[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / pcmcia / sa1100_shannon.c

/*
 * drivers/pcmcia/sa1100_shannon.c
 *
 * PCMCIA implementation routines for Shannon
 *
 */
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/init.h>
#include <linux/io.h>

#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <mach/shannon.h>
#include <asm/irq.h>
#include "sa1100_generic.h"

static int shannon_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
{
	/* All those are inputs */
	GAFR &= ~(GPIO_GPIO(SHANNON_GPIO_EJECT_0) |
		  GPIO_GPIO(SHANNON_GPIO_EJECT_1) |
		  GPIO_GPIO(SHANNON_GPIO_RDY_0) |
		  GPIO_GPIO(SHANNON_GPIO_RDY_1));

	if (skt->nr == 0) {
		skt->stat[SOC_STAT_CD].gpio = SHANNON_GPIO_EJECT_0;
		skt->stat[SOC_STAT_CD].name = "PCMCIA_CD_0";
		skt->stat[SOC_STAT_RDY].gpio = SHANNON_GPIO_RDY_0;
		skt->stat[SOC_STAT_RDY].name = "PCMCIA_RDY_0";
	} else {
		skt->stat[SOC_STAT_CD].gpio = SHANNON_GPIO_EJECT_1;
		skt->stat[SOC_STAT_CD].name = "PCMCIA_CD_1";
		skt->stat[SOC_STAT_RDY].gpio = SHANNON_GPIO_RDY_1;
		skt->stat[SOC_STAT_RDY].name = "PCMCIA_RDY_1";
	}

	return 0;
}

static void
shannon_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
			    struct pcmcia_state *state)
{
	switch (skt->nr) {
	case 0:
		state->bvd1   = 1; 
		state->bvd2   = 1; 
		state->vs_3v  = 1; /* FIXME Can only apply 3.3V on Shannon. */
		state->vs_Xv  = 0;
		break;

	case 1:
		state->bvd1   = 1; 
		state->bvd2   = 1; 
		state->vs_3v  = 1; /* FIXME Can only apply 3.3V on Shannon. */
		state->vs_Xv  = 0;
		break;
	}
}

static int
shannon_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
				const socket_state_t *state)
{
	switch (state->Vcc) {
	case 0:	/* power off */
		printk(KERN_WARNING "%s(): CS asked for 0V, still applying 3.3V..\n", __func__);
		break;
	case 50:
		printk(KERN_WARNING "%s(): CS asked for 5V, applying 3.3V..\n", __func__);
	case 33:
		break;
	default:
		printk(KERN_ERR "%s(): unrecognized Vcc %u\n",
		       __func__, state->Vcc);
		return -1;
	}

	printk(KERN_WARNING "%s(): Warning, Can't perform reset\n", __func__);
	
	/* Silently ignore Vpp, output enable, speaker enable. */

	return 0;
}

static struct pcmcia_low_level shannon_pcmcia_ops = {
	.owner			= THIS_MODULE,
	.hw_init		= shannon_pcmcia_hw_init,
	.socket_state		= shannon_pcmcia_socket_state,
	.configure_socket	= shannon_pcmcia_configure_socket,
};

int pcmcia_shannon_init(struct device *dev)
{
	int ret = -ENODEV;

	if (machine_is_shannon())
		ret = sa11xx_drv_pcmcia_probe(dev, &shannon_pcmcia_ops, 0, 2);

