linux/sound/soc/intel/catpt/dsp.c

// SPDX-License-Identifier: GPL-2.0-only
//
// Copyright(c) 2020 Intel Corporation
//
// Author: Cezary Rojewski <[email protected]>
//

#include <linux/devcoredump.h>
#include <linux/dma-mapping.h>
#include <linux/firmware.h>
#include <linux/pci.h>
#include <linux/pxa2xx_ssp.h>
#include "core.h"
#include "messages.h"
#include "registers.h"

static bool catpt_dma_filter(struct dma_chan *chan, void *param)
{ … }

/*
 * Either engine 0 or 1 can be used for image loading.
 * Align with Windows driver equivalent and stick to engine 1.
 */
#define CATPT_DMA_DEVID …
#define CATPT_DMA_DSP_ADDR_MASK …

struct dma_chan *catpt_dma_request_config_chan(struct catpt_dev *cdev)
{ … }

static int catpt_dma_memcpy(struct catpt_dev *cdev, struct dma_chan *chan,
			    dma_addr_t dst_addr, dma_addr_t src_addr,
			    size_t size)
{ … }

int catpt_dma_memcpy_todsp(struct catpt_dev *cdev, struct dma_chan *chan,
			   dma_addr_t dst_addr, dma_addr_t src_addr,
			   size_t size)
{ … }

int catpt_dma_memcpy_fromdsp(struct catpt_dev *cdev, struct dma_chan *chan,
			     dma_addr_t dst_addr, dma_addr_t src_addr,
			     size_t size)
{ … }

int catpt_dmac_probe(struct catpt_dev *cdev)
{ … }

void catpt_dmac_remove(struct catpt_dev *cdev)
{ … }

static void catpt_dsp_set_srampge(struct catpt_dev *cdev, struct resource *sram,
				  unsigned long mask, unsigned long new)
{ … }

void catpt_dsp_update_srampge(struct catpt_dev *cdev, struct resource *sram,
			      unsigned long mask)
{ … }

int catpt_dsp_stall(struct catpt_dev *cdev, bool stall)
{ … }

static int catpt_dsp_reset(struct catpt_dev *cdev, bool reset)
{ … }

void lpt_dsp_pll_shutdown(struct catpt_dev *cdev, bool enable)
{ … }

void wpt_dsp_pll_shutdown(struct catpt_dev *cdev, bool enable)
{ … }

static int catpt_dsp_select_lpclock(struct catpt_dev *cdev, bool lp, bool waiti)
{ … }

int catpt_dsp_update_lpclock(struct catpt_dev *cdev)
{ … }

/* bring registers to their defaults as HW won't reset itself */
static void catpt_dsp_set_regs_defaults(struct catpt_dev *cdev)
{ … }

int catpt_dsp_power_down(struct catpt_dev *cdev)
{ … }

int catpt_dsp_power_up(struct catpt_dev *cdev)
{ … }

#define CATPT_DUMP_MAGIC …
#define CATPT_DUMP_SECTION_ID_FILE …
#define CATPT_DUMP_SECTION_ID_IRAM …
#define CATPT_DUMP_SECTION_ID_DRAM …
#define CATPT_DUMP_SECTION_ID_REGS …
#define CATPT_DUMP_HASH_SIZE …

struct catpt_dump_section_hdr { … };

int catpt_coredump(struct catpt_dev *cdev)
{ … }