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linux/drivers/media/usb/cpia2/cpia2_core.c

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/****************************************************************************
*
* Filename: cpia2_core.c
*
* Copyright 2001, STMicrolectronics, Inc.
* Contact: steve.miller@st.com
*
* Description:
* This is a USB driver for CPia2 based video cameras.
* The infrastructure of this driver is based on the cpia usb driver by
* Jochen Scharrlach and Johannes Erdfeldt.
*
* 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.
*
* 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.
*
* Stripped of 2.4 stuff ready for main kernel submit by
* Alan Cox <alan@lxorguk.ukuu.org.uk>
*
****************************************************************************/
#include "cpia2.h"
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/mm.h>
#include <linux/vmalloc.h>
#include <linux/firmware.h>
#include <linux/sched/signal.h>
#define FIRMWARE "cpia2/stv0672_vp4.bin"
MODULE_FIRMWARE(FIRMWARE);
/* #define _CPIA2_DEBUG_ */
#ifdef _CPIA2_DEBUG_
static const char *block_name[] = {
"System",
"VC",
"VP",
"IDATA"
};
#endif
static unsigned int debugs_on; /* default 0 - DEBUG_REG */
/******************************************************************************
*
* Forward Declarations
*
*****************************************************************************/
static int apply_vp_patch(struct camera_data *cam);
static int set_default_user_mode(struct camera_data *cam);
static int set_vw_size(struct camera_data *cam, int size);
static int configure_sensor(struct camera_data *cam,
int reqwidth, int reqheight);
static int config_sensor_410(struct camera_data *cam,
int reqwidth, int reqheight);
static int config_sensor_500(struct camera_data *cam,
int reqwidth, int reqheight);
static int set_all_properties(struct camera_data *cam);
static void wake_system(struct camera_data *cam);
static void set_lowlight_boost(struct camera_data *cam);
static void reset_camera_struct(struct camera_data *cam);
static int cpia2_set_high_power(struct camera_data *cam);
/* Here we want the physical address of the memory.
* This is used when initializing the contents of the
* area and marking the pages as reserved.
*/
static inline unsigned long kvirt_to_pa(unsigned long adr)
{
unsigned long kva, ret;
kva = (unsigned long) page_address(vmalloc_to_page((void *)adr));
kva |= adr & (PAGE_SIZE-1); /* restore the offset */
ret = __pa(kva);
return ret;
}
static void *rvmalloc(unsigned long size)
{
void *mem;
unsigned long adr;
/* Round it off to PAGE_SIZE */
size = PAGE_ALIGN(size);
mem = vmalloc_32(size);
if (!mem)
return NULL;
memset(mem, 0, size); /* Clear the ram out, no junk to the user */
adr = (unsigned long) mem;
while ((long)size > 0) {
SetPageReserved(vmalloc_to_page((void *)adr));
adr += PAGE_SIZE;
size -= PAGE_SIZE;
}
return mem;
}
static void rvfree(void *mem, unsigned long size)
{
unsigned long adr;
if (!mem)
return;
size = PAGE_ALIGN(size);
adr = (unsigned long) mem;
while ((long)size > 0) {
ClearPageReserved(vmalloc_to_page((void *)adr));
adr += PAGE_SIZE;
size -= PAGE_SIZE;
}
vfree(mem);
}
/******************************************************************************
*
* cpia2_do_command
*
* Send an arbitrary command to the camera. For commands that read from
* the camera, copy the buffers into the proper param structures.
*****************************************************************************/
int cpia2_do_command(struct camera_data *cam,
u32 command, u8 direction, u8 param)
{
int retval = 0;
struct cpia2_command cmd;
unsigned int device = cam->params.pnp_id.device_type;
cmd.command = command;
cmd.reg_count = 2; /* default */
cmd.direction = direction;
/***
* Set up the command.
***/
switch (command) {
case CPIA2_CMD_GET_VERSION:
cmd.req_mode =
CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_SYSTEM;
cmd.start = CPIA2_SYSTEM_DEVICE_HI;
break;
case CPIA2_CMD_GET_PNP_ID:
cmd.req_mode =
CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_SYSTEM;
cmd.reg_count = 8;
cmd.start = CPIA2_SYSTEM_DESCRIP_VID_HI;
break;
case CPIA2_CMD_GET_ASIC_TYPE:
cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC;
cmd.start = CPIA2_VC_ASIC_ID;
break;
case CPIA2_CMD_GET_SENSOR:
cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
cmd.start = CPIA2_VP_SENSOR_FLAGS;
break;
case CPIA2_CMD_GET_VP_DEVICE:
cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
cmd.start = CPIA2_VP_DEVICEH;
break;
case CPIA2_CMD_SET_VP_BRIGHTNESS:
cmd.buffer.block_data[0] = param;
/* fall through */
case CPIA2_CMD_GET_VP_BRIGHTNESS:
cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
cmd.reg_count = 1;
if (device == DEVICE_STV_672)
cmd.start = CPIA2_VP4_EXPOSURE_TARGET;
else
cmd.start = CPIA2_VP5_EXPOSURE_TARGET;
break;
case CPIA2_CMD_SET_CONTRAST:
cmd.buffer.block_data[0] = param;
/* fall through */
case CPIA2_CMD_GET_CONTRAST:
cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
cmd.reg_count = 1;
cmd.start = CPIA2_VP_YRANGE;
break;
case CPIA2_CMD_SET_VP_SATURATION:
cmd.buffer.block_data[0] = param;
/* fall through */
case CPIA2_CMD_GET_VP_SATURATION:
cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
cmd.reg_count = 1;
if (device == DEVICE_STV_672)
cmd.start = CPIA2_VP_SATURATION;
else
cmd.start = CPIA2_VP5_MCUVSATURATION;
break;
case CPIA2_CMD_SET_VP_GPIO_DATA:
cmd.buffer.block_data[0] = param;
/* fall through */
case CPIA2_CMD_GET_VP_GPIO_DATA:
cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
cmd.reg_count = 1;
cmd.start = CPIA2_VP_GPIO_DATA;
break;
case CPIA2_CMD_SET_VP_GPIO_DIRECTION:
cmd.buffer.block_data[0] = param;
/* fall through */
case CPIA2_CMD_GET_VP_GPIO_DIRECTION:
cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
cmd.reg_count = 1;
cmd.start = CPIA2_VP_GPIO_DIRECTION;
break;
case CPIA2_CMD_SET_VC_MP_GPIO_DATA:
cmd.buffer.block_data[0] = param;
/* fall through */
case CPIA2_CMD_GET_VC_MP_GPIO_DATA:
cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC;
cmd.reg_count = 1;
cmd.start = CPIA2_VC_MP_DATA;
break;
case CPIA2_CMD_SET_VC_MP_GPIO_DIRECTION:
cmd.buffer.block_data[0] = param;
/*fall through */
case CPIA2_CMD_GET_VC_MP_GPIO_DIRECTION:
cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC;
cmd.reg_count = 1;
cmd.start = CPIA2_VC_MP_DIR;
break;
case CPIA2_CMD_ENABLE_PACKET_CTRL:
cmd.req_mode =
CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_SYSTEM;
cmd.start = CPIA2_SYSTEM_INT_PACKET_CTRL;
cmd.reg_count = 1;
cmd.buffer.block_data[0] = param;
break;
case CPIA2_CMD_SET_FLICKER_MODES:
cmd.buffer.block_data[0] = param;
/* fall through */
case CPIA2_CMD_GET_FLICKER_MODES:
cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
cmd.reg_count = 1;
cmd.start = CPIA2_VP_FLICKER_MODES;
break;
case CPIA2_CMD_RESET_FIFO: /* clear fifo and enable stream block */
cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VC;
cmd.reg_count = 2;
cmd.start = 0;
cmd.buffer.registers[0].index = CPIA2_VC_ST_CTRL;
cmd.buffer.registers[0].value = CPIA2_VC_ST_CTRL_SRC_VC |
CPIA2_VC_ST_CTRL_DST_USB | CPIA2_VC_ST_CTRL_EOF_DETECT;
cmd.buffer.registers[1].index = CPIA2_VC_ST_CTRL;
cmd.buffer.registers[1].value = CPIA2_VC_ST_CTRL_SRC_VC |
CPIA2_VC_ST_CTRL_DST_USB |
CPIA2_VC_ST_CTRL_EOF_DETECT |
CPIA2_VC_ST_CTRL_FIFO_ENABLE;
break;
case CPIA2_CMD_SET_HI_POWER:
cmd.req_mode =
CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_SYSTEM;
cmd.reg_count = 2;
cmd.buffer.registers[0].index =
CPIA2_SYSTEM_SYSTEM_CONTROL;
cmd.buffer.registers[1].index =
CPIA2_SYSTEM_SYSTEM_CONTROL;
cmd.buffer.registers[0].value = CPIA2_SYSTEM_CONTROL_CLEAR_ERR;
cmd.buffer.registers[1].value =
CPIA2_SYSTEM_CONTROL_HIGH_POWER;
break;
case CPIA2_CMD_SET_LOW_POWER:
cmd.req_mode =
CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_SYSTEM;
cmd.reg_count = 1;
cmd.start = CPIA2_SYSTEM_SYSTEM_CONTROL;
cmd.buffer.block_data[0] = 0;
break;
case CPIA2_CMD_CLEAR_V2W_ERR:
cmd.req_mode =
CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_SYSTEM;
cmd.reg_count = 1;
cmd.start = CPIA2_SYSTEM_SYSTEM_CONTROL;
cmd.buffer.block_data[0] = CPIA2_SYSTEM_CONTROL_CLEAR_ERR;
break;
case CPIA2_CMD_SET_USER_MODE:
cmd.buffer.block_data[0] = param;
/* fall through */
case CPIA2_CMD_GET_USER_MODE:
cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
cmd.reg_count = 1;
if (device == DEVICE_STV_672)
cmd.start = CPIA2_VP4_USER_MODE;
else
cmd.start = CPIA2_VP5_USER_MODE;
break;
case CPIA2_CMD_FRAMERATE_REQ:
cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
cmd.reg_count = 1;
if (device == DEVICE_STV_672)
cmd.start = CPIA2_VP4_FRAMERATE_REQUEST;
else
cmd.start = CPIA2_VP5_FRAMERATE_REQUEST;
cmd.buffer.block_data[0] = param;
break;
case CPIA2_CMD_SET_WAKEUP:
cmd.buffer.block_data[0] = param;
/* fall through */
case CPIA2_CMD_GET_WAKEUP:
cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC;
cmd.reg_count = 1;
cmd.start = CPIA2_VC_WAKEUP;
break;
case CPIA2_CMD_SET_PW_CONTROL:
cmd.buffer.block_data[0] = param;
/* fall through */
case CPIA2_CMD_GET_PW_CONTROL:
cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC;
cmd.reg_count = 1;
cmd.start = CPIA2_VC_PW_CTRL;
break;
case CPIA2_CMD_GET_VP_SYSTEM_STATE:
cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
cmd.reg_count = 1;
cmd.start = CPIA2_VP_SYSTEMSTATE;
break;
case CPIA2_CMD_SET_SYSTEM_CTRL:
cmd.buffer.block_data[0] = param;
/* fall through */
case CPIA2_CMD_GET_SYSTEM_CTRL:
cmd.req_mode =
CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_SYSTEM;
cmd.reg_count = 1;
cmd.start = CPIA2_SYSTEM_SYSTEM_CONTROL;
break;
case CPIA2_CMD_SET_VP_SYSTEM_CTRL:
cmd.buffer.block_data[0] = param;
/* fall through */
case CPIA2_CMD_GET_VP_SYSTEM_CTRL:
cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
cmd.reg_count = 1;
cmd.start = CPIA2_VP_SYSTEMCTRL;
break;
case CPIA2_CMD_SET_VP_EXP_MODES:
cmd.buffer.block_data[0] = param;
/* fall through */
case CPIA2_CMD_GET_VP_EXP_MODES:
cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
cmd.reg_count = 1;
cmd.start = CPIA2_VP_EXPOSURE_MODES;
break;
case CPIA2_CMD_SET_DEVICE_CONFIG:
cmd.buffer.block_data[0] = param;
/* fall through */
case CPIA2_CMD_GET_DEVICE_CONFIG:
cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
cmd.reg_count = 1;
cmd.start = CPIA2_VP_DEVICE_CONFIG;
break;
case CPIA2_CMD_SET_SERIAL_ADDR:
cmd.buffer.block_data[0] = param;
cmd.req_mode =
CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_SYSTEM;
cmd.reg_count = 1;
cmd.start = CPIA2_SYSTEM_VP_SERIAL_ADDR;
break;
case CPIA2_CMD_SET_SENSOR_CR1:
cmd.buffer.block_data[0] = param;
cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
cmd.reg_count = 1;
cmd.start = CPIA2_SENSOR_CR1;
break;
case CPIA2_CMD_SET_VC_CONTROL:
cmd.buffer.block_data[0] = param;
/* fall through */
case CPIA2_CMD_GET_VC_CONTROL:
cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC;
cmd.reg_count = 1;
cmd.start = CPIA2_VC_VC_CTRL;
break;
case CPIA2_CMD_SET_TARGET_KB:
cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VC;
cmd.reg_count = 1;
cmd.buffer.registers[0].index = CPIA2_VC_VC_TARGET_KB;
cmd.buffer.registers[0].value = param;
break;
case CPIA2_CMD_SET_DEF_JPEG_OPT:
cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VC;
cmd.reg_count = 4;
cmd.buffer.registers[0].index = CPIA2_VC_VC_JPEG_OPT;
cmd.buffer.registers[0].value =
CPIA2_VC_VC_JPEG_OPT_DOUBLE_SQUEEZE;
cmd.buffer.registers[1].index = CPIA2_VC_VC_USER_SQUEEZE;
cmd.buffer.registers[1].value = 20;
cmd.buffer.registers[2].index = CPIA2_VC_VC_CREEP_PERIOD;
cmd.buffer.registers[2].value = 2;
cmd.buffer.registers[3].index = CPIA2_VC_VC_JPEG_OPT;
cmd.buffer.registers[3].value = CPIA2_VC_VC_JPEG_OPT_DEFAULT;
break;
case CPIA2_CMD_REHASH_VP4:
cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
cmd.reg_count = 1;
cmd.start = CPIA2_VP_REHASH_VALUES;
cmd.buffer.block_data[0] = param;
break;
case CPIA2_CMD_SET_USER_EFFECTS: /* Note: Be careful with this as
this register can also affect
flicker modes */
cmd.buffer.block_data[0] = param;
/* fall through */
case CPIA2_CMD_GET_USER_EFFECTS:
cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
cmd.reg_count = 1;
if (device == DEVICE_STV_672)
cmd.start = CPIA2_VP4_USER_EFFECTS;
else
cmd.start = CPIA2_VP5_USER_EFFECTS;
break;
default:
LOG("DoCommand received invalid command\n");
return -EINVAL;
}
retval = cpia2_send_command(cam, &cmd);
if (retval) {
return retval;
}
/***
* Now copy any results from a read into the appropriate param struct.
***/
switch (command) {
case CPIA2_CMD_GET_VERSION:
cam->params.version.firmware_revision_hi =
cmd.buffer.block_data[0];
cam->params.version.firmware_revision_lo =
cmd.buffer.block_data[1];
break;
case CPIA2_CMD_GET_PNP_ID:
cam->params.pnp_id.vendor = (cmd.buffer.block_data[0] << 8) |
cmd.buffer.block_data[1];
cam->params.pnp_id.product = (cmd.buffer.block_data[2] << 8) |
cmd.buffer.block_data[3];
cam->params.pnp_id.device_revision =
(cmd.buffer.block_data[4] << 8) |
cmd.buffer.block_data[5];
if (cam->params.pnp_id.vendor == 0x553) {
if (cam->params.pnp_id.product == 0x100) {
cam->params.pnp_id.device_type = DEVICE_STV_672;
} else if (cam->params.pnp_id.product == 0x140 ||
cam->params.pnp_id.product == 0x151) {
cam->params.pnp_id.device_type = DEVICE_STV_676;
}
}
break;
case CPIA2_CMD_GET_ASIC_TYPE:
cam->params.version.asic_id = cmd.buffer.block_data[0];
cam->params.version.asic_rev = cmd.buffer.block_data[1];
break;
case CPIA2_CMD_GET_SENSOR:
cam->params.version.sensor_flags = cmd.buffer.block_data[0];
cam->params.version.sensor_rev = cmd.buffer.block_data[1];
break;
case CPIA2_CMD_GET_VP_DEVICE:
cam->params.version.vp_device_hi = cmd.buffer.block_data[0];
cam->params.version.vp_device_lo = cmd.buffer.block_data[1];
break;
case CPIA2_CMD_GET_VP_GPIO_DATA:
cam->params.vp_params.gpio_data = cmd.buffer.block_data[0];
break;
case CPIA2_CMD_GET_VP_GPIO_DIRECTION:
cam->params.vp_params.gpio_direction = cmd.buffer.block_data[0];
break;
case CPIA2_CMD_GET_VC_MP_GPIO_DIRECTION:
cam->params.vc_params.vc_mp_direction =cmd.buffer.block_data[0];
break;
case CPIA2_CMD_GET_VC_MP_GPIO_DATA:
cam->params.vc_params.vc_mp_data = cmd.buffer.block_data[0];
break;
case CPIA2_CMD_GET_FLICKER_MODES:
cam->params.flicker_control.cam_register =
cmd.buffer.block_data[0];
break;
case CPIA2_CMD_GET_WAKEUP:
cam->params.vc_params.wakeup = cmd.buffer.block_data[0];
break;
case CPIA2_CMD_GET_PW_CONTROL:
cam->params.vc_params.pw_control = cmd.buffer.block_data[0];
break;
case CPIA2_CMD_GET_SYSTEM_CTRL:
cam->params.camera_state.system_ctrl = cmd.buffer.block_data[0];
break;
case CPIA2_CMD_GET_VP_SYSTEM_STATE:
cam->params.vp_params.system_state = cmd.buffer.block_data[0];
break;
case CPIA2_CMD_GET_VP_SYSTEM_CTRL:
cam->params.vp_params.system_ctrl = cmd.buffer.block_data[0];
break;
case CPIA2_CMD_GET_VP_EXP_MODES:
cam->params.vp_params.exposure_modes = cmd.buffer.block_data[0];
break;
case CPIA2_CMD_GET_DEVICE_CONFIG:
cam->params.vp_params.device_config = cmd.buffer.block_data[0];
break;
case CPIA2_CMD_GET_VC_CONTROL:
cam->params.vc_params.vc_control = cmd.buffer.block_data[0];
break;
case CPIA2_CMD_GET_USER_MODE:
cam->params.vp_params.video_mode = cmd.buffer.block_data[0];
break;
case CPIA2_CMD_GET_USER_EFFECTS:
cam->params.vp_params.user_effects = cmd.buffer.block_data[0];
break;
default:
break;
}
return retval;
}
/******************************************************************************
*
* cpia2_send_command
*
*****************************************************************************/
#define DIR(cmd) ((cmd->direction == TRANSFER_WRITE) ? "Write" : "Read")
#define BINDEX(cmd) (cmd->req_mode & 0x03)
int cpia2_send_command(struct camera_data *cam, struct cpia2_command *cmd)
{
u8 count;
u8 start;
u8 *buffer;
int retval;
switch (cmd->req_mode & 0x0c) {
case CAMERAACCESS_TYPE_RANDOM:
count = cmd->reg_count * sizeof(struct cpia2_register);
start = 0;
buffer = (u8 *) & cmd->buffer;
if (debugs_on & DEBUG_REG)
DBG("%s Random: Register block %s\n", DIR(cmd),
block_name[BINDEX(cmd)]);
break;
case CAMERAACCESS_TYPE_BLOCK:
count = cmd->reg_count;
start = cmd->start;
buffer = cmd->buffer.block_data;
if (debugs_on & DEBUG_REG)
DBG("%s Block: Register block %s\n", DIR(cmd),
block_name[BINDEX(cmd)]);
break;
case CAMERAACCESS_TYPE_MASK:
count = cmd->reg_count * sizeof(struct cpia2_reg_mask);
start = 0;
buffer = (u8 *) & cmd->buffer;
if (debugs_on & DEBUG_REG)
DBG("%s Mask: Register block %s\n", DIR(cmd),
block_name[BINDEX(cmd)]);
break;
case CAMERAACCESS_TYPE_REPEAT: /* For patch blocks only */
count = cmd->reg_count;
start = cmd->start;
buffer = cmd->buffer.block_data;
if (debugs_on & DEBUG_REG)
DBG("%s Repeat: Register block %s\n", DIR(cmd),
block_name[BINDEX(cmd)]);
break;
default:
LOG("%s: invalid request mode\n",__func__);
return -EINVAL;
}
retval = cpia2_usb_transfer_cmd(cam,
buffer,
cmd->req_mode,
start, count, cmd->direction);
#ifdef _CPIA2_DEBUG_
if (debugs_on & DEBUG_REG) {
int i;
for (i = 0; i < cmd->reg_count; i++) {
if((cmd->req_mode & 0x0c) == CAMERAACCESS_TYPE_BLOCK)
KINFO("%s Block: [0x%02X] = 0x%02X\n",
DIR(cmd), start + i, buffer[i]);
if((cmd->req_mode & 0x0c) == CAMERAACCESS_TYPE_RANDOM)
KINFO("%s Random: [0x%02X] = 0x%02X\n",
DIR(cmd), cmd->buffer.registers[i].index,
cmd->buffer.registers[i].value);
}
}
#endif
return retval;
};
/*************
* Functions to implement camera functionality
*************/
/******************************************************************************
*
* cpia2_get_version_info
*
*****************************************************************************/
static void cpia2_get_version_info(struct camera_data *cam)
{
cpia2_do_command(cam, CPIA2_CMD_GET_VERSION, TRANSFER_READ, 0);
cpia2_do_command(cam, CPIA2_CMD_GET_PNP_ID, TRANSFER_READ, 0);
cpia2_do_command(cam, CPIA2_CMD_GET_ASIC_TYPE, TRANSFER_READ, 0);
cpia2_do_command(cam, CPIA2_CMD_GET_SENSOR, TRANSFER_READ, 0);
cpia2_do_command(cam, CPIA2_CMD_GET_VP_DEVICE, TRANSFER_READ, 0);
}
/******************************************************************************
*
* cpia2_reset_camera
*
* Called at least during the open process, sets up initial params.
