1 /* SPDX-License-Identifier: GPL-2.0 */
3  * HD-audio core stuff
31  * exported bus type
47  * HD-audio codec base device
52 	struct hdac_bus *bus;  member
53 	unsigned int addr;		/* codec address */  member
54 	struct list_head list;		/* list point for bus codec_list */
117 int snd_hdac_device_init(struct hdac_device *dev, struct hdac_bus *bus,
118 			 const char *name, unsigned int addr);
158  * snd_hdac_read_parm - read a codec parameter
163  * Returns -1 for error.  If you need to distinguish the error more
171 	return _snd_hdac_read_parm(codec, nid, parm, &val) < 0 ? -1 : val;  in snd_hdac_read_parm()
184 	atomic_inc(&codec->in_pm);  in snd_hdac_enter_pm()
190 	atomic_dec(&codec->in_pm);  in snd_hdac_leave_pm()
195 	return atomic_read(&codec->in_pm);  in snd_hdac_is_in_pm()
200 	return !pm_runtime_suspended(&codec->dev);  in snd_hdac_is_power_on()
215  * HD-audio codec base driver
224 	/* fields used by ext bus APIs */
236  * Bus verb operators
240 	int (*command)(struct hdac_bus *bus, unsigned int cmd);
242 	int (*get_response)(struct hdac_bus *bus, unsigned int addr,
264 	dma_addr_t addr;	/* physical address of CORB/RIRB buffer */  member
271  * HD-audio bus base driver
290 	unsigned long addr;  member
304 	/* link caddr -> codec */
375 int snd_hdac_bus_init(struct hdac_bus *bus, struct device *dev,
377 void snd_hdac_bus_exit(struct hdac_bus *bus);
378 int snd_hdac_bus_exec_verb_unlocked(struct hdac_bus *bus, unsigned int addr,
383 	set_bit(codec->addr, &codec->bus->codec_powered);  in snd_hdac_codec_link_up()
388 	clear_bit(codec->addr, &codec->bus->codec_powered);  in snd_hdac_codec_link_down()
391 int snd_hdac_bus_send_cmd(struct hdac_bus *bus, unsigned int val);
392 int snd_hdac_bus_get_response(struct hdac_bus *bus, unsigned int addr,
394 int snd_hdac_bus_parse_capabilities(struct hdac_bus *bus);
396 bool snd_hdac_bus_init_chip(struct hdac_bus *bus, bool full_reset);
397 void snd_hdac_bus_stop_chip(struct hdac_bus *bus);
398 void snd_hdac_bus_init_cmd_io(struct hdac_bus *bus);
399 void snd_hdac_bus_stop_cmd_io(struct hdac_bus *bus);
400 void snd_hdac_bus_enter_link_reset(struct hdac_bus *bus);
401 void snd_hdac_bus_exit_link_reset(struct hdac_bus *bus);
402 int snd_hdac_bus_reset_link(struct hdac_bus *bus, bool full_reset);
404 void snd_hdac_bus_update_rirb(struct hdac_bus *bus);
405 int snd_hdac_bus_handle_stream_irq(struct hdac_bus *bus, unsigned int status,
409 int snd_hdac_bus_alloc_stream_pages(struct hdac_bus *bus);
410 void snd_hdac_bus_free_stream_pages(struct hdac_bus *bus);
413 unsigned int snd_hdac_aligned_read(void __iomem *addr, unsigned int mask);
414 void snd_hdac_aligned_write(unsigned int val, void __iomem *addr,
416 #define snd_hdac_aligned_mmio(bus)	(bus)->aligned_mmio  argument
418 #define snd_hdac_aligned_mmio(bus)	false  argument
419 #define snd_hdac_aligned_read(addr, mask)	0  argument
420 #define snd_hdac_aligned_write(val, addr, mask) do {} while (0)  argument
