--- /dev/null
+/*
+ * linux/drivers/pcmcia/pxa2xx_vpac270.c
+ *
+ * Driver for Voipac PXA270 PCMCIA and CF sockets
+ *
+ * Copyright (C) 2010
+ * 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 <asm/mach-types.h>
+
+#include <mach/gpio.h>
+#include <mach/vpac270.h>
+
+#include "soc_common.h"
+
+static struct pcmcia_irqs cd_irqs[] = {
+ {
+ .sock = 0,
+ .irq = IRQ_GPIO(GPIO84_VPAC270_PCMCIA_CD),
+ .str = "PCMCIA CD"
+ },
+ {
+ .sock = 1,
+ .irq = IRQ_GPIO(GPIO17_VPAC270_CF_CD),
+ .str = "CF CD"
+ },
+};
+
+static int vpac270_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
+{
+ int ret;
+
+ if (skt->nr == 0) {
+ ret = gpio_request(GPIO84_VPAC270_PCMCIA_CD, "PCMCIA CD");
+ if (ret)
+ goto err1;
+ ret = gpio_direction_input(GPIO84_VPAC270_PCMCIA_CD);
+ if (ret)
+ goto err2;
+
+ ret = gpio_request(GPIO35_VPAC270_PCMCIA_RDY, "PCMCIA RDY");
+ if (ret)
+ goto err2;
+ ret = gpio_direction_input(GPIO35_VPAC270_PCMCIA_RDY);
+ if (ret)
+ goto err3;
+
+ ret = gpio_request(GPIO107_VPAC270_PCMCIA_PPEN, "PCMCIA PPEN");
+ if (ret)
+ goto err3;
+ ret = gpio_direction_output(GPIO107_VPAC270_PCMCIA_PPEN, 0);
+ if (ret)
+ goto err4;
+
+ ret = gpio_request(GPIO11_VPAC270_PCMCIA_RESET, "PCMCIA RESET");
+ if (ret)
+ goto err4;
+ ret = gpio_direction_output(GPIO11_VPAC270_PCMCIA_RESET, 0);
+ if (ret)
+ goto err5;
+
+ skt->socket.pci_irq = gpio_to_irq(GPIO35_VPAC270_PCMCIA_RDY);
+
+ return soc_pcmcia_request_irqs(skt, &cd_irqs[0], 1);
+
+err5:
+ gpio_free(GPIO11_VPAC270_PCMCIA_RESET);
+err4:
+ gpio_free(GPIO107_VPAC270_PCMCIA_PPEN);
+err3:
+ gpio_free(GPIO35_VPAC270_PCMCIA_RDY);
+err2:
+ gpio_free(GPIO84_VPAC270_PCMCIA_CD);
+err1:
+ return ret;
+
+ } else {
+ ret = gpio_request(GPIO17_VPAC270_CF_CD, "CF CD");
+ if (ret)
+ goto err6;
+ ret = gpio_direction_input(GPIO17_VPAC270_CF_CD);
+ if (ret)
+ goto err7;
+
+ ret = gpio_request(GPIO12_VPAC270_CF_RDY, "CF RDY");
+ if (ret)
+ goto err7;
+ ret = gpio_direction_input(GPIO12_VPAC270_CF_RDY);
+ if (ret)
+ goto err8;
+
+ ret = gpio_request(GPIO16_VPAC270_CF_RESET, "CF RESET");
+ if (ret)
+ goto err8;
+ ret = gpio_direction_output(GPIO16_VPAC270_CF_RESET, 0);
+ if (ret)
+ goto err9;
+
+ skt->socket.pci_irq = gpio_to_irq(GPIO12_VPAC270_CF_RDY);
+
+ return soc_pcmcia_request_irqs(skt, &cd_irqs[1], 1);
+
+err9:
+ gpio_free(GPIO16_VPAC270_CF_RESET);
+err8:
+ gpio_free(GPIO12_VPAC270_CF_RDY);
+err7:
+ gpio_free(GPIO17_VPAC270_CF_CD);
+err6:
+ return ret;
+
+ }
+}
+
+static void vpac270_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
+{
+ gpio_free(GPIO11_VPAC270_PCMCIA_RESET);
+ gpio_free(GPIO107_VPAC270_PCMCIA_PPEN);
