851 lines
19 KiB
C
Executable file
851 lines
19 KiB
C
Executable file
/*
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* A V4L2 driver for superpix sp2508 cameras.
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*
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*/
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/i2c.h>
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#include <linux/delay.h>
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#include <linux/videodev2.h>
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#include <linux/clk.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-chip-ident.h>
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#include <media/v4l2-mediabus.h>
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#include <linux/io.h>
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#include "camera.h"
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#include "sensor_helper.h"
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MODULE_AUTHOR("Chomoly");
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MODULE_DESCRIPTION("A low-level driver for superpix sp2508 sensors");
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MODULE_LICENSE("GPL");
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//for internel driver debug
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#define DEV_DBG_EN 0
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#if(DEV_DBG_EN == 1)
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#define vfe_dev_dbg(x,arg...) printk("[sp2508]"x,##arg)
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#else
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#define vfe_dev_dbg(x,arg...)
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#endif
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#define vfe_dev_err(x,arg...) printk("[sp2508]"x,##arg)
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#define vfe_dev_print(x,arg...) printk("[sp2508]"x,##arg)
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#define LOG_ERR_RET(x) { \
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int ret; \
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ret = x; \
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if(ret < 0) {\
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vfe_dev_err("error at %s\n",__func__); \
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return ret; \
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} \
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}
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//define module timing
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#define MCLK (24*1000*1000)
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#define VREF_POL V4L2_MBUS_VSYNC_ACTIVE_HIGH
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#define HREF_POL V4L2_MBUS_HSYNC_ACTIVE_HIGH
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#define CLK_POL V4L2_MBUS_PCLK_SAMPLE_RISING
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//#define CLK_POL V4L2_MBUS_PCLK_SAMPLE_FALLING
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#define V4L2_IDENT_SENSOR 0x2508
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/*
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* Our nominal (default) frame rate.
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*/
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#define I2C_ADDR (0x78)
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#define SENSOR_NAME "sp2508"
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static struct v4l2_subdev *glb_sd;
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static int sensor_s_exp_gain(struct v4l2_subdev *sd, struct sensor_exp_gain * exp_gain);
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/*
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* Information we maintain about a known sensor.
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*/
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struct sensor_format_struct; /* coming later */
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struct cfg_array { /* coming later */
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struct regval_list * regs;
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int size;
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};
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static inline struct sensor_info *to_state(struct v4l2_subdev *sd)
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{
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return container_of(sd, struct sensor_info, sd);
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}
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/*
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* The default register settings
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*
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*/
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static struct regval_list sensor_default_regs[] = {
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{0xfd,0x00},//
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{0x1b,0x00},//
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{0x1c,0x00},//
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{0x1e,0x95},//
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{0x35,0x20},// ;pll bias
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{0x2f,0x10},//3b/*08*/},// ;pll clk 60M
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{0x34,0x01},//01},
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{0xfd,0x01},//
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{0x03,0x02},// ;exp time, 3 base
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{0x04,0x2b},//
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{0x06,0x08},// ;vblank
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{0x24,0x60},// ;pga gain 6x
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{0x01,0x01},// ;enable reg write
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{0x2b,0xc5},// ;readout vref
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{0x2e,0x20},// ;dclk delay
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{0x79,0x42},// ;p39 p40
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{0x85,0x0f},// ;p51
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{0x09,0x03},// ;hblank
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{0x0a,0x00},//
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{0x1e,0x82},//
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{0x21,0xef},// ;pcp tx 4.05v
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{0x25,0xf2},// ;reg dac 2.7v, enable bl_en,vbl 1.4v
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{0x26,0x00},// ;vref2 1v, disable ramp driver
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{0x2a,0xea},// ;bypass dac res, adc range 0.745, vreg counter 0.9
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{0x2c,0xf0},// ;high 8bit, pldo 2.7v
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{0x8a,0x55},// ;pixel bias 1uA
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{0x8b,0x55},//
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{0x19,0xf3},// ;icom1 1.7u, icom2 0.6u
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{0x3c,0x02},//
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{0x0e,0x04},// ;4 sample
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{0x0f,0x04},//
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{0x11,0x60},// ;rst num
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{0xd0,0x00},// ;disable boost
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{0x55,0x20},//
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{0x58,0x4d},//
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{0x5d,0x15},//
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{0x5e,0x05},//
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{0x64,0x40},//
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{0x65,0x00},//
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{0x66,0x66},//
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{0x67,0x00},//
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{0x68,0x68},//
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{0x72,0x70},//
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{0x75,0x60},//
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{0xfb,0x25},//
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{0xfd,0x02},// ;raw data digital gain
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{0x00,0x84},//
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{0x01,0x84},//
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{0x03,0x84},//
