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author | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-09-22 19:54:53 (GMT) |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-09-22 20:01:40 (GMT) |
commit | ae19ffbadc1b2100285a5b5b3d0a4e0a11390904 (patch) | |
tree | 3c2086ab67398a019089a47ca3f362a4bc6db74f /drivers/staging/dream/camera/mt9d112.c | |
parent | 34e84f39a27d059a3e6ec6e8b94aafa702e6f220 (diff) | |
parent | 9173a8ef24a6b1b8031507b35b8ffe5f85a87692 (diff) | |
download | linux-fsl-qoriq-ae19ffbadc1b2100285a5b5b3d0a4e0a11390904.tar.xz |
Merge branch 'master' into for-linus
Diffstat (limited to 'drivers/staging/dream/camera/mt9d112.c')
-rw-r--r-- | drivers/staging/dream/camera/mt9d112.c | 761 |
1 files changed, 761 insertions, 0 deletions
diff --git a/drivers/staging/dream/camera/mt9d112.c b/drivers/staging/dream/camera/mt9d112.c new file mode 100644 index 0000000..4f938f9 --- /dev/null +++ b/drivers/staging/dream/camera/mt9d112.c @@ -0,0 +1,761 @@ +/* + * Copyright (C) 2008-2009 QUALCOMM Incorporated. + */ + +#include <linux/delay.h> +#include <linux/types.h> +#include <linux/i2c.h> +#include <linux/uaccess.h> +#include <linux/miscdevice.h> +#include <media/msm_camera.h> +#include <mach/gpio.h> +#include "mt9d112.h" + +/* Micron MT9D112 Registers and their values */ +/* Sensor Core Registers */ +#define REG_MT9D112_MODEL_ID 0x3000 +#define MT9D112_MODEL_ID 0x1580 + +/* SOC Registers Page 1 */ +#define REG_MT9D112_SENSOR_RESET 0x301A +#define REG_MT9D112_STANDBY_CONTROL 0x3202 +#define REG_MT9D112_MCU_BOOT 0x3386 + +struct mt9d112_work { + struct work_struct work; +}; + +static struct mt9d112_work *mt9d112_sensorw; +static struct i2c_client *mt9d112_client; + +struct mt9d112_ctrl { + const struct msm_camera_sensor_info *sensordata; +}; + + +static struct mt9d112_ctrl *mt9d112_ctrl; + +static DECLARE_WAIT_QUEUE_HEAD(mt9d112_wait_queue); +DECLARE_MUTEX(mt9d112_sem); + + +/*============================================================= + EXTERNAL DECLARATIONS +==============================================================*/ +extern struct mt9d112_reg mt9d112_regs; + + +/*=============================================================*/ + +static int mt9d112_reset(const struct msm_camera_sensor_info *dev) +{ + int rc = 0; + + rc = gpio_request(dev->sensor_reset, "mt9d112"); + + if (!rc) { + rc = gpio_direction_output(dev->sensor_reset, 0); + mdelay(20); + rc = gpio_direction_output(dev->sensor_reset, 1); + } + + gpio_free(dev->sensor_reset); + return rc; +} + +static int32_t mt9d112_i2c_txdata(unsigned short saddr, + unsigned char *txdata, int length) +{ + struct i2c_msg msg[] = { + { + .addr = saddr, + .flags = 0, + .len = length, + .buf = txdata, + }, + }; + + if (i2c_transfer(mt9d112_client->adapter, msg, 1) < 0) { + CDBG("mt9d112_i2c_txdata failed\n"); + return -EIO; + } + + return 0; +} + +static int32_t mt9d112_i2c_write(unsigned short saddr, + unsigned short waddr, unsigned short wdata, enum mt9d112_width width) +{ + int32_t rc = -EIO; + unsigned char buf[4]; + + memset(buf, 0, sizeof(buf)); + switch (width) { + case WORD_LEN: { + buf[0] = (waddr & 0xFF00)>>8; + buf[1] = (waddr & 0x00FF); + buf[2] = (wdata & 0xFF00)>>8; + buf[3] = (wdata & 0x00FF); + + rc = mt9d112_i2c_txdata(saddr, buf, 4); + } + break; + + case BYTE_LEN: { + buf[0] = waddr; + buf[1] = wdata; + rc = mt9d112_i2c_txdata(saddr, buf, 2); + } + break; + + default: + break; + } + + if (rc < 0) + CDBG( + "i2c_write failed, addr = 0x%x, val = 0x%x!