ALSA

  - DEVFS cleanup - removal of compatibility code for 2.2 and 2.4 kernels
  - fixed sgalaxy driver (save_flags/cli/restore_flags removal)
  - USB Audio driver
    - added the missing dev_set_drvdata() for 2.5 API
    - simplified the conexistence of old and new USB APIs
    - don't skip the active capture urbs
    - added the debug print for active capture urbs
    - don't change runtime->rate even if the current rate is not same
    - check the bandwidth for urbs (for tests only, now commented out)

include/sound/version.h

 /* include/version.h.  Generated automatically by configure.  */
 #define CONFIG_SND_VERSION "0.9.0rc3"
-#define CONFIG_SND_DATE " (Tue Oct 01 14:40:23 2002 UTC)"
+#define CONFIG_SND_DATE " (Fri Oct 04 13:09:13 2002 UTC)"

sound/core/info.c

@@ -960,7 +960,6 @@ void snd_info_free_device(snd_info_entry_t * entry)
 {
 #ifdef CONFIG_DEVFS_FS
 	char dname[32];
-	devfs_handle_t master;
 #endif
 
 	snd_runtime_check(entry, return);
@@ -970,12 +969,7 @@ void snd_info_free_device(snd_info_entry_t * entry)
 #ifdef CONFIG_DEVFS_FS
 	if (entry->p && strncmp(entry->name, "controlC", 8)) {
 		sprintf(dname, "snd/%s", entry->name);
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,3,0)
-		master = devfs_find_handle(NULL, dname, strlen(dname), 0, 0, DEVFS_SPECIAL_CHR, 0);
-		devfs_unregister(master);
-#else
 		devfs_find_and_unregister(NULL, dname, 0, 0, DEVFS_SPECIAL_CHR, 0);
-#endif
 	}
 #endif
 	snd_info_free_entry(entry);

sound/core/sound.c

@@ -358,21 +358,12 @@ static int __init alsa_sound_init(void)
 static void __exit alsa_sound_exit(void)
 {
 #ifdef CONFIG_DEVFS_FS
-	devfs_handle_t master;
 	char controlname[24];
 	short controlnum;
 
 	for (controlnum = 0; controlnum < snd_cards_limit; controlnum++) {
 		sprintf(controlname, "snd/controlC%d", controlnum);
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,3,0)
-		master = devfs_find_handle(NULL, controlname, strlen(controlname), 0, 0, DEVFS_SPECIAL_CHR, 0);
-		devfs_unregister(master);
-#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-		master = devfs_find_handle(NULL, controlname, 0, 0, DEVFS_SPECIAL_CHR, 0);
-		devfs_unregister(master);
-#else
 		devfs_find_and_unregister(NULL, controlname, 0, 0, DEVFS_SPECIAL_CHR, 0);
-#endif
 	}
 #endif
 	

sound/isa/sgalaxy.c

@@ -26,6 +26,7 @@
 #include <linux/init.h>
 #include <linux/delay.h>
 #include <linux/time.h>
+#include <linux/irq.h>
 #include <sound/core.h>
 #include <sound/sb.h>
 #include <sound/ad1848.h>
@@ -110,6 +111,10 @@ static int __init snd_sgalaxy_sbdsp_command(unsigned long port, unsigned char va
 	return 0;
 }
 
+static void snd_sgalaxy_dummy_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+}
+
 static int __init snd_sgalaxy_setup_wss(unsigned long port, int irq, int dma)
 {
 	static int interrupt_bits[] = {-1, -1, -1, -1, -1, -1, -1, 0x08, -1, 
@@ -117,8 +122,6 @@ static int __init snd_sgalaxy_setup_wss(unsigned long port, int irq, int dma)
 	static int dma_bits[] = {1, 2, 0, 3};
 	int tmp, tmp1;
 