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{0x04,0x84},//
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};
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static struct regval_list sensor_uxga_regs[] = { //UXGA: 1600*1200
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{0xfd,0x00},
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{0x1b,0x00},
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{0x1c,0x00},
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{0x30,0x05},
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{0x1e,0x55},
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{0xfd,0x01},
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{0x31,0x00},
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{0x0d,0x00},//add
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{0x1e,0x8b},
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{0x01,0x01},
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};
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static struct regval_list sensor_720p_regs[] = { //1280*720
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{0xfd,0x00},
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{0x1b,0x00},
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{0x1c,0x00},
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{0x30,0x05},
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{0xfd,0x01},
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{0x31,0x10},
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{0x01,0x01},
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};
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static struct regval_list sensor_sxga_regs[] = { //SXGA: 1280*960
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};
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static struct regval_list sensor_fmt_raw[] = {
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};
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static int sensor_s_exp_gain(struct v4l2_subdev *sd, struct sensor_exp_gain *exp_gain)
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{
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int exp_val, gain_val;
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unsigned char explow=0,expmid=0;//,exphigh=0,vts_diff_low,vts_diff_high;
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unsigned char gainlow=0;//,gainhigh=0;
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struct sensor_info *info = to_state(sd);
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exp_val = exp_gain->exp_val;
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gain_val = exp_gain->gain_val;
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if(gain_val<1*16)
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gain_val=16;
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if(gain_val>64*16-1)
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gain_val=64*16-1;
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if(exp_val>0xfffff)
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exp_val=0xfffff;
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gainlow=(unsigned char)(gain_val&0xff);
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expmid = (unsigned char) ( (0x0ff000&exp_val)>>12);
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explow = (unsigned char) ( (0x000ff0&exp_val)>>4);
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sensor_write(sd, 0xfd, 0x01);
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sensor_write(sd, 0x24, gainlow*2);
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sensor_write(sd, 0x03, expmid);
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sensor_write(sd, 0x04, explow);
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sensor_write(sd, 0x01, 0x01);
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printk("exp=%d,gain=%d\n",exp_val,gainlow*2);
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info->exp = exp_val;
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info->gain = gain_val;
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return 0;
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}
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static int sensor_g_exp(struct v4l2_subdev *sd, __s32 *value)
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{
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struct sensor_info *info = to_state(sd);
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*value = info->exp;
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vfe_dev_dbg("sensor_get_exposure = %d\n", info->exp);
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return 0;
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}
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static int sensor_s_exp(struct v4l2_subdev *sd, unsigned int exp_val)
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{
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unsigned char expmid=0,explow=0;
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struct sensor_info *info = to_state(sd);
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sensor_write(sd, 0xfd, 0x01);
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expmid = (unsigned char) ( (0x0ff000&exp_val)>>12);
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explow = (unsigned char) ( (0x000ff0&exp_val)>>4);
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sensor_write(sd, 0x03, expmid);
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sensor_write(sd, 0x04, explow);
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sensor_write(sd, 0x01, 0x01);
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info->exp = exp_val;
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return 0;
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}
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static int sensor_g_gain(struct v4l2_subdev *sd, __s32 *value)
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{
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struct sensor_info *info = to_state(sd);
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*value = info->gain;
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vfe_dev_dbg("sensor_get_gain = %d\n", info->gain);
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return 0;
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}
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static int sensor_s_gain(struct v4l2_subdev *sd, int gain_val)
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{
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unsigned char gainlow;
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gainlow=(unsigned char)(gain_val&0xff);
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sensor_write(sd, 0xfd, 0x01);//enter group write
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sensor_write(sd, 0x24, gainlow*2);
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sensor_write(sd, 0x01, 0x01);//end group write
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printk("sp2508 sensor gain value is %d\n",gain_val);
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return 0;
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}
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static int sensor_s_sw_stby(struct v4l2_subdev *sd, int on_off)
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{
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int ret;
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data_type rdval;
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ret=sensor_read(sd, 0xfc, &rdval);
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if(ret!=0)
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return ret;
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if(on_off==CSI_GPIO_HIGH)//sw stby on
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{
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ret=sensor_write(sd, 0xfc, rdval | 0x01);
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sensor_write(sd, 0xf2, 0x00);
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}
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else//sw stby off
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{
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sensor_write(sd, 0xfc, rdval & 0xfe);
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ret=sensor_write(sd, 0xf2, 0xff);
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}
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return ret;
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//return 0;
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}
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/*
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* Stuff that knows about the sensor.
