--- /dev/null
+/*
+ * ov5650.c - ov5650 sensor driver
+ *
+ * Copyright (C) 2010 Google Inc.
+ *
+ * Contributors:
+ * Rebecca Schultz Zavin <rebecca@android.com>
+ *
+ * Leverage OV9640.c
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include <linux/delay.h>
+#include <linux/fs.h>
+#include <linux/i2c.h>
+#include <linux/miscdevice.h>
+#include <linux/slab.h>
+#include <linux/uaccess.h>
+#include <media/ov5650.h>
+
+struct ov5650_reg {
+ u16 addr;
+ u16 val;
+};
+
+struct ov5650_info {
+ int mode;
+ struct i2c_client *i2c_client;
+ struct ov5650_platform_data *pdata;
+};
+
+#define OV5650_TABLE_WAIT_MS 0
+#define OV5650_TABLE_END 1
+#define OV5650_MAX_RETRIES 3
+
+static struct ov5650_reg mode_start[] = {
+ {0x3008, 0x82}, /* reset registers pg 72 */
+ {OV5650_TABLE_WAIT_MS, 5},
+ {0x3008, 0x42}, /* register power down pg 72 */
+ {OV5650_TABLE_WAIT_MS, 5},
+ {0x3103, 0x93}, /* power up system clock from PLL page 77 */
+ {0x3017, 0xff}, /* PAD output enable page 100 */
+ {0x3018, 0xfc}, /* PAD output enable page 100 */
+
+ {0x3600, 0x50}, /* analog pg 108 */
+ {0x3601, 0x0d}, /* analog pg 108 */
+ {0x3604, 0x50}, /* analog pg 108 */
+ {0x3605, 0x04}, /* analog pg 108 */
+ {0x3606, 0x3f}, /* analog pg 108 */
+ {0x3612, 0x1a}, /* analog pg 108 */
+ {0x3630, 0x22}, /* analog pg 108 */
+ {0x3631, 0x22}, /* analog pg 108 */
+ {0x3702, 0x3a}, /* analog pg 108 */
+ {0x3704, 0x18}, /* analog pg 108 */
+ {0x3705, 0xda}, /* analog pg 108 */
+ {0x3706, 0x41}, /* analog pg 108 */
+ {0x370a, 0x80}, /* analog pg 108 */
+ {0x370b, 0x40}, /* analog pg 108 */
+ {0x370e, 0x00}, /* analog pg 108 */
+ {0x3710, 0x28}, /* analog pg 108 */
+ {0x3712, 0x13}, /* analog pg 108 */
+ {0x3830, 0x50}, /* manual exposure gain bit [0] */
+ {0x3a18, 0x00}, /* AEC gain ceiling bit 8 pg 114 */
+ {0x3a19, 0xf8}, /* AEC gain ceiling pg 114 */
+ {0x3a00, 0x38}, /* AEC control 0 debug mode band low
+ limit mode band func pg 112 */
+
+ {0x3603, 0xa7}, /* analog pg 108 */
+ {0x3615, 0x50}, /* analog pg 108 */
+ {0x3620, 0x56}, /* analog pg 108 */
+ {0x3810, 0x00}, /* TIMING HVOFFS both are zero pg 80 */
+ {0x3836, 0x00}, /* TIMING HVPAD both are zero pg 82 */
+ {0x3a1a, 0x06}, /* DIFF MAX an AEC register??? pg 114 */
+ {0x4000, 0x01}, /* BLC enabled pg 120 */
+ {0x401c, 0x48}, /* reserved pg 120 */
+ {0x401d, 0x28}, /* BLC control pg 120 */
+ {0x5000, 0x00}, /* ISP control00 features are disabled. pg 132 */
+ {0x5001, 0x00}, /* ISP control01 awb disabled. pg 132 */
+ {0x5002, 0x00}, /* ISP control02 debug mode disabled pg 132 */
+ {0x503d, 0x00}, /* ISP control3D features disabled pg 133 */
+ {0x5046, 0x00}, /* ISP control isp disable awbg disable pg 133 */
+
