diff options
Diffstat (limited to 'sound/soc/at32/at32-pcm.h')
| -rw-r--r-- | sound/soc/at32/at32-pcm.h | 79 |
1 files changed, 0 insertions, 79 deletions
diff --git a/sound/soc/at32/at32-pcm.h b/sound/soc/at32/at32-pcm.h deleted file mode 100644 index 2a52430417da..000000000000 --- a/sound/soc/at32/at32-pcm.h +++ /dev/null | |||
| @@ -1,79 +0,0 @@ | |||
| 1 | /* sound/soc/at32/at32-pcm.h | ||
| 2 | * ASoC PCM interface for Atmel AT32 SoC | ||
| 3 | * | ||
| 4 | * Copyright (C) 2008 Long Range Systems | ||
| 5 | * Geoffrey Wossum <gwossum@acm.org> | ||
| 6 | * | ||
| 7 | * This program is free software; you can redistribute it and/or modify | ||
| 8 | * it under the terms of the GNU General Public License version 2 as | ||
| 9 | * published by the Free Software Foundation. | ||
| 10 | */ | ||
| 11 | |||
| 12 | #ifndef __SOUND_SOC_AT32_AT32_PCM_H | ||
| 13 | #define __SOUND_SOC_AT32_AT32_PCM_H __FILE__ | ||
| 14 | |||
| 15 | #include <linux/atmel-ssc.h> | ||
| 16 | |||
| 17 | |||
| 18 | /* | ||
| 19 | * Registers and status bits that are required by the PCM driver | ||
| 20 | * TODO: Is ptcr really used? | ||
| 21 | */ | ||
| 22 | struct at32_pdc_regs { | ||
| 23 | u32 xpr; /* PDC RX/TX pointer */ | ||
| 24 | u32 xcr; /* PDC RX/TX counter */ | ||
| 25 | u32 xnpr; /* PDC next RX/TX pointer */ | ||
| 26 | u32 xncr; /* PDC next RX/TX counter */ | ||
| 27 | u32 ptcr; /* PDC transfer control */ | ||
| 28 | }; | ||
| 29 | |||
| 30 | |||
| 31 | |||
| 32 | /* | ||
| 33 | * SSC mask info | ||
| 34 | */ | ||
| 35 | struct at32_ssc_mask { | ||
| 36 | u32 ssc_enable; /* SSC RX/TX enable */ | ||
| 37 | u32 ssc_disable; /* SSC RX/TX disable */ | ||
| 38 | u32 ssc_endx; /* SSC ENDTX or ENDRX */ | ||
| 39 | u32 ssc_endbuf; /* SSC TXBUFF or RXBUFF */ | ||
| 40 | u32 pdc_enable; /* PDC RX/TX enable */ | ||
| 41 | u32 pdc_disable; /* PDC RX/TX disable */ | ||
| 42 | }; | ||
| 43 | |||
| 44 | |||
| 45 | |||
| 46 | /* | ||
| 47 | * This structure, shared between the PCM driver and the interface, | ||
| 48 | * contains all information required by the PCM driver to perform the | ||
| 49 | * PDC DMA operation. All fields except dma_intr_handler() are initialized | ||
| 50 | * by the interface. The dms_intr_handler() pointer is set by the PCM | ||
| 51 | * driver and called by the interface SSC interrupt handler if it is | ||
| 52 | * non-NULL. | ||
| 53 | */ | ||
| 54 | struct at32_pcm_dma_params { | ||
| 55 | char *name; /* stream identifier */ | ||
| 56 | int pdc_xfer_size; /* PDC counter increment in bytes */ | ||
| 57 | struct ssc_device *ssc; /* SSC device for stream */ | ||
| 58 | struct at32_pdc_regs *pdc; /* PDC register info */ | ||
| 59 | struct at32_ssc_mask *mask; /* SSC mask info */ | ||
| 60 | struct snd_pcm_substream *substream; | ||
| 61 | void (*dma_intr_handler) (u32, struct snd_pcm_substream *); | ||
| 62 | }; | ||
| 63 | |||
| 64 | |||
| 65 | |||
| 66 | /* | ||
| 67 | * The AT32 ASoC platform driver | ||
| 68 | */ | ||
| 69 | extern struct snd_soc_platform at32_soc_platform; | ||
| 70 | |||
| 71 | |||
| 72 | |||
| 73 | /* | ||
| 74 | * SSC register access (since ssc_writel() / ssc_readl() require literal name) | ||
| 75 | */ | ||
| 76 | #define ssc_readx(base, reg) (__raw_readl((base) + (reg))) | ||
| 77 | #define ssc_writex(base, reg, value) __raw_writel((value), (base) + (reg)) | ||
| 78 | |||
| 79 | #endif /* __SOUND_SOC_AT32_AT32_PCM_H */ | ||