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Diffstat (limited to 'sound/soc/intel/skylake/skl-messages.c')
-rw-r--r--sound/soc/intel/skylake/skl-messages.c884
1 files changed, 884 insertions, 0 deletions
diff --git a/sound/soc/intel/skylake/skl-messages.c b/sound/soc/intel/skylake/skl-messages.c
new file mode 100644
index 000000000000..826d4fd8930a
--- /dev/null
+++ b/sound/soc/intel/skylake/skl-messages.c
@@ -0,0 +1,884 @@
+/*
+ * skl-message.c - HDA DSP interface for FW registration, Pipe and Module
+ * configurations
+ *
+ * Copyright (C) 2015 Intel Corp
+ * Author:Rafal Redzimski <rafal.f.redzimski@intel.com>
+ * Jeeja KP <jeeja.kp@intel.com>
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * 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.
+ */
+
+#include <linux/slab.h>
+#include <linux/pci.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include "skl-sst-dsp.h"
+#include "skl-sst-ipc.h"
+#include "skl.h"
+#include "../common/sst-dsp.h"
+#include "../common/sst-dsp-priv.h"
+#include "skl-topology.h"
+#include "skl-tplg-interface.h"
+
+static int skl_alloc_dma_buf(struct device *dev,
+ struct snd_dma_buffer *dmab, size_t size)
+{
+ struct hdac_ext_bus *ebus = dev_get_drvdata(dev);
+ struct hdac_bus *bus = ebus_to_hbus(ebus);
+
+ if (!bus)
+ return -ENODEV;
+
+ return bus->io_ops->dma_alloc_pages(bus, SNDRV_DMA_TYPE_DEV, size, dmab);
+}
+
+static int skl_free_dma_buf(struct device *dev, struct snd_dma_buffer *dmab)
+{
+ struct hdac_ext_bus *ebus = dev_get_drvdata(dev);
+ struct hdac_bus *bus = ebus_to_hbus(ebus);
+
+ if (!bus)
+ return -ENODEV;
+
+ bus->io_ops->dma_free_pages(bus, dmab);
+
+ return 0;
+}
+
+int skl_init_dsp(struct skl *skl)
+{
+ void __iomem *mmio_base;
+ struct hdac_ext_bus *ebus = &skl->ebus;
+ struct hdac_bus *bus = ebus_to_hbus(ebus);
+ int irq = bus->irq;
+ struct skl_dsp_loader_ops loader_ops;
+ int ret;
+
+ loader_ops.alloc_dma_buf = skl_alloc_dma_buf;
+ loader_ops.free_dma_buf = skl_free_dma_buf;
+
+ /* enable ppcap interrupt */
+ snd_hdac_ext_bus_ppcap_enable(&skl->ebus, true);
+ snd_hdac_ext_bus_ppcap_int_enable(&skl->ebus, true);
+
+ /* read the BAR of the ADSP MMIO */
+ mmio_base = pci_ioremap_bar(skl->pci, 4);
+ if (mmio_base == NULL) {
+ dev_err(bus->dev, "ioremap error\n");
+ return -ENXIO;
+ }
+
+ ret = skl_sst_dsp_init(bus->dev, mmio_base, irq,
+ loader_ops, &skl->skl_sst);
+
+ dev_dbg(bus->dev, "dsp registration status=%d\n", ret);
+
+ return ret;
+}
+
+void skl_free_dsp(struct skl *skl)
+{
+ struct hdac_ext_bus *ebus = &skl->ebus;
+ struct hdac_bus *bus = ebus_to_hbus(ebus);
+ struct skl_sst *ctx = skl->skl_sst;
+
+ /* disable ppcap interrupt */
+ snd_hdac_ext_bus_ppcap_int_enable(&skl->ebus, false);
+
+ skl_sst_dsp_cleanup(bus->dev, ctx);
+ if (ctx->dsp->addr.lpe)
+ iounmap(ctx->dsp->addr.lpe);
+}
+
+int skl_suspend_dsp(struct skl *skl)
+{