423 static inline void snd_hdac_reg_writeb(struct hdac_bus *bus, void __iomem *addr,  in snd_hdac_reg_writeb()  argument
426 	if (snd_hdac_aligned_mmio(bus))  in snd_hdac_reg_writeb()
427 		snd_hdac_aligned_write(val, addr, 0xff);  in snd_hdac_reg_writeb()
429 		writeb(val, addr);  in snd_hdac_reg_writeb()
432 static inline void snd_hdac_reg_writew(struct hdac_bus *bus, void __iomem *addr,  in snd_hdac_reg_writew()  argument
435 	if (snd_hdac_aligned_mmio(bus))  in snd_hdac_reg_writew()
436 		snd_hdac_aligned_write(val, addr, 0xffff);  in snd_hdac_reg_writew()
438 		writew(val, addr);  in snd_hdac_reg_writew()
441 static inline u8 snd_hdac_reg_readb(struct hdac_bus *bus, void __iomem *addr)  in snd_hdac_reg_readb()  argument
443 	return snd_hdac_aligned_mmio(bus) ?  in snd_hdac_reg_readb()
444 		snd_hdac_aligned_read(addr, 0xff) : readb(addr);  in snd_hdac_reg_readb()
447 static inline u16 snd_hdac_reg_readw(struct hdac_bus *bus, void __iomem *addr)  in snd_hdac_reg_readw()  argument
449 	return snd_hdac_aligned_mmio(bus) ?  in snd_hdac_reg_readw()
450 		snd_hdac_aligned_read(addr, 0xffff) : readw(addr);  in snd_hdac_reg_readw()
453 #define snd_hdac_reg_writel(bus, addr, val)	writel(val, addr)  argument
454 #define snd_hdac_reg_readl(bus, addr)	readl(addr)  argument
460 	snd_hdac_reg_writeb(chip, (chip)->remap_addr + (reg), value)
462 	snd_hdac_reg_readb(chip, (chip)->remap_addr + (reg))
464 	snd_hdac_reg_writew(chip, (chip)->remap_addr + (reg), value)
466 	snd_hdac_reg_readw(chip, (chip)->remap_addr + (reg))
468 	snd_hdac_reg_writel(chip, (chip)->remap_addr + (reg), value)
470 	snd_hdac_reg_readl(chip, (chip)->remap_addr + (reg))
498  * HD-audio stream
501 	struct hdac_bus *bus;  member
549 void snd_hdac_stream_init(struct hdac_bus *bus, struct hdac_stream *azx_dev,
551 struct hdac_stream *snd_hdac_stream_assign(struct hdac_bus *bus,
554 struct hdac_stream *snd_hdac_get_stream(struct hdac_bus *bus,
572 int snd_hdac_get_stream_stripe_ctl(struct hdac_bus *bus,
580 	snd_hdac_reg_writel((dev)->bus, (dev)->sd_addr + AZX_REG_ ## reg, value)
582 	snd_hdac_reg_writew((dev)->bus, (dev)->sd_addr + AZX_REG_ ## reg, value)
584 	snd_hdac_reg_writeb((dev)->bus, (dev)->sd_addr + AZX_REG_ ## reg, value)
586 	snd_hdac_reg_readl((dev)->bus, (dev)->sd_addr + AZX_REG_ ## reg)
588 	snd_hdac_reg_readw((dev)->bus, (dev)->sd_addr + AZX_REG_ ## reg)
590 	snd_hdac_reg_readb((dev)->bus, (dev)->sd_addr + AZX_REG_ ## reg)
608 #define snd_hdac_dsp_lock_init(dev)	mutex_init(&(dev)->dsp_mutex)
609 #define snd_hdac_dsp_lock(dev)		mutex_lock(&(dev)->dsp_mutex)
610 #define snd_hdac_dsp_unlock(dev)	mutex_unlock(&(dev)->dsp_mutex)
611 #define snd_hdac_stream_is_locked(dev)	((dev)->locked)
650 	array->elem_size = size;  in snd_array_init()
651 	array->alloc_align = align;  in snd_array_init()
656 	return array->list + idx * array->elem_size;  in snd_array_elem()
661 	return (unsigned long)(ptr - array->list) / array->elem_size;  in snd_array_index()
666 	for ((idx) = 0, (ptr) = (array)->list; (idx) < (array)->used; \