void spic_show_settings(void)
{
printf("Brightness %d ", spic_read(SPIC_CAMERA_BRIGHTNESS));
printf("Color %d ", spic_read(SPIC_CAMERA_COLOR));
printf("Contrast %d ", spic_read(SPIC_CAMERA_CONTRAST));
printf("Hue %d ", spic_read(SPIC_CAMERA_HUE));
printf("Sharpness %d\n", spic_read(SPIC_CAMERA_SHARPNESS));
printf("Picture 0x%02x ", spic_read(SPIC_CAMERA_PICTURE));
printf("AGC 0x%02x ", spic_read(SPIC_CAMERA_AGC));
printf("Direction: %s\n", (spic_read(SPIC_CAMERA_STATUS) & SPIC_DIRECTION_BACKWARDS) ? "back":"front");
printf("RomVersion: %d ", spic_read(SPIC_CAMERA_ROMVERSION));
printf("Revision: %d\n", spic_read(SPIC_CAMERA_REVISION));
static int raspi_read_scur(u8 *val)
{
ssize_t retval;
u8 code = 0x2b;
retval = spic_read(&code, 1, val, 1);
if (retval != 1) {
printf("%s: ret: %x\n", __func__, retval);
return -1;
}
return 0;
}
/*
* read SPI flash device ID
*/
static int raspi_read_devid(u8 *rxbuf, int n_rx)
{
u8 code = OPCODE_RDID;
int retval;
retval = spic_read(&code, 1, rxbuf, n_rx);
if (retval != n_rx) {
printf("%s: ret: %x\n", __func__, retval);
return retval;
}
return retval;
}
/*
* Read the status register, returning its value in the location
*/
static int raspi_read_sr(u8 *val)
{
ssize_t retval;
u8 code = OPCODE_RDSR;
retval = spic_read(&code, 1, val, 1);
if (retval != 1) {
printk("%s: ret: %x\n", __func__, retval);
return -EIO;
}
return 0;
}
static int raspi_4byte_mode(int enable)
{
ssize_t retval;
u8 code;
if (enable)
code = 0xB7; /* EN4B, enter 4-byte mode */
else
code = 0xE9; /* EX4B, exit 4-byte mode */
retval = spic_read(&code, 1, 0, 0);
if (retval != 0) {
printf("%s: ret: %x\n", __func__, retval);
return -1;
}
return 0;
}