*****************************************************************************/
int cpia2_reset_camera(struct camera_data *cam)
{
u8 tmp_reg;
int retval = 0;
int target_kb;
int i;
struct cpia2_command cmd;
/***
* VC setup
***/
retval = configure_sensor(cam,
cam->params.roi.width,
cam->params.roi.height);
if (retval < 0) {
ERR("Couldn't configure sensor, error=%d\n", retval);
return retval;
}
/* Clear FIFO and route/enable stream block */
cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VC;
cmd.direction = TRANSFER_WRITE;
cmd.reg_count = 2;
cmd.buffer.registers[0].index = CPIA2_VC_ST_CTRL;
cmd.buffer.registers[0].value = CPIA2_VC_ST_CTRL_SRC_VC |
CPIA2_VC_ST_CTRL_DST_USB | CPIA2_VC_ST_CTRL_EOF_DETECT;
cmd.buffer.registers[1].index = CPIA2_VC_ST_CTRL;
cmd.buffer.registers[1].value = CPIA2_VC_ST_CTRL_SRC_VC |
CPIA2_VC_ST_CTRL_DST_USB |
CPIA2_VC_ST_CTRL_EOF_DETECT | CPIA2_VC_ST_CTRL_FIFO_ENABLE;
cpia2_send_command(cam, &cmd);
cpia2_set_high_power(cam);
if (cam->params.pnp_id.device_type == DEVICE_STV_672) {
/* Enable button notification */
cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_SYSTEM;
cmd.buffer.registers[0].index = CPIA2_SYSTEM_INT_PACKET_CTRL;
cmd.buffer.registers[0].value =
CPIA2_SYSTEM_INT_PACKET_CTRL_ENABLE_SW_XX;
cmd.reg_count = 1;
cpia2_send_command(cam, &cmd);
}
schedule_timeout_interruptible(msecs_to_jiffies(100));
if (cam->params.pnp_id.device_type == DEVICE_STV_672)
retval = apply_vp_patch(cam);
/* wait for vp to go to sleep */
schedule_timeout_interruptible(msecs_to_jiffies(100));
/***
* If this is a 676, apply VP5 fixes before we start streaming
***/
if (cam->params.pnp_id.device_type == DEVICE_STV_676) {
cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VP;
/* The following writes improve the picture */
cmd.buffer.registers[0].index = CPIA2_VP5_MYBLACK_LEVEL;
cmd.buffer.registers[0].value = 0; /* reduce from the default
* rec 601 pedestal of 16 */
cmd.buffer.registers[1].index = CPIA2_VP5_MCYRANGE;
cmd.buffer.registers[1].value = 0x92; /* increase from 100% to
* (256/256 - 31) to fill
* available range */
cmd.buffer.registers[2].index = CPIA2_VP5_MYCEILING;
cmd.buffer.registers[2].value = 0xFF; /* Increase from the
* default rec 601 ceiling
* of 240 */
cmd.buffer.registers[3].index = CPIA2_VP5_MCUVSATURATION;
cmd.buffer.registers[3].value = 0xFF; /* Increase from the rec
* 601 100% level (128)
* to 145-192 */
cmd.buffer.registers[4].index = CPIA2_VP5_ANTIFLKRSETUP;
cmd.buffer.registers[4].value = 0x80; /* Inhibit the
* anti-flicker */
/* The following 4 writes are a fix to allow QVGA to work at 30 fps */
cmd.buffer.registers[5].index = CPIA2_VP_RAM_ADDR_H;
cmd.buffer.registers[5].value = 0x01;
cmd.buffer.registers[6].index = CPIA2_VP_RAM_ADDR_L;
cmd.buffer.registers[6].value = 0xE3;
cmd.buffer.registers[7].index = CPIA2_VP_RAM_DATA;
cmd.buffer.registers[7].value = 0x02;
cmd.buffer.registers[8].index = CPIA2_VP_RAM_DATA;
cmd.buffer.registers[8].value = 0xFC;
cmd.direction = TRANSFER_WRITE;
cmd.reg_count = 9;
cpia2_send_command(cam, &cmd);
}
/* Activate all settings and start the data stream */
/* Set user mode */
set_default_user_mode(cam);
/* Give VP time to wake up */
schedule_timeout_interruptible(msecs_to_jiffies(100));
set_all_properties(cam);
cpia2_do_command(cam, CPIA2_CMD_GET_USER_MODE, TRANSFER_READ, 0);
DBG("After SetAllProperties(cam), user mode is 0x%0X\n",
cam->params.vp_params.video_mode);
/***
* Set audio regulator off. This and the code to set the compresison
* state are too complex to form a CPIA2_CMD_, and seem to be somewhat
* intertwined. This stuff came straight from the windows driver.
***/
/* Turn AutoExposure off in VP and enable the serial bridge to the sensor */
cpia2_do_command(cam, CPIA2_CMD_GET_VP_SYSTEM_CTRL, TRANSFER_READ, 0);
tmp_reg = cam->params.vp_params.system_ctrl;
cmd.buffer.registers[0].value = tmp_reg &
(tmp_reg & (CPIA2_VP_SYSTEMCTRL_HK_CONTROL ^ 0xFF));
cpia2_do_command(cam, CPIA2_CMD_GET_DEVICE_CONFIG, TRANSFER_READ, 0);
cmd.buffer.registers[1].value = cam->params.vp_params.device_config |
CPIA2_VP_DEVICE_CONFIG_SERIAL_BRIDGE;
cmd.buffer.registers[0].index = CPIA2_VP_SYSTEMCTRL;
cmd.buffer.registers[1].index = CPIA2_VP_DEVICE_CONFIG;
cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VP;
cmd.reg_count = 2;
cmd.direction = TRANSFER_WRITE;
cmd.start = 0;
cpia2_send_command(cam, &cmd);
/* Set the correct I2C address in the CPiA-2 system register */
cpia2_do_command(cam,
CPIA2_CMD_SET_SERIAL_ADDR,
TRANSFER_WRITE,
CPIA2_SYSTEM_VP_SERIAL_ADDR_SENSOR);
/* Now have sensor access - set bit to turn the audio regulator off */
cpia2_do_command(cam,
CPIA2_CMD_SET_SENSOR_CR1,
TRANSFER_WRITE, CPIA2_SENSOR_CR1_DOWN_AUDIO_REGULATOR);
/* Set the correct I2C address in the CPiA-2 system register */
if (cam->params.pnp_id.device_type == DEVICE_STV_672)
cpia2_do_command(cam,
CPIA2_CMD_SET_SERIAL_ADDR,
TRANSFER_WRITE,
CPIA2_SYSTEM_VP_SERIAL_ADDR_VP); // 0x88
else
cpia2_do_command(cam,
CPIA2_CMD_SET_SERIAL_ADDR,
TRANSFER_WRITE,
CPIA2_SYSTEM_VP_SERIAL_ADDR_676_VP); // 0x8a
/* increase signal drive strength */
if (cam->params.pnp_id.device_type == DEVICE_STV_676)
cpia2_do_command(cam,
CPIA2_CMD_SET_VP_EXP_MODES,
TRANSFER_WRITE,
CPIA2_VP_EXPOSURE_MODES_COMPILE_EXP);
/* Start autoexposure */
cpia2_do_command(cam, CPIA2_CMD_GET_DEVICE_CONFIG, TRANSFER_READ, 0);
cmd.buffer.registers[0].value = cam->params.vp_params.device_config &
(CPIA2_VP_DEVICE_CONFIG_SERIAL_BRIDGE ^ 0xFF);
cpia2_do_command(cam, CPIA2_CMD_GET_VP_SYSTEM_CTRL, TRANSFER_READ, 0);
cmd.buffer.registers[1].value =
cam->params.vp_params.system_ctrl | CPIA2_VP_SYSTEMCTRL_HK_CONTROL;
cmd.buffer.registers[0].index = CPIA2_VP_DEVICE_CONFIG;
cmd.buffer.registers[1].index = CPIA2_VP_SYSTEMCTRL;
cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VP;
cmd.reg_count = 2;
cmd.direction = TRANSFER_WRITE;
cpia2_send_command(cam, &cmd);
/* Set compression state */
cpia2_do_command(cam, CPIA2_CMD_GET_VC_CONTROL, TRANSFER_READ, 0);
if (cam->params.compression.inhibit_htables) {
tmp_reg = cam->params.vc_params.vc_control |
CPIA2_VC_VC_CTRL_INHIBIT_H_TABLES;
} else {
tmp_reg = cam->params.vc_params.vc_control &
~CPIA2_VC_VC_CTRL_INHIBIT_H_TABLES;
}
cpia2_do_command(cam, CPIA2_CMD_SET_VC_CONTROL, TRANSFER_WRITE,tmp_reg);
/* Set target size (kb) on vc
This is a heuristic based on the quality parameter and the raw
framesize in kB divided by 16 (the compression factor when the
quality is 100%) */
target_kb = (cam->width * cam->height * 2 / 16384) *
cam->params.vc_params.quality / 100;
if (target_kb < 1)
target_kb = 1;
cpia2_do_command(cam, CPIA2_CMD_SET_TARGET_KB,
TRANSFER_WRITE, target_kb);
/* Wiggle VC Reset */
/***
* First read and wait a bit.
