[ALSA] emu10k1: Add module option uint subsystem.

EMU10K1/EMU10K2 driver
It allows the user to force the snd-emu10k1 module to think the user
has a particular sound card. Useful if their particular sound card
is not yet recognised.

Signed-off-by: James Courtier-Dutton <James@superbug.co.uk>

diff --git a/include/sound/emu10k1.h b/include/sound/emu10k1.h
index c50b919..c2ef3f0 100644 (file)
--- a/include/sound/emu10k1.h
+++ b/include/sound/emu10k1.h
@@ -1167,6 +1167,7 @@ int snd_emu10k1_create(snd_card_t * card,
                       unsigned short extout_mask,
                       long max_cache_bytes,
                       int enable_ir,
+                      uint subsystem,
                       emu10k1_t ** remu);
 
 int snd_emu10k1_pcm(emu10k1_t * emu, int device, snd_pcm_t ** rpcm);

diff --git a/sound/pci/emu10k1/emu10k1.c b/sound/pci/emu10k1/emu10k1.c
index 2f96b2f..b17142c 100644 (file)
--- a/sound/pci/emu10k1/emu10k1.c
+++ b/sound/pci/emu10k1/emu10k1.c
@@ -52,6 +52,7 @@ static int seq_ports[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 4};
 static int max_synth_voices[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 64};
 static int max_buffer_size[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 128};
 static int enable_ir[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 0};
+static uint subsystem[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 0}; /* Force card subsystem model */
 
 module_param_array(index, int, NULL, 0444);
 MODULE_PARM_DESC(index, "Index value for the EMU10K1 soundcard.");
@@ -71,7 +72,8 @@ module_param_array(max_buffer_size, int, NULL, 0444);
 MODULE_PARM_DESC(max_buffer_size, "Maximum sample buffer size in MB.");
 module_param_array(enable_ir, bool, NULL, 0444);
 MODULE_PARM_DESC(enable_ir, "Enable IR.");
-
+module_param_array(subsystem, uint, NULL, 0444);
+MODULE_PARM_DESC(subsystem, "Force card subsystem model.");
 /*
  * Class 0401: 1102:0008 (rev 00) Subsystem: 1102:1001 -> Audigy2 Value  Model:SB0400
  */
@@ -122,7 +124,7 @@ static int __devinit snd_card_emu10k1_probe(struct pci_dev *pci,
                max_buffer_size[dev] = 1024;
        if ((err = snd_emu10k1_create(card, pci, extin[dev], extout[dev],
                                      (long)max_buffer_size[dev] * 1024 * 1024,
-                                     enable_ir[dev],
+                                     enable_ir[dev], subsystem[dev],
                                      &emu)) < 0) {
                snd_card_free(card);
                return err;

diff --git a/sound/pci/emu10k1/emu10k1_main.c b/sound/pci/emu10k1/emu10k1_main.c
index 8bc9bc1..4ced4b0 100644 (file)
--- a/sound/pci/emu10k1/emu10k1_main.c
+++ b/sound/pci/emu10k1/emu10k1_main.c
@@ -832,6 +832,7 @@ int __devinit snd_emu10k1_create(snd_card_t * card,
                       unsigned short extout_mask,
                       long max_cache_bytes,
                       int enable_ir,
+                      uint subsystem,
                       emu10k1_t ** remu)
 {
        emu10k1_t *emu;
@@ -877,10 +878,16 @@ int __devinit snd_emu10k1_create(snd_card_t * card,
 
        for (c = emu_chip_details; c->vendor; c++) {
                if (c->vendor == pci->vendor && c->device == pci->device) {
-                       if (c->subsystem && c->subsystem != emu->serial)
-                               continue;
-                       if (c->revision && c->revision != emu->revision)
-                               continue;
+                       if (subsystem) {
+                               if (c->subsystem && (c->subsystem == subsystem) ) {
+                                       break;
+                               } else continue;
+                       } else {
+                               if (c->subsystem && (c->subsystem != emu->serial) )
+                                       continue;
+                               if (c->revision && c->revision != emu->revision)
+                                       continue;
+                       }
                        break;
                }
        }
@@ -891,10 +898,14 @@ int __devinit snd_emu10k1_create(snd_card_t * card,
                return -ENOENT;
        }
        emu->card_capabilities = c;
-       if (c->subsystem != 0)
+       if (c->subsystem && !subsystem)
                snd_printdd("Sound card name=%s\n", c->name);
-       else
-               snd_printdd("Sound card name=%s, vendor=0x%x, device=0x%x, subsystem=0x%x\n", c->name, pci->vendor, pci->device, emu->serial);
+       else if (subsystem) 
+               snd_printdd("Sound card name=%s, vendor=0x%x, device=0x%x, subsystem=0x%x. Forced to subsytem=0x%x\n",
+                       c->name, pci->vendor, pci->device, emu->serial, c->subsystem);
+       else 
+               snd_printdd("Sound card name=%s, vendor=0x%x, device=0x%x, subsystem=0x%x.\n",
+                       c->name, pci->vendor, pci->device, emu->serial);
        
        if (!*card->id && c->id) {
                int i, n = 0;