source: mainline/uspace/drv/audio/sb16/sb16.c

Last change on this file was a64970e1, checked in by Jiri Svoboda <jiri@…>, 5 months ago

Implement quiesce in HD Audio and SB16 drivers.

  • Property mode set to 100644
File size: 6.1 KB
Line 
1/*
2 * Copyright (c) 2025 Jiri Svoboda
3 * Copyright (c) 2011 Jan Vesely
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * - Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * - Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * - The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30#include <errno.h>
31#include <str_error.h>
32#include <macros.h>
33#include <audio_mixer_iface.h>
34#include <audio_pcm_iface.h>
35
36#include "ddf_log.h"
37#include "dsp_commands.h"
38#include "dsp.h"
39#include "sb16.h"
40
41extern audio_mixer_iface_t sb_mixer_iface;
42extern audio_pcm_iface_t sb_pcm_iface;
43
44static ddf_dev_ops_t sb_mixer_ops = {
45 .interfaces[AUDIO_MIXER_IFACE] = &sb_mixer_iface,
46};
47
48static ddf_dev_ops_t sb_pcm_ops = {
49 .interfaces[AUDIO_PCM_BUFFER_IFACE] = &sb_pcm_iface,
50};
51
52/*
53 * ISA interrupts should be edge-triggered so there should be no need for
54 * irq code magic, but we still need to ack those interrupts ASAP.
55 */
56static const irq_cmd_t irq_cmds[] = {
57 { .cmd = CMD_PIO_READ_8, .dstarg = 1 }, /* Address patched at runtime */
58 { .cmd = CMD_PIO_READ_8, .dstarg = 1 }, /* Address patched at runtime */
59 { .cmd = CMD_ACCEPT },
60};
61
62static inline sb_mixer_type_t sb_mixer_type_by_dsp_version(
63 unsigned major, unsigned minor)
64{
65 switch (major) {
66 case 1:
67 return SB_MIXER_NONE; /* SB 1.5 and early 2.0 = no mixer chip */
68 case 2:
69 return (minor == 0) ? SB_MIXER_NONE : SB_MIXER_CT1335;
70 case 3:
71 return SB_MIXER_CT1345; /* SB Pro */
72 case 4:
73 return SB_MIXER_CT1745; /* SB 16 */
74 default:
75 return SB_MIXER_UNKNOWN;
76 }
77}
78
79size_t sb16_irq_code_size(void)
80{
81 return ARRAY_SIZE(irq_cmds);
82}
83
84void sb16_irq_code(addr_range_t *regs, int dma8, int dma16, irq_cmd_t cmds[],
85 irq_pio_range_t ranges[])
86{
87 assert(regs);
88 assert(dma8 > 0 && dma8 < 4);
89
90 sb16_regs_t *registers = RNGABSPTR(*regs);
91 memcpy(cmds, irq_cmds, sizeof(irq_cmds));
92 cmds[0].addr = (void *) &registers->dsp_read_status;
93 ranges[0].base = (uintptr_t) registers;
94 ranges[0].size = sizeof(*registers);
95 if (dma16 > 4 && dma16 < 8) {
96 /* Valid dma16 */
97 cmds[1].addr = (void *) &registers->dma16_ack;
98 } else {
99 cmds[1].cmd = CMD_ACCEPT;
100 }
101}
102
103errno_t sb16_init_sb16(sb16_t *sb, addr_range_t *regs, ddf_dev_t *dev, int dma8,
104 int dma16)
105{
106 assert(sb);
107
108 /* Setup registers */
109 errno_t ret = pio_enable_range(regs, (void **) &sb->regs);
110 if (ret != EOK)
111 return ret;
112 ddf_log_note("PIO registers at %p accessible.", sb->regs);
113
114 /* Initialize DSP */
