ARM: simpad: Add support for GPIO attached hardware

index 9296c45..231550d 100644
@@ -48,6 +48,19 @@
 #define GPIO_SMART_CARD		GPIO_GPIO10
 #define IRQ_GPIO_SMARD_CARD	IRQ_GPIO10
 
+/*--- ucb1x00 GPIO ---*/
+#define SIMPAD_UCB1X00_GPIO_BASE	(GPIO_MAX + 1)
+#define SIMPAD_UCB1X00_GPIO_PROG1	(SIMPAD_UCB1X00_GPIO_BASE)
+#define SIMPAD_UCB1X00_GPIO_PROG2	(SIMPAD_UCB1X00_GPIO_BASE + 1)
+#define SIMPAD_UCB1X00_GPIO_UP		(SIMPAD_UCB1X00_GPIO_BASE + 2)
+#define SIMPAD_UCB1X00_GPIO_DOWN	(SIMPAD_UCB1X00_GPIO_BASE + 3)
+#define SIMPAD_UCB1X00_GPIO_LEFT	(SIMPAD_UCB1X00_GPIO_BASE + 4)
+#define SIMPAD_UCB1X00_GPIO_RIGHT	(SIMPAD_UCB1X00_GPIO_BASE + 5)
+#define SIMPAD_UCB1X00_GPIO_6		(SIMPAD_UCB1X00_GPIO_BASE + 6)
+#define SIMPAD_UCB1X00_GPIO_7		(SIMPAD_UCB1X00_GPIO_BASE + 7)
+#define SIMPAD_UCB1X00_GPIO_HEADSET	(SIMPAD_UCB1X00_GPIO_BASE + 8)
+#define SIMPAD_UCB1X00_GPIO_SPEAKER	(SIMPAD_UCB1X00_GPIO_BASE + 9)
+
 // CS3 Latch is write only, a shadow is necessary
 
 #define CS3BUSTYPE unsigned volatile long

index cfb7607..718b802 100644
@@ -132,6 +132,7 @@ static struct resource simpad_flash_resources [] = {
 static struct mcp_plat_data simpad_mcp_data = {
 	.mccr0		= MCCR0_ADM,
 	.sclk_rate	= 11981000,
+	.gpio_base	= SIMPAD_UCB1X00_GPIO_BASE,
 };
 
 

index 231550d..db28118 100644
@@ -61,32 +61,67 @@
 #define SIMPAD_UCB1X00_GPIO_HEADSET	(SIMPAD_UCB1X00_GPIO_BASE + 8)
 #define SIMPAD_UCB1X00_GPIO_SPEAKER	(SIMPAD_UCB1X00_GPIO_BASE + 9)
 
-// CS3 Latch is write only, a shadow is necessary
+/*--- CS3 Latch ---*/
+#define SIMPAD_CS3_GPIO_BASE		(GPIO_MAX + 11)
+#define SIMPAD_CS3_VCC_5V_EN		(SIMPAD_CS3_GPIO_BASE)
+#define SIMPAD_CS3_VCC_3V_EN		(SIMPAD_CS3_GPIO_BASE + 1)
+#define SIMPAD_CS3_EN1			(SIMPAD_CS3_GPIO_BASE + 2)
+#define SIMPAD_CS3_EN0			(SIMPAD_CS3_GPIO_BASE + 3)
+#define SIMPAD_CS3_DISPLAY_ON		(SIMPAD_CS3_GPIO_BASE + 4)
+#define SIMPAD_CS3_PCMCIA_BUFF_DIS	(SIMPAD_CS3_GPIO_BASE + 5)
+#define SIMPAD_CS3_MQ_RESET		(SIMPAD_CS3_GPIO_BASE + 6)
+#define SIMPAD_CS3_PCMCIA_RESET		(SIMPAD_CS3_GPIO_BASE + 7)
+#define SIMPAD_CS3_DECT_POWER_ON	(SIMPAD_CS3_GPIO_BASE + 8)
+#define SIMPAD_CS3_IRDA_SD		(SIMPAD_CS3_GPIO_BASE + 9)
+#define SIMPAD_CS3_RS232_ON		(SIMPAD_CS3_GPIO_BASE + 10)
+#define SIMPAD_CS3_SD_MEDIAQ		(SIMPAD_CS3_GPIO_BASE + 11)
+#define SIMPAD_CS3_LED2_ON		(SIMPAD_CS3_GPIO_BASE + 12)
+#define SIMPAD_CS3_IRDA_MODE		(SIMPAD_CS3_GPIO_BASE + 13)
+#define SIMPAD_CS3_ENABLE_5V		(SIMPAD_CS3_GPIO_BASE + 14)
+#define SIMPAD_CS3_RESET_SIMCARD	(SIMPAD_CS3_GPIO_BASE + 15)
+
+#define SIMPAD_CS3_PCMCIA_BVD1		(SIMPAD_CS3_GPIO_BASE + 16)
+#define SIMPAD_CS3_PCMCIA_BVD2		(SIMPAD_CS3_GPIO_BASE + 17)
+#define SIMPAD_CS3_PCMCIA_VS1		(SIMPAD_CS3_GPIO_BASE + 18)
+#define SIMPAD_CS3_PCMCIA_VS2		(SIMPAD_CS3_GPIO_BASE + 19)
+#define SIMPAD_CS3_LOCK_IND		(SIMPAD_CS3_GPIO_BASE + 20)
+#define SIMPAD_CS3_CHARGING_STATE	(SIMPAD_CS3_GPIO_BASE + 21)
+#define SIMPAD_CS3_PCMCIA_SHORT		(SIMPAD_CS3_GPIO_BASE + 22)
+#define SIMPAD_CS3_GPIO_23		(SIMPAD_CS3_GPIO_BASE + 23)
 
