patch-2.4.13 linux/drivers/pcmcia/sa1100_stork.c
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- Lines: 203
- Date:
Thu Oct 11 09:43:29 2001
- Orig file:
v2.4.12/linux/drivers/pcmcia/sa1100_stork.c
- Orig date:
Wed Dec 31 16:00:00 1969
diff -u --recursive --new-file v2.4.12/linux/drivers/pcmcia/sa1100_stork.c linux/drivers/pcmcia/sa1100_stork.c
@@ -0,0 +1,202 @@
+/*
+ * drivers/pcmcia/sa1100_stork.c
+ *
+ Copyright 2001 (C) Ken Gordon
+
+ This is derived from pre-existing drivers/pcmcia/sa1100_?????.c
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ *
+ * PCMCIA implementation routines for stork
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/i2c.h>
+
+#include <asm/hardware.h>
+#include <asm/irq.h>
+#include <asm/arch/pcmcia.h>
+
+static int debug = 0;
+
+static struct pcmcia_init sa1100_stork_pcmcia_init;
+
+static int stork_pcmcia_init(struct pcmcia_init *init)
+{
+ int irq, res;
+ printk("in stork_pcmcia_init\n");
+
+ sa1100_stork_pcmcia_init = *init;
+
+ /* Enable CF bus: */
+ storkSetLatchA(STORK_PCMCIA_PULL_UPS_POWER_ON);
+
+ /* All those are inputs */
+ GPDR &= ~(GPIO_STORK_PCMCIA_A_CARD_DETECT | GPIO_STORK_PCMCIA_B_CARD_DETECT | GPIO_STORK_PCMCIA_A_RDY| GPIO_STORK_PCMCIA_B_RDY);
+
+ /* Set transition detect */
+ set_GPIO_IRQ_edge( GPIO_STORK_PCMCIA_A_CARD_DETECT | GPIO_STORK_PCMCIA_B_CARD_DETECT, GPIO_BOTH_EDGES );
+ set_GPIO_IRQ_edge( GPIO_STORK_PCMCIA_A_RDY| GPIO_STORK_PCMCIA_B_RDY, GPIO_FALLING_EDGE );
+
+ /* Register interrupts */
+ irq = IRQ_GPIO_STORK_PCMCIA_A_CARD_DETECT;
+ res = request_irq( irq, init->handler, SA_INTERRUPT, "PCMCIA_CD0", NULL );
+ if( res < 0 ) goto irq_err;
+ irq = IRQ_GPIO_STORK_PCMCIA_B_CARD_DETECT;
+ res = request_irq( irq, init->handler, SA_INTERRUPT, "PCMCIA_CD1", NULL );
+ if( res < 0 ) goto irq_err;
+
+ return 2;
+
+ irq_err:
+ printk( KERN_ERR __FUNCTION__ ": Request for IRQ %u failed\n", irq );
+ return -1;
+}
+
+static int stork_pcmcia_shutdown(void)
+{
+ printk(__FUNCTION__ "\n");
+ /* disable IRQs */
+ free_irq( IRQ_GPIO_STORK_PCMCIA_A_CARD_DETECT, NULL );
+ free_irq( IRQ_GPIO_STORK_PCMCIA_B_CARD_DETECT, NULL );
+
+ /* Disable CF bus: */
+ storkClearLatchA(STORK_PCMCIA_PULL_UPS_POWER_ON);
+ storkClearLatchA(STORK_PCMCIA_A_POWER_ON);
+ storkClearLatchA(STORK_PCMCIA_B_POWER_ON);
+ return 0;
+}
+
+static int stork_pcmcia_socket_state(struct pcmcia_state_array *state_array)
+{
+ unsigned long levels;
+
+ if(state_array->size<2) return -1;
+
+ memset(state_array->state, 0,
+ (state_array->size)*sizeof(struct pcmcia_state));
+
+ levels=GPLR;
+
+ if (debug > 1)
