ret; - } - - for (i = 0; i < ARRAY_SIZE(mt9m114_controls); i++) - v4l2_ctrl_new_custom(&dev->ctrl_handler, &mt9m114_controls[i], - NULL); - - if (dev->ctrl_handler.error) { - mt9m114_remove(client); - return dev->ctrl_handler.error; - } - - /* Use same lock for controls as for everything else. */ - dev->ctrl_handler.lock = &dev->input_lock; - dev->sd.ctrl_handler = &dev->ctrl_handler; - - /* REVISIT: Do we need media controller? */ - ret = media_entity_pads_init(&dev->sd.entity, 1, &dev->pad); - if (ret) { - mt9m114_remove(client); - return ret; - } - return 0; -} - -static const struct acpi_device_id mt9m114_acpi_match[] = { - { "INT33F0" }, - { "CRMT1040" }, - {}, -}; -MODULE_DEVICE_TABLE(acpi, mt9m114_acpi_match); - -static struct i2c_driver mt9m114_driver = { - .driver = { - .name = "mt9m114", - .acpi_match_table = mt9m114_acpi_match, - }, - .probe_new = mt9m114_probe, - .remove = mt9m114_remove, -}; -module_i2c_driver(mt9m114_driver); - -MODULE_AUTHOR("Shuguang Gong <Shuguang.gong@intel.com>"); -MODULE_LICENSE("GPL"); |