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_err_ratelimited(sdev->dev, 105 "error: nothing to do in 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); 296