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Commit bcf7f995 authored by Helen Koike's avatar Helen Koike
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tmp: ov5647 / rockpi 4

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arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dts
+ 94
− 2
View file @ bcf7f995
......@@ -414,9 +414,65 @@
};
&i2c4 {
i2c-scl-rising-time-ns = <600>;
i2c-scl-falling-time-ns = <20>;
/// i2c-scl-rising-time-ns = <600>;
/// i2c-scl-falling-time-ns = <20>;
clock-frequency = <400000>;
status = "okay";
/*
rpicamv2: camera@10 {
compatible = "sony,imx219";
reg = <0x10>;
clocks = <&rpicamclk2>;
pinctrl-names = "default";
pinctrl-0 = <&enable>;
status = "disabled";
rpicamclk2: camera-clk {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <25000000>;
};
port {
csi1_out_2: endpoint {
remote-endpoint = <&csi1_ep1>;
clock-lanes = <0>;
data-lanes = <1 2>;
};
};
};
*/
rpicamv1: camera@36 {
compatible = "ovti,ov5647";
reg = <0x36>;
clocks = <&rpicamclk1>;
pinctrl-names = "default";
status = "okay";
/* CAM_GPIO is an enable GPIO and
* CAM_MCLK is actually controlling the red LED
*/
pinctrl-0 = <&enable>, <&camled>;
enable-gpios = <&gpio1 RK_PB5 GPIO_ACTIVE_HIGH>;
/* The camera module has an internal clock */
rpicamclk1: camera-clk {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <25000000>;
};
port {
csi1_out_1: endpoint {
remote-endpoint = <&csi1_ep1>;
clock-lanes = <0>;
data-lanes = <1 2>;
};
};
};
};
&i2s0 {
......@@ -482,6 +538,17 @@
rockchip,pins = <4 RK_PD1 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
cam_pins {
enable: enable-pins {
rockchip,pins =
<1 RK_PB5 RK_FUNC_GPIO &pcfg_pull_none>;
};
camled: cam_led_pins {
rockchip,pins =
<2 RK_PB3 RK_FUNC_GPIO &pcfg_pull_up>;
};
};
};
&pwm2 {
......@@ -610,3 +677,28 @@
&vopl_mmu {
status = "okay";
};
&i2c6 {
status = "okay";
};
&i2c4 {
};
&mipi_dphy_rx0 {
status = "okay";
};
&isp0 {
status = "okay";
ports {
port@0 {
csi1_ep1: endpoint@1 {
reg = <1>;
remote-endpoint = <&csi1_out_1>;
data-lanes = <1 2>;
};
};
};
};
drivers/media/i2c/Kconfig
+ 12
− 0
View file @ bcf7f995
......@@ -575,6 +575,18 @@ config VIDEO_IMX214
To compile this driver as a module, choose M here: the
module will be called imx214.
config VIDEO_IMX219
tristate "Sony IMX219 sensor support"
depends on GPIOLIB && I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
depends on MEDIA_CAMERA_SUPPORT
depends on V4L2_FWNODE
help
This is a Video4Linux2 sensor driver for the Sony
IMX214 camera.
To compile this driver as a module, choose M here: the
module will be called imx219.
config VIDEO_IMX258
tristate "Sony IMX258 sensor support"
depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
......
drivers/media/i2c/Makefile
+ 1
− 0
View file @ bcf7f995
......@@ -109,6 +109,7 @@ obj-$(CONFIG_VIDEO_ML86V7667) += ml86v7667.o
obj-$(CONFIG_VIDEO_OV2659) += ov2659.o
obj-$(CONFIG_VIDEO_TC358743) += tc358743.o
obj-$(CONFIG_VIDEO_IMX214) += imx214.o
obj-$(CONFIG_VIDEO_IMX219) += imx219.o
obj-$(CONFIG_VIDEO_IMX258) += imx258.o
obj-$(CONFIG_VIDEO_IMX274) += imx274.o
obj-$(CONFIG_VIDEO_IMX319) += imx319.o
......
