void weak_function nucleus2g_sspinitialize(void)
{
/* Configure the SPI-based microSD CS GPIO */
ssp_dumpgpio("nucleus2g_sspinitialize() Entry)");
/* SSP0 connects only to the MMC/SD slot on the Nucleus 1G board.
* P0[15]/TXD1/SCK0/SCK MMC_CLK
* P0[16]/RXD1/SSEL0/SSEL MMC_CD
* P0[17]/CTS1/MISO0/MISO MMC_DATA0
* P0[18]/DCD1/MOSI0/MOSI MMC_MISO
*
* In SPI mode the MMC/SD DATA3/CD functions as the SPI chip select.
*/
#ifdef CONFIG_LPC17_SSP0
lpc17_configgpio(NUCLEUS2G_MMCSD_CS);
#endif
/* SSP1 goes off the Nucleus 2G board to the Babel CAN board along with 3 chip
* select pins. However, it is currently not used on that board.
*/
#ifdef CONFIG_LPC17_SSP1
# warning "SSP1 chip selects not known"
#endif
ssp_dumpgpio("nucleus2g_sspinitialize() Exit");
}
void weak_function lpcxpresso_sspdev_initialize(void)
{
/* Configure the SPI-based microSD CS GPIO */
ssp_dumpgpio("lpcxpresso_sspdev_initialize() Entry)");
/* Configure card detect and chip select for the SD slot. NOTE: Jumper J55 must
* be set correctly for the SD slot chip select.
*/
#ifdef CONFIG_LPC17_SSP1
(void)lpc17_configgpio(LPCXPRESSO_SD_CS);
(void)lpc17_configgpio(LPCXPRESSO_SD_CD);
/* Configure chip select for the OLED. For the SPI interface, insert jumpers in
* J42, J43, J45 pin1-2 and J46 pin 1-2.
*/
#ifdef CONFIG_NX_LCDDRIVER
(void)lpc17_configgpio(LPCXPRESSO_OLED_CS);
#endif
#endif
ssp_dumpgpio("lpcxpresso_sspdev_initialize() Exit");
}
void lpc17_ssp1select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected)
{
sspdbg("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
ssp_dumpgpio("lpc17_spi1select() Entry");
#warning "Assert CS here (false)"
ssp_dumpgpio("lpc17_spi1select() Exit");
}
void lpc17_ssp0select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected)
{
sspdbg("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
ssp_dumpgpio("lpc17_ssp0select() Entry");
if (devid == SPIDEV_MMCSD)
{
/* Assert the CS pin to the card */
lpc17_gpiowrite(NUCLEUS2G_MMCSD_CS, !selected);
}
ssp_dumpgpio("lpc17_ssp0select() Exit");
}
void lpc17_ssp0select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected)
{
sspdbg("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
ssp_dumpgpio("lpc17_spi0select() Entry");
#ifdef CONFIG_NX_LCDDRIVER
if (devid == SPIDEV_DISPLAY)
{
/* Assert the CS pin to the OLED display */
(void)lpc17_gpiowrite(ZKITARM_OLED_CS, !selected);
}
#endif
ssp_dumpgpio("lpc17_spi0select() Exit");
}
void weak_function zkit_sspinitialize(void)
{
/* Configure the SPI-based LCD CS GPIO */
ssp_dumpgpio("zkit_sspinitialize() Entry)");
/* Configure chip select for the LCD. */
#ifdef CONFIG_LPC17_SSP0
#ifdef CONFIG_NX_LCDDRIVER
(void)lpc17_configgpio(ZKITARM_OLED_CS);
#endif
#endif /* CONFIG_LPC17_SSP0 */
ssp_dumpgpio("zkit_sspinitialize() Exit");
}
void lpc17_ssp1select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected)
{
sspdbg("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
ssp_dumpgpio("lpc17_ssp1select() Entry");
if (devid == SPIDEV_MMCSD)
{
/* Assert/de-assert the CS pin to the card */
(void)lpc17_gpiowrite(LPCXPRESSO_SD_CS, !selected);
}
#ifdef CONFIG_NX_LCDDRIVER
else if (devid == SPIDEV_DISPLAY)
{
/* Assert the CS pin to the OLED display */
(void)lpc17_gpiowrite(LPCXPRESSO_OLED_CS, !selected);
}
#endif
ssp_dumpgpio("lpc17_ssp1select() Exit");
}