ALSA: opti93x: set MC indirect registers base from PnP data
The PnP data on the OPTI931 and OPTI933 contains io port
range for the MC indirect registers. Use the PnP range
instead of hardwired value 0xE0E.
Also, request region of MC indirect registers so it is
marked as used to other drivers (this was missing previously).
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/isa/opti9xx/opti92x-ad1848.c b/sound/isa/opti9xx/opti92x-ad1848.c
index d08c389..8c88401 100644
--- a/sound/isa/opti9xx/opti92x-ad1848.c
+++ b/sound/isa/opti9xx/opti92x-ad1848.c
@@ -135,6 +135,8 @@
unsigned long mc_base_size;
#ifdef OPTi93X
unsigned long mc_indir_index;
+ unsigned long mc_indir_size;
+ struct resource *res_mc_indir;
struct snd_wss *codec;
#endif /* OPTi93X */
unsigned long pwd_reg;
@@ -231,7 +233,10 @@
case OPTi9XX_HW_82C931:
case OPTi9XX_HW_82C933:
chip->mc_base = (hardware == OPTi9XX_HW_82C930) ? 0xf8f : 0xf8d;
- chip->mc_indir_index = 0xe0e;
+ if (!chip->mc_indir_index) {
+ chip->mc_indir_index = 0xe0e;
+ chip->mc_indir_size = 2;
+ }
chip->password = 0xe4;
chip->pwd_reg = 0;
break;
@@ -560,6 +565,48 @@
#endif /* OPTi93X */
+static int __devinit snd_opti9xx_read_check(struct snd_opti9xx *chip)
+{
+ unsigned char value;
+#ifdef OPTi93X
+ unsigned long flags;
+#endif
+
+ chip->res_mc_base = request_region(chip->mc_base, chip->mc_base_size,
+ "OPTi9xx MC");
+ if (chip->res_mc_base == NULL)
+ return -EBUSY;
+#ifndef OPTi93X
+ value = snd_opti9xx_read(chip, OPTi9XX_MC_REG(1));
+ if (value != 0xff && value != inb(chip->mc_base + OPTi9XX_MC_REG(1)))
+ if (value == snd_opti9xx_read(chip, OPTi9XX_MC_REG(1)))
+ return 0;
+#else /* OPTi93X */
+ chip->res_mc_indir = request_region(chip->mc_indir_index,
+ chip->mc_indir_size,
+ "OPTi93x MC");
+ if (chip->res_mc_indir == NULL)
+ return -EBUSY;
+
+ spin_lock_irqsave(&chip->lock, flags);
+ outb(chip->password, chip->mc_base + chip->pwd_reg);
+ outb(((chip->mc_indir_index & 0x1f0) >> 4), chip->mc_base);
+ spin_unlock_irqrestore(&chip->lock, flags);
+
+ value = snd_opti9xx_read(chip, OPTi9XX_MC_REG(7));
+ snd_opti9xx_write(chip, OPTi9XX_MC_REG(7), 0xff - value);
+ if (snd_opti9xx_read(chip, OPTi9XX_MC_REG(7)) == 0xff - value)
+ return 0;
+
+ release_and_free_resource(chip->res_mc_indir);
+ chip->res_mc_indir = NULL;
+#endif /* OPTi93X */
+ release_and_free_resource(chip->res_mc_base);
+ chip->res_mc_base = NULL;
+
+ return -ENODEV;
+}
+
static int __devinit snd_card_opti9xx_detect(struct snd_card *card,
struct snd_opti9xx *chip)
{
@@ -567,50 +614,20 @@
#ifndef OPTi93X
for (i = OPTi9XX_HW_82C928; i < OPTi9XX_HW_82C930; i++) {
- unsigned char value;
-
- if ((err = snd_opti9xx_init(chip, i)) < 0)
- return err;
-
