753 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			753 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
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| // Copyright(c) 2023 Intel Corporation
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| 
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| /*
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|  * Soundwire Intel ops for LunarLake
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|  */
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| 
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| #include <linux/acpi.h>
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| #include <linux/cleanup.h>
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| #include <linux/device.h>
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| #include <linux/soundwire/sdw_registers.h>
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| #include <linux/soundwire/sdw.h>
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| #include <linux/soundwire/sdw_intel.h>
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| #include <sound/hdaudio.h>
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| #include <sound/hda-mlink.h>
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| #include <sound/hda_register.h>
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| #include <sound/pcm_params.h>
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| #include "cadence_master.h"
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| #include "bus.h"
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| #include "intel.h"
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| 
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| /*
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|  * shim vendor-specific (vs) ops
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|  */
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| 
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| static void intel_shim_vs_init(struct sdw_intel *sdw)
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| {
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| 	void __iomem *shim_vs = sdw->link_res->shim_vs;
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| 	struct sdw_bus *bus = &sdw->cdns.bus;
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| 	struct sdw_intel_prop *intel_prop;
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| 	u16 clde;
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| 	u16 doaise2;
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| 	u16 dodse2;
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| 	u16 clds;
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| 	u16 clss;
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| 	u16 doaise;
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| 	u16 doais;
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| 	u16 dodse;
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| 	u16 dods;
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| 	u16 act;
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| 
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| 	intel_prop = bus->vendor_specific_prop;
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| 	clde = intel_prop->clde;
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| 	doaise2 = intel_prop->doaise2;
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| 	dodse2 = intel_prop->dodse2;
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| 	clds = intel_prop->clds;
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| 	clss = intel_prop->clss;
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| 	doaise = intel_prop->doaise;
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| 	doais = intel_prop->doais;
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| 	dodse = intel_prop->dodse;
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| 	dods = intel_prop->dods;
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| 
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| 	act = intel_readw(shim_vs, SDW_SHIM2_INTEL_VS_ACTMCTL);
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| 	u16p_replace_bits(&act, clde, SDW_SHIM3_INTEL_VS_ACTMCTL_CLDE);
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| 	u16p_replace_bits(&act, doaise2, SDW_SHIM3_INTEL_VS_ACTMCTL_DOAISE2);
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| 	u16p_replace_bits(&act, dodse2, SDW_SHIM3_INTEL_VS_ACTMCTL_DODSE2);
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| 	u16p_replace_bits(&act, clds, SDW_SHIM3_INTEL_VS_ACTMCTL_CLDS);
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| 	u16p_replace_bits(&act, clss, SDW_SHIM3_INTEL_VS_ACTMCTL_CLSS);
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| 	u16p_replace_bits(&act, doaise, SDW_SHIM2_INTEL_VS_ACTMCTL_DOAISE);
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| 	u16p_replace_bits(&act, doais, SDW_SHIM2_INTEL_VS_ACTMCTL_DOAIS);
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| 	u16p_replace_bits(&act, dodse, SDW_SHIM2_INTEL_VS_ACTMCTL_DODSE);
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| 	u16p_replace_bits(&act, dods, SDW_SHIM2_INTEL_VS_ACTMCTL_DODS);
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| 	act |= SDW_SHIM2_INTEL_VS_ACTMCTL_DACTQE;
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| 	intel_writew(shim_vs, SDW_SHIM2_INTEL_VS_ACTMCTL, act);
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| 	usleep_range(10, 15);
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| }
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| 
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| static void intel_shim_vs_set_clock_source(struct sdw_intel *sdw, u32 source)
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| {
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| 	void __iomem *shim_vs = sdw->link_res->shim_vs;
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| 	u32 val;
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| 
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| 	val = intel_readl(shim_vs, SDW_SHIM2_INTEL_VS_LVSCTL);
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| 
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| 	u32p_replace_bits(&val, source, SDW_SHIM2_INTEL_VS_LVSCTL_MLCS);
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| 
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| 	intel_writel(shim_vs, SDW_SHIM2_INTEL_VS_LVSCTL, val);
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| 
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| 	dev_dbg(sdw->cdns.dev, "clock source %d LVSCTL %#x\n", source, val);
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| }
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| 
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| static int intel_shim_check_wake(struct sdw_intel *sdw)
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| {
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| 	/*
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| 	 * We follow the HDaudio example and resume unconditionally
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| 	 * without checking the WAKESTS bit for that specific link
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| 	 */
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| 
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| 	return 1;
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| }
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| 
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| static void intel_shim_wake(struct sdw_intel *sdw, bool wake_enable)
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| {
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| 	u16 lsdiid = 0;
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| 	u16 wake_en;
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| 	u16 wake_sts;
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| 	int ret;
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| 
