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10#include "rsnd.h"
11
12#define SSIU_NAME "ssiu"
13
14struct rsnd_ssiu {
15 struct rsnd_mod mod;
16};
17
18#define rsnd_ssiu_nr(priv) ((priv)->ssiu_nr)
19#define for_each_rsnd_ssiu(pos, priv, i) \
20 for (i = 0; \
21 (i < rsnd_ssiu_nr(priv)) && \
22 ((pos) = ((struct rsnd_ssiu *)(priv)->ssiu + i)); \
23 i++)
24
25static int rsnd_ssiu_init(struct rsnd_mod *mod,
26 struct rsnd_dai_stream *io,
27 struct rsnd_priv *priv)
28{
29 struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
30 u32 multi_ssi_slaves = rsnd_ssi_multi_slaves_runtime(io);
31 int use_busif = rsnd_ssi_use_busif(io);
32 int id = rsnd_mod_id(mod);
33 u32 mask1, val1;
34 u32 mask2, val2;
35
36
37 switch (id) {
38 case 0:
39 case 1:
40 case 2:
41 case 3:
42 case 4:
43 rsnd_mod_write(mod, SSI_SYS_STATUS0, 0xf << (id * 4));
44 rsnd_mod_write(mod, SSI_SYS_STATUS2, 0xf << (id * 4));
45 rsnd_mod_write(mod, SSI_SYS_STATUS4, 0xf << (id * 4));
46 rsnd_mod_write(mod, SSI_SYS_STATUS6, 0xf << (id * 4));
47 break;
48 case 9:
49 rsnd_mod_write(mod, SSI_SYS_STATUS1, 0xf << 4);
50 rsnd_mod_write(mod, SSI_SYS_STATUS3, 0xf << 4);
51 rsnd_mod_write(mod, SSI_SYS_STATUS5, 0xf << 4);
52 rsnd_mod_write(mod, SSI_SYS_STATUS7, 0xf << 4);
53 break;
54 }
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56
57
58
59 rsnd_mod_bset(mod, SSI_MODE0, (1 << id), !use_busif << id);
60
61
62
63
64 mask1 = (1 << 4) | (1 << 20);
65 mask2 = (1 << 4);
66 val1 = val2 = 0;
67 if (id == 8) {
68
69
70
71 } else if (rsnd_ssi_is_pin_sharing(io)) {
72 int shift = -1;
73
74 switch (id) {
75 case 1:
76 shift = 0;
77 break;
78 case 2:
79 shift = 2;
80 break;
81 case 4:
82 shift = 16;
83 break;
84 default:
85 return -EINVAL;
86 }
87
88 mask1 |= 0x3 << shift;
89 val1 = rsnd_rdai_is_clk_master(rdai) ?
90 0x2 << shift : 0x1 << shift;
91
92 } else if (multi_ssi_slaves) {
93
94 mask2 |= 0x00000007;
95 mask1 |= 0x0000000f;
96
97 switch (multi_ssi_slaves) {
98 case 0x0206:
99 val2 = (1 << 4) |
100 (rsnd_rdai_is_clk_master(rdai) ? 0x2 : 0x1);
101
102 case 0x0006:
103 val1 = rsnd_rdai_is_clk_master(rdai) ?
104 0xa : 0x5;
105
106 if (!val2)
107 val1 |= (1 << 4);
108 }
109 }
110
111 rsnd_mod_bset(mod, SSI_MODE1, mask1, val1);
112 rsnd_mod_bset(mod, SSI_MODE2, mask2, val2);
113
114 return 0;
115}
116
117static struct rsnd_mod_ops rsnd_ssiu_ops_gen1 = {
118 .name = SSIU_NAME,
119 .init = rsnd_ssiu_init,
120};
121
122static int rsnd_ssiu_init_gen2(struct rsnd_mod *mod,
123 struct rsnd_dai_stream *io,
124 struct rsnd_priv *priv)
125{
126 int hdmi = rsnd_ssi_hdmi_port(io);
127 int ret;
128 u32 mode = 0;
129
130 ret = rsnd_ssiu_init(mod, io, priv);
131 if (ret < 0)
132 return ret;
133
134 if (rsnd_runtime_is_ssi_tdm(io)) {
135
136
137
138
139
140 mode = 0x1;
141 }
142
143 rsnd_mod_write(mod, SSI_MODE, mode);
144
145 if (rsnd_ssi_use_busif(io)) {
146 rsnd_mod_write(mod, SSI_BUSIF_ADINR,
147 rsnd_get_adinr_bit(mod, io) |
148 (rsnd_io_is_play(io) ?
