2 * drivers/pcmcia/sa1100_h3600.c
4 * PCMCIA implementation routines for H3600
7 #include <linux/kernel.h>
8 #include <linux/sched.h>
10 #include <asm/hardware.h>
12 #include "sa1100_generic.h"
18 { IRQ_GPIO_H3600_PCMCIA_CD0, "PCMCIA CD0" },
19 { IRQ_GPIO_H3600_PCMCIA_CD1, "PCMCIA CD1" }
22 static int h3600_pcmcia_init(struct pcmcia_init *init)
27 * Set transition detect
29 set_GPIO_IRQ_edge(GPIO_H3600_PCMCIA_IRQ0 | GPIO_H3600_PCMCIA_IRQ1,
35 for (i = res = 0; i < ARRAY_SIZE(irqs); i++) {
36 res = request_irq(irqs[i].irq, init->handler, SA_INTERRUPT,
43 printk(KERN_ERR "h3600_pcmcia: request for IRQ%d failed: %d\n",
47 free_irq(irqs[i].irq, NULL);
53 static int h3600_pcmcia_shutdown(void)
60 for (i = 0; i < ARRAY_SIZE(irqs); i++)
61 free_irq(irqs[i].irq, NULL);
64 clr_h3600_egpio(IPAQ_EGPIO_OPT_NVRAM_ON);
65 clr_h3600_egpio(IPAQ_EGPIO_OPT_ON);
66 set_h3600_egpio(IPAQ_EGPIO_OPT_RESET);
72 h3600_pcmcia_socket_state(struct pcmcia_state_array *state)
81 state->state[0].detect = levels & GPIO_H3600_PCMCIA_CD0 ? 0 : 1;
82 state->state[0].ready = levels & GPIO_H3600_PCMCIA_IRQ0 ? 1 : 0;
83 state->state[0].bvd1 = 0;
84 state->state[0].bvd2 = 0;
85 state->state[0].wrprot = 0; /* Not available on H3600. */
86 state->state[0].vs_3v = 0;
87 state->state[0].vs_Xv = 0;
89 state->state[1].detect = levels & GPIO_H3600_PCMCIA_CD1 ? 0 : 1;
90 state->state[1].ready = levels & GPIO_H3600_PCMCIA_IRQ1 ? 1 : 0;
91 state->state[1].bvd1 = 0;
92 state->state[1].bvd2 = 0;
93 state->state[1].wrprot = 0; /* Not available on H3600. */
94 state->state[1].vs_3v = 0;
95 state->state[1].vs_Xv = 0;
100 static int h3600_pcmcia_get_irq_info(struct pcmcia_irq_info *info)
102 switch (info->sock) {
104 info->irq = IRQ_GPIO_H3600_PCMCIA_IRQ0;
107 info->irq = IRQ_GPIO_H3600_PCMCIA_IRQ1;
116 h3600_pcmcia_configure_socket(const struct pcmcia_configure *conf)
121 if (conf->vcc != 0 && conf->vcc != 33 && conf->vcc != 50) {
122 printk(KERN_ERR "h3600_pcmcia: unrecognized Vcc %u.%uV\n",
123 conf->vcc / 10, conf->vcc % 10);
128 set_h3600_egpio(IPAQ_EGPIO_CARD_RESET);
130 clr_h3600_egpio(IPAQ_EGPIO_CARD_RESET);
132 /* Silently ignore Vpp, output enable, speaker enable. */
137 static int h3600_pcmcia_socket_init(int sock)
140 set_h3600_egpio(IPAQ_EGPIO_OPT_NVRAM_ON);
141 set_h3600_egpio(IPAQ_EGPIO_OPT_ON);
142 clr_h3600_egpio(IPAQ_EGPIO_OPT_RESET);
144 set_current_state(TASK_UNINTERRUPTIBLE);
145 schedule_timeout(10*HZ / 1000);
149 set_GPIO_IRQ_edge(GPIO_H3600_PCMCIA_CD0, GPIO_BOTH_EDGES);
152 set_GPIO_IRQ_edge(GPIO_H3600_PCMCIA_CD1, GPIO_BOTH_EDGES);
159 static int h3600_pcmcia_socket_suspend(int sock)
163 set_GPIO_IRQ_edge(GPIO_H3600_PCMCIA_CD0, GPIO_NO_EDGES);
166 set_GPIO_IRQ_edge(GPIO_H3600_PCMCIA_CD1, GPIO_NO_EDGES);
171 * FIXME: This doesn't fit well. We don't have the mechanism in
172 * the generic PCMCIA layer to deal with the idea of two sockets
173 * on one bus. We rely on the cs.c behaviour shutting down
174 * socket 0 then socket 1.
177 clr_h3600_egpio(IPAQ_EGPIO_OPT_ON);
178 clr_h3600_egpio(IPAQ_EGPIO_OPT_NVRAM_ON);
179 /* hmm, does this suck power? */
180 set_h3600_egpio(IPAQ_EGPIO_OPT_RESET);
186 struct pcmcia_low_level h3600_pcmcia_ops = {
187 init: h3600_pcmcia_init,
188 shutdown: h3600_pcmcia_shutdown,
189 socket_state: h3600_pcmcia_socket_state,
190 get_irq_info: h3600_pcmcia_get_irq_info,
191 configure_socket: h3600_pcmcia_configure_socket,
193 socket_init: h3600_pcmcia_socket_init,
194 socket_suspend: h3600_pcmcia_socket_suspend,