sound/soc/sof/intel/cnl.c

   1 // SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
   2 //
   3 // This file is provided under a dual BSD/GPLv2 license.  When using or
   4 // redistributing this file, you may do so under either license.
   5 //
   6 // Copyright(c) 2018 Intel Corporation. All rights reserved.
   7 //
   8 // Authors: Liam Girdwood <liam.r.girdwood@linux.intel.com>
   9 //          Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
  10 //          Rander Wang <rander.wang@intel.com>
  11 //          Keyon Jie <yang.jie@linux.intel.com>
  12 //
  13
  14 /*
  15  * Hardware interface for audio DSP on Cannonlake.
  16  */
  17
  18 #include "../ops.h"
  19 #include "hda.h"
  20
  21 static const struct snd_sof_debugfs_map cnl_dsp_debugfs[] = {
  22         {"hda", HDA_DSP_HDA_BAR, 0, 0x4000, SOF_DEBUGFS_ACCESS_ALWAYS},
  23         {"pp", HDA_DSP_PP_BAR,  0, 0x1000, SOF_DEBUGFS_ACCESS_ALWAYS},
  24         {"dsp", HDA_DSP_BAR,  0, 0x10000, SOF_DEBUGFS_ACCESS_ALWAYS},
  25 };
  26
  27 static void cnl_ipc_host_done(struct snd_sof_dev *sdev);
  28 static void cnl_ipc_dsp_done(struct snd_sof_dev *sdev);
  29
  30 static irqreturn_t cnl_ipc_irq_thread(int irq, void *context)
  31 {
  32         struct snd_sof_dev *sdev = context;
  33         u32 hipci;
  34         u32 hipcida;
  35         u32 hipctdr;
  36         u32 hipctdd;
  37         u32 msg;
  38         u32 msg_ext;
  39         bool ipc_irq = false;
  40
  41         hipcida = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDA);
  42         hipctdr = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCTDR);
  43         hipctdd = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCTDD);
  44         hipci = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDR);
  45
  46         /* reply message from DSP */
  47         if (hipcida & CNL_DSP_REG_HIPCIDA_DONE) {
  48                 msg_ext = hipci & CNL_DSP_REG_HIPCIDR_MSG_MASK;
  49                 msg = hipcida & CNL_DSP_REG_HIPCIDA_MSG_MASK;
  50
  51                 dev_vdbg(sdev->dev,
  52                          "ipc: firmware response, msg:0x%x, msg_ext:0x%x\n",
  53                          msg, msg_ext);
  54
  55                 /* mask Done interrupt */
  56                 snd_sof_dsp_update_bits(sdev, HDA_DSP_BAR,
  57                                         CNL_DSP_REG_HIPCCTL,
  58                                         CNL_DSP_REG_HIPCCTL_DONE, 0);
  59
  60                 spin_lock_irq(&sdev->ipc_lock);
  61
  62                 /* handle immediate reply from DSP core */
  63                 hda_dsp_ipc_get_reply(sdev);
  64                 snd_sof_ipc_reply(sdev, msg);
  65
  66                 if (sdev->code_loading) {
  67                         sdev->code_loading = 0;
  68                         wake_up(&sdev->waitq);
  69                 }
  70
  71                 cnl_ipc_dsp_done(sdev);
  72
  73                 spin_unlock_irq(&sdev->ipc_lock);
  74
  75                 ipc_irq = true;
  76         }
  77
  78         /* new message from DSP */
  79         if (hipctdr & CNL_DSP_REG_HIPCTDR_BUSY) {
  80                 msg = hipctdr & CNL_DSP_REG_HIPCTDR_MSG_MASK;
  81                 msg_ext = hipctdd & CNL_DSP_REG_HIPCTDD_MSG_MASK;
  82
  83                 dev_vdbg(sdev->dev,
  84                          "ipc: firmware initiated, msg:0x%x, msg_ext:0x%x\n",
  85                          msg, msg_ext);
  86
  87                 /* handle messages from DSP */
  88                 if ((hipctdr & SOF_IPC_PANIC_MAGIC_MASK) ==
  89                    SOF_IPC_PANIC_MAGIC) {
  90                         snd_sof_dsp_panic(sdev, HDA_DSP_PANIC_OFFSET(msg_ext));
  91                 } else {
  92                         snd_sof_ipc_msgs_rx(sdev);
  93                 }
  94
  95                 cnl_ipc_host_done(sdev);
  96
  97                 ipc_irq = true;
  98         }
  99
 100         if (!ipc_irq) {
 101                 /*
 102                  * This interrupt is not shared so no need to return IRQ_NONE.
