mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-25 10:19:47 +00:00
![Bjorn Helgaas](/assets/img/avatar_default.png)
Seems pointless to require .c files to test CONFIG_PNP_DEBUG and conditionally define DEBUG before including <linux/pnp.h>. Just test CONFIG_PNP_DEBUG directly in pnp.h. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Adam Belay <ambx1@neo.rr.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
145 lines
3.7 KiB
C
145 lines
3.7 KiB
C
/*
|
|
* This file contains quirk handling code for PnP devices
|
|
* Some devices do not report all their resources, and need to have extra
|
|
* resources added. This is most easily accomplished at initialisation time
|
|
* when building up the resource structure for the first time.
|
|
*
|
|
* Copyright (c) 2000 Peter Denison <peterd@pnd-pc.demon.co.uk>
|
|
*
|
|
* Heavily based on PCI quirks handling which is
|
|
*
|
|
* Copyright (c) 1999 Martin Mares <mj@ucw.cz>
|
|
*/
|
|
|
|
#include <linux/config.h>
|
|
#include <linux/types.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/string.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/pnp.h>
|
|
#include "base.h"
|
|
|
|
|
|
static void quirk_awe32_resources(struct pnp_dev *dev)
|
|
{
|
|
struct pnp_port *port, *port2, *port3;
|
|
struct pnp_option *res = dev->dependent;
|
|
|
|
/*
|
|
* Unfortunately the isapnp_add_port_resource is too tightly bound
|
|
* into the PnP discovery sequence, and cannot be used. Link in the
|
|
* two extra ports (at offset 0x400 and 0x800 from the one given) by
|
|
* hand.
|
|
*/
|
|
for ( ; res ; res = res->next ) {
|
|
port2 = pnp_alloc(sizeof(struct pnp_port));
|
|
if (!port2)
|
|
return;
|
|
port3 = pnp_alloc(sizeof(struct pnp_port));
|
|
if (!port3) {
|
|
kfree(port2);
|
|
return;
|
|
}
|
|
port = res->port;
|
|
memcpy(port2, port, sizeof(struct pnp_port));
|
|
memcpy(port3, port, sizeof(struct pnp_port));
|
|
port->next = port2;
|
|
port2->next = port3;
|
|
port2->min += 0x400;
|
|
port2->max += 0x400;
|
|
port3->min += 0x800;
|
|
port3->max += 0x800;
|
|
}
|
|
printk(KERN_INFO "pnp: AWE32 quirk - adding two ports\n");
|
|
}
|
|
|
|
static void quirk_cmi8330_resources(struct pnp_dev *dev)
|
|
{
|
|
struct pnp_option *res = dev->dependent;
|
|
unsigned long tmp;
|
|
|
|
for ( ; res ; res = res->next ) {
|
|
|
|
struct pnp_irq *irq;
|
|
struct pnp_dma *dma;
|
|
|
|
for( irq = res->irq; irq; irq = irq->next ) { // Valid irqs are 5, 7, 10
|
|
tmp = 0x04A0;
|
|
bitmap_copy(irq->map, &tmp, 16); // 0000 0100 1010 0000
|
|
}
|
|
|
|
for( dma = res->dma; dma; dma = dma->next ) // Valid 8bit dma channels are 1,3
|
|
if( ( dma->flags & IORESOURCE_DMA_TYPE_MASK ) == IORESOURCE_DMA_8BIT )
|
|
dma->map = 0x000A;
|
|
}
|
|
printk(KERN_INFO "pnp: CMI8330 quirk - fixing interrupts and dma\n");
|
|
}
|
|
|
|
static void quirk_sb16audio_resources(struct pnp_dev *dev)
|
|
{
|
|
struct pnp_port *port;
|
|
struct pnp_option *res = dev->dependent;
|
|
int changed = 0;
|
|
|
|
/*
|
|
* The default range on the mpu port for these devices is 0x388-0x388.
|
|
* Here we increase that range so that two such cards can be
|
|
* auto-configured.
|
|
*/
|
|
|
|
for( ; res ; res = res->next ) {
|
|
port = res->port;
|
|
if(!port)
|
|
continue;
|
|
port = port->next;
|
|
if(!port)
|
|
continue;
|
|
port = port->next;
|
|
if(!port)
|
|
continue;
|
|
if(port->min != port->max)
|
|
continue;
|
|
port->max += 0x70;
|
|
changed = 1;
|
|
}
|
|
if(changed)
|
|
printk(KERN_INFO "pnp: SB audio device quirk - increasing port range\n");
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* PnP Quirks
|
|
* Cards or devices that need some tweaking due to incomplete resource info
|
|
*/
|
|
|
|
static struct pnp_fixup pnp_fixups[] = {
|
|
/* Soundblaster awe io port quirk */
|
|
{ "CTL0021", quirk_awe32_resources },
|
|
{ "CTL0022", quirk_awe32_resources },
|
|
{ "CTL0023", quirk_awe32_resources },
|
|
/* CMI 8330 interrupt and dma fix */
|
|
{ "@X@0001", quirk_cmi8330_resources },
|
|
/* Soundblaster audio device io port range quirk */
|
|
{ "CTL0001", quirk_sb16audio_resources },
|
|
{ "CTL0031", quirk_sb16audio_resources },
|
|
{ "CTL0041", quirk_sb16audio_resources },
|
|
{ "CTL0042", quirk_sb16audio_resources },
|
|
{ "CTL0043", quirk_sb16audio_resources },
|
|
{ "CTL0044", quirk_sb16audio_resources },
|
|
{ "CTL0045", quirk_sb16audio_resources },
|
|
{ "" }
|
|
};
|
|
|
|
void pnp_fixup_device(struct pnp_dev *dev)
|
|
{
|
|
int i = 0;
|
|
|
|
while (*pnp_fixups[i].id) {
|
|
if (compare_pnp_id(dev->id,pnp_fixups[i].id)) {
|
|
pnp_dbg("Calling quirk for %s",
|
|
dev->dev.bus_id);
|
|
pnp_fixups[i].quirk_function(dev);
|
|
}
|
|
i++;
|
|
}
|
|
}
|