-#define CS3BUSTYPE unsigned volatile long
 #define CS3_BASE        0xf1000000
 
-#define VCC_5V_EN       0x0001 // For 5V PCMCIA
-#define VCC_3V_EN       0x0002 // FOR 3.3V PCMCIA
-#define EN1             0x0004 // This is only for EPROM's
-#define EN0             0x0008 // Both should be enable for 3.3V or 5V
-#define DISPLAY_ON      0x0010
-#define PCMCIA_BUFF_DIS 0x0020
-#define MQ_RESET        0x0040
-#define PCMCIA_RESET    0x0080
-#define DECT_POWER_ON   0x0100
-#define IRDA_SD         0x0200 // Shutdown for powersave
-#define RS232_ON        0x0400
-#define SD_MEDIAQ       0x0800 // Shutdown for powersave
-#define LED2_ON         0x1000
-#define IRDA_MODE       0x2000 // Fast/Slow IrDA mode
-#define ENABLE_5V       0x4000 // Enable 5V circuit
-#define RESET_SIMCARD   0x8000
-
-#define RS232_ENABLE    0x0440
-#define PCMCIAMASK      0x402f
-
-
+long simpad_get_cs3_ro(void);
+long simpad_get_cs3_shadow(void);
+void simpad_set_cs3_bit(int value);
+void simpad_clear_cs3_bit(int value);
+
+#define VCC_5V_EN	0x0001 /* For 5V PCMCIA */
+#define VCC_3V_EN	0x0002 /* FOR 3.3V PCMCIA */
+#define EN1		0x0004 /* This is only for EPROM's */
+#define EN0		0x0008 /* Both should be enable for 3.3V or 5V */
+#define DISPLAY_ON	0x0010
+#define PCMCIA_BUFF_DIS	0x0020
+#define MQ_RESET	0x0040
+#define PCMCIA_RESET	0x0080
+#define DECT_POWER_ON	0x0100
+#define IRDA_SD		0x0200 /* Shutdown for powersave */
+#define RS232_ON	0x0400
+#define SD_MEDIAQ	0x0800 /* Shutdown for powersave */
+#define LED2_ON		0x1000
+#define IRDA_MODE	0x2000 /* Fast/Slow IrDA mode */
+#define ENABLE_5V	0x4000 /* Enable 5V circuit */
+#define RESET_SIMCARD	0x8000
+
+#define PCMCIA_BVD1	0x01
+#define PCMCIA_BVD2	0x02
+#define PCMCIA_VS1	0x04
+#define PCMCIA_VS2	0x08
+#define LOCK_IND	0x10
+#define CHARGING_STATE	0x20
+#define PCMCIA_SHORT	0x40
+
+/*--- Battery ---*/
 struct simpad_battery {
 	unsigned char ac_status;	/* line connected yes/no */
 	unsigned char status;		/* battery loading yes/no */

index d50f4ee..d25784c 100644
@@ -22,9 +22,6 @@ static unsigned int hw_led_state;
 #define	LED_GREEN	(1)
 #define	LED_MASK	(1)
 
