/* * linux/drivers/pcmcia/pxa2xx_palmld.c * * Driver for Palm LifeDrive PCMCIA * * Copyright (C) 2006 Alex Osborne <ato@meshy.org> * 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 <linux/gpio.h> #include <asm/mach-types.h> #include <mach/palmld.h> #include "soc_common.h" static int palmld_pcmcia_hw_init(struct soc_pcmcia_socket *skt) { int ret; ret = gpio_request(GPIO_NR_PALMLD_PCMCIA_POWER, "PCMCIA PWR"); if (ret) goto err1; ret = gpio_direction_output(GPIO_NR_PALMLD_PCMCIA_POWER, 0); if (ret) goto err2; ret = gpio_request(GPIO_NR_PALMLD_PCMCIA_RESET, "PCMCIA RST"); if (ret) goto err2; ret = gpio_direction_output(GPIO_NR_PALMLD_PCMCIA_RESET, 1); if (ret) goto err3; ret = gpio_request(GPIO_NR_PALMLD_PCMCIA_READY, "PCMCIA RDY"); if (ret) goto err3; ret = gpio_direction_input(GPIO_NR_PALMLD_PCMCIA_READY); if (ret) goto err4; skt->irq = IRQ_GPIO(GPIO_NR_PALMLD_PCMCIA_READY); return 0; err4: gpio_free(GPIO_NR_PALMLD_PCMCIA_READY); err3: gpio_free(GPIO_NR_PALMLD_PCMCIA_RESET); err2: gpio_free(GPIO_NR_PALMLD_PCMCIA_POWER); err1: return ret; } static void palmld_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) { gpio_free(GPIO_NR_PALMLD_PCMCIA_READY); gpio_free(GPIO_NR_PALMLD_PCMCIA_RESET); gpio_free(GPIO_NR_PALMLD_PCMCIA_POWER); } static void palmld_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state) { state->detect = 1; /* always inserted */ state->ready = !!gpio_get_value(GPIO_NR_PALMLD_PCMCIA_READY); state->bvd1 = 1; state->bvd2 = 1; state->wrprot = 0; state->vs_3v = 1; state->vs_Xv = 0; } static int palmld_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state) { gpio_set_value(GPIO_NR_PALMLD_PCMCIA_POWER, 1); gpio_set_value(GPIO_NR_PALMLD_PCMCIA_RESET, !!(state->flags & SS_RESET)); return 0; } static void palmld_pcmcia_socket_init(struct soc_pcmcia_socket *skt) { } static void palmld_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt) { } static struct pcmcia_low_level palmld_pcmcia_ops = { .owner = THIS_MODULE, .first = 1, .nr = 1, .hw_init = palmld_pcmcia_hw_init, .hw_shutdown = palmld_pcmcia_hw_shutdown, .socket_state = palmld_pcmcia_socket_state, .configure_socket = palmld_pcmcia_configure_socket, .socket_init = palmld_pcmcia_socket_init, .socket_suspend = palmld_pcmcia_socket_suspend, }; static struct platform_device *palmld_pcmcia_device; static int __init palmld_pcmcia_init(void) { int ret; if (!machine_is_palmld()) return -ENODEV; palmld_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1); if (!palmld_pcmcia_device) return -ENOMEM; ret = platform_device_add_data(palmld_pcmcia_device, &palmld_pcmcia_ops, sizeof(palmld_pcmcia_ops)); if (!ret) ret = platform_device_add(palmld_pcmcia_device); if (ret) platform_device_put(palmld_pcmcia_device); return ret; } static void __exit palmld_pcmcia_exit(void) { platform_device_unregister(palmld_pcmcia_device); } module_init(palmld_pcmcia_init); module_exit(palmld_pcmcia_exit); MODULE_AUTHOR("Alex Osborne <ato@meshy.org>," " Marek Vasut <marek.vasut@gmail.com>"); MODULE_DESCRIPTION("PCMCIA support for Palm LifeDrive"); MODULE_ALIAS("platform:pxa2xx-pcmcia"); MODULE_LICENSE("GPL");