+ printk(__FUNCTION__ " GPLR=%x IRQ[1:0]=%x\n", GPLR, (GPLR & (GPIO_STORK_PCMCIA_A_RDY|GPIO_STORK_PCMCIA_B_RDY)));
+ state_array->state[0].detect=((levels & GPIO_STORK_PCMCIA_A_CARD_DETECT)==0)?1:0;
+ state_array->state[0].ready=(levels & GPIO_STORK_PCMCIA_A_RDY)?1:0;
+ state_array->state[0].bvd1= 1;
+ state_array->state[0].bvd2= 1;
+ state_array->state[0].wrprot=0;
+ state_array->state[0].vs_3v=1;
+ state_array->state[0].vs_Xv=0;
+
+ state_array->state[1].detect=((levels & GPIO_STORK_PCMCIA_B_CARD_DETECT)==0)?1:0;
+ state_array->state[1].ready=(levels & GPIO_STORK_PCMCIA_B_RDY)?1:0;
+ state_array->state[1].bvd1=1;
+ state_array->state[1].bvd2=1;
+ state_array->state[1].wrprot=0;
+ state_array->state[1].vs_3v=1;
+ state_array->state[1].vs_Xv=0;
+
+ return 1;
+}
+
+static int stork_pcmcia_get_irq_info(struct pcmcia_irq_info *info)
+{
+
+ switch (info->sock) {
+ case 0:
+ info->irq=IRQ_GPIO_STORK_PCMCIA_A_RDY;
+ break;
+ case 1:
+ info->irq=IRQ_GPIO_STORK_PCMCIA_B_RDY;
+ break;
+ default:
+ return -1;
+ }
+ return 0;
+}
+
+static int stork_pcmcia_configure_socket(const struct pcmcia_configure *configure)
+{
+ int card = configure->sock;
+ unsigned long flags;
+
+ int DETECT, RDY, POWER, RESET;
+
+ if (card > 1) return -1;
+
+ printk(__FUNCTION__ ": socket=%d vcc=%d vpp=%d reset=%d\n",
+ card, configure->vcc, configure->vpp, configure->reset);
+
+ save_flags_cli(flags);
+
+ if (card == 0) {
+ DETECT = GPIO_STORK_PCMCIA_A_CARD_DETECT;
+ RDY = GPIO_STORK_PCMCIA_A_RDY;
+ POWER = STORK_PCMCIA_A_POWER_ON;
+ RESET = STORK_PCMCIA_A_RESET;
+ } else {
+ DETECT = GPIO_STORK_PCMCIA_B_CARD_DETECT;
+ RDY = GPIO_STORK_PCMCIA_B_RDY;
+ POWER = STORK_PCMCIA_B_POWER_ON;
+ RESET = STORK_PCMCIA_B_RESET;
+ }
+
+/*
+ if (storkTestGPIO(DETECT)) {
+ printk("no card detected - but resetting anyway\r\n");
+ }
+*/
+ switch (configure->vcc) {
+ case 0:
+ storkClearLatchA(STORK_PCMCIA_PULL_UPS_POWER_ON);
+ storkClearLatchA(POWER);
+ break;
+
+ case 50:
+ case 33:
+ storkSetLatchA(STORK_PCMCIA_PULL_UPS_POWER_ON);
+ storkSetLatchA(POWER);
+ break;
+
+ default:
+ printk(KERN_ERR "%s(): unrecognized Vcc %u\n", __FUNCTION__,
+ configure->vcc);
+ restore_flags(flags);
+ return -1;
+ }
+
+ if (configure->reset)
+ storkSetLatchB(RESET);
+ else
+ storkClearLatchB(RESET);
+
+ restore_flags(flags);
+
+ /* silently ignore vpp and speaker enables. */
+
+ printk(__FUNCTION__ ": finished\n");
+
+ return 0;
+}
+
+struct pcmcia_low_level stork_pcmcia_ops = {
+ stork_pcmcia_init,
+ stork_pcmcia_shutdown,
+ stork_pcmcia_socket_state,
+ stork_pcmcia_get_irq_info,
+ stork_pcmcia_configure_socket
+};
+
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