Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/pnp/quirks.c b/drivers/pnp/quirks.c
new file mode 100644
index 0000000..596a02d
--- /dev/null
+++ b/drivers/pnp/quirks.c
@@ -0,0 +1,152 @@
+/*
+ * 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>
+
+#ifdef CONFIG_PNP_DEBUG
+ #define DEBUG
+#else
+ #undef DEBUG
+#endif
+
+#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++;
+ }
+}
