static void wadsp_send_bit(int bit)
{
if (reset) {
XRES(0);
reset = 0;
}
SDATA(bit);
SCLK(1);
SCLK(0);
}
static unsigned readbyte(void)
{
unsigned byte=0;
unsigned i;
for(i = 0; i < 8; ++i) {
byte <<= 1;
SCLK(0);
gdelay(1);
byte |= SDO;
SCLK(1);
gdelay(1);
}
return byte;
}
static void writebyte(unsigned byte)
{
unsigned short i;
for (i = 0; i < 8; ++i) {
SCLK(0);
gdelay(1);
if (byte&0x0080)
SDI(1);
else
SDI(0);
SCLK(1);
gdelay(1);
byte <<= 1;
}
}
static void wadsp_close(void)
{
XRES(1);
Z();
SCLK(0);
tty_close();
}
static void WriteData(unsigned cmd)
{
unsigned fb=mDevID+RS(1)+RW(0);
SCLK(1);
SDI(1);
CS(0);
gdelay(1);
writebyte(fb);
writebyte(cmd);
CS(1);
}
static void lcdc_hx8352_config_gpios(void)
{
/* Setting the Default GPIO's */
spi_sdi = platform_data->gpio_num[0];
spi_sdo = platform_data->gpio_num[1];
lcd_reset = platform_data->gpio_num[2];
spi_cs = platform_data->gpio_num[3];
spi_clk = platform_data->gpio_num[4];
platform_data->panel_config_gpio(GPIO_ENABLE);
RESET(1);
SCLK(1);
CS(1);
}
void spi_init()
{
DRDY();
SS();
SCLK();
MOSI();
MOSO();
SPI_CLK(0);
SPI_MOSI(0);
//set_gpio_direction(SS, OUTP);
//set_gpio_direction(SCLK, OUTP);
//set_gpio_direction(MOSI, OUTP);
//set_gpio_direction(MISO, INP);
//set_gpio_value(SCLK, 0); //CPOL=0
//set_gpio_value(MOSI, 0);
}
static int wadsp_open(const char *dev,int voltage,int power_on,
const char *args[])
{
prog_init(NULL,NULL,NULL,&wadsp_bit);
if (power_on)
return -1;
if (voltage == 3)
fprintf(stderr,
"warning: 3V operation is not reliable. Trying anyway ...\n");
fd = tty_open_raw(dev,B19200);
XRES(1);
SCLK(0);
Z();
reset = 1;
inverted = 0;
sdata = -1;
return voltage;
}
static void wadsp_invert_phase(void)
{
inverted = !inverted;
if (inverted)
SCLK(1);
}
static void wadsp_send_z(void)
{
Z();
SCLK(!inverted);
SCLK(inverted);
}
static void send_colors(struct color *colors, int count)
{
int i, k;
/* Initialize SPI pins. */
SCLK(0);
MOSI(0);
/* Start frame */
for (i = 0; i < 32; i++) {
SCLK(1);
SMALL_DELAY();
SCLK(0);
SMALL_DELAY();
}
/* Color cell output */
for (k = 0; k < count; k++) {
/* Start bit */
MOSI(1);
SCLK(1);
SMALL_DELAY();
SCLK(0);
SMALL_DELAY();
/* Blue */
for (i = 0; i < 5; i++) {
MOSI(((colors[k].b & ((1 << 4) >> i)) != 0));
SCLK(1);
SMALL_DELAY();
SCLK(0);
SMALL_DELAY();
}
/* Red */
for (i = 0; i < 5; i++) {
MOSI(((colors[k].r & ((1 << 4) >> i)) != 0));
SCLK(1);
SMALL_DELAY();
SCLK(0);
SMALL_DELAY();
}
/* Green */
for (i = 0; i < 5; i++) {
MOSI(((colors[k].g & ((1 << 4) >> i)) != 0));
SCLK(1);
SMALL_DELAY();
SCLK(0);
SMALL_DELAY();
}
}
/* End frame */
MOSI(0);
for (k = 0; k < count; k++) {
SCLK(1);
SMALL_DELAY();
SCLK(0);
SMALL_DELAY();
}
}