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*/
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static int sensor_power(struct v4l2_subdev *sd, int on)
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{
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cci_lock(sd);
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switch(on)
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{
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case CSI_SUBDEV_STBY_ON:
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vfe_dev_dbg("CSI_SUBDEV_STBY_ON\n");
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vfe_gpio_write(sd,RESET,CSI_GPIO_LOW);
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usleep_range(30000,31000);
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vfe_set_mclk(sd,OFF);
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usleep_range(10000,12000);
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break;
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case CSI_SUBDEV_STBY_OFF:
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vfe_dev_dbg("CSI_SUBDEV_STBY_OFF\n");
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vfe_set_mclk_freq(sd,MCLK);
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vfe_set_mclk(sd,ON);
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usleep_range(30000,31000);
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vfe_gpio_write(sd,RESET,CSI_GPIO_HIGH);
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usleep_range(30000,31000);
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break;
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case CSI_SUBDEV_PWR_ON:
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vfe_dev_dbg("CSI_SUBDEV_PWR_ON\n");
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vfe_gpio_set_status(sd,PWDN,1);//set the gpio to output
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vfe_gpio_set_status(sd,RESET,1);//set the gpio to output
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vfe_gpio_write(sd,PWDN,CSI_GPIO_LOW);
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vfe_gpio_write(sd,RESET,CSI_GPIO_LOW);
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usleep_range(1000,1200);
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vfe_set_mclk_freq(sd,MCLK);
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vfe_set_mclk(sd,ON);
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usleep_range(10000,12000);
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vfe_gpio_write(sd,POWER_EN,CSI_GPIO_HIGH);
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vfe_set_pmu_channel(sd,AVDD,ON);
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vfe_set_pmu_channel(sd,IOVDD,ON);
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vfe_set_pmu_channel(sd,DVDD,ON);
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vfe_set_pmu_channel(sd,AFVDD,ON);
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vfe_gpio_write(sd,PWDN,CSI_GPIO_HIGH);
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usleep_range(10000,12000);
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vfe_gpio_write(sd,PWDN,CSI_GPIO_LOW);
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usleep_range(10000,12000);
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vfe_gpio_write(sd,RESET,CSI_GPIO_HIGH);
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usleep_range(30000,31000);
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break;
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case CSI_SUBDEV_PWR_OFF:
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vfe_dev_dbg("CSI_SUBDEV_PWR_OFF\n");
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vfe_gpio_write(sd,PWDN,CSI_GPIO_HIGH);
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usleep_range(10000,12000);
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vfe_gpio_write(sd,RESET,CSI_GPIO_LOW);
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usleep_range(10000,12000);
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vfe_gpio_write(sd,POWER_EN,CSI_GPIO_LOW);
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vfe_set_pmu_channel(sd,AFVDD,OFF);
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vfe_set_pmu_channel(sd,DVDD,OFF);
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vfe_set_pmu_channel(sd,AVDD,OFF);
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vfe_set_pmu_channel(sd,IOVDD,OFF);
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usleep_range(10000,12000);
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vfe_set_mclk(sd,OFF);
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vfe_gpio_set_status(sd,RESET,0);//set the gpio to input
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vfe_gpio_set_status(sd,PWDN,0);//set the gpio to input
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break;
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default:
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return -EINVAL;
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}
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cci_unlock(sd);
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return 0;
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}
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static int sensor_reset(struct v4l2_subdev *sd, u32 val)
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{
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switch(val)
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{
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case 0:
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vfe_gpio_write(sd,RESET,CSI_GPIO_HIGH);
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usleep_range(10000,12000);
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break;
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case 1:
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vfe_gpio_write(sd,RESET,CSI_GPIO_LOW);
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usleep_range(10000,12000);
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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static int sensor_detect(struct v4l2_subdev *sd)
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{
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data_type rdval;
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LOG_ERR_RET(sensor_read(sd, 0x02, &rdval))
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// vfe_dev_dbg("0x0000=0x%x\n",rdval);
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if(rdval != 0x25)
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return -ENODEV;
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LOG_ERR_RET(sensor_read(sd, 0x03, &rdval))
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// vfe_dev_dbg("0x0001=0x%x\n",rdval);
