[media] V4L: Add S5C73M3 camera driver
authorAndrzej Hajda <a.hajda@samsung.com>
Thu, 22 Nov 2012 14:39:18 +0000 (11:39 -0300)
committerMauro Carvalho Chehab <mchehab@redhat.com>
Tue, 5 Feb 2013 19:39:04 +0000 (17:39 -0200)
Add driver for S5C73M3 image sensor. The driver exposes the sensor as
two subdevs: pure sensor and output interface. Two subdev architecture
supports interleaved UYVY/JPEG image format with separate frame size
for both sub-formats, there is a spearate pad for each sub-format.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
drivers/media/i2c/Kconfig
drivers/media/i2c/Makefile
drivers/media/i2c/s5c73m3/Makefile [new file with mode: 0644]
drivers/media/i2c/s5c73m3/s5c73m3-core.c [new file with mode: 0644]
drivers/media/i2c/s5c73m3/s5c73m3-ctrls.c [new file with mode: 0644]
drivers/media/i2c/s5c73m3/s5c73m3-spi.c [new file with mode: 0644]
drivers/media/i2c/s5c73m3/s5c73m3.h [new file with mode: 0644]
include/media/s5c73m3.h [new file with mode: 0644]

index d73078cdffec65553d2adf35052fb87e09b96047..ecdf7e3fdcf4eb1aeca112c9d6b31a8e1d19e2b2 100644 (file)
@@ -523,6 +523,13 @@ config VIDEO_S5K4ECGX
 
 source "drivers/media/i2c/smiapp/Kconfig"
 
+config VIDEO_S5C73M3
+       tristate "Samsung S5C73M3 sensor support"
+       depends on I2C && SPI && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
+       ---help---
+       This is a V4L2 sensor-level driver for Samsung S5C73M3
+       8 Mpixel camera.
+
 comment "Flash devices"
 
 config VIDEO_ADP1653
index 8b62e54d3884db92244bc43be540bc9ca452291e..b35e25798cd3ff30cb780f276b4d89c3e0029311 100644 (file)
@@ -59,6 +59,7 @@ obj-$(CONFIG_VIDEO_SR030PC30) += sr030pc30.o
 obj-$(CONFIG_VIDEO_NOON010PC30)        += noon010pc30.o
 obj-$(CONFIG_VIDEO_S5K6AA)     += s5k6aa.o
 obj-$(CONFIG_VIDEO_S5K4ECGX)   += s5k4ecgx.o
+obj-$(CONFIG_VIDEO_S5C73M3)    += s5c73m3/
 obj-$(CONFIG_VIDEO_ADP1653)    += adp1653.o
 obj-$(CONFIG_VIDEO_AS3645A)    += as3645a.o
 obj-$(CONFIG_VIDEO_SMIAPP_PLL) += smiapp-pll.o
diff --git a/drivers/media/i2c/s5c73m3/Makefile b/drivers/media/i2c/s5c73m3/Makefile
new file mode 100644 (file)
index 0000000..fa4df34
--- /dev/null
@@ -0,0 +1,2 @@
+s5c73m3-objs                   := s5c73m3-core.o s5c73m3-spi.o s5c73m3-ctrls.o
+obj-$(CONFIG_VIDEO_S5C73M3)    += s5c73m3.o
diff --git a/drivers/media/i2c/s5c73m3/s5c73m3-core.c b/drivers/media/i2c/s5c73m3/s5c73m3-core.c
new file mode 100644 (file)
index 0000000..600909d
--- /dev/null
@@ -0,0 +1,1706 @@
+/*
+ * Samsung LSI S5C73M3 8M pixel camera driver
+ *
+ * Copyright (C) 2012, Samsung Electronics, Co., Ltd.
+ * Sylwester Nawrocki <s.nawrocki@samsung.com>
+ * Andrzej Hajda <a.hajda@samsung.com>
+ *
+ * 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/sizes.h>
+#include <linux/delay.h>
+#include <linux/firmware.h>
+#include <linux/gpio.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/media.h>
+#include <linux/module.h>
+#include <linux/regulator/consumer.h>
+#include <linux/slab.h>
+#include <linux/spi/spi.h>
+#include <linux/videodev2.h>
+#include <media/media-entity.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-subdev.h>
+#include <media/v4l2-mediabus.h>
+#include <media/s5c73m3.h>
+
+#include "s5c73m3.h"
+
+int s5c73m3_dbg;
+module_param_named(debug, s5c73m3_dbg, int, 0644);
+
+int boot_from_rom = 1;
+module_param(boot_from_rom, int, 0644);
+
+int update_fw;
+module_param(update_fw, int, 0644);
+
+#define S5C73M3_EMBEDDED_DATA_MAXLEN   SZ_4K
+
+static const char * const s5c73m3_supply_names[S5C73M3_MAX_SUPPLIES] = {
+       "vdd-int",      /* Digital Core supply (1.2V), CAM_ISP_CORE_1.2V */
+       "vdda",         /* Analog Core supply (1.2V), CAM_SENSOR_CORE_1.2V */
+       "vdd-reg",      /* Regulator input supply (2.8V), CAM_SENSOR_A2.8V */
+       "vddio-host",   /* Digital Host I/O power supply (1.8V...2.8V),
+                          CAM_ISP_SENSOR_1.8V */
+       "vddio-cis",    /* Digital CIS I/O power (1.2V...1.8V),
+                          CAM_ISP_MIPI_1.2V */
+       "vdd-af",       /* Lens, CAM_AF_2.8V */
+};
+
+static const struct s5c73m3_frame_size s5c73m3_isp_resolutions[] = {
+       { 320,  240,    COMM_CHG_MODE_YUV_320_240 },
+       { 352,  288,    COMM_CHG_MODE_YUV_352_288 },
+       { 640,  480,    COMM_CHG_MODE_YUV_640_480 },
+       { 880,  720,    COMM_CHG_MODE_YUV_880_720 },
+       { 960,  720,    COMM_CHG_MODE_YUV_960_720 },
+       { 1008, 672,    COMM_CHG_MODE_YUV_1008_672 },
+       { 1184, 666,    COMM_CHG_MODE_YUV_1184_666 },
+       { 1280, 720,    COMM_CHG_MODE_YUV_1280_720 },
+       { 1536, 864,    COMM_CHG_MODE_YUV_1536_864 },
+       { 1600, 1200,   COMM_CHG_MODE_YUV_1600_1200 },
+       { 1632, 1224,   COMM_CHG_MODE_YUV_1632_1224 },
+       { 1920, 1080,   COMM_CHG_MODE_YUV_1920_1080 },
+       { 1920, 1440,   COMM_CHG_MODE_YUV_1920_1440 },
+       { 2304, 1296,   COMM_CHG_MODE_YUV_2304_1296 },
+       { 3264, 2448,   COMM_CHG_MODE_YUV_3264_2448 },
+};
+
+static const struct s5c73m3_frame_size s5c73m3_jpeg_resolutions[] = {
+       { 640,  480,    COMM_CHG_MODE_JPEG_640_480 },
+       { 800,  450,    COMM_CHG_MODE_JPEG_800_450 },
+       { 800,  600,    COMM_CHG_MODE_JPEG_800_600 },
+       { 1024, 768,    COMM_CHG_MODE_JPEG_1024_768 },
+       { 1280, 720,    COMM_CHG_MODE_JPEG_1280_720 },
+       { 1280, 960,    COMM_CHG_MODE_JPEG_1280_960 },
+       { 1600, 900,    COMM_CHG_MODE_JPEG_1600_900 },
+       { 1600, 1200,   COMM_CHG_MODE_JPEG_1600_1200 },
+       { 2048, 1152,   COMM_CHG_MODE_JPEG_2048_1152 },
+       { 2048, 1536,   COMM_CHG_MODE_JPEG_2048_1536 },
+       { 2560, 1440,   COMM_CHG_MODE_JPEG_2560_1440 },
+       { 2560, 1920,   COMM_CHG_MODE_JPEG_2560_1920 },
+       { 3264, 1836,   COMM_CHG_MODE_JPEG_3264_1836 },
+       { 3264, 2176,   COMM_CHG_MODE_JPEG_3264_2176 },
+       { 3264, 2448,   COMM_CHG_MODE_JPEG_3264_2448 },
+};
+
+static const struct s5c73m3_frame_size * const s5c73m3_resolutions[] = {
+       [RES_ISP] = s5c73m3_isp_resolutions,
+       [RES_JPEG] = s5c73m3_jpeg_resolutions
+};
+
+static const int s5c73m3_resolutions_len[] = {
+       [RES_ISP] = ARRAY_SIZE(s5c73m3_isp_resolutions),
+       [RES_JPEG] = ARRAY_SIZE(s5c73m3_jpeg_resolutions)
+};
+
+static const struct s5c73m3_interval s5c73m3_intervals[] = {
+       { COMM_FRAME_RATE_FIXED_7FPS, {142857, 1000000}, {3264, 2448} },
+       { COMM_FRAME_RATE_FIXED_15FPS, {66667, 1000000}, {3264, 2448} },
+       { COMM_FRAME_RATE_FIXED_20FPS, {50000, 1000000}, {2304, 1296} },
+       { COMM_FRAME_RATE_FIXED_30FPS, {33333, 1000000}, {2304, 1296} },
+};
+
+#define S5C73M3_DEFAULT_FRAME_INTERVAL 3 /* 30 fps */
+
+static void s5c73m3_fill_mbus_fmt(struct v4l2_mbus_framefmt *mf,
+                                 const struct s5c73m3_frame_size *fs,
+                                 u32 code)
+{
+       mf->width = fs->width;
+       mf->height = fs->height;
+       mf->code = code;
+       mf->colorspace = V4L2_COLORSPACE_JPEG;
+       mf->field = V4L2_FIELD_NONE;
+}
+
+static int s5c73m3_i2c_write(struct i2c_client *client, u16 addr, u16 data)
+{
+       u8 buf[4] = { addr >> 8, addr & 0xff, data >> 8, data & 0xff };
+
+       int ret = i2c_master_send(client, buf, sizeof(buf));
+
+       v4l_dbg(4, s5c73m3_dbg, client, "%s: addr 0x%04x, data 0x%04x\n",
+                __func__, addr, data);
+
+       if (ret == 4)
+               return 0;
+
+       return ret < 0 ? ret : -EREMOTEIO;
+}
+
+static int s5c73m3_i2c_read(struct i2c_client *client, u16 addr, u16 *data)
+{
+       int ret;
+       u8 rbuf[2], wbuf[2] = { addr >> 8, addr & 0xff };
+       struct i2c_msg msg[2] = {
+               {
+                       .addr = client->addr,
+                       .flags = 0,
+                       .len = sizeof(wbuf),
+                       .buf = wbuf
+               }, {
+                       .addr = client->addr,
+                       .flags = I2C_M_RD,
+                       .len = sizeof(rbuf),
+                       .buf = rbuf
+               }
+       };
+       /*
+        * Issue repeated START after writing 2 address bytes and
+        * just one STOP only after reading the data bytes.
