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usec_dev.c
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#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <inttypes.h>
#include <unistd.h>
#include <fcntl.h>
#include <scsi/sg.h>
#include <sys/ioctl.h>
#include "usec_dev.h"
/******************************************************************************/
#define IT8951_USB_INQUIRY (0x12)
#define IT8951_USB_OP_GET_SYS (0x80)
#define IT8951_USB_OP_READ_MEM (0x81)
#define IT8951_USB_OP_WRITE_MEM (0x82)
#define IT8951_USB_OP_READ_REG (0x83)
#define IT8951_USB_OP_WRITE_REG (0x84)
#define IT8951_USB_OP_DPY_AREA (0x94)
#define IT8951_USB_OP_LD_IMG_AREA (0xA2)
#define IT8951_USB_OP_PMIC_CTL (0xA3)
#define IT8951_USB_OP_FSET_TEMP (0xA4)
#define IT8951_USB_OP_FAST_WRITE_MEM (0xA5)
#define IT8951_USB_OP_AUTO_RESET (0xA7)
/******************************************************************************/
typedef struct
{
uint32_t standard_cmd_no;
uint32_t extend_cmd_no;
uint32_t signature;
uint32_t version;
uint32_t width;
uint32_t height;
uint32_t update_buf_base;
uint32_t image_buf_base;
uint32_t temperature_no;
uint32_t mode_no;
uint32_t frame_count[8];
uint32_t num_img_buf;
uint32_t wbf_addr;
uint32_t reserved[9];
void *cmd_info_data[1];
} it8951_sys_info;
typedef struct
{
uint32_t mem_addr;
uint32_t wav_mode;
uint32_t pos_x;
uint32_t pos_y;
uint32_t width;
uint32_t height;
uint32_t engine_index;
} it8951_disp_arg;
typedef struct
{
uint32_t addr;
uint32_t x;
uint32_t y;
uint32_t w;
uint32_t h;
} it8951_load_arg;
typedef struct
{
uint8_t set;
uint8_t val;
} it8951_temp_arg;
typedef struct sg_io_hdr it8951_sg_io_hdr;
enum {
IT8951_TEMP_GET,
IT8951_TEMP_SET
};
/******************************************************************************/
/*
* init_io_hdr()
*/
static it8951_sg_io_hdr *
init_io_hdr (void)
{
it8951_sg_io_hdr *hdr;
hdr = (it8951_sg_io_hdr*) malloc (sizeof(it8951_sg_io_hdr));
memset (hdr, 0, sizeof(it8951_sg_io_hdr));
if (hdr)
{
hdr->interface_id = 'S';
hdr->flags = SG_FLAG_LUN_INHIBIT;
}
return hdr;
}
/*
* destroy_io_hdr()
*/
static void
destroy_io_hdr (it8951_sg_io_hdr *hdr)
{
if (hdr)
free(hdr);
}
/*
* set_xfer_data()
*/
static void
set_xfer_data (it8951_sg_io_hdr *hdr,
void *data,
uint32_t length)
{
if (hdr)
{
hdr->dxferp = data;
hdr->dxfer_len = length;
}
}
/*
* set_sense_data()
*/
static void
set_sense_data (it8951_sg_io_hdr *hdr,
uint8_t *data,
uint32_t length)
{
if (hdr)
{
hdr->sbp = data;
hdr->mx_sb_len = length;
}
}
/*
* data_swap_32()
*/
static uint32_t
data_swap_32 (uint32_t input)
{
return ((input & 0xFF) << 24) | ((input >> 8 & 0xFF) << 16) | \
((input >> 16 & 0xFF) << 8) | (input >> 24 & 0xFF);
