// In SMDK6410 Eval. Board, Button is mapped to this GPIOs
// Reset Button -> GPN[11] : EINT11
// Power Button -> GPN[9] : EINT9 / ADDR_CF[1]
//
void Button_pwrbtn_port_initialize(void)
{
RETAILMSG(PWR_ZONE_ENTER, (_T("[BTN] %s()\n\r"), _T(__FUNCTION__)));
// GPN[0] to EINT0
SET_GPIO(g_pGPIOReg, GPNCON, 0, GPNCON_EXTINT);
// GPN[0] set Pull-up Enable
SET_GPIO(g_pGPIOReg, GPNPUD, 0, GPNPUD_PULLUP);
}
static void palmtt3_udc_command (int cmd){
switch (cmd) {
case PXA2XX_UDC_CMD_DISCONNECT:
SET_GPIO(GPIO_NR_PALMTT3_PUC_USB_POWER, 0);
SET_GPIO(GPIO_NR_PALMTT3_USB_POWER, 1);
printk(KERN_INFO "palmtt3_udc: got command PXA2XX_UDC_CMD_DISCONNECT\n");
break;
case PXA2XX_UDC_CMD_CONNECT:
SET_GPIO(GPIO_NR_PALMTT3_USB_POWER, 0);
SET_GPIO(GPIO_NR_PALMTT3_PUC_USB_POWER, 1);
printk(KERN_INFO "palmtt3_udc: got command PXA2XX_UDC_CMD_CONNECT\n");
break;
default:
printk("palmtt3_udc: unknown command '%d'\n", cmd);
}
}
void Button_port_initialize(void)
{
RETAILMSG(PWR_ZONE_ENTER, (_T("[BTN] %s()\n\r"), _T(__FUNCTION__)));
// GPN[9] to EINT9, GPN[11] to EINT11
SET_GPIO(g_pGPIOReg, GPNCON, 9, GPNCON_EXTINT);
#ifndef OMNIBOOK_VER
SET_GPIO(g_pGPIOReg, GPNCON, 11, GPNCON_EXTINT);
#endif /!OMNIBOOK_VER
#ifdef OMNIBOOK_VER
// GPN[9], GPN[11] set Pull-down Enable
SET_GPIO(g_pGPIOReg, GPNPUD, 9, GPNPUD_PULLDOWN);
#else //!OMNIBOOK_VER
// GPN[9], GPN[11] set Pull-up Enable
SET_GPIO(g_pGPIOReg, GPNPUD, 9, GPNPUD_PULLUP);
SET_GPIO(g_pGPIOReg, GPNPUD, 11, GPNPUD_PULLUP);
#endif OMNIBOOK_VER
}
void palmtt3_hwuart_configure(int state)
{
switch (state) {
case PXA_UART_CFG_PRE_STARTUP:
break;
case PXA_UART_CFG_POST_STARTUP:
SET_GPIO(35,0);
SET_GPIO(35,1);
palmtt3_hwuart_state = 1;
break;
case PXA_UART_CFG_PRE_SHUTDOWN:
SET_GPIO(35,0);
palmtt3_hwuart_state = 0;
break;
case PXA_UART_CFG_POST_SHUTDOWN:
break;
default:
printk("palmtt3_hwuart_configure: bad request %d\n",state);
break;
}
}
/*** IRDA ***/
static void palmtt3_irda_transceiver_mode(struct device *dev, int mode)
{
unsigned long flags;
local_irq_save(flags);
if (mode & IR_SIRMODE){
printk ("IrDA: setting mode to SIR\n");
}
else if (mode & IR_FIRMODE){
printk ("IrDA: setting mode to FIR\n");
}
if (mode & IR_OFF){
printk ("IrDA: turning OFF\n");
SET_GPIO(GPIO_NR_PALMTT3_IR_DISABLE, 1);
}
else {
printk (KERN_INFO "IrDA: turning ON\n");
SET_GPIO(GPIO_NR_PALMTT3_IR_DISABLE, 0);
}
local_irq_restore(flags);
}
static void set_gpio(uint8_t n, uint8_t v)
{
switch (n) {
SET_GPIO(0, 0, v);
SET_GPIO(0, 1, v);
SET_GPIO(0, 2, v);
SET_GPIO(0, 3, v);
SET_GPIO(0, 4, v);
SET_GPIO(0, 5, v);
SET_GPIO(0, 6, v);
SET_GPIO(0, 7, v);
SET_GPIO(2, 0, v);
SET_GPIO(2, 1, v);
SET_GPIO(2, 2, v);
SET_GPIO(2, 3, v);
SET_GPIO(2, 4, v);
SET_GPIO(2, 5, v);
/*
* P0_0 ... P0_7: bits 0 ... 7
* P2_0 ... P2_5: bits 8 ... 13
* P3_0: bit 14
*/
case 14:
P3_0 = v;
}
}
/**
* Turn display backlight on or off.
