| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * 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, "%s error exit, read failed\n", __func__); |
| 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, "%s error exit, write failed\n", __func__); |
| 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 (!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 (!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) |
| *h_size = hsize; |
| if (v_size) |
| *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) |
| 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) |
| 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; |
| } |
| |
| /* |
| * 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; |
| } |
| |
| 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; |
| case V4L2_CID_EXPOSURE_METERING: |
| ret = mt9m114_s_exposure_metering(&dev->sd, ctrl->val); |
| break; |
| 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; |
| case V4L2_CID_EXPOSURE_ZONE_NUM: |
| ret = mt9m114_g_exposure_zone_num(&dev->sd, &ctrl->val); |
| break; |
| 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, |
| }, |
| { |
| .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, |
| }, |
| { |
| .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 (!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) |
| 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, |
| .set_selection = mt9m114_s_exposure_selection, |
| }; |
| |
| 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"); |