+ {0x300f, 0x8f}, /* PLL control00 R_SELD5 [7:6] div by 4 R_DIVL [2]
+ two lane div 1 SELD2P5 [1:0] div 2.5 pg 99 */
+ {0x3010, 0x10}, /* PLL control01 DIVM [3:0] DIVS [7:4] div 1 pg 99 */
+ {0x3011, 0x14}, /* PLL control02 R_DIVP [5:0] div 20 pg 99 */
+ {0x3012, 0x02}, /* PLL CTR 03, default */
+ {0x3815, 0x82}, /* PCLK to SCLK ratio bit[4:0] is set to 2 pg 81 */
+ {0x3503, 0x33}, /* AEC auto AGC auto gain has no latch delay. pg 38 */
+ /* {FAST_SETMODE_START, 0}, */
+ {0x3613, 0x44}, /* analog pg 108 */
+ {OV5650_TABLE_END, 0x0},
+};
+
+static const int mode_start_len = ARRAY_SIZE(mode_start);
+
+static struct ov5650_reg mode_2592x1944[] = {
+ {0x3621, 0x2f}, /* analog horizontal binning/sampling not enabled.
+ pg 108 */
+ {0x3632, 0x55}, /* analog pg 108 */
+ {0x3703, 0xe6}, /* analog pg 108 */
+ {0x370c, 0xa0}, /* analog pg 108 */
+ {0x370d, 0x04}, /* analog pg 108 */
+ {0x3713, 0x2f}, /* analog pg 108 */
+ {0x3800, 0x02}, /* HREF start point higher 4 bits [3:0] pg 108 */
+ {0x3801, 0x58}, /* HREF start point lower 8 bits [7:0] pg 108 */
+ {0x3802, 0x00}, /* VREF start point higher 4 bits [3:0] pg 108 */
+ {0x3803, 0x0c}, /* VREF start point [7:0] pg 108 */
+ {0x3804, 0x0a}, /* HREF width higher 4 bits [3:0] pg 108 */
+ {0x3805, 0x20}, /* HREF width lower 8 bits [7:0] pg 108 */
+ {0x3806, 0x07}, /* VREF height higher 4 bits [3:0] pg 109 */
+ {0x3807, 0xa0}, /* VREF height lower 8 bits [7:0] pg 109 */
+ {0x3808, 0x0a}, /* DVP horizontal output size higher 4 bits [3:0]
+ pg 109 */
+ {0x3809, 0x20}, /* DVP horizontal output size lower 8 bits [7:0]
+ pg 109 */
+ {0x380a, 0x07}, /* DVP vertical output size higher 4 bits [3:0]
+ pg 109 */
+ {0x380b, 0xa0}, /* DVP vertical output size lower 8 bits [7:0]
+ pg 109 */
+ {0x380c, 0x0c}, /* total horizontal size higher 5 bits [4:0] pg 109,
+ line length */
+ {0x380d, 0xb4}, /* total horizontal size lower 8 bits [7:0] pg 109,
+ line length */
+ {0x380e, 0x07}, /* total vertical size higher 5 bits [4:0] pg 109,
+ frame length */
+ {0x380f, 0xb0}, /* total vertical size lower 8 bits [7:0] pg 109,
+ frame length */
+ {0x3818, 0xc0}, /* timing control reg18 mirror & dkhf pg 110 */
+ {0x381a, 0x3c}, /* HS mirror adjustment pg 110 */
+ {0x3a0d, 0x06}, /* b60 max pg 113 */
+ {0x3c01, 0x00}, /* 5060HZ_CTRL01 pg 116 */
+ {0x3007, 0x3f}, /* clock enable03 pg 98 */
+ {0x5059, 0x80}, /* => NOT found */
+ {0x3003, 0x03}, /* reset MIPI and DVP pg 97 */
+ {0x3500, 0x00}, /* long exp 1/3 in unit of 1/16 line, pg 38 */
+ {0x3501, 0x7a}, /* long exp 2/3 in unit of 1/16 line, pg 38,
+ note frame length start with 0x7b0,
+ and SENSOR_BAYER_DEFAULT_MAX_COARSE_DIFF=3 */
+ {0x3502, 0xd0}, /* long exp 3/3 in unit of 1/16 line, pg 38.
