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/*
* Intel Code Loader DMA support
*
* Copyright (C) 2015, Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as version 2, as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
#ifndef SKL_SST_CLDMA_H_
#define SKL_SST_CLDMA_H_
#define FW_CL_STREAM_NUMBER 0x1
#define DMA_ADDRESS_128_BITS_ALIGNMENT 7
#define BDL_ALIGN(x) (x >> DMA_ADDRESS_128_BITS_ALIGNMENT)
#define SKL_ADSPIC_CL_DMA 0x2
#define SKL_ADSPIS_CL_DMA 0x2
#define SKL_CL_DMA_SD_INT_DESC_ERR 0x10 /* Descriptor error interrupt */
#define SKL_CL_DMA_SD_INT_FIFO_ERR 0x08 /* FIFO error interrupt */
#define SKL_CL_DMA_SD_INT_COMPLETE 0x04 /* Buffer completion interrupt */
/* Intel HD Audio Code Loader DMA Registers */
#define HDA_ADSP_LOADER_BASE 0x80
/* Stream Registers */
#define SKL_ADSP_REG_CL_SD_CTL (HDA_ADSP_LOADER_BASE + 0x00)
#define SKL_ADSP_REG_CL_SD_STS (HDA_ADSP_LOADER_BASE + 0x03)
#define SKL_ADSP_REG_CL_SD_LPIB (HDA_ADSP_LOADER_BASE + 0x04)
#define SKL_ADSP_REG_CL_SD_CBL (HDA_ADSP_LOADER_BASE + 0x08)
#define SKL_ADSP_REG_CL_SD_LVI (HDA_ADSP_LOADER_BASE + 0x0c)
#define SKL_ADSP_REG_CL_SD_FIFOW (HDA_ADSP_LOADER_BASE + 0x0e)
#define SKL_ADSP_REG_CL_SD_FIFOSIZE (HDA_ADSP_LOADER_BASE + 0x10)
#define SKL_ADSP_REG_CL_SD_FORMAT (HDA_ADSP_LOADER_BASE + 0x12)
#define SKL_ADSP_REG_CL_SD_FIFOL (HDA_ADSP_LOADER_BASE + 0x14)
#define SKL_ADSP_REG_CL_SD_BDLPL (HDA_ADSP_LOADER_BASE + 0x18)
#define SKL_ADSP_REG_CL_SD_BDLPU (HDA_ADSP_LOADER_BASE + 0x1c)
/* CL: Software Position Based FIFO Capability Registers */
#define SKL_ADSP_REG_CL_SPBFIFO (HDA_ADSP_LOADER_BASE + 0x20)
#define SKL_ADSP_REG_CL_SPBFIFO_SPBFCH (SKL_ADSP_REG_CL_SPBFIFO + 0x0)
#define SKL_ADSP_REG_CL_SPBFIFO_SPBFCCTL (SKL_ADSP_REG_CL_SPBFIFO + 0x4)
#define SKL_ADSP_REG_CL_SPBFIFO_SPIB (SKL_ADSP_REG_CL_SPBFIFO + 0x8)
#define SKL_ADSP_REG_CL_SPBFIFO_MAXFIFOS (SKL_ADSP_REG_CL_SPBFIFO + 0xc)
/* CL: Stream Descriptor x Control */
/* Stream Reset */
#define CL_SD_CTL_SRST_SHIFT 0
#define CL_SD_CTL_SRST_MASK (1 << CL_SD_CTL_SRST_SHIFT)
#define CL_SD_CTL_SRST(x) \
((x << CL_SD_CTL_SRST_SHIFT) & CL_SD_CTL_SRST_MASK)
/* Stream Run */
#define CL_SD_CTL_RUN_SHIFT 1
#define CL_SD_CTL_RUN_MASK (1 << CL_SD_CTL_RUN_SHIFT)
#define CL_SD_CTL_RUN(x) \
((x << CL_SD_CTL_RUN_SHIFT) & CL_SD_CTL_RUN_MASK)
/* Interrupt On Completion Enable */
#define CL_SD_CTL_IOCE_SHIFT 2
#define CL_SD_CTL_IOCE_MASK (1 << CL_SD_CTL_IOCE_SHIFT)
#define CL_SD_CTL_IOCE(x) \
((x << CL_SD_CTL_IOCE_SHIFT) & CL_SD_CTL_IOCE_MASK)
/* FIFO Error Interrupt Enable */
#define CL_SD_CTL_FEIE_SHIFT 3
#define CL_SD_CTL_FEIE_MASK (1 << CL_SD_CTL_FEIE_SHIFT)
#define CL_SD_CTL_FEIE(x) \
((x << CL_SD_CTL_FEIE_SHIFT) & CL_SD_CTL_FEIE_MASK)
/* Descriptor Error Interrupt Enable */