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if(rdval != 0x08)
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return -ENODEV;
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return 0;
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}
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static int sensor_init(struct v4l2_subdev *sd, u32 val)
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{
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int ret;
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struct sensor_info *info = to_state(sd);
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vfe_dev_dbg("sensor_init\n");
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/*Make sure it is a target sensor*/
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// ret = sensor_detect(sd);
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// if (ret) {
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// vfe_dev_err("chip found is not an target chip.\n");
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// return ret;
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// }
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vfe_get_standby_mode(sd,&info->stby_mode);
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if((info->stby_mode == HW_STBY || info->stby_mode == SW_STBY) \
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&& info->init_first_flag == 0) {
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vfe_dev_print("stby_mode and init_first_flag = 0\n");
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return 0;
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}
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info->focus_status = 0;
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info->low_speed = 0;
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info->width = UXGA_WIDTH;
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info->height = UXGA_HEIGHT;
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info->hflip = 0;
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info->vflip = 0;
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info->gain = 0;
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info->tpf.numerator = 1;
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info->tpf.denominator = 30; /* 30fps */
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ret = sensor_write_array(sd, sensor_default_regs, ARRAY_SIZE(sensor_default_regs));
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if(ret < 0) {
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vfe_dev_err("write sensor_default_regs error\n");
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return ret;
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}
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if(info->stby_mode == 0)
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info->init_first_flag = 0;
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info->preview_first_flag = 1;
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return 0;
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}
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static long sensor_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
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{
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int ret=0;
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struct sensor_info *info = to_state(sd);
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switch(cmd) {
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case GET_CURRENT_WIN_CFG:
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if(info->current_wins != NULL)
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{
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memcpy( arg,
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info->current_wins,
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sizeof(struct sensor_win_size) );
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ret=0;
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}
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else
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{
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vfe_dev_err("empty wins!\n");
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ret=-1;
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}
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break;
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case SET_FPS:
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break;
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case ISP_SET_EXP_GAIN:
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sensor_s_exp_gain(sd, (struct sensor_exp_gain *)arg);
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break;
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default:
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return -EINVAL;
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}
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return ret;
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}
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/*
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* Store information about the video data format.
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*/
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static struct sensor_format_struct {
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__u8 *desc;
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//__u32 pixelformat;
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enum v4l2_mbus_pixelcode mbus_code;
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struct regval_list *regs;
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int regs_size;
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int bpp; /* Bytes per pixel */
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}sensor_formats[] = {
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{
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.desc = "Raw RGB Bayer",
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.mbus_code = V4L2_MBUS_FMT_SBGGR8_1X8,
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.regs = sensor_fmt_raw,
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.regs_size = ARRAY_SIZE(sensor_fmt_raw),
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.bpp = 1
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},
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};
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#define N_FMTS ARRAY_SIZE(sensor_formats)
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/*
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* Then there is the issue of window sizes. Try to capture the info here.