}
/******************************************************************************/
/******************************************************************************/
/******************************************************************************/
/*
* scsi_it8951_cmd_inquiry()
*/
static uint8_t
scsi_it8951_cmd_inquiry (int fd,
it8951_sg_io_hdr *hdr)
{
uint8_t cdb[16];
hdr->cmd_len = 16;
for (uint8_t i = 0; i < (hdr->cmd_len); i++)
{
switch(i)
{
case 0:
cdb[i] = IT8951_USB_INQUIRY;
break;
default:
cdb[i] = 0x00;
break;
}
}
hdr->cmdp = cdb;
hdr->dxfer_direction = SG_DXFER_FROM_DEV;
if (ioctl (fd, SG_IO, hdr) < 0)
return USEC_DEV_ERR;
return USEC_DEV_OK;
}
/*
* scsi_it8951_cmd_system_info()
*/
static uint8_t
scsi_it8951_cmd_system_info (int fd,
it8951_sg_io_hdr *hdr)
{
uint8_t cdb[16];
hdr->cmd_len = 16;
for (uint8_t i = 0; i < (hdr->cmd_len); i++)
{
switch(i)
{
case 0:
cdb[i] = 0xFE;
break;
case 2:
cdb[i] = 0x38;
break;
case 3:
cdb[i] = 0x39;
break;
case 4:
cdb[i] = 0x35;
break;
case 5:
cdb[i] = 0x31;
break;
case 6:
cdb[i] = IT8951_USB_OP_GET_SYS;
break;
case 8:
cdb[i] = 0x01;
break;
case 10:
cdb[i] = 0x02;
break;
default:
cdb[i] = 0x00;
}
}
hdr->cmdp = cdb;
hdr->dxfer_direction = SG_DXFER_FROM_DEV;
if (ioctl (fd, SG_IO, hdr) < 0)
return USEC_DEV_ERR;
return USEC_DEV_OK;
}
/*
* scsi_it8951_cmd_read_mem()
*/
static uint8_t
scsi_it8951_cmd_read_mem (int fd,
it8951_sg_io_hdr *hdr,
uint32_t addr,
uint16_t length)
{
uint8_t cdb[16];
hdr->cmd_len = 16;
for (uint8_t i = 0; i < (hdr->cmd_len); i++)
{
switch(i)
{
case 0:
cdb[i] = 0xFE;
break;
case 2:
cdb[i] = (uint8_t)((addr >> 24) & 0xFF);
break;
case 3:
cdb[i] = (uint8_t)((addr >> 16) & 0xFF);
break;
case 4:
cdb[i] = (uint8_t)((addr >> 8) & 0xFF);
break;
case 5:
cdb[i] = (uint8_t)(addr & 0xFF);
break;
case 6:
cdb[i] = IT8951_USB_OP_READ_MEM;
break;
case 7:
cdb[i] = (uint8_t)((length >> 8) & 0xFF);
break;
case 8:
cdb[i] = (uint8_t)(length & 0xFF);
break;
default:
cdb[i] = 0x00;
}
}
hdr->cmdp = cdb;
hdr->dxfer_direction = SG_DXFER_FROM_DEV;
if (ioctl (fd, SG_IO, hdr) < 0)
return USEC_DEV_ERR;
return USEC_DEV_OK;
}
/*
* scsi_it8951_cmd_write_mem()
*/
static uint8_t
scsi_it8951_cmd_write_mem (int fd,
it8951_sg_io_hdr *hdr,
uint32_t addr,
uint16_t length)
{
uint8_t cdb[16];
hdr->cmd_len = 16;
for (uint8_t i = 0; i < (hdr->cmd_len); i++)
{
switch(i)
{
case 0:
cdb[i] = 0xFE;
break;
case 2:
cdb[i] = (uint8_t)((addr >> 24) & 0xFF);
break;
case 3:
cdb[i] = (uint8_t)((addr >> 16) & 0xFF);
break;
case 4:
cdb[i] = (uint8_t)((addr >> 8) & 0xFF);
break;
case 5:
cdb[i] = (uint8_t)(addr & 0xFF);
break;
case 6:
#if USEC_DEV_FAST_WRITE
cdb[i] = IT8951_USB_OP_FAST_WRITE_MEM;
#else
