From 397b1dcc449082ce3f720c548da9c59db01cb739 Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Mon, 22 Sep 2008 09:04:43 +0200 Subject: ALSA: oxygen: add UART I/O functions Add functions to allow model drivers to communicate with external chips by doing I/O with the not-used-for-MIDI UART. Signed-off-by: Clemens Ladisch --- sound/pci/oxygen/oxygen.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'sound/pci/oxygen/oxygen.h') diff --git a/sound/pci/oxygen/oxygen.h b/sound/pci/oxygen/oxygen.h index f82a96290f72..19107c6307e5 100644 --- a/sound/pci/oxygen/oxygen.h +++ b/sound/pci/oxygen/oxygen.h @@ -79,6 +79,7 @@ struct oxygen_model { void (*update_dac_volume)(struct oxygen *chip); void (*update_dac_mute)(struct oxygen *chip); void (*gpio_changed)(struct oxygen *chip); + void (*uart_input)(struct oxygen *chip); void (*ac97_switch)(struct oxygen *chip, unsigned int reg, unsigned int mute); const unsigned int *dac_tlv; @@ -125,6 +126,8 @@ struct oxygen { __le32 _32[OXYGEN_IO_SIZE / 4]; } saved_registers; u16 saved_ac97_registers[2][0x40]; + unsigned int uart_input_count; + u8 uart_input[32]; struct oxygen_model model; }; @@ -174,6 +177,9 @@ void oxygen_write_ac97_masked(struct oxygen *chip, unsigned int codec, void oxygen_write_spi(struct oxygen *chip, u8 control, unsigned int data); void oxygen_write_i2c(struct oxygen *chip, u8 device, u8 map, u8 data); +void oxygen_reset_uart(struct oxygen *chip); +void oxygen_write_uart(struct oxygen *chip, u8 data); + static inline void oxygen_set_bits8(struct oxygen *chip, unsigned int reg, u8 value) { -- cgit v1.2.3-55-g7522