+ gpio_free(GPIO35_VPAC270_PCMCIA_RDY);
+ gpio_free(GPIO84_VPAC270_PCMCIA_CD);
+ gpio_free(GPIO16_VPAC270_CF_RESET);
+ gpio_free(GPIO12_VPAC270_CF_RDY);
+ gpio_free(GPIO17_VPAC270_CF_CD);
+}
+
+static void vpac270_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
+ struct pcmcia_state *state)
+{
+ if (skt->nr == 0) {
+ state->detect = !gpio_get_value(GPIO84_VPAC270_PCMCIA_CD);
+ state->ready = !!gpio_get_value(GPIO35_VPAC270_PCMCIA_RDY);
+ } else {
+ state->detect = !gpio_get_value(GPIO17_VPAC270_CF_CD);
+ state->ready = !!gpio_get_value(GPIO12_VPAC270_CF_RDY);
+ }
+ state->bvd1 = 1;
+ state->bvd2 = 1;
+ state->wrprot = 0;
+ state->vs_3v = 1;
+ state->vs_Xv = 0;
+}
+
+static int
+vpac270_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
+ const socket_state_t *state)
+{
+ if (skt->nr == 0) {
+ gpio_set_value(GPIO11_VPAC270_PCMCIA_RESET,
+ (state->flags & SS_RESET));
+ gpio_set_value(GPIO107_VPAC270_PCMCIA_PPEN,
+ !(state->Vcc == 33 || state->Vcc == 50));
+ } else {
+ gpio_set_value(GPIO16_VPAC270_CF_RESET,
+ (state->flags & SS_RESET));
+ }
+
+ return 0;
+}
+
+static void vpac270_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
+{
+}
+
+static void vpac270_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
+{
+}
+
+static struct pcmcia_low_level vpac270_pcmcia_ops = {
+ .owner = THIS_MODULE,
+
+ .first = 0,
+ .nr = 2,
+
+ .hw_init = vpac270_pcmcia_hw_init,
+ .hw_shutdown = vpac270_pcmcia_hw_shutdown,
+
+ .socket_state = vpac270_pcmcia_socket_state,
+ .configure_socket = vpac270_pcmcia_configure_socket,
+
+ .socket_init = vpac270_pcmcia_socket_init,
+ .socket_suspend = vpac270_pcmcia_socket_suspend,
+};
+
+static struct platform_device *vpac270_pcmcia_device;
+
+static int __init vpac270_pcmcia_init(void)
+{
+ int ret;
+
+ if (!machine_is_vpac270())
+ return -ENODEV;
+
+ vpac270_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
+ if (!vpac270_pcmcia_device)
+ return -ENOMEM;
+
+ ret = platform_device_add_data(vpac270_pcmcia_device,
+ &vpac270_pcmcia_ops, sizeof(vpac270_pcmcia_ops));
+
+ if (!ret)
+ ret = platform_device_add(vpac270_pcmcia_device);
+
+ if (ret)
+ platform_device_put(vpac270_pcmcia_device);
+
+ return ret;
+}
+
+static void __exit vpac270_pcmcia_exit(void)
+{
+ platform_device_unregister(vpac270_pcmcia_device);
+}
+
+module_init(vpac270_pcmcia_init);
+module_exit(vpac270_pcmcia_exit);
+
+MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
+MODULE_DESCRIPTION("PCMCIA support for Voipac PXA270");
+MODULE_ALIAS("platform:pxa2xx-pcmcia");
+MODULE_LICENSE("GPL");
git.samba.org / sfrench / cifs-2.6.git / blobdiff