***/
for (i = 0; i < 50; i++) {
cpia2_do_command(cam, CPIA2_CMD_GET_PW_CONTROL,
TRANSFER_READ, 0);
}
tmp_reg = cam->params.vc_params.pw_control;
tmp_reg &= ~CPIA2_VC_PW_CTRL_VC_RESET_N;
cpia2_do_command(cam, CPIA2_CMD_SET_PW_CONTROL, TRANSFER_WRITE,tmp_reg);
tmp_reg |= CPIA2_VC_PW_CTRL_VC_RESET_N;
cpia2_do_command(cam, CPIA2_CMD_SET_PW_CONTROL, TRANSFER_WRITE,tmp_reg);
cpia2_do_command(cam, CPIA2_CMD_SET_DEF_JPEG_OPT, TRANSFER_WRITE, 0);
cpia2_do_command(cam, CPIA2_CMD_GET_USER_MODE, TRANSFER_READ, 0);
DBG("After VC RESET, user mode is 0x%0X\n",
cam->params.vp_params.video_mode);
return retval;
}
/******************************************************************************
*
* cpia2_set_high_power
*
*****************************************************************************/
static int cpia2_set_high_power(struct camera_data *cam)
{
int i;
for (i = 0; i <= 50; i++) {
/* Read system status */
cpia2_do_command(cam,CPIA2_CMD_GET_SYSTEM_CTRL,TRANSFER_READ,0);
/* If there is an error, clear it */
if(cam->params.camera_state.system_ctrl &
CPIA2_SYSTEM_CONTROL_V2W_ERR)
cpia2_do_command(cam, CPIA2_CMD_CLEAR_V2W_ERR,
TRANSFER_WRITE, 0);
/* Try to set high power mode */
cpia2_do_command(cam, CPIA2_CMD_SET_SYSTEM_CTRL,
TRANSFER_WRITE, 1);
/* Try to read something in VP to check if everything is awake */
cpia2_do_command(cam, CPIA2_CMD_GET_VP_SYSTEM_STATE,
TRANSFER_READ, 0);
if (cam->params.vp_params.system_state &
CPIA2_VP_SYSTEMSTATE_HK_ALIVE) {
break;
} else if (i == 50) {
cam->params.camera_state.power_mode = LO_POWER_MODE;
ERR("Camera did not wake up\n");
return -EIO;
}
}
DBG("System now in high power state\n");
cam->params.camera_state.power_mode = HI_POWER_MODE;
return 0;
}
/******************************************************************************
*
* cpia2_set_low_power
*
*****************************************************************************/
int cpia2_set_low_power(struct camera_data *cam)
{
cam->params.camera_state.power_mode = LO_POWER_MODE;
cpia2_do_command(cam, CPIA2_CMD_SET_SYSTEM_CTRL, TRANSFER_WRITE, 0);
return 0;
}
/******************************************************************************
*
* apply_vp_patch
*
*****************************************************************************/
static int cpia2_send_onebyte_command(struct camera_data *cam,
struct cpia2_command *cmd,
u8 start, u8 datum)
{
cmd->buffer.block_data[0] = datum;
cmd->start = start;
cmd->reg_count = 1;
return cpia2_send_command(cam, cmd);
}
static int apply_vp_patch(struct camera_data *cam)
{
const struct firmware *fw;
const char fw_name[] = FIRMWARE;
int i, ret;
struct cpia2_command cmd;
ret = request_firmware(&fw, fw_name, &cam->dev->dev);
if (ret) {
printk(KERN_ERR "cpia2: failed to load VP patch \"%s\"\n",
fw_name);
return ret;
}
cmd.req_mode = CAMERAACCESS_TYPE_REPEAT | CAMERAACCESS_VP;
cmd.direction = TRANSFER_WRITE;
/* First send the start address... */
cpia2_send_onebyte_command(cam, &cmd, 0x0A, fw->data[0]); /* hi */
cpia2_send_onebyte_command(cam, &cmd, 0x0B, fw->data[1]); /* lo */
/* ... followed by the data payload */
for (i = 2; i < fw->size; i += 64) {
cmd.start = 0x0C; /* Data */
cmd.reg_count = min_t(uint, 64, fw->size - i);
memcpy(cmd.buffer.block_data, &fw->data[i], cmd.reg_count);
cpia2_send_command(cam, &cmd);
}
/* Next send the start address... */
cpia2_send_onebyte_command(cam, &cmd, 0x0A, fw->data[0]); /* hi */
cpia2_send_onebyte_command(cam, &cmd, 0x0B, fw->data[1]); /* lo */
/* ... followed by the 'goto' command */
cpia2_send_onebyte_command(cam, &cmd, 0x0D, 1);
release_firmware(fw);
return 0;
}
/******************************************************************************
*
* set_default_user_mode
*
*****************************************************************************/
static int set_default_user_mode(struct camera_data *cam)
{
unsigned char user_mode;
unsigned char frame_rate;
int width = cam->params.roi.width;
int height = cam->params.roi.height;
switch (cam->params.version.sensor_flags) {
case CPIA2_VP_SENSOR_FLAGS_404:
case CPIA2_VP_SENSOR_FLAGS_407:
case CPIA2_VP_SENSOR_FLAGS_409:
case CPIA2_VP_SENSOR_FLAGS_410:
if ((width > STV_IMAGE_QCIF_COLS)
|| (height > STV_IMAGE_QCIF_ROWS)) {
user_mode = CPIA2_VP_USER_MODE_CIF;
} else {
user_mode = CPIA2_VP_USER_MODE_QCIFDS;
}
frame_rate = CPIA2_VP_FRAMERATE_30;
break;
case CPIA2_VP_SENSOR_FLAGS_500:
if ((width > STV_IMAGE_CIF_COLS)
|| (height > STV_IMAGE_CIF_ROWS)) {
user_mode = CPIA2_VP_USER_MODE_VGA;
} else {
user_mode = CPIA2_VP_USER_MODE_QVGADS;
}
if (cam->params.pnp_id.device_type == DEVICE_STV_672)
frame_rate = CPIA2_VP_FRAMERATE_15;
else
frame_rate = CPIA2_VP_FRAMERATE_30;
break;
default:
LOG("%s: Invalid sensor flag value 0x%0X\n",__func__,
cam->params.version.sensor_flags);
return -EINVAL;
}
DBG("Sensor flag = 0x%0x, user mode = 0x%0x, frame rate = 0x%X\n",
cam->params.version.sensor_flags, user_mode, frame_rate);
cpia2_do_command(cam, CPIA2_CMD_SET_USER_MODE, TRANSFER_WRITE,
user_mode);
if(cam->params.vp_params.frame_rate > 0 &&
frame_rate > cam->params.vp_params.frame_rate)
frame_rate = cam->params.vp_params.frame_rate;
cpia2_set_fps(cam, frame_rate);
// if (cam->params.pnp_id.device_type == DEVICE_STV_676)
// cpia2_do_command(cam,
// CPIA2_CMD_SET_VP_SYSTEM_CTRL,
// TRANSFER_WRITE,
// CPIA2_VP_SYSTEMCTRL_HK_CONTROL |
// CPIA2_VP_SYSTEMCTRL_POWER_CONTROL);
return 0;
}
/******************************************************************************
*
* cpia2_match_video_size
*
* return the best match, where 'best' is as always
* the largest that is not bigger than what is requested.
*****************************************************************************/
int cpia2_match_video_size(int width, int height)
{
if (width >= STV_IMAGE_VGA_COLS && height >= STV_IMAGE_VGA_ROWS)
return VIDEOSIZE_VGA;
if (width >= STV_IMAGE_CIF_COLS && height >= STV_IMAGE_CIF_ROWS)
return VIDEOSIZE_CIF;
if (width >= STV_IMAGE_QVGA_COLS && height >= STV_IMAGE_QVGA_ROWS)
return VIDEOSIZE_QVGA;
if (width >= 288 && height >= 216)
return VIDEOSIZE_288_216;
if (width >= 256 && height >= 192)
return VIDEOSIZE_256_192;
if (width >= 224 && height >= 168)
return VIDEOSIZE_224_168;
if (width >= 192 && height >= 144)
return VIDEOSIZE_192_144;
if (width >= STV_IMAGE_QCIF_COLS && height >= STV_IMAGE_QCIF_ROWS)
return VIDEOSIZE_QCIF;
return -1;
}
/******************************************************************************
*
* SetVideoSize
*
*****************************************************************************/
static int set_vw_size(struct camera_data *cam, int size)
{
int retval = 0;
cam->params.vp_params.video_size = size;
switch (size) {
case VIDEOSIZE_VGA:
DBG("Setting size to VGA\n");
cam->params.roi.width = STV_IMAGE_VGA_COLS;
cam->params.roi.height = STV_IMAGE_VGA_ROWS;
cam->width = STV_IMAGE_VGA_COLS;
cam->height = STV_IMAGE_VGA_ROWS;
break;
case VIDEOSIZE_CIF:
DBG("Setting size to CIF\n");
cam->params.roi.width = STV_IMAGE_CIF_COLS;
cam->params.roi.height = STV_IMAGE_CIF_ROWS;
cam->width = STV_IMAGE_CIF_COLS;
cam->height = STV_IMAGE_CIF_ROWS;
break;
case VIDEOSIZE_QVGA:
DBG("Setting size to QVGA\n");
cam->params.roi.width = STV_IMAGE_QVGA_COLS;
cam->params.roi.height = STV_IMAGE_QVGA_ROWS;
cam->width = STV_IMAGE_QVGA_COLS;
cam->height = STV_IMAGE_QVGA_ROWS;
break;
case VIDEOSIZE_288_216:
cam->params.roi.width = 288;
cam->params.roi.height = 216;
cam->width = 288;
cam->height = 216;
break;
case VIDEOSIZE_256_192:
cam->width = 256;
cam->height = 192;
cam->params.roi.width = 256;
cam->params.roi.height = 192;
break;
case VIDEOSIZE_224_168:
cam->width = 224;
cam->height = 168;
cam->params.roi.width = 224;
cam->params.roi.height = 168;
break;
case VIDEOSIZE_192_144:
cam->width = 192;
cam->height = 144;
cam->params.roi.width = 192;
cam->params.roi.height = 144;
break;
case VIDEOSIZE_QCIF:
DBG("Setting size to QCIF\n");
cam->params.roi.width = STV_IMAGE_QCIF_COLS;
cam->params.roi.height = STV_IMAGE_QCIF_ROWS;
cam->width = STV_IMAGE_QCIF_COLS;
cam->height = STV_IMAGE_QCIF_ROWS;
break;
default:
retval = -EINVAL;
}
return retval;
}
/******************************************************************************
*
* configure_sensor
*
*****************************************************************************/
static int configure_sensor(struct camera_data *cam,
int req_width, int req_height)
{
int retval;
switch (cam->params.version.sensor_flags) {
case CPIA2_VP_SENSOR_FLAGS_404:
case CPIA2_VP_SENSOR_FLAGS_407:
case CPIA2_VP_SENSOR_FLAGS_409:
case CPIA2_VP_SENSOR_FLAGS_410:
retval = config_sensor_410(cam, req_width, req_height);
break;
case CPIA2_VP_SENSOR_FLAGS_500:
retval = config_sensor_500(cam, req_width, req_height);
break;
default:
return -EINVAL;
}
return retval;
}
/******************************************************************************
*
* config_sensor_410
*
*****************************************************************************/
static int config_sensor_410(struct camera_data *cam,
int req_width, int req_height)
{
struct cpia2_command cmd;
int i = 0;
int image_size;
int image_type;
int width = req_width;
int height = req_height;
/***
* Make sure size doesn't exceed CIF.