drivers/media/i2c/ov5647.c
+ 507
− 135
View file @ bcf7f995
......@@ -32,26 +32,33 @@
#include <media/v4l2-fwnode.h>
#include <media/v4l2-image-sizes.h>
#include <media/v4l2-mediabus.h>
#include <media/v4l2-ctrls.h>
#define SENSOR_NAME "ov5647"
#define REG_NULL 0xffff
#define MIPI_CTRL00_CLOCK_LANE_GATE BIT(5)
#define MIPI_CTRL00_BUS_IDLE BIT(2)
#define MIPI_CTRL00_CLOCK_LANE_DISABLE BIT(0)
#define OV5647_SW_STANDBY 0x0100
#define OV5647_SW_RESET 0x0103
#define OV5647_REG_CHIPID_H 0x300A
#define OV5647_REG_CHIPID_L 0x300B
#define OV5640_REG_PAD_OUT 0x300D
#define OV5647_REG_CHIPID_H 0x300a
#define OV5647_REG_CHIPID_L 0x300b
#define OV5647_REG_PAD_OUT 0x300d
#define OV5647_REG_TIMING_DVPHO 0x3808
#define OV5647_REG_TIMING_DVPVO 0x380a
#define OV5647_REG_TIMING_HTS 0x380c
#define OV5647_REG_TIMING_VTS 0x380e
#define OV5647_REG_TIMING_TC_REG20 0x3820
#define OV5647_REG_TIMING_TC_REG21 0x3821
#define OV5647_REG_FRAME_OFF_NUMBER 0x4202
#define OV5647_REG_MIPI_CTRL00 0x4800
#define OV5647_REG_MIPI_CTRL14 0x4814
#define REG_TERM 0xfffe
#define VAL_TERM 0xfe
#define REG_DLY 0xffff
#define OV5647_ROW_START 0x01
#define OV5647_ROW_START_MIN 0
#define OV5647_ROW_START_MAX 2004
......@@ -77,6 +84,15 @@ struct regval_list {
u8 data;
};
struct ov5647_mode {
unsigned int width;
unsigned int height;
unsigned int max_fps;
unsigned int htot;
unsigned int vtot;
const struct regval_list *reg_list;
};
struct ov5647 {
struct v4l2_subdev sd;
struct media_pad pad;
......@@ -86,6 +102,10 @@ struct ov5647 {
unsigned int height;
int power_count;
struct clk *xclk;
struct v4l2_ctrl *pixel_rate;
const struct ov5647_mode *cur_mode;
struct v4l2_ctrl_handler ctrl_handler;
struct gpio_desc *enable_gpio;
};
static inline struct ov5647 *to_state(struct v4l2_subdev *sd)
......@@ -97,71 +117,34 @@ static struct regval_list sensor_oe_disable_regs[] = {
{0x3000, 0x00},
{0x3001, 0x00},
{0x3002, 0x00},
{REG_NULL, 0x00}
};
static struct regval_list sensor_oe_enable_regs[] = {
{0x3000, 0x0f},
{0x3001, 0xff},
{0x3002, 0xe4},
{REG_NULL, 0x00}
};
static struct regval_list ov5647_640x480[] = {
{0x0100, 0x00},
{0x0103, 0x01},
{0x3034, 0x08},
{0x3035, 0x21},
{0x3036, 0x46},
{0x303c, 0x11},
{0x3106, 0xf5},
{0x3821, 0x07},
{0x3820, 0x41},
{0x3827, 0xec},
static struct regval_list ov5647_init_regs[] = {
/* upstream */
{0x370c, 0x0f},
{0x3612, 0x59},
{0x3618, 0x00},
{0x5000, 0x06},
{0x5001, 0x01},
{0x5002, 0x41},
{0x5003, 0x08},
{0x5a00, 0x08},
{0x3000, 0x00},
{0x3001, 0x00},
{0x3002, 0x00},
{0x3016, 0x08},
{0x3017, 0xe0},
{0x3018, 0x44},
