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 | * |
Marek Vasut | 9ed3fbf | 2011-01-15 19:22:19 +0100 | [diff] [blame^] | 6 | * Copyright (C) 2007-2011 Marek Vasut <marek.vasut@gmail.com> |
Marek Vašut | 3597840 | 2008-07-07 17:28:59 +0100 | [diff] [blame] | 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> |
Marek Vasut | 235a175 | 2011-01-15 18:59:55 +0100 | [diff] [blame] | 16 | #include <linux/gpio.h> |
Marek Vašut | 3597840 | 2008-07-07 17:28:59 +0100 | [diff] [blame] | 17 | |
| 18 | #include <asm/mach-types.h> |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 19 | #include <mach/palmtx.h> |
Marek Vašut | 3597840 | 2008-07-07 17:28:59 +0100 | [diff] [blame] | 20 | #include "soc_common.h" |
| 21 | |
Marek Vasut | 235a175 | 2011-01-15 18:59:55 +0100 | [diff] [blame] | 22 | static struct gpio palmtx_pcmcia_gpios[] = { |
| 23 | { GPIO_NR_PALMTX_PCMCIA_POWER1, GPIOF_INIT_LOW, "PCMCIA Power 1" }, |
| 24 | { GPIO_NR_PALMTX_PCMCIA_POWER2, GPIOF_INIT_LOW, "PCMCIA Power 2" }, |
| 25 | { GPIO_NR_PALMTX_PCMCIA_RESET, GPIOF_INIT_HIGH,"PCMCIA Reset" }, |
| 26 | { GPIO_NR_PALMTX_PCMCIA_READY, GPIOF_IN, "PCMCIA Ready" }, |
| 27 | }; |
| 28 | |
Marek Vašut | 3597840 | 2008-07-07 17:28:59 +0100 | [diff] [blame] | 29 | static int palmtx_pcmcia_hw_init(struct soc_pcmcia_socket *skt) |
| 30 | { |
Marek Vašut | 574047f | 2008-08-16 15:34:11 +0100 | [diff] [blame] | 31 | int ret; |
| 32 | |
Marek Vasut | 235a175 | 2011-01-15 18:59:55 +0100 | [diff] [blame] | 33 | ret = gpio_request_array(palmtx_pcmcia_gpios, |
| 34 | ARRAY_SIZE(palmtx_pcmcia_gpios)); |
Marek Vašut | 574047f | 2008-08-16 15:34:11 +0100 | [diff] [blame] | 35 | |
Russell King - ARM Linux | 66024db | 2009-03-29 22:45:26 +0100 | [diff] [blame] | 36 | skt->socket.pci_irq = gpio_to_irq(GPIO_NR_PALMTX_PCMCIA_READY); |
Marek Vašut | 574047f | 2008-08-16 15:34:11 +0100 | [diff] [blame] | 37 | |
Marek Vašut | 574047f | 2008-08-16 15:34:11 +0100 | [diff] [blame] | 38 | return ret; |
Marek Vašut | 3597840 | 2008-07-07 17:28:59 +0100 | [diff] [blame] | 39 | } |
| 40 | |
| 41 | static void palmtx_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) |
| 42 | { |
Marek Vasut | 235a175 | 2011-01-15 18:59:55 +0100 | [diff] [blame] | 43 | gpio_free_array(palmtx_pcmcia_gpios, ARRAY_SIZE(palmtx_pcmcia_gpios)); |
Marek Vašut | 3597840 | 2008-07-07 17:28:59 +0100 | [diff] [blame] | 44 | } |
| 45 | |
| 46 | static void palmtx_pcmcia_socket_state(struct soc_pcmcia_socket *skt, |
| 47 | struct pcmcia_state *state) |
| 48 | { |
| 49 | state->detect = 1; /* always inserted */ |
| 50 | state->ready = !!gpio_get_value(GPIO_NR_PALMTX_PCMCIA_READY); |
| 51 | state->bvd1 = 1; |
| 52 | state->bvd2 = 1; |
| 53 | state->wrprot = 0; |
| 54 | state->vs_3v = 1; |
| 55 | state->vs_Xv = 0; |
| 56 | } |
| 57 | |
| 58 | static int |
| 59 | palmtx_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, |
| 60 | const socket_state_t *state) |
| 61 | { |
| 62 | gpio_set_value(GPIO_NR_PALMTX_PCMCIA_POWER1, 1); |
| 63 | gpio_set_value(GPIO_NR_PALMTX_PCMCIA_POWER2, 1); |
| 64 | gpio_set_value(GPIO_NR_PALMTX_PCMCIA_RESET, |
| 65 | !!(state->flags & SS_RESET)); |
| 66 | |
| 67 | return 0; |
| 68 | } |
| 69 | |
| 70 | static void palmtx_pcmcia_socket_init(struct soc_pcmcia_socket *skt) |
| 71 | { |
| 72 | } |
| 73 | |
| 74 | static void palmtx_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt) |
| 75 | { |
| 76 | } |
| 77 | |
| 78 | static struct pcmcia_low_level palmtx_pcmcia_ops = { |
| 79 | .owner = THIS_MODULE, |
| 80 | |
| 81 | .first = 0, |
| 82 | .nr = 1, |
| 83 | |
| 84 | .hw_init = palmtx_pcmcia_hw_init, |
| 85 | .hw_shutdown = palmtx_pcmcia_hw_shutdown, |
| 86 | |
| 87 | .socket_state = palmtx_pcmcia_socket_state, |
| 88 | .configure_socket = palmtx_pcmcia_configure_socket, |
| 89 | |
| 90 | .socket_init = palmtx_pcmcia_socket_init, |
| 91 | .socket_suspend = palmtx_pcmcia_socket_suspend, |
| 92 | }; |
| 93 | |
| 94 | static struct platform_device *palmtx_pcmcia_device; |
| 95 | |
| 96 | static int __init palmtx_pcmcia_init(void) |
| 97 | { |
| 98 | int ret; |
| 99 | |
| 100 | if (!machine_is_palmtx()) |
| 101 | return -ENODEV; |
| 102 | |
| 103 | palmtx_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1); |
| 104 | if (!palmtx_pcmcia_device) |
| 105 | return -ENOMEM; |
| 106 | |
| 107 | ret = platform_device_add_data(palmtx_pcmcia_device, &palmtx_pcmcia_ops, |
| 108 | sizeof(palmtx_pcmcia_ops)); |
| 109 | |
| 110 | if (!ret) |
| 111 | ret = platform_device_add(palmtx_pcmcia_device); |
| 112 | |
| 113 | if (ret) |
| 114 | platform_device_put(palmtx_pcmcia_device); |
| 115 | |
| 116 | return ret; |
| 117 | } |
| 118 | |
| 119 | static void __exit palmtx_pcmcia_exit(void) |
| 120 | { |
| 121 | platform_device_unregister(palmtx_pcmcia_device); |
| 122 | } |
| 123 | |
Marek Vašut | 574047f | 2008-08-16 15:34:11 +0100 | [diff] [blame] | 124 | module_init(palmtx_pcmcia_init); |
Marek Vašut | 3597840 | 2008-07-07 17:28:59 +0100 | [diff] [blame] | 125 | module_exit(palmtx_pcmcia_exit); |
| 126 | |
| 127 | MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>"); |
| 128 | MODULE_DESCRIPTION("PCMCIA support for Palm T|X"); |
| 129 | MODULE_ALIAS("platform:pxa2xx-pcmcia"); |
| 130 | MODULE_LICENSE("GPL"); |