xref: /openbmc/linux/sound/pci/pcxhr/pcxhr_hwdep.c (revision 413d6ed3)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * Driver for Digigram pcxhr compatible soundcards
4  *
5  * hwdep device manager
6  *
7  * Copyright (c) 2004 by Digigram <alsa@digigram.com>
8  */
9 
10 #include <linux/interrupt.h>
11 #include <linux/vmalloc.h>
12 #include <linux/firmware.h>
13 #include <linux/pci.h>
14 #include <linux/module.h>
15 #include <linux/io.h>
16 #include <sound/core.h>
17 #include <sound/hwdep.h>
18 #include "pcxhr.h"
19 #include "pcxhr_mixer.h"
20 #include "pcxhr_hwdep.h"
21 #include "pcxhr_core.h"
22 #include "pcxhr_mix22.h"
23 
24 
25 static int pcxhr_sub_init(struct pcxhr_mgr *mgr);
26 /*
27  * get basic information and init pcxhr card
28  */
29 static int pcxhr_init_board(struct pcxhr_mgr *mgr)
30 {
31 	int err;
32 	struct pcxhr_rmh rmh;
33 	int card_streams;
34 
35 	/* calc the number of all streams used */
36 	if (mgr->mono_capture)
37 		card_streams = mgr->capture_chips * 2;
38 	else
39 		card_streams = mgr->capture_chips;
40 	card_streams += mgr->playback_chips * PCXHR_PLAYBACK_STREAMS;
41 
42 	/* enable interrupts */
43 	pcxhr_enable_dsp(mgr);
44 
45 	pcxhr_init_rmh(&rmh, CMD_SUPPORTED);
46 	err = pcxhr_send_msg(mgr, &rmh);
47 	if (err)
48 		return err;
49 	/* test 4, 8 or 12 phys out */
50 	if ((rmh.stat[0] & MASK_FIRST_FIELD) < mgr->playback_chips * 2)
51 		return -EINVAL;
52 	/* test 4, 8 or 2 phys in */
53 	if (((rmh.stat[0] >> (2 * FIELD_SIZE)) & MASK_FIRST_FIELD) <
54 	    mgr->capture_chips * 2)
55 		return -EINVAL;
56 	/* test max nb substream per board */
57 	if ((rmh.stat[1] & 0x5F) < card_streams)
58 		return -EINVAL;
59 	/* test max nb substream per pipe */
60 	if (((rmh.stat[1] >> 7) & 0x5F) < PCXHR_PLAYBACK_STREAMS)
61 		return -EINVAL;
62 	dev_dbg(&mgr->pci->dev,
63 		"supported formats : playback=%x capture=%x\n",
64 		    rmh.stat[2], rmh.stat[3]);
65 
66 	pcxhr_init_rmh(&rmh, CMD_VERSION);
67 	/* firmware num for DSP */
68 	rmh.cmd[0] |= mgr->firmware_num;
69 	/* transfer granularity in samples (should be multiple of 48) */
70 	rmh.cmd[1] = (1<<23) + mgr->granularity;
71 	rmh.cmd_len = 2;
72 	err = pcxhr_send_msg(mgr, &rmh);
73 	if (err)
74 		return err;
75 	dev_dbg(&mgr->pci->dev,
76 		"PCXHR DSP version is %d.%d.%d\n", (rmh.stat[0]>>16)&0xff,
77 		    (rmh.stat[0]>>8)&0xff, rmh.stat[0]&0xff);
78 	mgr->dsp_version = rmh.stat[0];
79 
80 	if (mgr->is_hr_stereo)
81 		err = hr222_sub_init(mgr);
82 	else
83 		err = pcxhr_sub_init(mgr);
84 	return err;
85 }
86 
87 static int pcxhr_sub_init(struct pcxhr_mgr *mgr)
88 {
89 	int err;
90 	struct pcxhr_rmh rmh;
91 
92 	/* get options */
93 	pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_READ);
94 	rmh.cmd[0] |= IO_NUM_REG_STATUS;
95 	rmh.cmd[1]  = REG_STATUS_OPTIONS;
96 	rmh.cmd_len = 2;
97 	err = pcxhr_send_msg(mgr, &rmh);
98 	if (err)
99 		return err;
100 
101 	if ((rmh.stat[1] & REG_STATUS_OPT_DAUGHTER_MASK) ==
102 	    REG_STATUS_OPT_ANALOG_BOARD)
103 		mgr->board_has_analog = 1;	/* analog addon board found */
104 
105 	/* unmute inputs */
106 	err = pcxhr_write_io_num_reg_cont(mgr, REG_CONT_UNMUTE_INPUTS,
