2 * drivers/pcmcia/sa1100_pangolin.c
4 * PCMCIA implementation routines for Pangolin
7 #include <linux/kernel.h>
8 #include <linux/sched.h>
10 #include <asm/hardware.h>
12 #include "sa1100_generic.h"
14 static int pangolin_pcmcia_init(struct pcmcia_init *init){
17 #ifndef CONFIG_SA1100_PANGOLIN_PCMCIA_IDE
18 /* Enable PCMCIA bus: */
19 GPCR = GPIO_PCMCIA_BUS_ON;
22 /* Set transition detect */
23 set_GPIO_IRQ_edge( GPIO_PCMCIA_CD, GPIO_BOTH_EDGES );
24 set_GPIO_IRQ_edge( GPIO_PCMCIA_IRQ, GPIO_FALLING_EDGE );
26 /* Register interrupts */
28 res = request_irq( irq, init->handler, SA_INTERRUPT, "PCMCIA_CD", NULL );
29 if( res < 0 ) goto irq_err;
31 /* There's only one slot, but it's "Slot 1": */
35 printk( KERN_ERR "%s: Request for IRQ %lu failed\n", __FUNCTION__, irq );
39 static int pangolin_pcmcia_shutdown(void)
42 free_irq( IRQ_PCMCIA_CD, NULL );
43 #ifndef CONFIG_SA1100_PANGOLIN_PCMCIA_IDE
44 /* Disable PCMCIA bus: */
45 GPSR = GPIO_PCMCIA_BUS_ON;
50 static int pangolin_pcmcia_socket_state(struct pcmcia_state_array
54 if(state_array->size<2) return -1;
56 memset(state_array->state, 0,
57 (state_array->size)*sizeof(struct pcmcia_state));
60 #ifndef CONFIG_SA1100_PANGOLIN_PCMCIA_IDE
61 state_array->state[1].detect=((levels & GPIO_PCMCIA_CD)==0)?1:0;
62 state_array->state[1].ready=(levels & GPIO_PCMCIA_IRQ)?1:0;
63 state_array->state[1].bvd1=1; /* Not available on Pangolin. */
64 state_array->state[1].bvd2=1; /* Not available on Pangolin. */
65 state_array->state[1].wrprot=0; /* Not available on Pangolin. */
66 state_array->state[1].vs_3v=1; /* Can only apply 3.3V on Pangolin. */
67 state_array->state[1].vs_Xv=0;
69 state_array->state[0].detect=((levels & GPIO_PCMCIA_CD)==0)?1:0;
70 state_array->state[0].ready=(levels & GPIO_PCMCIA_IRQ)?1:0;
71 state_array->state[0].bvd1=1; /* Not available on Pangolin. */
72 state_array->state[0].bvd2=1; /* Not available on Pangolin. */
73 state_array->state[0].wrprot=0; /* Not available on Pangolin. */
74 state_array->state[0].vs_3v=0; /* voltage level is determined by jumper setting */
75 state_array->state[0].vs_Xv=0;
80 static int pangolin_pcmcia_get_irq_info(struct pcmcia_irq_info *info){
82 if(info->sock>1) return -1;
83 #ifndef CONFIG_SA1100_PANGOLIN_PCMCIA_IDE
85 info->irq=IRQ_PCMCIA_IRQ;
88 info->irq=IRQ_PCMCIA_IRQ;
93 static int pangolin_pcmcia_configure_socket(const struct pcmcia_configure
96 unsigned long value, flags;
98 if(configure->sock>1) return -1;
99 #ifndef CONFIG_SA1100_PANGOLIN_PCMCIA_IDE
100 if(configure->sock==0) return 0;
102 save_flags_cli(flags);
104 /* Murphy: BUS_ON different from POWER ? */
106 switch(configure->vcc){
109 #ifndef CONFIG_SA1100_PANGOLIN_PCMCIA_IDE
111 printk(KERN_WARNING "%s(): CS asked for 5V, applying 3.3V...\n",
113 case 33: /* Can only apply 3.3V to the CF slot. */
117 printk(KERN_WARNING "%s(): CS asked for 5V, determinded by jumper setting...\n", __FUNCTION__);
120 printk(KERN_WARNING "%s(): CS asked for 3.3V, determined by jumper setting...\n", __FUNCTION__);
124 printk(KERN_ERR "%s(): unrecognized Vcc %u\n", __FUNCTION__,
126 restore_flags(flags);
129 #ifdef CONFIG_SA1100_PANGOLIN_PCMCIA_IDE
130 /* reset & unreset request */
131 if(configure->sock==0) {
132 if(configure->reset) {
133 GPSR |= GPIO_PCMCIA_RESET;
135 GPCR |= GPIO_PCMCIA_RESET;
139 /* Silently ignore Vpp, output enable, speaker enable. */
140 restore_flags(flags);
144 static int pangolin_pcmcia_socket_init(int sock)
146 /* enable card status IRQs - see sa1100_assabet.c for details */
150 static int pangolin_pcmcia_socket_suspend(int sock)
152 /* disable card status IRQs - see sa1100_assabet.c for details */
156 struct pcmcia_low_level pangolin_pcmcia_ops = {
157 init: pangolin_pcmcia_init,
158 shutdown: pangolin_pcmcia_shutdown,
159 socket_state: pangolin_pcmcia_socket_state,
160 get_irq_info: pangolin_pcmcia_get_irq_info,
161 configure_socket: pangolin_pcmcia_configure_socket,
163 socket_init: pangolin_pcmcia_socket_init,
164 socket_suspend, pangolin_pcmcia_socket_suspend,