Code-Bin #170

untitled C Code
Posted by: julien | July 4, 2008 @ 8:06am

C Code

arch/avr32/mach-at32ap/pio.c
/* Pin multiplexing API */
void __init at32_select_periph(unsigned int port, u32 pin_mask, unsigned int periph,
                               unsigned long flags)
{
        int i;
        struct pio_device *pio;

for(i = 0; i < 32; i++) {
                unsigned int pin = port + i;
                unsigned int pin_index = pin & 0x1f;
                u32 mask = 1 << pin_index;

if(!((1 << i) & pin_mask))
                        continue;
...
}

arch/avr32/boards/hammerhead/setup.c
static u32 get_pin_mask(unsigned int port);
struct atmel_lcdfb_info __initdata hammerhead_lcdc_data = {
        .default_bpp            = 24,
        .default_dmacon         = ATMEL_LCDC_DMAEN | ATMEL_LCDC_DMA2DEN,
        .default_lcdcon2        = (ATMEL_LCDC_DISTYPE_TFT
                                   | ATMEL_LCDC_INVCLK
                                   | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE
                                   | ATMEL_LCDC_MEMOR_BIG),
        .default_monspecs       = &hammerhead_hda350t_monspecs,
        .guard_time             = 2,
        .get_pin_mask           = get_pin_mask,
};

static u32 get_pin_mask(unsigned int port) {
        u32 pin_mask = 0;

switch(port) {
        case GPIO_PIOC_BASE:
                pin_mask = LCD_PERIPH_HSYNC | LCD_PERIPH_PCLK | LCD_PERIPH_VSYNC | LCD_PERIPH_PWR |
                           LCD_PERIPH_DATA0 | LCD_PERIPH_DATA1 | LCD_PERIPH_DATA2 | LCD_PERIPH_DATA3 |
                           LCD_PERIPH_DATA4 | LCD_PERIPH_DATA5;
                break;
        case GPIO_PIOD_BASE:
                pin_mask = LCD_PERIPH_DATA6 | LCD_PERIPH_DATA7 | LCD_PERIPH_DATA8 | LCD_PERIPH_DATA9 |
                           LCD_PERIPH_DATA10 | LCD_PERIPH_DATA11 | LCD_PERIPH_DATA12 | LCD_PERIPH_DATA13 |
                           LCD_PERIPH_DATA14 | LCD_PERIPH_DATA15 | LCD_PERIPH_DATA16 | LCD_PERIPH_DATA17 |
                           LCD_PERIPH_DATA18 | LCD_PERIPH_DATA19 | LCD_PERIPH_DATA20 |  LCD_PERIPH_DATA21 |
                           LCD_PERIPH_DATA22 | LCD_PERIPH_DATA23;
                break;
        default:
                printk("Unsupported PORT");
        }

return pin_mask;
}

arch/avr32/mach-at32ap/at32ap700x.c
                if(data->get_pin_mask) {
                        at32_select_periph2(GPIO_PIOC_BASE, data->get_pin_mask(GPIO_PIOC_BASE), GPIO_PERIPH_A, 0);
                        at32_select_periph2(GPIO_PIOD_BASE, data->get_pin_mask(GPIO_PIOD_BASE), GPIO_PERIPH_A, 0);
                }

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