Lines Matching +full:disable +full:- +full:wp
1 // SPDX-License-Identifier: GPL-2.0-only
3 * HD-audio controller helpers
20 for (timeout = 1000; timeout > 0; timeout--) { in azx_clear_corbrp()
26 dev_err(bus->dev, "CORB reset timeout#1, CORBRP = %d\n", in azx_clear_corbrp()
30 for (timeout = 1000; timeout > 0; timeout--) { in azx_clear_corbrp()
36 dev_err(bus->dev, "CORB reset timeout#2, CORBRP = %d\n", in azx_clear_corbrp()
41 * snd_hdac_bus_init_cmd_io - set up CORB/RIRB buffers
42 * @bus: HD-audio core bus
48 WARN_ON_ONCE(!bus->rb.area); in snd_hdac_bus_init_cmd_io()
50 spin_lock_irq(&bus->reg_lock); in snd_hdac_bus_init_cmd_io()
52 bus->corb.addr = bus->rb.addr; in snd_hdac_bus_init_cmd_io()
53 bus->corb.buf = (__le32 *)bus->rb.area; in snd_hdac_bus_init_cmd_io()
54 snd_hdac_chip_writel(bus, CORBLBASE, (u32)bus->corb.addr); in snd_hdac_bus_init_cmd_io()
55 snd_hdac_chip_writel(bus, CORBUBASE, upper_32_bits(bus->corb.addr)); in snd_hdac_bus_init_cmd_io()
64 if (chip->driver_caps & AZX_DCAPS_LS2X_WORKAROUND) in snd_hdac_bus_init_cmd_io()
66 else if (!bus->corbrp_self_clear) in snd_hdac_bus_init_cmd_io()
71 if (chip->driver_caps & AZX_DCAPS_LS2X_WORKAROUND) in snd_hdac_bus_init_cmd_io()
75 bus->rirb.addr = bus->rb.addr + 2048; in snd_hdac_bus_init_cmd_io()
76 bus->rirb.buf = (__le32 *)(bus->rb.area + 2048); in snd_hdac_bus_init_cmd_io()
77 bus->rirb.wp = bus->rirb.rp = 0; in snd_hdac_bus_init_cmd_io()
78 memset(bus->rirb.cmds, 0, sizeof(bus->rirb.cmds)); in snd_hdac_bus_init_cmd_io()
79 snd_hdac_chip_writel(bus, RIRBLBASE, (u32)bus->rirb.addr); in snd_hdac_bus_init_cmd_io()
80 snd_hdac_chip_writel(bus, RIRBUBASE, upper_32_bits(bus->rirb.addr)); in snd_hdac_bus_init_cmd_io()
89 if (chip->driver_caps & AZX_DCAPS_LS2X_WORKAROUND) { in snd_hdac_bus_init_cmd_io()
97 spin_unlock_irq(&bus->reg_lock); in snd_hdac_bus_init_cmd_io()
118 * snd_hdac_bus_stop_cmd_io - clean up CORB/RIRB buffers
119 * @bus: HD-audio core bus
123 spin_lock_irq(&bus->reg_lock); in snd_hdac_bus_stop_cmd_io()
124 /* disable ringbuffer DMAs */ in snd_hdac_bus_stop_cmd_io()
127 spin_unlock_irq(&bus->reg_lock); in snd_hdac_bus_stop_cmd_io()
131 spin_lock_irq(&bus->reg_lock); in snd_hdac_bus_stop_cmd_io()
132 /* disable unsolicited responses */ in snd_hdac_bus_stop_cmd_io()
134 spin_unlock_irq(&bus->reg_lock); in snd_hdac_bus_stop_cmd_io()
160 * snd_hdac_bus_send_cmd - send a command verb via CORB
161 * @bus: HD-audio core bus
169 unsigned int wp, rp; in snd_hdac_bus_send_cmd() local
171 spin_lock_irq(&bus->reg_lock); in snd_hdac_bus_send_cmd()
173 bus->last_cmd[azx_command_addr(val)] = val; in snd_hdac_bus_send_cmd()
176 wp = snd_hdac_chip_readw(bus, CORBWP); in snd_hdac_bus_send_cmd()
177 if (wp == 0xffff) { in snd_hdac_bus_send_cmd()
179 spin_unlock_irq(&bus->reg_lock); in snd_hdac_bus_send_cmd()
180 return -EIO; in snd_hdac_bus_send_cmd()
182 wp++; in snd_hdac_bus_send_cmd()
