Hi,
This adds ISAPnP support to cs4232.c.
It is missing MPU401 ISAPnP support only because my testcard does not
have a MPU on it. (If you sent me one that has, I will add it ;)
Note clever (?) use of probe_devs to remove instances again.
Knowledge on CSC0000/CSC0100 autoprobing guessing derived from the
Caldera Hardware Database.
Tested on IBM Netfinity 3500, which has an onboard cs4232 chip.
Ciao, Marcus
Index: drivers/sound/cs4232.c
===================================================================
RCS file: /build/mm/work/repository/linux-mm/drivers/sound/cs4232.c,v
retrieving revision 1.10
diff -u -r1.10 cs4232.c
--- drivers/sound/cs4232.c 2001/05/27 18:06:09 1.10
+++ drivers/sound/cs4232.c 2001/06/01 17:26:52
@@ -42,9 +42,11 @@
* Arnaldo C. de Melo got rid of attach_uart401
* Bartlomiej Zolnierkiewicz
* Added some __init/__initdata/__exit
+ * Marcus Meissner Added ISA PnP support.
*/
#include <linux/config.h>
+#include <linux/isapnp.h>
#include <linux/module.h>
#include <linux/init.h>
@@ -95,7 +97,7 @@
schedule_timeout(howlong);
}
-int __init probe_cs4232(struct address_info *hw_config)
+int __init probe_cs4232(struct address_info *hw_config, int isapnp_configured)
{
int i, n;
int base = hw_config->io_base, irq = hw_config->irq;
@@ -110,8 +112,13 @@
printk(KERN_ERR "cs4232.c: I/O port 0x%03x not free\n", base);
return 0;
}
- if (ad1848_detect(hw_config->io_base, NULL, hw_config->osp))
+ if (ad1848_detect(hw_config->io_base, NULL, hw_config->osp)) {
return 1; /* The card is already active */
+ }
+ if (isapnp_configured) {
+ printk(KERN_ERR "cs4232.c: ISA PnP configured, but not detected?\n");
+ return 0;
+ }
/*
* This version of the driver doesn't use the PnP method when configuring
@@ -318,22 +325,92 @@
static int __initdata mpuirq = -1;
static int __initdata synthio = -1;
static int __initdata synthirq = -1;
-
+static int __initdata isapnp = 1;
+MODULE_DESCRIPTION("CS4232 based soundcard driver");
+MODULE_AUTHOR("Hannu Savolainen, Paul Barton-Davis");
MODULE_PARM(io,"i");
+MODULE_PARM_DESC(io,"base I/O port for AD1848");
MODULE_PARM(irq,"i");
+MODULE_PARM_DESC(irq,"IRQ for AD1848 chip");
MODULE_PARM(dma,"i");
+MODULE_PARM_DESC(dma,"8 bit DMA for AD1848 chip");
MODULE_PARM(dma2,"i");
+MODULE_PARM_DESC(dma2,"16 bit DMA for AD1848 chip");
MODULE_PARM(mpuio,"i");
+MODULE_PARM_DESC(mpuio,"MPU 401 base address");
MODULE_PARM(mpuirq,"i");
+MODULE_PARM_DESC(mpuirq,"MPU 401 IRQ");
MODULE_PARM(synthio,"i");
+MODULE_PARM_DESC(synthio,"Maui WaveTable base I/O port");
MODULE_PARM(synthirq,"i");
+MODULE_PARM_DESC(synthirq,"Maui WaveTable IRQ");
+MODULE_PARM(isapnp,"i");
+MODULE_PARM_DESC(isapnp,"Enable ISAPnP probing (default 1)");
/*
* Install a CS4232 based card. Need to have ad1848 and mpu401
* loaded ready.
*/
+/* All cs4232 based cards have the main ad1848 card either as CSC0000 or
+ * CSC0100. */
+struct isapnp_device_id isapnp_cs4232_list[] __initdata = {
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
+ ISAPNP_VENDOR('C','S','C'), ISAPNP_FUNCTION(0x0100),
+ 0 },
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
+ ISAPNP_VENDOR('C','S','C'), ISAPNP_FUNCTION(0x0000),
+ 0 },
+ /* Guillemot Turtlebeach something appears to be cs4232 compatible
+ * (untested) */
+ { ISAPNP_VENDOR('C','S','C'), ISAPNP_ANY_ID,
+ ISAPNP_VENDOR('G','I','M'), ISAPNP_FUNCTION(0x0100),
+ 0 },
+ {0}
+};
+
+MODULE_DEVICE_TABLE(isapnp, isapnp_cs4232_list);
+
+int cs4232_isapnp_probe(struct pci_dev *dev, const struct isapnp_device_id *id)
+{
+ int ret;
+ struct address_info *isapnpcfg;
+
+ isapnpcfg=(struct address_info*)kmalloc(sizeof(*isapnpcfg),GFP_KERNEL);
+ if (!isapnpcfg)
+ return -ENOMEM;
+ /*
+ * If device is active, assume configured with /proc/isapnp
+ * and use anyway. Any other way to check this?