+ struct skl_sst *ctx = skl->skl_sst;
+ int ret;
+
+ /* if ppcap is not supported return 0 */
+ if (!skl->ebus.ppcap)
+ return 0;
+
+ ret = skl_dsp_sleep(ctx->dsp);
+ if (ret < 0)
+ return ret;
+
+ /* disable ppcap interrupt */
+ snd_hdac_ext_bus_ppcap_int_enable(&skl->ebus, false);
+ snd_hdac_ext_bus_ppcap_enable(&skl->ebus, false);
+
+ return 0;
+}
+
+int skl_resume_dsp(struct skl *skl)
+{
+ struct skl_sst *ctx = skl->skl_sst;
+
+ /* if ppcap is not supported return 0 */
+ if (!skl->ebus.ppcap)
+ return 0;
+
+ /* enable ppcap interrupt */
+ snd_hdac_ext_bus_ppcap_enable(&skl->ebus, true);
+ snd_hdac_ext_bus_ppcap_int_enable(&skl->ebus, true);
+
+ return skl_dsp_wake(ctx->dsp);
+}
+
+enum skl_bitdepth skl_get_bit_depth(int params)
+{
+ switch (params) {
+ case 8:
+ return SKL_DEPTH_8BIT;
+
+ case 16:
+ return SKL_DEPTH_16BIT;
+
+ case 24:
+ return SKL_DEPTH_24BIT;
+
+ case 32:
+ return SKL_DEPTH_32BIT;
+
+ default:
+ return SKL_DEPTH_INVALID;
+
+ }
+}
+
+static u32 skl_create_channel_map(enum skl_ch_cfg ch_cfg)
+{
+ u32 config;
+
+ switch (ch_cfg) {
+ case SKL_CH_CFG_MONO:
+ config = (0xFFFFFFF0 | SKL_CHANNEL_LEFT);
+ break;
+
+ case SKL_CH_CFG_STEREO:
+ config = (0xFFFFFF00 | SKL_CHANNEL_LEFT
+ | (SKL_CHANNEL_RIGHT << 4));
+ break;
+
+ case SKL_CH_CFG_2_1:
+ config = (0xFFFFF000 | SKL_CHANNEL_LEFT
+ | (SKL_CHANNEL_RIGHT << 4)
+ | (SKL_CHANNEL_LFE << 8));
+ break;
+
+ case SKL_CH_CFG_3_0:
+ config = (0xFFFFF000 | SKL_CHANNEL_LEFT
+ | (SKL_CHANNEL_CENTER << 4)
+ | (SKL_CHANNEL_RIGHT << 8));
+ break;
+
+ case SKL_CH_CFG_3_1:
+ config = (0xFFFF0000 | SKL_CHANNEL_LEFT
+ | (SKL_CHANNEL_CENTER << 4)
+ | (SKL_CHANNEL_RIGHT << 8)
+ | (SKL_CHANNEL_LFE << 12));
+ break;
+
+ case SKL_CH_CFG_QUATRO:
+ config = (0xFFFF0000 | SKL_CHANNEL_LEFT
+ | (SKL_CHANNEL_RIGHT << 4)
+ | (SKL_CHANNEL_LEFT_SURROUND << 8)
+ | (SKL_CHANNEL_RIGHT_SURROUND << 12));
+ break;
+
+ case SKL_CH_CFG_4_0:
+ config = (0xFFFF0000 | SKL_CHANNEL_LEFT
+ | (SKL_CHANNEL_CENTER << 4)
+ | (SKL_CHANNEL_RIGHT << 8)
+ | (SKL_CHANNEL_CENTER_SURROUND << 12));
+ break;
+
+ case SKL_CH_CFG_5_0:
+ config = (0xFFF00000 | SKL_CHANNEL_LEFT
+ | (SKL_CHANNEL_CENTER << 4)
+ | (SKL_CHANNEL_RIGHT << 8)
+ | (SKL_CHANNEL_LEFT_SURROUND << 12)
+ | (SKL_CHANNEL_RIGHT_SURROUND << 16));
+ break;
+
+ case SKL_CH_CFG_5_1:
+ config = (0xFF000000 | SKL_CHANNEL_CENTER
+ | (SKL_CHANNEL_LEFT << 4)
+ | (SKL_CHANNEL_RIGHT << 8)
+ | (SKL_CHANNEL_LEFT_SURROUND << 12)
+ | (SKL_CHANNEL_RIGHT_SURROUND << 16)
+ | (SKL_CHANNEL_LFE << 20));
+ break;
+
+ case SKL_CH_CFG_DUAL_MONO:
+ config = (0xFFFFFF00 | SKL_CHANNEL_LEFT
+ | (SKL_CHANNEL_LEFT << 4));
+ break;
+
+ case SKL_CH_CFG_I2S_DUAL_STEREO_0:
+ config = (0xFFFFFF00 | SKL_CHANNEL_LEFT
+ | (SKL_CHANNEL_RIGHT << 4));
+ break;
+
+ case SKL_CH_CFG_I2S_DUAL_STEREO_1:
+ config = (0xFFFF00FF | (SKL_CHANNEL_LEFT << 8)
+ | (SKL_CHANNEL_RIGHT << 12));
+ break;
+
+ default:
+ config = 0xFFFFFFFF;
+ break;
+
+ }
+
+ return config;
+}
+
+/*
+ * Each module in DSP expects a base module configuration, which consists of
+ * PCM format information, which we calculate in driver and resource values
+ * which are read from widget information passed through topology binary
+ * This is send when we create a module with INIT_INSTANCE IPC msg
+ */
+static void skl_set_base_module_format(struct skl_sst *ctx,
+ struct skl_module_cfg *mconfig,
+ struct skl_base_cfg *base_cfg)
+{
+ struct skl_module_fmt *format = &mconfig->in_fmt;
+
+ base_cfg->audio_fmt.number_of_channels = (u8)format->channels;
+
+ base_cfg->audio_fmt.s_freq = format->s_freq;
+ base_cfg->audio_fmt.bit_depth = format->bit_depth;
+ base_cfg->audio_fmt.valid_bit_depth = format->valid_bit_depth;
+ base_cfg->audio_fmt.ch_cfg = format->ch_cfg;
+
+ dev_dbg(ctx->dev, "bit_depth=%x valid_bd=%x ch_config=%x\n",
+ format->bit_depth, format->valid_bit_depth,
+ format->ch_cfg);
+
+ base_cfg->audio_fmt.channel_map = skl_create_channel_map(
+ base_cfg->audio_fmt.ch_cfg);
+
+ base_cfg->audio_fmt.interleaving = SKL_INTERLEAVING_PER_CHANNEL;
+
+ base_cfg->cps = mconfig->mcps;
+ base_cfg->ibs = mconfig->ibs;
+ base_cfg->obs = mconfig->obs;
+}
+
+/*
+ * Copies copier capabilities into copier module and updates copier module
+ * config size.
+ */
+static void skl_copy_copier_caps(struct skl_module_cfg *mconfig,
+ struct skl_cpr_cfg *cpr_mconfig)
+{
+ if (mconfig->formats_config.caps_size == 0)
+ return;
+
+ memcpy(cpr_mconfig->gtw_cfg.config_data,
+ mconfig->formats_config.caps,
+ mconfig->formats_config.caps_size);
+
+ cpr_mconfig->gtw_cfg.config_length =
+ (mconfig->formats_config.caps_size) / 4;
+}
+
+/*
+ * Calculate the gatewat settings required for copier module, type of
+ * gateway and index of gateway to use
+ */
+static void skl_setup_cpr_gateway_cfg(struct skl_sst *ctx,
+ struct skl_module_cfg *mconfig,
+ struct skl_cpr_cfg *cpr_mconfig)
+{
+ union skl_connector_node_id node_id = {0};
+ struct skl_pipe_params *params = mconfig->pipe->p_params;
+
+ switch (mconfig->dev_type) {
+ case SKL_DEVICE_BT:
+ node_id.node.dma_type =
+ (SKL_CONN_SOURCE == mconfig->hw_conn_type) ?
+ SKL_DMA_I2S_LINK_OUTPUT_CLASS :
+ SKL_DMA_I2S_LINK_INPUT_CLASS;
+ node_id.node.vindex = params->host_dma_id +
+ (mconfig->vbus_id << 3);
+ break;
+
+ case SKL_DEVICE_I2S:
+ node_id.node.dma_type =
+ (SKL_CONN_SOURCE == mconfig->hw_conn_type) ?
+ SKL_DMA_I2S_LINK_OUTPUT_CLASS :
+ SKL_DMA_I2S_LINK_INPUT_CLASS;
+ node_id.node.vindex = params->host_dma_id +
+ (mconfig->time_slot << 1) +
+ (mconfig->vbus_id << 3);
+ break;
+
+ case SKL_DEVICE_DMIC:
+ node_id.node.dma_type = SKL_DMA_DMIC_LINK_INPUT_CLASS;
+ node_id.node.vindex = mconfig->vbus_id +
+ (mconfig->time_slot);
+ break;
+
+ case SKL_DEVICE_HDALINK:
+ node_id.node.dma_type =
+ (SKL_CONN_SOURCE == mconfig->hw_conn_type) ?
