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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-11 09:16:54 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-11 09:16:54 -0700 |
| commit | d3570a5a7b8d0604fa012129f92637dc1534f62c (patch) | |
| tree | 15d290595c363a2bdd4f4d6b3a2f7433e6e48f6d /sound/pci/oxygen/oxygen_io.c | |
| parent | 37d9869ed928268409b48f52c57449918c0fd307 (diff) | |
| parent | 72474be62d6ec2e0337ff01ecbd737f9c5c242c7 (diff) | |
Merge branch 'for-linus' of git://git.alsa-project.org/alsa-kernel
* 'for-linus' of git://git.alsa-project.org/alsa-kernel: (258 commits)
ALSA: hda: VREF powerdown for headphones
ALSA: hda: STAC_HP_M4
ALSA: ASoC: Check for machine type in GTA01 machine driver
ALSA: mtpav - Fix race in probe
ALSA: usb-audio: dynamic detection of MIDI interfaces in uaxx-quirk
ALSA: Add a note on dependency of RTC stuff
ALSA: ASoC: add new param mux to dapm_mux_update_power
ALSA: Increase components array size
ALSA: ASoC: Correct inverted Mic PGA Switch control in wm8510 driver
ALSA: hda: comment typo fix
ALSA: hda: comment typo fix
ALSA: hda - Fix PCI SSID for ASROCK K18N78FullHD-hSLI
ALSA: snd-usb-audio: support for Edirol UA-4FX device
ALSA: usb - Fix possible Oops at USB-MIDI disconnection
ALSA: hda - Fix another ALC889A (rev 0x100101)
ALSA: hda: add more board-specific information for Realtek ALC662 rev1
ALSA: Correct Vladimir Barinov's e-mail address
ALSA: cs46xx: Add PCI IDs for TerraTec and Hercules cards
ALSA: hda: SPDIF stream muting support
ALSA: hda: appletv support
...
Diffstat (limited to 'sound/pci/oxygen/oxygen_io.c')
| -rw-r--r-- | sound/pci/oxygen/oxygen_io.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/sound/pci/oxygen/oxygen_io.c b/sound/pci/oxygen/oxygen_io.c index 83f135f80df..3126c4b403d 100644 --- a/sound/pci/oxygen/oxygen_io.c +++ b/sound/pci/oxygen/oxygen_io.c @@ -20,6 +20,7 @@ #include <linux/delay.h> #include <linux/sched.h> #include <sound/core.h> +#include <sound/mpu401.h> #include <asm/io.h> #include "oxygen.h" @@ -232,3 +233,24 @@ void oxygen_write_i2c(struct oxygen *chip, u8 device, u8 map, u8 data) device | OXYGEN_2WIRE_DIR_WRITE); } EXPORT_SYMBOL(oxygen_write_i2c); + +static void _write_uart(struct oxygen *chip, unsigned int port, u8 data) +{ + if (oxygen_read8(chip, OXYGEN_MPU401 + 1) & MPU401_TX_FULL) + msleep(1); + oxygen_write8(chip, OXYGEN_MPU401 + port, data); +} + +void oxygen_reset_uart(struct oxygen *chip) +{ + _write_uart(chip, 1, MPU401_RESET); + msleep(1); /* wait for ACK */ + _write_uart(chip, 1, MPU401_ENTER_UART); +} +EXPORT_SYMBOL(oxygen_reset_uart); + +void oxygen_write_uart(struct oxygen *chip, u8 data) +{ + _write_uart(chip, 0, data); +} +EXPORT_SYMBOL(oxygen_write_uart); |