13 static void azx_clear_corbrp(struct hdac_bus *bus)  in azx_clear_corbrp()  argument
18 		if (snd_hdac_chip_readw(bus, CORBRP) & AZX_CORBRP_RST)  in azx_clear_corbrp()
23 		dev_err(bus->dev, "CORB reset timeout#1, CORBRP = %d\n",  in azx_clear_corbrp()
24 			snd_hdac_chip_readw(bus, CORBRP));  in azx_clear_corbrp()
26 	snd_hdac_chip_writew(bus, CORBRP, 0);  in azx_clear_corbrp()
28 		if (snd_hdac_chip_readw(bus, CORBRP) == 0)  in azx_clear_corbrp()
33 		dev_err(bus->dev, "CORB reset timeout#2, CORBRP = %d\n",  in azx_clear_corbrp()
34 			snd_hdac_chip_readw(bus, CORBRP));  in azx_clear_corbrp()
41 void snd_hdac_bus_init_cmd_io(struct hdac_bus *bus)  in snd_hdac_bus_init_cmd_io()  argument
43 	spin_lock_irq(&bus->reg_lock);  in snd_hdac_bus_init_cmd_io()
45 	bus->corb.addr = bus->rb.addr;  in snd_hdac_bus_init_cmd_io()
46 	bus->corb.buf = (__le32 *)bus->rb.area;  in snd_hdac_bus_init_cmd_io()
47 	snd_hdac_chip_writel(bus, CORBLBASE, (u32)bus->corb.addr);  in snd_hdac_bus_init_cmd_io()
48 	snd_hdac_chip_writel(bus, CORBUBASE, upper_32_bits(bus->corb.addr));  in snd_hdac_bus_init_cmd_io()
51 	snd_hdac_chip_writeb(bus, CORBSIZE, 0x02);  in snd_hdac_bus_init_cmd_io()
53 	snd_hdac_chip_writew(bus, CORBWP, 0);  in snd_hdac_bus_init_cmd_io()
56 	snd_hdac_chip_writew(bus, CORBRP, AZX_CORBRP_RST);  in snd_hdac_bus_init_cmd_io()
57 	if (!bus->corbrp_self_clear)  in snd_hdac_bus_init_cmd_io()
58 		azx_clear_corbrp(bus);  in snd_hdac_bus_init_cmd_io()
61 	snd_hdac_chip_writeb(bus, CORBCTL, AZX_CORBCTL_RUN);  in snd_hdac_bus_init_cmd_io()
64 	bus->rirb.addr = bus->rb.addr + 2048;  in snd_hdac_bus_init_cmd_io()
65 	bus->rirb.buf = (__le32 *)(bus->rb.area + 2048);  in snd_hdac_bus_init_cmd_io()
66 	bus->rirb.wp = bus->rirb.rp = 0;  in snd_hdac_bus_init_cmd_io()
67 	memset(bus->rirb.cmds, 0, sizeof(bus->rirb.cmds));  in snd_hdac_bus_init_cmd_io()
68 	snd_hdac_chip_writel(bus, RIRBLBASE, (u32)bus->rirb.addr);  in snd_hdac_bus_init_cmd_io()
69 	snd_hdac_chip_writel(bus, RIRBUBASE, upper_32_bits(bus->rirb.addr));  in snd_hdac_bus_init_cmd_io()
72 	snd_hdac_chip_writeb(bus, RIRBSIZE, 0x02);  in snd_hdac_bus_init_cmd_io()
74 	snd_hdac_chip_writew(bus, RIRBWP, AZX_RIRBWP_RST);  in snd_hdac_bus_init_cmd_io()
76 	snd_hdac_chip_writew(bus, RINTCNT, 1);  in snd_hdac_bus_init_cmd_io()
78 	snd_hdac_chip_writeb(bus, RIRBCTL, AZX_RBCTL_DMA_EN | AZX_RBCTL_IRQ_EN);  in snd_hdac_bus_init_cmd_io()
79 	spin_unlock_irq(&bus->reg_lock);  in snd_hdac_bus_init_cmd_io()
87 void snd_hdac_bus_stop_cmd_io(struct hdac_bus *bus)  in snd_hdac_bus_stop_cmd_io()  argument
89 	spin_lock_irq(&bus->reg_lock);  in snd_hdac_bus_stop_cmd_io()
91 	snd_hdac_chip_writeb(bus, RIRBCTL, 0);  in snd_hdac_bus_stop_cmd_io()