cdb[i] = IT8951_USB_OP_WRITE_MEM;
#endif
break;
case 7:
cdb[i] = (uint8_t)((length >> 8) & 0xFF);
break;
case 8:
cdb[i] = (uint8_t)(length & 0xFF);
break;
default:
cdb[i] = 0x00;
}
}
hdr->cmdp = cdb;
hdr->dxfer_direction = SG_DXFER_TO_DEV;
if (ioctl (fd, SG_IO, hdr) < 0)
return USEC_DEV_ERR;
return USEC_DEV_OK;
}
/*
* scsi_it8951_cmd_read_reg()
*/
static uint8_t
scsi_it8951_cmd_read_reg (int fd,
it8951_sg_io_hdr *hdr,
uint32_t addr)
{
uint8_t cdb[16];
hdr->cmd_len = 16;
for (uint8_t i = 0; i < (hdr->cmd_len); i++)
{
switch(i)
{
case 0:
cdb[i] = 0xFE;
break;
case 2:
cdb[i] = (uint8_t)((addr >> 24) & 0xFF);
break;
case 3:
cdb[i] = (uint8_t)((addr >> 16) & 0xFF);
break;
case 4:
cdb[i] = (uint8_t)((addr >> 8) & 0xFF);
break;
case 5:
cdb[i] = (uint8_t)(addr & 0xFF);
break;
case 6:
cdb[i] = IT8951_USB_OP_READ_REG;
break;
case 8:
cdb[i] = 0x04;
break;
default:
cdb[i] = 0x00;
}
}
hdr->cmdp = cdb;
hdr->dxfer_direction = SG_DXFER_FROM_DEV;
if (ioctl (fd, SG_IO, hdr) < 0)
return USEC_DEV_ERR;
return USEC_DEV_OK;
}
/*
* scsi_it8951_cmd_write_reg()
*/
static uint8_t
scsi_it8951_cmd_write_reg (int fd,
it8951_sg_io_hdr *hdr,
uint32_t addr)
{
uint8_t cdb[16];
hdr->cmd_len = 16;
for (uint8_t i = 0; i < (hdr->cmd_len); i++)
{
switch(i)
{
case 0:
cdb[i] = 0xFE;
break;
case 2:
cdb[i] = (uint8_t)((addr >> 24) & 0xFF);
break;
case 3:
cdb[i] = (uint8_t)((addr >> 16) & 0xFF);
break;
case 4:
cdb[i] = (uint8_t)((addr >> 8) & 0xFF);
break;
case 5:
cdb[i] = (uint8_t)(addr & 0xFF);
break;
case 6:
cdb[i] = IT8951_USB_OP_WRITE_REG;
break;
case 8:
cdb[i] = 0x04;
break;
default:
cdb[i] = 0x00;
}
}
hdr->cmdp = cdb;
hdr->dxfer_direction = SG_DXFER_TO_DEV;
if (ioctl (fd, SG_IO, hdr) < 0)
return USEC_DEV_ERR;
return USEC_DEV_OK;
}
/*
* scsi_it8951_cmd_dpy_area()
*/
static uint8_t
scsi_it8951_cmd_dpy_area (int fd,
it8951_sg_io_hdr *hdr)
{
uint8_t cdb[16];
hdr->cmd_len = 16;
for (uint8_t i = 0; i < (hdr->cmd_len); i++)
{
switch(i)
{
case 0:
cdb[i] = 0xFE;
break;
case 6:
cdb[i] = IT8951_USB_OP_DPY_AREA;
break;
default:
cdb[i] = 0x00;
}
}
hdr->cmdp = cdb;
hdr->dxfer_direction = SG_DXFER_TO_DEV;
if (ioctl (fd, SG_IO, hdr) < 0)
return USEC_DEV_ERR;
return USEC_DEV_OK;
}
/*
* scsi_it8951_cmd_load_img()
*/
static uint8_t
scsi_it8951_cmd_load_img (int fd,
it8951_sg_io_hdr *hdr)
{
uint8_t cdb[16];
hdr->cmd_len = 16;
for (uint8_t i = 0; i < (hdr->cmd_len); i++)
{
switch(i)
{
case 0:
cdb[i] = 0xFE;
break;
case 6:
cdb[i] = IT8951_USB_OP_LD_IMG_AREA;
break;
default:
cdb[i] = 0x00;
}
}
hdr->cmdp = cdb;
hdr->dxfer_direction = SG_DXFER_TO_DEV;
if (ioctl (fd, SG_IO, hdr) < 0)
return USEC_DEV_ERR;
return USEC_DEV_OK;
}
/*
* scsi_it8951_cmd_get_set_temp()
*/
static uint8_t