{0x301c, 0xf8},
{0x301d, 0xf0},
{0x3a18, 0x00},
{0x3a19, 0xf8},
{0x3c01, 0x80},
{0x3b07, 0x0c},
{0x380c, 0x07},
{0x380d, 0x68},
{0x380e, 0x03},
{0x380f, 0xd8},
{0x3814, 0x31},
{0x3815, 0x31},
{0x3708, 0x64},
{0x3709, 0x52},
{0x3808, 0x02},
{0x3809, 0x80},
{0x380a, 0x01},
{0x380b, 0xE0},
{0x3801, 0x00},
{0x3802, 0x00},
{0x3803, 0x00},
{0x3804, 0x0a},
{0x3805, 0x3f},
{0x3806, 0x07},
{0x3807, 0xa1},
{0x3811, 0x08},
{0x3813, 0x02},
{0x3630, 0x2e},
{0x3632, 0xe2},
{0x3633, 0x23},
{0x3634, 0x44},
{0x3636, 0x06},
{0x3620, 0x64},
{0x3621, 0xe0},
{0x3600, 0x37},
......@@ -175,12 +158,6 @@ static struct regval_list ov5647_640x480[] = {
{0x3f05, 0x02},
{0x3f06, 0x10},
{0x3f01, 0x0a},
{0x3a08, 0x01},
{0x3a09, 0x27},
{0x3a0a, 0x00},
{0x3a0b, 0xf6},
{0x3a0d, 0x04},
{0x3a0e, 0x03},
{0x3a0f, 0x58},
{0x3a10, 0x50},
{0x3a1b, 0x58},
......@@ -188,55 +165,271 @@ static struct regval_list ov5647_640x480[] = {
{0x3a11, 0x60},
{0x3a1f, 0x28},
{0x4001, 0x02},
{0x4004, 0x02},
{0x4000, 0x09},
{0x4837, 0x24},
{0x5001, 0x01}, /* auto white balance */
{0x5002, 0x41},
{0x3011, 0x62},
/* mipi */
{0x3016, 0x08},
{0x3017, 0xe0},
{0x3018, 0x44},
{0x3034, 0x08},
{0x3106, 0xf5},
{REG_NULL, 0x00}
};
static struct regval_list ov5647_640x480[] = {
{0x3035, 0x21},
{0x3036, 0x60},
{0x303c, 0x11},
{0x3821, 0x07},
{0x3820, 0x41},
{0x3827, 0xec}, /* ? */
{0x370c, 0x0f}, /* ? */
{0x3612, 0x59},
{0x3618, 0x00},
{0x301c, 0xf8}, /* ? */
{0x380c, 0x07}, /* 0768 */
{0x380d, 0x68},
{0x380e, 0x03}, /* 03d8 */
{0x380f, 0xd8},
{0x3814, 0x31},
{0x3815, 0x31},
{0x3708, 0x64},
{0x3709, 0x52},
{0x3808, 0x02}, /* width = 640 */
{0x3809, 0x80},
{0x380a, 0x01}, /* heigth = 480 */
{0x380b, 0xE0},
{0x3800, 0x00}, /* X Start */
{0x3801, 0x00},
{0x3802, 0x00},
{0x3803, 0x00},
{0x3804, 0x0a},
{0x3805, 0x3f},
{0x3806, 0x07},
{0x3807, 0xa1},
{0x3811, 0x08},
{0x3813, 0x02},
{0x3636, 0x06},
{0x3a08, 0x01},
{0x3a09, 0x27},
{0x3a0a, 0x00},
{0x3a0b, 0xf6},
{0x3a0d, 0x04},
{0x3a0e, 0x03},
{0x4004, 0x02},
{0x4837, 0x0b}, /* MIPI pclk period */
{0x4050, 0x6e},
{0x4051, 0x8f},
{0x0100, 0x01},
{REG_NULL, 0x00}
};
static struct regval_list ov5647_1280x960[] = {
{0x3035, 0x21}, /* PLL */
{0x3036, 0x60}, /* PLL */
{0x303c, 0x11}, /* PLL */
{0x3821, 0x07}, /* ISP mirror on, Sensor mirror on, H bin on */
{0x3820, 0x41}, /* ISP flip off, Sensor flip off, V bin on */
{0x3612, 0x59}, /* analog control */
{0x3618, 0x00}, /* analog control */
{0x3814, 0x31}, /* X INC */
{0x3815, 0x31}, /* Y INC */
{0x3708, 0x64}, /* analog control */
{0x3709, 0x52}, /* analog control */
