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review.shift-gmbh.com / SHIFTPHONES / kernel / common / bb416d18b850faaa44bd3bb67c9728922c3cce98 / . / drivers / soundwire / cadence_master.h
blob: eb902b19c5a4bd019d54d614d51ec7aae4449d2a [file] [log] [blame]
Vinod Koul2f52a512017-12-14 11:19:41 +0530[diff] [blame]1// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
2// Copyright(c) 2015-17 Intel Corporation.
Vinod Koul5d6b3c82018-04-26 18:38:53 +0530[diff] [blame]3#include <sound/soc.h>
Vinod Koul2f52a512017-12-14 11:19:41 +0530[diff] [blame]4
5#ifndef __SDW_CADENCE_H
6#define __SDW_CADENCE_H
7
8/**
Vinod Koul07abeff2018-04-26 18:38:48 +0530[diff] [blame]9 * struct sdw_cdns_pdi: PDI (Physical Data Interface) instance
10 *
11 * @assigned: pdi assigned
12 * @num: pdi number
13 * @intel_alh_id: link identifier
14 * @l_ch_num: low channel for PDI
15 * @h_ch_num: high channel for PDI
16 * @ch_count: total channel count for PDI
17 * @dir: data direction
18 * @type: stream type, PDM or PCM
19 */
20struct sdw_cdns_pdi {
21 bool assigned;
22 int num;
23 int intel_alh_id;
24 int l_ch_num;
25 int h_ch_num;
26 int ch_count;
27 enum sdw_data_direction dir;
28 enum sdw_stream_type type;
29};
30
31/**
32 * struct sdw_cdns_port: Cadence port structure
33 *
34 * @num: port number
35 * @assigned: port assigned
36 * @ch: channel count
37 * @direction: data port direction
38 * @pdi: pdi for this port
39 */
40struct sdw_cdns_port {
41 unsigned int num;
42 bool assigned;
43 unsigned int ch;
44 enum sdw_data_direction direction;
45 struct sdw_cdns_pdi *pdi;
46};
47
48/**
49 * struct sdw_cdns_streams: Cadence stream data structure
50 *
51 * @num_bd: number of bidirectional streams
52 * @num_in: number of input streams
53 * @num_out: number of output streams
54 * @num_ch_bd: number of bidirectional stream channels
55 * @num_ch_bd: number of input stream channels
56 * @num_ch_bd: number of output stream channels
57 * @num_pdi: total number of PDIs
58 * @bd: bidirectional streams
59 * @in: input streams
60 * @out: output streams
61 */
62struct sdw_cdns_streams {
63 unsigned int num_bd;
64 unsigned int num_in;
65 unsigned int num_out;
66 unsigned int num_ch_bd;
67 unsigned int num_ch_in;
68 unsigned int num_ch_out;
69 unsigned int num_pdi;
70 struct sdw_cdns_pdi *bd;
71 struct sdw_cdns_pdi *in;
72 struct sdw_cdns_pdi *out;
73};
74
75/**
76 * struct sdw_cdns_stream_config: stream configuration
77 *
78 * @pcm_bd: number of bidirectional PCM streams supported
79 * @pcm_in: number of input PCM streams supported
80 * @pcm_out: number of output PCM streams supported
81 * @pdm_bd: number of bidirectional PDM streams supported
82 * @pdm_in: number of input PDM streams supported
83 * @pdm_out: number of output PDM streams supported
84 */
85struct sdw_cdns_stream_config {
86 unsigned int pcm_bd;
87 unsigned int pcm_in;
88 unsigned int pcm_out;
89 unsigned int pdm_bd;
90 unsigned int pdm_in;
91 unsigned int pdm_out;
92};
93
94/**
Vinod Koul5d6b3c82018-04-26 18:38:53 +0530[diff] [blame]95 * struct sdw_cdns_dma_data: Cadence DMA data
96 *
97 * @name: SoundWire stream name
98 * @nr_ports: Number of ports
99 * @port: Ports
100 * @bus: Bus handle
101 * @stream_type: Stream type
102 * @link_id: Master link id
103 */
104struct sdw_cdns_dma_data {
105 char *name;
106 struct sdw_stream_runtime *stream;
107 int nr_ports;
108 struct sdw_cdns_port **port;
109 struct sdw_bus *bus;
110 enum sdw_stream_type stream_type;
111 int link_id;
112};
113
114/**
Vinod Koul2f52a512017-12-14 11:19:41 +0530[diff] [blame]115 * struct sdw_cdns - Cadence driver context
116 * @dev: Linux device
117 * @bus: Bus handle
118 * @instance: instance number
