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Lines 44-52
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void ad198x_patch(struct ac97_info* codec) |
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void ad198x_patch(struct ac97_info* codec) |
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{ |
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{ |
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/* |
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* AD198x series have 2 pairs of analog output: |
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* SURR_OUT/HP_OUT(surround or headphone) and LINE_OUT. |
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* |
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* Since SURR_OUT/HP_OUT output pins are equipped with power amps, |
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* retail machines often wire these to headphones jacks and/or |
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* internal speakers. |
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* This also means "mixer phout" will adjust speaker volume |
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* and "mixer vol" adjust lineout level, _independently_. |
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* |
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* (Linux has flags to swap vol/phout, and FreeBSD can do similar |
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* by mix_setrealdev() and gang them with mix_setparentchild()) |
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* |
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* AD198x register 0x76 |
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* 0x0400: select mixer for SURR_OUT/HP_OUT output pins (default surround DAC) |
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* 0x0020: select surround DAC for LINE_OUT output pins (default mixer) |
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* |
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* Selecting surround DAC for any output will yield "no sound", |
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* until FreeBSD supports surround DAC handling. |
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* |
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* Previous ad198x_patch() had set 0x0420, but 0x0400 seems to be |
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* better for all instances. At least you have mixer output |
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* for all output pins. |
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* The value is valid for all AD1888, AD1980, AD1985 and AD1986. |
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* (AD1986, having independent SURR_OUT and HP_OUT, will select |
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* mixer output for SURR_OUT by setting 0x0400 bit.) |
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* |
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* Fujitsu C610 seems to wire SURR_OUT/HP_OUT for |
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* internal speaker, and LINE_OUT for lineout AND headphone jacks; |
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* by setting previous 0x0420, internal speaker works but |
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* no output for either jacks. |
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* ASUS A9T may had been working by not setting the register because |
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* it only wired LINE_OUT. |
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*/ |
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switch (ac97_getsubvendor(codec)) { |
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switch (ac97_getsubvendor(codec)) { |
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case 0x11931043: /* Not for ASUS A9T (probably else too). */ |
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case 0x11931043: /* Not for ASUS A9T (probably else too). */ |
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break; |
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break; |
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case 0x122f10cf: /* Fujitsu C610 (perhaps for others) */ |
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ac97_wrcd(codec, 0x76, ac97_rdcd(codec, 0x76) | 0x0400); |
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break; |
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default: |
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default: |
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ac97_wrcd(codec, 0x76, ac97_rdcd(codec, 0x76) | 0x0420); |
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ac97_wrcd(codec, 0x76, ac97_rdcd(codec, 0x76) | 0x0420); |
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break; |
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break; |