+        */
+       ret = i2c_transfer(client->adapter, msg, 2);
+       if (ret == 2) {
+               *data = be16_to_cpup((u16 *)rbuf);
+               v4l2_dbg(4, s5c73m3_dbg, client,
+                        "%s: addr: 0x%04x, data: 0x%04x\n",
+                        __func__, addr, *data);
+               return 0;
+       }
+
+       v4l2_err(client, "I2C read failed: addr: %04x, (%d)\n", addr, ret);
+
+       return ret >= 0 ? -EREMOTEIO : ret;
+}
+
+int s5c73m3_write(struct s5c73m3 *state, u32 addr, u16 data)
+{
+       struct i2c_client *client = state->i2c_client;
+       int ret;
+
+       if ((addr ^ state->i2c_write_address) & 0xffff0000) {
+               ret = s5c73m3_i2c_write(client, REG_CMDWR_ADDRH, addr >> 16);
+               if (ret < 0) {
+                       state->i2c_write_address = 0;
+                       return ret;
+               }
+       }
+
+       if ((addr ^ state->i2c_write_address) & 0xffff) {
+               ret = s5c73m3_i2c_write(client, REG_CMDWR_ADDRL, addr & 0xffff);
+               if (ret < 0) {
+                       state->i2c_write_address = 0;
+                       return ret;
+               }
+       }
+
+       state->i2c_write_address = addr;
+
+       ret = s5c73m3_i2c_write(client, REG_CMDBUF_ADDR, data);
+       if (ret < 0)
+               return ret;
+
+       state->i2c_write_address += 2;
+
+       return ret;
+}
+
+int s5c73m3_read(struct s5c73m3 *state, u32 addr, u16 *data)
+{
+       struct i2c_client *client = state->i2c_client;
+       int ret;
+
+       if ((addr ^ state->i2c_read_address) & 0xffff0000) {
+               ret = s5c73m3_i2c_write(client, REG_CMDRD_ADDRH, addr >> 16);
+               if (ret < 0) {
+                       state->i2c_read_address = 0;
+                       return ret;
+               }
+       }
+
+       if ((addr ^ state->i2c_read_address) & 0xffff) {
+               ret = s5c73m3_i2c_write(client, REG_CMDRD_ADDRL, addr & 0xffff);
+               if (ret < 0) {
+                       state->i2c_read_address = 0;
+                       return ret;
+               }
+       }
+
+       state->i2c_read_address = addr;
+
+       ret = s5c73m3_i2c_read(client, REG_CMDBUF_ADDR, data);
+       if (ret < 0)
+               return ret;
+
+       state->i2c_read_address += 2;
+
+       return ret;
+}
+
+static int s5c73m3_check_status(struct s5c73m3 *state, unsigned int value)
+{
+       unsigned long start = jiffies;
+       unsigned long end = start + msecs_to_jiffies(2000);
+       int ret = 0;
+       u16 status;
+       int count = 0;
+
+       while (time_is_after_jiffies(end)) {
+               ret = s5c73m3_read(state, REG_STATUS, &status);
+               if (ret < 0 || status == value)
+                       break;
+               usleep_range(500, 1000);
+               ++count;
+       }
+
+       if (count > 0)
+               v4l2_dbg(1, s5c73m3_dbg, &state->sensor_sd,
+                        "status check took %dms\n",
+                        jiffies_to_msecs(jiffies - start));
+
+       if (ret == 0 && status != value) {
+               u16 i2c_status = 0;
+               u16 i2c_seq_status = 0;
+
+               s5c73m3_read(state, REG_I2C_STATUS, &i2c_status);
+               s5c73m3_read(state, REG_I2C_SEQ_STATUS, &i2c_seq_status);
+
+               v4l2_err(&state->sensor_sd,
+                        "wrong status %#x, expected: %#x, i2c_status: %#x/%#x\n",
+                        status, value, i2c_status, i2c_seq_status);
+
+               return -ETIMEDOUT;
+       }
+
+       return ret;
+}
+
+int s5c73m3_isp_command(struct s5c73m3 *state, u16 command, u16 data)
+{
+       int ret;
+
+       ret = s5c73m3_check_status(state, REG_STATUS_ISP_COMMAND_COMPLETED);
+       if (ret < 0)
+               return ret;
+
+       ret = s5c73m3_write(state, 0x00095000, command);
+       if (ret < 0)
+               return ret;
+
+       ret = s5c73m3_write(state, 0x00095002, data);
+       if (ret < 0)
+               return ret;
+
+       return s5c73m3_write(state, REG_STATUS, 0x0001);
+}
+
+int s5c73m3_isp_comm_result(struct s5c73m3 *state, u16 command, u16 *data)
+{
+       return s5c73m3_read(state, COMM_RESULT_OFFSET + command, data);
+}
+
+static int s5c73m3_set_af_softlanding(struct s5c73m3 *state)
+{
+       unsigned long start = jiffies;
+       u16 af_softlanding;
+       int count = 0;
+       int ret;
+       const char *msg;
+
+       ret = s5c73m3_isp_command(state, COMM_AF_SOFTLANDING,
+                                       COMM_AF_SOFTLANDING_ON);
+       if (ret < 0) {
+               v4l2_info(&state->sensor_sd, "AF soft-landing failed\n");
+               return ret;
+       }
+
+       for (;;) {
+               ret = s5c73m3_isp_comm_result(state, COMM_AF_SOFTLANDING,
+                                                       &af_softlanding);
+               if (ret < 0) {
+                       msg = "failed";
+                       break;
+               }
+               if (af_softlanding == COMM_AF_SOFTLANDING_RES_COMPLETE) {
+                       msg = "succeeded";
+                       break;
+               }
+               if (++count > 100) {
+                       ret = -ETIME;
+                       msg = "timed out";
+                       break;
+               }
+               msleep(25);
+       }
+
+       v4l2_info(&state->sensor_sd, "AF soft-landing %s after %dms\n",
+                 msg, jiffies_to_msecs(jiffies - start));
+
+       return ret;
+}
+
+static int s5c73m3_load_fw(struct v4l2_subdev *sd)
+{
+       struct s5c73m3 *state = sensor_sd_to_s5c73m3(sd);
+       struct i2c_client *client = state->i2c_client;
+       const struct firmware *fw;
+       int ret;
+       char fw_name[20];
+
+       snprintf(fw_name, sizeof(fw_name), "SlimISP_%.2s.bin",
+                                                       state->fw_file_version);
+       ret = request_firmware(&fw, fw_name, &client->dev);
+       if (ret < 0) {
+               v4l2_err(sd, "Firmware request failed (%s)\n", fw_name);
+               return -EINVAL;
+       }
+
+       v4l2_info(sd, "Loading firmware (%s, %d B)\n", fw_name, fw->size);
+
+       ret = s5c73m3_spi_write(state, fw->data, fw->size, 64);
+
+       if (ret >= 0)
+               state->isp_ready = 1;
+       else
+               v4l2_err(sd, "SPI write failed\n");
+
+       release_firmware(fw);
+
+       return ret;
+}
+
+static int s5c73m3_set_frame_size(struct s5c73m3 *state)
+{
+       const struct s5c73m3_frame_size *prev_size =
+                                       state->sensor_pix_size[RES_ISP];
+       const struct s5c73m3_frame_size *cap_size =
+                                       state->sensor_pix_size[RES_JPEG];
+       unsigned int chg_mode;
+
+       v4l2_dbg(1, s5c73m3_dbg, &state->sensor_sd,
+                "Preview size: %dx%d, reg_val: 0x%x\n",
+                prev_size->width, prev_size->height, prev_size->reg_val);
+
+       chg_mode = prev_size->reg_val | COMM_CHG_MODE_NEW;
+
+       if (state->mbus_code == S5C73M3_JPEG_FMT) {
+               v4l2_dbg(1, s5c73m3_dbg, &state->sensor_sd,
+                        "Capture size: %dx%d, reg_val: 0x%x\n",
+                        cap_size->width, cap_size->height, cap_size->reg_val);
+               chg_mode |= cap_size->reg_val;
+       }
+
+       return s5c73m3_isp_command(state, COMM_CHG_MODE, chg_mode);
+}
+
+static int s5c73m3_set_frame_rate(struct s5c73m3 *state)
+{
+       int ret;
+
+       if (state->ctrls.stabilization->val)
+               return 0;
+
+       if (WARN_ON(state->fiv == NULL))
+               return -EINVAL;
+
+       ret = s5c73m3_isp_command(state, COMM_FRAME_RATE, state->fiv->fps_reg);
+       if (!ret)
+               state->apply_fiv = 0;
+
+       return ret;
+}
+
+static int __s5c73m3_s_stream(struct s5c73m3 *state, struct v4l2_subdev *sd,
+                                                               int on)
+{
+       u16 mode;
+       int ret;
+
+       if (on && state->apply_fmt) {
+               if (state->mbus_code == S5C73M3_JPEG_FMT)
+                       mode = COMM_IMG_OUTPUT_INTERLEAVED;
+               else
+                       mode = COMM_IMG_OUTPUT_YUV;
+
+               ret = s5c73m3_isp_command(state, COMM_IMG_OUTPUT, mode);
+               if (!ret)
+                       ret = s5c73m3_set_frame_size(state);
+               if (ret)
+                       return ret;
+               state->apply_fmt = 0;
+       }
+
+       ret = s5c73m3_isp_command(state, COMM_SENSOR_STREAMING, !!on);
+       if (ret)
+               return ret;
+
+       state->streaming = !!on;
+
+       if (!on)
+               return ret;
+
+       if (state->apply_fiv) {
+               ret = s5c73m3_set_frame_rate(state);
+               if (ret < 0)
+                       v4l2_err(sd, "Error setting frame rate(%d)\n", ret);
+       }
+
+       return s5c73m3_check_status(state, REG_STATUS_ISP_COMMAND_COMPLETED);
+}
+
+static int s5c73m3_oif_s_stream(struct v4l2_subdev *sd, int on)
+{
+       struct s5c73m3 *state = oif_sd_to_s5c73m3(sd);
+       int ret;
+
+       mutex_lock(&state->lock);
+       ret = __s5c73m3_s_stream(state, sd, on);
+       mutex_unlock(&state->lock);
+
+       return ret;
+}
+
+static int s5c73m3_system_status_wait(struct s5c73m3 *state, u32 value,
+                                     unsigned int delay, unsigned int steps)
+{
+       u16 reg = 0;
+
+       while (steps-- > 0) {
+               int ret = s5c73m3_read(state, 0x30100010, &reg);
+               if (ret < 0)
+                       return ret;
+               if (reg == value)
+                       return 0;
+               usleep_range(delay, delay + 25);
+       }
+       return -ETIMEDOUT;
+}
+
+static int s5c73m3_read_fw_version(struct s5c73m3 *state)
+{
+       struct v4l2_subdev *sd = &state->sensor_sd;
+       int i, ret;
+       u16 data[2];
+       int offset;
+
+       offset = state->isp_ready ? 0x60 : 0;
+
+       for (i = 0; i < S5C73M3_SENSOR_FW_LEN / 2; i++) {
+               ret = s5c73m3_read(state, offset + i * 2, data);
+               if (ret < 0)
+                       return ret;
+               state->sensor_fw[i * 2] = (char)(*data & 0xff);
+               state->sensor_fw[i * 2 + 1] = (char)(*data >> 8);
+       }
+       state->sensor_fw[S5C73M3_SENSOR_FW_LEN] = '\0';
+
+
+       for (i = 0; i < S5C73M3_SENSOR_TYPE_LEN / 2; i++) {
+               ret = s5c73m3_read(state, offset + 6 + i * 2, data);
+               if (ret < 0)
+                       return ret;
+               state->sensor_type[i * 2] = (char)(*data & 0xff);
+               state->sensor_type[i * 2 + 1] = (char)(*data >> 8);
+       }
+       state->sensor_type[S5C73M3_SENSOR_TYPE_LEN] = '\0';
+
+       ret = s5c73m3_read(state, offset + 0x14, data);
+       if (ret >= 0) {
+               ret = s5c73m3_read(state, offset + 0x16, data + 1);
+               if (ret >= 0)
+                       state->fw_size = data[0] + (data[1] << 16);
+       }
+
+       v4l2_info(sd, "Sensor type: %s, FW version: %s\n",
+                 state->sensor_type, state->sensor_fw);
+       return ret;
+}
+
+static int s5c73m3_fw_update_from(struct s5c73m3 *state)
+{
+       struct v4l2_subdev *sd = &state->sensor_sd;
+       u16 status = COMM_FW_UPDATE_NOT_READY;
+       int ret;
+       int count = 0;
+
+       v4l2_warn(sd, "Updating F-ROM firmware.\n");
+       do {
+               if (status == COMM_FW_UPDATE_NOT_READY) {
+                       ret = s5c73m3_isp_command(state, COMM_FW_UPDATE, 0);
+                       if (ret < 0)
+                               return ret;
+               }
+
+               ret = s5c73m3_read(state, 0x00095906, &status);
+               if (ret < 0)
+                       return ret;
+               switch (status) {
+               case COMM_FW_UPDATE_FAIL:
+                       v4l2_warn(sd, "Updating F-ROM firmware failed.\n");
+                       return -EIO;
+               case COMM_FW_UPDATE_SUCCESS:
+                       v4l2_warn(sd, "Updating F-ROM firmware finished.\n");
+                       return 0;
+               }
+               ++count;
+               msleep(20);
+       } while (count < 500);
+
+       v4l2_warn(sd, "Updating F-ROM firmware timed-out.\n");
+       return -ETIMEDOUT;
+}
+
+static int s5c73m3_spi_boot(struct s5c73m3 *state, bool load_fw)
+{
+       struct v4l2_subdev *sd = &state->sensor_sd;
+       int ret;
+
+       /* Run ARM MCU */
+       ret = s5c73m3_write(state, 0x30000004, 0xffff);
+       if (ret < 0)
+               return ret;
+
+       usleep_range(400, 500);
+
+       /* Check booting status */
+       ret = s5c73m3_system_status_wait(state, 0x0c, 100, 3);
+       if (ret < 0) {
+               v4l2_err(sd, "booting failed: %d\n", ret);
+               return ret;
+       }
+
+       /* P,M,S and Boot Mode */
+       ret = s5c73m3_write(state, 0x30100014, 0x2146);
+       if (ret < 0)
+               return ret;
+
+       ret = s5c73m3_write(state, 0x30100010, 0x210c);
+       if (ret < 0)
+               return ret;
+
+       usleep_range(200, 250);
+
+       /* Check SPI status */
+       ret = s5c73m3_system_status_wait(state, 0x210d, 100, 300);
+       if (ret < 0)
+               v4l2_err(sd, "SPI not ready: %d\n", ret);
+
+       /* Firmware download over SPI */
+       if (load_fw)
+               s5c73m3_load_fw(sd);
+
+       /* MCU reset */
+       ret = s5c73m3_write(state, 0x30000004, 0xfffd);
+       if (ret < 0)
+               return ret;
+
+       /* Remap */
+       ret = s5c73m3_write(state, 0x301000a4, 0x0183);
+       if (ret < 0)
+               return ret;
+
+       /* MCU restart */
+       ret = s5c73m3_write(state, 0x30000004, 0xffff);
+       if (ret < 0 || !load_fw)
+               return ret;
+
+       ret = s5c73m3_read_fw_version(state);
+       if (ret < 0)
+               return ret;
+
+       if (load_fw && update_fw) {
+               ret = s5c73m3_fw_update_from(state);
+               update_fw = 0;
+       }
+
+       return ret;
+}
+
+static int s5c73m3_set_timing_register_for_vdd(struct s5c73m3 *state)
+{
+       static const u32 regs[][2] = {
+               { 0x30100018, 0x0618 },
+               { 0x3010001c, 0x10c1 },
+               { 0x30100020, 0x249e }
+       };
+       int ret;
+       int i;
+
+       for (i = 0; i < ARRAY_SIZE(regs); i++) {
+               ret = s5c73m3_write(state, regs[i][0], regs[i][1]);
