1#ifndef __SOUND_HDAUDIO_EXT_H
  2#define __SOUND_HDAUDIO_EXT_H
  3
  4#include <sound/hdaudio.h>
  5
  6/**
  7 * hdac_ext_bus: HDAC extended bus for extended HDA caps
  8 *
  9 * @bus: hdac bus
 10 * @num_streams: streams supported
 11 * @hlink_list: link list of HDA links
 12 * @lock: lock for link mgmt
 13 * @cmd_dma_state: state of cmd DMAs: CORB and RIRB
 14 */
 15struct hdac_ext_bus {
 16	struct hdac_bus bus;
 17	int num_streams;
 18	int idx;
 19
 20	struct list_head hlink_list;
 21
 22	struct mutex lock;
 23	bool cmd_dma_state;
 24};
 25
 26int snd_hdac_ext_bus_init(struct hdac_ext_bus *sbus, struct device *dev,
 27		      const struct hdac_bus_ops *ops,
 28		      const struct hdac_io_ops *io_ops);
 29
 30void snd_hdac_ext_bus_exit(struct hdac_ext_bus *sbus);
 31int snd_hdac_ext_bus_device_init(struct hdac_ext_bus *sbus, int addr);
 32void snd_hdac_ext_bus_device_exit(struct hdac_device *hdev);
 33void snd_hdac_ext_bus_device_remove(struct hdac_ext_bus *ebus);
 34
 35#define ebus_to_hbus(ebus)	(&(ebus)->bus)
 36#define hbus_to_ebus(_bus) \
 37	container_of(_bus, struct hdac_ext_bus, bus)
 38
 39#define HDA_CODEC_REV_EXT_ENTRY(_vid, _rev, _name, drv_data) \
 40	{ .vendor_id = (_vid), .rev_id = (_rev), .name = (_name), \
 41	  .api_version = HDA_DEV_ASOC, \
 42	  .driver_data = (unsigned long)(drv_data) }
 43#define HDA_CODEC_EXT_ENTRY(_vid, _revid, _name, _drv_data) \
 44	HDA_CODEC_REV_EXT_ENTRY(_vid, _revid, _name, _drv_data)
 45
 46void snd_hdac_ext_bus_ppcap_enable(struct hdac_ext_bus *chip, bool enable);
 47void snd_hdac_ext_bus_ppcap_int_enable(struct hdac_ext_bus *chip, bool enable);
 48
 49void snd_hdac_ext_stream_spbcap_enable(struct hdac_ext_bus *chip,
 50				 bool enable, int index);
 51
 52int snd_hdac_ext_bus_get_ml_capabilities(struct hdac_ext_bus *bus);
 53struct hdac_ext_link *snd_hdac_ext_bus_get_link(struct hdac_ext_bus *bus,
 54						const char *codec_name);
 55
 56enum hdac_ext_stream_type {
 57	HDAC_EXT_STREAM_TYPE_COUPLED = 0,
 58	HDAC_EXT_STREAM_TYPE_HOST,
 59	HDAC_EXT_STREAM_TYPE_LINK
 60};
 61
 62/**
 63 * hdac_ext_stream: HDAC extended stream for extended HDA caps
 64 *
 65 * @hstream: hdac_stream
 66 * @pphc_addr: processing pipe host stream pointer
 67 * @pplc_addr: processing pipe link stream pointer
 68 * @spib_addr: software position in buffers stream pointer
 69 * @fifo_addr: software position Max fifos stream pointer
 70 * @dpibr_addr: DMA position in buffer resume pointer
 71 * @dpib: DMA position in buffer
 72 * @lpib: Linear position in buffer
 73 * @decoupled: stream host and link is decoupled
 74 * @link_locked: link is locked
 75 * @link_prepared: link is prepared
 76 * link_substream: link substream
 77 */
 78struct hdac_ext_stream {
 79	struct hdac_stream hstream;
 80
 81	void __iomem *pphc_addr;
 82	void __iomem *pplc_addr;
 83
 84	void __iomem *spib_addr;
 85	void __iomem *fifo_addr;
 86
 87	void __iomem *dpibr_addr;
 88
 89	u32 dpib;
 90	u32 lpib;
 91	bool decoupled:1;
 92	bool link_locked:1;
 93	bool link_prepared;
 94
 95	struct snd_pcm_substream *link_substream;
 96};
 97
 98#define hdac_stream(s)		(&(s)->hstream)
 99#define stream_to_hdac_ext_stream(s) \
100	container_of(s, struct hdac_ext_stream, hstream)
101
102void snd_hdac_ext_stream_init(struct hdac_ext_bus *bus,
103				struct hdac_ext_stream *stream, int idx,
104				int direction, int tag);
105int snd_hdac_ext_stream_init_all(struct hdac_ext_bus *ebus, int start_idx,
106		int num_stream, int dir);
107void snd_hdac_stream_free_all(struct hdac_ext_bus *ebus);
108void snd_hdac_link_free_all(struct hdac_ext_bus *ebus);
109struct hdac_ext_stream *snd_hdac_ext_stream_assign(struct hdac_ext_bus *bus,
110					   struct snd_pcm_substream *substream,
111					   int type);
112void snd_hdac_ext_stream_release(struct hdac_ext_stream *azx_dev, int type);
113void snd_hdac_ext_stream_decouple(struct hdac_ext_bus *bus,