115 ddf_fun_t *dsp_fun = ddf_fun_create(dev, fun_exposed, "pcm");
116 if (!dsp_fun) {
117 ddf_log_error("Failed to create dsp function.");
118 return ENOMEM;
119 }
120
121 ret = sb_dsp_init(&sb->dsp, sb->regs, dev, dma8, dma16);
122 if (ret != EOK) {
123 ddf_log_error("Failed to initialize SB DSP: %s.",
124 str_error(ret));
125 ddf_fun_destroy(dsp_fun);
126 return ret;
127 }
128
129 ddf_fun_set_ops(dsp_fun, &sb_pcm_ops);
130 ddf_log_note("Sound blaster DSP (%x.%x) initialized.",
131 sb->dsp.version.major, sb->dsp.version.minor);
132
133 ret = ddf_fun_bind(dsp_fun);
134 if (ret != EOK) {
135 ddf_log_error(
136 "Failed to bind PCM function: %s.", str_error(ret));
137 ddf_fun_destroy(dsp_fun);
138 return ret;
139 }
140
141 ret = ddf_fun_add_to_category(dsp_fun, "audio-pcm");
142 if (ret != EOK) {
143 ddf_log_error("Failed register PCM function in category: %s.",
144 str_error(ret));
145 ddf_fun_unbind(dsp_fun);
146 ddf_fun_destroy(dsp_fun);
147 return ret;
148 }
149
150 /* Initialize mixer */
151 const sb_mixer_type_t mixer_type = sb_mixer_type_by_dsp_version(
152 sb->dsp.version.major, sb->dsp.version.minor);
153
154 ddf_fun_t *mixer_fun = ddf_fun_create(dev, fun_exposed, "control");
155 if (!mixer_fun) {
156 ddf_log_error("Failed to create mixer function.");
157 ddf_fun_unbind(dsp_fun);
158 ddf_fun_destroy(dsp_fun);
159 return ENOMEM;
160 }
161 ret = sb_mixer_init(&sb->mixer, sb->regs, mixer_type);
162 if (ret != EOK) {
163 ddf_log_error("Failed to initialize SB mixer: %s.",
164 str_error(ret));
165 ddf_fun_unbind(dsp_fun);
166 ddf_fun_destroy(dsp_fun);
167 ddf_fun_destroy(mixer_fun);
168 return ret;
169 }
170
171 ddf_log_note("Initialized mixer: %s.",
172 sb_mixer_type_str(sb->mixer.type));
173 ddf_fun_set_ops(mixer_fun, &sb_mixer_ops);
174
175 ret = ddf_fun_bind(mixer_fun);
176 if (ret != EOK) {
177 ddf_log_error(
178 "Failed to bind mixer function: %s.", str_error(ret));
179 ddf_fun_destroy(mixer_fun);
180 ddf_fun_unbind(dsp_fun);
181 ddf_fun_destroy(dsp_fun);
182 return ret;
183 }
184
185 return EOK;
186}
187
188errno_t sb16_init_mpu(sb16_t *sb, addr_range_t *regs)
189{
190 sb->mpu_regs = NULL;
191 return ENOTSUP;
192}
193
194errno_t sb16_quiesce(sb16_t *sb)
195{
196 sb_dsp_quiesce(&sb->dsp);
197 return EOK;
198}
199
200void sb16_interrupt(sb16_t *sb)
201{
202 assert(sb);
203 /*
204 * The acknowledgment of interrupts on DSP version 4.xx is different;
205 * It can contain MPU-401 indicator and DMA16 transfers are acked
206 * differently
207 */
208 if (sb->dsp.version.major >= 4) {
209 pio_write_8(&sb->regs->mixer_address, MIXER_IRQ_STATUS_ADDRESS);
210 const uint8_t irq_mask = pio_read_8(&sb->regs->mixer_data);
211 /* Third bit is MPU-401 interrupt */
212 if (irq_mask & 0x4) {
213 return;
214 }
215 } else {
216 ddf_log_debug("SB16 interrupt.");
217 }
218 sb_dsp_interrupt(&sb->dsp);
219}
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