\n", + waddr, wdata); + + return rc; +} + +static int32_t mt9d112_i2c_write_table( + struct mt9d112_i2c_reg_conf const *reg_conf_tbl, + int num_of_items_in_table) +{ + int i; + int32_t rc = -EIO; + + for (i = 0; i < num_of_items_in_table; i++) { + rc = mt9d112_i2c_write(mt9d112_client->addr, + reg_conf_tbl->waddr, reg_conf_tbl->wdata, + reg_conf_tbl->width); + if (rc < 0) + break; + if (reg_conf_tbl->mdelay_time != 0) + mdelay(reg_conf_tbl->mdelay_time); + reg_conf_tbl++; + } + + return rc; +} + +static int mt9d112_i2c_rxdata(unsigned short saddr, + unsigned char *rxdata, int length) +{ + struct i2c_msg msgs[] = { + { + .addr = saddr, + .flags = 0, + .len = 2, + .buf = rxdata, + }, + { + .addr = saddr, + .flags = I2C_M_RD, + .len = length, + .buf = rxdata, + }, + }; + + if (i2c_transfer(mt9d112_client->adapter, msgs, 2) < 0) { + CDBG("mt9d112_i2c_rxdata failed!\n"); + return -EIO; + } + + return 0; +} + +static int32_t mt9d112_i2c_read(unsigned short saddr, + unsigned short raddr, unsigned short *rdata, enum mt9d112_width width) +{ + int32_t rc = 0; + unsigned char buf[4]; + + if (!rdata) + return -EIO; + + memset(buf, 0, sizeof(buf)); + + switch (width) { + case WORD_LEN: { + buf[0] = (raddr & 0xFF00)>>8; + buf[1] = (raddr & 0x00FF); + + rc = mt9d112_i2c_rxdata(saddr, buf, 2); + if (rc < 0) + return rc; + + *rdata = buf[0] << 8 | buf[1]; + } + break; + + default: + break; + } + + if (rc < 0) + CDBG("mt9d112_i2c_read failed!\n"); + + return rc; +} + +static int32_t mt9d112_set_lens_roll_off(void) +{ + int32_t rc = 0; + rc = mt9d112_i2c_write_table(&mt9d112_regs.rftbl[0], + mt9d112_regs.rftbl_size); + return rc; +} + +static long mt9d112_reg_init(void) +{ + int32_t array_length; + int32_t i; + long rc; + + /* PLL Setup Start */ + rc = mt9d112_i2c_write_table(&mt9d112_regs.plltbl[0], + mt9d112_regs.plltbl_size); + + if (rc < 0) + return rc; + /* PLL Setup End */ + + array_length = mt9d112_regs.prev_snap_reg_settings_size; + + /* Configure sensor for Preview mode and Snapshot mode */ + for (i = 0; i < array_length; i++) { + rc = mt9d112_i2c_write(mt9d112_client->addr, + mt9d112_regs.prev_snap_reg_settings[i].register_address, + mt9d112_regs.prev_snap_reg_settings[i].register_value, + WORD_LEN); + + if (rc < 0) + return rc; + } + + /* Configure for Noise Reduction, Saturation and Aperture Correction */ + array_length = mt9d112_regs.noise_reduction_reg_settings_size; + + for (i = 0; i < array_length; i++) { + rc = mt9d112_i2c_write(mt9d112_client->addr, + mt9d112_regs.noise_reduction_reg_settings[i].register_address, + mt9d112_regs.noise_reduction_reg_settings[i].register_value, + WORD_LEN); + + if (rc < 0) + return rc; + } + + /* Set Color Kill Saturation point to optimum value */ + rc = + mt9d112_i2c_write(mt9d112_client->addr, + 0x35A4, + 0x0593, + WORD_LEN); + if (rc < 0) + return rc; + + rc = mt9d112_i2c_write_table(&mt9d112_regs.stbl[0], + mt9d112_regs.stbl_size); + if (rc < 0) + return rc; + + rc = mt9d112_set_lens_roll_off(); + if (rc < 0) + return rc; + + return 0; +} + +static long mt9d112_set_sensor_mode(int mode) +{ + uint16_t clock; + long rc = 0; + + switch (mode) { + case SENSOR_PREVIEW_MODE: + rc = + mt9d112_i2c_write(mt9d112_client->addr, + 0x338C, 0xA20C, WORD_LEN); + if (rc < 0) + return rc; + + rc = + mt9d112_i2c_write(mt9d112_client->addr, + 0x3390, 0x0004, WORD_LEN); + if (rc < 0) + return rc; + + rc = + mt9d112_i2c_write(mt9d112_client->addr, + 0x338C, 0xA215, WORD_LEN); + if (rc < 0) + return rc; + + rc = + mt9d112_i2c_write(mt9d112_client->addr, + 0x3390, 0x0004, WORD_LEN); + if (rc < 0) + return rc; + + rc = + mt9d112_i2c_write(mt9d112_client->addr, + 0x338C, 0xA20B, WORD_LEN); + if (rc < 0) + return rc; + + rc = + mt9d112_i2c_write(mt9d112_client->addr, + 0x3390, 0x0000, WORD_LEN); + if (rc < 0) + return rc; + + clock = 0x0250; + + rc = + mt9d112_i2c_write(mt9d112_client->addr, + 0x341C, clock, WORD_LEN); + if (rc < 0) + return rc; + + rc = + mt9d112_i2c_write(mt9d112_client->addr, + 0x338C, 0xA103, WORD_LEN); + if (rc < 0) + return rc; + + rc = + mt9d112_i2c_write(mt9d112_client->addr, + 0x3390, 0x0001, WORD_LEN); + if (rc < 0) + return rc; + + mdelay(5); + break; + + case SENSOR_SNAPSHOT_MODE: + /* Switch to lower fps for Snapshot */ + rc = + mt9d112_i2c_write(mt9d112_client->addr, + 0x341C, 0x0120, WORD_LEN); + if (rc < 0) + return rc; + + rc = + mt9d112_i2c_write(mt9d112_client->addr, + 0x338C, 0xA120, WORD_LEN); + if (rc < 0) + return rc; + + rc = + mt9d112_i2c_write(mt9d112_client->addr, + 0x3390, 0x0002, WORD_LEN); + if (rc < 0) + return rc; + + mdelay(5); + + rc = + mt9d112_i2c_write(mt9d112_client->addr, + 0x338C, 0xA103, WORD_LEN); + if (rc < 0) + return rc; + + rc = + mt9d112_i2c_write(mt9d112_client->addr, + 0x3390, 0x0002, WORD_LEN); + if (rc < 0) + return rc; + break; + + default: + return -EINVAL; + } + + return 0; +} + +static long mt9d112_set_effect(int mode, int effect) +{ + uint16_t reg_addr; + uint16_t reg_val; + long rc = 0; + + switch (mode) { + case SENSOR_PREVIEW_MODE: + /* Context A Special Effects */ + reg_addr = 0x2799; + break; + + case SENSOR_SNAPSHOT_MODE: + /* Context B Special Effects */ + reg_addr = 0x279B; + break; + + default: + reg_addr = 0x2799; + break; + } + + switch (effect) { + case CAMERA_EFFECT_OFF: { + reg_val = 0x6440; + + rc = mt9d112_i2c_write(mt9d112_client->addr, + 0x338C, reg_addr, WORD_LEN); + if (rc < 0) + return rc; + + rc = mt9d112_i2c_write(mt9d112_client->addr, + 0x3390, reg_val, WORD_LEN); + if (rc < 0) + return rc; + } + break; + + case CAMERA_EFFECT_MONO: { + reg_val = 0x6441; + rc = mt9d112_i2c_write(mt9d112_client->addr, + 0x338C, reg_addr, WORD_LEN); + if (rc < 0) + return rc; + + rc = mt9d112_i2c_write(mt9d112_client->addr, + 0x3390, reg_val, WORD_LEN); + if (rc < 0) + return rc; + } + break; + + case CAMERA_EFFECT_NEGATIVE: { + reg_val = 0x6443; + rc = mt9d112_i2c_write(mt9d112_client->addr, + 0x338C, reg_addr, WORD_LEN); + if (rc < 0) + return rc; + + rc = mt9d112_i2c_write(mt9d112_client->addr, + 0x3390, reg_val, WORD_LEN); + if (rc < 