* Copyright (C) 1996 Paul Mackerras.
*/
#include <stdarg.h>
-#include <linux/config.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/kernel.h>
static volatile unsigned char __iomem *via;
static DEFINE_SPINLOCK(cuda_lock);
-#ifdef CONFIG_MAC
-#define CUDA_IRQ IRQ_MAC_ADB
-#define __openfirmware
-#define eieio()
-#else
-#define CUDA_IRQ vias->intrs[0].line
-#endif
-
/* VIA registers - spaced 0x200 bytes apart */
#define RS 0x200 /* skip between registers */
#define B 0 /* B-side data */
static int cuda_init_via(void);
static void cuda_start(void);
-static irqreturn_t cuda_interrupt(int irq, void *arg, struct pt_regs *regs);
-static void cuda_input(unsigned char *buf, int nb, struct pt_regs *regs);
+static irqreturn_t cuda_interrupt(int irq, void *arg);
+static void cuda_input(unsigned char *buf, int nb);
void cuda_poll(void);
static int cuda_write(struct adb_request *req);
#endif /* CONFIG_ADB */
#ifdef CONFIG_PPC
-int __init
-find_via_cuda(void)
+int __init find_via_cuda(void)
{
- int err;
struct adb_request req;
+ phys_addr_t taddr;
+ const u32 *reg;
+ int err;
if (vias != 0)
return 1;
- vias = find_devices("via-cuda");
+ vias = of_find_node_by_name(NULL, "via-cuda");
if (vias == 0)
return 0;
- if (vias->next != 0)
- printk(KERN_WARNING "Warning: only using 1st via-cuda\n");
-
-#if 0
- { int i;
-
- printk("find_via_cuda: node = %p, addrs =", vias->node);
- for (i = 0; i < vias->n_addrs; ++i)
- printk(" %x(%x)", vias->addrs[i].address, vias->addrs[i].size);
- printk(", intrs =");
- for (i = 0; i < vias->n_intrs; ++i)
- printk(" %x", vias->intrs[i].line);
- printk("\n"); }
-#endif
- if (vias->n_addrs != 1 || vias->n_intrs != 1) {
- printk(KERN_ERR "via-cuda: expecting 1 address (%d) and 1 interrupt (%d)\n",
- vias->n_addrs, vias->n_intrs);
- if (vias->n_addrs < 1 || vias->n_intrs < 1)
- return 0;
+ reg = get_property(vias, "reg", NULL);
+ if (reg == NULL) {
+ printk(KERN_ERR "via-cuda: No \"reg\" property !\n");
+ goto fail;
+ }
+ taddr = of_translate_address(vias, reg);
+ if (taddr == 0) {
+ printk(KERN_ERR "via-cuda: Can't translate address !\n");
+ goto fail;
+ }
+ via = ioremap(taddr, 0x2000);
+ if (via == NULL) {
+ printk(KERN_ERR "via-cuda: Can't map address !\n");
+ goto fail;
}
- via = ioremap(vias->addrs->address, 0x2000);
cuda_state = idle;
sys_ctrler = SYS_CTRLER_CUDA;
cuda_poll();
return 1;
+
+ fail:
+ of_node_put(vias);
+ vias = NULL;
+ return 0;
}
#endif /* CONFIG_PPC */
static int __init via_cuda_start(void)
{
+ unsigned int irq;
+
if (via == NULL)
return -ENODEV;
-#ifdef CONFIG_PPC
- request_OF_resource(vias, 0, NULL);
-#endif
+#ifdef CONFIG_MAC
+ irq = IRQ_MAC_ADB;
+#else /* CONFIG_MAC */
+ irq = irq_of_parse_and_map(vias, 0);
+ if (irq == NO_IRQ) {
+ printk(KERN_ERR "via-cuda: can't map interrupts for %s\n",
+ vias->full_name);
+ return -ENODEV;
+ }
+#endif /* CONFIG_MAP */
- if (request_irq(CUDA_IRQ, cuda_interrupt, 0, "ADB", cuda_interrupt)) {
- printk(KERN_ERR "cuda_init: can't get irq %d\n", CUDA_IRQ);
+ if (request_irq(irq, cuda_interrupt, 0, "ADB", cuda_interrupt)) {
+ printk(KERN_ERR "via-cuda: can't request irq %d\n", irq);
return -EAGAIN;
}
* disable_irq(), would that work on m68k ? --BenH
*/
local_irq_save(flags);
- cuda_interrupt(0, NULL, NULL);
+ cuda_interrupt(0, NULL);
local_irq_restore(flags);
}
static irqreturn_t
-cuda_interrupt(int irq, void *arg, struct pt_regs *regs)
+cuda_interrupt(int irq, void *arg)
{
int status;
struct adb_request *req = NULL;
(*done)(req);
}
if (ibuf_len)
- cuda_input(ibuf, ibuf_len, regs);
+ cuda_input(ibuf, ibuf_len);
return IRQ_HANDLED;
}
static void
-cuda_input(unsigned char *buf, int nb, struct pt_regs *regs)
+cuda_input(unsigned char *buf, int nb)
{
int i;
}
#endif /* CONFIG_XMON */
#ifdef CONFIG_ADB
- adb_input(buf+2, nb-2, regs, buf[1] & 0x40);
+ adb_input(buf+2, nb-2, buf[1] & 0x40);
#endif /* CONFIG_ADB */
break;