Re: [PATCH] 2.4.30 PicoPower IRQ router

[Sune Mølgaard <sune@molgaard.org>]

Alessandro Amici wrote:
> just in case you didn't notice: your patch is empty :)

How so? I see it fine in the mail that came back to me, but ok. I'll
repost below.

> and try to gather info on someone actually in charge of the subsystem 
> you are modifying and CC him. random patches on l-k may not get the 
> needed attention.

I thought of that and forwarded to Martin Mares, but thank you for the tip

Best regards,

Sune

--Start patch--

--- linux-2.4.30/arch/i386/kernel/pci-irq.c	2005-04-04
03:42:19.000000000 +0200
+++ linux/arch/i386/kernel/pci-irq.c	2005-04-25 08:43:02.501678464 +0200
@@ -157,6 +157,25 @@
 }

 /*
+ * PicoPower PT86C523
+ */
+
+static int pirq_pico_get(struct pci_dev *router, struct pci_dev *dev,
int pirq)
+{
+  outb(0x10+((pirq-1)>>1), 0x24);
+  return ((pirq-1)&1) ? (inb(0x26)>>4) : (inb(0x26)&0xf);
+}
+
+static int pirq_pico_set(struct pci_dev *router, struct pci_dev *dev,
int pirq, int irq)
+{
+  outb(0x10+((pirq-1)>>1), 0x24);
+  unsigned int x;
+  x = inb(0x26);
+  x = ((pirq-1)&1) ? ((x&0x0f)|(irq<<4)) : ((x&0xf0)|(irq));
+  outb(x,0x26);
+}
+
+/*
  * ALI pirq entries are damn ugly, and completely undocumented.
  * This has been figured out from pirq tables, and it's not a pretty
  * picture.
@@ -609,6 +628,23 @@

 #endif

+static __init int pico_router_probe(struct irq_router *r, struct
pci_dev *router, u16 device)
+{
+  switch(device)
+  {
+    case 0x0002:
+      r->name = "PicoPower PT86C523";
+      r->get = pirq_pico_get;
+      r->set = pirq_pico_set;
+      return 1;
+
+    case 0x8002:
+      r->name = "PicoPower PT86C523 rev. BB+";
+      r->get = pirq_pico_get;
+      r->set = pirq_pico_set;
+      return 1;
+  }
+}

 static __init int intel_router_probe(struct irq_router *r, struct
pci_dev *router, u16 device)
 {
@@ -814,6 +850,7 @@
 }
 		
 static __initdata struct irq_router_handler pirq_routers[] = {
+        { 0x1066, pico_router_probe },
 	{ PCI_VENDOR_ID_INTEL, intel_router_probe },
 	{ PCI_VENDOR_ID_AL, ali_router_probe },
 	{ PCI_VENDOR_ID_ITE, ite_router_probe },

--End patch--

--
The best way to accelerate a Macintosh is at 9.8m sec sec.
- Marcus Dolengo

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