***/
if (width > STV_IMAGE_CIF_COLS)
width = STV_IMAGE_CIF_COLS;
if (height > STV_IMAGE_CIF_ROWS)
height = STV_IMAGE_CIF_ROWS;
image_size = cpia2_match_video_size(width, height);
DBG("Config 410: width = %d, height = %d\n", width, height);
DBG("Image size returned is %d\n", image_size);
if (image_size >= 0) {
set_vw_size(cam, image_size);
width = cam->params.roi.width;
height = cam->params.roi.height;
DBG("After set_vw_size(), width = %d, height = %d\n",
width, height);
if (width <= 176 && height <= 144) {
DBG("image type = VIDEOSIZE_QCIF\n");
image_type = VIDEOSIZE_QCIF;
}
else if (width <= 320 && height <= 240) {
DBG("image type = VIDEOSIZE_QVGA\n");
image_type = VIDEOSIZE_QVGA;
}
else {
DBG("image type = VIDEOSIZE_CIF\n");
image_type = VIDEOSIZE_CIF;
}
} else {
ERR("ConfigSensor410 failed\n");
return -EINVAL;
}
cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VC;
cmd.direction = TRANSFER_WRITE;
/* VC Format */
cmd.buffer.registers[i].index = CPIA2_VC_VC_FORMAT;
if (image_type == VIDEOSIZE_CIF) {
cmd.buffer.registers[i++].value =
(u8) (CPIA2_VC_VC_FORMAT_UFIRST |
CPIA2_VC_VC_FORMAT_SHORTLINE);
} else {
cmd.buffer.registers[i++].value =
(u8) CPIA2_VC_VC_FORMAT_UFIRST;
}
/* VC Clocks */
cmd.buffer.registers[i].index = CPIA2_VC_VC_CLOCKS;
if (image_type == VIDEOSIZE_QCIF) {
if (cam->params.pnp_id.device_type == DEVICE_STV_672) {
cmd.buffer.registers[i++].value=
(u8)(CPIA2_VC_VC_672_CLOCKS_CIF_DIV_BY_3 |
CPIA2_VC_VC_672_CLOCKS_SCALING |
CPIA2_VC_VC_CLOCKS_LOGDIV2);
DBG("VC_Clocks (0xc4) should be B\n");
}
else {
cmd.buffer.registers[i++].value=
(u8)(CPIA2_VC_VC_676_CLOCKS_CIF_DIV_BY_3 |
CPIA2_VC_VC_CLOCKS_LOGDIV2);
}
} else {
if (cam->params.pnp_id.device_type == DEVICE_STV_672) {
cmd.buffer.registers[i++].value =
(u8) (CPIA2_VC_VC_672_CLOCKS_CIF_DIV_BY_3 |
CPIA2_VC_VC_CLOCKS_LOGDIV0);
}
else {
cmd.buffer.registers[i++].value =
(u8) (CPIA2_VC_VC_676_CLOCKS_CIF_DIV_BY_3 |
CPIA2_VC_VC_676_CLOCKS_SCALING |
CPIA2_VC_VC_CLOCKS_LOGDIV0);
}
}
DBG("VC_Clocks (0xc4) = 0x%0X\n", cmd.buffer.registers[i-1].value);
/* Input reqWidth from VC */
cmd.buffer.registers[i].index = CPIA2_VC_VC_IHSIZE_LO;
if (image_type == VIDEOSIZE_QCIF)
cmd.buffer.registers[i++].value =
(u8) (STV_IMAGE_QCIF_COLS / 4);
else
cmd.buffer.registers[i++].value =
(u8) (STV_IMAGE_CIF_COLS / 4);
/* Timings */
cmd.buffer.registers[i].index = CPIA2_VC_VC_XLIM_HI;
if (image_type == VIDEOSIZE_QCIF)
cmd.buffer.registers[i++].value = (u8) 0;
else
cmd.buffer.registers[i++].value = (u8) 1;
cmd.buffer.registers[i].index = CPIA2_VC_VC_XLIM_LO;
if (image_type == VIDEOSIZE_QCIF)
cmd.buffer.registers[i++].value = (u8) 208;
else
cmd.buffer.registers[i++].value = (u8) 160;
cmd.buffer.registers[i].index = CPIA2_VC_VC_YLIM_HI;
if (image_type == VIDEOSIZE_QCIF)
cmd.buffer.registers[i++].value = (u8) 0;
else
cmd.buffer.registers[i++].value = (u8) 1;
cmd.buffer.registers[i].index = CPIA2_VC_VC_YLIM_LO;
if (image_type == VIDEOSIZE_QCIF)
cmd.buffer.registers[i++].value = (u8) 160;
else
cmd.buffer.registers[i++].value = (u8) 64;
/* Output Image Size */
cmd.buffer.registers[i].index = CPIA2_VC_VC_OHSIZE;
cmd.buffer.registers[i++].value = cam->params.roi.width / 4;
cmd.buffer.registers[i].index = CPIA2_VC_VC_OVSIZE;
cmd.buffer.registers[i++].value = cam->params.roi.height / 4;
/* Cropping */
cmd.buffer.registers[i].index = CPIA2_VC_VC_HCROP;
if (image_type == VIDEOSIZE_QCIF)
cmd.buffer.registers[i++].value =
(u8) (((STV_IMAGE_QCIF_COLS / 4) - (width / 4)) / 2);
else
cmd.buffer.registers[i++].value =
(u8) (((STV_IMAGE_CIF_COLS / 4) - (width / 4)) / 2);
cmd.buffer.registers[i].index = CPIA2_VC_VC_VCROP;
if (image_type == VIDEOSIZE_QCIF)
cmd.buffer.registers[i++].value =
(u8) (((STV_IMAGE_QCIF_ROWS / 4) - (height / 4)) / 2);
else
cmd.buffer.registers[i++].value =
(u8) (((STV_IMAGE_CIF_ROWS / 4) - (height / 4)) / 2);
/* Scaling registers (defaults) */
cmd.buffer.registers[i].index = CPIA2_VC_VC_HPHASE;
cmd.buffer.registers[i++].value = (u8) 0;
cmd.buffer.registers[i].index = CPIA2_VC_VC_VPHASE;
cmd.buffer.registers[i++].value = (u8) 0;
cmd.buffer.registers[i].index = CPIA2_VC_VC_HISPAN;
cmd.buffer.registers[i++].value = (u8) 31;
cmd.buffer.registers[i].index = CPIA2_VC_VC_VISPAN;
cmd.buffer.registers[i++].value = (u8) 31;
cmd.buffer.registers[i].index = CPIA2_VC_VC_HICROP;
cmd.buffer.registers[i++].value = (u8) 0;
cmd.buffer.registers[i].index = CPIA2_VC_VC_VICROP;
cmd.buffer.registers[i++].value = (u8) 0;
cmd.buffer.registers[i].index = CPIA2_VC_VC_HFRACT;
cmd.buffer.registers[i++].value = (u8) 0x81; /* = 8/1 = 8 (HIBYTE/LOBYTE) */
cmd.buffer.registers[i].index = CPIA2_VC_VC_VFRACT;
cmd.buffer.registers[i++].value = (u8) 0x81; /* = 8/1 = 8 (HIBYTE/LOBYTE) */
cmd.reg_count = i;
cpia2_send_command(cam, &cmd);
return i;
}
/******************************************************************************
*
* config_sensor_500(cam)
*
*****************************************************************************/
static int config_sensor_500(struct camera_data *cam,
int req_width, int req_height)
{
struct cpia2_command cmd;
int i = 0;
int image_size = VIDEOSIZE_CIF;
int image_type = VIDEOSIZE_VGA;
int width = req_width;
int height = req_height;
unsigned int device = cam->params.pnp_id.device_type;
image_size = cpia2_match_video_size(width, height);
if (width > STV_IMAGE_CIF_COLS || height > STV_IMAGE_CIF_ROWS)
image_type = VIDEOSIZE_VGA;
else if (width > STV_IMAGE_QVGA_COLS || height > STV_IMAGE_QVGA_ROWS)
image_type = VIDEOSIZE_CIF;
else if (width > STV_IMAGE_QCIF_COLS || height > STV_IMAGE_QCIF_ROWS)
image_type = VIDEOSIZE_QVGA;
else
image_type = VIDEOSIZE_QCIF;
if (image_size >= 0) {
set_vw_size(cam, image_size);
width = cam->params.roi.width;
height = cam->params.roi.height;
} else {
ERR("ConfigSensor500 failed\n");
return -EINVAL;
}
DBG("image_size = %d, width = %d, height = %d, type = %d\n",
image_size, width, height, image_type);
cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VC;
cmd.direction = TRANSFER_WRITE;
i = 0;
/* VC Format */
cmd.buffer.registers[i].index = CPIA2_VC_VC_FORMAT;
cmd.buffer.registers[i].value = (u8) CPIA2_VC_VC_FORMAT_UFIRST;
if (image_type == VIDEOSIZE_QCIF)
cmd.buffer.registers[i].value |= (u8) CPIA2_VC_VC_FORMAT_DECIMATING;
i++;
/* VC Clocks */
cmd.buffer.registers[i].index = CPIA2_VC_VC_CLOCKS;
if (device == DEVICE_STV_672) {
if (image_type == VIDEOSIZE_VGA)
cmd.buffer.registers[i].value =
(u8)CPIA2_VC_VC_CLOCKS_LOGDIV1;
else
cmd.buffer.registers[i].value =
(u8)(CPIA2_VC_VC_672_CLOCKS_SCALING |
CPIA2_VC_VC_CLOCKS_LOGDIV3);
} else {
if (image_type == VIDEOSIZE_VGA)
cmd.buffer.registers[i].value =
(u8)CPIA2_VC_VC_CLOCKS_LOGDIV0;
else
cmd.buffer.registers[i].value =
(u8)(CPIA2_VC_VC_676_CLOCKS_SCALING |
CPIA2_VC_VC_CLOCKS_LOGDIV2);
}
i++;
DBG("VC_CLOCKS = 0x%X\n", cmd.buffer.registers[i-1].value);
/* Input width from VP */
cmd.buffer.registers[i].index = CPIA2_VC_VC_IHSIZE_LO;
if (image_type == VIDEOSIZE_VGA)
cmd.buffer.registers[i].value =
(u8) (STV_IMAGE_VGA_COLS / 4);
else
cmd.buffer.registers[i].value =
(u8) (STV_IMAGE_QVGA_COLS / 4);
i++;
DBG("Input width = %d\n", cmd.buffer.registers[i-1].value);
/* Timings */
cmd.buffer.registers[i].index = CPIA2_VC_VC_XLIM_HI;
if (image_type == VIDEOSIZE_VGA)
cmd.buffer.registers[i++].value = (u8) 2;
else
cmd.buffer.registers[i++].value = (u8) 1;
cmd.buffer.registers[i].index = CPIA2_VC_VC_XLIM_LO;
if (image_type == VIDEOSIZE_VGA)
cmd.buffer.registers[i++].value = (u8) 250;
else if (image_type == VIDEOSIZE_QVGA)
cmd.buffer.registers[i++].value = (u8) 125;
else
cmd.buffer.registers[i++].value = (u8) 160;
cmd.buffer.registers[i].index = CPIA2_VC_VC_YLIM_HI;
if (image_type == VIDEOSIZE_VGA)
cmd.buffer.registers[i++].value = (u8) 2;
else
cmd.buffer.registers[i++].value = (u8) 1;
cmd.buffer.registers[i].index = CPIA2_VC_VC_YLIM_LO;
if (image_type == VIDEOSIZE_VGA)
cmd.buffer.registers[i++].value = (u8) 12;
else if (image_type == VIDEOSIZE_QVGA)
cmd.buffer.registers[i++].value = (u8) 64;
else