	return ret;
}
Commit	Line	Data
1da177e4 LT	1	/*
	2	* drivers/pcmcia/sa1100_shannon.c
	3	*
	4	* PCMCIA implementation routines for Shannon
	5	*
	6	*/
	7	#include <linux/module.h>
	8	#include <linux/kernel.h>
1da177e4 LT	9	#include <linux/device.h>
1da177e4 LT	10	#include <linux/init.h>
3169663a	11	#include <linux/io.h>
1da177e4	12
a09e64fb	13	#include <mach/hardware.h>
1da177e4	14	#include <asm/mach-types.h>
a09e64fb	15	#include <mach/shannon.h>
1da177e4 LT	16	#include <asm/irq.h>
	17	#include "sa1100_generic.h"
	18
1da177e4 LT	19	static int shannon_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
	20	{
	21	/* All those are inputs */
3b61436a RK	22	GAFR &= ~(GPIO_GPIO(SHANNON_GPIO_EJECT_0) \|
	23	GPIO_GPIO(SHANNON_GPIO_EJECT_1) \|
	24	GPIO_GPIO(SHANNON_GPIO_RDY_0) \|
	25	GPIO_GPIO(SHANNON_GPIO_RDY_1));
	26
	27	if (skt->nr == 0) {
	28	skt->stat[SOC_STAT_CD].gpio = SHANNON_GPIO_EJECT_0;
	29	skt->stat[SOC_STAT_CD].name = "PCMCIA_CD_0";
	30	skt->stat[SOC_STAT_RDY].gpio = SHANNON_GPIO_RDY_0;
	31	skt->stat[SOC_STAT_RDY].name = "PCMCIA_RDY_0";
	32	} else {
	33	skt->stat[SOC_STAT_CD].gpio = SHANNON_GPIO_EJECT_1;
	34	skt->stat[SOC_STAT_CD].name = "PCMCIA_CD_1";
	35	skt->stat[SOC_STAT_RDY].gpio = SHANNON_GPIO_RDY_1;
	36	skt->stat[SOC_STAT_RDY].name = "PCMCIA_RDY_1";
	37	}
1da177e4	38
3b61436a	39	return 0;
1da177e4 LT	40	}
	41
	42	static void
	43	shannon_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
	44	struct pcmcia_state *state)
	45	{
1da177e4 LT	46	switch (skt->nr) {
1da177e4 LT	47	case 0:
1da177e4 LT	48	state->bvd1 = 1;
	49	state->bvd2 = 1;
	50	state->vs_3v = 1; /* FIXME Can only apply 3.3V on Shannon. */
	51	state->vs_Xv = 0;
	52	break;
	53
	54	case 1:
1da177e4 LT	55	state->bvd1 = 1;
	56	state->bvd2 = 1;
	57	state->vs_3v = 1; /* FIXME Can only apply 3.3V on Shannon. */
	58	state->vs_Xv = 0;
	59	break;
	60	}
	61	}
	62
	63	static int
	64	shannon_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
	65	const socket_state_t *state)
	66	{
	67	switch (state->Vcc) {
	68	case 0: /* power off */
2e11cb4c	69	printk(KERN_WARNING "%s(): CS asked for 0V, still applying 3.3V..\n", __func__);
1da177e4 LT	70	break;
1da177e4 LT	71	case 50:
2e11cb4c	72	printk(KERN_WARNING "%s(): CS asked for 5V, applying 3.3V..\n", __func__);
1da177e4 LT	73	case 33:
	74	break;
	75	default:
	76	printk(KERN_ERR "%s(): unrecognized Vcc %u\n",
2e11cb4c	77	__func__, state->Vcc);
1da177e4 LT	78	return -1;
	79	}
	80
2e11cb4c	81	printk(KERN_WARNING "%s(): Warning, Can't perform reset\n", __func__);
1da177e4 LT	82
	83	/* Silently ignore Vpp, output enable, speaker enable. */
	84
	85	return 0;
	86	}
	87
1da177e4 LT	88	static struct pcmcia_low_level shannon_pcmcia_ops = {
	89	.owner = THIS_MODULE,
	90	.hw_init = shannon_pcmcia_hw_init,
1da177e4 LT	91	.socket_state = shannon_pcmcia_socket_state,
1da177e4 LT	92	.configure_socket = shannon_pcmcia_configure_socket,
1da177e4 LT	93	};
1da177e4 LT	94
34cdf25a	95	int pcmcia_shannon_init(struct device *dev)
1da177e4 LT	96	{
	97	int ret = -ENODEV;
	98
	99	if (machine_is_shannon())
	100	ret = sa11xx_drv_pcmcia_probe(dev, &shannon_pcmcia_ops, 0, 2);
	101
	102	return ret;
	103	}