Lines Matching full:bus
16 static void azx_clear_corbrp(struct hdac_bus *bus) in azx_clear_corbrp() argument
21 if (snd_hdac_chip_readw(bus, CORBRP) & AZX_CORBRP_RST) in azx_clear_corbrp()
26 dev_err(bus->dev, "CORB reset timeout#1, CORBRP = %d\n", in azx_clear_corbrp()
27 snd_hdac_chip_readw(bus, CORBRP)); in azx_clear_corbrp()
29 snd_hdac_chip_writew(bus, CORBRP, 0); in azx_clear_corbrp()
31 if (snd_hdac_chip_readw(bus, CORBRP) == 0) in azx_clear_corbrp()
36 dev_err(bus->dev, "CORB reset timeout#2, CORBRP = %d\n", in azx_clear_corbrp()
37 snd_hdac_chip_readw(bus, CORBRP)); in azx_clear_corbrp()
42 * @bus: HD-audio core bus
44 void snd_hdac_bus_init_cmd_io(struct hdac_bus *bus) in snd_hdac_bus_init_cmd_io() argument
46 struct azx *chip = bus_to_azx(bus); in snd_hdac_bus_init_cmd_io()
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()
58 snd_hdac_chip_writeb(bus, CORBSIZE, 0x02); in snd_hdac_bus_init_cmd_io()
60 snd_hdac_chip_writew(bus, CORBWP, 0); in snd_hdac_bus_init_cmd_io()
63 snd_hdac_chip_writew(bus, CORBRP, AZX_CORBRP_RST); in snd_hdac_bus_init_cmd_io()
65 snd_hdac_chip_writew(bus, CORBRP, 0); in snd_hdac_bus_init_cmd_io()
66 else if (!bus->corbrp_self_clear) in snd_hdac_bus_init_cmd_io()
67 azx_clear_corbrp(bus); in snd_hdac_bus_init_cmd_io()
70 snd_hdac_chip_writeb(bus, CORBCTL, AZX_CORBCTL_RUN); in snd_hdac_bus_init_cmd_io()
72 snd_hdac_chip_readb(bus, CORBCTL); 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()
83 snd_hdac_chip_writeb(bus, RIRBSIZE, 0x02); in snd_hdac_bus_init_cmd_io()
85 snd_hdac_chip_writew(bus, RIRBWP, AZX_RIRBWP_RST); in snd_hdac_bus_init_cmd_io()
87 snd_hdac_chip_writew(bus, RINTCNT, 1); in snd_hdac_bus_init_cmd_io()
90 snd_hdac_chip_writeb(bus, RIRBCTL, AZX_RBCTL_DMA_EN); in snd_hdac_bus_init_cmd_io()
91 snd_hdac_chip_readb(bus, RIRBCTL); in snd_hdac_bus_init_cmd_io()
94 snd_hdac_chip_writeb(bus, RIRBCTL, AZX_RBCTL_DMA_EN | AZX_RBCTL_IRQ_EN); in snd_hdac_bus_init_cmd_io()
96 snd_hdac_chip_updatel(bus, GCTL, AZX_GCTL_UNSOL, AZX_GCTL_UNSOL); in snd_hdac_bus_init_cmd_io()
97 spin_unlock_irq(&bus->reg_lock); in snd_hdac_bus_init_cmd_io()
102 static void hdac_wait_for_cmd_dmas(struct hdac_bus *bus) in hdac_wait_for_cmd_dmas() argument
107 while ((snd_hdac_chip_readb(bus, RIRBCTL) & AZX_RBCTL_DMA_EN) in hdac_wait_for_cmd_dmas()
112 while ((snd_hdac_chip_readb(bus, CORBCTL) & AZX_CORBCTL_RUN) in hdac_wait_for_cmd_dmas()
119 * @bus: HD-audio core bus
121 void snd_hdac_bus_stop_cmd_io(struct hdac_bus *bus) in snd_hdac_bus_stop_cmd_io() argument
123 spin_lock_irq(&bus->reg_lock); in snd_hdac_bus_stop_cmd_io()
125 snd_hdac_chip_writeb(bus, RIRBCTL, 0); in snd_hdac_bus_stop_cmd_io()
126 snd_hdac_chip_writeb(bus, CORBCTL, 0); in snd_hdac_bus_stop_cmd_io()
127 spin_unlock_irq(&bus->reg_lock); in snd_hdac_bus_stop_cmd_io()
129 hdac_wait_for_cmd_dmas(bus); in snd_hdac_bus_stop_cmd_io()
131 spin_lock_irq(&bus->reg_lock); in snd_hdac_bus_stop_cmd_io()