0) + return rc; + } + break; + + case CAMERA_EFFECT_SOLARIZE: { + reg_val = 0x6445; + rc = mt9d112_i2c_write(mt9d112_client->addr, + 0x338C, reg_addr, WORD_LEN); + if (rc < 0) + return rc; + + rc = mt9d112_i2c_write(mt9d112_client->addr, + 0x3390, reg_val, WORD_LEN); + if (rc < 0) + return rc; + } + break; + + case CAMERA_EFFECT_SEPIA: { + reg_val = 0x6442; + rc = mt9d112_i2c_write(mt9d112_client->addr, + 0x338C, reg_addr, WORD_LEN); + if (rc < 0) + return rc; + + rc = mt9d112_i2c_write(mt9d112_client->addr, + 0x3390, reg_val, WORD_LEN); + if (rc < 0) + return rc; + } + break; + + case CAMERA_EFFECT_PASTEL: + case CAMERA_EFFECT_MOSAIC: + case CAMERA_EFFECT_RESIZE: + return -EINVAL; + + default: { + reg_val = 0x6440; + rc = mt9d112_i2c_write(mt9d112_client->addr, + 0x338C, reg_addr, WORD_LEN); + if (rc < 0) + return rc; + + rc = mt9d112_i2c_write(mt9d112_client->addr, + 0x3390, reg_val, WORD_LEN); + if (rc < 0) + return rc; + + return -EINVAL; + } + } + + /* Refresh Sequencer */ + rc = mt9d112_i2c_write(mt9d112_client->addr, + 0x338C, 0xA103, WORD_LEN); + if (rc < 0) + return rc; + + rc = mt9d112_i2c_write(mt9d112_client->addr, + 0x3390, 0x0005, WORD_LEN); + + return rc; +} + +static int mt9d112_sensor_init_probe(const struct msm_camera_sensor_info *data) +{ + uint16_t model_id = 0; + int rc = 0; + + CDBG("init entry \n"); + rc = mt9d112_reset(data); + if (rc < 0) { + CDBG("reset failed!\n"); + goto init_probe_fail; + } + + mdelay(5); + + /* Micron suggested Power up block Start: + * Put MCU into Reset - Stop MCU */ + rc = mt9d112_i2c_write(mt9d112_client->addr, + REG_MT9D112_MCU_BOOT, 0x0501, WORD_LEN); + if (rc < 0) + goto init_probe_fail; + + /* Pull MCU from Reset - Start MCU */ + rc = mt9d112_i2c_write(mt9d112_client->addr, + REG_MT9D112_MCU_BOOT, 0x0500, WORD_LEN); + if (rc < 0) + goto init_probe_fail; + + mdelay(5); + + /* Micron Suggested - Power up block */ + rc = mt9d112_i2c_write(mt9d112_client->addr, + REG_MT9D112_SENSOR_RESET, 0x0ACC, WORD_LEN); + if (rc < 0) + goto init_probe_fail; + + rc = mt9d112_i2c_write(mt9d112_client->addr, + REG_MT9D112_STANDBY_CONTROL, 0x0008, WORD_LEN); + if (rc < 0) + goto init_probe_fail; + + /* FUSED_DEFECT_CORRECTION */ + rc = mt9d112_i2c_write(mt9d112_client->addr, + 0x33F4, 0x031D, WORD_LEN); + if (rc < 0) + goto init_probe_fail; + + mdelay(5); + + /* Micron suggested Power up block End */ + /* Read the Model ID of the sensor */ + rc = mt9d112_i2c_read(mt9d112_client->addr, + REG_MT9D112_MODEL_ID, &model_id, WORD_LEN); + if (rc < 0) + goto init_probe_fail; + + CDBG("mt9d112 model_id = 0x%x\n", model_id); + + /* Check if it matches it with the value in Datasheet */ + if (model_id != MT9D112_MODEL_ID) { + rc = -EINVAL; + goto init_probe_fail; + } + + rc = mt9d112_reg_init(); + if (rc < 0) + goto init_probe_fail; + + return rc; + +init_probe_fail: + return rc; +} + +int mt9d112_sensor_init(const struct msm_camera_sensor_info *data) +{ + int rc = 0; + + mt9d112_ctrl = kzalloc(sizeof(struct mt9d112_ctrl), GFP_KERNEL); + if (!mt9d112_ctrl) { + CDBG("mt9d112_init failed!