+ SKL_DMA_HDA_LINK_OUTPUT_CLASS :
+ SKL_DMA_HDA_LINK_INPUT_CLASS;
+ node_id.node.vindex = params->link_dma_id;
+ break;
+
+ default:
+ node_id.node.dma_type =
+ (SKL_CONN_SOURCE == mconfig->hw_conn_type) ?
+ SKL_DMA_HDA_HOST_OUTPUT_CLASS :
+ SKL_DMA_HDA_HOST_INPUT_CLASS;
+ node_id.node.vindex = params->host_dma_id;
+ break;
+ }
+
+ cpr_mconfig->gtw_cfg.node_id = node_id.val;
+
+ if (SKL_CONN_SOURCE == mconfig->hw_conn_type)
+ cpr_mconfig->gtw_cfg.dma_buffer_size = 2 * mconfig->obs;
+ else
+ cpr_mconfig->gtw_cfg.dma_buffer_size = 2 * mconfig->ibs;
+
+ cpr_mconfig->cpr_feature_mask = 0;
+ cpr_mconfig->gtw_cfg.config_length = 0;
+
+ skl_copy_copier_caps(mconfig, cpr_mconfig);
+}
+
+static void skl_setup_out_format(struct skl_sst *ctx,
+ struct skl_module_cfg *mconfig,
+ struct skl_audio_data_format *out_fmt)
+{
+ struct skl_module_fmt *format = &mconfig->out_fmt;
+
+ out_fmt->number_of_channels = (u8)format->channels;
+ out_fmt->s_freq = format->s_freq;
+ out_fmt->bit_depth = format->bit_depth;
+ out_fmt->valid_bit_depth = format->valid_bit_depth;
+ out_fmt->ch_cfg = format->ch_cfg;
+
+ out_fmt->channel_map = skl_create_channel_map(out_fmt->ch_cfg);
+ out_fmt->interleaving = SKL_INTERLEAVING_PER_CHANNEL;
+
+ dev_dbg(ctx->dev, "copier out format chan=%d fre=%d bitdepth=%d\n",
+ out_fmt->number_of_channels, format->s_freq, format->bit_depth);
+}
+
+/*
+ * DSP needs SRC module for frequency conversion, SRC takes base module
+ * configuration and the target frequency as extra parameter passed as src
+ * config
+ */
+static void skl_set_src_format(struct skl_sst *ctx,
+ struct skl_module_cfg *mconfig,
+ struct skl_src_module_cfg *src_mconfig)
+{
+ struct skl_module_fmt *fmt = &mconfig->out_fmt;
+
+ skl_set_base_module_format(ctx, mconfig,
+ (struct skl_base_cfg *)src_mconfig);
+
+ src_mconfig->src_cfg = fmt->s_freq;
+}
+
+/*
+ * DSP needs updown module to do channel conversion. updown module take base
+ * module configuration and channel configuration
+ * It also take coefficients and now we have defaults applied here
+ */
+static void skl_set_updown_mixer_format(struct skl_sst *ctx,
+ struct skl_module_cfg *mconfig,
+ struct skl_up_down_mixer_cfg *mixer_mconfig)
+{
+ struct skl_module_fmt *fmt = &mconfig->out_fmt;
+ int i = 0;
+
+ skl_set_base_module_format(ctx, mconfig,
+ (struct skl_base_cfg *)mixer_mconfig);
+ mixer_mconfig->out_ch_cfg = fmt->ch_cfg;
+
+ /* Select F/W default coefficient */
+ mixer_mconfig->coeff_sel = 0x0;
+
+ /* User coeff, don't care since we are selecting F/W defaults */
+ for (i = 0; i < UP_DOWN_MIXER_MAX_COEFF; i++)
+ mixer_mconfig->coeff[i] = 0xDEADBEEF;
+}
+
+/*
+ * 'copier' is DSP internal module which copies data from Host DMA (HDA host
+ * dma) or link (hda link, SSP, PDM)
+ * Here we calculate the copier module parameters, like PCM format, output