133 snd_hdac_chip_updatel(bus, GCTL, AZX_GCTL_UNSOL, 0); in snd_hdac_bus_stop_cmd_io()
134 spin_unlock_irq(&bus->reg_lock); in snd_hdac_bus_stop_cmd_io()
161 * @bus: HD-audio core bus
166 int snd_hdac_bus_send_cmd(struct hdac_bus *bus, unsigned int val) in snd_hdac_bus_send_cmd() argument
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()
179 spin_unlock_irq(&bus->reg_lock); in snd_hdac_bus_send_cmd()
185 rp = snd_hdac_chip_readw(bus, CORBRP); in snd_hdac_bus_send_cmd()
188 spin_unlock_irq(&bus->reg_lock); 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()
206 * @bus: HD-audio core bus
209 * The caller needs bus->reg_lock spinlock before calling this.
211 void snd_hdac_bus_update_rirb(struct hdac_bus *bus) in snd_hdac_bus_update_rirb() argument
217 wp = snd_hdac_chip_readw(bus, RIRBWP); 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()
236 snd_hdac_bus_queue_event(bus, res, res_ex); 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()
254 * @bus: HD-audio core bus
260 int snd_hdac_bus_get_response(struct hdac_bus *bus, unsigned int addr, in snd_hdac_bus_get_response() argument
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()
277 snd_hdac_bus_update_rirb(bus); 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()
317 * @bus: the pointer to bus object
321 int snd_hdac_bus_parse_capabilities(struct hdac_bus *bus) in snd_hdac_bus_parse_capabilities() argument
327 offset = snd_hdac_chip_readw(bus, LLCH); in snd_hdac_bus_parse_capabilities()
331 cur_cap = _snd_hdac_chip_readl(bus, offset); in snd_hdac_bus_parse_capabilities()
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()
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()
401 * @bus: HD-audio core bus
405 void snd_hdac_bus_enter_link_reset(struct hdac_bus *bus) in snd_hdac_bus_enter_link_reset() argument
410 snd_hdac_chip_updatel(bus, GCTL, AZX_GCTL_RESET, 0); in snd_hdac_bus_enter_link_reset()
413 while ((snd_hdac_chip_readb(bus, GCTL) & AZX_GCTL_RESET) && in snd_hdac_bus_enter_link_reset()
421 * @bus: HD-audio core bus
425 void snd_hdac_bus_exit_link_reset(struct hdac_bus *bus) in snd_hdac_bus_exit_link_reset() argument
429 snd_hdac_chip_updateb(bus, GCTL, AZX_GCTL_RESET, AZX_GCTL_RESET); in snd_hdac_bus_exit_link_reset()
432 while (!snd_hdac_chip_readb(bus, GCTL) && time_before(jiffies, timeout)) in snd_hdac_bus_exit_link_reset()
438 int snd_hdac_bus_reset_link(struct hdac_bus *bus, bool full_reset) in snd_hdac_bus_reset_link() argument
444 if (snd_hdac_chip_readb(bus, GCTL) & AZX_GCTL_RESET) in snd_hdac_bus_reset_link()
445 snd_hdac_chip_writew(bus, STATESTS, STATESTS_INT_MASK); in snd_hdac_bus_reset_link()
448 snd_hdac_bus_enter_link_reset(bus); in snd_hdac_bus_reset_link()
456 snd_hdac_bus_exit_link_reset(bus); in snd_hdac_bus_reset_link()
463 if (!snd_hdac_chip_readb(bus, GCTL)) { in snd_hdac_bus_reset_link()
464 dev_dbg(bus->dev, "controller not ready!\n"); 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()
479 static void azx_int_enable(struct hdac_bus *bus) in azx_int_enable() argument