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| 	mutex_lock(sdw->link_res->shim_lock);
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| 
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| 	ret = hdac_bus_eml_sdw_get_lsdiid_unlocked(sdw->link_res->hbus, sdw->instance, &lsdiid);
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| 	if (ret < 0)
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| 		goto unlock;
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| 
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| 	wake_en = snd_hdac_chip_readw(sdw->link_res->hbus, WAKEEN);
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| 
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| 	if (wake_enable) {
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| 		/* Enable the wakeup */
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| 		wake_en |= lsdiid;
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| 
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| 		snd_hdac_chip_writew(sdw->link_res->hbus, WAKEEN, wake_en);
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| 	} else {
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| 		/* Disable the wake up interrupt */
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| 		wake_en &= ~lsdiid;
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| 		snd_hdac_chip_writew(sdw->link_res->hbus, WAKEEN, wake_en);
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| 
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| 		/* Clear wake status (W1C) */
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| 		wake_sts = snd_hdac_chip_readw(sdw->link_res->hbus, STATESTS);
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| 		wake_sts |= lsdiid;
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| 		snd_hdac_chip_writew(sdw->link_res->hbus, STATESTS, wake_sts);
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| 	}
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| unlock:
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| 	mutex_unlock(sdw->link_res->shim_lock);
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| }
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| 
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| static int intel_link_power_up(struct sdw_intel *sdw)
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| {
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| 	struct sdw_bus *bus = &sdw->cdns.bus;
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| 	struct sdw_master_prop *prop = &bus->prop;
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| 	u32 *shim_mask = sdw->link_res->shim_mask;
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| 	unsigned int link_id = sdw->instance;
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| 	u32 clock_source;
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| 	u32 syncprd;
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| 	int ret;
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| 
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| 	if (prop->mclk_freq % 6000000) {
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| 		if (prop->mclk_freq % 2400000) {
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| 			syncprd = SDW_SHIM_SYNC_SYNCPRD_VAL_24_576;
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| 			clock_source = SDW_SHIM2_MLCS_CARDINAL_CLK;
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| 		} else {
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| 			syncprd = SDW_SHIM_SYNC_SYNCPRD_VAL_38_4;
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| 			clock_source = SDW_SHIM2_MLCS_XTAL_CLK;
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| 		}
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| 	} else {
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| 		syncprd = SDW_SHIM_SYNC_SYNCPRD_VAL_96;
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| 		clock_source = SDW_SHIM2_MLCS_AUDIO_PLL_CLK;
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| 	}
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| 
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| 	mutex_lock(sdw->link_res->shim_lock);
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| 
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| 	ret = hdac_bus_eml_sdw_power_up_unlocked(sdw->link_res->hbus, link_id);
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| 	if (ret < 0) {
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| 		dev_err(sdw->cdns.dev, "%s: hdac_bus_eml_sdw_power_up failed: %d\n",
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| 			__func__, ret);
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| 		goto out;
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| 	}
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| 
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| 	intel_shim_vs_set_clock_source(sdw, clock_source);
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| 
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| 	if (!*shim_mask) {
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| 		/* we first need to program the SyncPRD/CPU registers */
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| 		dev_dbg(sdw->cdns.dev, "first link up, programming SYNCPRD\n");
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| 
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| 		ret =  hdac_bus_eml_sdw_set_syncprd_unlocked(sdw->link_res->hbus, syncprd);
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| 		if (ret < 0) {
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| 			dev_err(sdw->cdns.dev, "%s: hdac_bus_eml_sdw_set_syncprd failed: %d\n",
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| 				__func__, ret);
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| 			goto out;
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| 		}
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| 
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| 		/* SYNCPU will change once link is active */
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| 		ret =  hdac_bus_eml_sdw_wait_syncpu_unlocked(sdw->link_res->hbus);
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| 		if (ret < 0) {
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| 			dev_err(sdw->cdns.dev, "%s: hdac_bus_eml_sdw_wait_syncpu failed: %d\n",
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| 				__func__, ret);
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| 			goto out;
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| 		}
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| 	}
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| 
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| 	*shim_mask |= BIT(link_id);
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| 
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| 	sdw->cdns.link_up = true;
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| 
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| 	intel_shim_vs_init(sdw);
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| 
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| out:
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| 	mutex_unlock(sdw->link_res->shim_lock);
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| 
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| 	return ret;
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| }
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| 
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| static int intel_link_power_down(struct sdw_intel *sdw)
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| {
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| 	u32 *shim_mask = sdw->link_res->shim_mask;
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| 	unsigned int link_id = sdw->instance;
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| 	int ret;
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| 
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| 	mutex_lock(sdw->link_res->shim_lock);