cmd.buffer.registers[i++].value = (u8) 6;
/* Output Image Size */
cmd.buffer.registers[i].index = CPIA2_VC_VC_OHSIZE;
if (image_type == VIDEOSIZE_QCIF)
cmd.buffer.registers[i++].value = STV_IMAGE_CIF_COLS / 4;
else
cmd.buffer.registers[i++].value = width / 4;
cmd.buffer.registers[i].index = CPIA2_VC_VC_OVSIZE;
if (image_type == VIDEOSIZE_QCIF)
cmd.buffer.registers[i++].value = STV_IMAGE_CIF_ROWS / 4;
else
cmd.buffer.registers[i++].value = height / 4;
/* Cropping */
cmd.buffer.registers[i].index = CPIA2_VC_VC_HCROP;
if (image_type == VIDEOSIZE_VGA)
cmd.buffer.registers[i++].value =
(u8) (((STV_IMAGE_VGA_COLS / 4) - (width / 4)) / 2);
else if (image_type == VIDEOSIZE_QVGA)
cmd.buffer.registers[i++].value =
(u8) (((STV_IMAGE_QVGA_COLS / 4) - (width / 4)) / 2);
else if (image_type == VIDEOSIZE_CIF)
cmd.buffer.registers[i++].value =
(u8) (((STV_IMAGE_CIF_COLS / 4) - (width / 4)) / 2);
else /*if (image_type == VIDEOSIZE_QCIF)*/
cmd.buffer.registers[i++].value =
(u8) (((STV_IMAGE_QCIF_COLS / 4) - (width / 4)) / 2);
cmd.buffer.registers[i].index = CPIA2_VC_VC_VCROP;
if (image_type == VIDEOSIZE_VGA)
cmd.buffer.registers[i++].value =
(u8) (((STV_IMAGE_VGA_ROWS / 4) - (height / 4)) / 2);
else if (image_type == VIDEOSIZE_QVGA)
cmd.buffer.registers[i++].value =
(u8) (((STV_IMAGE_QVGA_ROWS / 4) - (height / 4)) / 2);
else if (image_type == VIDEOSIZE_CIF)
cmd.buffer.registers[i++].value =
(u8) (((STV_IMAGE_CIF_ROWS / 4) - (height / 4)) / 2);
else /*if (image_type == VIDEOSIZE_QCIF)*/
cmd.buffer.registers[i++].value =
(u8) (((STV_IMAGE_QCIF_ROWS / 4) - (height / 4)) / 2);
/* Scaling registers (defaults) */
cmd.buffer.registers[i].index = CPIA2_VC_VC_HPHASE;
if (image_type == VIDEOSIZE_CIF || image_type == VIDEOSIZE_QCIF)
cmd.buffer.registers[i++].value = (u8) 36;
else
cmd.buffer.registers[i++].value = (u8) 0;
cmd.buffer.registers[i].index = CPIA2_VC_VC_VPHASE;
if (image_type == VIDEOSIZE_CIF || image_type == VIDEOSIZE_QCIF)
cmd.buffer.registers[i++].value = (u8) 32;
else
cmd.buffer.registers[i++].value = (u8) 0;
cmd.buffer.registers[i].index = CPIA2_VC_VC_HISPAN;
if (image_type == VIDEOSIZE_CIF || image_type == VIDEOSIZE_QCIF)
cmd.buffer.registers[i++].value = (u8) 26;
else
cmd.buffer.registers[i++].value = (u8) 31;
cmd.buffer.registers[i].index = CPIA2_VC_VC_VISPAN;
if (image_type == VIDEOSIZE_CIF || image_type == VIDEOSIZE_QCIF)
cmd.buffer.registers[i++].value = (u8) 21;
else
cmd.buffer.registers[i++].value = (u8) 31;
cmd.buffer.registers[i].index = CPIA2_VC_VC_HICROP;
cmd.buffer.registers[i++].value = (u8) 0;
cmd.buffer.registers[i].index = CPIA2_VC_VC_VICROP;
cmd.buffer.registers[i++].value = (u8) 0;
cmd.buffer.registers[i].index = CPIA2_VC_VC_HFRACT;
if (image_type == VIDEOSIZE_CIF || image_type == VIDEOSIZE_QCIF)
cmd.buffer.registers[i++].value = (u8) 0x2B; /* 2/11 */
else
cmd.buffer.registers[i++].value = (u8) 0x81; /* 8/1 */
cmd.buffer.registers[i].index = CPIA2_VC_VC_VFRACT;
if (image_type == VIDEOSIZE_CIF || image_type == VIDEOSIZE_QCIF)
cmd.buffer.registers[i++].value = (u8) 0x13; /* 1/3 */
else
cmd.buffer.registers[i++].value = (u8) 0x81; /* 8/1 */
cmd.reg_count = i;
cpia2_send_command(cam, &cmd);
return i;
}
/******************************************************************************
*
* setallproperties
*
* This sets all user changeable properties to the values in cam->params.
*****************************************************************************/
static int set_all_properties(struct camera_data *cam)
{
/**
* Don't set target_kb here, it will be set later.
* framerate and user_mode were already set (set_default_user_mode).
**/
cpia2_usb_change_streaming_alternate(cam,
cam->params.camera_state.stream_mode);
cpia2_do_command(cam,
CPIA2_CMD_SET_VC_MP_GPIO_DIRECTION,
TRANSFER_WRITE, cam->params.vp_params.gpio_direction);
cpia2_do_command(cam, CPIA2_CMD_SET_VC_MP_GPIO_DATA, TRANSFER_WRITE,
cam->params.vp_params.gpio_data);
v4l2_ctrl_handler_setup(&cam->hdl);
wake_system(cam);
set_lowlight_boost(cam);
return 0;
}
/******************************************************************************
*
* cpia2_save_camera_state
*
*****************************************************************************/
void cpia2_save_camera_state(struct camera_data *cam)
{
cpia2_do_command(cam, CPIA2_CMD_GET_USER_EFFECTS, TRANSFER_READ, 0);
cpia2_do_command(cam, CPIA2_CMD_GET_VC_MP_GPIO_DIRECTION, TRANSFER_READ,
0);
cpia2_do_command(cam, CPIA2_CMD_GET_VC_MP_GPIO_DATA, TRANSFER_READ, 0);
/* Don't get framerate or target_kb. Trust the values we already have */
}
/******************************************************************************
*
* cpia2_set_flicker_mode
*
*****************************************************************************/
int cpia2_set_flicker_mode(struct camera_data *cam, int mode)
{
unsigned char cam_reg;
int err = 0;
if(cam->params.pnp_id.device_type != DEVICE_STV_672)
return -EINVAL;
/* Set the appropriate bits in FLICKER_MODES, preserving the rest */
if((err = cpia2_do_command(cam, CPIA2_CMD_GET_FLICKER_MODES,
TRANSFER_READ, 0)))
return err;
cam_reg = cam->params.flicker_control.cam_register;
switch(mode) {
case NEVER_FLICKER:
cam_reg |= CPIA2_VP_FLICKER_MODES_NEVER_FLICKER;
cam_reg &= ~CPIA2_VP_FLICKER_MODES_50HZ;
break;
case FLICKER_60:
cam_reg &= ~CPIA2_VP_FLICKER_MODES_NEVER_FLICKER;
cam_reg &= ~CPIA2_VP_FLICKER_MODES_50HZ;
break;
case FLICKER_50:
cam_reg &= ~CPIA2_VP_FLICKER_MODES_NEVER_FLICKER;
cam_reg |= CPIA2_VP_FLICKER_MODES_50HZ;
break;
default:
return -EINVAL;
}
if((err = cpia2_do_command(cam, CPIA2_CMD_SET_FLICKER_MODES,
TRANSFER_WRITE, cam_reg)))
return err;
/* Set the appropriate bits in EXP_MODES, preserving the rest */
if((err = cpia2_do_command(cam, CPIA2_CMD_GET_VP_EXP_MODES,
TRANSFER_READ, 0)))
return err;
cam_reg = cam->params.vp_params.exposure_modes;
if (mode == NEVER_FLICKER) {
cam_reg |= CPIA2_VP_EXPOSURE_MODES_INHIBIT_FLICKER;
} else {
cam_reg &= ~CPIA2_VP_EXPOSURE_MODES_INHIBIT_FLICKER;
}
if((err = cpia2_do_command(cam, CPIA2_CMD_SET_VP_EXP_MODES,
TRANSFER_WRITE, cam_reg)))
return err;
if((err = cpia2_do_command(cam, CPIA2_CMD_REHASH_VP4,
TRANSFER_WRITE, 1)))
return err;
switch(mode) {
case NEVER_FLICKER:
case FLICKER_60:
case FLICKER_50:
cam->params.flicker_control.flicker_mode_req = mode;
break;
default:
err = -EINVAL;
}
return err;
}
/******************************************************************************
*
* cpia2_set_property_flip
*
*****************************************************************************/
void cpia2_set_property_flip(struct camera_data *cam, int prop_val)
{
unsigned char cam_reg;
cpia2_do_command(cam, CPIA2_CMD_GET_USER_EFFECTS, TRANSFER_READ, 0);
cam_reg = cam->params.vp_params.user_effects;
if (prop_val)
{
cam_reg |= CPIA2_VP_USER_EFFECTS_FLIP;
}
else
{
cam_reg &= ~CPIA2_VP_USER_EFFECTS_FLIP;
}
cam->params.vp_params.user_effects = cam_reg;
cpia2_do_command(cam, CPIA2_CMD_SET_USER_EFFECTS, TRANSFER_WRITE,
cam_reg);
}
/******************************************************************************
*
* cpia2_set_property_mirror
*
*****************************************************************************/
void cpia2_set_property_mirror(struct camera_data *cam, int prop_val)
{
unsigned char cam_reg;
cpia2_do_command(cam, CPIA2_CMD_GET_USER_EFFECTS, TRANSFER_READ, 0);
cam_reg = cam->params.vp_params.user_effects;
if (prop_val)
{
cam_reg |= CPIA2_VP_USER_EFFECTS_MIRROR;
}
else
{
cam_reg &= ~CPIA2_VP_USER_EFFECTS_MIRROR;
}
cam->params.vp_params.user_effects = cam_reg;
cpia2_do_command(cam, CPIA2_CMD_SET_USER_EFFECTS, TRANSFER_WRITE,
cam_reg);
}
/******************************************************************************
*
* cpia2_set_gpio
*
*****************************************************************************/
int cpia2_set_gpio(struct camera_data *cam, unsigned char setting)
{
int ret;
/* Set the microport direction (register 0x90, should be defined
* already) to 1 (user output), and set the microport data (0x91) to
* the value in the ioctl argument.
