Re: [PATCH] 2.4.30 PicoPower IRQ router

["Sune Mølgaard" <sune@molgaard.org>]

Jesper Juhl wrote:
> A few more style comments below. Nice cleanup compared to the first 
> version though. Now let's get it perfect :-)
> 

Let's try :-)

> Proper form would be:  Signed-off-by: Sune Molgaard <sune@molgaard.org>

Signed-off-by: Sune Mølgaard <sune@molgaard.org>

> This mismatch is found several places in the patch. Besides, the patch 
> seems whitespace damaged - the lines seem to be indented with spaces, not 
> tabs. Perhaps your email client mangled it?
> 

How do I tell?

>>+        switch(device)
>>+       {
> 
> 
> The opening brace goes on the same line as the switch statement.
> 
> See Documentation/CodingStyle Chapter 2

The other switch statements in the file are bracketed like this. I think 
changing that would be up to that author. Correct me if I am wrong.

--Begin patch--
diff -Npru linux-2.4.30/arch/i386/kernel/pci-irq.c \
linux/arch/i386/kernel/pci-irq.c
--- 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    2005-04-28 12:31:34.999771672 +0200
@@ -157,6 +157,25 @@ static void write_config_nybble(struct p
  }

  /*
+ * 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 +628,24 @@ static int pirq_bios_set(struct pci_dev

  #endif

+static __init int pico_router_probe(struct irq_router *r, struct 
pci_dev *router, u16 device)
+{
+       switch(device)
+       {
+               case PCI_DEVICE_PICOPOWER_PT86C523:
+                       r->name = "PicoPower PT86C523";
+                       r->get = pirq_pico_get;
+                       r->set = pirq_pico_set;
+                       return 1;
+
+               case PCI_DEVICE_PICOPOWER_PT86C523BBP:
+                       r->name = "PicoPower PT86C523 rev. BB+";
+                       r->get = pirq_pico_get;
+                       r->set = pirq_pico_set;
+                       return 1;
+       }
+       return 0;
+}

  static __init int intel_router_probe(struct irq_router *r, struct 
pci_dev *router, u16 device)
  {
@@ -814,6 +851,7 @@ static __init int amd_router_probe(struc
  }

  static __initdata struct irq_router_handler pirq_routers[] = {
+       { PCI_VENDOR_ID_PICOPOWER, pico_router_probe },
         { PCI_VENDOR_ID_INTEL, intel_router_probe },
         { PCI_VENDOR_ID_AL, ali_router_probe },
         { PCI_VENDOR_ID_ITE, ite_router_probe },
diff -Npru linux-2.4.30/include/linux/pci_ids.h \
linux/include/linux/pci_ids.h
--- linux-2.4.30/include/linux/pci_ids.h        2005-04-04 
03:42:20.000000000 +0200
+++ linux/include/linux/pci_ids.h       2005-04-27 20:04:12.195597128 +0200
@@ -119,6 +119,10 @@

  /* Vendors and devices.  Sort key: vendor first, device next. */

+#define PCI_VENDOR_ID_PICOPOWER             0x104c
+#define PCI_DEVICE_ID_PICOPOWER_PT86C523    0x0002
+#define PCI_DEVICE_ID_PICOPOWER_PT86C523BBP 0x8002
+
  #define PCI_VENDOR_ID_DYNALINK         0x0675
  #define PCI_DEVICE_ID_DYNALINK_IS64PH  0x1702

--End patch--

Best regards,

Sune Mølgaard

-- 
Now, suddenly, dynamic HTML makes the Web as interactive as my old Apple 
IIc.
- Peter Merholz