4 * (c) Copyright 2000 The Puffin Group Inc.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * by Helge Deller <deller@gmx.de>
14 #include <linux/errno.h>
15 #include <linux/init.h>
16 #include <linux/interrupt.h>
17 #include <linux/module.h>
18 #include <linux/slab.h>
19 #include <linux/types.h>
25 #define ASP_GSC_IRQ 3 /* hardcoded interrupt for GSC */
27 #define ASP_VER_OFFSET 0x20 /* offset of ASP version */
29 #define ASP_LED_ADDR 0xf0800020
31 #define VIPER_INT_WORD 0xFFFBF088 /* addr of viper interrupt word */
33 static void asp_choose_irq(struct parisc_device *dev, void *ctrl)
37 switch (dev->id.sversion) {
38 case 0x71: irq = 9; break; /* SCSI */
39 case 0x72: irq = 8; break; /* LAN */
40 case 0x73: irq = 1; break; /* HIL */
41 case 0x74: irq = 7; break; /* Centronics */
42 case 0x75: irq = (dev->hw_path == 4) ? 5 : 6; break; /* RS232 */
43 case 0x76: irq = 10; break; /* EISA BA */
44 case 0x77: irq = 11; break; /* Graphics1 */
45 case 0x7a: irq = 13; break; /* Audio (Bushmaster) */
46 case 0x7b: irq = 13; break; /* Audio (Scorpio) */
47 case 0x7c: irq = 3; break; /* FW SCSI */
48 case 0x7d: irq = 4; break; /* FDDI */
49 case 0x7f: irq = 13; break; /* Audio (Outfield) */
50 default: return; /* Unknown */
53 gsc_asic_assign_irq(ctrl, irq, &dev->irq);
56 /* There are two register ranges we're interested in. Interrupt /
57 * Status / LED are at 0xf080xxxx and Asp special registers are at
58 * 0xf082fxxx. PDC only tells us that Asp is at 0xf082f000, so for
59 * the purposes of interrupt handling, we have to tell other bits of
60 * the kernel to look at the other registers.
62 #define ASP_INTERRUPT_ADDR 0xf0800000
65 asp_init_chip(struct parisc_device *dev)
68 struct gsc_irq gsc_irq;
71 asp = kmalloc(sizeof(*asp), GFP_KERNEL);
75 asp->version = gsc_readb(dev->hpa + ASP_VER_OFFSET) & 0xf;
76 asp->name = (asp->version == 1) ? "Asp" : "Cutoff";
77 asp->hpa = ASP_INTERRUPT_ADDR;
79 printk(KERN_INFO "%s version %d at 0x%lx found.\n",
80 asp->name, asp->version, dev->hpa);
82 /* the IRQ ASP should use */
84 dev->irq = gsc_claim_irq(&gsc_irq, ASP_GSC_IRQ);
86 printk(KERN_ERR "%s(): cannot get GSC irq\n", __FUNCTION__);
90 asp->eim = ((u32) gsc_irq.txn_addr) | gsc_irq.txn_data;
92 ret = request_irq(gsc_irq.irq, gsc_asic_intr, 0, "asp", asp);
96 /* Program VIPER to interrupt on the ASP irq */
97 gsc_writel((1 << (31 - ASP_GSC_IRQ)),VIPER_INT_WORD);
99 /* Done init'ing, register this driver */
100 ret = gsc_common_setup(dev, asp);
104 gsc_fixup_irqs(dev, asp, asp_choose_irq);
105 /* Mongoose is a sibling of Asp, not a child... */
106 gsc_fixup_irqs(parisc_parent(dev), asp, asp_choose_irq);
108 /* initialize the chassis LEDs */
109 #ifdef CONFIG_CHASSIS_LCD_LED
110 register_led_driver(DISPLAY_MODEL_OLD_ASP, LED_CMD_REG_NONE,
121 static struct parisc_device_id asp_tbl[] = {
122 { HPHW_BA, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00070 },
126 struct parisc_driver asp_driver = {
129 .probe = asp_init_chip,