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| 
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| 	sdw->cdns.link_up = false;
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| 
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| 	*shim_mask &= ~BIT(link_id);
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| 
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| 	ret = hdac_bus_eml_sdw_power_down_unlocked(sdw->link_res->hbus, link_id);
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| 	if (ret < 0) {
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| 		dev_err(sdw->cdns.dev, "%s: hdac_bus_eml_sdw_power_down failed: %d\n",
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| 			__func__, ret);
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| 
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| 		/*
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| 		 * we leave the sdw->cdns.link_up flag as false since we've disabled
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| 		 * the link at this point and cannot handle interrupts any longer.
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| 		 */
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| 	}
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| 
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| 	mutex_unlock(sdw->link_res->shim_lock);
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| 
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| 	return ret;
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| }
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| 
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| static void intel_sync_arm(struct sdw_intel *sdw)
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| {
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| 	unsigned int link_id = sdw->instance;
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| 
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| 	mutex_lock(sdw->link_res->shim_lock);
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| 
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| 	hdac_bus_eml_sdw_sync_arm_unlocked(sdw->link_res->hbus, link_id);
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| 
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| 	mutex_unlock(sdw->link_res->shim_lock);
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| }
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| 
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| static int intel_sync_go_unlocked(struct sdw_intel *sdw)
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| {
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| 	int ret;
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| 
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| 	ret = hdac_bus_eml_sdw_sync_go_unlocked(sdw->link_res->hbus);
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| 	if (ret < 0)
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| 		dev_err(sdw->cdns.dev, "%s: SyncGO clear failed: %d\n", __func__, ret);
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| 
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| 	return ret;
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| }
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| 
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| static int intel_sync_go(struct sdw_intel *sdw)
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| {
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| 	int ret;
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| 
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| 	mutex_lock(sdw->link_res->shim_lock);
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| 
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| 	ret = intel_sync_go_unlocked(sdw);
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| 
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| 	mutex_unlock(sdw->link_res->shim_lock);
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| 
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| 	return ret;
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| }
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| 
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| static bool intel_check_cmdsync_unlocked(struct sdw_intel *sdw)
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| {
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| 	return hdac_bus_eml_sdw_check_cmdsync_unlocked(sdw->link_res->hbus);
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| }
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| 
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| /* DAI callbacks */
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| static int intel_params_stream(struct sdw_intel *sdw,
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| 			       struct snd_pcm_substream *substream,
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| 			       struct snd_soc_dai *dai,
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| 			       struct snd_pcm_hw_params *hw_params,
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| 			       int link_id, int alh_stream_id)
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| {
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| 	struct sdw_intel_link_res *res = sdw->link_res;
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| 	struct sdw_intel_stream_params_data params_data;
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| 
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| 	params_data.substream = substream;
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| 	params_data.dai = dai;
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| 	params_data.hw_params = hw_params;
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| 	params_data.link_id = link_id;
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| 	params_data.alh_stream_id = alh_stream_id;
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| 
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| 	if (res->ops && res->ops->params_stream && res->dev)
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| 		return res->ops->params_stream(res->dev,
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| 					       ¶ms_data);
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| 	return -EIO;
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| }
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| 
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| static int intel_free_stream(struct sdw_intel *sdw,
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| 			     struct snd_pcm_substream *substream,
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| 			     struct snd_soc_dai *dai,
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| 			     int link_id)
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| 
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| {
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| 	struct sdw_intel_link_res *res = sdw->link_res;
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| 	struct sdw_intel_stream_free_data free_data;
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| 
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| 	free_data.substream = substream;
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| 	free_data.dai = dai;
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| 	free_data.link_id = link_id;
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| 
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| 	if (res->ops && res->ops->free_stream && res->dev)
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| 		return res->ops->free_stream(res->dev,
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| 					     &free_data);
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| 
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| 	return 0;
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| }