\n"); + rc = -ENOMEM; + goto init_done; + } + + if (data) + mt9d112_ctrl->sensordata = data; + + /* Input MCLK = 24MHz */ + msm_camio_clk_rate_set(24000000); + mdelay(5); + + msm_camio_camif_pad_reg_reset(); + + rc = mt9d112_sensor_init_probe(data); + if (rc < 0) { + CDBG("mt9d112_sensor_init failed!\n"); + goto init_fail; + } + +init_done: + return rc; + +init_fail: + kfree(mt9d112_ctrl); + return rc; +} + +static int mt9d112_init_client(struct i2c_client *client) +{ + /* Initialize the MSM_CAMI2C Chip */ + init_waitqueue_head(&mt9d112_wait_queue); + return 0; +} + +int mt9d112_sensor_config(void __user *argp) +{ + struct sensor_cfg_data cfg_data; + long rc = 0; + + if (copy_from_user(&cfg_data, + (void *)argp, + sizeof(struct sensor_cfg_data))) + return -EFAULT; + + /* down(&mt9d112_sem); */ + + CDBG("mt9d112_ioctl, cfgtype = %d, mode = %d\n", + cfg_data.cfgtype, cfg_data.mode); + + switch (cfg_data.cfgtype) { + case CFG_SET_MODE: + rc = mt9d112_set_sensor_mode( + cfg_data.mode); + break; + + case CFG_SET_EFFECT: + rc = mt9d112_set_effect(cfg_data.mode, + cfg_data.cfg.effect); + break; + + case CFG_GET_AF_MAX_STEPS: + default: + rc = -EINVAL; + break; + } + + /* up(&mt9d112_sem); */ + + return rc; +} + +int mt9d112_sensor_release(void) +{ + int rc = 0; + + /* down(&mt9d112_sem); */ + + kfree(mt9d112_ctrl); + /* up(&mt9d112_sem); */ + + return rc; +} + +static int mt9d112_i2c_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + int rc = 0; + if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { + rc = -ENOTSUPP; + goto probe_failure; + } + + mt9d112_sensorw = + kzalloc(sizeof(struct mt9d112_work), GFP_KERNEL); + + if (!mt9d112_sensorw) { + rc = -ENOMEM; + goto probe_failure; + } + + i2c_set_clientdata(client, mt9d112_sensorw); + mt9d112_init_client(client); + mt9d112_client = client; + + CDBG("mt9d112_probe succeeded!\n"); + + return 0; + +probe_failure: + kfree(mt9d112_sensorw); + mt9d112_sensorw = NULL; + CDBG("mt9d112_probe failed!\n"); + return rc; +} + +static const struct i2c_device_id mt9d112_i2c_id[] = { + { "mt9d112", 0}, + { }, +}; + +static struct i2c_driver mt9d112_i2c_driver = { + .id_table = mt9d112_i2c_id, + .probe = mt9d112_i2c_probe, + .remove = __exit_p(mt9d112_i2c_remove), + .driver = { + .name = "mt9d112", + }, +}; + +static int mt9d112_sensor_probe(const struct msm_camera_sensor_info *info, + struct msm_sensor_ctrl *s) +{ + int rc = i2c_add_driver(&mt9d112_i2c_driver); + if (rc < 0 || mt9d112_client == NULL) { + rc = -ENOTSUPP; + goto probe_done; + } + + /* Input MCLK = 24MHz */ + msm_camio_clk_rate_set(24000000); + mdelay(5); + + rc = mt9d112_sensor_init_probe(info); + if (rc < 0) + goto probe_done; + + s->s_init = mt9d112_sensor_init; + s->s_release = mt9d112_sensor_release; + s->s_config = mt9d112_sensor_config; + +probe_done: + CDBG("%s %s:%d\n", __FILE__, __func__, __LINE__); + return rc; +} + +static int __mt9d112_probe(struct platform_device *pdev) +{ + return msm_camera_drv_start(pdev, mt9d112_sensor_probe); +} + +static struct platform_driver msm_camera_driver = { + .probe = __mt9d112_probe, + .driver = { + .name = "msm_camera_mt9d112", + .owner = THIS_MODULE, + }, +}; + +static int __init mt9d112_init(void) +{ + return platform_driver_register(&msm_camera_driver); +} + +module_init(mt9d112_init); |