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yaml --- r: 112455 b: refs/heads/master c: 20f18ff h: refs/heads/master i: 112453: 8bf716c 112451: 10ba2f7 112447: 996fb84 v: v3
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Marc Zyngier
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Marc Zyngier
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Sep 9, 2008
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| Original file line number | Diff line number | Diff line change |
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| @@ -1,2 +1,2 @@ | ||
| --- | ||
| refs/heads/master: 175ff20f6a681effa82d67e3656c4cc3e7117600 | ||
| refs/heads/master: 20f18ff32fe311f60770ac70395b01c06758923b |
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| Original file line number | Diff line number | Diff line change |
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| /* | ||
| * VIPER PCMCIA support | ||
| * Copyright 2004 Arcom Control Systems | ||
| * | ||
| * Maintained by Marc Zyngier <maz@misterjones.org> | ||
| * <marc.zyngier@altran.com> | ||
| * | ||
| * Based on: | ||
| * iPAQ h2200 PCMCIA support | ||
| * Copyright 2004 Koen Kooi <koen@vestingbar.nl> | ||
| * | ||
| * This file is subject to the terms and conditions of the GNU General Public | ||
| * License. See the file COPYING in the main directory of this archive for | ||
| * more details. | ||
| */ | ||
|
|
||
| #include <linux/module.h> | ||
| #include <linux/init.h> | ||
| #include <linux/kernel.h> | ||
| #include <linux/errno.h> | ||
| #include <linux/interrupt.h> | ||
| #include <linux/platform_device.h> | ||
| #include <linux/gpio.h> | ||
|
|
||
| #include <pcmcia/ss.h> | ||
|
|
||
| #include <asm/irq.h> | ||
|
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||
| #include <mach/pxa-regs.h> | ||
| #include <mach/viper.h> | ||
| #include <asm/mach-types.h> | ||
|
|
||
| #include "soc_common.h" | ||
| #include "pxa2xx_base.h" | ||
|
|
||
| static struct pcmcia_irqs irqs[] = { | ||
| { 0, gpio_to_irq(VIPER_CF_CD_GPIO), "PCMCIA_CD" } | ||
| }; | ||
|
|
||
| static int viper_pcmcia_hw_init(struct soc_pcmcia_socket *skt) | ||
| { | ||
| unsigned long flags; | ||
|
|
||
| skt->irq = gpio_to_irq(VIPER_CF_RDY_GPIO); | ||
|
|
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| if (gpio_request(VIPER_CF_CD_GPIO, "CF detect")) | ||
| goto err_request_cd; | ||
|
|
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| if (gpio_request(VIPER_CF_RDY_GPIO, "CF ready")) | ||
| goto err_request_rdy; | ||
|
|
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| if (gpio_request(VIPER_CF_POWER_GPIO, "CF power")) | ||
| goto err_request_pwr; | ||
|
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| local_irq_save(flags); | ||
|
|
||
| /* GPIO 82 is the CF power enable line. initially off */ | ||
| if (gpio_direction_output(VIPER_CF_POWER_GPIO, 0) || | ||
| gpio_direction_input(VIPER_CF_CD_GPIO) || | ||
| gpio_direction_input(VIPER_CF_RDY_GPIO)) { | ||
| local_irq_restore(flags); | ||
| goto err_dir; | ||
| } | ||
|
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| local_irq_restore(flags); | ||
|
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| return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs)); | ||
|
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| err_dir: | ||
| gpio_free(VIPER_CF_POWER_GPIO); | ||
| err_request_pwr: | ||
| gpio_free(VIPER_CF_RDY_GPIO); | ||
| err_request_rdy: | ||
| gpio_free(VIPER_CF_CD_GPIO); | ||
| err_request_cd: | ||
| printk(KERN_ERR "viper: Failed to setup PCMCIA GPIOs\n"); | ||
| return -1; | ||
| } | ||
|
|
||
| /* | ||
| * Release all resources. | ||
| */ | ||
| static void viper_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) | ||
| { | ||
| soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs)); | ||
| gpio_free(VIPER_CF_POWER_GPIO); | ||
| gpio_free(VIPER_CF_RDY_GPIO); | ||
| gpio_free(VIPER_CF_CD_GPIO); | ||
| } | ||
|
|
||
| static void viper_pcmcia_socket_state(struct soc_pcmcia_socket *skt, | ||
| struct pcmcia_state *state) | ||
| { | ||
| state->detect = gpio_get_value(VIPER_CF_CD_GPIO) ? 0 : 1; | ||
| state->ready = gpio_get_value(VIPER_CF_RDY_GPIO) ? 1 : 0; | ||
| state->bvd1 = 1; | ||
| state->bvd2 = 1; | ||
| state->wrprot = 0; | ||
| state->vs_3v = 1; /* Can only apply 3.3V */ | ||
| state->vs_Xv = 0; | ||
| } | ||
|
|
||
| static int viper_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, | ||
| const socket_state_t *state) | ||
| { | ||
| /* Silently ignore Vpp, output enable, speaker enable. */ | ||
| viper_cf_rst(state->flags & SS_RESET); | ||
|
|
||
| /* Apply socket voltage */ | ||
| switch (state->Vcc) { | ||
| case 0: | ||
| gpio_set_value(VIPER_CF_POWER_GPIO, 0); | ||
| break; | ||
| case 33: | ||
| gpio_set_value(VIPER_CF_POWER_GPIO, 1); | ||
| break; | ||
| default: | ||
| printk(KERN_ERR "%s: Unsupported Vcc:%d\n", | ||
| __func__, state->Vcc); | ||
| return -1; | ||
| } | ||
|
|
||
| return 0; | ||
| } | ||
|
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| static void viper_pcmcia_socket_init(struct soc_pcmcia_socket *skt) | ||
| { | ||
| } | ||
|
|
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| static void viper_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt) | ||
| { | ||
| } | ||
|
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| static struct pcmcia_low_level viper_pcmcia_ops __initdata = { | ||
| .owner = THIS_MODULE, | ||
| .hw_init = viper_pcmcia_hw_init, | ||
| .hw_shutdown = viper_pcmcia_hw_shutdown, | ||
| .socket_state = viper_pcmcia_socket_state, | ||
| .configure_socket = viper_pcmcia_configure_socket, | ||
| .socket_init = viper_pcmcia_socket_init, | ||
| .socket_suspend = viper_pcmcia_socket_suspend, | ||
| .nr = 1, | ||
| }; | ||
|
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| static struct platform_device *viper_pcmcia_device; | ||
|
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| static int __init viper_pcmcia_init(void) | ||
| { | ||
| int ret; | ||
|
|
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| if (!machine_is_viper()) | ||
| return -ENODEV; | ||
|
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| viper_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1); | ||
| if (!viper_pcmcia_device) | ||
| return -ENOMEM; | ||
|
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| ret = platform_device_add_data(viper_pcmcia_device, | ||
| &viper_pcmcia_ops, | ||
| sizeof(viper_pcmcia_ops)); | ||
|
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| if (!ret) | ||
| ret = platform_device_add(viper_pcmcia_device); | ||
|
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| if (ret) | ||
| platform_device_put(viper_pcmcia_device); | ||
|
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| return ret; | ||
| } | ||
|
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| static void __exit viper_pcmcia_exit(void) | ||
| { | ||
| platform_device_unregister(viper_pcmcia_device); | ||
| } | ||
|
|
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| module_init(viper_pcmcia_init); | ||
| module_exit(viper_pcmcia_exit); | ||
|
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||
| MODULE_LICENSE("GPL"); |