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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/parisc/asp.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/parisc/asp.c')
-rw-r--r--drivers/parisc/asp.c132
1 files changed, 132 insertions, 0 deletions
diff --git a/drivers/parisc/asp.c b/drivers/parisc/asp.c
new file mode 100644
index 000000000000..388609967133
--- /dev/null
+++ b/drivers/parisc/asp.c
@@ -0,0 +1,132 @@
+/*
+ * ASP Device Driver
+ *
+ * (c) Copyright 2000 The Puffin Group Inc.
+ *
+ * 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, or
+ * (at your option) any later version.
+ *
+ * by Helge Deller <deller@gmx.de>
+ */
+
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <asm/io.h>
+#include <asm/led.h>
+
+#include "gsc.h"
+
+#define ASP_GSC_IRQ 3 /* hardcoded interrupt for GSC */
+
+#define ASP_VER_OFFSET 0x20 /* offset of ASP version */
+
+#define ASP_LED_ADDR 0xf0800020
+
+#define VIPER_INT_WORD 0xFFFBF088 /* addr of viper interrupt word */
+
+static struct gsc_asic asp;
+
+static void asp_choose_irq(struct parisc_device *dev, void *ctrl)
+{
+ int irq;
+
+ switch (dev->id.sversion) {
+ case 0x71: irq = 9; break; /* SCSI */
+ case 0x72: irq = 8; break; /* LAN */
+ case 0x73: irq = 1; break; /* HIL */
+ case 0x74: irq = 7; break; /* Centronics */
+ case 0x75: irq = (dev->hw_path == 4) ? 5 : 6; break; /* RS232 */
+ case 0x76: irq = 10; break; /* EISA BA */
+ case 0x77: irq = 11; break; /* Graphics1 */
+ case 0x7a: irq = 13; break; /* Audio (Bushmaster) */
+ case 0x7b: irq = 13; break; /* Audio (Scorpio) */
+ case 0x7c: irq = 3; break; /* FW SCSI */
+ case 0x7d: irq = 4; break; /* FDDI */
+ case 0x7f: irq = 13; break; /* Audio (Outfield) */
+ default: return; /* Unknown */
+ }
+
+ gsc_asic_assign_irq(ctrl, irq, &dev->irq);
+
+ switch (dev->id.sversion) {
+ case 0x73: irq = 2; break; /* i8042 High-priority */
+ case 0x76: irq = 0; break; /* EISA BA */
+ default: return; /* Other */
+ }
+
+ gsc_asic_assign_irq(ctrl, irq, &dev->aux_irq);
+}
+
+/* There are two register ranges we're interested in. Interrupt /
+ * Status / LED are at 0xf080xxxx and Asp special registers are at
+ * 0xf082fxxx. PDC only tells us that Asp is at 0xf082f000, so for
+ * the purposes of interrupt handling, we have to tell other bits of
+ * the kernel to look at the other registers.
+ */
+#define ASP_INTERRUPT_ADDR 0xf0800000
+
+int __init
+asp_init_chip(struct parisc_device *dev)
+{
+ struct gsc_irq gsc_irq;
+ int ret;
+
+ asp.version = gsc_readb(dev->hpa + ASP_VER_OFFSET) & 0xf;
+ asp.name = (asp.version == 1) ? "Asp" : "Cutoff";
+ asp.hpa = ASP_INTERRUPT_ADDR;
+
+ printk(KERN_INFO "%s version %d at 0x%lx found.\n",
+ asp.name, asp.version, dev->hpa);
+
+ /* the IRQ ASP should use */
+ ret = -EBUSY;
+ dev->irq = gsc_claim_irq(&gsc_irq, ASP_GSC_IRQ);
+ if (dev->irq < 0) {
+ printk(KERN_ERR "%s(): cannot get GSC irq\n", __FUNCTION__);
+ goto out;
+ }
+
+ asp.eim = ((u32) gsc_irq.txn_addr) | gsc_irq.txn_data;
+
+ ret = request_irq(gsc_irq.irq, gsc_asic_intr, 0, "asp", &asp);
+ if (ret < 0)
+ goto out;
+
+ /* Program VIPER to interrupt on the ASP irq */
+ gsc_writel((1 << (31 - ASP_GSC_IRQ)),VIPER_INT_WORD);
+
+ /* Done init'ing, register this driver */
+ ret = gsc_common_setup(dev, &asp);
+ if (ret)
+ goto out;
+
+ gsc_fixup_irqs(dev, &asp, asp_choose_irq);
+ /* Mongoose is a sibling of Asp, not a child... */
+ gsc_fixup_irqs(parisc_parent(dev), &asp, asp_choose_irq);
+
+ /* initialize the chassis LEDs */
+#ifdef CONFIG_CHASSIS_LCD_LED
+ register_led_driver(DISPLAY_MODEL_OLD_ASP, LED_CMD_REG_NONE,
+ ASP_LED_ADDR);
+#endif
+
+ out:
+ return ret;
+}
+
+static struct parisc_device_id asp_tbl[] = {
+ { HPHW_BA, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00070 },
+ { 0, }
+};
+
+struct parisc_driver asp_driver = {
+ .name = "Asp",
+ .id_table = asp_tbl,
+ .probe = asp_init_chip,
+};

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