+               if (ret < 0)
+                       return ret;
+       }
+
+       return 0;
+}
+
+static void s5c73m3_set_fw_file_version(struct s5c73m3 *state)
+{
+       switch (state->sensor_fw[0]) {
+       case 'G':
+       case 'O':
+               state->fw_file_version[0] = 'G';
+               break;
+       case 'S':
+       case 'Z':
+               state->fw_file_version[0] = 'Z';
+               break;
+       }
+
+       switch (state->sensor_fw[1]) {
+       case 'C'...'F':
+               state->fw_file_version[1] = state->sensor_fw[1];
+               break;
+       }
+}
+
+static int s5c73m3_get_fw_version(struct s5c73m3 *state)
+{
+       struct v4l2_subdev *sd = &state->sensor_sd;
+       int ret;
+
+       /* Run ARM MCU */
+       ret = s5c73m3_write(state, 0x30000004, 0xffff);
+       if (ret < 0)
+               return ret;
+       usleep_range(400, 500);
+
+       /* Check booting status */
+       ret = s5c73m3_system_status_wait(state, 0x0c, 100, 3);
+       if (ret < 0) {
+
+               v4l2_err(sd, "%s: booting failed: %d\n", __func__, ret);
+               return ret;
+       }
+
+       /* Change I/O Driver Current in order to read from F-ROM */
+       ret = s5c73m3_write(state, 0x30100120, 0x0820);
+       ret = s5c73m3_write(state, 0x30100124, 0x0820);
+
+       /* Offset Setting */
+       ret = s5c73m3_write(state, 0x00010418, 0x0008);
+
+       /* P,M,S and Boot Mode */
+       ret = s5c73m3_write(state, 0x30100014, 0x2146);
+       if (ret < 0)
+               return ret;
+       ret = s5c73m3_write(state, 0x30100010, 0x230c);
+       if (ret < 0)
+               return ret;
+
+       usleep_range(200, 250);
+
+       /* Check SPI status */
+       ret = s5c73m3_system_status_wait(state, 0x230e, 100, 300);
+       if (ret < 0)
+               v4l2_err(sd, "SPI not ready: %d\n", ret);
+
+       /* ARM reset */
+       ret = s5c73m3_write(state, 0x30000004, 0xfffd);
+       if (ret < 0)
+               return ret;
+
+       /* Remap */
+       ret = s5c73m3_write(state, 0x301000a4, 0x0183);
+       if (ret < 0)
+               return ret;
+
+       s5c73m3_set_timing_register_for_vdd(state);
+
+       ret = s5c73m3_read_fw_version(state);
+
+       s5c73m3_set_fw_file_version(state);
+
+       return ret;
+}
+
+static int s5c73m3_rom_boot(struct s5c73m3 *state, bool load_fw)
+{
+       static const u32 boot_regs[][2] = {
+               { 0x3100010c, 0x0044 },
+               { 0x31000108, 0x000d },
+               { 0x31000304, 0x0001 },
+               { 0x00010000, 0x5800 },
+               { 0x00010002, 0x0002 },
+               { 0x31000000, 0x0001 },
+               { 0x30100014, 0x1b85 },
+               { 0x30100010, 0x230c }
+       };
+       struct v4l2_subdev *sd = &state->sensor_sd;
+       int i, ret;
+
+       /* Run ARM MCU */
+       ret = s5c73m3_write(state, 0x30000004, 0xffff);
+       if (ret < 0)
+               return ret;
+       usleep_range(400, 450);
+
+       /* Check booting status */
+       ret = s5c73m3_system_status_wait(state, 0x0c, 100, 4);
+       if (ret < 0) {
+               v4l2_err(sd, "Booting failed: %d\n", ret);
+               return ret;
+       }
+
+       for (i = 0; i < ARRAY_SIZE(boot_regs); i++) {
+               ret = s5c73m3_write(state, boot_regs[i][0], boot_regs[i][1]);
+               if (ret < 0)
+                       return ret;
+       }
+       msleep(200);
+
+       /* Check the binary read status */
+       ret = s5c73m3_system_status_wait(state, 0x230e, 1000, 150);
+       if (ret < 0) {
+               v4l2_err(sd, "Binary read failed: %d\n", ret);
+               return ret;
+       }
+
+       /* ARM reset */
+       ret = s5c73m3_write(state, 0x30000004, 0xfffd);
+       if (ret < 0)
+               return ret;
+       /* Remap */
+       ret = s5c73m3_write(state, 0x301000a4, 0x0183);
+       if (ret < 0)
+               return ret;
+       /* MCU re-start */
+       ret = s5c73m3_write(state, 0x30000004, 0xffff);
+       if (ret < 0)
+               return ret;
+
+       state->isp_ready = 1;
+
+       return s5c73m3_read_fw_version(state);
+}
+
+static int s5c73m3_isp_init(struct s5c73m3 *state)
+{
+       int ret;
+
+       state->i2c_read_address = 0;
+       state->i2c_write_address = 0;
+
+       ret = s5c73m3_i2c_write(state->i2c_client, AHB_MSB_ADDR_PTR, 0x3310);
+       if (ret < 0)
+               return ret;
+
+       if (boot_from_rom)
+               return s5c73m3_rom_boot(state, true);
+       else
+               return s5c73m3_spi_boot(state, true);
+}
+
+static const struct s5c73m3_frame_size *s5c73m3_find_frame_size(
+                                       struct v4l2_mbus_framefmt *fmt,
+                                       enum s5c73m3_resolution_types idx)
+{
+       const struct s5c73m3_frame_size *fs;
+       const struct s5c73m3_frame_size *best_fs;
+       int best_dist = INT_MAX;
+       int i;
+
+       fs = s5c73m3_resolutions[idx];
+       best_fs = NULL;
+       for (i = 0; i < s5c73m3_resolutions_len[idx]; ++i) {
+               int dist = abs(fs->width - fmt->width) +
+                                               abs(fs->height - fmt->height);
+               if (dist < best_dist) {
+                       best_dist = dist;
+                       best_fs = fs;
+               }
+               ++fs;
+       }
+
+       return best_fs;
+}
+
+static void s5c73m3_oif_try_format(struct s5c73m3 *state,
+                                  struct v4l2_subdev_fh *fh,
+                                  struct v4l2_subdev_format *fmt,
+                                  const struct s5c73m3_frame_size **fs)
+{
+       u32 code;
+
+       switch (fmt->pad) {
+       case OIF_ISP_PAD:
+               *fs = s5c73m3_find_frame_size(&fmt->format, RES_ISP);
+               code = S5C73M3_ISP_FMT;
+               break;
+       case OIF_JPEG_PAD:
+               *fs = s5c73m3_find_frame_size(&fmt->format, RES_JPEG);
+               code = S5C73M3_JPEG_FMT;
+               break;
+       case OIF_SOURCE_PAD:
+       default:
+               if (fmt->format.code == S5C73M3_JPEG_FMT)
+                       code = S5C73M3_JPEG_FMT;
+               else
+                       code = S5C73M3_ISP_FMT;
+
+               if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE)
+                       *fs = state->oif_pix_size[RES_ISP];
+               else
+                       *fs = s5c73m3_find_frame_size(
+                                               v4l2_subdev_get_try_format(fh,
+                                                       OIF_ISP_PAD),
+                                               RES_ISP);
+               break;
+       }
+
+       s5c73m3_fill_mbus_fmt(&fmt->format, *fs, code);
+}
+
+static void s5c73m3_try_format(struct s5c73m3 *state,
+                             struct v4l2_subdev_fh *fh,
+                             struct v4l2_subdev_format *fmt,
+                             const struct s5c73m3_frame_size **fs)
+{
+       u32 code;
+
+       if (fmt->pad == S5C73M3_ISP_PAD) {
+               *fs = s5c73m3_find_frame_size(&fmt->format, RES_ISP);
+               code = S5C73M3_ISP_FMT;
+       } else {
+               *fs = s5c73m3_find_frame_size(&fmt->format, RES_JPEG);
+               code = S5C73M3_JPEG_FMT;
+       }
+
+       s5c73m3_fill_mbus_fmt(&fmt->format, *fs, code);
+}
+
+static int s5c73m3_oif_g_frame_interval(struct v4l2_subdev *sd,
+                                  struct v4l2_subdev_frame_interval *fi)
+{
+       struct s5c73m3 *state = oif_sd_to_s5c73m3(sd);
+
+       if (fi->pad != OIF_SOURCE_PAD)
+               return -EINVAL;
+
+       mutex_lock(&state->lock);
+       fi->interval = state->fiv->interval;
+       mutex_unlock(&state->lock);
+
+       return 0;
+}
+
+static int __s5c73m3_set_frame_interval(struct s5c73m3 *state,
+                                       struct v4l2_subdev_frame_interval *fi)
+{
+       const struct s5c73m3_frame_size *prev_size =
+                                               state->sensor_pix_size[RES_ISP];
+       const struct s5c73m3_interval *fiv = &s5c73m3_intervals[0];
+       unsigned int ret, min_err = UINT_MAX;
+       unsigned int i, fr_time;
+
+       if (fi->interval.denominator == 0)
+               return -EINVAL;
+
+       fr_time = fi->interval.numerator * 1000 / fi->interval.denominator;
+
+       for (i = 0; i < ARRAY_SIZE(s5c73m3_intervals); i++) {
+               const struct s5c73m3_interval *iv = &s5c73m3_intervals[i];
+
+               if (prev_size->width > iv->size.width ||
+                   prev_size->height > iv->size.height)
+                       continue;
+
+               ret = abs(iv->interval.numerator / 1000 - fr_time);
+               if (ret < min_err) {
+                       fiv = iv;
+                       min_err = ret;
+               }
+       }
+       state->fiv = fiv;
+
+       v4l2_dbg(1, s5c73m3_dbg, &state->sensor_sd,
+                "Changed frame interval to %u us\n", fiv->interval.numerator);
+       return 0;
+}
+
+static int s5c73m3_oif_s_frame_interval(struct v4l2_subdev *sd,
+                                  struct v4l2_subdev_frame_interval *fi)
+{
+       struct s5c73m3 *state = oif_sd_to_s5c73m3(sd);
+       int ret;
+
+       if (fi->pad != OIF_SOURCE_PAD)
+               return -EINVAL;
+
+       v4l2_dbg(1, s5c73m3_dbg, sd, "Setting %d/%d frame interval\n",
+                fi->interval.numerator, fi->interval.denominator);
+
+       mutex_lock(&state->lock);
+
+       ret = __s5c73m3_set_frame_interval(state, fi);
+       if (!ret) {
+               if (state->streaming)
+                       ret = s5c73m3_set_frame_rate(state);
+               else
+                       state->apply_fiv = 1;
+       }
+       mutex_unlock(&state->lock);
+       return ret;
+}
+
+static int s5c73m3_oif_enum_frame_interval(struct v4l2_subdev *sd,
+                             struct v4l2_subdev_fh *fh,
+                             struct v4l2_subdev_frame_interval_enum *fie)
+{
+       struct s5c73m3 *state = oif_sd_to_s5c73m3(sd);
+       const struct s5c73m3_interval *fi;
+       int ret = 0;
+
+       if (fie->pad != OIF_SOURCE_PAD)
+               return -EINVAL;
+       if (fie->index > ARRAY_SIZE(s5c73m3_intervals))
+               return -EINVAL;
+
+       mutex_lock(&state->lock);
+       fi = &s5c73m3_intervals[fie->index];
+       if (fie->width > fi->size.width || fie->height > fi->size.height)
+               ret = -EINVAL;
+       else
+               fie->interval = fi->interval;
+       mutex_unlock(&state->lock);
+
+       return ret;
+}
+
+static int s5c73m3_oif_get_pad_code(int pad, int index)
+{
+       if (pad == OIF_SOURCE_PAD) {
+               if (index > 1)
+                       return -EINVAL;
+               return (index == 0) ? S5C73M3_ISP_FMT : S5C73M3_JPEG_FMT;
+       }
+
+       if (index > 0)
+               return -EINVAL;
+
+       return (pad == OIF_ISP_PAD) ? S5C73M3_ISP_FMT : S5C73M3_JPEG_FMT;
+}
+
+static int s5c73m3_get_fmt(struct v4l2_subdev *sd,
+                          struct v4l2_subdev_fh *fh,
+                          struct v4l2_subdev_format *fmt)
+{
+       struct s5c73m3 *state = sensor_sd_to_s5c73m3(sd);
+       const struct s5c73m3_frame_size *fs;
+       u32 code;
+
+       if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
+               fmt->format = *v4l2_subdev_get_try_format(fh, fmt->pad);
+               return 0;
+       }
+
+       mutex_lock(&state->lock);
+
+       switch (fmt->pad) {
+       case S5C73M3_ISP_PAD:
+               code = S5C73M3_ISP_FMT;
+               fs = state->sensor_pix_size[RES_ISP];
+               break;
+       case S5C73M3_JPEG_PAD:
+               code = S5C73M3_JPEG_FMT;
+               fs = state->sensor_pix_size[RES_JPEG];
+               break;
+       default:
+               mutex_unlock(&state->lock);
+               return -EINVAL;
+       }
+       s5c73m3_fill_mbus_fmt(&fmt->format, fs, code);
+
+       mutex_unlock(&state->lock);
+       return 0;
+}
+
+static int s5c73m3_oif_get_fmt(struct v4l2_subdev *sd,
+                          struct v4l2_subdev_fh *fh,
+                          struct v4l2_subdev_format *fmt)
+{
+       struct s5c73m3 *state = oif_sd_to_s5c73m3(sd);
+       const struct s5c73m3_frame_size *fs;
+       u32 code;
+
+       if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
+               fmt->format = *v4l2_subdev_get_try_format(fh, fmt->pad);
+               return 0;
+       }
+
+       mutex_lock(&state->lock);
+
+       switch (fmt->pad) {
+       case OIF_ISP_PAD:
+               code = S5C73M3_ISP_FMT;
+               fs = state->oif_pix_size[RES_ISP];
+               break;
+       case OIF_JPEG_PAD:
+               code = S5C73M3_JPEG_FMT;
+               fs = state->oif_pix_size[RES_JPEG];
+               break;
+       case OIF_SOURCE_PAD:
+               code = state->mbus_code;
+               fs = state->oif_pix_size[RES_ISP];
+               break;
+       default:
+               mutex_unlock(&state->lock);
+               return -EINVAL;
+       }
+       s5c73m3_fill_mbus_fmt(&fmt->format, fs, code);
+
+       mutex_unlock(&state->lock);
+       return 0;
+}
+
+static int s5c73m3_set_fmt(struct v4l2_subdev *sd,
+                          struct v4l2_subdev_fh *fh,
+                          struct v4l2_subdev_format *fmt)
+{
+       const struct s5c73m3_frame_size *frame_size = NULL;
+       struct s5c73m3 *state = sensor_sd_to_s5c73m3(sd);
+       struct v4l2_mbus_framefmt *mf;
+       int ret = 0;
+
+       mutex_lock(&state->lock);
+
+       s5c73m3_try_format(state, fh, fmt, &frame_size);
+
+       if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
+               mf = v4l2_subdev_get_try_format(fh, fmt->pad);
+               *mf = fmt->format;
+       } else {
+               switch (fmt->pad) {
+               case S5C73M3_ISP_PAD:
+                       state->sensor_pix_size[RES_ISP] = frame_size;
+                       break;
+               case S5C73M3_JPEG_PAD:
+                       state->sensor_pix_size[RES_JPEG] = frame_size;
+                       break;
+               default:
+                       ret = -EBUSY;
+               }
+
+               if (state->streaming)
+                       ret = -EBUSY;
+               else
+                       state->apply_fmt = 1;
+       }
+
+       mutex_unlock(&state->lock);
+