+ * format, gateway settings
+ * copier_module_config is sent as input buffer with INIT_INSTANCE IPC msg
+ */
+static void skl_set_copier_format(struct skl_sst *ctx,
+ struct skl_module_cfg *mconfig,
+ struct skl_cpr_cfg *cpr_mconfig)
+{
+ struct skl_audio_data_format *out_fmt = &cpr_mconfig->out_fmt;
+ struct skl_base_cfg *base_cfg = (struct skl_base_cfg *)cpr_mconfig;
+
+ skl_set_base_module_format(ctx, mconfig, base_cfg);
+
+ skl_setup_out_format(ctx, mconfig, out_fmt);
+ skl_setup_cpr_gateway_cfg(ctx, mconfig, cpr_mconfig);
+}
+
+static u16 skl_get_module_param_size(struct skl_sst *ctx,
+ struct skl_module_cfg *mconfig)
+{
+ u16 param_size;
+
+ switch (mconfig->m_type) {
+ case SKL_MODULE_TYPE_COPIER:
+ param_size = sizeof(struct skl_cpr_cfg);
+ param_size += mconfig->formats_config.caps_size;
+ return param_size;
+
+ case SKL_MODULE_TYPE_SRCINT:
+ return sizeof(struct skl_src_module_cfg);
+
+ case SKL_MODULE_TYPE_UPDWMIX:
+ return sizeof(struct skl_up_down_mixer_cfg);
+
+ default:
+ /*
+ * return only base cfg when no specific module type is
+ * specified
+ */
+ return sizeof(struct skl_base_cfg);
+ }
+
+ return 0;
+}
+
+/*
+ * DSP firmware supports various modules like copier, SRC, updown etc.
+ * These modules required various parameters to be calculated and sent for
+ * the module initialization to DSP. By default a generic module needs only
+ * base module format configuration
+ */
+
+static int skl_set_module_format(struct skl_sst *ctx,
+ struct skl_module_cfg *module_config,
+ u16 *module_config_size,
+ void **param_data)
+{
+ u16 param_size;
+
+ param_size = skl_get_module_param_size(ctx, module_config);
+
+ *param_data = kzalloc(param_size, GFP_KERNEL);
+ if (NULL == *param_data)
+ return -ENOMEM;
+
+ *module_config_size = param_size;
+
+ switch (module_config->m_type) {
+ case SKL_MODULE_TYPE_COPIER:
+ skl_set_copier_format(ctx, module_config, *param_data);
+ break;
+
+ case SKL_MODULE_TYPE_SRCINT:
+ skl_set_src_format(ctx, module_config, *param_data);
+ break;
+
+ case SKL_MODULE_TYPE_UPDWMIX:
+ skl_set_updown_mixer_format(ctx, module_config, *param_data);
+ break;
+
+ default:
+ skl_set_base_module_format(ctx, module_config, *param_data);
+ break;
+
+ }
+
+ dev_dbg(ctx->dev, "Module type=%d config size: %d bytes\n",
+ module_config->id.module_id, param_size);
+ print_hex_dump(KERN_DEBUG, "Module params:", DUMP_PREFIX_OFFSET, 8, 4,
+ *param_data, param_size, false);
+ return 0;
+}
+
+static int skl_get_queue_index(struct skl_module_pin *mpin,
+ struct skl_module_inst_id id, int max)
+{
+ int i;
+
+ for (i = 0; i < max; i++) {
+ if (mpin[i].id.module_id == id.module_id &&
+ mpin[i].id.instance_id == id.instance_id)
+ return i;
+ }
+
+ return -EINVAL;
+}
+
+/*
+ * Allocates queue for each module.
+ * if dynamic, the pin_index is allocated 0 to max_pin.
