qemu/hw/pl041.h
Mathieu Sonet d028d02d0c Add AACI audio playback support to the ARM Versatile/PB platform
This driver emulates the ARM AACI interface (PL041) connected to a LM4549 codec.
It enables audio playback for the Versatile/PB platform.

Limitations:
- Supports only a playback on one channel (Versatile/Vexpress)
- Supports only one TX FIFO in compact-mode or non-compact mode.
- Supports playback of 12, 16, 18 and 20 bits samples.
- Record is not supported.
- The PL041 is hardwired to a LM4549 codec.

Versatile/PB test build:
linux-2.6.38.5
buildroot-2010.11
alsa-lib-1.0.22
alsa-utils-1.0.22
mpg123-0.66

Qemu host: Ubuntu 10.04 in Vmware/OS X

Playback tested successfully with speaker-test/aplay/mpg123.

Signed-off-by: Mathieu Sonet <contact@elasticsheep.com>
[Peter Maydell: fixed typo in code clearing SL1RXBUSY/SL2RXBUSY
 bits, as spotted by Andrzej Zaborowski]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
2011-10-31 05:40:22 +01:00

136 lines
3.4 KiB
C

/*
* Arm PrimeCell PL041 Advanced Audio Codec Interface
*
* Copyright (c) 2011
* Written by Mathieu Sonet - www.elasticsheep.com
*
* This code is licenced under the GPL.
*
* *****************************************************************
*/
#ifndef HW_PL041_H
#define HW_PL041_H
/* Register file */
#define REGISTER(name, offset) uint32_t name;
typedef struct {
#include "pl041.hx"
} pl041_regfile;
#undef REGISTER
/* Register addresses */
#define REGISTER(name, offset) PL041_##name = offset,
enum {
#include "pl041.hx"
PL041_periphid0 = 0xFE0,
PL041_periphid1 = 0xFE4,
PL041_periphid2 = 0xFE8,
PL041_periphid3 = 0xFEC,
PL041_pcellid0 = 0xFF0,
PL041_pcellid1 = 0xFF4,
PL041_pcellid2 = 0xFF8,
PL041_pcellid3 = 0xFFC,
};
#undef REGISTER
/* Register bits */
/* IEx */
#define TXCIE (1 << 0)
#define RXTIE (1 << 1)
#define TXIE (1 << 2)
#define RXIE (1 << 3)
#define RXOIE (1 << 4)
#define TXUIE (1 << 5)
#define RXTOIE (1 << 6)
/* TXCRx */
#define TXEN (1 << 0)
#define TXSLOT1 (1 << 1)
#define TXSLOT2 (1 << 2)
#define TXSLOT3 (1 << 3)
#define TXSLOT4 (1 << 4)
#define TXCOMPACT (1 << 15)
#define TXFEN (1 << 16)
#define TXSLOT_MASK_BIT (1)
#define TXSLOT_MASK (0xFFF << TXSLOT_MASK_BIT)
#define TSIZE_MASK_BIT (13)
#define TSIZE_MASK (0x3 << TSIZE_MASK_BIT)
#define TSIZE_16BITS (0x0 << TSIZE_MASK_BIT)
#define TSIZE_18BITS (0x1 << TSIZE_MASK_BIT)
#define TSIZE_20BITS (0x2 << TSIZE_MASK_BIT)
#define TSIZE_12BITS (0x3 << TSIZE_MASK_BIT)
/* SRx */
#define RXFE (1 << 0)
#define TXFE (1 << 1)
#define RXHF (1 << 2)
#define TXHE (1 << 3)
#define RXFF (1 << 4)
#define TXFF (1 << 5)
#define RXBUSY (1 << 6)
#define TXBUSY (1 << 7)
#define RXOVERRUN (1 << 8)
#define TXUNDERRUN (1 << 9)
#define RXTIMEOUT (1 << 10)
#define RXTOFE (1 << 11)
/* ISRx */
#define TXCINTR (1 << 0)
#define RXTOINTR (1 << 1)
#define TXINTR (1 << 2)
#define RXINTR (1 << 3)
#define ORINTR (1 << 4)
#define URINTR (1 << 5)
#define RXTOFEINTR (1 << 6)
/* SLFR */
#define SL1RXBUSY (1 << 0)
#define SL1TXBUSY (1 << 1)
#define SL2RXBUSY (1 << 2)
#define SL2TXBUSY (1 << 3)
#define SL12RXBUSY (1 << 4)
#define SL12TXBUSY (1 << 5)
#define SL1RXVALID (1 << 6)
#define SL1TXEMPTY (1 << 7)
#define SL2RXVALID (1 << 8)
#define SL2TXEMPTY (1 << 9)
#define SL12RXVALID (1 << 10)
#define SL12TXEMPTY (1 << 11)
#define RAWGPIOINT (1 << 12)
#define RWIS (1 << 13)
/* MAINCR */
#define AACIFE (1 << 0)
#define LOOPBACK (1 << 1)
#define LOWPOWER (1 << 2)
#define SL1RXEN (1 << 3)
#define SL1TXEN (1 << 4)
#define SL2RXEN (1 << 5)
#define SL2TXEN (1 << 6)
#define SL12RXEN (1 << 7)
#define SL12TXEN (1 << 8)
#define DMAENABLE (1 << 9)
/* INTCLR */
#define WISC (1 << 0)
#define RXOEC1 (1 << 1)
#define RXOEC2 (1 << 2)
#define RXOEC3 (1 << 3)
#define RXOEC4 (1 << 4)
#define TXUEC1 (1 << 5)
#define TXUEC2 (1 << 6)
#define TXUEC3 (1 << 7)
#define TXUEC4 (1 << 8)
#define RXTOFEC1 (1 << 9)
#define RXTOFEC2 (1 << 10)
#define RXTOFEC3 (1 << 11)
#define RXTOFEC4 (1 << 12)
#endif /* #ifndef HW_PL041_H */