-	unsigned long flags;
-
 	if ((tmp = inb(port + 3)) == 0xff)
 	{
 		snd_printdd("I/O address dead (0x%lx)\n", port);
@@ -140,20 +143,20 @@ static int __init snd_sgalaxy_setup_wss(unsigned long port, int irq, int dma)
 	snd_printdd("sgalaxy - setting up IRQ/DMA for WSS\n");
 #endif
 
-	save_flags(flags);
-	cli();
-
         /* initialize IRQ for WSS codec */
         tmp = interrupt_bits[irq % 16];
-        if (tmp < 0) {
-		restore_flags(flags);
+        if (tmp < 0)
                 return -EINVAL;
-	}
+
+	if (request_irq(irq, snd_sgalaxy_dummy_interrupt, SA_INTERRUPT, "sgalaxy", NULL))
+		return -EIO;
+
         outb(tmp | 0x40, port);
         tmp1 = dma_bits[dma % 4];
         outb(tmp | tmp1, port);
 
-	restore_flags(flags);
+	free_irq(irq, NULL);
+
 	return 0;
 }
 

sound/usb/usbaudio.c

@@ -284,6 +284,16 @@ static int prepare_capture_urb(snd_usb_substream_t *subs,
 	urb->transfer_buffer = ctx->buf;
 	urb->transfer_buffer_length = offs;
 	urb->interval = 1;
+#if 0 // for check
+	if (! urb->bandwidth) {
+		int bustime;
+		bustime = usb_check_bandwidth(urb->dev, urb);
+		if (bustime < 0) 
+			return bustime;
+		printk("urb %d: bandwidth = %d (packets = %d)\n", ctx->index, bustime, urb->number_of_packets);
+		usb_claim_bandwidth(urb->dev, urb, bustime, 1);
+	}
+#endif // for check
 	return 0;
 }
 
@@ -305,8 +315,10 @@ static int retire_capture_urb(snd_usb_substream_t *subs,
 
 	for (i = 0; i < urb->number_of_packets; i++) {
 		cp = (unsigned char *)urb->transfer_buffer + urb->iso_frame_desc[i].offset;
-		if (urb->iso_frame_desc[i].status) /* active? hmm, skip this */
-			continue;
+		if (urb->iso_frame_desc[i].status) {
+			snd_printd(KERN_ERR "frame %d active: %d\n", i, urb->iso_frame_desc[i].status);
+			// continue;
+		}
 		len = urb->iso_frame_desc[i].actual_length / stride;
 		if (! len)
 			continue;
@@ -1009,6 +1021,7 @@ static int set_format(snd_usb_substream_t *subs, snd_pcm_runtime_t *runtime)
 	}
 	/* if endpoint has sampling rate control, set it */
 	if (fmt->attributes & EP_CS_ATTR_SAMPLE_RATE) {
+		int crate;
 		data[0] = runtime->rate;
 		data[1] = runtime->rate >> 8;
 		data[2] = runtime->rate >> 16;
@@ -1026,8 +1039,11 @@ static int set_format(snd_usb_substream_t *subs, snd_pcm_runtime_t *runtime)
 				   dev->devnum, subs->interface, fmt->altsetting, ep);
 			return err;
 		}
-		runtime->rate = data[0] | (data[1] << 8) | (data[2] << 16);
-		// printk("ok, getting back rate to %d\n", runtime->rate);
+		crate = data[0] | (data[1] << 8) | (data[2] << 16);
+		if (crate != runtime->rate) {
+			snd_printd(KERN_WARNING "current rate %d is different from the runtime rate %d\n", crate, runtime->rate);
+			// runtime->rate = crate;
+		}
 	}
 	/* always fill max packet size */
 	if (fmt->attributes & EP_CS_ATTR_FILL_MAX)
@@ -1292,14 +1308,16 @@ void *snd_usb_find_csint_desc(void *buffer, int buflen, void *after, u8 dsubtype
  * entry point for linux usb interface
  */
 