+       return ret;
+}
+
+static int s5c73m3_oif_set_fmt(struct v4l2_subdev *sd,
+                        struct v4l2_subdev_fh *fh,
+                        struct v4l2_subdev_format *fmt)
+{
+       const struct s5c73m3_frame_size *frame_size = NULL;
+       struct s5c73m3 *state = oif_sd_to_s5c73m3(sd);
+       struct v4l2_mbus_framefmt *mf;
+       int ret = 0;
+
+       mutex_lock(&state->lock);
+
+       s5c73m3_oif_try_format(state, fh, fmt, &frame_size);
+
+       if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
+               mf = v4l2_subdev_get_try_format(fh, fmt->pad);
+               *mf = fmt->format;
+       } else {
+               switch (fmt->pad) {
+               case OIF_ISP_PAD:
+                       state->oif_pix_size[RES_ISP] = frame_size;
+                       break;
+               case OIF_JPEG_PAD:
+                       state->oif_pix_size[RES_JPEG] = frame_size;
+                       break;
+               case OIF_SOURCE_PAD:
+                       state->mbus_code = fmt->format.code;
+                       break;
+               default:
+                       ret = -EBUSY;
+               }
+
+               if (state->streaming)
+                       ret = -EBUSY;
+               else
+                       state->apply_fmt = 1;
+       }
+
+       mutex_unlock(&state->lock);
+
+       return ret;
+}
+
+static int s5c73m3_oif_get_frame_desc(struct v4l2_subdev *sd, unsigned int pad,
+                                 struct v4l2_mbus_frame_desc *fd)
+{
+       struct s5c73m3 *state = oif_sd_to_s5c73m3(sd);
+       int i;
+
+       if (pad != OIF_SOURCE_PAD || fd == NULL)
+               return -EINVAL;
+
+       mutex_lock(&state->lock);
+       fd->num_entries = 2;
+       for (i = 0; i < fd->num_entries; i++)
+               fd->entry[i] = state->frame_desc.entry[i];
+       mutex_unlock(&state->lock);
+
+       return 0;
+}
+
+static int s5c73m3_oif_set_frame_desc(struct v4l2_subdev *sd, unsigned int pad,
+                                     struct v4l2_mbus_frame_desc *fd)
+{
+       struct s5c73m3 *state = oif_sd_to_s5c73m3(sd);
+       struct v4l2_mbus_frame_desc *frame_desc = &state->frame_desc;
+       int i;
+
+       if (pad != OIF_SOURCE_PAD || fd == NULL)
+               return -EINVAL;
+
+       fd->entry[0].length = 10 * SZ_1M;
+       fd->entry[1].length = max_t(u32, fd->entry[1].length,
+                                   S5C73M3_EMBEDDED_DATA_MAXLEN);
+       fd->num_entries = 2;
+
+       mutex_lock(&state->lock);
+       for (i = 0; i < fd->num_entries; i++)
+               frame_desc->entry[i] = fd->entry[i];
+       mutex_unlock(&state->lock);
+
+       return 0;
+}
+
+static int s5c73m3_enum_mbus_code(struct v4l2_subdev *sd,
+                                 struct v4l2_subdev_fh *fh,
+                                 struct v4l2_subdev_mbus_code_enum *code)
+{
+       static const int codes[] = {
+                       [S5C73M3_ISP_PAD] = S5C73M3_ISP_FMT,
+                       [S5C73M3_JPEG_PAD] = S5C73M3_JPEG_FMT};
+
+       if (code->index > 0 || code->pad >= S5C73M3_NUM_PADS)
+               return -EINVAL;
+
+       code->code = codes[code->pad];
+
+       return 0;
+}
+
+static int s5c73m3_oif_enum_mbus_code(struct v4l2_subdev *sd,
+                               struct v4l2_subdev_fh *fh,
+                               struct v4l2_subdev_mbus_code_enum *code)
+{
+       int ret;
+
+       ret = s5c73m3_oif_get_pad_code(code->pad, code->index);
+       if (ret < 0)
+               return ret;
+
+       code->code = ret;
+
+       return 0;
+}
+
+static int s5c73m3_enum_frame_size(struct v4l2_subdev *sd,
+                                  struct v4l2_subdev_fh *fh,
+                                  struct v4l2_subdev_frame_size_enum *fse)
+{
+       int idx;
+
+       if (fse->pad == S5C73M3_ISP_PAD) {
+               if (fse->code != S5C73M3_ISP_FMT)
+                       return -EINVAL;
+               idx = RES_ISP;
+       } else{
+               if (fse->code != S5C73M3_JPEG_FMT)
+                       return -EINVAL;
+               idx = RES_JPEG;
+       }
+
+       if (fse->index >= s5c73m3_resolutions_len[idx])
+               return -EINVAL;
+
+       fse->min_width  = s5c73m3_resolutions[idx][fse->index].width;
+       fse->max_width  = fse->min_width;
+       fse->max_height = s5c73m3_resolutions[idx][fse->index].height;
+       fse->min_height = fse->max_height;
+
+       return 0;
+}
+
+static int s5c73m3_oif_enum_frame_size(struct v4l2_subdev *sd,
+                                  struct v4l2_subdev_fh *fh,
+                                  struct v4l2_subdev_frame_size_enum *fse)
+{
+       int idx;
+
+       if (fse->pad == OIF_SOURCE_PAD) {
+               if (fse->index > 0)
+                       return -EINVAL;
+
+               switch (fse->code) {
+               case S5C73M3_JPEG_FMT:
+               case S5C73M3_ISP_FMT: {
+                       struct v4l2_mbus_framefmt *mf =
+                               v4l2_subdev_get_try_format(fh, OIF_ISP_PAD);
+
+                       fse->max_width = fse->min_width = mf->width;
+                       fse->max_height = fse->min_height = mf->height;
+                       return 0;
+               }
+               default:
+                       return -EINVAL;
+               }
+       }
+
+       if (fse->code != s5c73m3_oif_get_pad_code(fse->pad, 0))
+               return -EINVAL;
+
+       if (fse->pad == OIF_JPEG_PAD)
+               idx = RES_JPEG;
+       else
+               idx = RES_ISP;
+
+       if (fse->index >= s5c73m3_resolutions_len[idx])
+               return -EINVAL;
+
+       fse->min_width  = s5c73m3_resolutions[idx][fse->index].width;
+       fse->max_width  = fse->min_width;
+       fse->max_height = s5c73m3_resolutions[idx][fse->index].height;
+       fse->min_height = fse->max_height;
+
+       return 0;
+}
+
+static int s5c73m3_oif_log_status(struct v4l2_subdev *sd)
+{
+       struct s5c73m3 *state = oif_sd_to_s5c73m3(sd);
+
+       v4l2_ctrl_handler_log_status(sd->ctrl_handler, sd->name);
+
+       v4l2_info(sd, "power: %d, apply_fmt: %d\n", state->power,
+                                                       state->apply_fmt);
+
+       return 0;
+}
+
+static int s5c73m3_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
+{
+       struct v4l2_mbus_framefmt *mf;
+
+       mf = v4l2_subdev_get_try_format(fh, S5C73M3_ISP_PAD);
+       s5c73m3_fill_mbus_fmt(mf, &s5c73m3_isp_resolutions[1],
+                                               S5C73M3_ISP_FMT);
+
+       mf = v4l2_subdev_get_try_format(fh, S5C73M3_JPEG_PAD);
+       s5c73m3_fill_mbus_fmt(mf, &s5c73m3_jpeg_resolutions[1],
+                                       S5C73M3_JPEG_FMT);
+
+       return 0;
+}
+
+static int s5c73m3_oif_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
+{
+       struct v4l2_mbus_framefmt *mf;
+
+       mf = v4l2_subdev_get_try_format(fh, OIF_ISP_PAD);
+       s5c73m3_fill_mbus_fmt(mf, &s5c73m3_isp_resolutions[1],
+                                               S5C73M3_ISP_FMT);
+
+       mf = v4l2_subdev_get_try_format(fh, OIF_JPEG_PAD);
+       s5c73m3_fill_mbus_fmt(mf, &s5c73m3_jpeg_resolutions[1],
+                                       S5C73M3_JPEG_FMT);
+
+       mf = v4l2_subdev_get_try_format(fh, OIF_SOURCE_PAD);
+       s5c73m3_fill_mbus_fmt(mf, &s5c73m3_isp_resolutions[1],
+                                               S5C73M3_ISP_FMT);
+       return 0;
+}
+
+static int s5c73m3_gpio_set_value(struct s5c73m3 *priv, int id, u32 val)
+{
+       if (!gpio_is_valid(priv->gpio[id].gpio))
+               return 0;
+       gpio_set_value(priv->gpio[id].gpio, !!val);
+       return 1;
+}
+
+static int s5c73m3_gpio_assert(struct s5c73m3 *priv, int id)
+{
+       return s5c73m3_gpio_set_value(priv, id, priv->gpio[id].level);
+}
+
+static int s5c73m3_gpio_deassert(struct s5c73m3 *priv, int id)
+{
+       return s5c73m3_gpio_set_value(priv, id, !priv->gpio[id].level);
+}
+
+static int __s5c73m3_power_on(struct s5c73m3 *state)
+{
+       int i, ret;
+
+       for (i = 0; i < S5C73M3_MAX_SUPPLIES; i++) {
+               ret = regulator_enable(state->supplies[i].consumer);
+               if (ret)
+                       goto err;
+       }
+
+       s5c73m3_gpio_deassert(state, STBY);
+       usleep_range(100, 200);
+
+       s5c73m3_gpio_deassert(state, RST);
+       usleep_range(50, 100);
+
+       return 0;
+err:
+       for (--i; i >= 0; i--)
+               regulator_disable(state->supplies[i].consumer);
+       return ret;
+}
+
+static int __s5c73m3_power_off(struct s5c73m3 *state)
+{
+       int i, ret;
+
+       if (s5c73m3_gpio_assert(state, RST))
+               usleep_range(10, 50);
+
+       if (s5c73m3_gpio_assert(state, STBY))
+               usleep_range(100, 200);
+       state->streaming = 0;
+       state->isp_ready = 0;
+
+       for (i = S5C73M3_MAX_SUPPLIES - 1; i >= 0; i--) {
+               ret = regulator_disable(state->supplies[i].consumer);
+               if (ret)
+                       goto err;
+       }
+       return 0;
+err:
+       for (++i; i < S5C73M3_MAX_SUPPLIES; i++)
+               regulator_enable(state->supplies[i].consumer);
+
+       return ret;
+}
+
+static int s5c73m3_oif_set_power(struct v4l2_subdev *sd, int on)
+{
+       struct s5c73m3 *state = oif_sd_to_s5c73m3(sd);
+       int ret = 0;
+
+       mutex_lock(&state->lock);
+
+       if (on && !state->power) {
+               ret = __s5c73m3_power_on(state);
+               if (!ret)
+                       ret = s5c73m3_isp_init(state);
+               if (!ret) {
+                       state->apply_fiv = 1;
+                       state->apply_fmt = 1;
+               }
+       } else if (!on == state->power) {
+               ret = s5c73m3_set_af_softlanding(state);
+               if (!ret)
+                       ret = __s5c73m3_power_off(state);
+               else
+                       v4l2_err(sd, "Soft landing lens failed\n");
+       }
+       if (!ret)
+               state->power += on ? 1 : -1;
+
+       v4l2_dbg(1, s5c73m3_dbg, sd, "%s: power: %d\n",
+                __func__, state->power);
+
+       mutex_unlock(&state->lock);
+       return ret;
+}
+
+static int s5c73m3_oif_registered(struct v4l2_subdev *sd)
+{
+       struct s5c73m3 *state = oif_sd_to_s5c73m3(sd);
+       int ret;
+
+       ret = v4l2_device_register_subdev(sd->v4l2_dev, &state->sensor_sd);
+       if (ret) {
+               v4l2_err(sd->v4l2_dev, "Failed to register %s\n",
+                                                       state->oif_sd.name);
+               return ret;
+       }
+
+       ret = media_entity_create_link(&state->sensor_sd.entity,
+                       S5C73M3_ISP_PAD, &state->oif_sd.entity, OIF_ISP_PAD,
+                       MEDIA_LNK_FL_IMMUTABLE | MEDIA_LNK_FL_ENABLED);
+
+       ret = media_entity_create_link(&state->sensor_sd.entity,
+                       S5C73M3_JPEG_PAD, &state->oif_sd.entity, OIF_JPEG_PAD,
+                       MEDIA_LNK_FL_IMMUTABLE | MEDIA_LNK_FL_ENABLED);
+
+       mutex_lock(&state->lock);
+       ret = __s5c73m3_power_on(state);
+       if (ret == 0)
+               s5c73m3_get_fw_version(state);
+
+       __s5c73m3_power_off(state);
+       mutex_unlock(&state->lock);
+
+       v4l2_dbg(1, s5c73m3_dbg, sd, "%s: Booting %s (%d)\n",
+                __func__, ret ? "failed" : "succeded", ret);
+
+       return ret;
+}
+
+static const struct v4l2_subdev_internal_ops s5c73m3_internal_ops = {
+       .open           = s5c73m3_open,
+};
+
+static const struct v4l2_subdev_pad_ops s5c73m3_pad_ops = {
+       .enum_mbus_code         = s5c73m3_enum_mbus_code,
+       .enum_frame_size        = s5c73m3_enum_frame_size,
+       .get_fmt                = s5c73m3_get_fmt,
+       .set_fmt                = s5c73m3_set_fmt,
+};
+
+static const struct v4l2_subdev_ops s5c73m3_subdev_ops = {
+       .pad    = &s5c73m3_pad_ops,
+};
+
+static const struct v4l2_subdev_internal_ops oif_internal_ops = {
+       .registered     = s5c73m3_oif_registered,
+       .open           = s5c73m3_oif_open,
+};
+
+static const struct v4l2_subdev_pad_ops s5c73m3_oif_pad_ops = {
+       .enum_mbus_code         = s5c73m3_oif_enum_mbus_code,
+       .enum_frame_size        = s5c73m3_oif_enum_frame_size,
+       .enum_frame_interval    = s5c73m3_oif_enum_frame_interval,
+       .get_fmt                = s5c73m3_oif_get_fmt,
+       .set_fmt                = s5c73m3_oif_set_fmt,
+       .get_frame_desc         = s5c73m3_oif_get_frame_desc,
+       .set_frame_desc         = s5c73m3_oif_set_frame_desc,
+};
+
+static const struct v4l2_subdev_core_ops s5c73m3_oif_core_ops = {
+       .s_power        = s5c73m3_oif_set_power,
+       .log_status     = s5c73m3_oif_log_status,
+};
+
+static const struct v4l2_subdev_video_ops s5c73m3_oif_video_ops = {
+       .s_stream               = s5c73m3_oif_s_stream,
+       .g_frame_interval       = s5c73m3_oif_g_frame_interval,
+       .s_frame_interval       = s5c73m3_oif_s_frame_interval,
+};
+
+static const struct v4l2_subdev_ops oif_subdev_ops = {
+       .core   = &s5c73m3_oif_core_ops,
+       .pad    = &s5c73m3_oif_pad_ops,
+       .video  = &s5c73m3_oif_video_ops,
+};
+
+static int s5c73m3_configure_gpio(int nr, int val, const char *name)
+{
+       unsigned long flags = val ? GPIOF_OUT_INIT_HIGH : GPIOF_OUT_INIT_LOW;
+       int ret;
+
+       if (!gpio_is_valid(nr))
+               return 0;
+       ret = gpio_request_one(nr, flags, name);
+       if (!ret)
+               gpio_export(nr, 0);
+       return ret;
+}
+
+static int s5c73m3_free_gpios(struct s5c73m3 *state)
+{
+       int i;
+
+       for (i = 0; i < ARRAY_SIZE(state->gpio); i++) {
+               if (!gpio_is_valid(state->gpio[i].gpio))
+                       continue;
+               gpio_free(state->gpio[i].gpio);
+               state->gpio[i].gpio = -EINVAL;
+       }
+       return 0;
+}
+
+static int s5c73m3_configure_gpios(struct s5c73m3 *state,
+                                  const struct s5c73m3_platform_data *pdata)
+{
+       const struct s5c73m3_gpio *gpio = &pdata->gpio_stby;
+       int ret;
+
+       state->gpio[STBY].gpio = -EINVAL;
+       state->gpio[RST].gpio  = -EINVAL;
+
+       ret = s5c73m3_configure_gpio(gpio->gpio, gpio->level, "S5C73M3_STBY");
+       if (ret) {
+               s5c73m3_free_gpios(state);
+               return ret;
+       }
+       state->gpio[STBY] = *gpio;
