C++ PXA_GPIO_TO_IRQ函数代码示例

static void __init zylonite_init(void)
{
	pxa_set_ffuart_info(NULL);
	pxa_set_btuart_info(NULL);
	pxa_set_stuart_info(NULL);

	/* board-processor specific initialization */
	zylonite_pxa300_init();
	zylonite_pxa320_init();

	/*
	 * Note: We depend that the bootloader set
	 * the correct value to MSC register for SMC91x.
	 */
	smc91x_resources[1].start = PXA_GPIO_TO_IRQ(gpio_eth_irq);
	smc91x_resources[1].end   = PXA_GPIO_TO_IRQ(gpio_eth_irq);
	platform_device_register(&smc91x_device);

	pxa_set_ac97_info(NULL);
	zylonite_init_lcd();
	zylonite_init_mmc();
	zylonite_init_keypad();
	zylonite_init_nand();
	zylonite_init_leds();
	zylonite_init_ohci();
	zylonite_init_wm9713_audio();
}

static int sharpsl_pm_remove(struct platform_device *pdev)
{
	suspend_set_ops(NULL);

	device_remove_file(&pdev->dev, &dev_attr_battery_percentage);
	device_remove_file(&pdev->dev, &dev_attr_battery_voltage);

	led_trigger_unregister_simple(sharpsl_charge_led_trigger);

	free_irq(PXA_GPIO_TO_IRQ(sharpsl_pm.machinfo->gpio_acin), sharpsl_ac_isr);
	free_irq(PXA_GPIO_TO_IRQ(sharpsl_pm.machinfo->gpio_batlock), sharpsl_fatal_isr);

	if (sharpsl_pm.machinfo->gpio_fatal)
		free_irq(PXA_GPIO_TO_IRQ(sharpsl_pm.machinfo->gpio_fatal), sharpsl_fatal_isr);

	if (sharpsl_pm.machinfo->batfull_irq)
		free_irq(PXA_GPIO_TO_IRQ(sharpsl_pm.machinfo->gpio_batfull), sharpsl_chrg_full_isr);

	gpio_free(sharpsl_pm.machinfo->gpio_batlock);
	gpio_free(sharpsl_pm.machinfo->gpio_batfull);
	gpio_free(sharpsl_pm.machinfo->gpio_acin);

	if (sharpsl_pm.machinfo->exit)
		sharpsl_pm.machinfo->exit();

	del_timer_sync(&sharpsl_pm.chrg_full_timer);
	del_timer_sync(&sharpsl_pm.ac_timer);

	return 0;
}

static void __init lpd270_init_irq(void)
{
	int irq;

	pxa27x_init_irq();

	__raw_writew(0, LPD270_INT_MASK);
	__raw_writew(0, LPD270_INT_STATUS);

	
	for (irq = LPD270_IRQ(2); irq <= LPD270_IRQ(4); irq++) {
		irq_set_chip_and_handler(irq, &lpd270_irq_chip,
					 handle_level_irq);
		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
	}
	irq_set_chained_handler(PXA_GPIO_TO_IRQ(0), lpd270_irq_handler);
	irq_set_irq_type(PXA_GPIO_TO_IRQ(0), IRQ_TYPE_EDGE_FALLING);
}

static void __init mainstone_init_irq(void)
{
	int irq;

	pxa27x_init_irq();

	/* setup extra Mainstone irqs */
	for(irq = MAINSTONE_IRQ(0); irq <= MAINSTONE_IRQ(15); irq++) {
		irq_set_chip_and_handler(irq, &mainstone_irq_chip,
					 handle_level_irq);
		if (irq == MAINSTONE_IRQ(10) || irq == MAINSTONE_IRQ(14))
			set_irq_flags(irq, IRQF_VALID | IRQF_PROBE | IRQF_NOAUTOEN);
		else
			set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
	}
	set_irq_flags(MAINSTONE_IRQ(8), 0);
	set_irq_flags(MAINSTONE_IRQ(12), 0);

	MST_INTMSKENA = 0;
	MST_INTSETCLR = 0;

	irq_set_chained_handler(PXA_GPIO_TO_IRQ(0), mainstone_irq_handler);
	irq_set_irq_type(PXA_GPIO_TO_IRQ(0), IRQ_TYPE_EDGE_FALLING);
}