149 rsnd_runtime_channel_after_ctu(io) :
150 rsnd_runtime_channel_original(io)));
151 rsnd_mod_write(mod, SSI_BUSIF_MODE,
152 rsnd_get_busif_shift(io, mod) | 1);
153 rsnd_mod_write(mod, SSI_BUSIF_DALIGN,
154 rsnd_get_dalign(mod, io));
155 }
156
157 if (hdmi) {
158 enum rsnd_mod_type rsnd_ssi_array[] = {
159 RSND_MOD_SSIM1,
160 RSND_MOD_SSIM2,
161 RSND_MOD_SSIM3,
162 };
163 struct rsnd_mod *ssi_mod = rsnd_io_to_mod_ssi(io);
164 struct rsnd_mod *pos;
165 u32 val;
166 int i, shift;
167
168 i = rsnd_mod_id(ssi_mod);
169
170
171 val = i << 16 |
172 i << 20 |
173 i << 24 |
174 i << 28 |
175 i;
176
177 for_each_rsnd_mod_array(i, pos, io, rsnd_ssi_array) {
178 shift = (i * 4) + 16;
179 val = (val & ~(0xF << shift)) |
180 rsnd_mod_id(pos) << shift;
181 }
182
183 switch (hdmi) {
184 case RSND_SSI_HDMI_PORT0:
185 rsnd_mod_write(mod, HDMI0_SEL, val);
186 break;
187 case RSND_SSI_HDMI_PORT1:
188 rsnd_mod_write(mod, HDMI1_SEL, val);
189 break;
190 }
191 }
192
193 return 0;
194}
195
196static int rsnd_ssiu_start_gen2(struct rsnd_mod *mod,
197 struct rsnd_dai_stream *io,
198 struct rsnd_priv *priv)
199{
200 if (!rsnd_ssi_use_busif(io))
201 return 0;
202
203 rsnd_mod_write(mod, SSI_CTRL, 0x1);
204
205 if (rsnd_ssi_multi_slaves_runtime(io))
206 rsnd_mod_write(mod, SSI_CONTROL, 0x1);
207
208 return 0;
209}
210
211static int rsnd_ssiu_stop_gen2(struct rsnd_mod *mod,
212 struct rsnd_dai_stream *io,
213 struct rsnd_priv *priv)
214{
215 if (!rsnd_ssi_use_busif(io))
216 return 0;
217
218 rsnd_mod_write(mod, SSI_CTRL, 0);
219
220 if (rsnd_ssi_multi_slaves_runtime(io))
221 rsnd_mod_write(mod, SSI_CONTROL, 0);
222
223 return 0;
224}
225
226static struct rsnd_mod_ops rsnd_ssiu_ops_gen2 = {
227 .name = SSIU_NAME,
228 .init = rsnd_ssiu_init_gen2,
229 .start = rsnd_ssiu_start_gen2,
230 .stop = rsnd_ssiu_stop_gen2,
231};
232
233static struct rsnd_mod *rsnd_ssiu_mod_get(struct rsnd_priv *priv, int id)
234{
235 if (WARN_ON(id < 0 || id >= rsnd_ssiu_nr(priv)))
236 id = 0;
237
238 return rsnd_mod_get((struct rsnd_ssiu *)(priv->ssiu) + id);
239}
240
241int rsnd_ssiu_attach(struct rsnd_dai_stream *io,
242 struct rsnd_mod *ssi_mod)
243{
244 struct rsnd_priv *priv = rsnd_io_to_priv(io);
245 struct rsnd_mod *mod = rsnd_ssiu_mod_get(priv, rsnd_mod_id(ssi_mod));
246
247 rsnd_mod_confirm_ssi(ssi_mod);
248
249 return rsnd_dai_connect(mod, io, mod->type);
250}
251
252int rsnd_ssiu_probe(struct rsnd_priv *priv)
253{
254 struct device *dev = rsnd_priv_to_dev(priv);
255 struct rsnd_ssiu *ssiu;
256 struct rsnd_mod_ops *ops;
257 int i, nr, ret;
258
259
260 nr = priv->ssi_nr;
261 ssiu = devm_kzalloc(dev, sizeof(*ssiu) * nr, GFP_KERNEL);
262 if (!ssiu)
263 return -ENOMEM;
264
265 priv->ssiu = ssiu;
266 priv->ssiu_nr = nr;
267
268 if (rsnd_is_gen1(priv))
269 ops = &rsnd_ssiu_ops_gen1;
270 else
271 ops = &rsnd_ssiu_ops_gen2;
272
273 for_each_rsnd_ssiu(ssiu, priv, i) {
274 ret = rsnd_mod_init(priv, rsnd_mod_get(ssiu),
275 ops, NULL, rsnd_mod_get_status,
276 RSND_MOD_SSIU, i);
277 if (ret)
278 return ret;
279 }
280
281 return 0;
282}
283
284void rsnd_ssiu_remove(struct rsnd_priv *priv)
285{
286 struct rsnd_ssiu *ssiu;
287 int i;
288
289 for_each_rsnd_ssiu(ssiu, priv, i) {
290 rsnd_mod_quit(rsnd_mod_get(ssiu));
291 }
292}
293