{0x3800, 0x00},
{0x3801, 0x00},
{0x3802, 0x00},
{0x3803, 0x06},
{0x3804, 0x0a},
{0x3805, 0x3f},
{0x3806, 0x07},
{0x3807, 0x9d},
/* banding filter */
{0x3a08, 0x01}, /* B50 */
{0x3a09, 0x27}, /* B50 */
{0x3a0a, 0x00}, /* B60 */
{0x3a0b, 0xf6}, /* B60 */
{0x3a0d, 0x04}, /* B60 max */
{0x3a0e, 0x03}, /* B50 max */
{0x4004, 0x02}, /* black line number */
{0x4837, 0x0b}, /* MIPI pclk period */
{REG_NULL, 0x00}
};
static struct regval_list ov5647_2592x1944[] = {
{0x3035, 0x21},
{0x3036, 0x70},
{0x303c, 0x11},
{0x3612, 0x5b},
{0x3618, 0x04},
{0x380c, 0x0a},
{0x380d, 0x8c},
{0x380e, 0x07},
{0x380f, 0xb6},
{0x3814, 0x11},
{0x3815, 0x11},
{0x3708, 0x64},
{0x3709, 0x12},
{0x3808, 0x0a},
{0x3809, 0x20},
{0x380a, 0x07},
{0x380b, 0x98},
{0x3800, 0x00},
{0x3801, 0x00},
{0x3802, 0x00},
{0x3803, 0x04},
{0x3804, 0x0a},
{0x3805, 0x33},
{0x3806, 0x07},
{0x3807, 0xa3},
{0x3a08, 0x01},
{0x3a09, 0x28},
{0x3a0a, 0x00},
{0x3a0b, 0xf6},
{0x3a0d, 0x08},
{0x3a0e, 0x06},
{0x4004, 0x04},
{0x4837, 0x0b}, /* MIPI pclk period */
{REG_NULL, 0x00}
};
static const struct ov5647_mode supported_modes[] = {
{
.width = 1280,
.height = 960,
.max_fps = 45,
.htot = 1896,
.vtot = 984,
.reg_list = ov5647_1280x960,
},
{
.width = 2592,
.height = 1944,
.max_fps = 15,
.htot = 2592,
.vtot = 1944,
.reg_list = ov5647_2592x1944,
},
};
static int ov5647_write(struct v4l2_subdev *sd, u16 reg, u8 val)
{
int ret;
unsigned char data[3] = { reg >> 8, reg & 0xff, val};
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct i2c_msg msg;
u8 buf[3];
int ret;
ret = i2c_master_send(client, data, 3);
if (ret < 0)
dev_dbg(&client->dev, "%s: i2c write error, reg: %x\n",
__func__, reg);
buf[0] = reg >> 8;
buf[1] = reg & 0xff;
buf[2] = val;
return ret;
msg.addr = client->addr;
msg.flags = client->flags;
msg.buf = buf;
msg.len = sizeof(buf);
ret = i2c_transfer(client->adapter, &msg, 1);
if (ret < 0) {
dev_err(&client->dev, "%s: error: reg=%x, val=%x\n",
__func__, reg, val);
return ret;
}
return 0;
}
static int ov5647_read(struct v4l2_subdev *sd, u16 reg, u8 *val)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct i2c_msg msg[2];
u8 buf[2];
int ret;
unsigned char data_w[2] = { reg >> 8, reg & 0xff };
buf[0] = reg >> 8;
buf[1] = reg & 0xff;
msg[0].addr = client->addr;
msg[0].flags = client->flags;
msg[0].buf = buf;
msg[0].len = sizeof(buf);
msg[1].addr = client->addr;
msg[1].flags = client->flags | I2C_M_RD;
msg[1].buf = buf;
msg[1].len = 1;
ret = i2c_transfer(client->adapter, msg, 2);
if (ret < 0) {
dev_err(&client->dev, "%s: error: reg=%x\n",
