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10df350977
The Intel IOMMU requires that the ACPI device is used to allocate all DMA memory buffers. This means we need to pass the DMA device pointer into child component devices that allocate DMA memory. We also only set the DMA mask for the ACPI device now instead of for each component device. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com> Signed-off-by: Mark Brown <broonie@linaro.org>
234 lines
6.6 KiB
C
234 lines
6.6 KiB
C
/*
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* Intel Smart Sound Technology (SST) Core
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*
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* Copyright (C) 2013, Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License version
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* 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#ifndef __SOUND_SOC_SST_DSP_H
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#define __SOUND_SOC_SST_DSP_H
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/interrupt.h>
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/* SST Device IDs */
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#define SST_DEV_ID_LYNX_POINT 0x33C8
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#define SST_DEV_ID_WILDCAT_POINT 0x3438
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#define SST_DEV_ID_BYT 0x0F28
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/* Supported SST DMA Devices */
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#define SST_DMA_TYPE_DW 1
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#define SST_DMA_TYPE_MID 2
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/* SST Shim register map
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* The register naming can differ between products. Some products also
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* contain extra functionality.
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*/
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#define SST_CSR 0x00
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#define SST_PISR 0x08
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#define SST_PIMR 0x10
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#define SST_ISRX 0x18
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#define SST_ISRD 0x20
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#define SST_IMRX 0x28
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#define SST_IMRD 0x30
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#define SST_IPCX 0x38 /* IPC IA -> SST */
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#define SST_IPCD 0x40 /* IPC SST -> IA */
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#define SST_ISRSC 0x48
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#define SST_ISRLPESC 0x50
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#define SST_IMRSC 0x58
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#define SST_IMRLPESC 0x60
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#define SST_IPCSC 0x68
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#define SST_IPCLPESC 0x70
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#define SST_CLKCTL 0x78
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#define SST_CSR2 0x80
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#define SST_LTRC 0xE0
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#define SST_HDMC 0xE8
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#define SST_DBGO 0xF0
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#define SST_SHIM_SIZE 0x100
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#define SST_PWMCTRL 0x1000
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/* SST Shim Register bits
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* The register bit naming can differ between products. Some products also
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* contain extra functionality.
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*/
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/* CSR / CS */
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#define SST_CSR_RST (0x1 << 1)
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#define SST_CSR_SBCS0 (0x1 << 2)
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#define SST_CSR_SBCS1 (0x1 << 3)
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#define SST_CSR_DCS(x) (x << 4)
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#define SST_CSR_DCS_MASK (0x7 << 4)
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#define SST_CSR_STALL (0x1 << 10)
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#define SST_CSR_S0IOCS (0x1 << 21)
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#define SST_CSR_S1IOCS (0x1 << 23)
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#define SST_CSR_LPCS (0x1 << 31)
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#define SST_BYT_CSR_RST (0x1 << 0)
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#define SST_BYT_CSR_VECTOR_SEL (0x1 << 1)
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#define SST_BYT_CSR_STALL (0x1 << 2)
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#define SST_BYT_CSR_PWAITMODE (0x1 << 3)
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/* ISRX / ISC */
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#define SST_ISRX_BUSY (0x1 << 1)
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#define SST_ISRX_DONE (0x1 << 0)
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#define SST_BYT_ISRX_REQUEST (0x1 << 1)
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/* ISRD / ISD */
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#define SST_ISRD_BUSY (0x1 << 1)
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#define SST_ISRD_DONE (0x1 << 0)
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/* IMRX / IMC */
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#define SST_IMRX_BUSY (0x1 << 1)
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#define SST_IMRX_DONE (0x1 << 0)
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#define SST_BYT_IMRX_REQUEST (0x1 << 1)
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/* IPCX / IPCC */
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#define SST_IPCX_DONE (0x1 << 30)
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#define SST_IPCX_BUSY (0x1 << 31)
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#define SST_BYT_IPCX_DONE ((u64)0x1 << 62)
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#define SST_BYT_IPCX_BUSY ((u64)0x1 << 63)
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/* IPCD */
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#define SST_IPCD_DONE (0x1 << 30)
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#define SST_IPCD_BUSY (0x1 << 31)
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#define SST_BYT_IPCD_DONE ((u64)0x1 << 62)
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#define SST_BYT_IPCD_BUSY ((u64)0x1 << 63)
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/* CLKCTL */
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#define SST_CLKCTL_SMOS(x) (x << 24)
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#define SST_CLKCTL_MASK (3 << 24)
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#define SST_CLKCTL_DCPLCG (1 << 18)
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#define SST_CLKCTL_SCOE1 (1 << 17)
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#define SST_CLKCTL_SCOE0 (1 << 16)
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/* CSR2 / CS2 */
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#define SST_CSR2_SDFD_SSP0 (1 << 1)
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#define SST_CSR2_SDFD_SSP1 (1 << 2)
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/* LTRC */
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#define SST_LTRC_VAL(x) (x << 0)
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/* HDMC */
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#define SST_HDMC_HDDA0(x) (x << 0)
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#define SST_HDMC_HDDA1(x) (x << 7)
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/* SST Vendor Defined Registers and bits */
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#define SST_VDRTCTL0 0xa0
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#define SST_VDRTCTL1 0xa4
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#define SST_VDRTCTL2 0xa8
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#define SST_VDRTCTL3 0xaC
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/* VDRTCTL0 */
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#define SST_VDRTCL0_DSRAMPGE_SHIFT 16
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#define SST_VDRTCL0_DSRAMPGE_MASK (0xffff << SST_VDRTCL0_DSRAMPGE_SHIFT)
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#define SST_VDRTCL0_ISRAMPGE_SHIFT 6
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#define SST_VDRTCL0_ISRAMPGE_MASK (0x3ff << SST_VDRTCL0_ISRAMPGE_SHIFT)
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struct sst_dsp;
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/*
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* SST Device.