114				struct hdac_ext_stream *azx_dev, bool decouple);
115void snd_hdac_ext_stop_streams(struct hdac_ext_bus *sbus);
116
117int snd_hdac_ext_stream_set_spib(struct hdac_ext_bus *ebus,
118				 struct hdac_ext_stream *stream, u32 value);
119int snd_hdac_ext_stream_get_spbmaxfifo(struct hdac_ext_bus *ebus,
120				 struct hdac_ext_stream *stream);
121void snd_hdac_ext_stream_drsm_enable(struct hdac_ext_bus *ebus,
122				bool enable, int index);
123int snd_hdac_ext_stream_set_dpibr(struct hdac_ext_bus *ebus,
124				struct hdac_ext_stream *stream, u32 value);
125int snd_hdac_ext_stream_set_lpib(struct hdac_ext_stream *stream, u32 value);
126
127void snd_hdac_ext_link_stream_start(struct hdac_ext_stream *hstream);
128void snd_hdac_ext_link_stream_clear(struct hdac_ext_stream *hstream);
129void snd_hdac_ext_link_stream_reset(struct hdac_ext_stream *hstream);
130int snd_hdac_ext_link_stream_setup(struct hdac_ext_stream *stream, int fmt);
131
132struct hdac_ext_link {
133	struct hdac_bus *bus;
134	int index;
135	void __iomem *ml_addr; /* link output stream reg pointer */
136	u32 lcaps;   /* link capablities */
137	u16 lsdiid;  /* link sdi identifier */
138
139	int ref_count;
140
141	struct list_head list;
142};
143
144int snd_hdac_ext_bus_link_power_up(struct hdac_ext_link *link);
145int snd_hdac_ext_bus_link_power_down(struct hdac_ext_link *link);
146int snd_hdac_ext_bus_link_power_up_all(struct hdac_ext_bus *ebus);
147int snd_hdac_ext_bus_link_power_down_all(struct hdac_ext_bus *ebus);
148void snd_hdac_ext_link_set_stream_id(struct hdac_ext_link *link,
149				 int stream);
150void snd_hdac_ext_link_clear_stream_id(struct hdac_ext_link *link,
151				 int stream);
152
153int snd_hdac_ext_bus_link_get(struct hdac_ext_bus *ebus,
154				struct hdac_ext_link *link);
155int snd_hdac_ext_bus_link_put(struct hdac_ext_bus *ebus,
156				struct hdac_ext_link *link);
157
158/* update register macro */
159#define snd_hdac_updatel(addr, reg, mask, val)		\
160	writel(((readl(addr + reg) & ~(mask)) | (val)), \
161		addr + reg)
162
163#define snd_hdac_updatew(addr, reg, mask, val)		\
164	writew(((readw(addr + reg) & ~(mask)) | (val)), \
165		addr + reg)
166
167
168struct hdac_ext_device;
169
170/* ops common to all codec drivers */
171struct hdac_ext_codec_ops {
172	int (*build_controls)(struct hdac_ext_device *dev);
173	int (*init)(struct hdac_ext_device *dev);
174	void (*free)(struct hdac_ext_device *dev);
175};
176
177struct hda_dai_map {
178	char *dai_name;
179	hda_nid_t nid;
180	u32	maxbps;
181};
182
183#define HDA_MAX_NIDS 16
184
185/**
186 * struct hdac_ext_device - HDAC Ext device
187 *
188 * @hdac: hdac core device
189 * @nid_list - the dai map which matches the dai-name with the nid
190 * @map_cur_idx - the idx in use in dai_map
191 * @ops - the hda codec ops common to all codec drivers
192 * @pvt_data - private data, for asoc contains asoc codec object
193 */
194struct hdac_ext_device {
195	struct hdac_device hdac;
196	struct hdac_ext_bus *ebus;
197
198	/* soc-dai to nid map */
199	struct hda_dai_map nid_list[HDA_MAX_NIDS];
200	unsigned int map_cur_idx;
201
202	/* codec ops */
203	struct hdac_ext_codec_ops ops;
204
205	struct snd_card *card;
206	void *scodec;
207	void *private_data;
208};
209
210struct hdac_ext_dma_params {
211	u32 format;
212	u8 stream_tag;
213};
214#define to_ehdac_device(dev) (container_of((dev), \
215				 struct hdac_ext_device, hdac))
216/*
217 * HD-audio codec base driver
218 */
219struct hdac_ext_driver {
220	struct hdac_driver hdac;
221
222	int	(*probe)(struct hdac_ext_device *dev);
223	int	(*remove)(struct hdac_ext_device *dev);
224	void	(*shutdown)(struct hdac_ext_device *dev);
225};
226
227int snd_hda_ext_driver_register(struct hdac_ext_driver *drv);
228void snd_hda_ext_driver_unregister(struct hdac_ext_driver *drv);
229
230#define to_ehdac_driver(_drv) container_of(_drv, struct hdac_ext_driver, hdac)
231
232#endif /* __SOUND_HDAUDIO_EXT_H */