| 
									
										
										
										
											2008-07-07 17:28:59 +01:00
										 |  |  | /*
 | 
					
						
							|  |  |  |  * linux/drivers/pcmcia/pxa2xx_palmtx.c | 
					
						
							|  |  |  |  * | 
					
						
							|  |  |  |  * Driver for Palm T|X PCMCIA | 
					
						
							|  |  |  |  * | 
					
						
							|  |  |  |  * Copyright (C) 2007-2008 Marek Vasut <marek.vasut@gmail.com> | 
					
						
							|  |  |  |  * | 
					
						
							|  |  |  |  * This program is free software; you can redistribute it and/or modify | 
					
						
							|  |  |  |  * it under the terms of the GNU General Public License version 2 as | 
					
						
							|  |  |  |  * published by the Free Software Foundation. | 
					
						
							|  |  |  |  * | 
					
						
							|  |  |  |  */ | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | #include <linux/module.h>
 | 
					
						
							|  |  |  | #include <linux/platform_device.h>
 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | #include <asm/mach-types.h>
 | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2008-08-05 16:14:15 +01:00
										 |  |  | #include <mach/gpio.h>
 | 
					
						
							|  |  |  | #include <mach/palmtx.h>
 | 
					
						
							| 
									
										
										
										
											2008-07-07 17:28:59 +01:00
										 |  |  | 
 | 
					
						
							|  |  |  | #include "soc_common.h"
 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | static int palmtx_pcmcia_hw_init(struct soc_pcmcia_socket *skt) | 
					
						
							|  |  |  | { | 
					
						
							| 
									
										
										
										
											2008-08-16 15:34:11 +01:00
										 |  |  | 	int ret; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	ret = gpio_request(GPIO_NR_PALMTX_PCMCIA_POWER1, "PCMCIA PWR1"); | 
					
						
							|  |  |  | 	if (ret) | 
					
						
							|  |  |  | 		goto err1; | 
					
						
							|  |  |  | 	ret = gpio_direction_output(GPIO_NR_PALMTX_PCMCIA_POWER1, 0); | 
					
						
							|  |  |  | 	if (ret) | 
					
						
							|  |  |  | 		goto err2; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	ret = gpio_request(GPIO_NR_PALMTX_PCMCIA_POWER2, "PCMCIA PWR2"); | 
					
						
							|  |  |  | 	if (ret) | 
					
						
							|  |  |  | 		goto err2; | 
					
						
							|  |  |  | 	ret = gpio_direction_output(GPIO_NR_PALMTX_PCMCIA_POWER2, 0); | 
					
						
							|  |  |  | 	if (ret) | 
					
						
							|  |  |  | 		goto err3; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	ret = gpio_request(GPIO_NR_PALMTX_PCMCIA_RESET, "PCMCIA RST"); | 
					
						
							|  |  |  | 	if (ret) | 
					
						
							|  |  |  | 		goto err3; | 
					
						
							|  |  |  | 	ret = gpio_direction_output(GPIO_NR_PALMTX_PCMCIA_RESET, 1); | 
					
						
							|  |  |  | 	if (ret) | 
					
						
							|  |  |  | 		goto err4; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	ret = gpio_request(GPIO_NR_PALMTX_PCMCIA_READY, "PCMCIA RDY"); | 
					
						
							|  |  |  | 	if (ret) | 
					
						
							|  |  |  | 		goto err4; | 
					
						
							|  |  |  | 	ret = gpio_direction_input(GPIO_NR_PALMTX_PCMCIA_READY); | 
					
						
							|  |  |  | 	if (ret) | 
					
						
							|  |  |  | 		goto err5; | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2009-03-29 22:45:26 +01:00
										 |  |  | 	skt->socket.pci_irq = gpio_to_irq(GPIO_NR_PALMTX_PCMCIA_READY); | 
					
						
							| 
									
										
										
										
											2008-07-07 17:28:59 +01:00
										 |  |  | 	return 0; | 
					
						
							| 
									
										
										
										
											2008-08-16 15:34:11 +01:00
										 |  |  | 
 | 
					
						
							|  |  |  | err5: | 
					
						
							|  |  |  | 	gpio_free(GPIO_NR_PALMTX_PCMCIA_READY); | 
					
						
							|  |  |  | err4: | 
					
						
							|  |  |  | 	gpio_free(GPIO_NR_PALMTX_PCMCIA_RESET); | 
					
						
							|  |  |  | err3: | 
					
						
							|  |  |  | 	gpio_free(GPIO_NR_PALMTX_PCMCIA_POWER2); | 
					
						
							|  |  |  | err2: | 
					
						
							|  |  |  | 	gpio_free(GPIO_NR_PALMTX_PCMCIA_POWER1); | 
					
						
							|  |  |  | err1: | 
					
						
							|  |  |  | 	return ret; | 
					
						
							| 
									
										
										
