diff options
Diffstat (limited to 'sound/isa/cs423x/cs4236_lib.c')
| -rw-r--r-- | sound/isa/cs423x/cs4236_lib.c | 50 |
1 files changed, 31 insertions, 19 deletions
diff --git a/sound/isa/cs423x/cs4236_lib.c b/sound/isa/cs423x/cs4236_lib.c index 38835f31298b..1b1ad1cad328 100644 --- a/sound/isa/cs423x/cs4236_lib.c +++ b/sound/isa/cs423x/cs4236_lib.c @@ -87,6 +87,7 @@ #include <sound/core.h> #include <sound/wss.h> #include <sound/asoundef.h> +#include <sound/initval.h> /* * @@ -264,7 +265,10 @@ static void snd_cs4236_resume(struct snd_wss *chip) } #endif /* CONFIG_PM */ - +/* + * This function does no fail if the chip is not CS4236B or compatible. + * It just an equivalent to the snd_wss_create() then. + */ int snd_cs4236_create(struct snd_card *card, unsigned long port, unsigned long cport, @@ -281,21 +285,17 @@ int snd_cs4236_create(struct snd_card *card, *rchip = NULL; if (hardware == WSS_HW_DETECT) hardware = WSS_HW_DETECT3; - if (cport < 0x100) { - snd_printk(KERN_ERR "please, specify control port " - "for CS4236+ chips\n"); - return -ENODEV; - } + err = snd_wss_create(card, port, cport, irq, dma1, dma2, hardware, hwshare, &chip); if (err < 0) return err; - if (!(chip->hardware & WSS_HW_CS4236B_MASK)) { - snd_printk(KERN_ERR "CS4236+: MODE3 and extended registers " - "not available, hardware=0x%x\n", chip->hardware); - snd_device_free(card, chip); - return -ENODEV; + if ((chip->hardware & WSS_HW_CS4236B_MASK) == 0) { + snd_printd("chip is not CS4236+, hardware=0x%x\n", + chip->hardware); + *rchip = chip; + return 0; } #if 0 { @@ -308,9 +308,16 @@ int snd_cs4236_create(struct snd_card *card, idx, snd_cs4236_ctrl_in(chip, idx)); } #endif + if (cport < 0x100 || cport == SNDRV_AUTO_PORT) { + snd_printk(KERN_ERR "please, specify control port " + "for CS4236+ chips\n"); + snd_device_free(card, chip); + return -ENODEV; + } ver1 = snd_cs4236_ctrl_in(chip, 1); ver2 = snd_cs4236_ext_in(chip, CS4236_VERSION); - snd_printdd("CS4236: [0x%lx] C1 (version) = 0x%x, ext = 0x%x\n", cport, ver1, ver2); + snd_printdd("CS4236: [0x%lx] C1 (version) = 0x%x, ext = 0x%x\n", + cport, ver1, ver2); if (ver1 != ver2) { snd_printk(KERN_ERR "CS4236+ chip detected, but " "control port 0x%lx is not valid\n", cport); @@ -321,13 +328,17 @@ int snd_cs4236_create(struct snd_card *card, snd_cs4236_ctrl_out(chip, 2, 0xff); snd_cs4236_ctrl_out(chip, 3, 0x00); snd_cs4236_ctrl_out(chip, 4, 0x80); - snd_cs4236_ctrl_out(chip, 5, ((IEC958_AES1_CON_PCM_CODER & 3) << 6) | IEC958_AES0_CON_EMPHASIS_NONE); + reg = ((IEC958_AES1_CON_PCM_CODER & 3) << 6) | + IEC958_AES0_CON_EMPHASIS_NONE; + snd_cs4236_ctrl_out(chip, 5, reg); snd_cs4236_ctrl_out(chip, 6, IEC958_AES1_CON_PCM_CODER >> 2); snd_cs4236_ctrl_out(chip, 7, 0x00); - /* 0x8c for C8 is valid for Turtle Beach Malibu - the IEC-958 output */ - /* is working with this setup, other hardware should have */ - /* different signal paths and this value should be selectable */ - /* in the future */ + /* + * 0x8c for C8 is valid for Turtle Beach Malibu - the IEC-958 + * output is working with this setup, other hardware should + * have different signal paths and this value should be + * selectable in the future + */ snd_cs4236_ctrl_out(chip, 8, 0x8c); chip->rate_constraint = snd_cs4236_xrate; chip->set_playback_format = snd_cs4236_playback_format; @@ -339,9 +350,10 @@ int snd_cs4236_create(struct snd_card *card, /* initialize extended registers */ for (reg = 0; reg < sizeof(snd_cs4236_ext_map); reg++) - snd_cs4236_ext_out(chip, CS4236_I23VAL(reg), snd_cs4236_ext_map[reg]); + snd_cs4236_ext_out(chip, CS4236_I23VAL(reg), + snd_cs4236_ext_map[reg]); - /* initialize compatible but more featured registers */ + /* initialize compatible but more featured registers */ snd_wss_out(chip, CS4231_LEFT_INPUT, 0x40); snd_wss_out(chip, CS4231_RIGHT_INPUT, 0x40); snd_wss_out(chip, CS4231_AUX1_LEFT_INPUT, 0xff); |