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| 
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| /*
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|  * DAI operations
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|  */
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| static int intel_hw_params(struct snd_pcm_substream *substream,
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| 			   struct snd_pcm_hw_params *params,
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| 			   struct snd_soc_dai *dai)
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| {
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| 	struct sdw_cdns *cdns = snd_soc_dai_get_drvdata(dai);
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| 	struct sdw_intel *sdw = cdns_to_intel(cdns);
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| 	struct sdw_cdns_dai_runtime *dai_runtime;
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| 	struct sdw_cdns_pdi *pdi;
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| 	struct sdw_stream_config sconfig;
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| 	int ch, dir;
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| 	int ret;
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| 
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| 	dai_runtime = cdns->dai_runtime_array[dai->id];
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| 	if (!dai_runtime)
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| 		return -EIO;
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| 
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| 	ch = params_channels(params);
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| 	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
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| 		dir = SDW_DATA_DIR_RX;
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| 	else
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| 		dir = SDW_DATA_DIR_TX;
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| 
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| 	pdi = sdw_cdns_alloc_pdi(cdns, &cdns->pcm, ch, dir, dai->id);
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| 	if (!pdi)
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| 		return -EINVAL;
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| 
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| 	/* use same definitions for alh_id as previous generations */
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| 	pdi->intel_alh_id = (sdw->instance * 16) + pdi->num + 3;
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| 	if (pdi->num >= 2)
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| 		pdi->intel_alh_id += 2;
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| 
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| 	/* the SHIM will be configured in the callback functions */
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| 
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| 	sdw_cdns_config_stream(cdns, ch, dir, pdi);
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| 
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| 	/* store pdi and state, may be needed in prepare step */
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| 	dai_runtime->paused = false;
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| 	dai_runtime->suspended = false;
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| 	dai_runtime->pdi = pdi;
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| 
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| 	/* Inform DSP about PDI stream number */
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| 	ret = intel_params_stream(sdw, substream, dai, params,
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| 				  sdw->instance,
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| 				  pdi->intel_alh_id);
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| 	if (ret)
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| 		return ret;
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| 
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| 	sconfig.direction = dir;
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| 	sconfig.ch_count = ch;
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| 	sconfig.frame_rate = params_rate(params);
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| 	sconfig.type = dai_runtime->stream_type;
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| 
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| 	sconfig.bps = snd_pcm_format_width(params_format(params));
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| 
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| 	/* Port configuration */
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| 	struct sdw_port_config *pconfig __free(kfree) = kzalloc(sizeof(*pconfig),
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| 								GFP_KERNEL);
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| 	if (!pconfig)
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| 		return -ENOMEM;
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| 
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| 	pconfig->num = pdi->num;
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| 	pconfig->ch_mask = (1 << ch) - 1;
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| 
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| 	ret = sdw_stream_add_master(&cdns->bus, &sconfig,
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| 				    pconfig, 1, dai_runtime->stream);
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| 	if (ret)
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| 		dev_err(cdns->dev, "add master to stream failed:%d\n", ret);
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| 
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| 	return ret;
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| }
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| 
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| static int intel_prepare(struct snd_pcm_substream *substream,
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| 			 struct snd_soc_dai *dai)
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| {
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| 	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
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| 	struct sdw_cdns *cdns = snd_soc_dai_get_drvdata(dai);
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| 	struct sdw_intel *sdw = cdns_to_intel(cdns);
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| 	struct sdw_cdns_dai_runtime *dai_runtime;
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| 	struct snd_pcm_hw_params *hw_params;
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| 	int ch, dir;
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| 
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| 	dai_runtime = cdns->dai_runtime_array[dai->id];
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| 	if (!dai_runtime) {
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| 		dev_err(dai->dev, "failed to get dai runtime in %s\n",
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| 			__func__);
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| 		return -EIO;
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| 	}
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| 
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| 	hw_params = &rtd->dpcm[substream->stream].hw_params;
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| 	if (dai_runtime->suspended) {
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| 		dai_runtime->suspended = false;
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| 
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| 		/*
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| 		 * .prepare() is called after system resume, where we
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| 		 * need to reinitialize the SHIM/ALH/Cadence IP.
