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// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
//
// This file is provided under a dual BSD/GPLv2 license. When using or
// redistributing this file, you may do so under either license.
//
// Copyright(c) 2018 Intel Corporation. All rights reserved.
//
// Authors: Liam Girdwood <liam.r.girdwood@linux.intel.com>
// Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
// Rander Wang <rander.wang@intel.com>
// Keyon Jie <yang.jie@linux.intel.com>
//
/*
* Hardware interface for audio DSP on Cannonlake.
*/
#include "../ops.h"
#include "hda.h"
static const struct snd_sof_debugfs_map cnl_dsp_debugfs[] = {
{"hda", HDA_DSP_HDA_BAR, 0, 0x4000, SOF_DEBUGFS_ACCESS_ALWAYS},
{"pp", HDA_DSP_PP_BAR, 0, 0x1000, SOF_DEBUGFS_ACCESS_ALWAYS},
{"dsp", HDA_DSP_BAR, 0, 0x10000, SOF_DEBUGFS_ACCESS_ALWAYS},
};
static void cnl_ipc_host_done(struct snd_sof_dev *sdev);
static void cnl_ipc_dsp_done(struct snd_sof_dev *sdev);
static irqreturn_t cnl_ipc_irq_thread(int irq, void *context)
{
struct snd_sof_dev *sdev = context;
u32 hipci;
u32 hipcctl;
u32 hipcida;
u32 hipctdr;
u32 hipctdd;
u32 msg;
u32 msg_ext;
irqreturn_t ret = IRQ_NONE;
hipcida = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDA);
hipcctl = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCCTL);
hipctdr = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCTDR);
/* reenable IPC interrupt */
snd_sof_dsp_update_bits(sdev, HDA_DSP_BAR, HDA_DSP_REG_ADSPIC,
HDA_DSP_ADSPIC_IPC, HDA_DSP_ADSPIC_IPC);
/* reply message from DSP */
if (hipcida & CNL_DSP_REG_HIPCIDA_DONE &&
hipcctl & CNL_DSP_REG_HIPCCTL_DONE) {
hipci = snd_sof_dsp_read(sdev, HDA_DSP_BAR,
CNL_DSP_REG_HIPCIDR);
msg_ext = hipci & CNL_DSP_REG_HIPCIDR_MSG_MASK;
msg = hipcida & CNL_DSP_REG_HIPCIDA_MSG_MASK;
dev_vdbg(sdev->dev,
"ipc: firmware response, msg:0x%x, msg_ext:0x%x\n",
msg, msg_ext);
/* mask Done interrupt */
snd_sof_dsp_update_bits(sdev, HDA_DSP_BAR,
CNL_DSP_REG_HIPCCTL,
CNL_DSP_REG_HIPCCTL_DONE, 0);
spin_lock_irq(&sdev->ipc_lock);
/* handle immediate reply from DSP core */
hda_dsp_ipc_get_reply(sdev);
snd_sof_ipc_reply(sdev, msg);
if (sdev->code_loading) {
sdev->code_loading = 0;
wake_up(&sdev->waitq);
}
cnl_ipc_dsp_done(sdev);
spin_unlock_irq(&sdev->ipc_lock);
ret = IRQ_HANDLED;
}
/* new message from DSP */
if (hipctdr & CNL_DSP_REG_HIPCTDR_BUSY) {
hipctdd = snd_sof_dsp_read(sdev, HDA_DSP_BAR,
CNL_DSP_REG_HIPCTDD);
msg = hipctdr & CNL_DSP_REG_HIPCTDR_MSG_MASK;
msg_ext = hipctdd & CNL_DSP_REG_HIPCTDD_MSG_MASK;
dev_vdbg(sdev->dev,
"ipc: firmware initiated, msg:0x%x, msg_ext:0x%x\n",
msg, msg_ext);
/* handle messages from DSP */
if ((hipctdr & SOF_IPC_PANIC_MAGIC_MASK) ==
SOF_IPC_PANIC_MAGIC) {
snd_sof_dsp_panic(sdev, HDA_DSP_PANIC_OFFSET(msg_ext));
} else {
snd_sof_ipc_msgs_rx(sdev);
}
/*
* clear busy interrupt to tell dsp controller this
* interrupt has been accepted, not trigger it again
*/
snd_sof_dsp_update_bits_forced(sdev, HDA_DSP_BAR,
CNL_DSP_REG_HIPCTDR,
CNL_DSP_REG_HIPCTDR_BUSY,
CNL_DSP_REG_HIPCTDR_BUSY);
cnl_ipc_host_done(sdev);
ret = IRQ_HANDLED;
}
return ret;
}
static void cnl_ipc_host_done(struct snd_sof_dev *sdev)
{
/*
* set done bit to ack dsp the msg has been
* processed and send reply msg to dsp
*/
snd_sof_dsp_update_bits_forced(sdev, HDA_DSP_BAR,
CNL_DSP_REG_HIPCTDA,
CNL_DSP_REG_HIPCTDA_DONE,
CNL_DSP_REG_HIPCTDA_DONE);
}
static void cnl_ipc_dsp_done(struct snd_sof_dev *sdev)
{
/*