92 	snd_hdac_chip_writeb(bus, CORBCTL, 0);  in snd_hdac_bus_stop_cmd_io()
94 	snd_hdac_chip_updatel(bus, GCTL, AZX_GCTL_UNSOL, 0);  in snd_hdac_bus_stop_cmd_io()
95 	spin_unlock_irq(&bus->reg_lock);  in snd_hdac_bus_stop_cmd_io()
115 int snd_hdac_bus_send_cmd(struct hdac_bus *bus, unsigned int val)  in snd_hdac_bus_send_cmd()  argument
120 	spin_lock_irq(&bus->reg_lock);  in snd_hdac_bus_send_cmd()
122 	bus->last_cmd[azx_command_addr(val)] = val;  in snd_hdac_bus_send_cmd()
125 	wp = snd_hdac_chip_readw(bus, CORBWP);  in snd_hdac_bus_send_cmd()
128 		spin_unlock_irq(&bus->reg_lock);  in snd_hdac_bus_send_cmd()
134 	rp = snd_hdac_chip_readw(bus, CORBRP);  in snd_hdac_bus_send_cmd()
137 		spin_unlock_irq(&bus->reg_lock);  in snd_hdac_bus_send_cmd()
141 	bus->rirb.cmds[addr]++;  in snd_hdac_bus_send_cmd()
142 	bus->corb.buf[wp] = cpu_to_le32(val);  in snd_hdac_bus_send_cmd()
143 	snd_hdac_chip_writew(bus, CORBWP, wp);  in snd_hdac_bus_send_cmd()
145 	spin_unlock_irq(&bus->reg_lock);  in snd_hdac_bus_send_cmd()
159 void snd_hdac_bus_update_rirb(struct hdac_bus *bus)  in snd_hdac_bus_update_rirb()  argument
165 	wp = snd_hdac_chip_readw(bus, RIRBWP);  in snd_hdac_bus_update_rirb()
171 	if (wp == bus->rirb.wp)  in snd_hdac_bus_update_rirb()
173 	bus->rirb.wp = wp;  in snd_hdac_bus_update_rirb()
175 	while (bus->rirb.rp != wp) {  in snd_hdac_bus_update_rirb()
176 		bus->rirb.rp++;  in snd_hdac_bus_update_rirb()
177 		bus->rirb.rp %= AZX_MAX_RIRB_ENTRIES;  in snd_hdac_bus_update_rirb()
179 		rp = bus->rirb.rp << 1; /* an RIRB entry is 8-bytes */  in snd_hdac_bus_update_rirb()
180 		res_ex = le32_to_cpu(bus->rirb.buf[rp + 1]);  in snd_hdac_bus_update_rirb()
181 		res = le32_to_cpu(bus->rirb.buf[rp]);  in snd_hdac_bus_update_rirb()
184 			dev_err(bus->dev,  in snd_hdac_bus_update_rirb()
186 				res, res_ex, bus->rirb.rp, wp);  in snd_hdac_bus_update_rirb()
189 			snd_hdac_bus_queue_event(bus, res, res_ex);  in snd_hdac_bus_update_rirb()
190 		else if (bus->rirb.cmds[addr]) {  in snd_hdac_bus_update_rirb()
191 			bus->rirb.res[addr] = res;  in snd_hdac_bus_update_rirb()
192 			bus->rirb.cmds[addr]--;  in snd_hdac_bus_update_rirb()
194 			dev_err_ratelimited(bus->dev,  in snd_hdac_bus_update_rirb()
196 				res, res_ex, bus->last_cmd[addr]);  in snd_hdac_bus_update_rirb()
210 int snd_hdac_bus_get_response(struct hdac_bus *bus, unsigned int addr,  in snd_hdac_bus_get_response()  argument
219 		spin_lock_irq(&bus->reg_lock);  in snd_hdac_bus_get_response()
220 		if (!bus->rirb.cmds[addr]) {  in snd_hdac_bus_get_response()
222 				*res = bus->rirb.res[addr]; /* the last value */  in snd_hdac_bus_get_response()
223 			spin_unlock_irq(&bus->reg_lock);  in snd_hdac_bus_get_response()