183 wp %= AZX_MAX_CORB_ENTRIES; in snd_hdac_bus_send_cmd()
186 if (wp == rp) { in snd_hdac_bus_send_cmd()
188 spin_unlock_irq(&bus->reg_lock); in snd_hdac_bus_send_cmd()
189 return -EAGAIN; in snd_hdac_bus_send_cmd()
192 bus->rirb.cmds[addr]++; in snd_hdac_bus_send_cmd()
193 bus->corb.buf[wp] = cpu_to_le32(val); in snd_hdac_bus_send_cmd()
194 snd_hdac_chip_writew(bus, CORBWP, wp); in snd_hdac_bus_send_cmd()
196 spin_unlock_irq(&bus->reg_lock); in snd_hdac_bus_send_cmd()
205 * snd_hdac_bus_update_rirb - retrieve RIRB entries
206 * @bus: HD-audio core bus
209 * The caller needs bus->reg_lock spinlock before calling this.
213 unsigned int rp, wp; in snd_hdac_bus_update_rirb() local
217 wp = snd_hdac_chip_readw(bus, RIRBWP); in snd_hdac_bus_update_rirb()
218 if (wp == 0xffff) { in snd_hdac_bus_update_rirb()
223 if (wp == bus->rirb.wp) in snd_hdac_bus_update_rirb()
225 bus->rirb.wp = wp; in snd_hdac_bus_update_rirb()
227 while (bus->rirb.rp != wp) { in snd_hdac_bus_update_rirb()
228 bus->rirb.rp++; in snd_hdac_bus_update_rirb()
229 bus->rirb.rp %= AZX_MAX_RIRB_ENTRIES; in snd_hdac_bus_update_rirb()
231 rp = bus->rirb.rp << 1; /* an RIRB entry is 8-bytes */ in snd_hdac_bus_update_rirb()
232 res_ex = le32_to_cpu(bus->rirb.buf[rp + 1]); in snd_hdac_bus_update_rirb()
233 res = le32_to_cpu(bus->rirb.buf[rp]); in snd_hdac_bus_update_rirb()
237 else if (bus->rirb.cmds[addr]) { in snd_hdac_bus_update_rirb()
238 bus->rirb.res[addr] = res; in snd_hdac_bus_update_rirb()
239 bus->rirb.cmds[addr]--; in snd_hdac_bus_update_rirb()
240 if (!bus->rirb.cmds[addr] && in snd_hdac_bus_update_rirb()
241 waitqueue_active(&bus->rirb_wq)) in snd_hdac_bus_update_rirb()
242 wake_up(&bus->rirb_wq); in snd_hdac_bus_update_rirb()
244 dev_err_ratelimited(bus->dev, in snd_hdac_bus_update_rirb()
246 res, res_ex, bus->last_cmd[addr]); in snd_hdac_bus_update_rirb()
253 * snd_hdac_bus_get_response - receive a response via RIRB
254 * @bus: HD-audio core bus
272 spin_lock_irq(&bus->reg_lock); in snd_hdac_bus_get_response()
273 if (!bus->polling_mode) in snd_hdac_bus_get_response()
274 prepare_to_wait(&bus->rirb_wq, &wait, in snd_hdac_bus_get_response()
276 if (bus->polling_mode) in snd_hdac_bus_get_response()
278 if (!bus->rirb.cmds[addr]) { in snd_hdac_bus_get_response()
280 *res = bus->rirb.res[addr]; /* the last value */ in snd_hdac_bus_get_response()
281 if (!bus->polling_mode) in snd_hdac_bus_get_response()
282 finish_wait(&bus->rirb_wq, &wait); in snd_hdac_bus_get_response()
283 spin_unlock_irq(&bus->reg_lock); in snd_hdac_bus_get_response()
286 spin_unlock_irq(&bus->reg_lock); in snd_hdac_bus_get_response()
290 if (!bus->polling_mode) { in snd_hdac_bus_get_response()
292 } else if (bus->needs_damn_long_delay || in snd_hdac_bus_get_response()
295 dev_dbg_ratelimited(bus->dev, in snd_hdac_bus_get_response()
297 bus->last_cmd[addr]); in snd_hdac_bus_get_response()
