/* * linux/drivers/pcmcia/pxa2xx_palmtx.c * * Driver for Palm T|X PCMCIA * * Copyright (C) 2007-2011 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 <linux/gpio.h> #include <asm/mach-types.h> #include <mach/palmtx.h> #include "soc_common.h" static struct gpio palmtx_pcmcia_gpios[] = { { GPIO_NR_PALMTX_PCMCIA_POWER1, GPIOF_INIT_LOW, "PCMCIA Power 1" }, { GPIO_NR_PALMTX_PCMCIA_POWER2, GPIOF_INIT_LOW, "PCMCIA Power 2" }, { GPIO_NR_PALMTX_PCMCIA_RESET, GPIOF_INIT_HIGH,"PCMCIA Reset" }, { GPIO_NR_PALMTX_PCMCIA_READY, GPIOF_IN, "PCMCIA Ready" }, }; static int palmtx_pcmcia_hw_init(struct soc_pcmcia_socket *skt) { int ret; ret = gpio_request_array(palmtx_pcmcia_gpios, ARRAY_SIZE(palmtx_pcmcia_gpios)); skt->socket.pci_irq = gpio_to_irq(GPIO_NR_PALMTX_PCMCIA_READY); return ret; } static void palmtx_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) { gpio_free_array(palmtx_pcmcia_gpios, ARRAY_SIZE(palmtx_pcmcia_gpios)); } 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); } module_init(palmtx_pcmcia_init); 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");