__func__, reg);
return ret;
}
*val = buf[0];
return 0;
}
static int ov5647_read16(struct v4l2_subdev *sd, u16 reg, u16 *val)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct i2c_msg msg[4];
u8 buflo[2], bufhi[2];
int ret;
buflo[0] = reg >> 8;
buflo[1] = reg & 0xff;
bufhi[0] = (reg + 1) >> 8;
bufhi[1] = (reg + 1) & 0xff;
msg[0].addr = client->addr;
msg[0].flags = client->flags;
msg[0].buf = buflo;
msg[0].len = sizeof(buflo);
msg[1].addr = client->addr;
msg[1].flags = client->flags | I2C_M_RD;
msg[1].buf = buflo;
msg[1].len = 1;
ret = i2c_master_send(client, data_w, 2);
msg[2].addr = client->addr;
msg[2].flags = client->flags;
msg[2].buf = bufhi;
msg[2].len = sizeof(bufhi);
msg[3].addr = client->addr;
msg[3].flags = client->flags | I2C_M_RD;
msg[3].buf = bufhi;
msg[3].len = 1;
ret = i2c_transfer(client->adapter, msg, 4);
if (ret < 0) {
dev_dbg(&client->dev, "%s: i2c write error, reg: %x\n",
dev_err(&client->dev, "%s: error: reg=%x\n",
__func__, reg);
return ret;
}
ret = i2c_master_recv(client, val, 1);
if (ret < 0)
dev_dbg(&client->dev, "%s: i2c read error, reg: %x\n",
__func__, reg);
*val = ((u16)bufhi[0] << 8) | (u16)buflo;
return 0;
}
return ret;
static int ov5647_write16(struct v4l2_subdev *sd, u16 reg, u16 val)
{
int ret;
ret = ov5647_write(sd, reg, val >> 8);
if (ret)
return ret;
return ov5647_write(sd, reg + 1, val & 0xff);
}
static int ov5647_write_array(struct v4l2_subdev *sd,
struct regval_list *regs, int array_size)
const struct regval_list *regs)
{
int i, ret;
for (i = 0; i < array_size; i++) {
for (i = 0; regs[i].addr != REG_NULL; i++) {
ret = ov5647_write(sd, regs[i].addr, regs[i].data);
if (ret < 0)
return ret;
......@@ -245,6 +438,51 @@ static int ov5647_write_array(struct v4l2_subdev *sd,
return 0;
}
static int ov5647_mod_reg(struct v4l2_subdev *sd, u16 reg,
u8 mask, u8 val)
{
u8 readval;
int ret;
ret = ov5647_read(sd, reg, &readval);
if (ret)
return ret;
readval &= ~mask;
val &= mask;
val |= readval;
return ov5647_write(sd, reg, val);
}
static int ov5647_sw_reset(struct v4l2_subdev *sd)
{
int ret;
ret = ov5647_write(sd, OV5647_SW_RESET, 0x01);
if (ret < 0)
return ret;
msleep(5);
return 0;
}
static int ov5647_set_sw_standby(struct v4l2_subdev *sd, bool standby)
{
int ret;
u8 rdval;
ret = ov5647_read(sd, OV5647_SW_STANDBY, &rdval);
if (ret < 0)
return ret;
if (standby)
rdval &= ~0x01;
else
rdval |= 0x01;
return ov5647_write(sd, OV5647_SW_STANDBY, rdval);
}
static int ov5647_set_virtual_channel(struct v4l2_subdev *sd, int channel)
{
u8 channel_id;
