2 * drivers/pcmcia/sa1100_simpad.c
4 * PCMCIA implementation routines for simpad
7 #include <linux/kernel.h>
8 #include <linux/sched.h>
10 #include <asm/hardware.h>
12 #include "sa1100_generic.h"
14 extern long get_cs3_shadow(void);
15 extern void set_cs3_bit(int value);
16 extern void clear_cs3_bit(int value);
19 static int simpad_pcmcia_init(struct pcmcia_init *init){
22 set_cs3_bit(PCMCIA_RESET);
23 clear_cs3_bit(PCMCIA_BUFF_DIS);
24 clear_cs3_bit(PCMCIA_RESET);
26 clear_cs3_bit(VCC_3V_EN|VCC_5V_EN|EN0|EN1);
28 /* Set transition detect */
29 set_GPIO_IRQ_edge( GPIO_CF_CD, GPIO_NO_EDGES );
30 set_GPIO_IRQ_edge( GPIO_CF_IRQ, GPIO_FALLING_EDGE );
32 /* Register interrupts */
34 res = request_irq( irq, init->handler, SA_INTERRUPT, "CF_CD", NULL );
35 if( res < 0 ) goto irq_err;
37 /* There's only one slot, but it's "Slot 1": */
41 printk( KERN_ERR "%s: Request for IRQ %lu failed\n", __FUNCTION__, irq );
45 static int simpad_pcmcia_shutdown(void)
48 free_irq( IRQ_GPIO_CF_CD, NULL );
52 //set_cs3_bit(PCMCIA_BUFF_DIS);
53 clear_cs3_bit(PCMCIA_RESET);
58 static int simpad_pcmcia_socket_state(struct pcmcia_state_array
62 unsigned long *cs3reg = CS3_BASE;
64 if(state_array->size<2) return -1;
66 memset(state_array->state, 0,
67 (state_array->size)*sizeof(struct pcmcia_state));
71 state_array->state[1].detect=((levels & GPIO_CF_CD)==0)?1:0;
73 state_array->state[1].ready=(levels & GPIO_CF_IRQ)?1:0;
75 state_array->state[1].bvd1=1; /* Not available on Simpad. */
77 state_array->state[1].bvd2=1; /* Not available on Simpad. */
79 state_array->state[1].wrprot=0; /* Not available on Simpad. */
82 if((*cs3reg & 0x0c) == 0x0c) {
83 state_array->state[1].vs_3v=0;
84 state_array->state[1].vs_Xv=0;
87 state_array->state[1].vs_3v=1;
88 state_array->state[1].vs_Xv=0;
93 static int simpad_pcmcia_get_irq_info(struct pcmcia_irq_info *info){
95 if(info->sock>1) return -1;
98 info->irq=IRQ_GPIO_CF_IRQ;
103 static int simpad_pcmcia_configure_socket(const struct pcmcia_configure
106 unsigned long value, flags;
108 if(configure->sock>1) return -1;
110 if(configure->sock==0) return 0;
112 save_flags_cli(flags);
114 /* Murphy: see table of MIC2562a-1 */
116 switch(configure->vcc){
118 clear_cs3_bit(VCC_3V_EN|VCC_5V_EN|EN0|EN1);
122 clear_cs3_bit(VCC_3V_EN|EN0);
123 set_cs3_bit(VCC_5V_EN|EN1);
127 clear_cs3_bit(VCC_5V_EN|EN1);
128 set_cs3_bit(VCC_3V_EN|EN0);
132 printk(KERN_ERR "%s(): unrecognized Vcc %u\n", __FUNCTION__,
134 clear_cs3_bit(VCC_3V_EN|VCC_5V_EN|EN0|EN1);
135 restore_flags(flags);
139 /* Silently ignore Vpp, output enable, speaker enable. */
141 restore_flags(flags);
146 static int simpad_pcmcia_socket_init(int sock)
148 set_GPIO_IRQ_edge(GPIO_CF_CD, GPIO_BOTH_EDGES);
152 static int simpad_pcmcia_socket_suspend(int sock)
154 set_GPIO_IRQ_edge(GPIO_CF_CD, GPIO_NO_EDGES);
158 struct pcmcia_low_level simpad_pcmcia_ops = {
159 init: simpad_pcmcia_init,
160 shutdown: simpad_pcmcia_shutdown,
161 socket_state: simpad_pcmcia_socket_state,
162 get_irq_info: simpad_pcmcia_get_irq_info,
163 configure_socket: simpad_pcmcia_configure_socket,
165 socket_init: simpad_pcmcia_socket_init,
166 socket_suspend: simpad_pcmcia_socket_suspend,