* \param p Pointer to driver's private data structure.
* \param state New backlight status.
*/
void
lcdrpi_HD44780_backlight(PrivateData *p, unsigned char state)
{
if (p->backlight_bit > -1 && p->backlight_bit < 32)
SET_GPIO(p->backlight_bit, (state == BACKLIGHT_ON) ? 1 : 0);
}
/**
* Send data or commands to the display.
* \param p Pointer to driver's private data structure.
* \param displayID ID of the display (or 0 for all) to send data to.
* \param flags Defines whether to end a command or data.
* \param ch The value to send.
*/
void
lcdrpi_HD44780_senddata(PrivateData *p, unsigned char displayID, unsigned char flags, unsigned char ch)
{
/* Safeguard: This should never happen */
if (gpio_map == NULL) {
return;
}
if (flags == RS_INSTR) {
SET_GPIO(p->rpi_gpio->rs, 0);
}
else { /* flags == RS_DATA */
SET_GPIO(p->rpi_gpio->rs, 1);
}
/* Clear data lines ready for nibbles */
SET_GPIO(p->rpi_gpio->d7, 0);
SET_GPIO(p->rpi_gpio->d6, 0);
SET_GPIO(p->rpi_gpio->d5, 0);
SET_GPIO(p->rpi_gpio->d4, 0);
p->hd44780_functions->uPause(p, 50);
/* Output upper nibble first */
SET_GPIO(p->rpi_gpio->d7, (ch & 0x80));
SET_GPIO(p->rpi_gpio->d6, (ch & 0x40));
SET_GPIO(p->rpi_gpio->d5, (ch & 0x20));
SET_GPIO(p->rpi_gpio->d4, (ch & 0x10));
p->hd44780_functions->uPause(p, 50);
/* Data is clocked on the falling edge of EN */
if (displayID == 1 || displayID == 0)
SET_GPIO(p->rpi_gpio->en, 1);
if (displayID == 2 || (p->numDisplays > 1 && displayID == 0))
SET_GPIO(p->rpi_gpio->en2, 1);
p->hd44780_functions->uPause(p, 50);
if (displayID == 1 || displayID == 0)
SET_GPIO(p->rpi_gpio->en, 0);
if (displayID == 2 || (p->numDisplays > 1 && displayID == 0))
SET_GPIO(p->rpi_gpio->en2, 0);
p->hd44780_functions->uPause(p, 50);
/* Do same for lower nibble */
SET_GPIO(p->rpi_gpio->d7, 0);
SET_GPIO(p->rpi_gpio->d6, 0);
SET_GPIO(p->rpi_gpio->d5, 0);
SET_GPIO(p->rpi_gpio->d4, 0);
p->hd44780_functions->uPause(p, 50);
SET_GPIO(p->rpi_gpio->d7, (ch & 0x08));
SET_GPIO(p->rpi_gpio->d6, (ch & 0x04));
SET_GPIO(p->rpi_gpio->d5, (ch & 0x02));
SET_GPIO(p->rpi_gpio->d4, (ch & 0x01));
p->hd44780_functions->uPause(p, 50);
if (displayID == 1 || displayID == 0)
SET_GPIO(p->rpi_gpio->en, 1);
if (displayID == 2 || (p->numDisplays > 1 && displayID == 0))
SET_GPIO(p->rpi_gpio->en2, 1);
p->hd44780_functions->uPause(p, 50);
if (displayID == 1 || displayID == 0)
SET_GPIO(p->rpi_gpio->en, 0);
if (displayID == 2 || (p->numDisplays > 1 && displayID == 0))
SET_GPIO(p->rpi_gpio->en2, 0);
p->hd44780_functions->uPause(p, 50);
}
