| /* |
| * 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, |
| u32 **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); |
| 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_ */ |