......@@ -270,13 +508,21 @@ static int ov5647_stream_on(struct v4l2_subdev *sd)
if (ret < 0)
return ret;
return ov5647_write(sd, OV5640_REG_PAD_OUT, 0x00);
ret = ov5647_write(sd, OV5647_REG_PAD_OUT, 0x00);
if (ret < 0)
return ret;
return ov5647_set_sw_standby(sd, false);
}
static int ov5647_stream_off(struct v4l2_subdev *sd)
{
int ret;
ret = ov5647_set_sw_standby(sd, true);
if (ret < 0)
return ret;
ret = ov5647_write(sd, OV5647_REG_MIPI_CTRL00, MIPI_CTRL00_CLOCK_LANE_GATE
| MIPI_CTRL00_BUS_IDLE | MIPI_CTRL00_CLOCK_LANE_DISABLE);
if (ret < 0)
......@@ -286,57 +532,62 @@ static int ov5647_stream_off(struct v4l2_subdev *sd)
if (ret < 0)
return ret;
return ov5647_write(sd, OV5640_REG_PAD_OUT, 0x01);
return ov5647_write(sd, OV5647_REG_PAD_OUT, 0x01);
}
static int set_sw_standby(struct v4l2_subdev *sd, bool standby)
static int ov5647_set_timings(struct v4l2_subdev *sd,
const struct ov5647_mode *mode)
{
int ret;
u8 rdval;
ret = ov5647_read(sd, OV5647_SW_STANDBY, &rdval);
ret = ov5647_write16(sd, OV5647_REG_TIMING_DVPHO, mode->width);
if (ret < 0)
return ret;
if (standby)
rdval &= ~0x01;
else
rdval |= 0x01;
ret = ov5647_write16(sd, OV5647_REG_TIMING_DVPVO, mode->height);
if (ret < 0)
return ret;
return ov5647_write(sd, OV5647_SW_STANDBY, rdval);
ret = ov5647_write16(sd, OV5647_REG_TIMING_HTS, mode->htot);
if (ret < 0)
return ret;
return ov5647_write16(sd, OV5647_REG_TIMING_VTS, mode->vtot);
}
static int __sensor_init(struct v4l2_subdev *sd)
{
int ret;
u8 resetval, rdval;
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct ov5647 *sensor = to_state(sd);
int ret;
ret = ov5647_read(sd, OV5647_SW_STANDBY, &rdval);
ret = ov5647_set_sw_standby(sd, true);
if (ret < 0)
return ret;
ret = ov5647_write_array(sd, ov5647_640x480,
ARRAY_SIZE(ov5647_640x480));
ret = ov5647_sw_reset(sd);
if (ret < 0)
return ret;
ret = ov5647_write_array(sd, ov5647_init_regs);
if (ret < 0) {
dev_err(&client->dev, "write sensor default regs error\n");
return ret;
}
ret = ov5647_set_virtual_channel(sd, 0);
if (ret < 0)
ret = ov5647_write_array(sd, sensor->cur_mode->reg_list);
if (ret < 0) {
dev_err(&client->dev, "write sensor mode regs error\n");
return ret;
}
ret = ov5647_read(sd, OV5647_SW_STANDBY, &resetval);
ret = ov5647_set_timings(sd, sensor->cur_mode);
if (ret < 0)
return ret;
if (!(resetval & 0x01)) {
dev_err(&client->dev, "Device was in SW standby");
ret = ov5647_write(sd, OV5647_SW_STANDBY, 0x01);
if (ret < 0)
return ret;
}
ret = ov5647_set_virtual_channel(sd, 0);
if (ret < 0)
return ret;
/*
* stream off to make the clock lane into LP-11 state.
