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 struct gsc_asic asp
;
35 static void asp_choose_irq(struct parisc_device
*dev
, void *ctrl
)
39 switch (dev
->id
.sversion
) {
40 case 0x71: irq
= 9; break; /* SCSI */
41 case 0x72: irq
= 8; break; /* LAN */
42 case 0x73: irq
= 1; break; /* HIL */
43 case 0x74: irq
= 7; break; /* Centronics */
44 case 0x75: irq
= (dev
->hw_path
== 4) ? 5 : 6; break; /* RS232 */
45 case 0x76: irq
= 10; break; /* EISA BA */
46 case 0x77: irq
= 11; break; /* Graphics1 */
47 case 0x7a: irq
= 13; break; /* Audio (Bushmaster) */
48 case 0x7b: irq
= 13; break; /* Audio (Scorpio) */
49 case 0x7c: irq
= 3; break; /* FW SCSI */
50 case 0x7d: irq
= 4; break; /* FDDI */
51 case 0x7f: irq
= 13; break; /* Audio (Outfield) */
52 default: return; /* Unknown */
55 gsc_asic_assign_irq(ctrl
, irq
, &dev
->irq
);
57 switch (dev
->id
.sversion
) {
58 case 0x73: irq
= 2; break; /* i8042 High-priority */
59 case 0x76: irq
= 0; break; /* EISA BA */
60 default: return; /* Other */
63 gsc_asic_assign_irq(ctrl
, irq
, &dev
->aux_irq
);
66 /* There are two register ranges we're interested in. Interrupt /
67 * Status / LED are at 0xf080xxxx and Asp special registers are at
68 * 0xf082fxxx. PDC only tells us that Asp is at 0xf082f000, so for
69 * the purposes of interrupt handling, we have to tell other bits of
70 * the kernel to look at the other registers.
72 #define ASP_INTERRUPT_ADDR 0xf0800000
75 asp_init_chip(struct parisc_device
*dev
)
77 struct gsc_irq gsc_irq
;
80 asp
.version
= gsc_readb(dev
->hpa
.start
+ ASP_VER_OFFSET
) & 0xf;
81 asp
.name
= (asp
.version
== 1) ? "Asp" : "Cutoff";
82 asp
.hpa
= ASP_INTERRUPT_ADDR
;
84 printk(KERN_INFO
"%s version %d at 0x%lx found.\n",
85 asp
.name
, asp
.version
, dev
->hpa
.start
);
87 /* the IRQ ASP should use */
89 dev
->irq
= gsc_claim_irq(&gsc_irq
, ASP_GSC_IRQ
);
91 printk(KERN_ERR
"%s(): cannot get GSC irq\n", __FUNCTION__
);
95 asp
.eim
= ((u32
) gsc_irq
.txn_addr
) | gsc_irq
.txn_data
;
97 ret
= request_irq(gsc_irq
.irq
, gsc_asic_intr
, 0, "asp", &asp
);
101 /* Program VIPER to interrupt on the ASP irq */
102 gsc_writel((1 << (31 - ASP_GSC_IRQ
)),VIPER_INT_WORD
);
104 /* Done init'ing, register this driver */
105 ret
= gsc_common_setup(dev
, &asp
);
109 gsc_fixup_irqs(dev
, &asp
, asp_choose_irq
);
110 /* Mongoose is a sibling of Asp, not a child... */
111 gsc_fixup_irqs(parisc_parent(dev
), &asp
, asp_choose_irq
);
113 /* initialize the chassis LEDs */
114 #ifdef CONFIG_CHASSIS_LCD_LED
115 register_led_driver(DISPLAY_MODEL_OLD_ASP
, LED_CMD_REG_NONE
,
123 static struct parisc_device_id asp_tbl
[] = {
124 { HPHW_BA
, HVERSION_REV_ANY_ID
, HVERSION_ANY_ID
, 0x00070 },
128 struct parisc_driver asp_driver
= {
131 .probe
= asp_init_chip
,
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