| Marek Vašut | 3597840 | 2008-07-07 17:28:59 +0100 | [diff] [blame] | 1 | /* | 
 | 2 |  * linux/drivers/pcmcia/pxa2xx_palmtx.c | 
 | 3 |  * | 
 | 4 |  * Driver for Palm T|X PCMCIA | 
 | 5 |  * | 
 | 6 |  * Copyright (C) 2007-2008 Marek Vasut <marek.vasut@gmail.com> | 
 | 7 |  * | 
 | 8 |  * This program is free software; you can redistribute it and/or modify | 
 | 9 |  * it under the terms of the GNU General Public License version 2 as | 
 | 10 |  * published by the Free Software Foundation. | 
 | 11 |  * | 
 | 12 |  */ | 
 | 13 |  | 
 | 14 | #include <linux/module.h> | 
 | 15 | #include <linux/platform_device.h> | 
 | 16 |  | 
 | 17 | #include <asm/mach-types.h> | 
 | 18 |  | 
| Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 19 | #include <mach/gpio.h> | 
 | 20 | #include <mach/palmtx.h> | 
| Marek Vašut | 3597840 | 2008-07-07 17:28:59 +0100 | [diff] [blame] | 21 |  | 
 | 22 | #include "soc_common.h" | 
 | 23 |  | 
 | 24 | static int palmtx_pcmcia_hw_init(struct soc_pcmcia_socket *skt) | 
 | 25 | { | 
| Marek Vašut | 574047f | 2008-08-16 15:34:11 +0100 | [diff] [blame] | 26 | 	int ret; | 
 | 27 |  | 
 | 28 | 	ret = gpio_request(GPIO_NR_PALMTX_PCMCIA_POWER1, "PCMCIA PWR1"); | 
 | 29 | 	if (ret) | 
 | 30 | 		goto err1; | 
 | 31 | 	ret = gpio_direction_output(GPIO_NR_PALMTX_PCMCIA_POWER1, 0); | 
 | 32 | 	if (ret) | 
 | 33 | 		goto err2; | 
 | 34 |  | 
 | 35 | 	ret = gpio_request(GPIO_NR_PALMTX_PCMCIA_POWER2, "PCMCIA PWR2"); | 
 | 36 | 	if (ret) | 
 | 37 | 		goto err2; | 
 | 38 | 	ret = gpio_direction_output(GPIO_NR_PALMTX_PCMCIA_POWER2, 0); | 
 | 39 | 	if (ret) | 
 | 40 | 		goto err3; | 
 | 41 |  | 
 | 42 | 	ret = gpio_request(GPIO_NR_PALMTX_PCMCIA_RESET, "PCMCIA RST"); | 
 | 43 | 	if (ret) | 
 | 44 | 		goto err3; | 
 | 45 | 	ret = gpio_direction_output(GPIO_NR_PALMTX_PCMCIA_RESET, 1); | 
 | 46 | 	if (ret) | 
 | 47 | 		goto err4; | 
 | 48 |  | 
 | 49 | 	ret = gpio_request(GPIO_NR_PALMTX_PCMCIA_READY, "PCMCIA RDY"); | 
 | 50 | 	if (ret) | 
 | 51 | 		goto err4; | 
 | 52 | 	ret = gpio_direction_input(GPIO_NR_PALMTX_PCMCIA_READY); | 
 | 53 | 	if (ret) | 
 | 54 | 		goto err5; | 
 | 55 |  | 
| Russell King - ARM Linux | 66024db | 2009-03-29 22:45:26 +0100 | [diff] [blame] | 56 | 	skt->socket.pci_irq = gpio_to_irq(GPIO_NR_PALMTX_PCMCIA_READY); | 
| Marek Vašut | 3597840 | 2008-07-07 17:28:59 +0100 | [diff] [blame] | 57 | 	return 0; | 
| Marek Vašut | 574047f | 2008-08-16 15:34:11 +0100 | [diff] [blame] | 58 |  | 
 | 59 | err5: | 
 | 60 | 	gpio_free(GPIO_NR_PALMTX_PCMCIA_READY); | 
 | 61 | err4: | 
 | 62 | 	gpio_free(GPIO_NR_PALMTX_PCMCIA_RESET); | 
 | 63 | err3: | 
 | 64 | 	gpio_free(GPIO_NR_PALMTX_PCMCIA_POWER2); | 
 | 65 | err2: | 
 | 66 | 	gpio_free(GPIO_NR_PALMTX_PCMCIA_POWER1); | 
 | 67 | err1: | 
 | 68 | 	return ret; | 
| Marek Vašut | 3597840 | 2008-07-07 17:28:59 +0100 | [diff] [blame] | 69 | } | 
 | 70 |  | 
 | 71 | static void palmtx_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) | 
 | 72 | { | 
| Marek Vašut | 574047f | 2008-08-16 15:34:11 +0100 | [diff] [blame] | 73 | 	gpio_free(GPIO_NR_PALMTX_PCMCIA_READY); | 
 | 74 | 	gpio_free(GPIO_NR_PALMTX_PCMCIA_RESET); | 
 | 75 | 	gpio_free(GPIO_NR_PALMTX_PCMCIA_POWER2); | 
 | 76 | 	gpio_free(GPIO_NR_PALMTX_PCMCIA_POWER1); | 