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*/
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static struct sensor_win_size sensor_win_sizes[] = {
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/* UXGA */
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{
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.width = UXGA_WIDTH,
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.height = UXGA_HEIGHT,
|
|
.hoffset = 0,
|
|
.voffset = 0,
|
|
.hts = 3205,
|
|
.vts = 1224,
|
|
.pclk = 82*1000*1000,
|
|
.fps_fixed = 1,
|
|
.bin_factor = 1,
|
|
.intg_min = 1<<4,
|
|
.intg_max = 1224<<4,
|
|
.gain_min = 1<<4,
|
|
.gain_max = (7<<4),
|
|
.regs = sensor_uxga_regs,
|
|
.regs_size = ARRAY_SIZE(sensor_uxga_regs),
|
|
.set_size = NULL,
|
|
},
|
|
{
|
|
.width = HD720_WIDTH,
|
|
.height = HD720_HEIGHT,
|
|
.hoffset = 0,
|
|
.voffset = 0,
|
|
.hts = 3300,//1646,//1616,
|
|
.vts = 736,//754,//764,
|
|
.pclk = 60*1000*1000,
|
|
.fps_fixed = 1,
|
|
.bin_factor = 1,
|
|
.intg_min = 1<<4,
|
|
.intg_max = 736<<4,
|
|
.gain_min = 1<<4,
|
|
.gain_max = (8<<4)-1,
|
|
.regs = sensor_720p_regs,//
|
|
.regs_size = ARRAY_SIZE(sensor_720p_regs),//
|
|
.set_size = NULL,
|
|
},
|
|
};
|
|
|
|
#define N_WIN_SIZES (ARRAY_SIZE(sensor_win_sizes))
|
|
|
|
static int sensor_enum_fmt(struct v4l2_subdev *sd, unsigned index,
|
|
enum v4l2_mbus_pixelcode *code)
|
|
{
|
|
if (index >= N_FMTS)
|
|
return -EINVAL;
|
|
|
|
*code = sensor_formats[index].mbus_code;
|
|
return 0;
|
|
}
|
|
|
|
static int sensor_enum_size(struct v4l2_subdev *sd,
|
|
struct v4l2_frmsizeenum *fsize)
|
|
{
|
|
if(fsize->index > N_WIN_SIZES-1)
|
|
return -EINVAL;
|
|
|
|
fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
|
|
fsize->discrete.width = sensor_win_sizes[fsize->index].width;
|
|
fsize->discrete.height = sensor_win_sizes[fsize->index].height;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int sensor_try_fmt_internal(struct v4l2_subdev *sd,
|
|
struct v4l2_mbus_framefmt *fmt,
|
|
struct sensor_format_struct **ret_fmt,
|
|
struct sensor_win_size **ret_wsize)
|
|
{
|
|
int index;
|
|
struct sensor_win_size *wsize;
|
|
struct sensor_info *info = to_state(sd);
|
|
|
|
for (index = 0; index < N_FMTS; index++)
|
|
if (sensor_formats[index].mbus_code == fmt->code)
|
|
break;
|
|
|
|
if (index >= N_FMTS)
|
|
return -EINVAL;
|
|
|
|
if (ret_fmt != NULL)
|
|
*ret_fmt = sensor_formats + index;
|
|
|
|
/*
|
|
* Fields: the sensor devices claim to be progressive.
|
|
*/
|
|
fmt->field = V4L2_FIELD_NONE;
|
|
|
|
/*
|
|
* Round requested image size down to the nearest
|
|
* we support, but not below the smallest.
|
|
*/
|
|
for (wsize = sensor_win_sizes; wsize < sensor_win_sizes + N_WIN_SIZES; wsize++)
|
|
if (fmt->width >= wsize->width && fmt->height >= wsize->height)
|
|
break;
|
|
|
|
if (wsize >= sensor_win_sizes + N_WIN_SIZES)
|
|
wsize--; /* Take the smallest one */
|
|
if (ret_wsize != NULL)
|
|
*ret_wsize = wsize;
|
|
/*
|
|
* Note the size we'll actually handle.
|
|
*/
|
|
fmt->width = wsize->width;
|
|
fmt->height = wsize->height;
|
|
info->current_wins = wsize;
|
|
return 0;
|
|
}
|
|
|
|
static int sensor_try_fmt(struct v4l2_subdev *sd,
|
|
struct v4l2_mbus_framefmt *fmt)
|
|
{
|
|
return sensor_try_fmt_internal(sd, fmt, NULL, NULL);
|
|
}
|
|
|
|
static int sensor_g_mbus_config(struct v4l2_subdev *sd,
|
|
struct v4l2_mbus_config *cfg)
|
|
{
|
|
cfg->type = V4L2_MBUS_PARALLEL;
|
|
cfg->flags = V4L2_MBUS_MASTER | VREF_POL | HREF_POL | CLK_POL ;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* Set a format.
