2 * drivers/pcmcia/sa1100_h3600.c
4 * PCMCIA implementation routines for H3600
7 #include <linux/module.h>
8 #include <linux/kernel.h>
9 #include <linux/device.h>
10 #include <linux/interrupt.h>
11 #include <linux/init.h>
12 #include <linux/delay.h>
13 #include <linux/gpio.h>
15 #include <mach/hardware.h>
17 #include <asm/mach-types.h>
18 #include <mach/h3600.h>
19 #include <mach/h3600_gpio.h>
21 #include "sa1100_generic.h"
23 static struct pcmcia_irqs irqs[] = {
24 { .sock = 0, .str = "PCMCIA CD0" }, /* .irq will be filled later */
25 { .sock = 1, .str = "PCMCIA CD1" }
28 static int h3600_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
34 err = gpio_request(H3XXX_GPIO_PCMCIA_IRQ0, "PCMCIA IRQ0");
37 err = gpio_direction_input(H3XXX_GPIO_PCMCIA_IRQ0);
40 skt->socket.pci_irq = gpio_to_irq(H3XXX_GPIO_PCMCIA_IRQ0);
42 err = gpio_request(H3XXX_GPIO_PCMCIA_CD0, "PCMCIA CD0");
45 err = gpio_direction_input(H3XXX_GPIO_PCMCIA_CD0);
48 irqs[0].irq = gpio_to_irq(H3XXX_GPIO_PCMCIA_CD0);
50 err = soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs));
55 err = gpio_request(H3XXX_GPIO_PCMCIA_IRQ1, "PCMCIA IRQ1");
58 err = gpio_direction_input(H3XXX_GPIO_PCMCIA_IRQ1);
61 skt->socket.pci_irq = gpio_to_irq(H3XXX_GPIO_PCMCIA_IRQ1);
63 err = gpio_request(H3XXX_GPIO_PCMCIA_CD1, "PCMCIA CD1");
66 err = gpio_direction_input(H3XXX_GPIO_PCMCIA_CD1);
69 irqs[1].irq = gpio_to_irq(H3XXX_GPIO_PCMCIA_CD1);
71 err = soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs));
78 err02: gpio_free(H3XXX_GPIO_PCMCIA_CD0);
79 err01: gpio_free(H3XXX_GPIO_PCMCIA_IRQ0);
82 err12: gpio_free(H3XXX_GPIO_PCMCIA_CD0);
83 err11: gpio_free(H3XXX_GPIO_PCMCIA_IRQ0);
87 static void h3600_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
89 soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs));
92 assign_h3600_egpio(IPAQ_EGPIO_OPT_NVRAM_ON, 0);
93 assign_h3600_egpio(IPAQ_EGPIO_OPT_ON, 0);
94 assign_h3600_egpio(IPAQ_EGPIO_OPT_RESET, 1);
97 gpio_free(H3XXX_GPIO_PCMCIA_CD0);
98 gpio_free(H3XXX_GPIO_PCMCIA_IRQ0);
101 gpio_free(H3XXX_GPIO_PCMCIA_CD1);
102 gpio_free(H3XXX_GPIO_PCMCIA_IRQ1);
108 h3600_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state)
112 state->detect = !gpio_get_value(H3XXX_GPIO_PCMCIA_CD0);
113 state->ready = !!gpio_get_value(H3XXX_GPIO_PCMCIA_IRQ0);
116 state->wrprot = 0; /* Not available on H3600. */
122 state->detect = !gpio_get_value(H3XXX_GPIO_PCMCIA_CD1);
123 state->ready = !!gpio_get_value(H3XXX_GPIO_PCMCIA_IRQ1);
126 state->wrprot = 0; /* Not available on H3600. */
134 h3600_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
136 if (state->Vcc != 0 && state->Vcc != 33 && state->Vcc != 50) {
137 printk(KERN_ERR "h3600_pcmcia: unrecognized Vcc %u.%uV\n",
138 state->Vcc / 10, state->Vcc % 10);
142 assign_h3600_egpio(IPAQ_EGPIO_CARD_RESET, !!(state->flags & SS_RESET));
144 /* Silently ignore Vpp, output enable, speaker enable. */
149 static void h3600_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
152 assign_h3600_egpio(IPAQ_EGPIO_OPT_NVRAM_ON, 1);
153 assign_h3600_egpio(IPAQ_EGPIO_OPT_ON, 1);
154 assign_h3600_egpio(IPAQ_EGPIO_OPT_RESET, 0);
158 soc_pcmcia_enable_irqs(skt, irqs, ARRAY_SIZE(irqs));
161 static void h3600_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
163 soc_pcmcia_disable_irqs(skt, irqs, ARRAY_SIZE(irqs));
166 * FIXME: This doesn't fit well. We don't have the mechanism in
167 * the generic PCMCIA layer to deal with the idea of two sockets
168 * on one bus. We rely on the cs.c behaviour shutting down
169 * socket 0 then socket 1.
172 assign_h3600_egpio(IPAQ_EGPIO_OPT_ON, 0);
173 assign_h3600_egpio(IPAQ_EGPIO_OPT_NVRAM_ON, 0);
174 /* hmm, does this suck power? */
175 assign_h3600_egpio(IPAQ_EGPIO_OPT_RESET, 1);
179 struct pcmcia_low_level h3600_pcmcia_ops = {
180 .owner = THIS_MODULE,
181 .hw_init = h3600_pcmcia_hw_init,
182 .hw_shutdown = h3600_pcmcia_hw_shutdown,
183 .socket_state = h3600_pcmcia_socket_state,
184 .configure_socket = h3600_pcmcia_configure_socket,
186 .socket_init = h3600_pcmcia_socket_init,
187 .socket_suspend = h3600_pcmcia_socket_suspend,
190 int __init pcmcia_h3600_init(struct device *dev)
194 if (machine_is_h3600())
195 ret = sa11xx_drv_pcmcia_probe(dev, &h3600_pcmcia_ops, 0, 2);