-#ifndef OLD_USB
+static void * _usb_audio_probe(struct usb_device *dev, unsigned int ifnum,
+			      const struct usb_device_id *id);
+static void _usb_audio_disconnect(struct usb_device *dev, void *ptr);
+#ifdef OLD_USB
+#define usb_audio_probe		_usb_audio_probe
+#define usb_audio_disconnect	_usb_audio_disconnect
+#else
 static int usb_audio_probe(struct usb_interface *intf,
 			   const struct usb_device_id *id);
 static void usb_audio_disconnect(struct usb_interface *intf);
-#else
-static void * usb_audio_probe(usb_device *dev, unsigned int ifnum,
-			      const struct usb_device_id *id);
-static void usb_audio_disconnect(struct usb_device *dev, void *ptr);
 #endif
 
 static struct usb_device_id usb_audio_ids [] = {
@@ -2050,18 +2068,9 @@ static int alloc_desc_buffer(struct usb_device *dev, int index, unsigned char **
  * only at the first time.  the successive calls of this function will
  * append the pcm interface to the corresponding card.
  */
-#ifndef OLD_USB
-static int usb_audio_probe(struct usb_interface *intf,
-			   const struct usb_device_id *id)
-#else
-static void *usb_audio_probe(struct usb_device *dev, unsigned int ifnum,
+static void *_usb_audio_probe(struct usb_device *dev, unsigned int ifnum,
 			     const struct usb_device_id *id)
-#endif
 {
-#ifndef OLD_USB
-	struct usb_device *dev = interface_to_usbdev(intf);
-	int ifnum = intf->altsetting->bInterfaceNumber;
-#endif
 	struct usb_config_descriptor *config = dev->actconfig;	
 	const snd_usb_audio_quirk_t *quirk = (const snd_usb_audio_quirk_t *)id->driver_info;
 	unsigned char *buffer;
@@ -2143,37 +2152,21 @@ static void *usb_audio_probe(struct usb_device *dev, unsigned int ifnum,
 	chip->num_interfaces++;
 	up(&register_mutex);
 	kfree(buffer);
-#ifndef OLD_USB
-	return 0;
-#else
 	return chip;
-#endif
 
  __error:
 	up(&register_mutex);
 	kfree(buffer);
  __err_val:
-#ifndef OLD_USB
-	return -EIO;
-#else
 	return NULL;
-#endif
 }
 
-
 /*
  * we need to take care of counter, since disconnection can be called also
  * many times as well as usb_audio_probe(). 
  */
-#ifndef OLD_USB
-static void usb_audio_disconnect(struct usb_interface *intf)
-#else
-static void usb_audio_disconnect(struct usb_device *dev, void *ptr)
-#endif
+static void _usb_audio_disconnect(struct usb_device *dev, void *ptr)
 {
-#ifndef OLD_USB
-	void *ptr = dev_get_drvdata(&intf->dev);
-#endif
 	snd_usb_audio_t *chip;
 
 	if (ptr == (void *)-1)
@@ -2185,6 +2178,34 @@ static void usb_audio_disconnect(struct usb_device *dev, void *ptr)
 		snd_card_free(chip->card);
 }
 
+
+#ifndef OLD_USB
+/*
+ * new 2.5 USB kernel API
+ */
+
+static int usb_audio_probe(struct usb_interface *intf,
+			   const struct usb_device_id *id)
+{
+	void *chip;
+	chip = _usb_audio_probe(interface_to_usbdev(intf),
+				intf->altsetting->bInterfaceNumber, id);
+	if (chip) {
+		dev_set_drvdata(&intf->dev, chip);
+		return 0;
+	} else
+		return -EIO;
+}
+
+static void usb_audio_disconnect(struct usb_interface *intf)
+{
+	_usb_audio_disconnect(interface_to_usbdev(intf),
+			      dev_get_drvdata(&intf->dev));
+}
+#endif
+
+
+
 static int __init snd_usb_audio_init(void)
 {
 	usb_register(&usb_audio_driver);