107 					  REG_CONT_UNMUTE_INPUTS, NULL);
108 	if (err)
109 		return err;
110 	/* unmute outputs (a write to IO_NUM_REG_MUTE_OUT mutes!) */
111 	pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_READ);
112 	rmh.cmd[0] |= IO_NUM_REG_MUTE_OUT;
113 	if (DSP_EXT_CMD_SET(mgr)) {
114 		rmh.cmd[1]  = 1;	/* unmute digital plugs */
115 		rmh.cmd_len = 2;
116 	}
117 	err = pcxhr_send_msg(mgr, &rmh);
118 	return err;
119 }
120 
121 void pcxhr_reset_board(struct pcxhr_mgr *mgr)
122 {
123 	struct pcxhr_rmh rmh;
124 
125 	if (mgr->dsp_loaded & (1 << PCXHR_FIRMWARE_DSP_MAIN_INDEX)) {
126 		/* mute outputs */
127 	    if (!mgr->is_hr_stereo) {
128 		/* a read to IO_NUM_REG_MUTE_OUT register unmutes! */
129 		pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_WRITE);
130 		rmh.cmd[0] |= IO_NUM_REG_MUTE_OUT;
131 		pcxhr_send_msg(mgr, &rmh);
132 		/* mute inputs */
133 		pcxhr_write_io_num_reg_cont(mgr, REG_CONT_UNMUTE_INPUTS,
134 					    0, NULL);
135 	    }
136 		/* stereo cards mute with reset of dsp */
137 	}
138 	/* reset pcxhr dsp */
139 	if (mgr->dsp_loaded & (1 << PCXHR_FIRMWARE_DSP_EPRM_INDEX))
140 		pcxhr_reset_dsp(mgr);
141 	/* reset second xilinx */
142 	if (mgr->dsp_loaded & (1 << PCXHR_FIRMWARE_XLX_COM_INDEX)) {
143 		pcxhr_reset_xilinx_com(mgr);
144 		mgr->dsp_loaded = 1;
145 	}
146 	return;
147 }
148 
149 
150 /*
151  *  allocate a playback/capture pipe (pcmp0/pcmc0)
152  */
153 static int pcxhr_dsp_allocate_pipe(struct pcxhr_mgr *mgr,
154 				   struct pcxhr_pipe *pipe,
155 				   int is_capture, int pin)
156 {
157 	int stream_count, audio_count;
158 	int err;
159 	struct pcxhr_rmh rmh;
160 
161 	if (is_capture) {
162 		stream_count = 1;
163 		if (mgr->mono_capture)
164 			audio_count = 1;
165 		else
166 			audio_count = 2;
167 	} else {
168 		stream_count = PCXHR_PLAYBACK_STREAMS;
169 		audio_count = 2;	/* always stereo */
170 	}
171 	dev_dbg(&mgr->pci->dev, "snd_add_ref_pipe pin(%d) pcm%c0\n",
172 		    pin, is_capture ? 'c' : 'p');
173 	pipe->is_capture = is_capture;
174 	pipe->first_audio = pin;
175 	/* define pipe (P_PCM_ONLY_MASK (0x020000) is not necessary) */
176 	pcxhr_init_rmh(&rmh, CMD_RES_PIPE);
177 	pcxhr_set_pipe_cmd_params(&rmh, is_capture, pin,
178 				  audio_count, stream_count);
179 	rmh.cmd[1] |= 0x020000; /* add P_PCM_ONLY_MASK */
180 	if (DSP_EXT_CMD_SET(mgr)) {
181 		/* add channel mask to command */
182 	  rmh.cmd[rmh.cmd_len++] = (audio_count == 1) ? 0x01 : 0x03;
183 	}
184 	err = pcxhr_send_msg(mgr, &rmh);
185 	if (err < 0) {
186 		dev_err(&mgr->pci->dev, "error pipe allocation "
187 			   "(CMD_RES_PIPE) err=%x!\n", err);
188 		return err;
189 	}
190 	pipe->status = PCXHR_PIPE_DEFINED;
191 
192 	return 0;
193 }
194 
195 /*
196  *  free playback/capture pipe (pcmp0/pcmc0)
197  */
198 #if 0
199 static int pcxhr_dsp_free_pipe( struct pcxhr_mgr *mgr, struct pcxhr_pipe *pipe)
200 {
201 	struct pcxhr_rmh rmh;
202 	int capture_mask = 0;
203 	int playback_mask = 0;
204 	int err = 0;
205 
206 	if (pipe->is_capture)
207 		capture_mask  = (1 << pipe->first_audio);
208 	else
209 		playback_mask = (1 << pipe->first_audio);