*/
ret = cpia2_do_command(cam,
CPIA2_CMD_SET_VC_MP_GPIO_DIRECTION,
CPIA2_VC_MP_DIR_OUTPUT,
255);
if (ret < 0)
return ret;
cam->params.vp_params.gpio_direction = 255;
ret = cpia2_do_command(cam,
CPIA2_CMD_SET_VC_MP_GPIO_DATA,
CPIA2_VC_MP_DIR_OUTPUT,
setting);
if (ret < 0)
return ret;
cam->params.vp_params.gpio_data = setting;
return 0;
}
/******************************************************************************
*
* cpia2_set_fps
*
*****************************************************************************/
int cpia2_set_fps(struct camera_data *cam, int framerate)
{
int retval;
switch(framerate) {
case CPIA2_VP_FRAMERATE_30:
case CPIA2_VP_FRAMERATE_25:
if(cam->params.pnp_id.device_type == DEVICE_STV_672 &&
cam->params.version.sensor_flags ==
CPIA2_VP_SENSOR_FLAGS_500) {
return -EINVAL;
}
/* Fall through */
case CPIA2_VP_FRAMERATE_15:
case CPIA2_VP_FRAMERATE_12_5:
case CPIA2_VP_FRAMERATE_7_5:
case CPIA2_VP_FRAMERATE_6_25:
break;
default:
return -EINVAL;
}
if (cam->params.pnp_id.device_type == DEVICE_STV_672 &&
framerate == CPIA2_VP_FRAMERATE_15)
framerate = 0; /* Work around bug in VP4 */
retval = cpia2_do_command(cam,
CPIA2_CMD_FRAMERATE_REQ,
TRANSFER_WRITE,
framerate);
if(retval == 0)
cam->params.vp_params.frame_rate = framerate;
return retval;
}
/******************************************************************************
*
* cpia2_set_brightness
*
*****************************************************************************/
void cpia2_set_brightness(struct camera_data *cam, unsigned char value)
{
/***
* Don't let the register be set to zero - bug in VP4 - flash of full
* brightness
***/
if (cam->params.pnp_id.device_type == DEVICE_STV_672 && value == 0)
value++;
DBG("Setting brightness to %d (0x%0x)\n", value, value);
cpia2_do_command(cam, CPIA2_CMD_SET_VP_BRIGHTNESS, TRANSFER_WRITE, value);
}
/******************************************************************************
*
* cpia2_set_contrast
*
*****************************************************************************/
void cpia2_set_contrast(struct camera_data *cam, unsigned char value)
{
DBG("Setting contrast to %d (0x%0x)\n", value, value);
cpia2_do_command(cam, CPIA2_CMD_SET_CONTRAST, TRANSFER_WRITE, value);
}
/******************************************************************************
*
* cpia2_set_saturation
*
*****************************************************************************/
void cpia2_set_saturation(struct camera_data *cam, unsigned char value)
{
DBG("Setting saturation to %d (0x%0x)\n", value, value);
cpia2_do_command(cam,CPIA2_CMD_SET_VP_SATURATION, TRANSFER_WRITE,value);
}
/******************************************************************************
*
* wake_system
*
*****************************************************************************/
static void wake_system(struct camera_data *cam)
{
cpia2_do_command(cam, CPIA2_CMD_SET_WAKEUP, TRANSFER_WRITE, 0);
}
/******************************************************************************
*
* set_lowlight_boost
*
* Valid for STV500 sensor only
*****************************************************************************/
static void set_lowlight_boost(struct camera_data *cam)
{
struct cpia2_command cmd;
if (cam->params.pnp_id.device_type != DEVICE_STV_672 ||
cam->params.version.sensor_flags != CPIA2_VP_SENSOR_FLAGS_500)
return;
cmd.direction = TRANSFER_WRITE;
cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
cmd.reg_count = 3;
cmd.start = CPIA2_VP_RAM_ADDR_H;
cmd.buffer.block_data[0] = 0; /* High byte of address to write to */
cmd.buffer.block_data[1] = 0x59; /* Low byte of address to write to */
cmd.buffer.block_data[2] = 0; /* High byte of data to write */
cpia2_send_command(cam, &cmd);
if (cam->params.vp_params.lowlight_boost) {
cmd.buffer.block_data[0] = 0x02; /* Low byte data to write */
} else {
cmd.buffer.block_data[0] = 0x06;
}
cmd.start = CPIA2_VP_RAM_DATA;
cmd.reg_count = 1;
cpia2_send_command(cam, &cmd);
/* Rehash the VP4 values */
cpia2_do_command(cam, CPIA2_CMD_REHASH_VP4, TRANSFER_WRITE, 1);
}
/******************************************************************************
*
* cpia2_set_format
*
* Assumes that new size is already set in param struct.
*****************************************************************************/
void cpia2_set_format(struct camera_data *cam)
{
cam->flush = true;
cpia2_usb_stream_pause(cam);
/* reset camera to new size */
cpia2_set_low_power(cam);
cpia2_reset_camera(cam);
cam->flush = false;
cpia2_dbg_dump_registers(cam);
cpia2_usb_stream_resume(cam);
}
/******************************************************************************
*
* cpia2_dbg_dump_registers
*
*****************************************************************************/
void cpia2_dbg_dump_registers(struct camera_data *cam)
{
#ifdef _CPIA2_DEBUG_
struct cpia2_command cmd;
if (!(debugs_on & DEBUG_DUMP_REGS))
return;
cmd.direction = TRANSFER_READ;
/* Start with bank 0 (SYSTEM) */
cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_SYSTEM;
cmd.reg_count = 3;
cmd.start = 0;
cpia2_send_command(cam, &cmd);
printk(KERN_DEBUG "System Device Hi = 0x%X\n",
cmd.buffer.block_data[0]);
printk(KERN_DEBUG "System Device Lo = 0x%X\n",
cmd.buffer.block_data[1]);
printk(KERN_DEBUG "System_system control = 0x%X\n",
cmd.buffer.block_data[2]);
/* Bank 1 (VC) */
cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC;
cmd.reg_count = 4;
cmd.start = 0x80;
cpia2_send_command(cam, &cmd);
printk(KERN_DEBUG "ASIC_ID = 0x%X\n",
cmd.buffer.block_data[0]);
printk(KERN_DEBUG "ASIC_REV = 0x%X\n",
cmd.buffer.block_data[1]);
printk(KERN_DEBUG "PW_CONTRL = 0x%X\n",
cmd.buffer.block_data[2]);
printk(KERN_DEBUG "WAKEUP = 0x%X\n",
cmd.buffer.block_data[3]);
cmd.start = 0xA0; /* ST_CTRL */
cmd.reg_count = 1;
cpia2_send_command(cam, &cmd);
printk(KERN_DEBUG "Stream ctrl = 0x%X\n",
cmd.buffer.block_data[0]);
cmd.start = 0xA4; /* Stream status */
cpia2_send_command(cam, &cmd);
printk(KERN_DEBUG "Stream status = 0x%X\n",
cmd.buffer.block_data[0]);
cmd.start = 0xA8; /* USB status */
cmd.reg_count = 3;
cpia2_send_command(cam, &cmd);
printk(KERN_DEBUG "USB_CTRL = 0x%X\n",
cmd.buffer.block_data[0]);
printk(KERN_DEBUG "USB_STRM = 0x%X\n",
cmd.buffer.block_data[1]);
printk(KERN_DEBUG "USB_STATUS = 0x%X\n",
cmd.buffer.block_data[2]);
cmd.start = 0xAF; /* USB settings */
cmd.reg_count = 1;
cpia2_send_command(cam, &cmd);
printk(KERN_DEBUG "USB settings = 0x%X\n",
cmd.buffer.block_data[0]);
cmd.start = 0xC0; /* VC stuff */
cmd.reg_count = 26;
cpia2_send_command(cam, &cmd);
printk(KERN_DEBUG "VC Control = 0x%0X\n",
cmd.buffer.block_data[0]);
printk(KERN_DEBUG "VC Format = 0x%0X\n",
cmd.buffer.block_data[3]);
printk(KERN_DEBUG "VC Clocks = 0x%0X\n",
cmd.buffer.block_data[4]);
printk(KERN_DEBUG "VC IHSize = 0x%0X\n",
cmd.buffer.block_data[5]);
printk(KERN_DEBUG "VC Xlim Hi = 0x%0X\n",
cmd.buffer.block_data[6]);
printk(KERN_DEBUG "VC XLim Lo = 0x%0X\n",
cmd.buffer.block_data[7]);
printk(KERN_DEBUG "VC YLim Hi = 0x%0X\n",
cmd.buffer.block_data[8]);
printk(KERN_DEBUG "VC YLim Lo = 0x%0X\n",
cmd.buffer.block_data[9]);
printk(KERN_DEBUG "VC OHSize = 0x%0X\n",
cmd.buffer.block_data[10]);
printk(KERN_DEBUG "VC OVSize = 0x%0X\n",
cmd.buffer.block_data[11]);
printk(KERN_DEBUG "VC HCrop = 0x%0X\n",
cmd.buffer.block_data[12]);
printk(KERN_DEBUG "VC VCrop = 0x%0X\n",
cmd.buffer.block_data[13]);
printk(KERN_DEBUG "VC HPhase = 0x%0X\n",
cmd.buffer.block_data[14]);
printk(KERN_DEBUG "VC VPhase = 0x%0X\n",
cmd.buffer.block_data[15]);
printk(KERN_DEBUG "VC HIspan = 0x%0X\n",
cmd.buffer.block_data[16]);
printk(KERN_DEBUG "VC VIspan = 0x%0X\n",
cmd.buffer.block_data[17]);
printk(KERN_DEBUG "VC HiCrop = 0x%0X\n",
cmd.buffer.block_data[18]);
printk(KERN_DEBUG "VC ViCrop = 0x%0X\n",
cmd.buffer.block_data[19]);
printk(KERN_DEBUG "VC HiFract = 0x%0X\n",
cmd.buffer.block_data[20]);
printk(KERN_DEBUG "VC ViFract = 0x%0X\n",
cmd.buffer.block_data[21]);
printk(KERN_DEBUG "VC JPeg Opt = 0x%0X\n",
cmd.buffer.block_data[22]);
printk(KERN_DEBUG "VC Creep Per = 0x%0X\n",
cmd.buffer.block_data[23]);
printk(KERN_DEBUG "VC User Sq. = 0x%0X\n",
cmd.buffer.block_data[24]);
printk(KERN_DEBUG "VC Target KB = 0x%0X\n",
cmd.buffer.block_data[25]);
/*** VP ***/
cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
cmd.reg_count = 14;
cmd.start = 0;
cpia2_send_command(cam, &cmd);
printk(KERN_DEBUG "VP Dev Hi = 0x%0X\n",
cmd.buffer.block_data[0]);
printk(KERN_DEBUG "VP Dev Lo = 0x%0X\n",
cmd.buffer.block_data[1]);
printk(KERN_DEBUG "VP Sys State = 0x%0X\n",
cmd.buffer.block_data[2]);
printk(KERN_DEBUG "VP Sys Ctrl = 0x%0X\n",
cmd.buffer.block_data[3]);
printk(KERN_DEBUG "VP Sensor flg = 0x%0X\n",
cmd.buffer.block_data[5]);
printk(KERN_DEBUG "VP Sensor Rev = 0x%0X\n",
cmd.buffer.block_data[6]);
printk(KERN_DEBUG "VP Dev Config = 0x%0X\n",
cmd.buffer.block_data[7]);
printk(KERN_DEBUG "VP GPIO_DIR = 0x%0X\n",
cmd.buffer.block_data[8]);
printk(KERN_DEBUG "VP GPIO_DATA = 0x%0X\n",
cmd.buffer.block_data[9]);
printk(KERN_DEBUG "VP Ram ADDR H = 0x%0X\n",
cmd.buffer.block_data[10]);
printk(KERN_DEBUG "VP Ram ADDR L = 0x%0X\n",
cmd.buffer.block_data[11]);
printk(KERN_DEBUG "VP RAM Data = 0x%0X\n",
cmd.buffer.block_data[12]);
printk(KERN_DEBUG "Do Call = 0x%0X\n",
cmd.buffer.block_data[13]);
if (cam->params.pnp_id.device_type == DEVICE_STV_672) {
cmd.reg_count = 9;
cmd.start = 0x0E;
cpia2_send_command(cam, &cmd);
printk(KERN_DEBUG "VP Clock Ctrl = 0x%0X\n",
cmd.buffer.block_data[0]);
printk(KERN_DEBUG "VP Patch Rev = 0x%0X\n",
cmd.buffer.block_data[1]);
printk(KERN_DEBUG "VP Vid Mode = 0x%0X\n",
cmd.buffer.block_data[2]);
printk(KERN_DEBUG "VP Framerate = 0x%0X\n",
cmd.buffer.block_data[3]);
printk(KERN_DEBUG "VP UserEffect = 0x%0X\n",
cmd.buffer.block_data[4]);
printk(KERN_DEBUG "VP White Bal = 0x%0X\n",
cmd.buffer.block_data[5]);
printk(KERN_DEBUG "VP WB thresh = 0x%0X\n",
cmd.buffer.block_data[6]);
printk(KERN_DEBUG "VP Exp Modes = 0x%0X\n",
cmd.buffer.block_data[7]);
printk(KERN_DEBUG "VP Exp Target = 0x%0X\n",
cmd.buffer.block_data[8]);
cmd.reg_count = 1;
cmd.start = 0x1B;
cpia2_send_command(cam, &cmd);
printk(KERN_DEBUG "VP FlickerMds = 0x%0X\n",
cmd.buffer.block_data[0]);
} else {
cmd.reg_count = 8 ;
cmd.start = 0x0E;
cpia2_send_command(cam, &cmd);
printk(KERN_DEBUG "VP Clock Ctrl = 0x%0X\n",
cmd.buffer.block_data[0]);
printk(KERN_DEBUG "VP Patch Rev = 0x%0X\n",
cmd.buffer.block_data[1]);
printk(KERN_DEBUG "VP Vid Mode = 0x%0X\n",
cmd.buffer.block_data[5]);
printk(KERN_DEBUG "VP Framerate = 0x%0X\n",
cmd.buffer.block_data[6]);
printk(KERN_DEBUG "VP UserEffect = 0x%0X\n",
cmd.buffer.block_data[7]);
cmd.reg_count = 1;
cmd.start = CPIA2_VP5_EXPOSURE_TARGET;
cpia2_send_command(cam, &cmd);
printk(KERN_DEBUG "VP5 Exp Target= 0x%0X\n",
cmd.buffer.block_data[0]);
cmd.reg_count = 4;
cmd.start = 0x3A;
cpia2_send_command(cam, &cmd);
printk(KERN_DEBUG "VP5 MY Black = 0x%0X\n",
cmd.buffer.block_data[0]);
printk(KERN_DEBUG "VP5 MCY Range = 0x%0X\n",
cmd.buffer.block_data[1]);
printk(KERN_DEBUG "VP5 MYCEILING = 0x%0X\n",
cmd.buffer.block_data[2]);
printk(KERN_DEBUG "VP5 MCUV Sat = 0x%0X\n",
cmd.buffer.block_data[3]);
}
#endif
}
/******************************************************************************
*
* reset_camera_struct
*
* Sets all values to the defaults
*****************************************************************************/
static void reset_camera_struct(struct camera_data *cam)
{
/***
* The following parameter values are the defaults from the register map.