+       if (gpio_is_valid(gpio->gpio))
+               gpio_set_value(gpio->gpio, 0);
+
+       gpio = &pdata->gpio_reset;
+       ret = s5c73m3_configure_gpio(gpio->gpio, gpio->level, "S5C73M3_RST");
+       if (ret) {
+               s5c73m3_free_gpios(state);
+               return ret;
+       }
+       state->gpio[RST] = *gpio;
+       if (gpio_is_valid(gpio->gpio))
+               gpio_set_value(gpio->gpio, 0);
+
+       return 0;
+}
+
+static int __devinit s5c73m3_probe(struct i2c_client *client,
+                                  const struct i2c_device_id *id)
+{
+       struct device *dev = &client->dev;
+       const struct s5c73m3_platform_data *pdata = client->dev.platform_data;
+       struct v4l2_subdev *sd;
+       struct v4l2_subdev *oif_sd;
+       struct s5c73m3 *state;
+       int ret, i;
+
+       if (pdata == NULL) {
+               dev_err(&client->dev, "Platform data not specified\n");
+               return -EINVAL;
+       }
+
+       state = devm_kzalloc(dev, sizeof(*state), GFP_KERNEL);
+       if (!state)
+               return -ENOMEM;
+
+       mutex_init(&state->lock);
+       sd = &state->sensor_sd;
+       oif_sd = &state->oif_sd;
+
+       v4l2_subdev_init(sd, &s5c73m3_subdev_ops);
+       sd->owner = client->driver->driver.owner;
+       v4l2_set_subdevdata(sd, state);
+       strlcpy(sd->name, "S5C73M3", sizeof(sd->name));
+
+       sd->internal_ops = &s5c73m3_internal_ops;
+       sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+
+       state->sensor_pads[S5C73M3_JPEG_PAD].flags = MEDIA_PAD_FL_SOURCE;
+       state->sensor_pads[S5C73M3_ISP_PAD].flags = MEDIA_PAD_FL_SOURCE;
+       sd->entity.type = MEDIA_ENT_T_V4L2_SUBDEV;
+
+       ret = media_entity_init(&sd->entity, S5C73M3_NUM_PADS,
+                                                       state->sensor_pads, 0);
+       if (ret < 0)
+               return ret;
+
+       v4l2_i2c_subdev_init(oif_sd, client, &oif_subdev_ops);
+       strcpy(oif_sd->name, "S5C73M3-OIF");
+
+       oif_sd->internal_ops = &oif_internal_ops;
+       oif_sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+
+       state->oif_pads[OIF_ISP_PAD].flags = MEDIA_PAD_FL_SINK;
+       state->oif_pads[OIF_JPEG_PAD].flags = MEDIA_PAD_FL_SINK;
+       state->oif_pads[OIF_SOURCE_PAD].flags = MEDIA_PAD_FL_SOURCE;
+       oif_sd->entity.type = MEDIA_ENT_T_V4L2_SUBDEV;
+
+       ret = media_entity_init(&oif_sd->entity, OIF_NUM_PADS,
+                                                       state->oif_pads, 0);
+       if (ret < 0)
+               return ret;
+
+       state->mclk_frequency = pdata->mclk_frequency;
+       state->bus_type = pdata->bus_type;
+
+       ret = s5c73m3_configure_gpios(state, pdata);
+       if (ret)
+               goto out_err1;
+
+       for (i = 0; i < S5C73M3_MAX_SUPPLIES; i++)
+               state->supplies[i].supply = s5c73m3_supply_names[i];
+
+       ret = regulator_bulk_get(dev, S5C73M3_MAX_SUPPLIES,
+                              state->supplies);
+       if (ret) {
+               dev_err(dev, "failed to get regulators\n");
+               goto out_err2;
+       }
+
+       ret = s5c73m3_init_controls(state);
+       if (ret)
+               goto out_err3;
+
+       state->sensor_pix_size[RES_ISP] = &s5c73m3_isp_resolutions[1];
+       state->sensor_pix_size[RES_JPEG] = &s5c73m3_jpeg_resolutions[1];
+       state->oif_pix_size[RES_ISP] = state->sensor_pix_size[RES_ISP];
+       state->oif_pix_size[RES_JPEG] = state->sensor_pix_size[RES_JPEG];
+
+       state->mbus_code = S5C73M3_ISP_FMT;
+
+       state->fiv = &s5c73m3_intervals[S5C73M3_DEFAULT_FRAME_INTERVAL];
+
+       state->fw_file_version[0] = 'G';
+       state->fw_file_version[1] = 'C';
+
+       ret = s5c73m3_register_spi_driver(state);
+       if (ret < 0)
+               goto out_err3;
+
+       state->i2c_client = client;
+
+       v4l2_info(sd, "%s: completed succesfully\n", __func__);
+       return 0;
+
+out_err3:
+       regulator_bulk_free(S5C73M3_MAX_SUPPLIES, state->supplies);
+out_err2:
+       s5c73m3_free_gpios(state);
+out_err1:
+       media_entity_cleanup(&sd->entity);
+       return ret;
+}
+
+static int __devexit s5c73m3_remove(struct i2c_client *client)
+{
+       struct v4l2_subdev *sd = i2c_get_clientdata(client);
+       struct s5c73m3 *state = sensor_sd_to_s5c73m3(sd);
+
+       v4l2_device_unregister_subdev(sd);
+
+       v4l2_ctrl_handler_free(sd->ctrl_handler);
+       media_entity_cleanup(&sd->entity);
+
+       s5c73m3_unregister_spi_driver(state);
+       regulator_bulk_free(S5C73M3_MAX_SUPPLIES, state->supplies);
+       s5c73m3_free_gpios(state);
+
+       return 0;
+}
+
+static const struct i2c_device_id s5c73m3_id[] = {
+       { DRIVER_NAME, 0 },
+       { }
+};
+MODULE_DEVICE_TABLE(i2c, s5c73m3_id);
+
+static struct i2c_driver s5c73m3_i2c_driver = {
+       .driver = {
+               .name   = DRIVER_NAME,
+       },
+       .probe          = s5c73m3_probe,
+       .remove         = __devexit_p(s5c73m3_remove),
+       .id_table       = s5c73m3_id,
+};
+
+module_i2c_driver(s5c73m3_i2c_driver);
+
+MODULE_DESCRIPTION("Samsung S5C73M3 camera driver");
+MODULE_AUTHOR("Sylwester Nawrocki <s.nawrocki@samsung.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/media/i2c/s5c73m3/s5c73m3-ctrls.c b/drivers/media/i2c/s5c73m3/s5c73m3-ctrls.c
new file mode 100644 (file)
index 0000000..8001cde
--- /dev/null
@@ -0,0 +1,563 @@
+/*
+ * Samsung LSI S5C73M3 8M pixel camera driver
+ *
+ * Copyright (C) 2012, Samsung Electronics, Co., Ltd.
+ * Sylwester Nawrocki <s.nawrocki@samsung.com>
+ * Andrzej Hajda <a.hajda@samsung.com>
+ *
+ * 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/sizes.h>
+#include <linux/delay.h>
+#include <linux/firmware.h>
+#include <linux/gpio.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/media.h>
+#include <linux/module.h>
+#include <linux/regulator/consumer.h>
+#include <linux/slab.h>
+#include <linux/spi/spi.h>
+#include <linux/videodev2.h>
+#include <media/media-entity.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-subdev.h>
+#include <media/v4l2-mediabus.h>
+#include <media/s5c73m3.h>
+
+#include "s5c73m3.h"
+
+static int s5c73m3_get_af_status(struct s5c73m3 *state, struct v4l2_ctrl *ctrl)
+{
+       u16 reg = REG_AF_STATUS_UNFOCUSED;
+
+       int ret = s5c73m3_read(state, REG_AF_STATUS, &reg);
+
+       switch (reg) {
+       case REG_CAF_STATUS_FIND_SEARCH_DIR:
+       case REG_AF_STATUS_FOCUSING:
+       case REG_CAF_STATUS_FOCUSING:
+               ctrl->val = V4L2_AUTO_FOCUS_STATUS_BUSY;
+               break;
+       case REG_CAF_STATUS_FOCUSED:
+       case REG_AF_STATUS_FOCUSED:
+               ctrl->val = V4L2_AUTO_FOCUS_STATUS_REACHED;
+               break;
+       default:
+               v4l2_info(&state->sensor_sd, "Unknown AF status %#x\n", reg);
+               /* Fall through */
+       case REG_CAF_STATUS_UNFOCUSED:
+       case REG_AF_STATUS_UNFOCUSED:
+       case REG_AF_STATUS_INVALID:
+               ctrl->val = V4L2_AUTO_FOCUS_STATUS_FAILED;
+               break;
+       }
+
+       return ret;
+}
+
+static int s5c73m3_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
+{
+       struct v4l2_subdev *sd = ctrl_to_sensor_sd(ctrl);
+       struct s5c73m3 *state = sensor_sd_to_s5c73m3(sd);
+       int ret;
+
+       if (state->power == 0)
+               return -EBUSY;
+
+       switch (ctrl->id) {
+       case V4L2_CID_FOCUS_AUTO:
+               ret = s5c73m3_get_af_status(state, state->ctrls.af_status);
+               if (ret)
+                       return ret;
+               break;
+       }
+
+       return 0;
+}
+
+static int s5c73m3_set_colorfx(struct s5c73m3 *state, int val)
+{
+       static const unsigned short colorfx[][2] = {
+               { V4L2_COLORFX_NONE,     COMM_IMAGE_EFFECT_NONE },
+               { V4L2_COLORFX_BW,       COMM_IMAGE_EFFECT_MONO },
+               { V4L2_COLORFX_SEPIA,    COMM_IMAGE_EFFECT_SEPIA },
+               { V4L2_COLORFX_NEGATIVE, COMM_IMAGE_EFFECT_NEGATIVE },
+               { V4L2_COLORFX_AQUA,     COMM_IMAGE_EFFECT_AQUA },
+       };
+       int i;
+
+       for (i = 0; i < ARRAY_SIZE(colorfx); i++) {
+               if (colorfx[i][0] != val)
+                       continue;
+
+               v4l2_dbg(1, s5c73m3_dbg, &state->sensor_sd,
+                        "Setting %s color effect\n",
+                        v4l2_ctrl_get_menu(state->ctrls.colorfx->id)[i]);
+
+               return s5c73m3_isp_command(state, COMM_IMAGE_EFFECT,
+                                        colorfx[i][1]);
+       }
+       return -EINVAL;
+}
+
+/* Set exposure metering/exposure bias */
+static int s5c73m3_set_exposure(struct s5c73m3 *state, int auto_exp)
+{
+       struct v4l2_subdev *sd = &state->sensor_sd;
+       struct s5c73m3_ctrls *ctrls = &state->ctrls;
+       int ret = 0;
+
+       if (ctrls->exposure_metering->is_new) {
+               u16 metering;
+
+               switch (ctrls->exposure_metering->val) {
+               case V4L2_EXPOSURE_METERING_CENTER_WEIGHTED:
+                       metering = COMM_METERING_CENTER;
+                       break;
+               case V4L2_EXPOSURE_METERING_SPOT:
+                       metering = COMM_METERING_SPOT;
+                       break;
+               default:
+                       metering = COMM_METERING_AVERAGE;
+                       break;
+               }
+
+               ret = s5c73m3_isp_command(state, COMM_METERING, metering);
+       }
+
+       if (!ret && ctrls->exposure_bias->is_new) {
+               u16 exp_bias = ctrls->exposure_bias->val;
+               ret = s5c73m3_isp_command(state, COMM_EV, exp_bias);
+       }
+
+       v4l2_dbg(1, s5c73m3_dbg, sd,
+                "%s: exposure bias: %#x, metering: %#x (%d)\n",  __func__,
+                ctrls->exposure_bias->val, ctrls->exposure_metering->val, ret);
+
+       return ret;
+}
+
+static int s5c73m3_set_white_balance(struct s5c73m3 *state, int val)
+{
+       static const unsigned short wb[][2] = {
+               { V4L2_WHITE_BALANCE_INCANDESCENT,  COMM_AWB_MODE_INCANDESCENT},
+               { V4L2_WHITE_BALANCE_FLUORESCENT,   COMM_AWB_MODE_FLUORESCENT1},
+               { V4L2_WHITE_BALANCE_FLUORESCENT_H, COMM_AWB_MODE_FLUORESCENT2},
+               { V4L2_WHITE_BALANCE_CLOUDY,        COMM_AWB_MODE_CLOUDY},
+               { V4L2_WHITE_BALANCE_DAYLIGHT,      COMM_AWB_MODE_DAYLIGHT},
+               { V4L2_WHITE_BALANCE_AUTO,          COMM_AWB_MODE_AUTO},
+       };
+       int i;
+
+       for (i = 0; i < ARRAY_SIZE(wb); i++) {
+               if (wb[i][0] != val)
+                       continue;
+
+               v4l2_dbg(1, s5c73m3_dbg, &state->sensor_sd,
+                        "Setting white balance to: %s\n",
+                        v4l2_ctrl_get_menu(state->ctrls.auto_wb->id)[i]);
+
+               return s5c73m3_isp_command(state, COMM_AWB_MODE, wb[i][1]);
+       }
+
+       return -EINVAL;
+}
+
+static int s5c73m3_af_run(struct s5c73m3 *state, bool on)
+{
+       struct s5c73m3_ctrls *c = &state->ctrls;
+
+       if (!on)
+               return s5c73m3_isp_command(state, COMM_AF_CON,
+                                                       COMM_AF_CON_STOP);
+
+       if (c->focus_auto->val)
+               return s5c73m3_isp_command(state, COMM_AF_MODE,
+                                          COMM_AF_MODE_PREVIEW_CAF_START);
+
+       return s5c73m3_isp_command(state, COMM_AF_CON, COMM_AF_CON_START);
+}
+
+static int s5c73m3_3a_lock(struct s5c73m3 *state, struct v4l2_ctrl *ctrl)
+{
+       bool awb_lock = ctrl->val & V4L2_LOCK_WHITE_BALANCE;
+       bool ae_lock = ctrl->val & V4L2_LOCK_EXPOSURE;
+       bool af_lock = ctrl->val & V4L2_LOCK_FOCUS;
+       int ret = 0;
+
+       if ((ctrl->val ^ ctrl->cur.val) & V4L2_LOCK_EXPOSURE) {
+               ret = s5c73m3_isp_command(state, COMM_AE_CON,
+                               ae_lock ? COMM_AE_STOP : COMM_AE_START);
+               if (ret)
+                       return ret;
+       }
+
+       if (((ctrl->val ^ ctrl->cur.val) & V4L2_LOCK_WHITE_BALANCE)
+           && state->ctrls.auto_wb->val) {
+               ret = s5c73m3_isp_command(state, COMM_AWB_CON,
+                       awb_lock ? COMM_AWB_STOP : COMM_AWB_START);
+               if (ret)
+                       return ret;
+       }
+
+       if ((ctrl->val ^ ctrl->cur.val) & V4L2_LOCK_FOCUS)
+               ret = s5c73m3_af_run(state, ~af_lock);
+
+       return ret;
+}
+
+static int s5c73m3_set_auto_focus(struct s5c73m3 *state, int caf)
+{
+       struct s5c73m3_ctrls *c = &state->ctrls;
+       int ret = 1;
+
+       if (c->af_distance->is_new) {
+               u16 mode = (c->af_distance->val == V4L2_AUTO_FOCUS_RANGE_MACRO)
+                               ? COMM_AF_MODE_MACRO : COMM_AF_MODE_NORMAL;
+               ret = s5c73m3_isp_command(state, COMM_AF_MODE, mode);
+               if (ret != 0)
+                       return ret;
+       }
+
+       if (!ret || (c->focus_auto->is_new && c->focus_auto->val) ||
+                                                       c->af_start->is_new)
+               ret = s5c73m3_af_run(state, 1);
+       else if ((c->focus_auto->is_new && !c->focus_auto->val) ||
+                                                       c->af_stop->is_new)
+               ret = s5c73m3_af_run(state, 0);
+       else
+               ret = 0;
+
+       return ret;
+}
+
+static int s5c73m3_set_contrast(struct s5c73m3 *state, int val)
+{
+       u16 reg = (val < 0) ? -val + 2 : val;
+       return s5c73m3_isp_command(state, COMM_CONTRAST, reg);
+}
+
+static int s5c73m3_set_saturation(struct s5c73m3 *state, int val)
+{
+       u16 reg = (val < 0) ? -val + 2 : val;
+       return s5c73m3_isp_command(state, COMM_SATURATION, reg);
+}
+
+static int s5c73m3_set_sharpness(struct s5c73m3 *state, int val)
+{
+       u16 reg = (val < 0) ? -val + 2 : val;
+       return s5c73m3_isp_command(state, COMM_SHARPNESS, reg);
+}
+
+static int s5c73m3_set_iso(struct s5c73m3 *state, int val)
+{
+       u32 iso;
+
+       if (val == V4L2_ISO_SENSITIVITY_MANUAL)
+               iso = state->ctrls.iso->val + 1;
+       else
+               iso = 0;
+
+       return s5c73m3_isp_command(state, COMM_ISO, iso);
+}
+
+static int s5c73m3_set_stabilization(struct s5c73m3 *state, int val)
+{
+       struct v4l2_subdev *sd = &state->sensor_sd;
+
+       v4l2_dbg(1, s5c73m3_dbg, sd, "Image stabilization: %d\n", val);
+
+       return s5c73m3_isp_command(state, COMM_FRAME_RATE, val ?