- if ((chip->res_mc_base = request_region(chip->mc_base, chip->mc_base_size, "OPTi9xx MC")) == NULL)
- continue;
-
- value = snd_opti9xx_read(chip, OPTi9XX_MC_REG(1));
- if ((value != 0xff) && (value != inb(chip->mc_base + 1)))
- if (value == snd_opti9xx_read(chip, OPTi9XX_MC_REG(1)))
- return 1;
-
- release_and_free_resource(chip->res_mc_base);
- chip->res_mc_base = NULL;
-
- }
-#else /* OPTi93X */
+#else
for (i = OPTi9XX_HW_82C931; i >= OPTi9XX_HW_82C930; i--) {
- unsigned long flags;
- unsigned char value;
-
- if ((err = snd_opti9xx_init(chip, i)) < 0)
+#endif
+ err = snd_opti9xx_init(chip, i);
+ if (err < 0)
return err;
- if ((chip->res_mc_base = request_region(chip->mc_base, chip->mc_base_size, "OPTi9xx MC")) == NULL)
- continue;
-
- spin_lock_irqsave(&chip->lock, flags);
- outb(chip->password, chip->mc_base + chip->pwd_reg);
- outb(((chip->mc_indir_index & (1 << 8)) >> 4) |
- ((chip->mc_indir_index & 0xf0) >> 4), chip->mc_base);
- spin_unlock_irqrestore(&chip->lock, flags);
-
- value = snd_opti9xx_read(chip, OPTi9XX_MC_REG(7));
- snd_opti9xx_write(chip, OPTi9XX_MC_REG(7), 0xff - value);
- if (snd_opti9xx_read(chip, OPTi9XX_MC_REG(7)) == 0xff - value)
+ err = snd_opti9xx_read_check(chip);
+ if (err == 0)
return 1;
-
- release_and_free_resource(chip->res_mc_base);
- chip->res_mc_base = NULL;
+#ifdef OPTi93X
+ chip->mc_indir_index = 0;
+#endif
}
-#endif /* OPTi93X */
-
return -ENODEV;
}
@@ -639,6 +656,8 @@
#ifdef OPTi93X
port = pnp_port_start(pdev, 0) - 4;
fm_port = pnp_port_start(pdev, 1) + 8;
+ chip->mc_indir_index = pnp_port_start(pdev, 3) + 2;
+ chip->mc_indir_size = pnp_port_len(pdev, 3) - 2;
#else
if (pid->driver_data != 0x0924)
port = pnp_port_start(pdev, 1);
@@ -669,7 +688,7 @@
static void snd_card_opti9xx_free(struct snd_card *card)
{
struct snd_opti9xx *chip = card->private_data;
-
+
if (chip) {
#ifdef OPTi93X
struct snd_wss *codec = chip->codec;
@@ -677,6 +696,7 @@
disable_irq(codec->irq);
free_irq(codec->irq, codec);
}
+ release_and_free_resource(chip->res_mc_indir);
#endif
release_and_free_resource(chip->res_mc_base);
}
@@ -696,11 +716,6 @@
struct snd_rawmidi *rmidi;
struct snd_hwdep *synth;
- if (! chip->res_mc_base &&
- (chip->res_mc_base = request_region(chip->mc_base, chip->mc_base_size,
- "OPTi9xx MC")) == NULL)
- return -ENOMEM;
-
#if defined(CS4231) || defined(OPTi93X)
xdma2 = dma2;
#else
@@ -954,6 +969,13 @@
}
if (hw <= OPTi9XX_HW_82C930)
chip->mc_base -= 0x80;
+
+ error = snd_opti9xx_read_check(chip);
+ if (error) {
+ snd_printk(KERN_ERR "OPTI chip not found\n");
+ snd_card_free(card);
+ return error;
+ }
snd_card_set_dev(card, &pcard->card->dev);
if ((error = snd_opti9xx_probe(card)) < 0) {
snd_card_free(card);