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ASUS TX300 has a built-in speaker in the tablet part and in the dock part, and the tablet speaker is supposed to be unused while the machine is docked. The current HD-audio driver, however, doesn't support the dock speaker, partly because BIOS doesn't set up the pin for the corresponding output. But, not only the missing pin config, also the missing unsol event handling is another issue. Otherwise the automatic switching via dock/undock won't work. Through debugging sessions, we found out that the dock speaker pin is NID 0x1b, and it generates an unsol event at docking/undocking, the docking state can be inquired via the normal pin detection verb. Also, it's turned out that GPIO 2 is needed as an amp. So, all materials are ready to cook. This patch provides the basic dock speaker support with TX300: - The dock speaker is turned on/off via "Dock Speaker" mixer mute. - The dock speaker is automatically muted when docked. This is independently from the mixer mute switch, just like the headphone auto-mute function. The implementation is a bit tricky. Since we want to handle it as a secondary speaker, we set it up a pin as a speaker with a jack detection. Then, the fixup function registers the own unsol callback for this pin because the standard automute can't handle the thing like a "speaker jack". In the own automute hook, we apply the mute of the tablet speaker in addition by checking the dock state. Also, the speaker control names are slightly shuffled because the generic parser doesn't give good names but blindly assumes a bass speaker as a secondary speaker. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=59791 Signed-off-by: Takashi Iwai <tiwai@suse.de> |
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| .. | ||
| aoa | ||
| arm | ||
| atmel | ||
| core | ||
| drivers | ||
| firewire | ||
| i2c | ||
| isa | ||
| mips | ||
| oss | ||
| parisc | ||
| pci | ||
| pcmcia | ||
| ppc | ||
| sh | ||
| soc | ||
| sparc | ||
| spi | ||
| synth | ||
| usb | ||
| ac97_bus.c | ||
| Kconfig | ||
| last.c | ||
| Makefile | ||
| sound_core.c | ||
| sound_firmware.c | ||