-extern void set_cs3_bit(int value);
-extern void clear_cs3_bit(int value);     
-
 void simpad_leds_event(led_event_t evt)
 {
 	switch (evt)

@@ -93,8 +90,8 @@ void simpad_leds_event(led_event_t evt)
 	}
 
 	if  (led_state & LED_STATE_ENABLED)
-		set_cs3_bit(LED2_ON);
+		simpad_set_cs3_bit(LED2_ON);
 	else 
-	        clear_cs3_bit(LED2_ON);
+		simpad_clear_cs3_bit(LED2_ON);
 }
 

178 lines not on this page · raw message

index c998f7a..540320d 100644
@@ -15,10 +15,6 @@
 #include <mach/simpad.h>
 #include "sa1100_generic.h"
  
-extern long get_cs3_shadow(void);
-extern void set_cs3_bit(int value); 
-extern void clear_cs3_bit(int value);
-
 static struct pcmcia_irqs irqs[] = {
 	{ 1, IRQ_GPIO_CF_CD, "CF_CD" },
 };

@@ -26,7 +22,7 @@ static struct pcmcia_irqs irqs[] = {
 static int simpad_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
 {
 
-	clear_cs3_bit(VCC_3V_EN|VCC_5V_EN|EN0|EN1);
+	simpad_clear_cs3_bit(VCC_3V_EN|VCC_5V_EN|EN0|EN1);
 
 	skt->socket.pci_irq = IRQ_GPIO_CF_IRQ;
 

@@ -38,8 +34,8 @@ static void simpad_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
 	soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs));
 
 	/* Disable CF bus: */
-	//set_cs3_bit(PCMCIA_BUFF_DIS);
-	clear_cs3_bit(PCMCIA_RESET);       
+	/*simpad_set_cs3_bit(PCMCIA_BUFF_DIS);*/
+	simpad_clear_cs3_bit(PCMCIA_RESET);
 }
 
 static void

@@ -47,15 +43,15 @@ simpad_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
 			   struct pcmcia_state *state)
 {
 	unsigned long levels = GPLR;
-	long cs3reg = get_cs3_shadow();
+	long cs3reg = simpad_get_cs3_shadow();
 
 	state->detect=((levels & GPIO_CF_CD)==0)?1:0;
 	state->ready=(levels & GPIO_CF_IRQ)?1:0;
 	state->bvd1=1; /* Not available on Simpad. */
 	state->bvd2=1; /* Not available on Simpad. */
 	state->wrprot=0; /* Not available on Simpad. */
-  
-	if((cs3reg & 0x0c) == 0x0c) {
+
+	if ((cs3reg & 0x0c) == 0x0c) {
 		state->vs_3v=0;
 		state->vs_Xv=0;
 	} else {

@@ -75,23 +71,23 @@ simpad_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
 	/* Murphy: see table of MIC2562a-1 */
 	switch (state->Vcc) {
 	case 0:
-		clear_cs3_bit(VCC_3V_EN|VCC_5V_EN|EN0|EN1);
+		simpad_clear_cs3_bit(VCC_3V_EN|VCC_5V_EN|EN0|EN1);
 		break;
 
 	case 33:  
-		clear_cs3_bit(VCC_3V_EN|EN1);
-		set_cs3_bit(VCC_5V_EN|EN0);
+		simpad_clear_cs3_bit(VCC_3V_EN|EN1);
+		simpad_set_cs3_bit(VCC_5V_EN|EN0);
 		break;
 
 	case 50:
-		clear_cs3_bit(VCC_5V_EN|EN1);
-		set_cs3_bit(VCC_3V_EN|EN0);
+		simpad_clear_cs3_bit(VCC_5V_EN|EN1);
+		simpad_set_cs3_bit(VCC_3V_EN|EN0);
 		break;
 
 	default:
 		printk(KERN_ERR "%s(): unrecognized Vcc %u\n",
 			__func__, state->Vcc);
-		clear_cs3_bit(VCC_3V_EN|VCC_5V_EN|EN0|EN1);
+		simpad_clear_cs3_bit(VCC_3V_EN|VCC_5V_EN|EN0|EN1);
 		local_irq_restore(flags);
 		return -1;
 	}