+ * In static, the pin_index is fixed based on module_id and instance id
+ */
+static int skl_alloc_queue(struct skl_module_pin *mpin,
+ struct skl_module_inst_id id, int max)
+{
+ int i;
+
+ /*
+ * if pin in dynamic, find first free pin
+ * otherwise find match module and instance id pin as topology will
+ * ensure a unique pin is assigned to this so no need to
+ * allocate/free
+ */
+ for (i = 0; i < max; i++) {
+ if (mpin[i].is_dynamic) {
+ if (!mpin[i].in_use) {
+ mpin[i].in_use = true;
+ mpin[i].id.module_id = id.module_id;
+ mpin[i].id.instance_id = id.instance_id;
+ return i;
+ }
+ } else {
+ if (mpin[i].id.module_id == id.module_id &&
+ mpin[i].id.instance_id == id.instance_id)
+ return i;
+ }
+ }
+
+ return -EINVAL;
+}
+
+static void skl_free_queue(struct skl_module_pin *mpin, int q_index)
+{
+ if (mpin[q_index].is_dynamic) {
+ mpin[q_index].in_use = false;
+ mpin[q_index].id.module_id = 0;
+ mpin[q_index].id.instance_id = 0;
+ }
+}
+
+/*
+ * A module needs to be instanataited in DSP. A mdoule is present in a
+ * collection of module referred as a PIPE.
+ * We first calculate the module format, based on module type and then
+ * invoke the DSP by sending IPC INIT_INSTANCE using ipc helper
+ */
+int skl_init_module(struct skl_sst *ctx,
+ struct skl_module_cfg *mconfig, char *param)
+{
+ u16 module_config_size = 0;
+ void *param_data = NULL;
+ int ret;
+ struct skl_ipc_init_instance_msg msg;
+
+ dev_dbg(ctx->dev, "%s: module_id = %d instance=%d\n", __func__,
+ mconfig->id.module_id, mconfig->id.instance_id);
+
+ if (mconfig->pipe->state != SKL_PIPE_CREATED) {
+ dev_err(ctx->dev, "Pipe not created state= %d pipe_id= %d\n",
+ mconfig->pipe->state, mconfig->pipe->ppl_id);
+ return -EIO;
+ }
+
+ ret = skl_set_module_format(ctx, mconfig,
+ &module_config_size, &param_data);
+ if (ret < 0) {
+ dev_err(ctx->dev, "Failed to set module format ret=%d\n", ret);
+ return ret;
+ }
+
+ msg.module_id = mconfig->id.module_id;
+ msg.instance_id = mconfig->id.instance_id;
+ msg.ppl_instance_id = mconfig->pipe->ppl_id;
+ msg.param_data_size = module_config_size;
+ msg.core_id = mconfig->core_id;
+
+ ret = skl_ipc_init_instance(&ctx->ipc, &msg, param_data);
+ if (ret < 0) {
+ dev_err(ctx->dev, "Failed to init instance ret=%d\n", ret);
+ kfree(param_data);
+ return ret;
+ }
+ mconfig->m_state = SKL_MODULE_INIT_DONE;
+
+ return ret;
+}
+
+static void skl_dump_bind_info(struct skl_sst *ctx, struct skl_module_cfg
+ *src_module, struct skl_module_cfg *dst_module)
+{
+ dev_dbg(ctx->dev, "%s: src module_id = %d src_instance=%d\n",
+ __func__, src_module->id.module_id, src_module->id.instance_id);
+ dev_dbg(ctx->dev, "%s: dst_module=%d dst_instacne=%d\n", __func__,
+ dst_module->id.module_id, dst_module->id.instance_id);
+
+ dev_dbg(ctx->dev, "src_module state = %d dst module state = %d\n",
+ src_module->m_state, dst_module->m_state);
+}
+
+/*
+ * On module freeup, we need to unbind the module with modules
+ * it is already bind.