226 		spin_unlock_irq(&bus->reg_lock);  in snd_hdac_bus_get_response()
251 void snd_hdac_bus_enter_link_reset(struct hdac_bus *bus)  in snd_hdac_bus_enter_link_reset()  argument
256 	snd_hdac_chip_updatel(bus, GCTL, AZX_GCTL_RESET, 0);  in snd_hdac_bus_enter_link_reset()
259 	while ((snd_hdac_chip_readb(bus, GCTL) & AZX_GCTL_RESET) &&  in snd_hdac_bus_enter_link_reset()
271 void snd_hdac_bus_exit_link_reset(struct hdac_bus *bus)  in snd_hdac_bus_exit_link_reset()  argument
275 	snd_hdac_chip_updateb(bus, GCTL, 0, AZX_GCTL_RESET);  in snd_hdac_bus_exit_link_reset()
278 	while (!snd_hdac_chip_readb(bus, GCTL) && time_before(jiffies, timeout))  in snd_hdac_bus_exit_link_reset()
284 static int azx_reset(struct hdac_bus *bus, bool full_reset)  in azx_reset()  argument
290 	snd_hdac_chip_writew(bus, STATESTS, STATESTS_INT_MASK);  in azx_reset()
293 	snd_hdac_bus_enter_link_reset(bus);  in azx_reset()
301 	snd_hdac_bus_exit_link_reset(bus);  in azx_reset()
308 	if (!snd_hdac_chip_readb(bus, GCTL)) {  in azx_reset()
309 		dev_dbg(bus->dev, "azx_reset: controller not ready!\n");  in azx_reset()
314 	snd_hdac_chip_updatel(bus, GCTL, 0, AZX_GCTL_UNSOL);  in azx_reset()
317 	if (!bus->codec_mask) {  in azx_reset()
318 		bus->codec_mask = snd_hdac_chip_readw(bus, STATESTS);  in azx_reset()
319 		dev_dbg(bus->dev, "codec_mask = 0x%lx\n", bus->codec_mask);  in azx_reset()
326 static void azx_int_enable(struct hdac_bus *bus)  in azx_int_enable()  argument
329 	snd_hdac_chip_updatel(bus, INTCTL, 0, AZX_INT_CTRL_EN | AZX_INT_GLOBAL_EN);  in azx_int_enable()
333 static void azx_int_disable(struct hdac_bus *bus)  in azx_int_disable()  argument
338 	list_for_each_entry(azx_dev, &bus->stream_list, list)  in azx_int_disable()
342 	snd_hdac_chip_writeb(bus, INTCTL, 0);  in azx_int_disable()
345 	snd_hdac_chip_updatel(bus, INTCTL, AZX_INT_CTRL_EN | AZX_INT_GLOBAL_EN, 0);  in azx_int_disable()
349 static void azx_int_clear(struct hdac_bus *bus)  in azx_int_clear()  argument
354 	list_for_each_entry(azx_dev, &bus->stream_list, list)  in azx_int_clear()
358 	snd_hdac_chip_writew(bus, STATESTS, STATESTS_INT_MASK);  in azx_int_clear()
361 	snd_hdac_chip_writeb(bus, RIRBSTS, RIRB_INT_MASK);  in azx_int_clear()
364 	snd_hdac_chip_writel(bus, INTSTS, AZX_INT_CTRL_EN | AZX_INT_ALL_STREAM);  in azx_int_clear()
372 bool snd_hdac_bus_init_chip(struct hdac_bus *bus, bool full_reset)  in snd_hdac_bus_init_chip()  argument
374 	if (bus->chip_init)  in snd_hdac_bus_init_chip()
378 	azx_reset(bus, full_reset);  in snd_hdac_bus_init_chip()
381 	azx_int_clear(bus);  in snd_hdac_bus_init_chip()
382 	azx_int_enable(bus);  in snd_hdac_bus_init_chip()