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| 		 * .prepare() is also called to deal with underflows,
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| 		 * but in those cases we cannot touch ALH/SHIM
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| 		 * registers
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| 		 */
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| 
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| 		/* configure stream */
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| 		ch = params_channels(hw_params);
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| 		if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
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| 			dir = SDW_DATA_DIR_RX;
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| 		else
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| 			dir = SDW_DATA_DIR_TX;
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| 
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| 		/* the SHIM will be configured in the callback functions */
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| 
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| 		sdw_cdns_config_stream(cdns, ch, dir, dai_runtime->pdi);
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| 	}
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| 
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| 	/* Inform DSP about PDI stream number */
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| 	return intel_params_stream(sdw, substream, dai, hw_params, sdw->instance,
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| 				   dai_runtime->pdi->intel_alh_id);
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| }
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| 
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| static int
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| intel_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
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| {
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| 	struct sdw_cdns *cdns = snd_soc_dai_get_drvdata(dai);
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| 	struct sdw_intel *sdw = cdns_to_intel(cdns);
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| 	struct sdw_cdns_dai_runtime *dai_runtime;
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| 	int ret;
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| 
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| 	dai_runtime = cdns->dai_runtime_array[dai->id];
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| 	if (!dai_runtime)
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| 		return -EIO;
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| 
 | |
| 	/*
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| 	 * The sdw stream state will transition to RELEASED when stream->
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| 	 * master_list is empty. So the stream state will transition to
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| 	 * DEPREPARED for the first cpu-dai and to RELEASED for the last
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| 	 * cpu-dai.
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| 	 */
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| 	ret = sdw_stream_remove_master(&cdns->bus, dai_runtime->stream);
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| 	if (ret < 0) {
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| 		dev_err(dai->dev, "remove master from stream %s failed: %d\n",
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| 			dai_runtime->stream->name, ret);
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| 		return ret;
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| 	}
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| 
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| 	ret = intel_free_stream(sdw, substream, dai, sdw->instance);
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| 	if (ret < 0) {
 | |
| 		dev_err(dai->dev, "intel_free_stream: failed %d\n", ret);
 | |
| 		return ret;
 | |
| 	}
 | |
| 
 | |
| 	dai_runtime->pdi = NULL;
 | |
| 
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| static int intel_pcm_set_sdw_stream(struct snd_soc_dai *dai,
 | |
| 				    void *stream, int direction)
 | |
| {
 | |
| 	return cdns_set_sdw_stream(dai, stream, direction);
 | |
| }
 | |
| 
 | |
| static void *intel_get_sdw_stream(struct snd_soc_dai *dai,
 | |
| 				  int direction)
 | |
| {
 | |
| 	struct sdw_cdns *cdns = snd_soc_dai_get_drvdata(dai);
 | |
| 	struct sdw_cdns_dai_runtime *dai_runtime;
 | |
| 
 | |
| 	dai_runtime = cdns->dai_runtime_array[dai->id];
 | |
| 	if (!dai_runtime)
 | |
| 		return ERR_PTR(-EINVAL);
 | |
| 
 | |
| 	return dai_runtime->stream;
 | |
| }
 | |
| 
 | |
| static int intel_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai)
 | |
| {
 | |
| 	struct sdw_cdns *cdns = snd_soc_dai_get_drvdata(dai);
 | |
| 	struct sdw_intel *sdw = cdns_to_intel(cdns);
 | |
| 	struct sdw_intel_link_res *res = sdw->link_res;
 | |
| 	struct sdw_cdns_dai_runtime *dai_runtime;
 | |
| 	int ret = 0;
 | |
| 
 | |
| 	/*
 | |
| 	 * The .trigger callback is used to program HDaudio DMA and send required IPC to audio
 | |
| 	 * firmware.
