xref: /openbmc/linux/sound/pci/lola/lola_proc.c (revision 9b799b78)
1 /*
2  *  Support for Digigram Lola PCI-e boards
3  *
4  *  Copyright (c) 2011 Takashi Iwai <tiwai@suse.de>
5  *
6  *  This program is free software; you can redistribute it and/or modify it
7  *  under the terms of the GNU General Public License as published by the Free
8  *  Software Foundation; either version 2 of the License, or (at your option)
9  *  any later version.
10  *
11  *  This program is distributed in the hope that it will be useful, but WITHOUT
12  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
14  *  more details.
15  *
16  *  You should have received a copy of the GNU General Public License along with
17  *  this program; if not, write to the Free Software Foundation, Inc., 59
18  *  Temple Place - Suite 330, Boston, MA  02111-1307, USA.
19  */
20 
21 #include <linux/kernel.h>
22 #include <linux/init.h>
23 #include <linux/io.h>
24 #include <sound/core.h>
25 #include <sound/info.h>
26 #include <sound/pcm.h>
27 #include "lola.h"
28 
29 static void print_audio_widget(struct snd_info_buffer *buffer,
30 			       struct lola *chip, int nid, const char *name)
31 {
32 	unsigned int val;
33 
34 	lola_read_param(chip, nid, LOLA_PAR_AUDIO_WIDGET_CAP, &val);
35 	snd_iprintf(buffer, "Node 0x%02x %s wcaps 0x%x\n", nid, name, val);
36 	lola_read_param(chip, nid, LOLA_PAR_STREAM_FORMATS, &val);
37 	snd_iprintf(buffer, "  Formats: 0x%x\n", val);
38 }
39 
40 static void print_pin_widget(struct snd_info_buffer *buffer,
41 			     struct lola *chip, int nid, unsigned int ampcap,
42 			     const char *name)
43 {
44 	unsigned int val;
45 
46 	lola_read_param(chip, nid, LOLA_PAR_AUDIO_WIDGET_CAP, &val);
47 	snd_iprintf(buffer, "Node 0x%02x %s wcaps 0x%x\n", nid, name, val);
48 	if (val == 0x00400200)
49 		return;
50 	lola_read_param(chip, nid, ampcap, &val);
51 	snd_iprintf(buffer, "  Amp-Caps: 0x%x\n", val);
52 	snd_iprintf(buffer, "    mute=%d, step-size=%d, steps=%d, ofs=%d\n",
53 		    LOLA_AMP_MUTE_CAPABLE(val),
54 		    LOLA_AMP_STEP_SIZE(val),
55 		    LOLA_AMP_NUM_STEPS(val),
56 		    LOLA_AMP_OFFSET(val));
57 	lola_codec_read(chip, nid, LOLA_VERB_GET_MAX_LEVEL, 0, 0, &val, NULL);
58 	snd_iprintf(buffer, "  Max-level: 0x%x\n", val);
59 }
60 
61 static void print_clock_widget(struct snd_info_buffer *buffer,
62 			       struct lola *chip, int nid)
63 {
64 	int i, j, num_clocks;
65 	unsigned int val;
66 
67 	lola_read_param(chip, nid, LOLA_PAR_AUDIO_WIDGET_CAP, &val);
68 	snd_iprintf(buffer, "Node 0x%02x [Clock] wcaps 0x%x\n", nid, val);
69 	num_clocks = val & 0xff;
70 	for (i = 0; i < num_clocks; i += 4) {
71 		unsigned int res_ex;
72 		unsigned short items[4];
73 		const char *name;
74 
75 		lola_codec_read(chip, nid, LOLA_VERB_GET_CLOCK_LIST,
76 				i, 0, &val, &res_ex);
77 		items[0] = val & 0xfff;
78 		items[1] = (val >> 16) & 0xfff;
79 		items[2] = res_ex & 0xfff;
80 		items[3] = (res_ex >> 16) & 0xfff;
81 		for (j = 0; j < 4; j++) {
82 			unsigned char type = items[j] >> 8;
83 			unsigned int freq = items[j] & 0xff;
84 			if (i + j >= num_clocks)
85 				break;
86 			if (type == LOLA_CLOCK_TYPE_INTERNAL) {
87 				name = "Internal";
88 				freq = lola_sample_rate_convert(freq);
89 			} else if (type == LOLA_CLOCK_TYPE_VIDEO) {
90 				name = "Video";
91 				freq = lola_sample_rate_convert(freq);
92 			} else {
93 				name = "Other";
94 			}
95 			snd_iprintf(buffer, "  Clock %d: Type %d:%s, freq=%d\n",
96 				    i + j, type, name, freq);
97 		}
98 	}
99 }
100 
101 static void print_mixer_widget(struct snd_info_buffer *buffer,
102 			       struct lola *chip, int nid)
103 {
104 	unsigned int val;
105 
106 	lola_read_param(chip, nid, LOLA_PAR_AUDIO_WIDGET_CAP, &val);
107 	snd_iprintf(buffer, "Node 0x%02x [Mixer] wcaps 0x%x\n", nid, val);
108 }
109 
110 static void lola_proc_codec_read(struct snd_info_entry *entry,
111 				 struct snd_info_buffer *buffer)
112 {
113 	struct lola *chip = entry->private_data;
114 	unsigned int val;
115 	int i, nid;
116 