 103                  */
 104                 dev_dbg_ratelimited(sdev->dev,
 105                                     "nothing to do in IPC IRQ thread\n");
 106         }
 107
 108         /* re-enable IPC interrupt */
 109         snd_sof_dsp_update_bits(sdev, HDA_DSP_BAR, HDA_DSP_REG_ADSPIC,
 110                                 HDA_DSP_ADSPIC_IPC, HDA_DSP_ADSPIC_IPC);
 111
 112         return IRQ_HANDLED;
 113 }
 114
 115 static void cnl_ipc_host_done(struct snd_sof_dev *sdev)
 116 {
 117         /*
 118          * clear busy interrupt to tell dsp controller this
 119          * interrupt has been accepted, not trigger it again
 120          */
 121         snd_sof_dsp_update_bits_forced(sdev, HDA_DSP_BAR,
 122                                        CNL_DSP_REG_HIPCTDR,
 123                                        CNL_DSP_REG_HIPCTDR_BUSY,
 124                                        CNL_DSP_REG_HIPCTDR_BUSY);
 125         /*
 126          * set done bit to ack dsp the msg has been
 127          * processed and send reply msg to dsp
 128          */
 129         snd_sof_dsp_update_bits_forced(sdev, HDA_DSP_BAR,
 130                                        CNL_DSP_REG_HIPCTDA,
 131                                        CNL_DSP_REG_HIPCTDA_DONE,
 132                                        CNL_DSP_REG_HIPCTDA_DONE);
 133 }
 134
 135 static void cnl_ipc_dsp_done(struct snd_sof_dev *sdev)
 136 {
 137         /*
 138          * set DONE bit - tell DSP we have received the reply msg
 139          * from DSP, and processed it, don't send more reply to host
 140          */
 141         snd_sof_dsp_update_bits_forced(sdev, HDA_DSP_BAR,
 142                                        CNL_DSP_REG_HIPCIDA,
 143                                        CNL_DSP_REG_HIPCIDA_DONE,
 144                                        CNL_DSP_REG_HIPCIDA_DONE);
 145
 146         /* unmask Done interrupt */
 147         snd_sof_dsp_update_bits(sdev, HDA_DSP_BAR,
 148                                 CNL_DSP_REG_HIPCCTL,
 149                                 CNL_DSP_REG_HIPCCTL_DONE,
 150                                 CNL_DSP_REG_HIPCCTL_DONE);
 151 }
 152
 153 static int cnl_ipc_send_msg(struct snd_sof_dev *sdev,
 154                             struct snd_sof_ipc_msg *msg)
 155 {
 156         /* send the message */
 157         sof_mailbox_write(sdev, sdev->host_box.offset, msg->msg_data,
 158                           msg->msg_size);
 159         snd_sof_dsp_write(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDR,
 160                           CNL_DSP_REG_HIPCIDR_BUSY);
 161
 162         return 0;
 163 }
 164
 165 static void cnl_ipc_dump(struct snd_sof_dev *sdev)
 166 {
 167         u32 hipcctl;
 168         u32 hipcida;
 169         u32 hipctdr;
 170
 171         hda_ipc_irq_dump(sdev);
 172
 173         /* read IPC status */
 174         hipcida = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDA);
 175         hipcctl = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCCTL);
 176         hipctdr = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCTDR);
 177
 178         /* dump the IPC regs */
 179         /* TODO: parse the raw msg */
 180         dev_err(sdev->dev,
 181                 "error: host status 0x%8.8x dsp status 0x%8.8x mask 0x%8.8x\n",
 182                 hipcida, hipctdr, hipcctl);
 183 }
 184
 185 /* cannonlake ops */
 186 const struct snd_sof_dsp_ops sof_cnl_ops = {
 187         /* probe and remove */
 188         .probe          = hda_dsp_probe,
 189         .remove         = hda_dsp_remove,
 190
 191         /* Register IO */
 192         .write          = sof_io_write,
 193         .read           = sof_io_read,
 194         .write64        = sof_io_write64,
 195         .read64         = sof_io_read64,
 196
 197         /* Block IO */
 198         .block_read     = sof_block_read,