 | |
| 	 */
 | |
| 	if (res->ops && res->ops->trigger) {
 | |
| 		ret = res->ops->trigger(substream, cmd, dai);
 | |
| 		if (ret < 0)
 | |
| 			return ret;
 | |
| 	}
 | |
| 
 | |
| 	dai_runtime = cdns->dai_runtime_array[dai->id];
 | |
| 	if (!dai_runtime) {
 | |
| 		dev_err(dai->dev, "failed to get dai runtime in %s\n",
 | |
| 			__func__);
 | |
| 		return -EIO;
 | |
| 	}
 | |
| 
 | |
| 	switch (cmd) {
 | |
| 	case SNDRV_PCM_TRIGGER_SUSPEND:
 | |
| 
 | |
| 		/*
 | |
| 		 * The .prepare callback is used to deal with xruns and resume operations.
 | |
| 		 * In the case of xruns, the DMAs and SHIM registers cannot be touched,
 | |
| 		 * but for resume operations the DMAs and SHIM registers need to be initialized.
 | |
| 		 * the .trigger callback is used to track the suspend case only.
 | |
| 		 */
 | |
| 
 | |
| 		dai_runtime->suspended = true;
 | |
| 
 | |
| 		break;
 | |
| 
 | |
| 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 | |
| 		dai_runtime->paused = true;
 | |
| 		break;
 | |
| 	case SNDRV_PCM_TRIGGER_STOP:
 | |
| 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 | |
| 		dai_runtime->paused = false;
 | |
| 		break;
 | |
| 	default:
 | |
| 		break;
 | |
| 	}
 | |
| 
 | |
| 	return ret;
 | |
| }
 | |
| 
 | |
| static const struct snd_soc_dai_ops intel_pcm_dai_ops = {
 | |
| 	.hw_params = intel_hw_params,
 | |
| 	.prepare = intel_prepare,
 | |
| 	.hw_free = intel_hw_free,
 | |
| 	.trigger = intel_trigger,
 | |
| 	.set_stream = intel_pcm_set_sdw_stream,
 | |
| 	.get_stream = intel_get_sdw_stream,
 | |
| };
 | |
| 
 | |
| static const struct snd_soc_component_driver dai_component = {
 | |
| 	.name			= "soundwire",
 | |
| };
 | |
| 
 | |
| /*
 | |
|  * PDI routines
 | |
|  */
 | |
| static void intel_pdi_init(struct sdw_intel *sdw,
 | |
| 			   struct sdw_cdns_stream_config *config)
 | |
| {
 | |
| 	void __iomem *shim = sdw->link_res->shim;
 | |
| 	int pcm_cap;
 | |
| 
 | |
| 	/* PCM Stream Capability */
 | |
| 	pcm_cap = intel_readw(shim, SDW_SHIM2_PCMSCAP);
 | |
| 
 | |
| 	config->pcm_bd = FIELD_GET(SDW_SHIM2_PCMSCAP_BSS, pcm_cap);
 | |
| 	config->pcm_in = FIELD_GET(SDW_SHIM2_PCMSCAP_ISS, pcm_cap);
 | |
| 	config->pcm_out = FIELD_GET(SDW_SHIM2_PCMSCAP_ISS, pcm_cap);
 | |
| 
 | |
| 	dev_dbg(sdw->cdns.dev, "PCM cap bd:%d in:%d out:%d\n",
 | |
| 		config->pcm_bd, config->pcm_in, config->pcm_out);
 | |
| }
 | |
| 
 | |
| static int
 | |
| intel_pdi_get_ch_cap(struct sdw_intel *sdw, unsigned int pdi_num)
 | |
| {
 | |
| 	void __iomem *shim = sdw->link_res->shim;
 | |
| 
 | |
| 	/* zero based values for channel count in register */
 | |
| 	return intel_readw(shim, SDW_SHIM2_PCMSYCHC(pdi_num)) + 1;
 | |
| }
 | |
| 
 | |
| static void intel_pdi_get_ch_update(struct sdw_intel *sdw,
 | |
| 				    struct sdw_cdns_pdi *pdi,
 | |
| 				    unsigned int num_pdi,
 | |
| 				    unsigned int *num_ch)
 | |