|
|
*/
|
|
static int sensor_s_fmt(struct v4l2_subdev *sd,
|
|
struct v4l2_mbus_framefmt *fmt)
|
|
{
|
|
int ret;
|
|
struct sensor_format_struct *sensor_fmt;
|
|
struct sensor_win_size *wsize;
|
|
struct sensor_info *info = to_state(sd);
|
|
|
|
vfe_dev_dbg("sensor_s_fmt\n");
|
|
|
|
ret = sensor_try_fmt_internal(sd, fmt, &sensor_fmt, &wsize);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if(info->capture_mode == V4L2_MODE_VIDEO)
|
|
{
|
|
//video
|
|
}
|
|
else if(info->capture_mode == V4L2_MODE_IMAGE)
|
|
{
|
|
//image
|
|
}
|
|
|
|
sensor_write_array(sd, sensor_fmt->regs, sensor_fmt->regs_size);
|
|
|
|
ret = 0;
|
|
if (wsize->regs)
|
|
LOG_ERR_RET(sensor_write_array(sd, wsize->regs, wsize->regs_size))
|
|
|
|
if (wsize->set_size)
|
|
LOG_ERR_RET(wsize->set_size(sd))
|
|
|
|
info->fmt = sensor_fmt;
|
|
info->width = wsize->width;
|
|
info->height = wsize->height;
|
|
|
|
vfe_dev_print("s_fmt set width = %d, height = %d\n",wsize->width,wsize->height);
|
|
usleep_range(500000,600000);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Implement G/S_PARM. There is a "high quality" mode we could try
|
|
* to do someday; for now, we just do the frame rate tweak.
|
|
*/
|
|
static int sensor_g_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *parms)
|
|
{
|
|
struct v4l2_captureparm *cp = &parms->parm.capture;
|
|
struct sensor_info *info = to_state(sd);
|
|
|
|
if (parms->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
return -EINVAL;
|
|
|
|
memset(cp, 0, sizeof(struct v4l2_captureparm));
|
|
cp->capability = V4L2_CAP_TIMEPERFRAME;
|
|
cp->capturemode = info->capture_mode;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int sensor_s_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *parms)
|
|
{
|
|
struct v4l2_captureparm *cp = &parms->parm.capture;
|
|
struct sensor_info *info = to_state(sd);
|
|
|
|
vfe_dev_dbg("sensor_s_parm\n");
|
|
|
|
if (parms->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
return -EINVAL;
|
|
|
|
if (info->tpf.numerator == 0)
|
|
return -EINVAL;
|
|
|
|
info->capture_mode = cp->capturemode;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int sensor_queryctrl(struct v4l2_subdev *sd,
|
|
struct v4l2_queryctrl *qc)
|
|
{
|
|
/* Fill in min, max, step and default value for these controls. */
|
|
/* see include/linux/videodev2.h for details */
|
|
|
|
switch (qc->id) {
|
|
case V4L2_CID_GAIN:
|
|
return v4l2_ctrl_query_fill(qc, 1*16, 32*16, 1, 1*16);
|
|
case V4L2_CID_EXPOSURE:
|
|
return v4l2_ctrl_query_fill(qc, 0, 8192*16, 1, 0);
|
|
case V4L2_CID_FRAME_RATE:
|
|
return v4l2_ctrl_query_fill(qc, 15, 120, 1, 120);
|
|
}
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int sensor_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
|
|
{
|
|
switch (ctrl->id) {
|
|
case V4L2_CID_GAIN:
|
|
return sensor_g_gain(sd, &ctrl->value);
|
|
case V4L2_CID_EXPOSURE:
|
|
return sensor_g_exp(sd, &ctrl->value);
|
|
}
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int sensor_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
|
|
{
|
|
struct v4l2_queryctrl qc;
|
|
int ret;
|
|
|
|