+                       COMM_FRAME_RATE_ANTI_SHAKE : COMM_FRAME_RATE_AUTO_SET);
+}
+
+static int s5c73m3_set_jpeg_quality(struct s5c73m3 *state, int quality)
+{
+       int reg;
+
+       if (quality <= 65)
+               reg = COMM_IMAGE_QUALITY_NORMAL;
+       else if (quality <= 75)
+               reg = COMM_IMAGE_QUALITY_FINE;
+       else
+               reg = COMM_IMAGE_QUALITY_SUPERFINE;
+
+       return s5c73m3_isp_command(state, COMM_IMAGE_QUALITY, reg);
+}
+
+static int s5c73m3_set_scene_program(struct s5c73m3 *state, int val)
+{
+       static const unsigned short scene_lookup[] = {
+               COMM_SCENE_MODE_NONE,        /* V4L2_SCENE_MODE_NONE */
+               COMM_SCENE_MODE_AGAINST_LIGHT,/* V4L2_SCENE_MODE_BACKLIGHT */
+               COMM_SCENE_MODE_BEACH,       /* V4L2_SCENE_MODE_BEACH_SNOW */
+               COMM_SCENE_MODE_CANDLE,      /* V4L2_SCENE_MODE_CANDLE_LIGHT */
+               COMM_SCENE_MODE_DAWN,        /* V4L2_SCENE_MODE_DAWN_DUSK */
+               COMM_SCENE_MODE_FALL,        /* V4L2_SCENE_MODE_FALL_COLORS */
+               COMM_SCENE_MODE_FIRE,        /* V4L2_SCENE_MODE_FIREWORKS */
+               COMM_SCENE_MODE_LANDSCAPE,    /* V4L2_SCENE_MODE_LANDSCAPE */
+               COMM_SCENE_MODE_NIGHT,       /* V4L2_SCENE_MODE_NIGHT */
+               COMM_SCENE_MODE_INDOOR,      /* V4L2_SCENE_MODE_PARTY_INDOOR */
+               COMM_SCENE_MODE_PORTRAIT,     /* V4L2_SCENE_MODE_PORTRAIT */
+               COMM_SCENE_MODE_SPORTS,      /* V4L2_SCENE_MODE_SPORTS */
+               COMM_SCENE_MODE_SUNSET,      /* V4L2_SCENE_MODE_SUNSET */
+               COMM_SCENE_MODE_TEXT,        /* V4L2_SCENE_MODE_TEXT */
+       };
+
+       v4l2_dbg(1, s5c73m3_dbg, &state->sensor_sd, "Setting %s scene mode\n",
+                v4l2_ctrl_get_menu(state->ctrls.scene_mode->id)[val]);
+
+       return s5c73m3_isp_command(state, COMM_SCENE_MODE, scene_lookup[val]);
+}
+
+static int s5c73m3_set_power_line_freq(struct s5c73m3 *state, int val)
+{
+       unsigned int pwr_line_freq = COMM_FLICKER_NONE;
+
+       switch (val) {
+       case V4L2_CID_POWER_LINE_FREQUENCY_DISABLED:
+               pwr_line_freq = COMM_FLICKER_NONE;
+               break;
+       case V4L2_CID_POWER_LINE_FREQUENCY_50HZ:
+               pwr_line_freq = COMM_FLICKER_AUTO_50HZ;
+               break;
+       case V4L2_CID_POWER_LINE_FREQUENCY_60HZ:
+               pwr_line_freq = COMM_FLICKER_AUTO_60HZ;
+               break;
+       default:
+       case V4L2_CID_POWER_LINE_FREQUENCY_AUTO:
+               pwr_line_freq = COMM_FLICKER_NONE;
+       }
+
+       return s5c73m3_isp_command(state, COMM_FLICKER_MODE, pwr_line_freq);
+}
+
+static int s5c73m3_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+       struct v4l2_subdev *sd = ctrl_to_sensor_sd(ctrl);
+       struct s5c73m3 *state = sensor_sd_to_s5c73m3(sd);
+       int ret = 0;
+
+       v4l2_dbg(1, s5c73m3_dbg, sd, "set_ctrl: %s, value: %d\n",
+                ctrl->name, ctrl->val);
+
+       mutex_lock(&state->lock);
+       /*
+        * If the device is not powered up by the host driver do
+        * not apply any controls to H/W at this time. Instead
+        * the controls will be restored right after power-up.
+        */
+       if (state->power == 0)
+               goto unlock;
+
+       if (ctrl->flags & V4L2_CTRL_FLAG_INACTIVE) {
+               ret = -EINVAL;
+               goto unlock;
+       }
+
+       switch (ctrl->id) {
+       case V4L2_CID_3A_LOCK:
+               ret = s5c73m3_3a_lock(state, ctrl);
+               break;
+
+       case V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE:
+               ret = s5c73m3_set_white_balance(state, ctrl->val);
+               break;
+
+       case V4L2_CID_CONTRAST:
+               ret = s5c73m3_set_contrast(state, ctrl->val);
+               break;
+
+       case V4L2_CID_COLORFX:
+               ret = s5c73m3_set_colorfx(state, ctrl->val);
+               break;
+
+       case V4L2_CID_EXPOSURE_AUTO:
+               ret = s5c73m3_set_exposure(state, ctrl->val);
+               break;
+
+       case V4L2_CID_FOCUS_AUTO:
+               ret = s5c73m3_set_auto_focus(state, ctrl->val);
+               break;
+
+       case V4L2_CID_IMAGE_STABILIZATION:
+               ret = s5c73m3_set_stabilization(state, ctrl->val);
+               break;
+
+       case V4L2_CID_ISO_SENSITIVITY:
+               ret = s5c73m3_set_iso(state, ctrl->val);
+               break;
+
+       case V4L2_CID_JPEG_COMPRESSION_QUALITY:
+               ret = s5c73m3_set_jpeg_quality(state, ctrl->val);
+               break;
+
+       case V4L2_CID_POWER_LINE_FREQUENCY:
+               ret = s5c73m3_set_power_line_freq(state, ctrl->val);
+               break;
+
+       case V4L2_CID_SATURATION:
+               ret = s5c73m3_set_saturation(state, ctrl->val);
+               break;
+
+       case V4L2_CID_SCENE_MODE:
+               ret = s5c73m3_set_scene_program(state, ctrl->val);
+               break;
+
+       case V4L2_CID_SHARPNESS:
+               ret = s5c73m3_set_sharpness(state, ctrl->val);
+               break;
+
+       case V4L2_CID_WIDE_DYNAMIC_RANGE:
+               ret = s5c73m3_isp_command(state, COMM_WDR, !!ctrl->val);
+               break;
+
+       case V4L2_CID_ZOOM_ABSOLUTE:
+               ret = s5c73m3_isp_command(state, COMM_ZOOM_STEP, ctrl->val);
+               break;
+       }
+unlock:
+       mutex_unlock(&state->lock);
+       return ret;
+}
+
+static const struct v4l2_ctrl_ops s5c73m3_ctrl_ops = {
+       .g_volatile_ctrl        = s5c73m3_g_volatile_ctrl,
+       .s_ctrl                 = s5c73m3_s_ctrl,
+};
+
+/* Supported manual ISO values */
+static const s64 iso_qmenu[] = {
+       /* COMM_ISO: 0x0001...0x0004 */
+       100, 200, 400, 800,
+};
+
+/* Supported exposure bias values (-2.0EV...+2.0EV) */
+static const s64 ev_bias_qmenu[] = {
+       /* COMM_EV: 0x0000...0x0008 */
+       -2000, -1500, -1000, -500, 0, 500, 1000, 1500, 2000
+};
+
+int s5c73m3_init_controls(struct s5c73m3 *state)
+{
+       const struct v4l2_ctrl_ops *ops = &s5c73m3_ctrl_ops;
+       struct s5c73m3_ctrls *ctrls = &state->ctrls;
+       struct v4l2_ctrl_handler *hdl = &ctrls->handler;
+
+       int ret = v4l2_ctrl_handler_init(hdl, 22);
+       if (ret)
+               return ret;
+
+       /* White balance */
+       ctrls->auto_wb = v4l2_ctrl_new_std_menu(hdl, ops,
+                       V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE,
+                       9, ~0x15e, V4L2_WHITE_BALANCE_AUTO);
+
+       /* Exposure (only automatic exposure) */
+       ctrls->auto_exposure = v4l2_ctrl_new_std_menu(hdl, ops,
+                       V4L2_CID_EXPOSURE_AUTO, 0, ~0x01, V4L2_EXPOSURE_AUTO);
+
+       ctrls->exposure_bias = v4l2_ctrl_new_int_menu(hdl, ops,
+                       V4L2_CID_AUTO_EXPOSURE_BIAS,
+                       ARRAY_SIZE(ev_bias_qmenu) - 1,
+                       ARRAY_SIZE(ev_bias_qmenu)/2 - 1,
+                       ev_bias_qmenu);
+
+       ctrls->exposure_metering = v4l2_ctrl_new_std_menu(hdl, ops,
+                       V4L2_CID_EXPOSURE_METERING,
+                       2, ~0x7, V4L2_EXPOSURE_METERING_AVERAGE);
+
+       /* Auto focus */
+       ctrls->focus_auto = v4l2_ctrl_new_std(hdl, ops,
+                       V4L2_CID_FOCUS_AUTO, 0, 1, 1, 0);
+
+       ctrls->af_start = v4l2_ctrl_new_std(hdl, ops,
+                       V4L2_CID_AUTO_FOCUS_START, 0, 1, 1, 0);
+
+       ctrls->af_stop = v4l2_ctrl_new_std(hdl, ops,
+                       V4L2_CID_AUTO_FOCUS_STOP, 0, 1, 1, 0);
+
+       ctrls->af_status = v4l2_ctrl_new_std(hdl, ops,
+                       V4L2_CID_AUTO_FOCUS_STATUS, 0,
+                       (V4L2_AUTO_FOCUS_STATUS_BUSY |
+                        V4L2_AUTO_FOCUS_STATUS_REACHED |
+                        V4L2_AUTO_FOCUS_STATUS_FAILED),
+                       0, V4L2_AUTO_FOCUS_STATUS_IDLE);
+
+       ctrls->af_distance = v4l2_ctrl_new_std_menu(hdl, ops,
+                       V4L2_CID_AUTO_FOCUS_RANGE,
+                       V4L2_AUTO_FOCUS_RANGE_MACRO,
+                       ~(1 << V4L2_AUTO_FOCUS_RANGE_NORMAL |
+                         1 << V4L2_AUTO_FOCUS_RANGE_MACRO),
+                       V4L2_AUTO_FOCUS_RANGE_NORMAL);
+       /* ISO sensitivity */
+       ctrls->auto_iso = v4l2_ctrl_new_std_menu(hdl, ops,
+                       V4L2_CID_ISO_SENSITIVITY_AUTO, 1, 0,
+                       V4L2_ISO_SENSITIVITY_AUTO);
+
+       ctrls->iso = v4l2_ctrl_new_int_menu(hdl, ops,
+                       V4L2_CID_ISO_SENSITIVITY, ARRAY_SIZE(iso_qmenu) - 1,
+                       ARRAY_SIZE(iso_qmenu)/2 - 1, iso_qmenu);
+
+       ctrls->contrast = v4l2_ctrl_new_std(hdl, ops,
+                       V4L2_CID_CONTRAST, -2, 2, 1, 0);
+
+       ctrls->saturation = v4l2_ctrl_new_std(hdl, ops,
+                       V4L2_CID_SATURATION, -2, 2, 1, 0);
+
+       ctrls->sharpness = v4l2_ctrl_new_std(hdl, ops,
+                       V4L2_CID_SHARPNESS, -2, 2, 1, 0);
+
+       ctrls->zoom = v4l2_ctrl_new_std(hdl, ops,
+                       V4L2_CID_ZOOM_ABSOLUTE, 0, 30, 1, 0);
+
+       ctrls->colorfx = v4l2_ctrl_new_std_menu(hdl, ops, V4L2_CID_COLORFX,
+                       V4L2_COLORFX_AQUA, ~0x40f, V4L2_COLORFX_NONE);
+
+       ctrls->wdr = v4l2_ctrl_new_std(hdl, ops,
+                       V4L2_CID_WIDE_DYNAMIC_RANGE, 0, 1, 1, 0);
+
+       ctrls->stabilization = v4l2_ctrl_new_std(hdl, ops,
+                       V4L2_CID_IMAGE_STABILIZATION, 0, 1, 1, 0);
+
+       v4l2_ctrl_new_std_menu(hdl, ops, V4L2_CID_POWER_LINE_FREQUENCY,
+                              V4L2_CID_POWER_LINE_FREQUENCY_AUTO, 0,
+                              V4L2_CID_POWER_LINE_FREQUENCY_AUTO);
+
+       ctrls->jpeg_quality = v4l2_ctrl_new_std(hdl, ops,
+                       V4L2_CID_JPEG_COMPRESSION_QUALITY, 1, 100, 1, 80);
+
+       ctrls->scene_mode = v4l2_ctrl_new_std_menu(hdl, ops,
+                       V4L2_CID_SCENE_MODE, V4L2_SCENE_MODE_TEXT, ~0x3fff,
+                       V4L2_SCENE_MODE_NONE);
+
+       ctrls->aaa_lock = v4l2_ctrl_new_std(hdl, ops,
+                       V4L2_CID_3A_LOCK, 0, 0x7, 0, 0);
+
+       if (hdl->error) {
+               ret = hdl->error;
+               v4l2_ctrl_handler_free(hdl);
+               return ret;
+       }
+
+       v4l2_ctrl_auto_cluster(3, &ctrls->auto_exposure, 0, false);
+       ctrls->auto_iso->flags |= V4L2_CTRL_FLAG_VOLATILE |
+                               V4L2_CTRL_FLAG_UPDATE;
+       v4l2_ctrl_auto_cluster(2, &ctrls->auto_iso, 0, false);
+       ctrls->af_status->flags |= V4L2_CTRL_FLAG_VOLATILE;
+       v4l2_ctrl_cluster(6, &ctrls->focus_auto);
+
+       state->sensor_sd.ctrl_handler = hdl;
+
+       return 0;
+}
diff --git a/drivers/media/i2c/s5c73m3/s5c73m3-spi.c b/drivers/media/i2c/s5c73m3/s5c73m3-spi.c
new file mode 100644 (file)
index 0000000..889139c
--- /dev/null
@@ -0,0 +1,156 @@
+/*
+ * Samsung LSI S5C73M3 8M pixel camera driver
+ *
+ * Copyright (C) 2012, Samsung Electronics, Co., Ltd.