+ * Find the pin allocated and unbind then using bind_unbind IPC
+ */
+int skl_unbind_modules(struct skl_sst *ctx,
+ struct skl_module_cfg *src_mcfg,
+ struct skl_module_cfg *dst_mcfg)
+{
+ int ret;
+ struct skl_ipc_bind_unbind_msg msg;
+ struct skl_module_inst_id src_id = src_mcfg->id;
+ struct skl_module_inst_id dst_id = dst_mcfg->id;
+ int in_max = dst_mcfg->max_in_queue;
+ int out_max = src_mcfg->max_out_queue;
+ int src_index, dst_index;
+
+ skl_dump_bind_info(ctx, src_mcfg, dst_mcfg);
+
+ if (src_mcfg->m_state != SKL_MODULE_BIND_DONE)
+ return 0;
+
+ /*
+ * if intra module unbind, check if both modules are BIND,
+ * then send unbind
+ */
+ if ((src_mcfg->pipe->ppl_id != dst_mcfg->pipe->ppl_id) &&
+ dst_mcfg->m_state != SKL_MODULE_BIND_DONE)
+ return 0;
+ else if (src_mcfg->m_state < SKL_MODULE_INIT_DONE &&
+ dst_mcfg->m_state < SKL_MODULE_INIT_DONE)
+ return 0;
+
+ /* get src queue index */
+ src_index = skl_get_queue_index(src_mcfg->m_out_pin, dst_id, out_max);
+ if (src_index < 0)
+ return -EINVAL;
+
+ msg.src_queue = src_mcfg->m_out_pin[src_index].pin_index;
+
+ /* get dst queue index */
+ dst_index = skl_get_queue_index(dst_mcfg->m_in_pin, src_id, in_max);
+ if (dst_index < 0)
+ return -EINVAL;
+
+ msg.dst_queue = dst_mcfg->m_in_pin[dst_index].pin_index;
+
+ msg.module_id = src_mcfg->id.module_id;
+ msg.instance_id = src_mcfg->id.instance_id;
+ msg.dst_module_id = dst_mcfg->id.module_id;
+ msg.dst_instance_id = dst_mcfg->id.instance_id;
+ msg.bind = false;
+
+ ret = skl_ipc_bind_unbind(&ctx->ipc, &msg);
+ if (!ret) {
+ src_mcfg->m_state = SKL_MODULE_UNINIT;
+ /* free queue only if unbind is success */
+ skl_free_queue(src_mcfg->m_out_pin, src_index);
+ skl_free_queue(dst_mcfg->m_in_pin, dst_index);
+ }
+
+ return ret;
+}
+
+/*
+ * Once a module is instantiated it need to be 'bind' with other modules in
+ * the pipeline. For binding we need to find the module pins which are bind
+ * together
+ * This function finds the pins and then sends bund_unbind IPC message to
+ * DSP using IPC helper
+ */
+int skl_bind_modules(struct skl_sst *ctx,
+ struct skl_module_cfg *src_mcfg,
+ struct skl_module_cfg *dst_mcfg)
+{
+ int ret;
+ struct skl_ipc_bind_unbind_msg msg;
+ struct skl_module_inst_id src_id = src_mcfg->id;
+ struct skl_module_inst_id dst_id = dst_mcfg->id;
+ int in_max = dst_mcfg->max_in_queue;
+ int out_max = src_mcfg->max_out_queue;
+ int src_index, dst_index;
+
+ skl_dump_bind_info(ctx, src_mcfg, dst_mcfg);
+
+ if (src_mcfg->m_state < SKL_MODULE_INIT_DONE &&
+ dst_mcfg->m_state < SKL_MODULE_INIT_DONE)
+ return 0;
+
+ src_index = skl_alloc_queue(src_mcfg->m_out_pin, dst_id, out_max);
+ if (src_index < 0)
+ return -EINVAL;
+
+ msg.src_queue = src_mcfg->m_out_pin[src_index].pin_index;
+ dst_index = skl_alloc_queue(dst_mcfg->m_in_pin, src_id, in_max);
+ if (dst_index < 0) {
+ skl_free_queue(src_mcfg->m_out_pin, src_index);
+ return -EINVAL;
+ }
+
+ msg.dst_queue = dst_mcfg->m_in_pin[dst_index].pin_index;
+
+ dev_dbg(ctx->dev, "src queue = %d dst queue =%d\n",
+ msg.src_queue, msg.dst_queue);
+
+ msg.module_id = src_mcfg->id.module_id;
+ msg.instance_id = src_mcfg->id.instance_id;
+ msg.dst_module_id = dst_mcfg->id.module_id;
+ msg.dst_instance_id = dst_mcfg->id.instance_id;
+ msg.bind = true;
+
+ ret = skl_ipc_bind_unbind(&ctx->ipc, &msg);
+
+ if (!ret) {
+ src_mcfg->m_state = SKL_MODULE_BIND_DONE;
+ } else {
+ /* error case , if IPC fails, clear the queue index */
+ skl_free_queue(src_mcfg->m_out_pin, src_index);
+ skl_free_queue(dst_mcfg->m_in_pin, dst_index);
+ }
+
+ return ret;
+}
+
+static int skl_set_pipe_state(struct skl_sst *ctx, struct skl_pipe *pipe,
+ enum skl_ipc_pipeline_state state)
+{
+ dev_dbg(ctx->dev, "%s: pipe_satate = %d\n", __func__, state);
+
+ return skl_ipc_set_pipeline_state(&ctx->ipc, pipe->ppl_id, state);
+}
+
+/*
+ * A pipeline is a collection of modules. Before a module in instantiated a
+ * pipeline needs to be created for it.