#define CL_SD_CTL_DEIE_SHIFT 4
#define CL_SD_CTL_DEIE_MASK (1 << CL_SD_CTL_DEIE_SHIFT)
#define CL_SD_CTL_DEIE(x) \
((x << CL_SD_CTL_DEIE_SHIFT) & CL_SD_CTL_DEIE_MASK)
/* FIFO Limit Change */
#define CL_SD_CTL_FIFOLC_SHIFT 5
#define CL_SD_CTL_FIFOLC_MASK (1 << CL_SD_CTL_FIFOLC_SHIFT)
#define CL_SD_CTL_FIFOLC(x) \
((x << CL_SD_CTL_FIFOLC_SHIFT) & CL_SD_CTL_FIFOLC_MASK)
/* Stripe Control */
#define CL_SD_CTL_STRIPE_SHIFT 16
#define CL_SD_CTL_STRIPE_MASK (0x3 << CL_SD_CTL_STRIPE_SHIFT)
#define CL_SD_CTL_STRIPE(x) \
((x << CL_SD_CTL_STRIPE_SHIFT) & CL_SD_CTL_STRIPE_MASK)
/* Traffic Priority */
#define CL_SD_CTL_TP_SHIFT 18
#define CL_SD_CTL_TP_MASK (1 << CL_SD_CTL_TP_SHIFT)
#define CL_SD_CTL_TP(x) \
((x << CL_SD_CTL_TP_SHIFT) & CL_SD_CTL_TP_MASK)
/* Bidirectional Direction Control */
#define CL_SD_CTL_DIR_SHIFT 19
#define CL_SD_CTL_DIR_MASK (1 << CL_SD_CTL_DIR_SHIFT)
#define CL_SD_CTL_DIR(x) \
((x << CL_SD_CTL_DIR_SHIFT) & CL_SD_CTL_DIR_MASK)
/* Stream Number */
#define CL_SD_CTL_STRM_SHIFT 20
#define CL_SD_CTL_STRM_MASK (0xf << CL_SD_CTL_STRM_SHIFT)
#define CL_SD_CTL_STRM(x) \
((x << CL_SD_CTL_STRM_SHIFT) & CL_SD_CTL_STRM_MASK)
/* CL: Stream Descriptor x Status */
/* Buffer Completion Interrupt Status */
#define CL_SD_STS_BCIS(x) CL_SD_CTL_IOCE(x)
/* FIFO Error */
#define CL_SD_STS_FIFOE(x) CL_SD_CTL_FEIE(x)
/* Descriptor Error */
#define CL_SD_STS_DESE(x) CL_SD_CTL_DEIE(x)
/* FIFO Ready */
#define CL_SD_STS_FIFORDY(x) CL_SD_CTL_FIFOLC(x)
/* CL: Stream Descriptor x Last Valid Index */
#define CL_SD_LVI_SHIFT 0
#define CL_SD_LVI_MASK (0xff << CL_SD_LVI_SHIFT)
#define CL_SD_LVI(x) ((x << CL_SD_LVI_SHIFT) & CL_SD_LVI_MASK)
/* CL: Stream Descriptor x FIFO Eviction Watermark */
#define CL_SD_FIFOW_SHIFT 0
#define CL_SD_FIFOW_MASK (0x7 << CL_SD_FIFOW_SHIFT)
#define CL_SD_FIFOW(x) \
((x << CL_SD_FIFOW_SHIFT) & CL_SD_FIFOW_MASK)
/* CL: Stream Descriptor x Buffer Descriptor List Pointer Lower Base Address */
/* Protect Bits */
#define CL_SD_BDLPLBA_PROT_SHIFT 0
#define CL_SD_BDLPLBA_PROT_MASK (1 << CL_SD_BDLPLBA_PROT_SHIFT)
#define CL_SD_BDLPLBA_PROT(x) \
((x << CL_SD_BDLPLBA_PROT_SHIFT) & CL_SD_BDLPLBA_PROT_MASK)
/* Buffer Descriptor List Lower Base Address */
#define CL_SD_BDLPLBA_SHIFT 7
#define CL_SD_BDLPLBA_MASK (0x1ffffff << CL_SD_BDLPLBA_SHIFT)
#define CL_SD_BDLPLBA(x) \
((BDL_ALIGN(lower_32_bits(x)) << CL_SD_BDLPLBA_SHIFT) & CL_SD_BDLPLBA_MASK)
/* Buffer Descriptor List Upper Base Address */
#define CL_SD_BDLPUBA_SHIFT 0
#define CL_SD_BDLPUBA_MASK (0xffffffff << CL_SD_BDLPUBA_SHIFT)
#define CL_SD_BDLPUBA(x) \
((upper_32_bits(x) << CL_SD_BDLPUBA_SHIFT) & CL_SD_BDLPUBA_MASK)
/*
* Code Loader - Software Position Based FIFO
* Capability Registers x Software Position Based FIFO Header
*/
/* Next Capability Pointer */