210 
211 	/* stop one pipe */
212 	err = pcxhr_set_pipe_state(mgr, playback_mask, capture_mask, 0);
213 	if (err < 0)
214 		dev_err(&mgr->pci->dev, "error stopping pipe!\n");
215 	/* release the pipe */
216 	pcxhr_init_rmh(&rmh, CMD_FREE_PIPE);
217 	pcxhr_set_pipe_cmd_params(&rmh, pipe->is_capture, pipe->first_audio,
218 				  0, 0);
219 	err = pcxhr_send_msg(mgr, &rmh);
220 	if (err < 0)
221 		dev_err(&mgr->pci->dev, "error pipe release "
222 			   "(CMD_FREE_PIPE) err(%x)\n", err);
223 	pipe->status = PCXHR_PIPE_UNDEFINED;
224 	return err;
225 }
226 #endif
227 
228 
229 static int pcxhr_config_pipes(struct pcxhr_mgr *mgr)
230 {
231 	int err, i, j;
232 	struct snd_pcxhr *chip;
233 	struct pcxhr_pipe *pipe;
234 
235 	/* allocate the pipes on the dsp */
236 	for (i = 0; i < mgr->num_cards; i++) {
237 		chip = mgr->chip[i];
238 		if (chip->nb_streams_play) {
239 			pipe = &chip->playback_pipe;
240 			err = pcxhr_dsp_allocate_pipe( mgr, pipe, 0, i*2);
241 			if (err)
242 				return err;
243 			for(j = 0; j < chip->nb_streams_play; j++)
244 				chip->playback_stream[j].pipe = pipe;
245 		}
246 		for (j = 0; j < chip->nb_streams_capt; j++) {
247 			pipe = &chip->capture_pipe[j];
248 			err = pcxhr_dsp_allocate_pipe(mgr, pipe, 1, i*2 + j);
249 			if (err)
250 				return err;
251 			chip->capture_stream[j].pipe = pipe;
252 		}
253 	}
254 	return 0;
255 }
256 
257 static int pcxhr_start_pipes(struct pcxhr_mgr *mgr)
258 {
259 	int i, j;
260 	struct snd_pcxhr *chip;
261 	int playback_mask = 0;
262 	int capture_mask = 0;
263 
264 	/* start all the pipes on the dsp */
265 	for (i = 0; i < mgr->num_cards; i++) {
266 		chip = mgr->chip[i];
267 		if (chip->nb_streams_play)
268 			playback_mask |= 1 << chip->playback_pipe.first_audio;
269 		for (j = 0; j < chip->nb_streams_capt; j++)
270 			capture_mask |= 1 << chip->capture_pipe[j].first_audio;
271 	}
272 	return pcxhr_set_pipe_state(mgr, playback_mask, capture_mask, 1);
273 }
274 
275 
276 static int pcxhr_dsp_load(struct pcxhr_mgr *mgr, int index,
277 			  const struct firmware *dsp)
278 {
279 	int err, card_index;
280 
281 	dev_dbg(&mgr->pci->dev,
282 		"loading dsp [%d] size = %zd\n", index, dsp->size);
283 
284 	switch (index) {
285 	case PCXHR_FIRMWARE_XLX_INT_INDEX:
286 		pcxhr_reset_xilinx_com(mgr);
287 		return pcxhr_load_xilinx_binary(mgr, dsp, 0);
288 
289 	case PCXHR_FIRMWARE_XLX_COM_INDEX:
290 		pcxhr_reset_xilinx_com(mgr);
291 		return pcxhr_load_xilinx_binary(mgr, dsp, 1);
292 
293 	case PCXHR_FIRMWARE_DSP_EPRM_INDEX:
294 		pcxhr_reset_dsp(mgr);
295 		return pcxhr_load_eeprom_binary(mgr, dsp);
296 
297 	case PCXHR_FIRMWARE_DSP_BOOT_INDEX:
298 		return pcxhr_load_boot_binary(mgr, dsp);
299 
300 	case PCXHR_FIRMWARE_DSP_MAIN_INDEX:
301 		err = pcxhr_load_dsp_binary(mgr, dsp);
302 		if (err)
303 			return err;
304 		break;	/* continue with first init */
305 	default:
306 		dev_err(&mgr->pci->dev, "wrong file index\n");
307 		return -EFAULT;
308 	} /* end of switch file index*/
309 
310 	/* first communication with embedded */
311 	err = pcxhr_init_board(mgr);
312         if (err < 0) {