+ * Sylwester Nawrocki <s.nawrocki@samsung.com>
+ * Andrzej Hajda <a.hajda@samsung.com>
+ *
+ * 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/sizes.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/media.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/spi/spi.h>
+
+#include "s5c73m3.h"
+
+#define S5C73M3_SPI_DRV_NAME "S5C73M3-SPI"
+
+enum spi_direction {
+       SPI_DIR_RX,
+       SPI_DIR_TX
+};
+
+static int spi_xmit(struct spi_device *spi_dev, void *addr, const int len,
+                                                       enum spi_direction dir)
+{
+       struct spi_message msg;
+       int r;
+       struct spi_transfer xfer = {
+               .len    = len,
+       };
+
+       if (dir == SPI_DIR_TX)
+               xfer.tx_buf = addr;
+       else
+               xfer.rx_buf = addr;
+
+       if (spi_dev == NULL) {
+               dev_err(&spi_dev->dev, "SPI device is uninitialized\n");
+               return -ENODEV;
+       }
+
+       spi_message_init(&msg);
+       spi_message_add_tail(&xfer, &msg);
+
+       r = spi_sync(spi_dev, &msg);
+       if (r < 0)
+               dev_err(&spi_dev->dev, "%s spi_sync failed %d\n", __func__, r);
+
+       return r;
+}
+
+int s5c73m3_spi_write(struct s5c73m3 *state, const void *addr,
+                     const unsigned int len, const unsigned int tx_size)
+{
+       struct spi_device *spi_dev = state->spi_dev;
+       u32 count = len / tx_size;
+       u32 extra = len % tx_size;
+       unsigned int i, j = 0;
+       u8 padding[32];
+       int r = 0;
+
+       memset(padding, 0, sizeof(padding));
+
+       for (i = 0; i < count ; i++) {
+               r = spi_xmit(spi_dev, (void *)addr + j, tx_size, SPI_DIR_TX);
+               if (r < 0)
+                       return r;
+               j += tx_size;
+       }
+
+       if (extra > 0) {
+               r = spi_xmit(spi_dev, (void *)addr + j, extra, SPI_DIR_TX);
+               if (r < 0)
+                       return r;
+       }
+
+       return spi_xmit(spi_dev, padding, sizeof(padding), SPI_DIR_TX);
+}
+
+int s5c73m3_spi_read(struct s5c73m3 *state, void *addr,
+                    const unsigned int len, const unsigned int tx_size)
+{
+       struct spi_device *spi_dev = state->spi_dev;
+       u32 count = len / tx_size;
+       u32 extra = len % tx_size;
+       unsigned int i, j = 0;
+       int r = 0;
+
+       for (i = 0; i < count ; i++) {
+               r = spi_xmit(spi_dev, addr + j, tx_size, SPI_DIR_RX);
+               if (r < 0)
+                       return r;
+               j += tx_size;
+       }
+
+       if (extra > 0)
+               return spi_xmit(spi_dev, addr + j, extra, SPI_DIR_RX);
+
+       return 0;
+}
+
+static int __devinit s5c73m3_spi_probe(struct spi_device *spi)
+{
+       int r;
+       struct s5c73m3 *state = container_of(spi->dev.driver, struct s5c73m3,
+                                            spidrv.driver);
+       spi->bits_per_word = 32;
+
+       r = spi_setup(spi);
+       if (r < 0) {
+               dev_err(&spi->dev, "spi_setup() failed\n");
+               return r;
+       }
+
+       mutex_lock(&state->lock);
+       state->spi_dev = spi;
+       mutex_unlock(&state->lock);
+
+       v4l2_info(&state->sensor_sd, "S5C73M3 SPI probed successfully\n");
+       return 0;
+}
+
+static int __devexit s5c73m3_spi_remove(struct spi_device *spi)
+{
+       return 0;
+}
+
+int s5c73m3_register_spi_driver(struct s5c73m3 *state)
+{
+       struct spi_driver *spidrv = &state->spidrv;
+
+       spidrv->remove = __devexit_p(s5c73m3_spi_remove);
+       spidrv->probe = s5c73m3_spi_probe;
+       spidrv->driver.name = S5C73M3_SPI_DRV_NAME;
+       spidrv->driver.bus = &spi_bus_type;
+       spidrv->driver.owner = THIS_MODULE;
+
+       return spi_register_driver(spidrv);
+}
+
+void s5c73m3_unregister_spi_driver(struct s5c73m3 *state)
+{
+       spi_unregister_driver(&state->spidrv);
+}
diff --git a/drivers/media/i2c/s5c73m3/s5c73m3.h b/drivers/media/i2c/s5c73m3/s5c73m3.h
new file mode 100644 (file)
index 0000000..9d2c086
--- /dev/null
@@ -0,0 +1,459 @@
+/*
+ * Samsung LSI S5C73M3 8M pixel camera driver
+ *
+ * Copyright (C) 2012, Samsung Electronics, Co., Ltd.
+ * Sylwester Nawrocki <s.nawrocki@samsung.com>
+ * Andrzej Hajda <a.hajda@samsung.com>
+ *
+ * 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.
+ */
+#ifndef S5C73M3_H_
+#define S5C73M3_H_
+
+#include <linux/kernel.h>
+#include <linux/regulator/consumer.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-subdev.h>
+#include <media/s5c73m3.h>
+
+#define DRIVER_NAME                    "S5C73M3"
+
+#define S5C73M3_ISP_FMT                        V4L2_MBUS_FMT_VYUY8_2X8
+#define S5C73M3_JPEG_FMT               V4L2_MBUS_FMT_S5C_UYVY_JPEG_1X8
+
+/* Subdevs pad index definitions */
+enum s5c73m3_pads {
+       S5C73M3_ISP_PAD,
+       S5C73M3_JPEG_PAD,
+       S5C73M3_NUM_PADS
+};
+
+enum s5c73m3_oif_pads {
+       OIF_ISP_PAD,
+       OIF_JPEG_PAD,
+       OIF_SOURCE_PAD,
+       OIF_NUM_PADS
+};
+
+#define S5C73M3_SENSOR_FW_LEN          6
+#define S5C73M3_SENSOR_TYPE_LEN                12
+
+#define S5C73M3_REG(_addrh, _addrl) (((_addrh) << 16) | _addrl)
+
+#define AHB_MSB_ADDR_PTR                       0xfcfc
+#define REG_CMDWR_ADDRH                                0x0050
+#define REG_CMDWR_ADDRL                                0x0054
+#define REG_CMDRD_ADDRH                                0x0058
+#define REG_CMDRD_ADDRL                                0x005c
+#define REG_CMDBUF_ADDR                                0x0f14
+
+#define REG_I2C_SEQ_STATUS                     S5C73M3_REG(0x0009, 0x59A6)
+#define  SEQ_END_PLL                           (1<<0x0)
+#define  SEQ_END_SENSOR                                (1<<0x1)
+#define  SEQ_END_GPIO                          (1<<0x2)
+#define  SEQ_END_FROM                          (1<<0x3)
+#define  SEQ_END_STABLE_AE_AWB                 (1<<0x4)
+#define  SEQ_END_READY_I2C_CMD                 (1<<0x5)
+
+#define REG_I2C_STATUS                         S5C73M3_REG(0x0009, 0x599E)
+#define  I2C_STATUS_CIS_I2C                    (1<<0x0)
+#define  I2C_STATUS_AF_INIT                    (1<<0x1)
+#define  I2C_STATUS_CAL_DATA                   (1<<0x2)
+#define  I2C_STATUS_FRAME_COUNT                        (1<<0x3)
+#define  I2C_STATUS_FROM_INIT                  (1<<0x4)
+#define  I2C_STATUS_I2C_CIS_STREAM_OFF         (1<<0x5)
+#define  I2C_STATUS_I2C_N_CMD_OVER             (1<<0x6)
+#define  I2C_STATUS_I2C_N_CMD_MISMATCH         (1<<0x7)
+#define  I2C_STATUS_CHECK_BIN_CRC              (1<<0x8)
+#define  I2C_STATUS_EXCEPTION                  (1<<0x9)
+#define  I2C_STATUS_INIF_INIT_STATE            (0x8)
+
+#define REG_STATUS                             S5C73M3_REG(0x0009, 0x5080)
+#define  REG_STATUS_BOOT_SUB_MAIN_ENTER                0xff01
+#define  REG_STATUS_BOOT_SRAM_TIMING_OK                0xff02
+#define  REG_STATUS_BOOT_INTERRUPTS_EN         0xff03
+#define  REG_STATUS_BOOT_R_PLL_DONE            0xff04
+#define  REG_STATUS_BOOT_R_PLL_LOCKTIME_DONE   0xff05
+#define  REG_STATUS_BOOT_DELAY_COUNT_DONE      0xff06
+#define  REG_STATUS_BOOT_I_PLL_DONE            0xff07
+#define  REG_STATUS_BOOT_I_PLL_LOCKTIME_DONE   0xff08
+#define  REG_STATUS_BOOT_PLL_INIT_OK           0xff09
+#define  REG_STATUS_BOOT_SENSOR_INIT_OK                0xff0a
+#define  REG_STATUS_BOOT_GPIO_SETTING_OK       0xff0b
+#define  REG_STATUS_BOOT_READ_CAL_DATA_OK      0xff0c
+#define  REG_STATUS_BOOT_STABLE_AE_AWB_OK      0xff0d
+#define  REG_STATUS_ISP_COMMAND_COMPLETED      0xffff
+#define  REG_STATUS_EXCEPTION_OCCURED          0xdead
+
+#define COMM_RESULT_OFFSET                     S5C73M3_REG(0x0009, 0x5000)
+
+#define COMM_IMG_OUTPUT                                0x0902
+#define  COMM_IMG_OUTPUT_HDR                   0x0008
+#define  COMM_IMG_OUTPUT_YUV                   0x0009
+#define  COMM_IMG_OUTPUT_INTERLEAVED           0x000d
+
+#define COMM_STILL_PRE_FLASH                   0x0a00
+#define  COMM_STILL_PRE_FLASH_FIRE             0x0000
+#define  COMM_STILL_PRE_FLASH_NON_FIRED                0x0000
+#define  COMM_STILL_PRE_FLASH_FIRED            0x0001
+
+#define COMM_STILL_MAIN_FLASH                  0x0a02
+#define  COMM_STILL_MAIN_FLASH_CANCEL          0x0001
+#define  COMM_STILL_MAIN_FLASH_FIRE            0x0002
+
+#define COMM_ZOOM_STEP                         0x0b00
+
+#define COMM_IMAGE_EFFECT                      0x0b0a
+#define  COMM_IMAGE_EFFECT_NONE                        0x0001
+#define  COMM_IMAGE_EFFECT_NEGATIVE            0x0002
+#define  COMM_IMAGE_EFFECT_AQUA                        0x0003
+#define  COMM_IMAGE_EFFECT_SEPIA               0x0004
+#define  COMM_IMAGE_EFFECT_MONO                        0x0005
+
+#define COMM_IMAGE_QUALITY                     0x0b0c
+#define  COMM_IMAGE_QUALITY_SUPERFINE          0x0000
+#define  COMM_IMAGE_QUALITY_FINE               0x0001
+#define  COMM_IMAGE_QUALITY_NORMAL             0x0002
+
+#define COMM_FLASH_MODE                                0x0b0e
+#define  COMM_FLASH_MODE_OFF                   0x0000
+#define  COMM_FLASH_MODE_ON                    0x0001
+#define  COMM_FLASH_MODE_AUTO                  0x0002
+
+#define COMM_FLASH_STATUS                      0x0b80
+#define  COMM_FLASH_STATUS_OFF                 0x0001
+#define  COMM_FLASH_STATUS_ON                  0x0002
+#define  COMM_FLASH_STATUS_AUTO                        0x0003
+
+#define COMM_FLASH_TORCH                       0x0b12
+#define  COMM_FLASH_TORCH_OFF                  0x0000
+#define  COMM_FLASH_TORCH_ON                   0x0001
+
+#define COMM_AE_NEEDS_FLASH                    0x0cba
+#define  COMM_AE_NEEDS_FLASH_OFF               0x0000
+#define  COMM_AE_NEEDS_FLASH_ON                        0x0001
+
+#define COMM_CHG_MODE                          0x0b10
+#define  COMM_CHG_MODE_NEW                     0x8000
+#define  COMM_CHG_MODE_SUBSAMPLING_HALF                0x2000
+#define  COMM_CHG_MODE_SUBSAMPLING_QUARTER     0x4000
+
+#define  COMM_CHG_MODE_YUV_320_240             0x0001
+#define  COMM_CHG_MODE_YUV_640_480             0x0002
+#define  COMM_CHG_MODE_YUV_880_720             0x0003
+#define  COMM_CHG_MODE_YUV_960_720             0x0004
+#define  COMM_CHG_MODE_YUV_1184_666            0x0005
+#define  COMM_CHG_MODE_YUV_1280_720            0x0006
+#define  COMM_CHG_MODE_YUV_1536_864            0x0007
+#define  COMM_CHG_MODE_YUV_1600_1200           0x0008
+#define  COMM_CHG_MODE_YUV_1632_1224           0x0009
+#define  COMM_CHG_MODE_YUV_1920_1080           0x000a
+#define  COMM_CHG_MODE_YUV_1920_1440           0x000b
+#define  COMM_CHG_MODE_YUV_2304_1296           0x000c
+#define  COMM_CHG_MODE_YUV_3264_2448           0x000d
+#define  COMM_CHG_MODE_YUV_352_288             0x000e
+#define  COMM_CHG_MODE_YUV_1008_672            0x000f
+
+#define  COMM_CHG_MODE_JPEG_640_480            0x0010
+#define  COMM_CHG_MODE_JPEG_800_450            0x0020
+#define  COMM_CHG_MODE_JPEG_800_600            0x0030
+#define  COMM_CHG_MODE_JPEG_1280_720           0x0040
+#define  COMM_CHG_MODE_JPEG_1280_960           0x0050
+#define  COMM_CHG_MODE_JPEG_1600_900           0x0060
+#define  COMM_CHG_MODE_JPEG_1600_1200          0x0070
+#define  COMM_CHG_MODE_JPEG_2048_1152          0x0080
+#define  COMM_CHG_MODE_JPEG_2048_1536          0x0090
+#define  COMM_CHG_MODE_JPEG_2560_1440          0x00a0
+#define  COMM_CHG_MODE_JPEG_2560_1920          0x00b0
+#define  COMM_CHG_MODE_JPEG_3264_2176          0x00c0
+#define  COMM_CHG_MODE_JPEG_1024_768           0x00d0
+#define  COMM_CHG_MODE_JPEG_3264_1836          0x00e0
+#define  COMM_CHG_MODE_JPEG_3264_2448          0x00f0
+
+#define COMM_AF_CON                            0x0e00
+#define  COMM_AF_CON_STOP                      0x0000
+#define  COMM_AF_CON_SCAN                      0x0001 /* Full Search */
+#define  COMM_AF_CON_START                     0x0002 /* Fast Search */
+
+#define COMM_AF_CAL                            0x0e06
+#define COMM_AF_TOUCH_AF                       0x0e0a
+