										
											2008-07-07 17:28:59 +01:00
										 |  |  | } | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | static void palmtx_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) | 
					
						
							|  |  |  | { | 
					
						
							| 
									
										
										
										
											2008-08-16 15:34:11 +01:00
										 |  |  | 	gpio_free(GPIO_NR_PALMTX_PCMCIA_READY); | 
					
						
							|  |  |  | 	gpio_free(GPIO_NR_PALMTX_PCMCIA_RESET); | 
					
						
							|  |  |  | 	gpio_free(GPIO_NR_PALMTX_PCMCIA_POWER2); | 
					
						
							|  |  |  | 	gpio_free(GPIO_NR_PALMTX_PCMCIA_POWER1); | 
					
						
							| 
									
										
										
										
											2008-07-07 17:28:59 +01:00
										 |  |  | } | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | static void palmtx_pcmcia_socket_state(struct soc_pcmcia_socket *skt, | 
					
						
							|  |  |  | 					struct pcmcia_state *state) | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  | 	state->detect = 1; /* always inserted */ | 
					
						
							|  |  |  | 	state->ready  = !!gpio_get_value(GPIO_NR_PALMTX_PCMCIA_READY); | 
					
						
							|  |  |  | 	state->bvd1   = 1; | 
					
						
							|  |  |  | 	state->bvd2   = 1; | 
					
						
							|  |  |  | 	state->wrprot = 0; | 
					
						
							|  |  |  | 	state->vs_3v  = 1; | 
					
						
							|  |  |  | 	state->vs_Xv  = 0; | 
					
						
							|  |  |  | } | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | static int | 
					
						
							|  |  |  | palmtx_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, | 
					
						
							|  |  |  | 				const socket_state_t *state) | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  | 	gpio_set_value(GPIO_NR_PALMTX_PCMCIA_POWER1, 1); | 
					
						
							|  |  |  | 	gpio_set_value(GPIO_NR_PALMTX_PCMCIA_POWER2, 1); | 
					
						
							|  |  |  | 	gpio_set_value(GPIO_NR_PALMTX_PCMCIA_RESET, | 
					
						
							|  |  |  | 			!!(state->flags & SS_RESET)); | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	return 0; | 
					
						
							|  |  |  | } | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | static void palmtx_pcmcia_socket_init(struct soc_pcmcia_socket *skt) | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  | } | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | static void palmtx_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt) | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  | } | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | static struct pcmcia_low_level palmtx_pcmcia_ops = { | 
					
						
							|  |  |  | 	.owner			= THIS_MODULE, | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	.first			= 0, | 
					
						
							|  |  |  | 	.nr			= 1, | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	.hw_init		= palmtx_pcmcia_hw_init, | 
					
						
							|  |  |  | 	.hw_shutdown		= palmtx_pcmcia_hw_shutdown, | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	.socket_state		= palmtx_pcmcia_socket_state, | 
					
						
							|  |  |  | 	.configure_socket	= palmtx_pcmcia_configure_socket, | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	.socket_init		= palmtx_pcmcia_socket_init, | 
					
						
							|  |  |  | 	.socket_suspend		= palmtx_pcmcia_socket_suspend, | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | static struct platform_device *palmtx_pcmcia_device; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | static int __init palmtx_pcmcia_init(void) | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  | 	int ret; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	if (!machine_is_palmtx()) | 
					
						
							|  |  |  | 		return -ENODEV; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	palmtx_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1); | 
					
						
							|  |  |  | 	if (!palmtx_pcmcia_device) | 
					
						
							|  |  |  | 		return -ENOMEM; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	ret = platform_device_add_data(palmtx_pcmcia_device, &palmtx_pcmcia_ops, | 
					
						
							|  |  |  | 					sizeof(palmtx_pcmcia_ops)); | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	if (!ret) | 
					
						
							|  |  |  | 		ret = platform_device_add(palmtx_pcmcia_device); | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	if (ret) | 
					
						
							|  |  |  | 		platform_device_put(palmtx_pcmcia_device); | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	return ret; | 
					
						
							|  |  |  | } | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | static void __exit palmtx_pcmcia_exit(void) | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  | 	platform_device_unregister(palmtx_pcmcia_device); | 
					
						
							|  |  |  | } | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2008-08-16 15:34:11 +01:00
										 |  |  | module_init(palmtx_pcmcia_init); | 
					
						
							| 
									
										
										
										
											2008-07-07 17:28:59 +01:00
										 |  |  | module_exit(palmtx_pcmcia_exit); | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>"); | 
					
						
							|  |  |  | MODULE_DESCRIPTION("PCMCIA support for Palm T|X"); | 
					
						
							|  |  |  | MODULE_ALIAS("platform:pxa2xx-pcmcia"); | 
					
						
							|  |  |  | MODULE_LICENSE("GPL"); |