 199         .block_write    = sof_block_write,
 200
 201         /* doorbell */
 202         .irq_handler    = hda_dsp_ipc_irq_handler,
 203         .irq_thread     = cnl_ipc_irq_thread,
 204
 205         /* ipc */
 206         .send_msg       = cnl_ipc_send_msg,
 207         .fw_ready       = hda_dsp_ipc_fw_ready,
 208
 209         .ipc_msg_data   = hda_ipc_msg_data,
 210         .ipc_pcm_params = hda_ipc_pcm_params,
 211
 212         /* debug */
 213         .debug_map      = cnl_dsp_debugfs,
 214         .debug_map_count        = ARRAY_SIZE(cnl_dsp_debugfs),
 215         .dbg_dump       = hda_dsp_dump,
 216         .ipc_dump       = cnl_ipc_dump,
 217
 218         /* stream callbacks */
 219         .pcm_open       = hda_dsp_pcm_open,
 220         .pcm_close      = hda_dsp_pcm_close,
 221         .pcm_hw_params  = hda_dsp_pcm_hw_params,
 222         .pcm_hw_free    = hda_dsp_stream_hw_free,
 223         .pcm_trigger    = hda_dsp_pcm_trigger,
 224         .pcm_pointer    = hda_dsp_pcm_pointer,
 225
 226         /* firmware loading */
 227         .load_firmware = snd_sof_load_firmware_raw,
 228
 229         /* pre/post fw run */
 230         .pre_fw_run = hda_dsp_pre_fw_run,
 231         .post_fw_run = hda_dsp_post_fw_run,
 232
 233         /* dsp core power up/down */
 234         .core_power_up = hda_dsp_enable_core,
 235         .core_power_down = hda_dsp_core_reset_power_down,
 236
 237         /* firmware run */
 238         .run = hda_dsp_cl_boot_firmware,
 239
 240         /* trace callback */
 241         .trace_init = hda_dsp_trace_init,
 242         .trace_release = hda_dsp_trace_release,
 243         .trace_trigger = hda_dsp_trace_trigger,
 244
 245         /* DAI drivers */
 246         .drv            = skl_dai,
 247         .num_drv        = SOF_SKL_NUM_DAIS,
 248
 249         /* PM */
 250         .suspend                = hda_dsp_suspend,
 251         .resume                 = hda_dsp_resume,
 252         .runtime_suspend        = hda_dsp_runtime_suspend,
 253         .runtime_resume         = hda_dsp_runtime_resume,
 254         .runtime_idle           = hda_dsp_runtime_idle,
 255         .set_hw_params_upon_resume = hda_dsp_set_hw_params_upon_resume,
 256 };
 257 EXPORT_SYMBOL(sof_cnl_ops);
 258
 259 const struct sof_intel_dsp_desc cnl_chip_info = {
 260         /* Cannonlake */
 261         .cores_num = 4,
 262         .init_core_mask = 1,
 263         .cores_mask = HDA_DSP_CORE_MASK(0) |
 264                                 HDA_DSP_CORE_MASK(1) |
 265                                 HDA_DSP_CORE_MASK(2) |
 266                                 HDA_DSP_CORE_MASK(3),
 267         .ipc_req = CNL_DSP_REG_HIPCIDR,
 268         .ipc_req_mask = CNL_DSP_REG_HIPCIDR_BUSY,
 269         .ipc_ack = CNL_DSP_REG_HIPCIDA,
 270         .ipc_ack_mask = CNL_DSP_REG_HIPCIDA_DONE,
 271         .ipc_ctl = CNL_DSP_REG_HIPCCTL,
 272         .rom_init_timeout       = 300,
 273         .ssp_count = CNL_SSP_COUNT,
 274         .ssp_base_offset = CNL_SSP_BASE_OFFSET,
 275 };
 276 EXPORT_SYMBOL(cnl_chip_info);
 277
 278 const struct sof_intel_dsp_desc icl_chip_info = {
 279         /* Icelake */
 280         .cores_num = 4,
 281         .init_core_mask = 1,
 282         .cores_mask = HDA_DSP_CORE_MASK(0) |
 283                                 HDA_DSP_CORE_MASK(1) |
 284                                 HDA_DSP_CORE_MASK(2) |
 285                                 HDA_DSP_CORE_MASK(3),
 286         .ipc_req = CNL_DSP_REG_HIPCIDR,
 287         .ipc_req_mask = CNL_DSP_REG_HIPCIDR_BUSY,
 288         .ipc_ack = CNL_DSP_REG_HIPCIDA,
 289         .ipc_ack_mask = CNL_DSP_REG_HIPCIDA_DONE,
 290         .ipc_ctl = CNL_DSP_REG_HIPCCTL,
 291         .rom_init_timeout       = 300,
 292         .ssp_count = ICL_SSP_COUNT,
 293         .ssp_base_offset = CNL_SSP_BASE_OFFSET,
 294 };
 295 EXPORT_SYMBOL(icl_chip_info);