+ Two lines of integration time. */
+ {0x350a, 0x00}, /* gain output to sensor, pg 38 */
+ {0x350b, 0x00}, /* gain output to sensor, pg 38 */
+ {0x4801, 0x0f}, /* MIPI control01 pg 125 */
+ {0x300e, 0x0c}, /* SC_MIPI_SC_CTRL0 pg 73 */
+ {0x4803, 0x50}, /* MIPI CTRL3 pg 91 */
+ {0x4800, 0x14}, /* MIPI CTRl0 idle and short line pg 89 */
+ {OV5650_TABLE_END, 0x0000}
+};
+
+static struct ov5650_reg mode_1296x972[] = {
+ {0x3621, 0xaf}, /* analog horizontal binning/sampling not enabled.
+ pg 108 */
+ {0x3632, 0x5a}, /* analog pg 108 */
+ {0x3703, 0xb0}, /* analog pg 108 */
+ {0x370c, 0xc5}, /* analog pg 108 */
+ {0x370d, 0x42}, /* analog pg 108 */
+ {0x3713, 0x2f}, /* analog pg 108 */
+ {0x3800, 0x03}, /* HREF start point higher 4 bits [3:0] pg 108 */
+ {0x3801, 0x3c}, /* HREF start point lower 8 bits [7:0] pg 108 */
+ {0x3802, 0x00}, /* VREF start point higher 4 bits [3:0] pg 108 */
+ {0x3803, 0x06}, /* VREF start point [7:0] pg 108 */
+ {0x3804, 0x05}, /* HREF width higher 4 bits [3:0] pg 108 */
+ {0x3805, 0x10}, /* HREF width lower 8 bits [7:0] pg 108 */
+ {0x3806, 0x03}, /* VREF height higher 4 bits [3:0] pg 109 */
+ {0x3807, 0xd0}, /* VREF height lower 8 bits [7:0] pg 109 */
+ {0x3808, 0x05}, /* DVP horizontal output size higher 4 bits [3:0]
+ pg 109 */
+ {0x3809, 0x10}, /* DVP horizontal output size lower 8 bits [7:0]
+ pg 109 */
+ {0x380a, 0x03}, /* DVP vertical output size higher 4 bits [3:0]
+ pg 109 */
+ {0x380b, 0xd0}, /* DVP vertical output size lower 8 bits [7:0]
+ pg 109 */
+ {0x380c, 0x08}, /* total horizontal size higher 5 bits [4:0]
+ pg 109, line length */
+ {0x380d, 0xa8}, /* total horizontal size lower 8 bits [7:0] pg 109,
+ line length */
+ {0x380e, 0x05}, /* total vertical size higher 5 bits [4:0] pg 109,
+ frame length */
+ {0x380f, 0xa4}, /* total horizontal size lower 8 bits [7:0] pg 109,
+ frame length */
+ {0x3818, 0xc1}, /* timing control reg18 mirror & dkhf pg 110 */
+ {0x381a, 0x00}, /* HS mirror adjustment pg 110 */
+ {0x3a0d, 0x08}, /* b60 max pg 113 */
+ {0x3c01, 0x00}, /* 5060HZ_CTRL01 pg 116 */
+ {0x3007, 0x3b}, /* clock enable03 pg 98 */
+ {0x5059, 0x80}, /* => NOT found. added */
+ {0x3003, 0x03}, /* reset MIPI and DVP pg 97 */
+ {0x3500, 0x00}, /* long exp 1/3 in unit of 1/16 line, pg 38,
+ note frame length is from 0x5a4,
+ and SENSOR_BAYER_DEFAULT_MAX_COARSE_DIFF=3 */
+ {0x3501, 0x5a}, /* long exp 2/3 in unit of 1/16 line, pg 38 */
+ {0x3502, 0x10}, /* long exp 3/3 in unit of 1/16 line, pg 38 */
+ {0x350a, 0x00}, /* gain output to sensor, pg 38 */
+ {0x350b, 0x10}, /* gain output to sensor, pg 38 */
+ {0x4801, 0x0f}, /* MIPI control01 pg 125 */
+ {0x300e, 0x0c}, /* SC_MIPI_SC_CTRL0 pg 73 */
+ {0x4803, 0x50}, /* MIPI CTRL3 pg 91 */
+ {0x4800, 0x04}, /* MIPI CTRl0 idle and short line pg 89 */
+ {OV5650_TABLE_END, 0x0000}
+};
+
+static struct ov5650_reg mode_1920x1088[] = {
+ {0x3621, 0x2f}, /* analog horizontal binning/sampling not enabled.