| Marek Vašut | 3597840 | 2008-07-07 17:28:59 +0100 | [diff] [blame] | 77 | } | 
 | 78 |  | 
 | 79 | static void palmtx_pcmcia_socket_state(struct soc_pcmcia_socket *skt, | 
 | 80 | 					struct pcmcia_state *state) | 
 | 81 | { | 
 | 82 | 	state->detect = 1; /* always inserted */ | 
 | 83 | 	state->ready  = !!gpio_get_value(GPIO_NR_PALMTX_PCMCIA_READY); | 
 | 84 | 	state->bvd1   = 1; | 
 | 85 | 	state->bvd2   = 1; | 
 | 86 | 	state->wrprot = 0; | 
 | 87 | 	state->vs_3v  = 1; | 
 | 88 | 	state->vs_Xv  = 0; | 
 | 89 | } | 
 | 90 |  | 
 | 91 | static int | 
 | 92 | palmtx_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, | 
 | 93 | 				const socket_state_t *state) | 
 | 94 | { | 
 | 95 | 	gpio_set_value(GPIO_NR_PALMTX_PCMCIA_POWER1, 1); | 
 | 96 | 	gpio_set_value(GPIO_NR_PALMTX_PCMCIA_POWER2, 1); | 
 | 97 | 	gpio_set_value(GPIO_NR_PALMTX_PCMCIA_RESET, | 
 | 98 | 			!!(state->flags & SS_RESET)); | 
 | 99 |  | 
 | 100 | 	return 0; | 
 | 101 | } | 
 | 102 |  | 
 | 103 | static void palmtx_pcmcia_socket_init(struct soc_pcmcia_socket *skt) | 
 | 104 | { | 
 | 105 | } | 
 | 106 |  | 
 | 107 | static void palmtx_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt) | 
 | 108 | { | 
 | 109 | } | 
 | 110 |  | 
 | 111 | static struct pcmcia_low_level palmtx_pcmcia_ops = { | 
 | 112 | 	.owner			= THIS_MODULE, | 
 | 113 |  | 
 | 114 | 	.first			= 0, | 
 | 115 | 	.nr			= 1, | 
 | 116 |  | 
 | 117 | 	.hw_init		= palmtx_pcmcia_hw_init, | 
 | 118 | 	.hw_shutdown		= palmtx_pcmcia_hw_shutdown, | 
 | 119 |  | 
 | 120 | 	.socket_state		= palmtx_pcmcia_socket_state, | 
 | 121 | 	.configure_socket	= palmtx_pcmcia_configure_socket, | 
 | 122 |  | 
 | 123 | 	.socket_init		= palmtx_pcmcia_socket_init, | 
 | 124 | 	.socket_suspend		= palmtx_pcmcia_socket_suspend, | 
 | 125 | }; | 
 | 126 |  | 
 | 127 | static struct platform_device *palmtx_pcmcia_device; | 
 | 128 |  | 
 | 129 | static int __init palmtx_pcmcia_init(void) | 
 | 130 | { | 
 | 131 | 	int ret; | 
 | 132 |  | 
 | 133 | 	if (!machine_is_palmtx()) | 
 | 134 | 		return -ENODEV; | 
 | 135 |  | 
 | 136 | 	palmtx_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1); | 
 | 137 | 	if (!palmtx_pcmcia_device) | 
 | 138 | 		return -ENOMEM; | 
 | 139 |  | 
 | 140 | 	ret = platform_device_add_data(palmtx_pcmcia_device, &palmtx_pcmcia_ops, | 
 | 141 | 					sizeof(palmtx_pcmcia_ops)); | 
 | 142 |  | 
 | 143 | 	if (!ret) | 
 | 144 | 		ret = platform_device_add(palmtx_pcmcia_device); | 
 | 145 |  | 
 | 146 | 	if (ret) | 
 | 147 | 		platform_device_put(palmtx_pcmcia_device); | 
 | 148 |  | 
 | 149 | 	return ret; | 
 | 150 | } | 
 | 151 |  | 
 | 152 | static void __exit palmtx_pcmcia_exit(void) | 
 | 153 | { | 
 | 154 | 	platform_device_unregister(palmtx_pcmcia_device); | 
 | 155 | } | 
 | 156 |  | 
| Marek Vašut | 574047f | 2008-08-16 15:34:11 +0100 | [diff] [blame] | 157 | module_init(palmtx_pcmcia_init); | 
| Marek Vašut | 3597840 | 2008-07-07 17:28:59 +0100 | [diff] [blame] | 158 | module_exit(palmtx_pcmcia_exit); | 
 | 159 |  | 
 | 160 | MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>"); | 
 | 161 | MODULE_DESCRIPTION("PCMCIA support for Palm T|X"); | 
 | 162 | MODULE_ALIAS("platform:pxa2xx-pcmcia"); | 
 | 163 | MODULE_LICENSE("GPL"); |