/*
 * The card detect interrupt isn't debounced so we delay it by 250ms
 * to give the card a chance to fully insert / eject.
 */
static int stargate2_mci_init(struct device *dev,
			      irq_handler_t stargate2_detect_int,
			      void *data)
{
	int err;

	err = gpio_request(SG2_SD_POWER_ENABLE, "SG2_sd_power_enable");
	if (err) {
		printk(KERN_ERR "Can't get the gpio for SD power control");
		goto return_err;
	}
	gpio_direction_output(SG2_SD_POWER_ENABLE, 0);

	err = gpio_request(SG2_GPIO_nSD_DETECT, "SG2_sd_detect");
	if (err) {
		printk(KERN_ERR "Can't get the sd detect gpio");
		goto free_power_en;
	}
	gpio_direction_input(SG2_GPIO_nSD_DETECT);

	err = request_irq(PXA_GPIO_TO_IRQ(SG2_GPIO_nSD_DETECT),
			  stargate2_detect_int,
			  IRQ_TYPE_EDGE_BOTH,
			  "MMC card detect",
			  data);
	if (err) {
		printk(KERN_ERR "can't request MMC card detect IRQ\n");
		goto free_nsd_detect;
	}
	return 0;

 free_nsd_detect:
	gpio_free(SG2_GPIO_nSD_DETECT);
 free_power_en:
	gpio_free(SG2_SD_POWER_ENABLE);
 return_err:
	return err;
}

{
	gpio_request(GPIO_ESERIES_TMIO_SUSPEND, NULL);
	gpio_request(GPIO_ESERIES_TMIO_PCLR, NULL);
	gpio_direction_output(GPIO_ESERIES_TMIO_SUSPEND, 0);
	gpio_direction_output(GPIO_ESERIES_TMIO_PCLR, 0);
}

/* TMIO controller uses the same resources on all e-series machines. */
struct resource eseries_tmio_resources[] = {
	[0] = {
		.start  = PXA_CS4_PHYS,
		.end    = PXA_CS4_PHYS + 0x1fffff,
		.flags  = IORESOURCE_MEM,
	},
	[1] = {
		.start  = PXA_GPIO_TO_IRQ(GPIO_ESERIES_TMIO_IRQ),
		.end    = PXA_GPIO_TO_IRQ(GPIO_ESERIES_TMIO_IRQ),
		.flags  = IORESOURCE_IRQ,
	},
};

/* Some e-series hardware cannot control the 32K clock */
static void clk_32k_dummy(struct clk *clk)
{
}

static const struct clkops clk_32k_dummy_ops = {
	.enable         = clk_32k_dummy,
	.disable        = clk_32k_dummy,
};

	.gpio_cs	= CORGI_GPIO_LCDCON_CS,
};

static struct pxa2xx_spi_chip corgi_max1111_chip = {
	.gpio_cs	= CORGI_GPIO_MAX1111_CS,
};

static struct spi_board_info corgi_spi_devices[] = {
	{
		.modalias	= "ads7846",
		.max_speed_hz	= 1200000,
		.bus_num	= 1,
		.chip_select	= 0,
		.platform_data	= &corgi_ads7846_info,
		.controller_data= &corgi_ads7846_chip,
		.irq		= PXA_GPIO_TO_IRQ(CORGI_GPIO_TP_INT),
	}, {
		.modalias	= "corgi-lcd",
		.max_speed_hz	= 50000,
		.bus_num	= 1,
		.chip_select	= 1,
		.platform_data	= &corgi_lcdcon_info,
		.controller_data= &corgi_lcdcon_chip,
	}, {
		.modalias	= "max1111",
		.max_speed_hz	= 450000,
		.bus_num	= 1,
		.chip_select	= 2,
		.controller_data= &corgi_max1111_chip,
	},
};