* set DONE bit - tell DSP we have received the reply msg
* from DSP, and processed it, don't send more reply to host
*/
snd_sof_dsp_update_bits_forced(sdev, HDA_DSP_BAR,
CNL_DSP_REG_HIPCIDA,
CNL_DSP_REG_HIPCIDA_DONE,
CNL_DSP_REG_HIPCIDA_DONE);
/* unmask Done interrupt */
snd_sof_dsp_update_bits(sdev, HDA_DSP_BAR,
CNL_DSP_REG_HIPCCTL,
CNL_DSP_REG_HIPCCTL_DONE,
CNL_DSP_REG_HIPCCTL_DONE);
}
static int cnl_ipc_send_msg(struct snd_sof_dev *sdev,
struct snd_sof_ipc_msg *msg)
{
u32 cmd = msg->header;
/* send the message */
sof_mailbox_write(sdev, sdev->host_box.offset, msg->msg_data,
msg->msg_size);
snd_sof_dsp_write(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDR,
cmd | CNL_DSP_REG_HIPCIDR_BUSY);
return 0;
}
static void cnl_ipc_dump(struct snd_sof_dev *sdev)
{
u32 hipcctl;
u32 hipcida;
u32 hipctdr;
/* read IPC status */
hipcida = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDA);
hipcctl = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCCTL);
hipctdr = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCTDR);
/* dump the IPC regs */
/* TODO: parse the raw msg */
dev_err(sdev->dev,
"error: host status 0x%8.8x dsp status 0x%8.8x mask 0x%8.8x\n",
hipcida, hipctdr, hipcctl);
}
/* cannonlake ops */
const struct snd_sof_dsp_ops sof_cnl_ops = {
/* probe and remove */
.probe = hda_dsp_probe,
.remove = hda_dsp_remove,
/* Register IO */
.write = sof_io_write,
.read = sof_io_read,
.write64 = sof_io_write64,
.read64 = sof_io_read64,
/* Block IO */
.block_read = sof_block_read,
.block_write = sof_block_write,
/* doorbell */
.irq_handler = hda_dsp_ipc_irq_handler,
.irq_thread = cnl_ipc_irq_thread,
/* ipc */
.send_msg = cnl_ipc_send_msg,
.fw_ready = hda_dsp_ipc_fw_ready,
.ipc_msg_data = hda_ipc_msg_data,
.ipc_pcm_params = hda_ipc_pcm_params,
/* debug */
.debug_map = cnl_dsp_debugfs,
.debug_map_count = ARRAY_SIZE(cnl_dsp_debugfs),
.dbg_dump = hda_dsp_dump,
.ipc_dump = cnl_ipc_dump,
/* stream callbacks */
.pcm_open = hda_dsp_pcm_open,
.pcm_close = hda_dsp_pcm_close,
.pcm_hw_params = hda_dsp_pcm_hw_params,
.pcm_trigger = hda_dsp_pcm_trigger,
.pcm_pointer = hda_dsp_pcm_pointer,
/* firmware loading */
.load_firmware = snd_sof_load_firmware_raw,
/* pre/post fw run */
.pre_fw_run = hda_dsp_pre_fw_run,
.post_fw_run = hda_dsp_post_fw_run,
/* dsp core power up/down */
.core_power_up = hda_dsp_enable_core,
.core_power_down = hda_dsp_core_reset_power_down,
/* firmware run */
.run = hda_dsp_cl_boot_firmware,
/* trace callback */
.trace_init = hda_dsp_trace_init,
.trace_release = hda_dsp_trace_release,
.trace_trigger = hda_dsp_trace_trigger,
/* DAI drivers */
.drv = skl_dai,
.num_drv = SOF_SKL_NUM_DAIS,
/* PM */
.suspend = hda_dsp_suspend,
.resume = hda_dsp_resume,
.runtime_suspend = hda_dsp_runtime_suspend,
.runtime_resume = hda_dsp_runtime_resume,
.set_hw_params_upon_resume = hda_dsp_set_hw_params_upon_resume,
};
EXPORT_SYMBOL(sof_cnl_ops);
const struct sof_intel_dsp_desc cnl_chip_info = {
/* Cannonlake */
.cores_num = 4,
.init_core_mask = 1,
.cores_mask = HDA_DSP_CORE_MASK(0) |
HDA_DSP_CORE_MASK(1) |
HDA_DSP_CORE_MASK(2) |
HDA_DSP_CORE_MASK(3),
.ipc_req = CNL_DSP_REG_HIPCIDR,
.ipc_req_mask = CNL_DSP_REG_HIPCIDR_BUSY,
.ipc_ack = CNL_DSP_REG_HIPCIDA,
.ipc_ack_mask = CNL_DSP_REG_HIPCIDA_DONE,
.ipc_ctl = CNL_DSP_REG_HIPCCTL,
.rom_init_timeout = 300,
.ssp_count = CNL_SSP_COUNT,
.ssp_base_offset = CNL_SSP_BASE_OFFSET,
};
EXPORT_SYMBOL(cnl_chip_info);
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