+ pg 108 */
+ {0x3632, 0x55}, /* analog pg 108 */
+ {0x3703, 0xe6}, /* analog pg 108 */
+ {0x370c, 0xa0}, /* analog pg 108 */
+ {0x370d, 0x04}, /* analog pg 108 */
+ {0x3713, 0x2f}, /* analog pg 108 */
+ {0x3800, 0x02}, /* HREF start point higher 4 bits [3:0] pg 108 */
+ {0x3801, 0x58}, /* HREF start point lower 8 bits [7:0] pg 108 */
+ {0x3802, 0x00}, /* VREF start point higher 4 bits [3:0] pg 108 */
+ {0x3803, 0x0c}, /* VREF start point [7:0] pg 108 */
+ {0x3804, 0x0a}, /* HREF width higher 4 bits [3:0] pg 108 */
+ {0x3805, 0x20}, /* HREF width lower 8 bits [7:0] pg 108 */
+ {0x3806, 0x07}, /* VREF height higher 4 bits [3:0] pg 109 */
+ {0x3807, 0xa0}, /* VREF height lower 8 bits [7:0] pg 109 */
+ {0x3808, 0x0a}, /* DVP horizontal output size higher 4 bits [3:0]
+ pg 109 */
+ {0x3809, 0x20}, /* DVP horizontal output size lower 8 bits [7:0]
+ pg 109 */
+ {0x380a, 0x07}, /* DVP vertical output size higher 4 bits [3:0]
+ pg 109 */
+ {0x380b, 0xa0}, /* DVP vertical output size lower 8 bits [7:0]
+ pg 109 */
+ {0x380c, 0x0c}, /* total horizontal size higher 5 bits [4:0] pg 109,
+ line length */
+ {0x380d, 0xb4}, /* total horizontal size lower 8 bits [7:0] pg 109,
+ line length */
+ {0x380e, 0x07}, /* total vertical size higher 5 bits [4:0] pg 109,
+ frame length */
+ {0x380f, 0xb0}, /* total vertical size lower 8 bits [7:0] pg 109,
+ frame length */
+ {0x3818, 0xc0}, /* timing control reg18 mirror & dkhf pg 110 */
+ {0x381a, 0x3c}, /* HS mirror adjustment pg 110 */
+ {0x3a0d, 0x06}, /* b60 max pg 113 */
+ {0x3c01, 0x00}, /* 5060HZ_CTRL01 pg 116 */
+ {0x3007, 0x3f}, /* clock enable03 pg 98 */
+ {0x5059, 0x80}, /* => NOT found */
+ {0x3003, 0x03}, /* reset MIPI and DVP pg 97 */
+ {0x3500, 0x00}, /* long exp 1/3 in unit of 1/16 line, pg 38 */
+ {0x3501, 0x7a}, /* long exp 2/3 in unit of 1/16 line, pg 38,
+ note frame length start with 0x7b0,
+ and SENSOR_BAYER_DEFAULT_MAX_COARSE_DIFF=3 */
+ {0x3502, 0xd0}, /* long exp 3/3 in unit of 1/16 line, pg 38.