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*
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* This structure is populated by the SST core driver.
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*/
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struct sst_dsp_device {
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/* Mandatory fields */
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struct sst_ops *ops;
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irqreturn_t (*thread)(int irq, void *context);
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void *thread_context;
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};
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/*
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* SST Platform Data.
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*/
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struct sst_pdata {
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/* ACPI data */
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u32 lpe_base;
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u32 lpe_size;
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u32 pcicfg_base;
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u32 pcicfg_size;
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u32 fw_base;
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u32 fw_size;
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int irq;
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/* Firmware */
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const struct firmware *fw;
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/* DMA */
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u32 dma_base;
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u32 dma_size;
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int dma_engine;
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struct device *dma_dev;
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/* DSP */
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u32 id;
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void *dsp;
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};
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/* Initialization */
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struct sst_dsp *sst_dsp_new(struct device *dev,
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struct sst_dsp_device *sst_dev, struct sst_pdata *pdata);
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void sst_dsp_free(struct sst_dsp *sst);
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/* SHIM Read / Write */
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void sst_dsp_shim_write(struct sst_dsp *sst, u32 offset, u32 value);
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u32 sst_dsp_shim_read(struct sst_dsp *sst, u32 offset);
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int sst_dsp_shim_update_bits(struct sst_dsp *sst, u32 offset,
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u32 mask, u32 value);
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void sst_dsp_shim_write64(struct sst_dsp *sst, u32 offset, u64 value);
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u64 sst_dsp_shim_read64(struct sst_dsp *sst, u32 offset);
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int sst_dsp_shim_update_bits64(struct sst_dsp *sst, u32 offset,
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u64 mask, u64 value);
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/* SHIM Read / Write Unlocked for callers already holding sst lock */
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void sst_dsp_shim_write_unlocked(struct sst_dsp *sst, u32 offset, u32 value);
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u32 sst_dsp_shim_read_unlocked(struct sst_dsp *sst, u32 offset);
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int sst_dsp_shim_update_bits_unlocked(struct sst_dsp *sst, u32 offset,
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u32 mask, u32 value);
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void sst_dsp_shim_write64_unlocked(struct sst_dsp *sst, u32 offset, u64 value);
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u64 sst_dsp_shim_read64_unlocked(struct sst_dsp *sst, u32 offset);
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int sst_dsp_shim_update_bits64_unlocked(struct sst_dsp *sst, u32 offset,
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u64 mask, u64 value);
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/* Internal generic low-level SST IO functions - can be overidden */
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void sst_shim32_write(void __iomem *addr, u32 offset, u32 value);
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u32 sst_shim32_read(void __iomem *addr, u32 offset);
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void sst_shim32_write64(void __iomem *addr, u32 offset, u64 value);
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u64 sst_shim32_read64(void __iomem *addr, u32 offset);
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void sst_memcpy_toio_32(struct sst_dsp *sst,
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void __iomem *dest, void *src, size_t bytes);
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void sst_memcpy_fromio_32(struct sst_dsp *sst,
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void *dest, void __iomem *src, size_t bytes);
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/* DSP reset & boot */
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void sst_dsp_reset(struct sst_dsp *sst);
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int sst_dsp_boot(struct sst_dsp *sst);
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/* Msg IO */
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void sst_dsp_ipc_msg_tx(struct sst_dsp *dsp, u32 msg);
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u32 sst_dsp_ipc_msg_rx(struct sst_dsp *dsp);
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/* Mailbox management */
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int sst_dsp_mailbox_init(struct sst_dsp *dsp, u32 inbox_offset,
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size_t inbox_size, u32 outbox_offset, size_t outbox_size);
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void sst_dsp_inbox_write(struct sst_dsp *dsp, void *message, size_t bytes);
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void sst_dsp_inbox_read(struct sst_dsp *dsp, void *message, size_t bytes);
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void sst_dsp_outbox_write(struct sst_dsp *dsp, void *message, size_t bytes);
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void sst_dsp_outbox_read(struct sst_dsp *dsp, void *message, size_t bytes);
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void sst_dsp_mailbox_dump(struct sst_dsp *dsp, size_t bytes);
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/* Debug */
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void sst_dsp_dump(struct sst_dsp *sst);
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#endif
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