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Release 4.11 drivers/pcmcia/pxa2xx_hx4700.c

Directory: drivers/pcmcia
/*
 *  Copyright (C) 2012 Paul Parsons <lost.distance@yahoo.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/err.h>
#include <linux/gpio.h>
#include <linux/irq.h>

#include <asm/mach-types.h>
#include <mach/hx4700.h>

#include "soc_common.h"


static struct gpio gpios[] = {
	{ GPIO114_HX4700_CF_RESET,    GPIOF_OUT_INIT_LOW,   "CF reset"        },
	{ EGPIO4_CF_3V3_ON,           GPIOF_OUT_INIT_LOW,   "CF 3.3V enable"  },
};


static int hx4700_pcmcia_hw_init(struct soc_pcmcia_socket *skt) { int ret; ret = gpio_request_array(gpios, ARRAY_SIZE(gpios)); if (ret) goto out; /* * IRQ type must be set before soc_pcmcia_hw_init() calls request_irq(). * The asic3 default IRQ type is level trigger low level detect, exactly * the the signal present on GPIOD4_CF_nCD when a CF card is inserted. * If the IRQ type is not changed, the asic3 interrupt handler will loop * repeatedly because it is unable to clear the level trigger interrupt. */ irq_set_irq_type(gpio_to_irq(GPIOD4_CF_nCD), IRQ_TYPE_EDGE_BOTH); skt->stat[SOC_STAT_CD].gpio = GPIOD4_CF_nCD; skt->stat[SOC_STAT_CD].name = "PCMCIA CD"; skt->stat[SOC_STAT_RDY].gpio = GPIO60_HX4700_CF_RNB; skt->stat[SOC_STAT_RDY].name = "PCMCIA Ready"; out: return ret; }

Contributors

PersonTokensPropCommitsCommitProp
Paul Parsons93100.00%1100.00%
Total93100.00%1100.00%


static void hx4700_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) { gpio_free_array(gpios, ARRAY_SIZE(gpios)); }

Contributors

PersonTokensPropCommitsCommitProp
Paul Parsons21100.00%1100.00%
Total21100.00%1100.00%


static void hx4700_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state) { state->vs_3v = 1; state->vs_Xv = 0; }

Contributors

PersonTokensPropCommitsCommitProp
Paul Parsons28100.00%1100.00%
Total28100.00%1100.00%


static int hx4700_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state) { switch (state->Vcc) { case 0: gpio_set_value(EGPIO4_CF_3V3_ON, 0); break; case 33: gpio_set_value(EGPIO4_CF_3V3_ON, 1); break; default: printk(KERN_ERR "pcmcia: Unsupported Vcc: %d\n", state->Vcc); return -EINVAL; } gpio_set_value(GPIO114_HX4700_CF_RESET, (state->flags & SS_RESET) != 0); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Paul Parsons79100.00%1100.00%
Total79100.00%1100.00%

static struct pcmcia_low_level hx4700_pcmcia_ops = { .owner = THIS_MODULE, .nr = 1, .hw_init = hx4700_pcmcia_hw_init, .hw_shutdown = hx4700_pcmcia_hw_shutdown, .socket_state = hx4700_pcmcia_socket_state, .configure_socket = hx4700_pcmcia_configure_socket, }; static struct platform_device *hx4700_pcmcia_device;
static int __init hx4700_pcmcia_init(void) { struct platform_device *pdev; if (!machine_is_h4700()) return -ENODEV; pdev = platform_device_register_data(NULL, "pxa2xx-pcmcia", -1, &hx4700_pcmcia_ops, sizeof(hx4700_pcmcia_ops)); if (IS_ERR(pdev)) return PTR_ERR(pdev); hx4700_pcmcia_device = pdev; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Paul Parsons64100.00%1100.00%
Total64100.00%1100.00%


static void __exit hx4700_pcmcia_exit(void) { platform_device_unregister(hx4700_pcmcia_device); }

Contributors

PersonTokensPropCommitsCommitProp
Paul Parsons14100.00%1100.00%
Total14100.00%1100.00%

module_init(hx4700_pcmcia_init); module_exit(hx4700_pcmcia_exit); MODULE_AUTHOR("Paul Parsons <lost.distance@yahoo.com>"); MODULE_DESCRIPTION("HP iPAQ hx4700 PCMCIA driver"); MODULE_LICENSE("GPL");

Overall Contributors

PersonTokensPropCommitsCommitProp
Paul Parsons416100.00%1100.00%
Total416100.00%1100.00%
Directory: drivers/pcmcia
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