+ Two lines of integration time. */
+ {0x350a, 0x00}, /* gain output to sensor, pg 38 */
+ {0x350b, 0x00}, /* gain output to sensor, pg 38 */
+ {0x4801, 0x0f}, /* MIPI control01 pg 125 */
+ {0x300e, 0x0c}, /* SC_MIPI_SC_CTRL0 pg 73 */
+ {0x4803, 0x50}, /* MIPI CTRL3 pg 91 */
+ {0x4800, 0x14}, /* MIPI CTRl0 idle and short line pg 89 */
+ {OV5650_TABLE_END, 0x0000}
+};
+
+static struct ov5650_reg mode_end[] = {
+ {0x3212, 0x00}, /* SRM_GROUP_ACCESS (group hold begin) */
+ {0x3003, 0x01}, /* reset DVP pg 97 */
+ {0x3212, 0x10}, /* SRM_GROUP_ACCESS (group hold end) */
+ {0x3212, 0xa0}, /* SRM_GROUP_ACCESS (group hold launch) */
+ {0x3008, 0x02}, /* SYSTEM_CTRL0 mipi suspend mask pg 98 */
+
+ /* {FAST_SETMODE_END, 0}, */
+ {OV5650_TABLE_END, 0x0000}
+};
+
+enum {
+ OV5650_MODE_2592x1944,
+ OV5650_MODE_1296x972,
+ OV5650_MODE_1920x1088,
+};
+
+static struct ov5650_reg *mode_table[] = {
+ [OV5650_MODE_2592x1944] = mode_2592x1944,
+ [OV5650_MODE_1296x972] = mode_1296x972,
+ [OV5650_MODE_1920x1088] = mode_1920x1088,
+};
+
+static int ov5650_read_reg(struct i2c_client *client, u16 addr, u8 *val)
+{
+ int err;
+ struct i2c_msg msg[2];
+ unsigned char data[3];
+
+ if (!client->adapter)
+ return -ENODEV;
+
+ msg[0].addr = client->addr;
+ msg[0].flags = 0;
+ msg[0].len = 2;
+ msg[0].buf = data;
+
+ /* high byte goes out first */
+ data[0] = (u8) (addr >> 8);;
+ data[1] = (u8) (addr & 0xff);
+
+ msg[1].addr = client->addr;
+ msg[1].flags = I2C_M_RD;
+ msg[1].len = 1;
+ msg[1].buf = data + 2;
+ err = i2c_transfer(client->adapter, msg, 2);
+
+ if (err != 2)
+ return -EINVAL;
+
+ *val = data[2];
+
+ return 0;
+}
+
+static int ov5650_write_reg(struct i2c_client *client, u16 addr, u8 val)
+{
+ int err;
+ struct i2c_msg msg;
+ unsigned char data[3];
+ int retry = 0;
+
+ if (!client->adapter)
+ return -ENODEV;
+
+ data[0] = (u8) (addr >> 8);;
+ data[1] = (u8) (addr & 0xff);
+ data[2] = (u8) (val & 0xff);
+
+ msg.addr = client->addr;
+ msg.flags = 0;
+ msg.len = 3;
+ msg.buf = data;
+
+ do {
+ err = i2c_transfer(client->adapter, &msg, 1);
+ if (err == 1)
+ return 0;
+ retry++;
+ pr_err("ov5650: i2c transfer failed, retrying %x %x\n",
+ addr, val);
+ msleep(3);
+ } while (retry <= OV5650_MAX_RETRIES);
+
+ return err;
+}
+
+static int ov5650_write_table(struct i2c_client *client,
+ const struct ov5650_reg table[])
+{
+ int err;
+ const struct ov5650_reg *next;
+
+ for (next = table; next->addr != OV5650_TABLE_END; next++) {
+ if (next->addr == OV5650_TABLE_WAIT_MS) {
+ msleep(next->val);
+ continue;
+ }
+
+ err = ov5650_write_reg(client, next->addr, next->val);
+ if (err)
+ return err;
+ }
+ return 0;
+}
+
+static int ov5650_set_mode(struct ov5650_info *info, struct ov5650_mode *mode)
