// SPDX-License-Identifier: (GPL-2.0-only 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) 2022 MediaTek Inc. All rights reserved. // // Author: YC Hung <yc.hung@mediatek.com>
/* * Common helpers for the audio DSP on MediaTek platforms
*/
/** * mtk_adsp_get_registers() - This function is called in case of DSP oops * in order to gather information about the registers, filename and * linenumber and stack. * @sdev: SOF device * @xoops: Stores information about registers. * @panic_info: Stores information about filename and line number. * @stack: Stores the stack dump. * @stack_words: Size of the stack dump.
*/ staticvoid mtk_adsp_get_registers(struct snd_sof_dev *sdev, struct sof_ipc_dsp_oops_xtensa *xoops, struct sof_ipc_panic_info *panic_info,
u32 *stack, size_t stack_words)
{
u32 offset = sdev->dsp_oops_offset;
/* first read registers */
sof_mailbox_read(sdev, offset, xoops, sizeof(*xoops));
/* then get panic info */ if (xoops->arch_hdr.totalsize > EXCEPT_MAX_HDR_SIZE) {
dev_err(sdev->dev, "invalid header size 0x%x\n",
xoops->arch_hdr.totalsize); return;
}
offset += xoops->arch_hdr.totalsize;
sof_mailbox_read(sdev, offset, panic_info, sizeof(*panic_info));
/* then get the stack */
offset += sizeof(*panic_info);
sof_mailbox_read(sdev, offset, stack, stack_words * sizeof(u32));
}
/** * mtk_adsp_dump() - This function is called when a panic message is * received from the firmware. * @sdev: SOF device * @flags: parameter not used but required by ops prototype
*/ void mtk_adsp_dump(struct snd_sof_dev *sdev, u32 flags)
{ char *level = (flags & SOF_DBG_DUMP_OPTIONAL) ? KERN_DEBUG : KERN_ERR; struct sof_ipc_dsp_oops_xtensa xoops; struct sof_ipc_panic_info panic_info = {};
u32 stack[MTK_ADSP_STACK_DUMP_SIZE];
u32 status;
/* Get information about the panic status from the debug box area. * Compute the trace point based on the status.
*/
sof_mailbox_read(sdev, sdev->debug_box.offset + 0x4, &status, 4);
/* Get information about the registers, the filename and line * number and the stack.
*/
mtk_adsp_get_registers(sdev, &xoops, &panic_info, stack,
MTK_ADSP_STACK_DUMP_SIZE);
/* Print the information to the console */
sof_print_oops_and_stack(sdev, level, status, status, &xoops, &panic_info,
stack, MTK_ADSP_STACK_DUMP_SIZE);
}
EXPORT_SYMBOL(mtk_adsp_dump);
/** * mtk_adsp_send_msg - Send message to Audio DSP * @sdev: SOF device * @msg: SOF IPC Message to send
*/ int mtk_adsp_send_msg(struct snd_sof_dev *sdev, struct snd_sof_ipc_msg *msg)
{ struct adsp_priv *priv = sdev->pdata->hw_pdata;
/** * mtk_adsp_handle_request - Handle request from the Audio DSP through Mailbox * @ipc: ADSP IPC handle
*/ void mtk_adsp_handle_request(struct mtk_adsp_ipc *ipc)
{ struct adsp_priv *priv = mtk_adsp_ipc_get_data(ipc);
u32 panic_code; int ret;
/* Read the message from the debug box. */
sof_mailbox_read(priv->sdev, priv->sdev->debug_box.offset + 4,
&panic_code, sizeof(panic_code));
/* Check to see if the message is a panic code 0x0dead*** */ if ((panic_code & SOF_IPC_PANIC_MAGIC_MASK) == SOF_IPC_PANIC_MAGIC) {
snd_sof_dsp_panic(priv->sdev, panic_code, true);
} else {
snd_sof_ipc_msgs_rx(priv->sdev);
/* Tell DSP cmd is done */
ret = mtk_adsp_ipc_send(priv->dsp_ipc, MTK_ADSP_IPC_RSP, MTK_ADSP_IPC_OP_RSP); if (ret)
dev_err(priv->dev, "request send ipc failed");
}
}
EXPORT_SYMBOL(mtk_adsp_handle_request);
/** * mtk_adsp_get_bar_index - Map section type with BAR idx * @sdev: SOF device * @type: Section type as described by snd_sof_fw_blk_type * * MediaTek Audio DSPs have a 1:1 match between type and BAR idx
*/ int mtk_adsp_get_bar_index(struct snd_sof_dev *sdev, u32 type)
{ return type;
}
EXPORT_SYMBOL(mtk_adsp_get_bar_index);
spcm = snd_sof_find_spcm_dai(scomp, rtd); if (!spcm) {
dev_warn_ratelimited(sdev->dev, "warn: can't find PCM with DAI ID %d\n",
rtd->dai_link->id); return 0;
}
stream = &spcm->stream[substream->stream];
ret = snd_sof_ipc_msg_data(sdev, stream, &posn, sizeof(posn)); if (ret < 0) {
dev_warn(sdev->dev, "failed to read stream position: %d\n", ret); return 0;
}
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.