117 	lola_read_param(chip, 0, LOLA_PAR_VENDOR_ID, &val);
118 	snd_iprintf(buffer, "Vendor: 0x%08x\n", val);
119 	lola_read_param(chip, 1, LOLA_PAR_FUNCTION_TYPE, &val);
120 	snd_iprintf(buffer, "Function Type: %d\n", val);
121 	lola_read_param(chip, 1, LOLA_PAR_SPECIFIC_CAPS, &val);
122 	snd_iprintf(buffer, "Specific-Caps: 0x%08x\n", val);
123 	snd_iprintf(buffer, "  Pins-In %d, Pins-Out %d\n",
124 		    chip->pin[CAPT].num_pins, chip->pin[PLAY].num_pins);
125 	nid = 2;
126 	for (i = 0; i < chip->pcm[CAPT].num_streams; i++, nid++)
127 		print_audio_widget(buffer, chip, nid, "[Audio-In]");
128 	for (i = 0; i < chip->pcm[PLAY].num_streams; i++, nid++)
129 		print_audio_widget(buffer, chip, nid, "[Audio-Out]");
130 	for (i = 0; i < chip->pin[CAPT].num_pins; i++, nid++)
131 		print_pin_widget(buffer, chip, nid, LOLA_PAR_AMP_IN_CAP,
132 				 "[Pin-In]");
133 	for (i = 0; i < chip->pin[PLAY].num_pins; i++, nid++)
134 		print_pin_widget(buffer, chip, nid, LOLA_PAR_AMP_OUT_CAP,
135 				 "[Pin-Out]");
136 	if (LOLA_AFG_CLOCK_WIDGET_PRESENT(chip->lola_caps)) {
137 		print_clock_widget(buffer, chip, nid);
138 		nid++;
139 	}
140 	if (LOLA_AFG_MIXER_WIDGET_PRESENT(chip->lola_caps)) {
141 		print_mixer_widget(buffer, chip, nid);
142 		nid++;
143 	}
144 }
145 
146 /* direct codec access for debugging */
147 static void lola_proc_codec_rw_write(struct snd_info_entry *entry,
148 				     struct snd_info_buffer *buffer)
149 {
150 	struct lola *chip = entry->private_data;
151 	char line[64];
152 	unsigned int id, verb, data, extdata;
153 	while (!snd_info_get_line(buffer, line, sizeof(line))) {
154 		if (sscanf(line, "%u %u %u %u", &id, &verb, &data, &extdata) != 4)
155 			continue;
156 		lola_codec_read(chip, id, verb, data, extdata,
157 				&chip->debug_res,
158 				&chip->debug_res_ex);
159 	}
160 }
161 
162 static void lola_proc_codec_rw_read(struct snd_info_entry *entry,
163 				    struct snd_info_buffer *buffer)
164 {
165 	struct lola *chip = entry->private_data;
166 	snd_iprintf(buffer, "0x%x 0x%x\n", chip->debug_res, chip->debug_res_ex);
167 }
168 
169 /*
170  * dump some registers
171  */
172 static void lola_proc_regs_read(struct snd_info_entry *entry,
173 				struct snd_info_buffer *buffer)
174 {
175 	struct lola *chip = entry->private_data;
176 	int i;
177 
178 	for (i = 0; i < 0x40; i += 4) {
179 		snd_iprintf(buffer, "BAR0 %02x: %08x\n", i,
180 			    readl(chip->bar[BAR0].remap_addr + i));
181 	}
182 	snd_iprintf(buffer, "\n");
183 	for (i = 0; i < 0x30; i += 4) {
184 		snd_iprintf(buffer, "BAR1 %02x: %08x\n", i,
185 			    readl(chip->bar[BAR1].remap_addr + i));
186 	}
187 	snd_iprintf(buffer, "\n");
188 	for (i = 0x80; i < 0xa0; i += 4) {
189 		snd_iprintf(buffer, "BAR1 %02x: %08x\n", i,
190 			    readl(chip->bar[BAR1].remap_addr + i));
191 	}
192 	snd_iprintf(buffer, "\n");
193 	for (i = 0; i < 32; i++) {
194 		snd_iprintf(buffer, "DSD %02x STS  %08x\n", i,
195 			    lola_dsd_read(chip, i, STS));
196 		snd_iprintf(buffer, "DSD %02x LPIB %08x\n", i,
197 			    lola_dsd_read(chip, i, LPIB));
198 		snd_iprintf(buffer, "DSD %02x CTL  %08x\n", i,
199 			    lola_dsd_read(chip, i, CTL));
200 		snd_iprintf(buffer, "DSD %02x LVIL %08x\n", i,
201 			    lola_dsd_read(chip, i, LVI));
202 		snd_iprintf(buffer, "DSD %02x BDPL %08x\n", i,
203 			    lola_dsd_read(chip, i, BDPL));
204 		snd_iprintf(buffer, "DSD %02x BDPU %08x\n", i,
205 			    lola_dsd_read(chip, i, BDPU));
206 	}
207 }
208 
209 void lola_proc_debug_new(struct lola *chip)
210 {
211 	struct snd_info_entry *entry;
212 
213 	if (!snd_card_proc_new(chip->card, "codec", &entry))
214 		snd_info_set_text_ops(entry, chip, lola_proc_codec_read);
215 	if (!snd_card_proc_new(chip->card, "codec_rw", &entry)) {
216 		snd_info_set_text_ops(entry, chip, lola_proc_codec_rw_read);
217 		entry->mode |= S_IWUSR;
218 		entry->c.text.write = lola_proc_codec_rw_write;
219 	}
220 	if (!snd_card_proc_new(chip->card, "regs", &entry))
221 		snd_info_set_text_ops(entry, chip, lola_proc_regs_read);
222 }
223