307 if (!bus->polling_mode) in snd_hdac_bus_get_response()
308 finish_wait(&bus->rirb_wq, &wait); in snd_hdac_bus_get_response()
310 return -EIO; in snd_hdac_bus_get_response()
316 * snd_hdac_bus_parse_capabilities - parse capability structure
333 dev_dbg(bus->dev, "Capability version: 0x%x\n", in snd_hdac_bus_parse_capabilities()
336 dev_dbg(bus->dev, "HDA capability ID: 0x%x\n", in snd_hdac_bus_parse_capabilities()
339 if (cur_cap == -1) { in snd_hdac_bus_parse_capabilities()
340 dev_dbg(bus->dev, "Invalid capability reg read\n"); in snd_hdac_bus_parse_capabilities()
346 dev_dbg(bus->dev, "Found ML capability\n"); in snd_hdac_bus_parse_capabilities()
347 bus->mlcap = bus->remap_addr + offset; in snd_hdac_bus_parse_capabilities()
351 dev_dbg(bus->dev, "Found GTS capability offset=%x\n", offset); in snd_hdac_bus_parse_capabilities()
352 bus->gtscap = bus->remap_addr + offset; in snd_hdac_bus_parse_capabilities()
357 dev_dbg(bus->dev, "Found PP capability offset=%x\n", offset); in snd_hdac_bus_parse_capabilities()
358 bus->ppcap = bus->remap_addr + offset; in snd_hdac_bus_parse_capabilities()
363 dev_dbg(bus->dev, "Found SPB capability\n"); in snd_hdac_bus_parse_capabilities()
364 bus->spbcap = bus->remap_addr + offset; in snd_hdac_bus_parse_capabilities()
369 dev_dbg(bus->dev, "Found DRSM capability\n"); in snd_hdac_bus_parse_capabilities()
370 bus->drsmcap = bus->remap_addr + offset; in snd_hdac_bus_parse_capabilities()
374 dev_err(bus->dev, "Unknown capability %d\n", cur_cap); in snd_hdac_bus_parse_capabilities()
382 dev_err(bus->dev, "We exceeded HDAC capabilities!!!\n"); in snd_hdac_bus_parse_capabilities()
400 * snd_hdac_bus_enter_link_reset - enter link reset
401 * @bus: HD-audio core bus
420 * snd_hdac_bus_exit_link_reset - exit link reset
421 * @bus: HD-audio core bus
464 dev_dbg(bus->dev, "controller not ready!\n"); in snd_hdac_bus_reset_link()
465 return -EBUSY; in snd_hdac_bus_reset_link()
469 if (!bus->codec_mask) { in snd_hdac_bus_reset_link()
470 bus->codec_mask = snd_hdac_chip_readw(bus, STATESTS); in snd_hdac_bus_reset_link()
471 dev_dbg(bus->dev, "codec_mask = 0x%lx\n", bus->codec_mask); in snd_hdac_bus_reset_link()
487 /* disable interrupts */
492 /* disable interrupts in stream descriptor */ in azx_int_disable()
493 list_for_each_entry(azx_dev, &bus->stream_list, list) in azx_int_disable()
496 /* disable SIE for all streams */ in azx_int_disable()
499 /* disable controller CIE and GIE */ in azx_int_disable()
510 list_for_each_entry(azx_dev, &bus->stream_list, list) { in azx_int_clear()
511 if (chip->driver_caps & AZX_DCAPS_LS2X_WORKAROUND) in azx_int_clear()
521 if (chip->driver_caps & AZX_DCAPS_LS2X_WORKAROUND) in azx_int_clear()
531 * snd_hdac_bus_init_chip - reset and start the controller registers
532 * @bus: HD-audio core bus
537 if (bus->chip_init) in snd_hdac_bus_init_chip()
553 if (bus->use_posbuf && bus->posbuf.addr) { in snd_hdac_bus_init_chip()
