patch-2.4.22 linux-2.4.22/drivers/pcmcia/au1000_xxs1500.c

• Lines: 192
• Date: 2003-08-25 04:44:42.000000000 -0700
• Orig file: linux-2.4.21/drivers/pcmcia/au1000_xxs1500.c
• Orig date: 1969-12-31 16:00:00.000000000 -0800

diff -urN linux-2.4.21/drivers/pcmcia/au1000_xxs1500.c linux-2.4.22/drivers/pcmcia/au1000_xxs1500.c
@@ -0,0 +1,191 @@
+/*
+ *
+ * MyCable board specific pcmcia routines.
+ *
+ * Copyright 2003 MontaVista Software Inc.
+ * Author: Pete Popov, MontaVista Software, Inc.
+ *         	ppopov@mvista.com or source@mvista.com
+ *
+ * ########################################################################
+ *
+ *  This program is free software; you can distribute it and/or modify it
+ *  under the terms of the GNU General Public License (Version 2) as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope 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.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * ########################################################################
+ *
+ * 
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/config.h>
+#include <linux/delay.h>
+#include <linux/ioport.h>
+#include <linux/kernel.h>
+#include <linux/tqueue.h>
+#include <linux/timer.h>
+#include <linux/mm.h>
+#include <linux/proc_fs.h>
+#include <linux/version.h>
+#include <linux/types.h>
+
+#include <pcmcia/version.h>
+#include <pcmcia/cs_types.h>
+#include <pcmcia/cs.h>
+#include <pcmcia/ss.h>
+#include <pcmcia/bulkmem.h>
+#include <pcmcia/cistpl.h>
+#include <pcmcia/bus_ops.h>
+#include "cs_internal.h"
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/system.h>
+
+#include <asm/au1000.h>
+#include <asm/au1000_pcmcia.h>
+#include <asm/xxs1500.h>
+
+#if 0
+#define DEBUG(x,args...)	printk(__FUNCTION__ ": " x,##args)
+#else
+#define DEBUG(x,args...)
+#endif
+
+static int xxs1500_pcmcia_init(struct pcmcia_init *init)
+{
+	return PCMCIA_NUM_SOCKS;
+}
+
+static int xxs1500_pcmcia_shutdown(void)
+{
+	/* turn off power */
+	au_writel(au_readl(GPIO2_PINSTATE) | (1<<14)|(1<<30),
+			GPIO2_OUTPUT);
+	au_sync_delay(100);
+
+	/* assert reset */
+	au_writel(au_readl(GPIO2_PINSTATE) | (1<<4)|(1<<20), 
+			GPIO2_OUTPUT);
+	au_sync_delay(100);
+	return 0;
+}
+
+
+static int 
+xxs1500_pcmcia_socket_state(unsigned sock, struct pcmcia_state *state)
+{
+	u32 inserted; u32 vs;
+	unsigned long gpio, gpio2;
+
+	if(sock > PCMCIA_MAX_SOCK) return -1;
+
+	gpio = au_readl(SYS_PINSTATERD);
+	gpio2 = au_readl(GPIO2_PINSTATE);
+
+	vs = gpio2 & ((1<<8) | (1<<9));
+	inserted = (!(gpio & 0x1) && !(gpio & 0x2));
+
+	state->ready = 0;
+	state->vs_Xv = 0;
+	state->vs_3v = 0;
+	state->detect = 0;
+
+	if (inserted) {
+		switch (vs) {
+			case 0:
+			case 1:
+			case 2:
+				state->vs_3v=1;
+				break;
+			case 3: /* 5V */
+			default:
+				/* return without setting 'detect' */
+				printk(KERN_ERR "au1x00_cs: unsupported VS\n",
+						vs);
+				return;
+		}
+		state->detect = 1;
+	}
+
+	if (state->detect) {
+		state->ready = 1;
+	}
+
+	state->bvd1= gpio2 & (1<<10);
+	state->bvd2 = gpio2 & (1<<11);
+	state->wrprot=0; 
+	return 1;
+}
+
+
+static int xxs1500_pcmcia_get_irq_info(struct pcmcia_irq_info *info)
+{
+
+	if(info->sock > PCMCIA_MAX_SOCK) return -1;
+	info->irq = PCMCIA_IRQ;
+	return 0;
+}
+
+
+static int 
+xxs1500_pcmcia_configure_socket(const struct pcmcia_configure *configure)
+{
+
+	if(configure->sock > PCMCIA_MAX_SOCK) return -1;
+
+	DEBUG("Vcc %dV Vpp %dV, reset %d\n", 
+			configure->vcc, configure->vpp, configure->reset);
+
+	switch(configure->vcc){
+		case 33: /* Vcc 3.3V */
+			/* turn on power */
+			DEBUG("turn on power\n");
+			au_writel((au_readl(GPIO2_PINSTATE) & ~(1<<14))|(1<<30),
+					GPIO2_OUTPUT);
+			au_sync_delay(100);
+			break;
+		case 50: /* Vcc 5V */
+		default: /* what's this ? */
+			printk(KERN_ERR "au1x00_cs: unsupported VCC\n");
+		case 0:  /* Vcc 0 */
+			/* turn off power */
+			au_sync_delay(100);
+			au_writel(au_readl(GPIO2_PINSTATE) | (1<<14)|(1<<30),
+					GPIO2_OUTPUT);
+			break;
+	}
+
+	if (!configure->reset) {
+		DEBUG("deassert reset\n");
+		au_writel((au_readl(GPIO2_PINSTATE) & ~(1<<4))|(1<<20), 
+				GPIO2_OUTPUT);
+		au_sync_delay(100);
+		au_writel((au_readl(GPIO2_PINSTATE) & ~(1<<5))|(1<<21), 
+				GPIO2_OUTPUT);
+	}
+	else {
+		DEBUG("assert reset\n");
+		au_writel(au_readl(GPIO2_PINSTATE) | (1<<4)|(1<<20), 
+				GPIO2_OUTPUT);
+	}
+	au_sync_delay(100);
+	return 0;
+}
+
+struct pcmcia_low_level xxs1500_pcmcia_ops = { 
+	xxs1500_pcmcia_init,
+	xxs1500_pcmcia_shutdown,
+	xxs1500_pcmcia_socket_state,
+	xxs1500_pcmcia_get_irq_info,
+	xxs1500_pcmcia_configure_socket
+};