[thirdparty/linux.git] / drivers / pcmcia / pxa2xx_e740.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Toshiba e740 PCMCIA specific routines.
 *
 * (c) 2004 Ian Molton <spyro@f2s.com>
 */

#include <linux/init.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/gpio.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>

#include <mach/eseries-gpio.h>

#include <asm/irq.h>
#include <asm/mach-types.h>

#include "soc_common.h"

static int e740_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
{
	if (skt->nr == 0) {
		skt->stat[SOC_STAT_CD].gpio = GPIO_E740_PCMCIA_CD0;
		skt->stat[SOC_STAT_CD].name = "CF card detect";
		skt->stat[SOC_STAT_RDY].gpio = GPIO_E740_PCMCIA_RDY0;
		skt->stat[SOC_STAT_RDY].name = "CF ready";
	} else {
		skt->stat[SOC_STAT_CD].gpio = GPIO_E740_PCMCIA_CD1;
		skt->stat[SOC_STAT_CD].name = "Wifi switch";
		skt->stat[SOC_STAT_RDY].gpio = GPIO_E740_PCMCIA_RDY1;
		skt->stat[SOC_STAT_RDY].name = "Wifi ready";
	}

	return 0;
}

static void e740_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
					struct pcmcia_state *state)
{
	state->vs_3v  = 1;
	state->vs_Xv  = 0;
}

static int e740_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
					const socket_state_t *state)
{
	if (state->flags & SS_RESET) {
		if (skt->nr == 0)
			gpio_set_value(GPIO_E740_PCMCIA_RST0, 1);
		else
			gpio_set_value(GPIO_E740_PCMCIA_RST1, 1);
	} else {
		if (skt->nr == 0)
			gpio_set_value(GPIO_E740_PCMCIA_RST0, 0);
		else
			gpio_set_value(GPIO_E740_PCMCIA_RST1, 0);
	}

	switch (state->Vcc) {
	case 0:	/* Socket off */
		if (skt->nr == 0)
			gpio_set_value(GPIO_E740_PCMCIA_PWR0, 0);
		else
			gpio_set_value(GPIO_E740_PCMCIA_PWR1, 1);
		break;
	case 50:
	case 33: /* socket on */
		if (skt->nr == 0)
			gpio_set_value(GPIO_E740_PCMCIA_PWR0, 1);
		else
			gpio_set_value(GPIO_E740_PCMCIA_PWR1, 0);
		break;
	default:
		printk(KERN_ERR "e740_cs: Unsupported Vcc: %d\n", state->Vcc);
	}

	return 0;
}

static struct pcmcia_low_level e740_pcmcia_ops = {
	.owner            = THIS_MODULE,
	.hw_init          = e740_pcmcia_hw_init,
	.socket_state     = e740_pcmcia_socket_state,
	.configure_socket = e740_pcmcia_configure_socket,
	.nr               = 2,
};

static struct platform_device *e740_pcmcia_device;

static int __init e740_pcmcia_init(void)
{
	int ret;

	if (!machine_is_e740())
		return -ENODEV;

	e740_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
	if (!e740_pcmcia_device)
		return -ENOMEM;

	ret = platform_device_add_data(e740_pcmcia_device, &e740_pcmcia_ops,
					sizeof(e740_pcmcia_ops));

	if (!ret)
		ret = platform_device_add(e740_pcmcia_device);

	if (ret)
		platform_device_put(e740_pcmcia_device);

	return ret;
}

static void __exit e740_pcmcia_exit(void)
{
	platform_device_unregister(e740_pcmcia_device);
}

module_init(e740_pcmcia_init);
module_exit(e740_pcmcia_exit);

MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
MODULE_ALIAS("platform:pxa2xx-pcmcia");
MODULE_DESCRIPTION("e740 PCMCIA platform support");
Commit	Line	Data
d2912cb1	1	// SPDX-License-Identifier: GPL-2.0-only
e38a9707 IM	2	/*
	3	* Toshiba e740 PCMCIA specific routines.
	4	*
	5	* (c) 2004 Ian Molton <spyro@f2s.com>
e38a9707 IM	6	*/
	7
	8	#include <linux/init.h>
	9	#include <linux/module.h>
	10	#include <linux/kernel.h>
	11	#include <linux/errno.h>
	12	#include <linux/gpio.h>
	13	#include <linux/interrupt.h>
	14	#include <linux/platform_device.h>
	15
e38a9707 IM	16	#include <mach/eseries-gpio.h>
	17
	18	#include <asm/irq.h>
	19	#include <asm/mach-types.h>
	20
	21	#include "soc_common.h"
	22
e38a9707 IM	23	static int e740_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
e38a9707 IM	24	{
a9bb5a4b RK	25	if (skt->nr == 0) {
	26	skt->stat[SOC_STAT_CD].gpio = GPIO_E740_PCMCIA_CD0;
	27	skt->stat[SOC_STAT_CD].name = "CF card detect";
	28	skt->stat[SOC_STAT_RDY].gpio = GPIO_E740_PCMCIA_RDY0;
	29	skt->stat[SOC_STAT_RDY].name = "CF ready";
	30	} else {
	31	skt->stat[SOC_STAT_CD].gpio = GPIO_E740_PCMCIA_CD1;
	32	skt->stat[SOC_STAT_CD].name = "Wifi switch";
	33	skt->stat[SOC_STAT_RDY].gpio = GPIO_E740_PCMCIA_RDY1;
	34	skt->stat[SOC_STAT_RDY].name = "Wifi ready";
	35	}
e38a9707	36
a9bb5a4b	37	return 0;
e38a9707 IM	38	}
	39
	40	static void e740_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
	41	struct pcmcia_state *state)
	42	{
e38a9707	43	state->vs_3v = 1;
e38a9707 IM	44	state->vs_Xv = 0;
	45	}
	46
	47	static int e740_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
	48	const socket_state_t *state)
	49	{
	50	if (state->flags & SS_RESET) {
	51	if (skt->nr == 0)
	52	gpio_set_value(GPIO_E740_PCMCIA_RST0, 1);
	53	else
	54	gpio_set_value(GPIO_E740_PCMCIA_RST1, 1);
	55	} else {
	56	if (skt->nr == 0)
	57	gpio_set_value(GPIO_E740_PCMCIA_RST0, 0);
	58	else
	59	gpio_set_value(GPIO_E740_PCMCIA_RST1, 0);
	60	}
	61
	62	switch (state->Vcc) {
	63	case 0: /* Socket off */
	64	if (skt->nr == 0)
	65	gpio_set_value(GPIO_E740_PCMCIA_PWR0, 0);
	66	else
	67	gpio_set_value(GPIO_E740_PCMCIA_PWR1, 1);
	68	break;
	69	case 50:
	70	case 33: /* socket on */
	71	if (skt->nr == 0)
	72	gpio_set_value(GPIO_E740_PCMCIA_PWR0, 1);
	73	else
	74	gpio_set_value(GPIO_E740_PCMCIA_PWR1, 0);
	75	break;
	76	default:
	77	printk(KERN_ERR "e740_cs: Unsupported Vcc: %d\n", state->Vcc);
	78	}
	79
	80	return 0;
	81	}
	82
e38a9707 IM	83	static struct pcmcia_low_level e740_pcmcia_ops = {
	84	.owner = THIS_MODULE,
	85	.hw_init = e740_pcmcia_hw_init,
e38a9707 IM	86	.socket_state = e740_pcmcia_socket_state,
e38a9707 IM	87	.configure_socket = e740_pcmcia_configure_socket,
e38a9707 IM	88	.nr = 2,
	89	};
	90
	91	static struct platform_device *e740_pcmcia_device;
	92
	93	static int __init e740_pcmcia_init(void)
	94	{
	95	int ret;
	96
	97	if (!machine_is_e740())
	98	return -ENODEV;
	99
	100	e740_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
	101	if (!e740_pcmcia_device)
	102	return -ENOMEM;
	103
	104	ret = platform_device_add_data(e740_pcmcia_device, &e740_pcmcia_ops,
	105	sizeof(e740_pcmcia_ops));
	106
	107	if (!ret)
	108	ret = platform_device_add(e740_pcmcia_device);
	109
	110	if (ret)
	111	platform_device_put(e740_pcmcia_device);
	112
	113	return ret;
	114	}
	115
	116	static void __exit e740_pcmcia_exit(void)
	117	{
	118	platform_device_unregister(e740_pcmcia_device);
	119	}
	120
	121	module_init(e740_pcmcia_init);
	122	module_exit(e740_pcmcia_exit);
	123
	124	MODULE_LICENSE("GPL v2");
	125	MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
	126	MODULE_ALIAS("platform:pxa2xx-pcmcia");
	127	MODULE_DESCRIPTION("e740 PCMCIA platform support");