| {
 | |
| 	int ch_count = 0;
 | |
| 	int i;
 | |
| 
 | |
| 	for (i = 0; i < num_pdi; i++) {
 | |
| 		pdi->ch_count = intel_pdi_get_ch_cap(sdw, pdi->num);
 | |
| 		ch_count += pdi->ch_count;
 | |
| 		pdi++;
 | |
| 	}
 | |
| 
 | |
| 	*num_ch = ch_count;
 | |
| }
 | |
| 
 | |
| static void intel_pdi_stream_ch_update(struct sdw_intel *sdw,
 | |
| 				       struct sdw_cdns_streams *stream)
 | |
| {
 | |
| 	intel_pdi_get_ch_update(sdw, stream->bd, stream->num_bd,
 | |
| 				&stream->num_ch_bd);
 | |
| 
 | |
| 	intel_pdi_get_ch_update(sdw, stream->in, stream->num_in,
 | |
| 				&stream->num_ch_in);
 | |
| 
 | |
| 	intel_pdi_get_ch_update(sdw, stream->out, stream->num_out,
 | |
| 				&stream->num_ch_out);
 | |
| }
 | |
| 
 | |
| static int intel_create_dai(struct sdw_cdns *cdns,
 | |
| 			    struct snd_soc_dai_driver *dais,
 | |
| 			    enum intel_pdi_type type,
 | |
| 			    u32 num, u32 off, u32 max_ch)
 | |
| {
 | |
| 	int i;
 | |
| 
 | |
| 	if (!num)
 | |
| 		return 0;
 | |
| 
 | |
| 	for (i = off; i < (off + num); i++) {
 | |
| 		dais[i].name = devm_kasprintf(cdns->dev, GFP_KERNEL,
 | |
| 					      "SDW%d Pin%d",
 | |
| 					      cdns->instance, i);
 | |
| 		if (!dais[i].name)
 | |
| 			return -ENOMEM;
 | |
| 
 | |
| 		if (type == INTEL_PDI_BD || type == INTEL_PDI_OUT) {
 | |
| 			dais[i].playback.channels_min = 1;
 | |
| 			dais[i].playback.channels_max = max_ch;
 | |
| 		}
 | |
| 
 | |
| 		if (type == INTEL_PDI_BD || type == INTEL_PDI_IN) {
 | |
| 			dais[i].capture.channels_min = 1;
 | |
| 			dais[i].capture.channels_max = max_ch;
 | |
| 		}
 | |
| 
 | |
| 		dais[i].ops = &intel_pcm_dai_ops;
 | |
| 	}
 | |
| 
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| static int intel_register_dai(struct sdw_intel *sdw)
 | |
| {
 | |
| 	struct sdw_cdns_dai_runtime **dai_runtime_array;
 | |
| 	struct sdw_cdns_stream_config config;
 | |
| 	struct sdw_cdns *cdns = &sdw->cdns;
 | |
| 	struct sdw_cdns_streams *stream;
 | |
| 	struct snd_soc_dai_driver *dais;
 | |
| 	int num_dai;
 | |
| 	int ret;
 | |
| 	int off = 0;
 | |
| 
 | |
| 	/* Read the PDI config and initialize cadence PDI */
 | |
| 	intel_pdi_init(sdw, &config);
 | |
| 	ret = sdw_cdns_pdi_init(cdns, config);
 | |
| 	if (ret)
 | |
| 		return ret;
 | |
| 
 | |
| 	intel_pdi_stream_ch_update(sdw, &sdw->cdns.pcm);
 | |
| 
 | |
| 	/* DAIs are created based on total number of PDIs supported */
 | |
| 	num_dai = cdns->pcm.num_pdi;
 | |
| 
 | |
| 	dai_runtime_array = devm_kcalloc(cdns->dev, num_dai,
 | |
| 					 sizeof(struct sdw_cdns_dai_runtime *),
 | |
| 					 GFP_KERNEL);
 | |
| 	if (!dai_runtime_array)
 | |
| 		return -ENOMEM;
 | |
| 	cdns->dai_runtime_array = dai_runtime_array;
 | |
| 
 | |
| 	dais = devm_kcalloc(cdns->dev, num_dai, sizeof(*dais), GFP_KERNEL);
 | |
| 	if (!dais)
 | |
| 		return -ENOMEM;
 | |
| 
 | |
| 	/* Create PCM DAIs */
 | |