......@@ -361,8 +612,10 @@ static int ov5647_sensor_power(struct v4l2_subdev *sd, int on)
goto out;
}
ret = ov5647_write_array(sd, sensor_oe_enable_regs,
ARRAY_SIZE(sensor_oe_enable_regs));
gpiod_set_value_cansleep(ov5647->enable_gpio, 1);
msleep(20);
ret = ov5647_write_array(sd, sensor_oe_enable_regs);
if (ret < 0) {
clk_disable_unprepare(ov5647->xclk);
dev_err(&client->dev,
......@@ -380,18 +633,12 @@ static int ov5647_sensor_power(struct v4l2_subdev *sd, int on)
} else if (!on && ov5647->power_count == 1) {
dev_dbg(&client->dev, "OV5647 power off\n");
ret = ov5647_write_array(sd, sensor_oe_disable_regs,
ARRAY_SIZE(sensor_oe_disable_regs));
ret = ov5647_write_array(sd, sensor_oe_disable_regs);
if (ret < 0)
dev_dbg(&client->dev, "disable oe failed\n");
ret = set_sw_standby(sd, true);
if (ret < 0)
dev_dbg(&client->dev, "soft stby failed\n");
clk_disable_unprepare(ov5647->xclk);
gpiod_set_value_cansleep(ov5647->enable_gpio, 0);
}
/* Update the power count. */
......@@ -451,6 +698,91 @@ static const struct v4l2_subdev_video_ops ov5647_subdev_video_ops = {
.s_stream = ov5647_s_stream,
};
static int ov5647_get_reso_dist(const struct ov5647_mode *mode,
struct v4l2_mbus_framefmt *framefmt)
{
return abs(mode->width - framefmt->width) +
abs(mode->height - framefmt->height);
}
static const struct ov5647_mode *
ov5647_find_best_fit(struct v4l2_subdev_format *fmt)
{
struct v4l2_mbus_framefmt *framefmt = &fmt->format;
int dist;
int cur_best_fit = 0;
int cur_best_fit_dist = -1;
int i;
for (i = 0; i < ARRAY_SIZE(supported_modes); i++) {
dist = ov5647_get_reso_dist(&supported_modes[i], framefmt);
if (cur_best_fit_dist == -1 || dist < cur_best_fit_dist) {
cur_best_fit_dist = dist;
cur_best_fit = i;
}
}
return &supported_modes[cur_best_fit];
}
static int ov5647_set_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt)
{
struct ov5647 *ov5647 = to_state(sd);
const struct ov5647_mode *mode;
s64 pixel_rate;
int ret = 0;
mutex_lock(&ov5647->lock);
mode = ov5647_find_best_fit(fmt);
fmt->format.code = MEDIA_BUS_FMT_SBGGR8_1X8;
fmt->format.width = mode->width;
fmt->format.height = mode->height;
fmt->format.field = V4L2_FIELD_NONE;
if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
*v4l2_subdev_get_try_format(sd, cfg, fmt->pad) = fmt->format;
} else {
ov5647->cur_mode = mode;
pixel_rate = mode->vtot * mode->htot * mode->max_fps;
ret = v4l2_ctrl_s_ctrl_int64(ov5647->pixel_rate,
pixel_rate);
if (ret < 0)
goto err_unlock;
pr_info("new mode is %dx%d\n", mode->width, mode->height);
pr_info("pixel rate is now %lld\n", pixel_rate);
}
err_unlock:
mutex_unlock(&ov5647->lock);
return ret;
}
static int ov5647_get_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt)
{
struct ov5647 *ov5647 = to_state(sd);
const struct ov5647_mode *mode = ov5647->cur_mode;
mutex_lock(&ov5647->lock);
if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
fmt->format = *v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
} else {
fmt->format.width = mode->width;
fmt->format.height = mode->height;
fmt->format.code = MEDIA_BUS_FMT_SBGGR8_1X8;
fmt->format.field = V4L2_FIELD_NONE;
}
mutex_unlock(&ov5647->lock);
return 0;
}
static int ov5647_enum_mbus_code(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_mbus_code_enum *code)
......@@ -463,8 +795,29 @@ static int ov5647_enum_mbus_code(struct v4l2_subdev *sd,
return 0;
}
static int ov5647_enum_frame_sizes(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_frame_size_enum *fse)
{
if (fse->index >= ARRAY_SIZE(supported_modes))
return -EINVAL;
if (fse->code != MEDIA_BUS_FMT_SBGGR8_1X8)
return -EINVAL;
fse->min_width = supported_modes[fse->index].width;
fse->max_width = supported_modes[fse->index].width;
fse->max_height = supported_modes[fse->index].height;
fse->min_height = supported_modes[fse->index].height;
return 0;