Sanyog Kale956baa12017-12-14 11:19:42 +0530[diff] [blame]119 * @response_buf: SoundWire response buffer
120 * @tx_complete: Tx completion
121 * @defer: Defer pointer
Vinod Koul07abeff2018-04-26 18:38:48 +0530[diff] [blame]122 * @ports: Data ports
123 * @num_ports: Total number of data ports
124 * @pcm: PCM streams
125 * @pdm: PDM streams
Vinod Koul2f52a512017-12-14 11:19:41 +0530[diff] [blame]126 * @registers: Cadence registers
127 * @link_up: Link status
Sanyog Kale956baa12017-12-14 11:19:42 +0530[diff] [blame]128 * @msg_count: Messages sent on bus
Vinod Koul2f52a512017-12-14 11:19:41 +0530[diff] [blame]129 */
130struct sdw_cdns {
131 struct device *dev;
132 struct sdw_bus bus;
133 unsigned int instance;
134
Sanyog Kale956baa12017-12-14 11:19:42 +0530[diff] [blame]135 u32 response_buf[0x80];
136 struct completion tx_complete;
137 struct sdw_defer *defer;
138
Vinod Koul07abeff2018-04-26 18:38:48 +0530[diff] [blame]139 struct sdw_cdns_port *ports;
140 int num_ports;
141
142 struct sdw_cdns_streams pcm;
143 struct sdw_cdns_streams pdm;
144
Vinod Koul2f52a512017-12-14 11:19:41 +0530[diff] [blame]145 void __iomem *registers;
146
147 bool link_up;
Sanyog Kale956baa12017-12-14 11:19:42 +0530[diff] [blame]148 unsigned int msg_count;
Vinod Koul2f52a512017-12-14 11:19:41 +0530[diff] [blame]149};
150
151#define bus_to_cdns(_bus) container_of(_bus, struct sdw_cdns, bus)
152
153/* Exported symbols */
154
Sanyog Kale956baa12017-12-14 11:19:42 +0530[diff] [blame]155int sdw_cdns_probe(struct sdw_cdns *cdns);
156extern struct sdw_master_ops sdw_cdns_master_ops;
157
Vinod Koul2f52a512017-12-14 11:19:41 +0530[diff] [blame]158irqreturn_t sdw_cdns_irq(int irq, void *dev_id);
159irqreturn_t sdw_cdns_thread(int irq, void *dev_id);
160
161int sdw_cdns_init(struct sdw_cdns *cdns);
Vinod Koul07abeff2018-04-26 18:38:48 +0530[diff] [blame]162int sdw_cdns_pdi_init(struct sdw_cdns *cdns,
163 struct sdw_cdns_stream_config config);
Sanyog Kale956baa12017-12-14 11:19:42 +0530[diff] [blame]164int sdw_cdns_enable_interrupt(struct sdw_cdns *cdns);
165
Vinod Koul5d6b3c82018-04-26 18:38:53 +0530[diff] [blame]166int sdw_cdns_get_stream(struct sdw_cdns *cdns,
167 struct sdw_cdns_streams *stream,
168 u32 ch, u32 dir);
169int sdw_cdns_alloc_stream(struct sdw_cdns *cdns,
170 struct sdw_cdns_streams *stream,
171 struct sdw_cdns_port *port, u32 ch, u32 dir);
172void sdw_cdns_config_stream(struct sdw_cdns *cdns, struct sdw_cdns_port *port,
173 u32 ch, u32 dir, struct sdw_cdns_pdi *pdi);
174
175void sdw_cdns_shutdown(struct snd_pcm_substream *substream,
176 struct snd_soc_dai *dai);
177int sdw_cdns_pcm_set_stream(struct snd_soc_dai *dai,
178 void *stream, int direction);
179int sdw_cdns_pdm_set_stream(struct snd_soc_dai *dai,
180 void *stream, int direction);
181
182enum sdw_command_response
183cdns_reset_page_addr(struct sdw_bus *bus, unsigned int dev_num);
184
Shreyas NCc91605f2018-04-26 18:38:43 +0530[diff] [blame]185enum sdw_command_response
186cdns_xfer_msg(struct sdw_bus *bus, struct sdw_msg *msg);
Vinod Koul2f52a512017-12-14 11:19:41 +0530[diff] [blame]187
Shreyas NCc91605f2018-04-26 18:38:43 +0530[diff] [blame]188enum sdw_command_response
189cdns_xfer_msg_defer(struct sdw_bus *bus,
190 struct sdw_msg *msg, struct sdw_defer *defer);
191
192enum sdw_command_response
193cdns_reset_page_addr(struct sdw_bus *bus, unsigned int dev_num);
Vinod Koul07abeff2018-04-26 18:38:48 +0530[diff] [blame]194
195int cdns_bus_conf(struct sdw_bus *bus, struct sdw_bus_params *params);
Vinod Koul5d6b3c82018-04-26 18:38:53 +0530[diff] [blame]196
197int cdns_set_sdw_stream(struct snd_soc_dai *dai,
198 void *stream, bool pcm, int direction);
Vinod Koul2f52a512017-12-14 11:19:41 +0530[diff] [blame]199#endif /* __SDW_CADENCE_H */