#define CL_SPBFIFO_SPBFCH_PTR_SHIFT 0
#define CL_SPBFIFO_SPBFCH_PTR_MASK (0xff << CL_SPBFIFO_SPBFCH_PTR_SHIFT)
#define CL_SPBFIFO_SPBFCH_PTR(x) \
((x << CL_SPBFIFO_SPBFCH_PTR_SHIFT) & CL_SPBFIFO_SPBFCH_PTR_MASK)
/* Capability Identifier */
#define CL_SPBFIFO_SPBFCH_ID_SHIFT 16
#define CL_SPBFIFO_SPBFCH_ID_MASK (0xfff << CL_SPBFIFO_SPBFCH_ID_SHIFT)
#define CL_SPBFIFO_SPBFCH_ID(x) \
((x << CL_SPBFIFO_SPBFCH_ID_SHIFT) & CL_SPBFIFO_SPBFCH_ID_MASK)
/* Capability Version */
#define CL_SPBFIFO_SPBFCH_VER_SHIFT 28
#define CL_SPBFIFO_SPBFCH_VER_MASK (0xf << CL_SPBFIFO_SPBFCH_VER_SHIFT)
#define CL_SPBFIFO_SPBFCH_VER(x) \
((x << CL_SPBFIFO_SPBFCH_VER_SHIFT) & CL_SPBFIFO_SPBFCH_VER_MASK)
/* Software Position in Buffer Enable */
#define CL_SPBFIFO_SPBFCCTL_SPIBE_SHIFT 0
#define CL_SPBFIFO_SPBFCCTL_SPIBE_MASK (1 << CL_SPBFIFO_SPBFCCTL_SPIBE_SHIFT)
#define CL_SPBFIFO_SPBFCCTL_SPIBE(x) \
((x << CL_SPBFIFO_SPBFCCTL_SPIBE_SHIFT) & CL_SPBFIFO_SPBFCCTL_SPIBE_MASK)
/* SST IPC SKL defines */
#define SKL_WAIT_TIMEOUT 500 /* 500 msec */
#define SKL_MAX_BUFFER_SIZE (32 * PAGE_SIZE)
enum skl_cl_dma_wake_states {
SKL_CL_DMA_STATUS_NONE = 0,
SKL_CL_DMA_BUF_COMPLETE,
SKL_CL_DMA_ERR, /* TODO: Expand the error states */
};
struct sst_dsp;
struct skl_cl_dev_ops {
void (*cl_setup_bdle)(struct sst_dsp *ctx,
struct snd_dma_buffer *dmab_data,
__le32 **bdlp, int size, int with_ioc);
void (*cl_setup_controller)(struct sst_dsp *ctx,
struct snd_dma_buffer *dmab_bdl,
unsigned int max_size, u32 page_count);
void (*cl_setup_spb)(struct sst_dsp *ctx,
unsigned int size, bool enable);
void (*cl_cleanup_spb)(struct sst_dsp *ctx);
void (*cl_trigger)(struct sst_dsp *ctx, bool enable);
void (*cl_cleanup_controller)(struct sst_dsp *ctx);
int (*cl_copy_to_dmabuf)(struct sst_dsp *ctx,
const void *bin, u32 size, bool wait);
void (*cl_stop_dma)(struct sst_dsp *ctx);
};
/**
* skl_cl_dev - holds information for code loader dma transfer
*
* @dmab_data: buffer pointer
* @dmab_bdl: buffer descriptor list
* @bufsize: ring buffer size
* @frags: Last valid buffer descriptor index in the BDL
* @curr_spib_pos: Current position in ring buffer
* @dma_buffer_offset: dma buffer offset
* @ops: operations supported on CL dma
* @wait_queue: wait queue to wake for wake event
* @wake_status: DMA wake status
* @wait_condition: condition to wait on wait queue
* @cl_dma_lock: for synchronized access to cldma
*/
struct skl_cl_dev {
struct snd_dma_buffer dmab_data;
struct snd_dma_buffer dmab_bdl;
unsigned int bufsize;
unsigned int frags;
unsigned int curr_spib_pos;
unsigned int dma_buffer_offset;
struct skl_cl_dev_ops ops;
wait_queue_head_t wait_queue;
int wake_status;
bool wait_condition;
};
#endif /* SKL_SST_CLDMA_H_ */
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