qc.id = ctrl->id;
|
|
ret = sensor_queryctrl(sd, &qc);
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
|
|
if (ctrl->value < qc.minimum || ctrl->value > qc.maximum) {
|
|
vfe_dev_err("max gain qurery is %d,min gain qurey is %d\n",qc.maximum,qc.minimum);
|
|
return -ERANGE;
|
|
}
|
|
|
|
switch (ctrl->id) {
|
|
case V4L2_CID_GAIN:
|
|
return sensor_s_gain(sd, ctrl->value);
|
|
case V4L2_CID_EXPOSURE:
|
|
return sensor_s_exp(sd, ctrl->value);
|
|
}
|
|
return -EINVAL;
|
|
}
|
|
|
|
|
|
static int sensor_g_chip_ident(struct v4l2_subdev *sd,
|
|
struct v4l2_dbg_chip_ident *chip)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
|
|
return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_SENSOR, 0);
|
|
}
|
|
|
|
|
|
/* ----------------------------------------------------------------------- */
|
|
|
|
static const struct v4l2_subdev_core_ops sensor_core_ops = {
|
|
.g_chip_ident = sensor_g_chip_ident,
|
|
.g_ctrl = sensor_g_ctrl,
|
|
.s_ctrl = sensor_s_ctrl,
|
|
.queryctrl = sensor_queryctrl,
|
|
.reset = sensor_reset,
|
|
.init = sensor_init,
|
|
.s_power = sensor_power,
|
|
.ioctl = sensor_ioctl,
|
|
};
|
|
|
|
static const struct v4l2_subdev_video_ops sensor_video_ops = {
|
|
.enum_mbus_fmt = sensor_enum_fmt,
|
|
.enum_framesizes = sensor_enum_size,
|
|
.try_mbus_fmt = sensor_try_fmt,
|
|
.s_mbus_fmt = sensor_s_fmt,
|
|
.s_parm = sensor_s_parm,
|
|
.g_parm = sensor_g_parm,
|
|
.g_mbus_config = sensor_g_mbus_config,
|
|
};
|
|
|
|
static const struct v4l2_subdev_ops sensor_ops = {
|
|
.core = &sensor_core_ops,
|
|
.video = &sensor_video_ops,
|
|
};
|
|
|
|
/* ----------------------------------------------------------------------- */
|
|
static struct cci_driver cci_drv = {
|
|
.name = SENSOR_NAME,
|
|
.addr_width = CCI_BITS_8,
|
|
.data_width = CCI_BITS_8,
|
|
};
|
|
|
|
static int sensor_probe(struct i2c_client *client,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct v4l2_subdev *sd;
|
|
struct sensor_info *info;
|
|
info = kzalloc(sizeof(struct sensor_info), GFP_KERNEL);
|
|
if (info == NULL)
|
|
return -ENOMEM;
|
|
sd = &info->sd;
|
|
glb_sd = sd;
|
|
cci_dev_probe_helper(sd, client, &sensor_ops, &cci_drv);
|
|
|
|
info->fmt = &sensor_formats[0];
|
|
info->af_first_flag = 1;
|
|
info->init_first_flag = 1;
|
|
|
|
return 0;
|
|
}
|
|
static int sensor_remove(struct i2c_client *client)
|
|
{
|
|
struct v4l2_subdev *sd;
|
|
sd = cci_dev_remove_helper(client, &cci_drv);
|
|
kfree(to_state(sd));
|
|
return 0;
|
|
}
|
|
|
|
static const struct i2c_device_id sensor_id[] = {
|
|
{SENSOR_NAME, 0 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, sensor_id);
|
|
|
|
|
|
static struct i2c_driver sensor_driver = {
|
|
.driver = {
|
|
.owner = THIS_MODULE,
|
|
.name = SENSOR_NAME,
|
|
},
|
|
.probe = sensor_probe,
|
|
.remove = sensor_remove,
|
|
.id_table = sensor_id,
|
|
};
|
|
static __init int init_sensor(void)
|
|
{
|
|
return cci_dev_init_helper(&sensor_driver);
|
|
}
|
|
|
|
static __exit void exit_sensor(void)
|
|
{
|
|
cci_dev_exit_helper(&sensor_driver);
|
|
}
|
|
|
|
module_init(init_sensor);
|
|
module_exit(exit_sensor);
|
|
|