git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| 6d341675 MV |
1 | /* |
| 2 | * linux/drivers/pcmcia/pxa2xx_palmld.c | |
| 3 | * | |
| 4 | * Driver for Palm LifeDrive PCMCIA | |
| 5 | * | |
| 6 | * Copyright (C) 2006 Alex Osborne <ato@meshy.org> | |
| 7 | * Copyright (C) 2007-2008 Marek Vasut <marek.vasut@gmail.com> | |
| 8 | * | |
| 9 | * This program is free software; you can redistribute it and/or modify | |
| 10 | * it under the terms of the GNU General Public License version 2 as | |
| 11 | * published by the Free Software Foundation. | |
| 12 | * | |
| 13 | */ | |
| 14 | ||
| 15 | #include <linux/module.h> | |
| 16 | #include <linux/platform_device.h> | |
| 17 | #include <linux/gpio.h> | |
| 18 | ||
| 19 | #include <asm/mach-types.h> | |
| 20 | #include <mach/palmld.h> | |
| 21 | #include "soc_common.h" | |
| 22 | ||
| 23 | static int palmld_pcmcia_hw_init(struct soc_pcmcia_socket *skt) | |
| 24 | { | |
| 25 | int ret; | |
| 26 | ||
| 27 | ret = gpio_request(GPIO_NR_PALMLD_PCMCIA_POWER, "PCMCIA PWR"); | |
| 28 | if (ret) | |
| 29 | goto err1; | |
| 30 | ret = gpio_direction_output(GPIO_NR_PALMLD_PCMCIA_POWER, 0); | |
| 31 | if (ret) | |
| 32 | goto err2; | |
| 33 | ||
| 34 | ret = gpio_request(GPIO_NR_PALMLD_PCMCIA_RESET, "PCMCIA RST"); | |
| 35 | if (ret) | |
| 36 | goto err2; | |
| 37 | ret = gpio_direction_output(GPIO_NR_PALMLD_PCMCIA_RESET, 1); | |
| 38 | if (ret) | |
| 39 | goto err3; | |
| 40 | ||
| 41 | ret = gpio_request(GPIO_NR_PALMLD_PCMCIA_READY, "PCMCIA RDY"); | |
| 42 | if (ret) | |
| 43 | goto err3; | |
| 44 | ret = gpio_direction_input(GPIO_NR_PALMLD_PCMCIA_READY); | |
| 45 | if (ret) | |
| 46 | goto err4; | |
| 47 | ||
| 66024db5 | 48 | skt->socket.pci_irq = IRQ_GPIO(GPIO_NR_PALMLD_PCMCIA_READY); |
| 6d341675 MV |
49 | return 0; |
| 50 | ||
| 51 | err4: | |
| 52 | gpio_free(GPIO_NR_PALMLD_PCMCIA_READY); | |
| 53 | err3: | |
| 54 | gpio_free(GPIO_NR_PALMLD_PCMCIA_RESET); | |
| 55 | err2: | |
| 56 | gpio_free(GPIO_NR_PALMLD_PCMCIA_POWER); | |
| 57 | err1: | |
| 58 | return ret; | |
| 59 | } | |
| 60 | ||
| 61 | static void palmld_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) | |
| 62 | { | |
| 63 | gpio_free(GPIO_NR_PALMLD_PCMCIA_READY); | |
| 64 | gpio_free(GPIO_NR_PALMLD_PCMCIA_RESET); | |
| 65 | gpio_free(GPIO_NR_PALMLD_PCMCIA_POWER); | |
| 66 | } | |
| 67 | ||
| 68 | static void palmld_pcmcia_socket_state(struct soc_pcmcia_socket *skt, | |
| 69 | struct pcmcia_state *state) | |
| 70 | { | |
| 71 | state->detect = 1; /* always inserted */ | |
| 72 | state->ready = !!gpio_get_value(GPIO_NR_PALMLD_PCMCIA_READY); | |
| 73 | state->bvd1 = 1; | |
| 74 | state->bvd2 = 1; | |
| 75 | state->wrprot = 0; | |
| 76 | state->vs_3v = 1; | |
| 77 | state->vs_Xv = 0; | |
| 78 | } | |
| 79 | ||
| 80 | static int palmld_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, | |
| 81 | const socket_state_t *state) | |
| 82 | { | |
| 83 | gpio_set_value(GPIO_NR_PALMLD_PCMCIA_POWER, 1); | |
| 84 | gpio_set_value(GPIO_NR_PALMLD_PCMCIA_RESET, | |
| 85 | !!(state->flags & SS_RESET)); | |
| 86 | ||
| 87 | return 0; | |
| 88 | } | |
| 89 | ||
| 90 | static void palmld_pcmcia_socket_init(struct soc_pcmcia_socket *skt) | |
| 91 | { | |
| 92 | } | |
| 93 | ||
| 94 | static void palmld_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt) | |
| 95 | { | |
| 96 | } | |
| 97 | ||
| 98 | static struct pcmcia_low_level palmld_pcmcia_ops = { | |
| 99 | .owner = THIS_MODULE, | |
| 100 | ||
| d66ea8d4 MV |
101 | .first = 1, |
| 102 | .nr = 1, | |
| 6d341675 MV |
103 | |
| 104 | .hw_init = palmld_pcmcia_hw_init, | |
| 105 | .hw_shutdown = palmld_pcmcia_hw_shutdown, | |
| 106 | ||
| 107 | .socket_state = palmld_pcmcia_socket_state, | |
| 108 | .configure_socket = palmld_pcmcia_configure_socket, | |
| 109 | ||
| 110 | .socket_init = palmld_pcmcia_socket_init, | |
| 111 | .socket_suspend = palmld_pcmcia_socket_suspend, | |
| 112 | }; | |
| 113 | ||
| 114 | static struct platform_device *palmld_pcmcia_device; | |
| 115 | ||
| 116 | static int __init palmld_pcmcia_init(void) | |
| 117 | { | |
| 118 | int ret; | |
| 119 | ||
| 120 | if (!machine_is_palmld()) | |
| 121 | return -ENODEV; | |
| 122 | ||
| 123 | palmld_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1); | |
| 124 | if (!palmld_pcmcia_device) | |
| 125 | return -ENOMEM; | |
| 126 | ||
| 127 | ret = platform_device_add_data(palmld_pcmcia_device, &palmld_pcmcia_ops, | |
| 128 | sizeof(palmld_pcmcia_ops)); | |
| 129 | ||
| 130 | if (!ret) | |
| 131 | ret = platform_device_add(palmld_pcmcia_device); | |
| 132 | ||
| 133 | if (ret) | |
| 134 | platform_device_put(palmld_pcmcia_device); | |
| 135 | ||
| 136 | return ret; | |
| 137 | } | |
| 138 | ||
| 139 | static void __exit palmld_pcmcia_exit(void) | |
| 140 | { | |
| 141 | platform_device_unregister(palmld_pcmcia_device); | |
| 142 | } | |
| 143 | ||
| 144 | module_init(palmld_pcmcia_init); | |
| 145 | module_exit(palmld_pcmcia_exit); | |
| 146 | ||
| 147 | MODULE_AUTHOR("Alex Osborne <ato@meshy.org>," | |
| 148 | " Marek Vasut <marek.vasut@gmail.com>"); | |
| 149 | MODULE_DESCRIPTION("PCMCIA support for Palm LifeDrive"); | |
| 150 | MODULE_ALIAS("platform:pxa2xx-pcmcia"); | |
| 151 | MODULE_LICENSE("GPL"); |