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ASoC: Intel: Add DSP init and boot up functionality for SKL

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This patch adds code to enable, disable and boot DSP core.
Also provide some helpers to reset and power up/down the core.

Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Subhransu S. Prusty
2015-07-09 21:38:55 +05:30
zatwierdzone przez Mark Brown
rodzic b81fd26359
commit e973e31a02
4 zmienionych plików z 399 dodań i 1 usunięć
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57
sound/soc/intel/skylake/skl-sst-dsp.h
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@@ -16,6 +16,8 @@
#ifndef __SKL_SST_DSP_H__
#define __SKL_SST_DSP_H__
struct sst_dsp_device;
/* Intel HD Audio General DSP Registers */
#define SKL_ADSP_GEN_BASE 0x0
#define SKL_ADSP_REG_ADSPCS (SKL_ADSP_GEN_BASE + 0x04)
@@ -59,4 +61,59 @@
#define SKL_ADSPIC_IPC 1
#define SKL_ADSPIS_IPC 1
/* ADSPCS - Audio DSP Control & Status */
#define SKL_DSP_CORES 1
#define SKL_DSP_CORE0_MASK 1
#define SKL_DSP_CORES_MASK ((1 << SKL_DSP_CORES) - 1)
/* Core Reset - asserted high */
#define SKL_ADSPCS_CRST_SHIFT 0
#define SKL_ADSPCS_CRST_MASK (SKL_DSP_CORES_MASK << SKL_ADSPCS_CRST_SHIFT)
#define SKL_ADSPCS_CRST(x) ((x << SKL_ADSPCS_CRST_SHIFT) & SKL_ADSPCS_CRST_MASK)
/* Core run/stall - when set to '1' core is stalled */
#define SKL_ADSPCS_CSTALL_SHIFT 8
#define SKL_ADSPCS_CSTALL_MASK (SKL_DSP_CORES_MASK << \
SKL_ADSPCS_CSTALL_SHIFT)
#define SKL_ADSPCS_CSTALL(x) ((x << SKL_ADSPCS_CSTALL_SHIFT) & \
SKL_ADSPCS_CSTALL_MASK)
/* Set Power Active - when set to '1' turn cores on */
#define SKL_ADSPCS_SPA_SHIFT 16
#define SKL_ADSPCS_SPA_MASK (SKL_DSP_CORES_MASK << SKL_ADSPCS_SPA_SHIFT)
#define SKL_ADSPCS_SPA(x) ((x << SKL_ADSPCS_SPA_SHIFT) & SKL_ADSPCS_SPA_MASK)
/* Current Power Active - power status of cores, set by hardware */
#define SKL_ADSPCS_CPA_SHIFT 24
#define SKL_ADSPCS_CPA_MASK (SKL_DSP_CORES_MASK << SKL_ADSPCS_CPA_SHIFT)
#define SKL_ADSPCS_CPA(x) ((x << SKL_ADSPCS_CPA_SHIFT) & SKL_ADSPCS_CPA_MASK)
#define SST_DSP_POWER_D0 0x0 /* full On */
#define SST_DSP_POWER_D3 0x3 /* Off */
enum skl_dsp_states {
SKL_DSP_RUNNING = 1,
SKL_DSP_RESET,
};
struct skl_dsp_fw_ops {
int (*load_fw)(struct sst_dsp *ctx);
/* FW module parser/loader */
int (*parse_fw)(struct sst_dsp *ctx);
int (*set_state_D0)(struct sst_dsp *ctx);
int (*set_state_D3)(struct sst_dsp *ctx);
};
void skl_dsp_set_state_locked(struct sst_dsp *ctx, int state);
struct sst_dsp *skl_dsp_ctx_init(struct device *dev,
struct sst_dsp_device *sst_dev, int irq);
int skl_dsp_disable_core(struct sst_dsp *ctx);
bool is_skl_dsp_running(struct sst_dsp *ctx);
irqreturn_t skl_dsp_sst_interrupt(int irq, void *dev_id);
int skl_dsp_wake(struct sst_dsp *ctx);
int skl_dsp_sleep(struct sst_dsp *ctx);
void skl_dsp_free(struct sst_dsp *dsp);
int skl_dsp_boot(struct sst_dsp *ctx);
#endif /*__SKL_SST_DSP_H__*/