+ * This function creates pipeline, by sending create pipeline IPC messages
+ * to FW
+ */
+int skl_create_pipeline(struct skl_sst *ctx, struct skl_pipe *pipe)
+{
+ int ret;
+
+ dev_dbg(ctx->dev, "%s: pipe_id = %d\n", __func__, pipe->ppl_id);
+
+ ret = skl_ipc_create_pipeline(&ctx->ipc, pipe->memory_pages,
+ pipe->pipe_priority, pipe->ppl_id);
+ if (ret < 0) {
+ dev_err(ctx->dev, "Failed to create pipeline\n");
+ return ret;
+ }
+
+ pipe->state = SKL_PIPE_CREATED;
+
+ return 0;
+}
+
+/*
+ * A pipeline needs to be deleted on cleanup. If a pipeline is running, then
+ * pause the pipeline first and then delete it
+ * The pipe delete is done by sending delete pipeline IPC. DSP will stop the
+ * DMA engines and releases resources
+ */
+int skl_delete_pipe(struct skl_sst *ctx, struct skl_pipe *pipe)
+{
+ int ret;
+
+ dev_dbg(ctx->dev, "%s: pipe = %d\n", __func__, pipe->ppl_id);
+
+ /* If pipe is not started, do not try to stop the pipe in FW. */
+ if (pipe->state > SKL_PIPE_STARTED) {
+ ret = skl_set_pipe_state(ctx, pipe, PPL_PAUSED);
+ if (ret < 0) {
+ dev_err(ctx->dev, "Failed to stop pipeline\n");
+ return ret;
+ }
+
+ pipe->state = SKL_PIPE_PAUSED;
+ } else {
+ /* If pipe was not created in FW, do not try to delete it */
+ if (pipe->state < SKL_PIPE_CREATED)
+ return 0;
+
+ ret = skl_ipc_delete_pipeline(&ctx->ipc, pipe->ppl_id);
+ if (ret < 0)
+ dev_err(ctx->dev, "Failed to delete pipeline\n");
+ }
+
+ return ret;
+}
+
+/*
+ * A pipeline is also a scheduling entity in DSP which can be run, stopped
+ * For processing data the pipe need to be run by sending IPC set pipe state
+ * to DSP
+ */
+int skl_run_pipe(struct skl_sst *ctx, struct skl_pipe *pipe)
+{
+ int ret;
+
+ dev_dbg(ctx->dev, "%s: pipe = %d\n", __func__, pipe->ppl_id);
+
+ /* If pipe was not created in FW, do not try to pause or delete */
+ if (pipe->state < SKL_PIPE_CREATED)
+ return 0;
+
+ /* Pipe has to be paused before it is started */
+ ret = skl_set_pipe_state(ctx, pipe, PPL_PAUSED);
+ if (ret < 0) {
+ dev_err(ctx->dev, "Failed to pause pipe\n");
+ return ret;
+ }
+
+ pipe->state = SKL_PIPE_PAUSED;
+
+ ret = skl_set_pipe_state(ctx, pipe, PPL_RUNNING);
+ if (ret < 0) {
+ dev_err(ctx->dev, "Failed to start pipe\n");
+ return ret;
+ }
+
+ pipe->state = SKL_PIPE_STARTED;
+
+ return 0;
+}
+
+/*
+ * Stop the pipeline by sending set pipe state IPC
+ * DSP doesnt implement stop so we always send pause message
+ */
+int skl_stop_pipe(struct skl_sst *ctx, struct skl_pipe *pipe)
+{
+ int ret;
+
+ dev_dbg(ctx->dev, "In %s pipe=%d\n", __func__, pipe->ppl_id);
+
+ /* If pipe was not created in FW, do not try to pause or delete */
+ if (pipe->state < SKL_PIPE_PAUSED)
+ return 0;
+
+ ret = skl_set_pipe_state(ctx, pipe, PPL_PAUSED);
+ if (ret < 0) {
+ dev_dbg(ctx->dev, "Failed to stop pipe\n");
+ return ret;
+ }
+
+ pipe->state = SKL_PIPE_CREATED;
+
+ return 0;
+}