		.end	= 0x4020001f,
		.flags	= IORESOURCE_MEM,
	},
	{
		.start	= 0x40700000,
		.end	= 0x4070001f,
		.flags	= IORESOURCE_MEM,
	},
};

static struct plat_serial8250_port serial_platform_data[] = {
	/* External UARTs */
	/* FIXME: Shared IRQs on COM1-COM4 will not work properly on v1i1 hardware. */
	{ /* COM1 */
		.mapbase	= 0x10000000,
		.irq		= PXA_GPIO_TO_IRQ(ZEUS_UARTA_GPIO),
		.irqflags	= IRQF_TRIGGER_RISING,
		.uartclk	= 14745600,
		.regshift	= 1,
		.flags		= UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
		.iotype		= UPIO_MEM,
	},
	{ /* COM2 */
		.mapbase	= 0x10800000,
		.irq		= PXA_GPIO_TO_IRQ(ZEUS_UARTB_GPIO),
		.irqflags	= IRQF_TRIGGER_RISING,
		.uartclk	= 14745600,
		.regshift	= 1,
		.flags		= UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
		.iotype		= UPIO_MEM,
	},

	GPIO35_GPIO | MFP_LPM_PULL_LOW,
	GPIO36_GPIO | MFP_LPM_DRIVE_HIGH,
};

/*
 * SMSC LAN9220 Ethernet
 */

static struct resource smc91x_resources[] = {
	{
		.start	= PXA3xx_CS2_PHYS,
		.end	= PXA3xx_CS2_PHYS + 0xfffff,
		.flags	= IORESOURCE_MEM,
	},
	{
		.start	= PXA_GPIO_TO_IRQ(GPIO_ETH_IRQ),
		.end	= PXA_GPIO_TO_IRQ(GPIO_ETH_IRQ),
		.flags	= IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
	}
};

static struct smsc911x_platform_config raumfeld_smsc911x_config = {
	.phy_interface	= PHY_INTERFACE_MODE_MII,
	.irq_polarity	= SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
	.irq_type	= SMSC911X_IRQ_TYPE_OPEN_DRAIN,
	.flags		= SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS,
};

static struct platform_device smc91x_device = {
	.name		= "smsc911x",
	.id		= -1,

	/* GPIOD: input GPIOs, CF */
	ASIC3_GPIOD11_nCIOIS16,
	ASIC3_GPIOD12_nCWAIT,
	ASIC3_GPIOD15_nPIOW,
};

static struct resource asic3_resources[] = {
	/* GPIO part */
	[0] = {
		.start	= ASIC3_PHYS,
		.end	= ASIC3_PHYS + ASIC3_MAP_SIZE_16BIT - 1,
		.flags	= IORESOURCE_MEM,
	},
	[1] = {
		.start	= PXA_GPIO_TO_IRQ(GPIO12_HX4700_ASIC3_IRQ),
		.end	= PXA_GPIO_TO_IRQ(GPIO12_HX4700_ASIC3_IRQ),
		.flags	= IORESOURCE_IRQ,
	},
	/* SD part */
	[2] = {
		.start	= ASIC3_SD_PHYS,
		.end	= ASIC3_SD_PHYS + ASIC3_MAP_SIZE_16BIT - 1,
		.flags	= IORESOURCE_MEM,
	},
	[3] = {
		.start	= PXA_GPIO_TO_IRQ(GPIO66_HX4700_ASIC3_nSDIO_IRQ),
		.end	= PXA_GPIO_TO_IRQ(GPIO66_HX4700_ASIC3_nSDIO_IRQ),
		.flags	= IORESOURCE_IRQ,
	},
};

	
	GPIO107_UART3_CTS,
	GPIO108_UART3_RTS,
	GPIO109_UART3_TXD,
	GPIO110_UART3_RXD,
};

static struct resource smc91x_resources[] = {
	[0] = {
		.start	= (LITTLETON_ETH_PHYS + 0x300),
		.end	= (LITTLETON_ETH_PHYS + 0xfffff),
		.flags	= IORESOURCE_MEM,
	},
	[1] = {
		.start	= PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO90)),
		.end	= PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO90)),
		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
	}
};

static struct smc91x_platdata littleton_smc91x_info = {
	.flags	= SMC91X_USE_8BIT | SMC91X_USE_16BIT |
		  SMC91X_NOWAIT | SMC91X_USE_DMA,
};

static struct platform_device smc91x_device = {
	.name		= "smc91x",
	.id		= 0,
	.num_resources	= ARRAY_SIZE(smc91x_resources),
	.resource	= smc91x_resources,

