[ALSA] cmipci: use FM/MIDI ports in PCI port space
Clemens Ladisch [Wed, 14 Sep 2005 06:33:46 +0000 (08:33 +0200)]
Modules: CMIPCI driver

If possible, use ports in the card's PCI port address range instead of
the legacy ports.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>

sound/pci/cmipci.c

index 1eb3315..316afb7 100644 (file)
@@ -446,9 +446,6 @@ struct snd_stru_cmipci {
        snd_kcontrol_t *mixer_res_ctl[CM_SAVED_MIXERS];
        int mixer_res_status[CM_SAVED_MIXERS];
 
-       opl3_t *opl3;
-       snd_hwdep_t *opl3hwdep;
-
        cmipci_pcm_t channel[2];        /* ch0 - DAC, ch1 - ADC or 2nd DAC */
 
        /* external MIDI */
@@ -2753,6 +2750,51 @@ static int snd_cmipci_dev_free(snd_device_t *device)
        return snd_cmipci_free(cm);
 }
 
+static int __devinit snd_cmipci_create_fm(cmipci_t *cm, long fm_port)
+{
+       long iosynth;
+       unsigned int val;
+       opl3_t *opl3;
+       int err;
+
+       /* first try FM regs in PCI port range */
+       iosynth = cm->iobase + CM_REG_FM_PCI;
+       err = snd_opl3_create(cm->card, iosynth, iosynth + 2,
+                             OPL3_HW_OPL3, 1, &opl3);
+       if (err < 0) {
+               /* then try legacy ports */
+               val = snd_cmipci_read(cm, CM_REG_LEGACY_CTRL) & ~CM_FMSEL_MASK;
+               iosynth = fm_port;
+               switch (iosynth) {
+               case 0x3E8: val |= CM_FMSEL_3E8; break;
+               case 0x3E0: val |= CM_FMSEL_3E0; break;
+               case 0x3C8: val |= CM_FMSEL_3C8; break;
+               case 0x388: val |= CM_FMSEL_388; break;
+               default:
+                           return 0;
+               }
+               snd_cmipci_write(cm, CM_REG_LEGACY_CTRL, val);
+               /* enable FM */
+               snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_FM_EN);
+
+               if (snd_opl3_create(cm->card, iosynth, iosynth + 2,
+                                   OPL3_HW_OPL3, 0, &opl3) < 0) {
+                       printk(KERN_ERR "cmipci: no OPL device at %#lx, "
+                              "skipping...\n", iosynth);
+                       /* disable FM */
+                       snd_cmipci_write(cm, CM_REG_LEGACY_CTRL,
+                                        val & ~CM_FMSEL_MASK);
+                       snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_FM_EN);
+                       return 0;
+               }
+       }
+       if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
+               printk(KERN_ERR "cmipci: cannot create OPL3 hwdep\n");
+               return err;
+       }
+       return 0;
+}
+
 static int __devinit snd_cmipci_create(snd_card_t *card, struct pci_dev *pci,
                                       int dev, cmipci_t **rcmipci)
 {
@@ -2762,8 +2804,8 @@ static int __devinit snd_cmipci_create(snd_card_t *card, struct pci_dev *pci,
                .dev_free =     snd_cmipci_dev_free,
        };
        unsigned int val = 0;
-       long iomidi = mpu_port[dev];
-       long iosynth = fm_port[dev];
+       long iomidi;
+       int integrated_midi;
        int pcm_index, pcm_spdif_index;
        static struct pci_device_id intel_82437vx[] = {
                { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437VX) },
@@ -2867,52 +2909,28 @@ static int __devinit snd_cmipci_create(snd_card_t *card, struct pci_dev *pci,
                return err;
        }
 
-       /* set MPU address */
-       switch (iomidi) {
-       case 0x320: val = CM_VMPU_320; break;
-       case 0x310: val = CM_VMPU_310; break;
-       case 0x300: val = CM_VMPU_300; break;
-       case 0x330: val = CM_VMPU_330; break;
-       default:
-               iomidi = 0; break;
-       }
-       if (iomidi > 0) {
-               snd_cmipci_write(cm, CM_REG_LEGACY_CTRL, val);
-               /* enable UART */
-               snd_cmipci_set_bit(cm, CM_REG_FUNCTRL1, CM_UART_EN);
-       }
-
-       /* set FM address */
-       val = snd_cmipci_read(cm, CM_REG_LEGACY_CTRL) & ~CM_FMSEL_MASK;
-       switch (iosynth) {
-       case 0x3E8: val |= CM_FMSEL_3E8; break;
-       case 0x3E0: val |= CM_FMSEL_3E0; break;
-       case 0x3C8: val |= CM_FMSEL_3C8; break;
-       case 0x388: val |= CM_FMSEL_388; break;
-       default:
-               iosynth = 0; break;
-       }
-       if (iosynth > 0) {
-               snd_cmipci_write(cm, CM_REG_LEGACY_CTRL, val);
-               /* enable FM */
-               snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_FM_EN);
-
-               if (snd_opl3_create(card, iosynth, iosynth + 2,
-                                   OPL3_HW_OPL3, 0, &cm->opl3) < 0) {
-                       printk(KERN_ERR "cmipci: no OPL device at 0x%lx, skipping...\n", iosynth);
-                       iosynth = 0;
-               } else {
-                       if ((err = snd_opl3_hwdep_new(cm->opl3, 0, 1, &cm->opl3hwdep)) < 0) {
-                               printk(KERN_ERR "cmipci: cannot create OPL3 hwdep\n");
-                               return err;
-                       }
+       integrated_midi = snd_cmipci_read_b(cm, CM_REG_MPU_PCI) != 0xff;
+       if (integrated_midi)
+               iomidi = cm->iobase + CM_REG_MPU_PCI;
+       else {
+               iomidi = mpu_port[dev];
+               switch (iomidi) {
+               case 0x320: val = CM_VMPU_320; break;
+               case 0x310: val = CM_VMPU_310; break;
+               case 0x300: val = CM_VMPU_300; break;
+               case 0x330: val = CM_VMPU_330; break;
+               default:
+                           iomidi = 0; break;
+               }
+               if (iomidi > 0) {
+                       snd_cmipci_write(cm, CM_REG_LEGACY_CTRL, val);
+                       /* enable UART */
+                       snd_cmipci_set_bit(cm, CM_REG_FUNCTRL1, CM_UART_EN);
                }
        }
-       if (! iosynth) {
-               /* disable FM */
-               snd_cmipci_write(cm, CM_REG_LEGACY_CTRL, val & ~CM_FMSEL_MASK);
-               snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_FM_EN);
-       }
+
+       if ((err = snd_cmipci_create_fm(cm, fm_port[dev])) < 0)
+               return err;
 
        /* reset mixer */
        snd_cmipci_mixer_write(cm, 0, 0);
@@ -2941,7 +2959,7 @@ static int __devinit snd_cmipci_create(snd_card_t *card, struct pci_dev *pci,
 
        if (iomidi > 0) {
                if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_CMIPCI,
-                                              iomidi, 0,
+                                              iomidi, integrated_midi,
                                               cm->irq, 0, &cm->rmidi)) < 0) {
                        printk(KERN_ERR "cmipci: no UART401 device at 0x%lx\n", iomidi);
                }