+#define REG_AF_STATUS                          S5C73M3_REG(0x0009, 0x5e80)
+#define  REG_CAF_STATUS_FIND_SEARCH_DIR                0x0001
+#define  REG_CAF_STATUS_FOCUSING               0x0002
+#define  REG_CAF_STATUS_FOCUSED                        0x0003
+#define  REG_CAF_STATUS_UNFOCUSED              0x0004
+#define  REG_AF_STATUS_INVALID                 0x0010
+#define  REG_AF_STATUS_FOCUSING                        0x0020
+#define  REG_AF_STATUS_FOCUSED                 0x0030
+#define  REG_AF_STATUS_UNFOCUSED               0x0040
+
+#define REG_AF_TOUCH_POSITION                  S5C73M3_REG(0x0009, 0x5e8e)
+#define COMM_AF_FACE_ZOOM                      0x0e10
+
+#define COMM_AF_MODE                           0x0e02
+#define  COMM_AF_MODE_NORMAL                   0x0000
+#define  COMM_AF_MODE_MACRO                    0x0001
+#define  COMM_AF_MODE_MOVIE_CAF_START          0x0002
+#define  COMM_AF_MODE_MOVIE_CAF_STOP           0x0003
+#define  COMM_AF_MODE_PREVIEW_CAF_START                0x0004
+#define  COMM_AF_MODE_PREVIEW_CAF_STOP         0x0005
+
+#define COMM_AF_SOFTLANDING                    0x0e16
+#define  COMM_AF_SOFTLANDING_ON                        0x0000
+#define  COMM_AF_SOFTLANDING_RES_COMPLETE      0x0001
+
+#define COMM_FACE_DET                          0x0e0c
+#define  COMM_FACE_DET_OFF                     0x0000
+#define  COMM_FACE_DET_ON                      0x0001
+
+#define COMM_FACE_DET_OSD                      0x0e0e
+#define  COMM_FACE_DET_OSD_OFF                 0x0000
+#define  COMM_FACE_DET_OSD_ON                  0x0001
+
+#define COMM_AE_CON                            0x0c00
+#define  COMM_AE_STOP                          0x0000 /* lock */
+#define  COMM_AE_START                         0x0001 /* unlock */
+
+#define COMM_ISO                               0x0c02
+#define  COMM_ISO_AUTO                         0x0000
+#define  COMM_ISO_100                          0x0001
+#define  COMM_ISO_200                          0x0002
+#define  COMM_ISO_400                          0x0003
+#define  COMM_ISO_800                          0x0004
+#define  COMM_ISO_SPORTS                       0x0005
+#define  COMM_ISO_NIGHT                                0x0006
+#define  COMM_ISO_INDOOR                       0x0007
+
+/* 0x00000 (-2.0 EV)...0x0008 (2.0 EV), 0.5EV step */
+#define COMM_EV                                        0x0c04
+
+#define COMM_METERING                          0x0c06
+#define  COMM_METERING_CENTER                  0x0000
+#define  COMM_METERING_SPOT                    0x0001
+#define  COMM_METERING_AVERAGE                 0x0002
+#define  COMM_METERING_SMART                   0x0003
+
+#define COMM_WDR                               0x0c08
+#define  COMM_WDR_OFF                          0x0000
+#define  COMM_WDR_ON                           0x0001
+
+#define COMM_FLICKER_MODE                      0x0c12
+#define  COMM_FLICKER_NONE                     0x0000
+#define  COMM_FLICKER_MANUAL_50HZ              0x0001
+#define  COMM_FLICKER_MANUAL_60HZ              0x0002
+#define  COMM_FLICKER_AUTO                     0x0003
+#define  COMM_FLICKER_AUTO_50HZ                        0x0004
+#define  COMM_FLICKER_AUTO_60HZ                        0x0005
+
+#define COMM_FRAME_RATE                                0x0c1e
+#define  COMM_FRAME_RATE_AUTO_SET              0x0000
+#define  COMM_FRAME_RATE_FIXED_30FPS           0x0002
+#define  COMM_FRAME_RATE_FIXED_20FPS           0x0003
+#define  COMM_FRAME_RATE_FIXED_15FPS           0x0004
+#define  COMM_FRAME_RATE_FIXED_60FPS           0x0007
+#define  COMM_FRAME_RATE_FIXED_120FPS          0x0008
+#define  COMM_FRAME_RATE_FIXED_7FPS            0x0009
+#define  COMM_FRAME_RATE_FIXED_10FPS           0x000a
+#define  COMM_FRAME_RATE_FIXED_90FPS           0x000b
+#define  COMM_FRAME_RATE_ANTI_SHAKE            0x0013
+
+/* 0x0000...0x0004 -> sharpness: 0, 1, 2, -1, -2 */
+#define COMM_SHARPNESS                         0x0c14
+
+/* 0x0000...0x0004 -> saturation: 0, 1, 2, -1, -2 */
+#define COMM_SATURATION                                0x0c16
+
+/* 0x0000...0x0004 -> contrast: 0, 1, 2, -1, -2 */
+#define COMM_CONTRAST                          0x0c18
+
+#define COMM_SCENE_MODE                                0x0c1a
+#define  COMM_SCENE_MODE_NONE                  0x0000
+#define  COMM_SCENE_MODE_PORTRAIT              0x0001
+#define  COMM_SCENE_MODE_LANDSCAPE             0x0002
+#define  COMM_SCENE_MODE_SPORTS                        0x0003
+#define  COMM_SCENE_MODE_INDOOR                        0x0004
+#define  COMM_SCENE_MODE_BEACH                 0x0005
+#define  COMM_SCENE_MODE_SUNSET                        0x0006
+#define  COMM_SCENE_MODE_DAWN                  0x0007
+#define  COMM_SCENE_MODE_FALL                  0x0008
+#define  COMM_SCENE_MODE_NIGHT                 0x0009
+#define  COMM_SCENE_MODE_AGAINST_LIGHT         0x000a
+#define  COMM_SCENE_MODE_FIRE                  0x000b
+#define  COMM_SCENE_MODE_TEXT                  0x000c
+#define  COMM_SCENE_MODE_CANDLE                        0x000d
+
+#define COMM_AE_AUTO_BRACKET                   0x0b14
+#define  COMM_AE_AUTO_BRAKET_EV05              0x0080
+#define  COMM_AE_AUTO_BRAKET_EV10              0x0100
+#define  COMM_AE_AUTO_BRAKET_EV15              0x0180
+#define  COMM_AE_AUTO_BRAKET_EV20              0x0200
+
+#define COMM_SENSOR_STREAMING                  0x090a
+#define  COMM_SENSOR_STREAMING_OFF             0x0000
+#define  COMM_SENSOR_STREAMING_ON              0x0001
+
+#define COMM_AWB_MODE                          0x0d02
+#define  COMM_AWB_MODE_INCANDESCENT            0x0000
+#define  COMM_AWB_MODE_FLUORESCENT1            0x0001
+#define  COMM_AWB_MODE_FLUORESCENT2            0x0002
+#define  COMM_AWB_MODE_DAYLIGHT                        0x0003
+#define  COMM_AWB_MODE_CLOUDY                  0x0004
+#define  COMM_AWB_MODE_AUTO                    0x0005
+
+#define COMM_AWB_CON                           0x0d00
+#define  COMM_AWB_STOP                         0x0000 /* lock */
+#define  COMM_AWB_START                                0x0001 /* unlock */
+
+#define COMM_FW_UPDATE                         0x0906
+#define  COMM_FW_UPDATE_NOT_READY              0x0000
+#define  COMM_FW_UPDATE_SUCCESS                        0x0005
+#define  COMM_FW_UPDATE_FAIL                   0x0007
+#define  COMM_FW_UPDATE_BUSY                   0xffff
+
+
+#define S5C73M3_MAX_SUPPLIES                   6
+
+struct s5c73m3_ctrls {
+       struct v4l2_ctrl_handler handler;
+       struct {
+               /* exposure/exposure bias cluster */
+               struct v4l2_ctrl *auto_exposure;
+               struct v4l2_ctrl *exposure_bias;
+               struct v4l2_ctrl *exposure_metering;
+       };
+       struct {
+               /* iso/auto iso cluster */
+               struct v4l2_ctrl *auto_iso;
+               struct v4l2_ctrl *iso;
+       };
+       struct v4l2_ctrl *auto_wb;
+       struct {
+               /* continuous auto focus/auto focus cluster */
+               struct v4l2_ctrl *focus_auto;
+               struct v4l2_ctrl *af_start;
+               struct v4l2_ctrl *af_stop;
+               struct v4l2_ctrl *af_status;
+               struct v4l2_ctrl *af_distance;
+       };
+
+       struct v4l2_ctrl *aaa_lock;
+       struct v4l2_ctrl *colorfx;
+       struct v4l2_ctrl *contrast;
+       struct v4l2_ctrl *saturation;
+       struct v4l2_ctrl *sharpness;
+       struct v4l2_ctrl *zoom;
+       struct v4l2_ctrl *wdr;
+       struct v4l2_ctrl *stabilization;
+       struct v4l2_ctrl *jpeg_quality;
+       struct v4l2_ctrl *scene_mode;
+};
+
+enum s5c73m3_gpio_id {
+       STBY,
+       RST,
+       GPIO_NUM,
+};
+
+enum s5c73m3_resolution_types {
+       RES_ISP,
+       RES_JPEG,
+};
+
+struct s5c73m3_interval {
+       u16 fps_reg;
+       struct v4l2_fract interval;
+       /* Maximum rectangle for the interval */
+       struct v4l2_frmsize_discrete size;
+};
+
+struct s5c73m3 {
+       struct v4l2_subdev sensor_sd;
+       struct media_pad sensor_pads[S5C73M3_NUM_PADS];
+
+       struct v4l2_subdev oif_sd;
+       struct media_pad oif_pads[OIF_NUM_PADS];
+
+       struct spi_driver spidrv;
+       struct spi_device *spi_dev;
+       struct i2c_client *i2c_client;
+       u32 i2c_write_address;
+       u32 i2c_read_address;
+
+       struct regulator_bulk_data supplies[S5C73M3_MAX_SUPPLIES];
+       struct s5c73m3_gpio gpio[GPIO_NUM];
+
+       /* External master clock frequency */
+       u32 mclk_frequency;
+       /* Video bus type - MIPI-CSI2/paralell */
+       enum v4l2_mbus_type bus_type;
+
+       const struct s5c73m3_frame_size *sensor_pix_size[2];
+       const struct s5c73m3_frame_size *oif_pix_size[2];
+       enum v4l2_mbus_pixelcode mbus_code;
+
+       const struct s5c73m3_interval *fiv;
+
+       struct v4l2_mbus_frame_desc frame_desc;
+       /* protects the struct members below */
+       struct mutex lock;
+
+       struct s5c73m3_ctrls ctrls;
+
+       u8 streaming:1;
+       u8 apply_fmt:1;
+       u8 apply_fiv:1;
+       u8 isp_ready:1;
+
+       short power;
+
+       char sensor_fw[S5C73M3_SENSOR_FW_LEN + 2];
+       char sensor_type[S5C73M3_SENSOR_TYPE_LEN + 2];
+       char fw_file_version[2];
+       unsigned int fw_size;
+};
+
+struct s5c73m3_frame_size {
+       u32 width;
+       u32 height;
+       u8 reg_val;
+};
+
+extern int s5c73m3_dbg;
+
+int s5c73m3_register_spi_driver(struct s5c73m3 *state);
+void s5c73m3_unregister_spi_driver(struct s5c73m3 *state);
+int s5c73m3_spi_write(struct s5c73m3 *state, const void *addr,
+                     const unsigned int len, const unsigned int tx_size);
+int s5c73m3_spi_read(struct s5c73m3 *state, void *addr,
+                     const unsigned int len, const unsigned int tx_size);
+
+int s5c73m3_read(struct s5c73m3 *state, u32 addr, u16 *data);
+int s5c73m3_write(struct s5c73m3 *state, u32 addr, u16 data);
+int s5c73m3_isp_command(struct s5c73m3 *state, u16 command, u16 data);
+int s5c73m3_init_controls(struct s5c73m3 *state);
+
+static inline struct v4l2_subdev *ctrl_to_sensor_sd(struct v4l2_ctrl *ctrl)
+{
+       return &container_of(ctrl->handler, struct s5c73m3,
+                            ctrls.handler)->sensor_sd;
+}
+
+static inline struct s5c73m3 *sensor_sd_to_s5c73m3(struct v4l2_subdev *sd)
+{
+       return container_of(sd, struct s5c73m3, sensor_sd);
+}
+
+static inline struct s5c73m3 *oif_sd_to_s5c73m3(struct v4l2_subdev *sd)
+{
+       return container_of(sd, struct s5c73m3, oif_sd);
+}
+#endif /* S5C73M3_H_ */
diff --git a/include/media/s5c73m3.h b/include/media/s5c73m3.h
new file mode 100644 (file)
index 0000000..ccb9e54
--- /dev/null
@@ -0,0 +1,55 @@
+/*
+ * Samsung LSI S5C73M3 8M pixel camera driver
+ *
+ * Copyright (C) 2012, Samsung Electronics, Co., Ltd.
+ * Sylwester Nawrocki <s.nawrocki@samsung.com>
+ * Andrzej Hajda <a.hajda@samsung.com>
+ *
+ * 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 free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#ifndef MEDIA_S5C73M3__
+#define MEDIA_S5C73M3__
+
+#include <linux/videodev2.h>
+#include <media/v4l2-mediabus.h>
+
+/**
+ * struct s5c73m3_gpio - data structure describing a GPIO
+ * @gpio:  GPIO number
+ * @level: indicates active state of the @gpio
+ */
+struct s5c73m3_gpio {
+       int gpio;
+       int level;
+};
+
+/**
+ * struct s5c73m3_platform_data - s5c73m3 driver platform data
+ * @mclk_frequency: sensor's master clock frequency in Hz
+ * @gpio_reset:  GPIO driving RESET pin
+ * @gpio_stby:   GPIO driving STBY pin
+ * @nlanes:      maximum number of MIPI-CSI lanes used
+ * @horiz_flip:  default horizontal image flip value, non zero to enable
+ * @vert_flip:   default vertical image flip value, non zero to enable
+ */
+
+struct s5c73m3_platform_data {
+       unsigned long mclk_frequency;
+
+       struct s5c73m3_gpio gpio_reset;
+       struct s5c73m3_gpio gpio_stby;
+
+       enum v4l2_mbus_type bus_type;
+       u8 nlanes;
+       u8 horiz_flip;
+       u8 vert_flip;
+};
+
+#endif /* MEDIA_S5C73M3__ */