}
static const struct v4l2_subdev_pad_ops ov5647_subdev_pad_ops = {
.enum_mbus_code = ov5647_enum_mbus_code,
.enum_frame_size = ov5647_enum_frame_sizes,
.get_fmt = ov5647_get_fmt,
.set_fmt = ov5647_set_fmt,
};
static const struct v4l2_subdev_ops ov5647_subdev_ops = {
......@@ -475,33 +828,23 @@ static const struct v4l2_subdev_ops ov5647_subdev_ops = {
static int ov5647_detect(struct v4l2_subdev *sd)
{
u8 read;
int ret;
struct i2c_client *client = v4l2_get_subdevdata(sd);
u16 chip_id;
int ret;
ret = ov5647_write(sd, OV5647_SW_RESET, 0x01);
if (ret < 0)
return ret;
ret = ov5647_read(sd, OV5647_REG_CHIPID_H, &read);
if (ret < 0)
return ret;
if (read != 0x56) {
dev_err(&client->dev, "ID High expected 0x56 got %x", read);
ret = ov5647_read16(sd, OV5647_REG_CHIPID_H, &chip_id);
if (ret) {
dev_err(&client->dev, "%s: failed to read chip identifier\n",
__func__);
return -ENODEV;
}
ret = ov5647_read(sd, OV5647_REG_CHIPID_L, &read);
if (ret < 0)
return ret;
if (read != 0x47) {
dev_err(&client->dev, "ID Low expected 0x47 got %x", read);
return -ENODEV;
if (chip_id != 0x5647) {
dev_err(&client->dev, "%s: wrong chip identifier, expected 0x5647, got 0x%x\n",
__func__, chip_id);
ret = -ENXIO;
}
return ov5647_write(sd, OV5647_SW_RESET, 0x00);
return 0;
}
static int ov5647_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
......@@ -532,7 +875,7 @@ static const struct v4l2_subdev_internal_ops ov5647_subdev_internal_ops = {
static int ov5647_parse_dt(struct device_node *np)
{
struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = 0 };
struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = V4L2_MBUS_CSI2_DPHY };
struct device_node *ep;
int ret;
......@@ -544,6 +887,7 @@ static int ov5647_parse_dt(struct device_node *np)
ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep), &bus_cfg);
of_node_put(ep);
return ret;
}
......@@ -552,14 +896,16 @@ static int ov5647_probe(struct i2c_client *client,
{
struct device *dev = &client->dev;
struct ov5647 *sensor;
int ret;
struct v4l2_subdev *sd;
struct v4l2_ctrl_handler *handler;
struct device_node *np = client->dev.of_node;
u32 xclk_freq;
int ret;
sensor = devm_kzalloc(dev, sizeof(*sensor), GFP_KERNEL);
if (!sensor)
return -ENOMEM;
sensor->cur_mode = &supported_modes[0];
if (IS_ENABLED(CONFIG_OF) && np) {
ret = ov5647_parse_dt(np);
......@@ -582,28 +928,54 @@ static int ov5647_probe(struct i2c_client *client,
return -EINVAL;
}
sensor->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_HIGH);
if (IS_ERR(sensor->enable_gpio)) {
dev_err(dev, "cannot get enable gpio\n");
return PTR_ERR(sensor->enable_gpio);
}
msleep(20);
mutex_init(&sensor->lock);
sd = &sensor->sd;
v4l2_i2c_subdev_init(sd, client, &ov5647_subdev_ops);
handler = &sensor->ctrl_handler;
ret = v4l2_ctrl_handler_init(handler, 1);
if (ret)
return ret;
sensor->pixel_rate = v4l2_ctrl_new_std(handler, NULL,
V4L2_CID_PIXEL_RATE,
1, INT_MAX, 1, 1);
sensor->sd.ctrl_handler = handler;
sensor->sd.internal_ops = &ov5647_subdev_internal_ops;
sensor->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
sensor->pad.flags = MEDIA_PAD_FL_SOURCE;
sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
ret = media_entity_pads_init(&sd->entity, 1, &sensor->pad);
if (ret < 0)
if (ret < 0) {
dev_err(dev, "cannot register media entity\n");
goto mutex_remove;
}
ret = ov5647_detect(sd);
ret = ov5647_sw_reset(sd);
if (ret < 0)
return ret;
ret = ov5647_detect(sd);
if (ret < 0) {
dev_err(&client->dev, "not detected!");
goto error;
}
/* TODO: power off here */
ret = v4l2_async_register_subdev(sd);
if (ret < 0)
goto error;
dev_dbg(dev, "OmniVision OV5647 camera driver probed\n");
dev_info(dev, "OV5647 detected at address 0x%02x\n", client->addr);
return 0;
error:
media_entity_cleanup(&sd->entity);
......
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