385 	snd_hdac_bus_init_cmd_io(bus);  in snd_hdac_bus_init_chip()
388 	if (bus->use_posbuf && bus->posbuf.addr) {  in snd_hdac_bus_init_chip()
389 		snd_hdac_chip_writel(bus, DPLBASE, (u32)bus->posbuf.addr);  in snd_hdac_bus_init_chip()
390 		snd_hdac_chip_writel(bus, DPUBASE, upper_32_bits(bus->posbuf.addr));  in snd_hdac_bus_init_chip()
393 	bus->chip_init = true;  in snd_hdac_bus_init_chip()
402 void snd_hdac_bus_stop_chip(struct hdac_bus *bus)  in snd_hdac_bus_stop_chip()  argument
404 	if (!bus->chip_init)  in snd_hdac_bus_stop_chip()
408 	azx_int_disable(bus);  in snd_hdac_bus_stop_chip()
409 	azx_int_clear(bus);  in snd_hdac_bus_stop_chip()
412 	snd_hdac_bus_stop_cmd_io(bus);  in snd_hdac_bus_stop_chip()
415 	if (bus->posbuf.addr) {  in snd_hdac_bus_stop_chip()
416 		snd_hdac_chip_writel(bus, DPLBASE, 0);  in snd_hdac_bus_stop_chip()
417 		snd_hdac_chip_writel(bus, DPUBASE, 0);  in snd_hdac_bus_stop_chip()
420 	bus->chip_init = false;  in snd_hdac_bus_stop_chip()
430 void snd_hdac_bus_handle_stream_irq(struct hdac_bus *bus, unsigned int status,  in snd_hdac_bus_handle_stream_irq()  argument
437 	list_for_each_entry(azx_dev, &bus->stream_list, list) {  in snd_hdac_bus_handle_stream_irq()
445 				ack(bus, azx_dev);  in snd_hdac_bus_handle_stream_irq()
458 int snd_hdac_bus_alloc_stream_pages(struct hdac_bus *bus)  in snd_hdac_bus_alloc_stream_pages()  argument
464 	list_for_each_entry(s, &bus->stream_list, list) {  in snd_hdac_bus_alloc_stream_pages()
466 		err = bus->io_ops->dma_alloc_pages(bus, SNDRV_DMA_TYPE_DEV,  in snd_hdac_bus_alloc_stream_pages()
476 	err = bus->io_ops->dma_alloc_pages(bus, SNDRV_DMA_TYPE_DEV,  in snd_hdac_bus_alloc_stream_pages()
477 					   num_streams * 8, &bus->posbuf);  in snd_hdac_bus_alloc_stream_pages()
480 	list_for_each_entry(s, &bus->stream_list, list)  in snd_hdac_bus_alloc_stream_pages()
481 		s->posbuf = (__le32 *)(bus->posbuf.area + s->index * 8);  in snd_hdac_bus_alloc_stream_pages()
484 	return bus->io_ops->dma_alloc_pages(bus, SNDRV_DMA_TYPE_DEV,  in snd_hdac_bus_alloc_stream_pages()
485 					    PAGE_SIZE, &bus->rb);  in snd_hdac_bus_alloc_stream_pages()
493 void snd_hdac_bus_free_stream_pages(struct hdac_bus *bus)  in snd_hdac_bus_free_stream_pages()  argument
497 	list_for_each_entry(s, &bus->stream_list, list) {  in snd_hdac_bus_free_stream_pages()
499 			bus->io_ops->dma_free_pages(bus, &s->bdl);  in snd_hdac_bus_free_stream_pages()
502 	if (bus->rb.area)  in snd_hdac_bus_free_stream_pages()
503 		bus->io_ops->dma_free_pages(bus, &bus->rb);  in snd_hdac_bus_free_stream_pages()
504 	if (bus->posbuf.area)  in snd_hdac_bus_free_stream_pages()
505 		bus->io_ops->dma_free_pages(bus, &bus->posbuf);  in snd_hdac_bus_free_stream_pages()