482 snd_hdac_chip_updatel(bus, INTCTL, in azx_int_enable()
488 static void azx_int_disable(struct hdac_bus *bus) in azx_int_disable() argument
493 list_for_each_entry(azx_dev, &bus->stream_list, list) in azx_int_disable()
497 snd_hdac_chip_writeb(bus, INTCTL, 0); in azx_int_disable()
500 snd_hdac_chip_updatel(bus, INTCTL, AZX_INT_CTRL_EN | AZX_INT_GLOBAL_EN, 0); in azx_int_disable()
504 static void azx_int_clear(struct hdac_bus *bus) in azx_int_clear() argument
507 struct azx *chip = bus_to_azx(bus); in azx_int_clear()
510 list_for_each_entry(azx_dev, &bus->stream_list, list) { in azx_int_clear()
518 snd_hdac_chip_writew(bus, STATESTS, STATESTS_INT_MASK); in azx_int_clear()
522 snd_hdac_chip_updateb(bus, RIRBSTS, ~RIRB_INT_MASK, 0); in azx_int_clear()
524 snd_hdac_chip_writeb(bus, RIRBSTS, RIRB_INT_MASK); in azx_int_clear()
527 snd_hdac_chip_writel(bus, INTSTS, AZX_INT_CTRL_EN | AZX_INT_ALL_STREAM); in azx_int_clear()
532 * @bus: HD-audio core bus
535 bool snd_hdac_bus_init_chip(struct hdac_bus *bus, bool full_reset) in snd_hdac_bus_init_chip() argument
537 if (bus->chip_init) in snd_hdac_bus_init_chip()
541 snd_hdac_bus_reset_link(bus, full_reset); in snd_hdac_bus_init_chip()
544 azx_int_clear(bus); in snd_hdac_bus_init_chip()
547 snd_hdac_bus_init_cmd_io(bus); in snd_hdac_bus_init_chip()
550 azx_int_enable(bus); 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()
566 * @bus: HD-audio core bus
568 void snd_hdac_bus_stop_chip(struct hdac_bus *bus) in snd_hdac_bus_stop_chip() argument
570 if (!bus->chip_init) in snd_hdac_bus_stop_chip()
574 azx_int_disable(bus); in snd_hdac_bus_stop_chip()
575 azx_int_clear(bus); in snd_hdac_bus_stop_chip()
578 snd_hdac_bus_stop_cmd_io(bus); in snd_hdac_bus_stop_chip()
581 if (bus->posbuf.addr) { in snd_hdac_bus_stop_chip()
582 snd_hdac_chip_writel(bus, DPLBASE, 0); in snd_hdac_bus_stop_chip()
583 snd_hdac_chip_writel(bus, DPUBASE, 0); in snd_hdac_bus_stop_chip()
586 bus->chip_init = false; in snd_hdac_bus_stop_chip()
592 * @bus: HD-audio core bus
598 int snd_hdac_bus_handle_stream_irq(struct hdac_bus *bus, unsigned int status, in snd_hdac_bus_handle_stream_irq() argument
605 struct azx *chip = bus_to_azx(bus); in snd_hdac_bus_handle_stream_irq()
607 list_for_each_entry(azx_dev, &bus->stream_list, list) { in snd_hdac_bus_handle_stream_irq()
621 ack(bus, azx_dev); in snd_hdac_bus_handle_stream_irq()
630 * @bus: HD-audio core bus
635 int snd_hdac_bus_alloc_stream_pages(struct hdac_bus *bus) in snd_hdac_bus_alloc_stream_pages() argument
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()
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()
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()
668 * @bus: HD-audio core bus
670 void snd_hdac_bus_free_stream_pages(struct hdac_bus *bus) in snd_hdac_bus_free_stream_pages() argument
674 list_for_each_entry(s, &bus->stream_list, list) { 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()