scsi_it8951_cmd_get_set_temp (int fd,
it8951_sg_io_hdr *hdr,
uint8_t temp_option,
uint8_t temp_value)
{
uint8_t cdb[16];
hdr->cmd_len = 16;
for (uint8_t i = 0; i < (hdr->cmd_len); i++)
{
switch(i)
{
case 0:
cdb[i] = 0xFE;
break;
case 6:
cdb[i] = IT8951_USB_OP_FSET_TEMP;
break;
case 7:
cdb[i] = temp_option;
break;
case 8:
cdb[i] = temp_value;
break;
default:
cdb[i] = 0x00;
}
}
hdr->cmdp = cdb;
hdr->dxfer_direction = SG_DXFER_FROM_DEV;
if (ioctl (fd, SG_IO, hdr) < 0)
return USEC_DEV_ERR;
return USEC_DEV_OK;
}
/*
* scsi_it8951_cmd_set_pmic()
*/
static uint8_t
scsi_it8951_cmd_set_pmic (int fd,
it8951_sg_io_hdr *hdr,
uint16_t vcom,
uint8_t set_vcom,
uint8_t set_power,
uint8_t on_off)
{
uint8_t cdb[16];
hdr->cmd_len = 16;
for (uint8_t i = 0; i < (hdr->cmd_len); i++)
{
switch(i)
{
case 0:
cdb[i] = 0xFE;
break;
case 6:
cdb[i] = IT8951_USB_OP_PMIC_CTL;
break;
case 7:
cdb[i] = (uint8_t)((vcom & 0xFF00) >> 8);
break;
case 8:
cdb[i] = (uint8_t)(vcom & 0xFF);
break;
case 9:
cdb[i] = set_vcom;
break;
case 10:
cdb[i] = set_power;
break;
case 11:
cdb[i] = on_off;
break;
default:
cdb[i] = 0x00;
}
}
hdr->cmdp = cdb;
hdr->dxfer_direction = SG_DXFER_FROM_DEV;
if (ioctl (fd, SG_IO, hdr) < 0)
return USEC_DEV_ERR;
return USEC_DEV_OK;
}
/*
* scsi_it8951_cmd_auto_reset()
*/
static uint8_t
scsi_it8951_cmd_auto_reset (int fd,
it8951_sg_io_hdr *hdr)
{
uint8_t cdb[16];
hdr->cmd_len = 16;
for (uint8_t i = 0; i < (hdr->cmd_len); i++)
{
switch(i)
{
case 0:
cdb[i] = 0xFE;
break;
case 6:
cdb[i] = IT8951_USB_OP_AUTO_RESET;
break;
default:
cdb[i] = 0x00;
}
}
hdr->cmdp = cdb;
hdr->dxfer_direction = SG_DXFER_TO_DEV;
if (ioctl (fd, SG_IO, hdr) < 0)
return USEC_DEV_ERR;
return USEC_DEV_OK;
}
/******************************************************************************/
/*
* it8951_cmd_inquiry()
*/
static uint8_t
it8951_cmd_inquiry (usec_ctx *ctx,
uint8_t id)
{
it8951_sg_io_hdr *hdr;
uint8_t data_buffer[USEC_DEV_BLOCK_LEN*256];
uint8_t status;
hdr = init_io_hdr();
set_xfer_data (hdr, data_buffer, USEC_DEV_BLOCK_LEN*256);
set_sense_data (hdr, ctx->dev_sense_buf, USEC_DEV_SENSE_LEN);
status = scsi_it8951_cmd_inquiry (ctx->dev_fd[id], hdr);
destroy_io_hdr(hdr);
return status;
}
/*
* it8951_cmd_system_info()
*/
static uint8_t
it8951_cmd_system_info (usec_ctx *ctx,
uint8_t id,
it8951_sys_info *info)
{
it8951_sg_io_hdr *hdr;
uint8_t status;
hdr = init_io_hdr();
set_xfer_data (hdr, info, (sizeof(it8951_sys_info) / sizeof(uint32_t)));
set_sense_data (hdr, ctx->dev_sense_buf, USEC_DEV_SENSE_LEN);
status = scsi_it8951_cmd_system_info (ctx->dev_fd[id], hdr);
if (status == USEC_DEV_OK)
{
it8951_sys_info *data = hdr->dxferp;
info->standard_cmd_no = data_swap_32 (data->standard_cmd_no);