@@ -110,7 +106,7 @@ static void simpad_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
 static void simpad_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
 {
 	soc_pcmcia_disable_irqs(skt, irqs, ARRAY_SIZE(irqs));
-	set_cs3_bit(PCMCIA_RESET);
+	simpad_set_cs3_bit(PCMCIA_RESET);
 }
 
 static struct pcmcia_low_level simpad_pcmcia_ops = { 

index ec6e381..058a3ee 100644
@@ -29,6 +29,10 @@
 
 #include <linux/serial_core.h>
 #include <linux/ioport.h>
+#include <linux/input.h>
+#include <linux/gpio_keys.h>
+#include <linux/leds.h>
+#include <linux/i2c-gpio.h>
 
 #include "generic.h"
 

@@ -249,6 +253,93 @@ static void simpad_power_off(void)
 
 }
 
+/*
+ * gpio_keys
+ */
+
+static struct gpio_keys_button simpad_button_table[] = {
+	{ KEY_POWER, IRQ_GPIO_POWER_BUTTON, 1, "power button" },
+};
+
+static struct gpio_keys_platform_data simpad_keys_data = {
+	.buttons = simpad_button_table,
+	.nbuttons = ARRAY_SIZE(simpad_button_table),
+};
+
+static struct platform_device simpad_keys = {
+	.name = "gpio-keys",
+	.dev = {
+		.platform_data = &simpad_keys_data,
+	},
+};
+
+static struct gpio_keys_button simpad_polled_button_table[] = {
+	{ KEY_PROG1, SIMPAD_UCB1X00_GPIO_PROG1, 1, "prog1 button" },
+	{ KEY_PROG2, SIMPAD_UCB1X00_GPIO_PROG2, 1, "prog2 button" },
+	{ KEY_UP,    SIMPAD_UCB1X00_GPIO_UP,    1, "up button" },
+	{ KEY_DOWN,  SIMPAD_UCB1X00_GPIO_DOWN,  1, "down button" },
+	{ KEY_LEFT,  SIMPAD_UCB1X00_GPIO_LEFT,  1, "left button" },
+	{ KEY_RIGHT, SIMPAD_UCB1X00_GPIO_RIGHT, 1, "right button" },
+};
+
+static struct gpio_keys_platform_data simpad_polled_keys_data = {
+	.buttons = simpad_polled_button_table,
+	.nbuttons = ARRAY_SIZE(simpad_polled_button_table),
+	.poll_interval = 50,
+};
+
+static struct platform_device simpad_polled_keys = {
+	.name = "gpio-keys-polled",
+	.dev = {
+		.platform_data = &simpad_polled_keys_data,
+	},
+};
+
+/*
+ * GPIO LEDs
+ */
+
+#ifndef CONFIG_LEDS
+static struct gpio_led simpad_leds[] = {
+	{
+		.name = "power",
+		.gpio = SIMPAD_CS3_LED2_ON,
+		.active_low = 0,
+		.default_trigger = "default-on",
+	},
+};
+
+static struct gpio_led_platform_data simpad_led_data = {
+	.num_leds = 1,
+	.leds = simpad_leds,
+};
+
+static struct platform_device simpad_gpio_leds = {
+	.name = "leds-gpio",
+	.id = 0,
+	.dev = {
+		.platform_data = &simpad_led_data,
+	},
+};
+#endif
+
+/*
+ * i2c
+ */
+static struct i2c_gpio_platform_data simpad_i2c_data = {
+	.sda_pin = GPIO_GPIO21,
+	.scl_pin = GPIO_GPIO25,
+	.udelay = 10,
+	.timeout = HZ,
+};
+
+static struct platform_device simpad_i2c = {
+	.name = "i2c-gpio",
+	.id = 0,
+	.dev = {
+		.platform_data = &simpad_i2c_data,
+	},
+};
 
 /*
  * MediaQ Video Device

@@ -259,7 +350,13 @@ static struct platform_device simpad_mq200fb = {
 };
 
 static struct platform_device *devices[] __initdata = {
-	&simpad_mq200fb
+	&simpad_keys,
+	&simpad_polled_keys,
+	&simpad_mq200fb,
+#ifndef CONFIG_LEDS
+	&simpad_gpio_leds,
+#endif
+	&simpad_i2c,
 };