***/
cam->params.vp_params.lowlight_boost = 0;
/* FlickerModes */
cam->params.flicker_control.flicker_mode_req = NEVER_FLICKER;
/* jpeg params */
cam->params.compression.jpeg_options = CPIA2_VC_VC_JPEG_OPT_DEFAULT;
cam->params.compression.creep_period = 2;
cam->params.compression.user_squeeze = 20;
cam->params.compression.inhibit_htables = false;
/* gpio params */
cam->params.vp_params.gpio_direction = 0; /* write, the default safe mode */
cam->params.vp_params.gpio_data = 0;
/* Target kb params */
cam->params.vc_params.quality = 100;
/***
* Set Sensor FPS as fast as possible.
***/
if(cam->params.pnp_id.device_type == DEVICE_STV_672) {
if(cam->params.version.sensor_flags == CPIA2_VP_SENSOR_FLAGS_500)
cam->params.vp_params.frame_rate = CPIA2_VP_FRAMERATE_15;
else
cam->params.vp_params.frame_rate = CPIA2_VP_FRAMERATE_30;
} else {
cam->params.vp_params.frame_rate = CPIA2_VP_FRAMERATE_30;
}
/***
* Set default video mode as large as possible :
* for vga sensor set to vga, for cif sensor set to CIF.
***/
if (cam->params.version.sensor_flags == CPIA2_VP_SENSOR_FLAGS_500) {
cam->sensor_type = CPIA2_SENSOR_500;
cam->video_size = VIDEOSIZE_VGA;
cam->params.roi.width = STV_IMAGE_VGA_COLS;
cam->params.roi.height = STV_IMAGE_VGA_ROWS;
} else {
cam->sensor_type = CPIA2_SENSOR_410;
cam->video_size = VIDEOSIZE_CIF;
cam->params.roi.width = STV_IMAGE_CIF_COLS;
cam->params.roi.height = STV_IMAGE_CIF_ROWS;
}
cam->width = cam->params.roi.width;
cam->height = cam->params.roi.height;
}
/******************************************************************************
*
* cpia2_init_camera_struct
*
* Initializes camera struct, does not call reset to fill in defaults.
*****************************************************************************/
struct camera_data *cpia2_init_camera_struct(struct usb_interface *intf)
{
struct camera_data *cam;
cam = kzalloc(sizeof(*cam), GFP_KERNEL);
if (!cam) {
ERR("couldn't kmalloc cpia2 struct\n");
return NULL;
}
cam->v4l2_dev.release = cpia2_camera_release;
if (v4l2_device_register(&intf->dev, &cam->v4l2_dev) < 0) {
v4l2_err(&cam->v4l2_dev, "couldn't register v4l2_device\n");
kfree(cam);
return NULL;
}
mutex_init(&cam->v4l2_lock);
init_waitqueue_head(&cam->wq_stream);
return cam;
}
/******************************************************************************
*
* cpia2_init_camera
*
* Initializes camera.
*****************************************************************************/
int cpia2_init_camera(struct camera_data *cam)
{
DBG("Start\n");
cam->mmapped = false;
/* Get sensor and asic types before reset. */
cpia2_set_high_power(cam);
cpia2_get_version_info(cam);
if (cam->params.version.asic_id != CPIA2_ASIC_672) {
ERR("Device IO error (asicID has incorrect value of 0x%X\n",
cam->params.version.asic_id);
return -ENODEV;
}
/* Set GPIO direction and data to a safe state. */
cpia2_do_command(cam, CPIA2_CMD_SET_VC_MP_GPIO_DIRECTION,
TRANSFER_WRITE, 0);
cpia2_do_command(cam, CPIA2_CMD_SET_VC_MP_GPIO_DATA,
TRANSFER_WRITE, 0);
/* resetting struct requires version info for sensor and asic types */
reset_camera_struct(cam);
cpia2_set_low_power(cam);
DBG("End\n");
return 0;
}
/******************************************************************************
*
* cpia2_allocate_buffers
*
*****************************************************************************/
int cpia2_allocate_buffers(struct camera_data *cam)
{
int i;
if(!cam->buffers) {
u32 size = cam->num_frames*sizeof(struct framebuf);
cam->buffers = kmalloc(size, GFP_KERNEL);
if(!cam->buffers) {
ERR("couldn't kmalloc frame buffer structures\n");
return -ENOMEM;
}
}
if(!cam->frame_buffer) {
cam->frame_buffer = rvmalloc(cam->frame_size*cam->num_frames);
if (!cam->frame_buffer) {
ERR("couldn't vmalloc frame buffer data area\n");
kfree(cam->buffers);
cam->buffers = NULL;
return -ENOMEM;
}
}
for(i=0; i<cam->num_frames-1; ++i) {
cam->buffers[i].next = &cam->buffers[i+1];
cam->buffers[i].data = cam->frame_buffer +i*cam->frame_size;
cam->buffers[i].status = FRAME_EMPTY;
cam->buffers[i].length = 0;
cam->buffers[i].max_length = 0;
cam->buffers[i].num = i;
}
cam->buffers[i].next = cam->buffers;
cam->buffers[i].data = cam->frame_buffer +i*cam->frame_size;
cam->buffers[i].status = FRAME_EMPTY;
cam->buffers[i].length = 0;
cam->buffers[i].max_length = 0;
cam->buffers[i].num = i;
cam->curbuff = cam->buffers;
cam->workbuff = cam->curbuff->next;
DBG("buffers=%p, curbuff=%p, workbuff=%p\n", cam->buffers, cam->curbuff,
cam->workbuff);
return 0;
}
/******************************************************************************
*
* cpia2_free_buffers
*
*****************************************************************************/
void cpia2_free_buffers(struct camera_data *cam)
{
if(cam->buffers) {
kfree(cam->buffers);
cam->buffers = NULL;
}
if(cam->frame_buffer) {
rvfree(cam->frame_buffer, cam->frame_size*cam->num_frames);
cam->frame_buffer = NULL;
}
}
/******************************************************************************
*
* cpia2_read
*
*****************************************************************************/
long cpia2_read(struct camera_data *cam,
char __user *buf, unsigned long count, int noblock)
{
struct framebuf *frame;
if (!count)
return 0;
if (!buf) {
ERR("%s: buffer NULL\n",__func__);
return -EINVAL;
}
if (!cam) {
ERR("%s: Internal error, camera_data NULL!\n",__func__);
return -EINVAL;
}
if (!cam->streaming) {
/* Start streaming */
cpia2_usb_stream_start(cam,
cam->params.camera_state.stream_mode);
}
/* Copy cam->curbuff in case it changes while we're processing */
frame = cam->curbuff;
if (noblock && frame->status != FRAME_READY) {
return -EAGAIN;
}
if (frame->status != FRAME_READY) {
mutex_unlock(&cam->v4l2_lock);
wait_event_interruptible(cam->wq_stream,
!video_is_registered(&cam->vdev) ||
(frame = cam->curbuff)->status == FRAME_READY);
mutex_lock(&cam->v4l2_lock);
if (signal_pending(current))
return -ERESTARTSYS;
if (!video_is_registered(&cam->vdev))
return 0;
}
/* copy data to user space */
if (frame->length > count)
return -EFAULT;
if (copy_to_user(buf, frame->data, frame->length))
return -EFAULT;
count = frame->length;
frame->status = FRAME_EMPTY;
return count;
}
/******************************************************************************
*
* cpia2_poll
*
*****************************************************************************/
__poll_t cpia2_poll(struct camera_data *cam, struct file *filp,
poll_table *wait)
{
__poll_t status = v4l2_ctrl_poll(filp, wait);
if ((poll_requested_events(wait) & (EPOLLIN | EPOLLRDNORM)) &&
!cam->streaming) {
/* Start streaming */
cpia2_usb_stream_start(cam,
cam->params.camera_state.stream_mode);
}
poll_wait(filp, &cam->wq_stream, wait);
if (cam->curbuff->status == FRAME_READY)
status |= EPOLLIN | EPOLLRDNORM;
return status;
}
/******************************************************************************
*
* cpia2_remap_buffer
*
*****************************************************************************/
int cpia2_remap_buffer(struct camera_data *cam, struct vm_area_struct *vma)
{
const char *adr = (const char *)vma->vm_start;
unsigned long size = vma->vm_end-vma->vm_start;
unsigned long start_offset = vma->vm_pgoff << PAGE_SHIFT;
unsigned long start = (unsigned long) adr;
unsigned long page, pos;
DBG("mmap offset:%ld size:%ld\n", start_offset, size);
if (!video_is_registered(&cam->vdev))
return -ENODEV;
if (size > cam->frame_size*cam->num_frames ||
(start_offset % cam->frame_size) != 0 ||
(start_offset+size > cam->frame_size*cam->num_frames))
return -EINVAL;
pos = ((unsigned long) (cam->frame_buffer)) + start_offset;
while (size > 0) {
page = kvirt_to_pa(pos);
if (remap_pfn_range(vma, start, page >> PAGE_SHIFT, PAGE_SIZE, PAGE_SHARED))
return -EAGAIN;
start += PAGE_SIZE;
pos += PAGE_SIZE;
if (size > PAGE_SIZE)
size -= PAGE_SIZE;
else
size = 0;
}
cam->mmapped = true;
return 0;
}
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