554 snd_hdac_chip_writel(bus, DPLBASE, (u32)bus->posbuf.addr); in snd_hdac_bus_init_chip()
555 snd_hdac_chip_writel(bus, DPUBASE, upper_32_bits(bus->posbuf.addr)); in snd_hdac_bus_init_chip()
558 bus->chip_init = true; in snd_hdac_bus_init_chip()
565 * snd_hdac_bus_stop_chip - disable the whole IRQ and I/Os
566 * @bus: HD-audio core bus
570 if (!bus->chip_init) in snd_hdac_bus_stop_chip()
573 /* disable interrupts */ in snd_hdac_bus_stop_chip()
577 /* disable CORB/RIRB */ in snd_hdac_bus_stop_chip()
580 /* disable position buffer */ in snd_hdac_bus_stop_chip()
581 if (bus->posbuf.addr) { in snd_hdac_bus_stop_chip()
586 bus->chip_init = false; in snd_hdac_bus_stop_chip()
591 * snd_hdac_bus_handle_stream_irq - interrupt handler for streams
592 * @bus: HD-audio core bus
607 list_for_each_entry(azx_dev, &bus->stream_list, list) { in snd_hdac_bus_handle_stream_irq()
608 if (status & azx_dev->sd_int_sta_mask) { in snd_hdac_bus_handle_stream_irq()
610 if (chip->driver_caps & AZX_DCAPS_LS2X_WORKAROUND) { in snd_hdac_bus_handle_stream_irq()
616 handled |= 1 << azx_dev->index; in snd_hdac_bus_handle_stream_irq()
617 if (!azx_dev->substream || !azx_dev->running || in snd_hdac_bus_handle_stream_irq()
629 * snd_hdac_bus_alloc_stream_pages - allocate BDL and other buffers
630 * @bus: HD-audio core bus
639 int dma_type = bus->dma_type ? bus->dma_type : SNDRV_DMA_TYPE_DEV; in snd_hdac_bus_alloc_stream_pages()
642 list_for_each_entry(s, &bus->stream_list, list) { in snd_hdac_bus_alloc_stream_pages()
644 err = snd_dma_alloc_pages(dma_type, bus->dev, in snd_hdac_bus_alloc_stream_pages()
645 BDL_SIZE, &s->bdl); in snd_hdac_bus_alloc_stream_pages()
648 return -ENOMEM; in snd_hdac_bus_alloc_stream_pages()
652 return -EINVAL; in snd_hdac_bus_alloc_stream_pages()
654 err = snd_dma_alloc_pages(dma_type, bus->dev, in snd_hdac_bus_alloc_stream_pages()
655 num_streams * 8, &bus->posbuf); in snd_hdac_bus_alloc_stream_pages()
657 return -ENOMEM; in snd_hdac_bus_alloc_stream_pages()
658 list_for_each_entry(s, &bus->stream_list, list) in snd_hdac_bus_alloc_stream_pages()
659 s->posbuf = (__le32 *)(bus->posbuf.area + s->index * 8); in snd_hdac_bus_alloc_stream_pages()
662 return snd_dma_alloc_pages(dma_type, bus->dev, PAGE_SIZE, &bus->rb); in snd_hdac_bus_alloc_stream_pages()
667 * snd_hdac_bus_free_stream_pages - release BDL and other buffers
668 * @bus: HD-audio core bus
674 list_for_each_entry(s, &bus->stream_list, list) { in snd_hdac_bus_free_stream_pages()
675 if (s->bdl.area) in snd_hdac_bus_free_stream_pages()
676 snd_dma_free_pages(&s->bdl); in snd_hdac_bus_free_stream_pages()
679 if (bus->rb.area) in snd_hdac_bus_free_stream_pages()
680 snd_dma_free_pages(&bus->rb); in snd_hdac_bus_free_stream_pages()
681 if (bus->posbuf.area) in snd_hdac_bus_free_stream_pages()
682 snd_dma_free_pages(&bus->posbuf); in snd_hdac_bus_free_stream_pages()