| 	stream = &cdns->pcm;
 | |
| 
 | |
| 	ret = intel_create_dai(cdns, dais, INTEL_PDI_IN, cdns->pcm.num_in,
 | |
| 			       off, stream->num_ch_in);
 | |
| 	if (ret)
 | |
| 		return ret;
 | |
| 
 | |
| 	off += cdns->pcm.num_in;
 | |
| 	ret = intel_create_dai(cdns, dais, INTEL_PDI_OUT, cdns->pcm.num_out,
 | |
| 			       off, stream->num_ch_out);
 | |
| 	if (ret)
 | |
| 		return ret;
 | |
| 
 | |
| 	off += cdns->pcm.num_out;
 | |
| 	ret = intel_create_dai(cdns, dais, INTEL_PDI_BD, cdns->pcm.num_bd,
 | |
| 			       off, stream->num_ch_bd);
 | |
| 	if (ret)
 | |
| 		return ret;
 | |
| 
 | |
| 	return devm_snd_soc_register_component(cdns->dev, &dai_component,
 | |
| 					       dais, num_dai);
 | |
| }
 | |
| 
 | |
| static void intel_program_sdi(struct sdw_intel *sdw, int dev_num)
 | |
| {
 | |
| 	int ret;
 | |
| 
 | |
| 	ret = hdac_bus_eml_sdw_set_lsdiid(sdw->link_res->hbus, sdw->instance, dev_num);
 | |
| 	if (ret < 0)
 | |
| 		dev_err(sdw->cdns.dev, "%s: could not set lsdiid for link %d %d\n",
 | |
| 			__func__, sdw->instance, dev_num);
 | |
| }
 | |
| 
 | |
| static int intel_get_link_count(struct sdw_intel *sdw)
 | |
| {
 | |
| 	int ret;
 | |
| 
 | |
| 	ret = hdac_bus_eml_get_count(sdw->link_res->hbus, true, AZX_REG_ML_LEPTR_ID_SDW);
 | |
| 	if (!ret) {
 | |
| 		dev_err(sdw->cdns.dev, "%s: could not retrieve link count\n", __func__);
 | |
| 		return -ENODEV;
 | |
| 	}
 | |
| 
 | |
| 	if (ret > SDW_INTEL_MAX_LINKS) {
 | |
| 		dev_err(sdw->cdns.dev, "%s: link count %d exceed max %d\n", __func__, ret, SDW_INTEL_MAX_LINKS);
 | |
| 		return -EINVAL;
 | |
| 	}
 | |
| 
 | |
| 	return ret;
 | |
| }
 | |
| 
 | |
| const struct sdw_intel_hw_ops sdw_intel_lnl_hw_ops = {
 | |
| 	.debugfs_init = intel_ace2x_debugfs_init,
 | |
| 	.debugfs_exit = intel_ace2x_debugfs_exit,
 | |
| 
 | |
| 	.get_link_count = intel_get_link_count,
 | |
| 
 | |
| 	.register_dai = intel_register_dai,
 | |
| 
 | |
| 	.check_clock_stop = intel_check_clock_stop,
 | |
| 	.start_bus = intel_start_bus,
 | |
| 	.start_bus_after_reset = intel_start_bus_after_reset,
 | |
| 	.start_bus_after_clock_stop = intel_start_bus_after_clock_stop,
 | |
| 	.stop_bus = intel_stop_bus,
 | |
| 
 | |
| 	.link_power_up = intel_link_power_up,
 | |
| 	.link_power_down = intel_link_power_down,
 | |
| 
 | |
| 	.shim_check_wake = intel_shim_check_wake,
 | |
| 	.shim_wake = intel_shim_wake,
 | |
| 
 | |
| 	.pre_bank_switch = intel_pre_bank_switch,
 | |
| 	.post_bank_switch = intel_post_bank_switch,
 | |
| 
 | |
| 	.sync_arm = intel_sync_arm,
 | |
| 	.sync_go_unlocked = intel_sync_go_unlocked,
 | |
| 	.sync_go = intel_sync_go,
 | |
| 	.sync_check_cmdsync_unlocked = intel_check_cmdsync_unlocked,
 | |
| 
 | |
| 	.program_sdi = intel_program_sdi,
 | |
| };
 | |
| EXPORT_SYMBOL_NS(sdw_intel_lnl_hw_ops, SOUNDWIRE_INTEL);
 | |
| 
 | |
| MODULE_IMPORT_NS(SND_SOC_SOF_HDA_MLINK);
 |