	.touch				= &evb3_touch,
	.backlight			= &evb3_backlight[0],
	.led				= &evb3_led[0],
	.companion_addr			= 0x10,
	.irq_mode			= 0,
	.irq_base			= IRQ_BOARD_START,

	.i2c_port			= GI2C_PORT,
};

static struct i2c_board_info evb3_i2c_info[] = {
	{
		.type		= "88PM860x",
		.addr		= 0x34,
		.platform_data	= &evb3_pm8607_info,
		.irq		= PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO83)),
	},
};

static void __init evb3_init_i2c(void)
{
	pxa_set_i2c_info(NULL);
	i2c_register_board_info(0, ARRAY_AND_SIZE(evb3_i2c_info));
}
#else
static inline void evb3_init_i2c(void) {}
#endif

static void __init evb3_init(void)
{
	/* initialize MFP configurations */

{
	gpio_set_value(GPIO9_CHARGE_EN, (flags == PDA_POWER_CHARGE_USB));
}

static struct pda_power_pdata power_pdata = {
	.is_ac_online	= is_ac_connected,
	.is_usb_online	= is_usb_connected,
	.set_charge = mioa701_set_charge,
	.supplied_to = supplicants,
	.num_supplicants = ARRAY_SIZE(supplicants),
};

static struct resource power_resources[] = {
	[0] = {
		.name	= "ac",
		.start	= PXA_GPIO_TO_IRQ(GPIO96_AC_DETECT),
		.end	= PXA_GPIO_TO_IRQ(GPIO96_AC_DETECT),
		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
		IORESOURCE_IRQ_LOWEDGE,
	},
	[1] = {
		.name	= "usb",
		.start	= PXA_GPIO_TO_IRQ(GPIO13_nUSB_DETECT),
		.end	= PXA_GPIO_TO_IRQ(GPIO13_nUSB_DETECT),
		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
		IORESOURCE_IRQ_LOWEDGE,
	},
};

static struct platform_device power_dev = {
	.name		= "pda-power",

	DF_IO12_ND_IO12,
	DF_IO13_ND_IO13,
	DF_IO14_ND_IO14,
	DF_IO15_ND_IO15,
};

#define SAAR_ETH_PHYS	(0x14000000)

static struct resource smc91x_resources[] = {
	[0] = {
		.start	= (SAAR_ETH_PHYS + 0x300),
		.end	= (SAAR_ETH_PHYS + 0xfffff),
		.flags	= IORESOURCE_MEM,
	},
	[1] = {
		.start	= PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO97)),
		.end	= PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO97)),
		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
	}
};

static struct smc91x_platdata saar_smc91x_info = {
	.flags	= SMC91X_USE_16BIT | SMC91X_NOWAIT | SMC91X_USE_DMA,
};

static struct platform_device smc91x_device = {
	.name		= "smc91x",
	.id		= 0,
	.num_resources	= ARRAY_SIZE(smc91x_resources),
	.resource	= smc91x_resources,
	.dev		= {

	.gpio_pendown     = GPIO58_HX4700_TSC2046_nPENIRQ,
};

static struct pxa2xx_spi_chip tsc2046_chip = {
	.tx_threshold = 1,
	.rx_threshold = 2,
	.timeout      = 64,
	.gpio_cs      = GPIO88_HX4700_TSC2046_CS,
};

static struct spi_board_info tsc2046_board_info[] __initdata = {
	{
		.modalias        = "ads7846",
		.bus_num         = 2,
		.max_speed_hz    = 2600000, /* 100 kHz sample rate */
		.irq             = PXA_GPIO_TO_IRQ(GPIO58_HX4700_TSC2046_nPENIRQ),
		.platform_data   = &tsc2046_info,
		.controller_data = &tsc2046_chip,
	},
};

static struct pxa2xx_spi_master pxa_ssp2_master_info = {
	.num_chipselect = 1,
	.clock_enable   = CKEN_SSP2,
	.enable_dma     = 1,
};

/*
 * External power
 */