info->extend_cmd_no = data_swap_32 (data->extend_cmd_no);
info->signature = data_swap_32 (data->signature);
info->version = data_swap_32 (data->version);
info->width = data_swap_32 (data->width);
info->height = data_swap_32 (data->height);
info->update_buf_base = data_swap_32 (data->update_buf_base);
info->image_buf_base = data_swap_32 (data->image_buf_base);
info->temperature_no = data_swap_32 (data->temperature_no);
info->mode_no = data_swap_32 (data->mode_no);
for (uint8_t i = 0; i < 8; i++)
info->frame_count[i] = data_swap_32 (data->frame_count[i]);
info->num_img_buf = data_swap_32 (data->num_img_buf);
info->wbf_addr = data_swap_32 (data->wbf_addr);
for (uint8_t i = 0; i < 9; i++)
info->reserved[i] = data_swap_32 (data->reserved[i]);
}
destroy_io_hdr(hdr);
return status;
}
/*
* it8951_cmd_read_mem()
*/
static uint8_t
it8951_cmd_read_mem (usec_ctx *ctx,
uint8_t id,
uint32_t addr,
uint16_t length,
uint8_t *buf)
{
it8951_sg_io_hdr *hdr;
uint8_t status;
hdr = init_io_hdr();
set_xfer_data (hdr, buf, length);
set_sense_data (hdr, ctx->dev_sense_buf, USEC_DEV_SENSE_LEN);
status = scsi_it8951_cmd_read_mem (ctx->dev_fd[id], hdr, addr, length);
destroy_io_hdr(hdr);
return status;
}
/*
* it8951_cmd_write_mem()
*/
static uint8_t
it8951_cmd_write_mem (usec_ctx *ctx,
uint8_t id,
uint32_t addr,
uint16_t length,
uint8_t *buf)
{
it8951_sg_io_hdr *hdr;
uint8_t status;
hdr = init_io_hdr();
set_xfer_data (hdr, buf, length);
set_sense_data (hdr, ctx->dev_sense_buf, USEC_DEV_SENSE_LEN);
status = scsi_it8951_cmd_write_mem (ctx->dev_fd[id], hdr, addr, length);
destroy_io_hdr(hdr);
return status;
}
/*
* it8951_cmd_read_reg()
*/
static uint8_t
it8951_cmd_read_reg (usec_ctx *ctx,
uint8_t id,
uint32_t addr,
uint32_t *buf)
{
it8951_sg_io_hdr *hdr;
uint8_t status;
hdr = init_io_hdr();
set_xfer_data (hdr, buf, sizeof(uint32_t));
set_sense_data (hdr, ctx->dev_sense_buf, USEC_DEV_SENSE_LEN);
status = scsi_it8951_cmd_read_reg (ctx->dev_fd[id], hdr, addr);
destroy_io_hdr(hdr);
return status;
}
/*
* it8951_cmd_write_reg()
*/
static uint8_t
it8951_cmd_write_reg (usec_ctx *ctx,
uint8_t id,
uint32_t addr,
uint32_t buf)
{
it8951_sg_io_hdr *hdr;
uint32_t buf_in;
uint8_t status;
hdr = init_io_hdr();
buf_in = data_swap_32 (buf);
set_xfer_data (hdr, &buf_in, sizeof(uint32_t));
set_sense_data (hdr, ctx->dev_sense_buf, USEC_DEV_SENSE_LEN);
status = scsi_it8951_cmd_write_reg (ctx->dev_fd[id], hdr, addr);
destroy_io_hdr(hdr);
return status;
}
/*
* it8951_cmd_dpy_area()
*/
static uint8_t
it8951_cmd_dpy_area (usec_ctx *ctx,
uint8_t id,
uint32_t pos_x,
uint32_t pos_y,
uint32_t width,
uint32_t height,
uint32_t wav_mode,
uint32_t wait_ready)
{