313 		dev_err(&mgr->pci->dev, "pcxhr could not be set up\n");
314 		return err;
315 	}
316 	err = pcxhr_config_pipes(mgr);
317         if (err < 0) {
318 		dev_err(&mgr->pci->dev, "pcxhr pipes could not be set up\n");
319 		return err;
320 	}
321        	/* create devices and mixer in accordance with HW options*/
322         for (card_index = 0; card_index < mgr->num_cards; card_index++) {
323 		struct snd_pcxhr *chip = mgr->chip[card_index];
324 
325 		if ((err = pcxhr_create_pcm(chip)) < 0)
326 			return err;
327 
328 		if (card_index == 0) {
329 			if ((err = pcxhr_create_mixer(chip->mgr)) < 0)
330 				return err;
331 		}
332 		if ((err = snd_card_register(chip->card)) < 0)
333 			return err;
334 	}
335 	err = pcxhr_start_pipes(mgr);
336         if (err < 0) {
337 		dev_err(&mgr->pci->dev, "pcxhr pipes could not be started\n");
338 		return err;
339 	}
340 	dev_dbg(&mgr->pci->dev,
341 		"pcxhr firmware downloaded and successfully set up\n");
342 
343 	return 0;
344 }
345 
346 /*
347  * fw loader entry
348  */
349 int pcxhr_setup_firmware(struct pcxhr_mgr *mgr)
350 {
351 	static const char * const fw_files[][5] = {
352 	[0] = { "xlxint.dat", "xlxc882hr.dat",
353 		"dspe882.e56", "dspb882hr.b56", "dspd882.d56" },
354 	[1] = { "xlxint.dat", "xlxc882e.dat",
355 		"dspe882.e56", "dspb882e.b56", "dspd882.d56" },
356 	[2] = { "xlxint.dat", "xlxc1222hr.dat",
357 		"dspe882.e56", "dspb1222hr.b56", "dspd1222.d56" },
358 	[3] = { "xlxint.dat", "xlxc1222e.dat",
359 		"dspe882.e56", "dspb1222e.b56", "dspd1222.d56" },
360 	[4] = { NULL, "xlxc222.dat",
361 		"dspe924.e56", "dspb924.b56", "dspd222.d56" },
362 	[5] = { NULL, "xlxc924.dat",
363 		"dspe924.e56", "dspb924.b56", "dspd222.d56" },
364 	};
365 	char path[32];
366 
367 	const struct firmware *fw_entry;
368 	int i, err;
369 	int fw_set = mgr->fw_file_set;
370 
371 	for (i = 0; i < 5; i++) {
372 		if (!fw_files[fw_set][i])
373 			continue;
374 		sprintf(path, "pcxhr/%s", fw_files[fw_set][i]);
375 		if (request_firmware(&fw_entry, path, &mgr->pci->dev)) {
376 			dev_err(&mgr->pci->dev,
377 				"pcxhr: can't load firmware %s\n",
378 				   path);
379 			return -ENOENT;
380 		}
381 		/* fake hwdep dsp record */
382 		err = pcxhr_dsp_load(mgr, i, fw_entry);
383 		release_firmware(fw_entry);
384 		if (err < 0)
385 			return err;
386 		mgr->dsp_loaded |= 1 << i;
387 	}
388 	return 0;
389 }
390 
391 MODULE_FIRMWARE("pcxhr/xlxint.dat");
392 MODULE_FIRMWARE("pcxhr/xlxc882hr.dat");
393 MODULE_FIRMWARE("pcxhr/xlxc882e.dat");
394 MODULE_FIRMWARE("pcxhr/dspe882.e56");
395 MODULE_FIRMWARE("pcxhr/dspb882hr.b56");
396 MODULE_FIRMWARE("pcxhr/dspb882e.b56");
397 MODULE_FIRMWARE("pcxhr/dspd882.d56");
398 
399 MODULE_FIRMWARE("pcxhr/xlxc1222hr.dat");
400 MODULE_FIRMWARE("pcxhr/xlxc1222e.dat");
401 MODULE_FIRMWARE("pcxhr/dspb1222hr.b56");
402 MODULE_FIRMWARE("pcxhr/dspb1222e.b56");
403 MODULE_FIRMWARE("pcxhr/dspd1222.d56");
404 
405 MODULE_FIRMWARE("pcxhr/xlxc222.dat");
406 MODULE_FIRMWARE("pcxhr/xlxc924.dat");
407 MODULE_FIRMWARE("pcxhr/dspe924.e56");
408 MODULE_FIRMWARE("pcxhr/dspb924.b56");
409 MODULE_FIRMWARE("pcxhr/dspd222.d56");
410