+ */
+ ret = dev->prepare(dev);
+ if(ret && ret != -EBUSY) {
+ printk(KERN_ERR "cs4232: ISA PnP found device that could not be autoconfigured.\n");
+ kfree(isapnpcfg);
+ return -ENODEV;
+ }
+ if(ret != -EBUSY) {
+ if(dev->activate(dev) < 0) {
+ printk(KERN_WARNING "cs4232: ISA PnP activate failed\n");
+ kfree(isapnpcfg);
+ return -ENODEV;
+ }
+ } /* else subfunction is already activated */
+
+ isapnpcfg->irq = dev->irq_resource[0].start;
+ isapnpcfg->dma = dev->dma_resource[0].start;
+ isapnpcfg->dma2 = dev->dma_resource[1].start;
+ isapnpcfg->io_base = dev->resource[0].start;
+ if (probe_cs4232(isapnpcfg,TRUE) == 0) {
+ printk(KERN_ERR "cs4232: ISA PnP card found, but not detected?\n");
+ return -ENODEV;
+ }
+ attach_cs4232(isapnpcfg);
+ pci_set_drvdata(dev,isapnpcfg);
+ return 0;
+}
+
static int __init init_cs4232(void)
{
#ifdef CONFIG_SOUND_WAVEFRONT_MODULE
@@ -347,6 +424,13 @@
if(synthio != -1)
printk(KERN_WARNING "cs4232: wavefront support not enabled in this driver.\n");
#endif
+ cfg.irq = -1;
+
+ if (isapnp &&
+ (isapnp_probe_devs(isapnp_cs4232_list, cs4232_isapnp_probe) > 0)
+ )
+ return 0;
+
if(io==-1||irq==-1||dma==-1)
{
printk(KERN_ERR "cs4232: Must set io, irq and dma.\n");
@@ -367,16 +451,27 @@
probe_cs4232_mpu(&cfg_mpu); /* Bug always returns 0 not OK -- AC */
}
- if (probe_cs4232(&cfg) == 0)
+ if (probe_cs4232(&cfg,FALSE) == 0)
return -ENODEV;
attach_cs4232(&cfg);
return 0;
}
+int cs4232_isapnp_remove(struct pci_dev *dev, const struct isapnp_device_id *id)
+{
+ struct address_info *cfg = (struct address_info*)pci_get_drvdata(dev);
+ if (cfg) unload_cs4232(cfg);
+ pci_set_drvdata(dev,NULL);
+ dev->deactivate(dev);
+ return 0;
+}
+
static void __exit cleanup_cs4232(void)
{
- unload_cs4232(&cfg); /* unloads MPU as well, if needed */
+ isapnp_probe_devs(isapnp_cs4232_list, cs4232_isapnp_remove);
+ if (cfg.irq != -1)
+ unload_cs4232(&cfg); /* Unloads global MPU as well, if needed */
}
module_init(init_cs4232);
@@ -387,6 +482,10 @@
{
/* io, irq, dma, dma2 mpuio, mpuirq*/
int ints[7];
+
+ /* If we have isapnp cards, no need for options */
+ if (isapnp_probe_devs(isapnp_cs4232_list, cs4232_isapnp_probe) > 0)
+ return 1;
str = get_options(str, ARRAY_SIZE(ints), ints);
Index: drivers/sound/cs4232.h
===================================================================
RCS file: /build/mm/work/repository/linux-mm/drivers/sound/cs4232.h,v
retrieving revision 1.1
diff -u -r1.1 cs4232.h
--- drivers/sound/cs4232.h 2001/04/17 14:50:30 1.1
+++ drivers/sound/cs4232.h 2001/06/01 14:44:47
@@ -5,7 +5,7 @@
*
*/
-int probe_cs4232 (struct address_info *hw_config);
+int probe_cs4232 (struct address_info *hw_config,int useisapnp);
void attach_cs4232 (struct address_info *hw_config);
int probe_cs4232_mpu (struct address_info *hw_config);
void attach_cs4232_mpu (struct address_info *hw_config);
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Thu Jun 07 2001 - 21:00:16 EST