it8951_sg_io_hdr *hdr;
it8951_disp_arg displayArg;
uint8_t status;
displayArg.pos_x = data_swap_32 (pos_x);
displayArg.pos_y = data_swap_32 (pos_y);
displayArg.width = data_swap_32 (width);
displayArg.height = data_swap_32 (height);
displayArg.engine_index = data_swap_32 (wait_ready);
displayArg.mem_addr = data_swap_32 (ctx->dev_addr[id]);
displayArg.wav_mode = data_swap_32 (wav_mode);
hdr = init_io_hdr();
set_xfer_data (hdr, &displayArg, sizeof(it8951_disp_arg));
set_sense_data (hdr, ctx->dev_sense_buf, USEC_DEV_SENSE_LEN);
status = scsi_it8951_cmd_dpy_area (ctx->dev_fd[id], hdr);
destroy_io_hdr(hdr);
return status;
}
/*
* it8951_cmd_load_img()
*/
static uint8_t
it8951_cmd_load_img (usec_ctx *ctx,
uint8_t id,
uint8_t *src_img,
uint32_t pos_x,
uint32_t pos_y,
uint32_t width,
uint32_t height)
{
uint8_t status;
uint32_t counter;
counter = (USEC_DEV_SPT_LEN / width);
status = 0;
if (width <= 2048 && width != (ctx->dev_width[id]))
{
it8951_sg_io_hdr *hdr;
it8951_load_arg load_arg;
hdr = init_io_hdr();
for (uint32_t i = 0; i < height; i += counter)
{
uint8_t *buf;
if (counter > (height-i))
counter = (height-i);
buf = malloc((sizeof(it8951_load_arg)+(width*counter)));
load_arg.x = data_swap_32 (pos_x);
load_arg.y = data_swap_32 (pos_y + i);
load_arg.w = data_swap_32 (width);
load_arg.h = data_swap_32 (counter);
load_arg.addr = data_swap_32 (ctx->dev_addr[id]);
memcpy (buf, &load_arg, sizeof(it8951_load_arg));
memcpy ((buf + sizeof(it8951_load_arg)),
src_img+(i*width), width*counter);
set_xfer_data (hdr, buf, sizeof(it8951_load_arg) + (width*counter));
set_sense_data (hdr, ctx->dev_sense_buf, USEC_DEV_SENSE_LEN);
status |= scsi_it8951_cmd_load_img (ctx->dev_fd[id], hdr);
free(buf);
}
destroy_io_hdr(hdr);
}
else
{
for (uint32_t i = 0; i < height; i += counter)
{
if (counter > (height-i))
counter = (height-i);
status |= it8951_cmd_write_mem (ctx, id,
(ctx->dev_addr[id] + pos_x + ((pos_y + i) * \
(ctx->dev_width[id]))),
(uint32_t)(width * counter), (src_img + (i * width)));
}
}
return status;
}
/*
* it8951_cmd_get_set_temp()
*/
static uint8_t
it8951_cmd_get_set_temp (usec_ctx *ctx,
uint8_t id,
it8951_temp_arg *temp)
{
it8951_sg_io_hdr *hdr;
uint8_t status, flag;
flag = temp->set;
hdr = init_io_hdr();
set_xfer_data (hdr, temp, sizeof(it8951_temp_arg) / sizeof(uint8_t));
set_sense_data (hdr, ctx->dev_sense_buf, USEC_DEV_SENSE_LEN);
status = scsi_it8951_cmd_get_set_temp (ctx->dev_fd[id],
hdr, temp->set,temp->val);
if (status == USEC_DEV_OK)
{
if (flag == IT8951_TEMP_GET)
{
it8951_temp_arg *temp_tmp;
uint8_t temp_byte;
/* swap */
temp_tmp = hdr->dxferp;
temp_byte = temp_tmp->set;
temp_tmp->set = temp_tmp->val;
temp_tmp->val = temp_byte;
}