+{
+ int sensor_mode;
+ int err;
+
+ pr_info("%s: xres %u yres %u\n", __func__, mode->xres, mode->yres);
+ if (mode->xres == 2592 && mode->yres == 1944)
+ sensor_mode = OV5650_MODE_2592x1944;
+ else if (mode->xres == 1296 && mode->yres == 972)
+ sensor_mode = OV5650_MODE_1296x972;
+ else if (mode->xres == 1920 && mode->yres == 1088)
+ sensor_mode = OV5650_MODE_1920x1088;
+ else {
+ pr_err("%s: invalid resolution supplied to set mode %d %d\n",
+ __func__, mode->xres, mode->yres);
+ return -EINVAL;
+ }
+
+ err = ov5650_write_table(info->i2c_client, mode_start);
+ if (err)
+ return err;
+ err = ov5650_write_table(info->i2c_client, mode_table[sensor_mode]);
+ if (err)
+ return err;
+ err = ov5650_write_table(info->i2c_client, mode_end);
+ if (err)
+ return err;
+ info->mode = sensor_mode;
+ return 0;
+}
+
+static int ov5650_set_frame_length(struct ov5650_info *info, u32 frame_length)
+{
+ pr_info("%s: exposure->frame_length %u\n", __func__, frame_length);
+
+ /* XXX check errors here */
+ /* update frame length*/
+ ov5650_write_reg(info->i2c_client, 0x380e, (frame_length >> 8) & 0xff);
+ ov5650_write_reg(info->i2c_client, 0x380f, frame_length & 0xff);
+
+ return 0;
+}
+
+static int ov5650_set_coarse_time(struct ov5650_info *info, u32 coarse_time)
+{
+ pr_info("%s: exposure->coarse_time %u\n", __func__, coarse_time);
+ /* update coarse time */
+ ov5650_write_reg(info->i2c_client, 0x3212, 0x01);
+ ov5650_write_reg(info->i2c_client, 0x3500,
+ (coarse_time >> 12) & 0xff);
+ ov5650_write_reg(info->i2c_client, 0x3501,
+ (coarse_time >> 4) & 0xff);
+ ov5650_write_reg(info->i2c_client, 0x3502,
+ (coarse_time & 0xf) << 4);
+ ov5650_write_reg(info->i2c_client, 0x3212, 0x11);
+ ov5650_write_reg(info->i2c_client, 0x3212, 0xa1);
+
+ return 0;
+}
+
+static int ov5650_set_gain(struct ov5650_info *info, u16 gain)
+{
+ pr_info("%s: gain %u\n", __func__, gain);
+
+ /* update frame length*/
+ ov5650_write_reg(info->i2c_client, 0x350b, gain);
+
+ return 0;
+}
+
+static int ov5650_get_status(struct ov5650_info *info, u8 *status)
+{
+ int err;
+
+ *status = 0;
+ err = ov5650_read_reg(info->i2c_client, 0x002, status);
+ pr_info("%s: %u %d\n", __func__, *status, err);
+ return err;
+}
+
+
+static int ov5650_ioctl(struct inode *inode, struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ struct ov5650_info *info = file->private_data;
+ pr_info("%s\n", __func__);
+
+ switch (cmd) {
+ case OV5650_IOCTL_SET_MODE:
+ {
+ struct ov5650_mode mode;
+ if (copy_from_user(&mode,
+ (const void __user *)arg,
+ sizeof(struct ov5650_mode))) {
+ pr_info("%s %d\n", __func__, __LINE__);
+ return -EFAULT;
+ }
+
+ return ov5650_set_mode(info, &mode);
+ }
+ case OV5650_IOCTL_SET_FRAME_LENGTH:
+ return ov5650_set_frame_length(info, (u32)arg);
+ case OV5650_IOCTL_SET_COARSE_TIME:
+ return ov5650_set_coarse_time(info, (u32)arg);
+ case OV5650_IOCTL_SET_GAIN:
+ return ov5650_set_gain(info, (u16)arg);
+ case OV5650_IOCTL_GET_STATUS:
+ {
+ int err;
+ u8 status;
+
+ err = ov5650_get_status(info, &status);
+ if (err)
+ return err;
+ if (copy_to_user((void __user *)arg, &status,
+ 2)) {
+ pr_info("%s %d\n", __func__, __LINE__);
+ return -EFAULT;
+ }
+ return 0;
+ }
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static struct ov5650_info *info;
+
+static int ov5650_open(struct inode *inode, struct file *file)
+{
+ u8 status;
+
+ pr_info("%s\n", __func__);
+ file->private_data = info;
+ if (info->pdata && info->pdata->power_on)
+ info->pdata->power_on();
+ ov5650_get_status(info, &status);
+ return 0;
+}
+
+int ov5650_release(struct inode *inode, struct file *file)
+{
+ pr_info("%s\n", __func__);
+ if (info->pdata && info->pdata->power_off)
+ info->pdata->power_off();
+ file->private_data = NULL;
+ return 0;
+}
+
+
+static const struct file_operations ov5650_fileops = {
+ .owner = THIS_MODULE,
+ .open = ov5650_open,
+ .ioctl = ov5650_ioctl,
+ .release = ov5650_release,
+};
+
+static struct miscdevice ov5650_device = {
+ .minor = MISC_DYNAMIC_MINOR,
+ .name = "ov5650",
+ .fops = &ov5650_fileops,
+};
+
+static int ov5650_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ int err;
+
+ pr_info("ov5650: probing sensor.\n");
+
+ info = kzalloc(sizeof(struct ov5650_info), GFP_KERNEL);
+ if (!info) {
+ pr_err("ov5650: Unable to allocate memory!\n");
+ return -ENOMEM;
+ }
+
+ err = misc_register(&ov5650_device);
+ if (err) {
+ pr_err("ov5650: Unable to register misc device!\n");
+ kfree(info);
+ return err;
+ }
+
+ info->pdata = client->dev.platform_data;
+ info->i2c_client = client;
+
+ i2c_set_clientdata(client, info);
+ return 0;
+}
+
+static int ov5650_remove(struct i2c_client *client)
+{
+ struct ov5650_info *info;
+ info = i2c_get_clientdata(client);
+ misc_deregister(&ov5650_device);
+ kfree(info);
+ return 0;
+}
+
+static const struct i2c_device_id ov5650_id[] = {
+ { "ov5650", 0 },
+ { },
+};
+
+MODULE_DEVICE_TABLE(i2c, ov5650_id);
+
+static struct i2c_driver ov5650_i2c_driver = {
+ .driver = {
+ .name = "ov5650",
+ .owner = THIS_MODULE,
+ },
+ .probe = ov5650_probe,
+ .remove = ov5650_remove,
+ .id_table = ov5650_id,
+};
+
+static int __init ov5650_init(void)
+{
+ pr_info("ov5650 sensor driver loading\n");
+ return i2c_add_driver(&ov5650_i2c_driver);
+}
+
+static void __exit ov5650_exit(void)
+{
+ i2c_del_driver(&ov5650_i2c_driver);
+}
+
+module_init(ov5650_init);
+module_exit(ov5650_exit);
+
projects / firefly-linux-kernel-4.4.55.git / commitdiff