diff options
Diffstat (limited to 'sound/soc/sof/intel/hda-ipc.c')
| -rw-r--r-- | sound/soc/sof/intel/hda-ipc.c | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/sound/soc/sof/intel/hda-ipc.c b/sound/soc/sof/intel/hda-ipc.c index 0395638c43ae..f08011249955 100644 --- a/sound/soc/sof/intel/hda-ipc.c +++ b/sound/soc/sof/intel/hda-ipc.c @@ -15,6 +15,7 @@ * Hardware interface for generic Intel audio DSP HDA IP */ +#include <sound/sof/ipc4/header.h> #include "../ops.h" #include "hda.h" @@ -65,6 +66,22 @@ int hda_dsp_ipc_send_msg(struct snd_sof_dev *sdev, struct snd_sof_ipc_msg *msg) return 0; } +int hda_dsp_ipc4_send_msg(struct snd_sof_dev *sdev, struct snd_sof_ipc_msg *msg) +{ + struct sof_ipc4_msg *msg_data = msg->msg_data; + + /* send the message via mailbox */ + if (msg_data->data_size) + sof_mailbox_write(sdev, sdev->host_box.offset, msg_data->data_ptr, + msg_data->data_size); + + snd_sof_dsp_write(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCIE, msg_data->extension); + snd_sof_dsp_write(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCI, + msg_data->primary | HDA_DSP_REG_HIPCI_BUSY); + + return 0; +} + void hda_dsp_ipc_get_reply(struct snd_sof_dev *sdev) { struct snd_sof_ipc_msg *msg = sdev->msg; @@ -100,6 +117,71 @@ void hda_dsp_ipc_get_reply(struct snd_sof_dev *sdev) } } +irqreturn_t hda_dsp_ipc4_irq_thread(int irq, void *context) +{ + struct sof_ipc4_msg notification_data = {{ 0 }}; + struct snd_sof_dev *sdev = context; + bool ipc_irq = false; + u32 hipcie, hipct; + + hipcie = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCIE); + if (hipcie & HDA_DSP_REG_HIPCIE_DONE) { + /* DSP received the message */ + snd_sof_dsp_update_bits(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCCTL, + HDA_DSP_REG_HIPCCTL_DONE, 0); + hda_dsp_ipc_dsp_done(sdev); + + ipc_irq = true; + } + + hipct = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCT); + if (hipct & HDA_DSP_REG_HIPCT_BUSY) { + /* Message from DSP (reply or notification) */ + u32 hipcte = snd_sof_dsp_read(sdev, HDA_DSP_BAR, + HDA_DSP_REG_HIPCTE); + u32 primary = hipct & HDA_DSP_REG_HIPCT_MSG_MASK; + u32 extension = hipcte & HDA_DSP_REG_HIPCTE_MSG_MASK; + + /* mask BUSY interrupt */ + snd_sof_dsp_update_bits(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCCTL, + HDA_DSP_REG_HIPCCTL_BUSY, 0); + + if (primary & SOF_IPC4_MSG_DIR_MASK) { + /* Reply received */ + struct sof_ipc4_msg *data = sdev->ipc->msg.reply_data; + + data->primary = primary; + data->extension = extension; + + spin_lock_irq(&sdev->ipc_lock); + + snd_sof_ipc_get_reply(sdev); + snd_sof_ipc_reply(sdev, data->primary); + + spin_unlock_irq(&sdev->ipc_lock); + } else { + /* Notification received */ + + notification_data.primary = primary; + notification_data.extension = extension; + sdev->ipc->msg.rx_data = ¬ification_data; + snd_sof_ipc_msgs_rx(sdev); + sdev->ipc->msg.rx_data = NULL; + } + + /* Let DSP know that we have finished processing the message */ + hda_dsp_ipc_host_done(sdev); + + ipc_irq = true; + } + + if (!ipc_irq) + /* This interrupt is not shared so no need to return IRQ_NONE. */ + dev_dbg_ratelimited(sdev->dev, "nothing to do in IPC IRQ thread\n"); + + return IRQ_HANDLED; +} + /* IPC handler thread */ irqreturn_t hda_dsp_ipc_irq_thread(int irq, void *context) { |