source: mainline/uspace/drv/audio/sb16/main.c@ ac07a13

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since ac07a13 was 413225d, checked in by Jan Vesely <jano.vesely@…>, 14 years ago

sb16: Ack interrupts in irq pseudocode.
  • Property mode set to 100644
File size: 7.9 KB
Line 
1/*
2 * Copyright (c) 2011 Jan Vesely
3 * Copyright (c) 2011 Vojtech Horky
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/** @addtogroup drvaudiosb16
30 * @{
31 */
32/** @file
33 * Main routines of Creative Labs SoundBlaster 16 driver
34 */
35#include <ddf/driver.h>
36#include <ddf/interrupt.h>
37#include <ddf/log.h>
38#include <device/hw_res.h>
39#include <devman.h>
40#include <assert.h>
41#include <stdio.h>
42#include <errno.h>
43#include <str_error.h>
44
45#include "ddf_log.h"
46#include "sb16.h"
47
48#define NAME "sb16"
49
50static int sb_add_device(ddf_dev_t *device);
51static int sb_get_res(const ddf_dev_t *device, uintptr_t *sb_regs,
52 size_t *sb_regs_size, uintptr_t *mpu_regs, size_t *mpu_regs_size,
53 int *irq, int *dma8, int *dma16);
54static int sb_enable_interrupts(ddf_dev_t *device);
55/*----------------------------------------------------------------------------*/
56static driver_ops_t sb_driver_ops = {
57 .add_device = sb_add_device,
58};
59/*----------------------------------------------------------------------------*/
60static driver_t sb_driver = {
61 .name = NAME,
62 .driver_ops = &sb_driver_ops
63};
64//static ddf_dev_ops_t sb_ops = {};
65/*----------------------------------------------------------------------------*/
66/** Initializes global driver structures (NONE).
67 *
68 * @param[in] argc Nmber of arguments in argv vector (ignored).
69 * @param[in] argv Cmdline argument vector (ignored).
70 * @return Error code.
71 *
72 * Driver debug level is set here.
73 */
74int main(int argc, char *argv[])
75{
76 printf(NAME": HelenOS SB16 audio driver.\n");
77 ddf_log_init(NAME, LVL_DEBUG2);
78 return ddf_driver_main(&sb_driver);
79}
80/*----------------------------------------------------------------------------*/
81static void irq_handler(ddf_dev_t *dev, ipc_callid_t iid, ipc_call_t *call)
82{
83 assert(dev);
84 assert(dev->driver_data);
85 sb16_interrupt(dev->driver_data);
86}
87/*----------------------------------------------------------------------------*/
88/** Initializes a new ddf driver instance of SB16.
89 *
90 * @param[in] device DDF instance of the device to initialize.
91 * @return Error code.
92 */
93static int sb_add_device(ddf_dev_t *device)
94{
95#define CHECK_RET_RETURN(ret, msg...) \
96if (ret != EOK) { \
97 ddf_log_error(msg); \
98 return ret; \
99} else (void)0
100
101 assert(device);
102
103 sb16_t *soft_state = ddf_dev_data_alloc(device, sizeof(sb16_t));
104 int ret = soft_state ? EOK : ENOMEM;
105 CHECK_RET_RETURN(ret, "Failed to allocate sb16 structure.\n");
106
107 uintptr_t sb_regs = 0, mpu_regs = 0;
108 size_t sb_regs_size = 0, mpu_regs_size = 0;
109 int irq = 0, dma8 = 0, dma16 = 0;
110
111 ret = sb_get_res(device, &sb_regs, &sb_regs_size, &mpu_regs,
112 &mpu_regs_size, &irq, &dma8, &dma16);
113 CHECK_RET_RETURN(ret,
114 "Failed to get resources: %s.\n", str_error(ret));
115
116 const size_t irq_cmd_count = sb16_irq_code_size();
117 irq_cmd_t irq_cmds[irq_cmd_count];
118 sb16_irq_code((void*)sb_regs, dma8, dma16, irq_cmds);
119 irq_code_t irq_code = { .cmdcount = irq_cmd_count, .cmds = irq_cmds };
120
121 ret = register_interrupt_handler(device, irq, irq_handler, &irq_code);
122 CHECK_RET_RETURN(ret,
123 "Failed to register irq handler: %s.\n", str_error(ret));
124
125
126 ddf_fun_t *dsp_fun = NULL;
127#define CHECK_RET_UNREG_DEST_RETURN(ret, msg...) \
128if (ret != EOK) { \
129 ddf_log_error(msg); \
130 if (dsp_fun) \
131 ddf_fun_destroy(dsp_fun); \
132 unregister_interrupt_handler(device, irq); \
133 return ret; \
134} else (void)0
135
136 ret = sb_enable_interrupts(device);
137 CHECK_RET_UNREG_DEST_RETURN(ret, "Failed to enable interrupts: %s.\n",
138 str_error(ret));
139
140 dsp_fun = ddf_fun_create(device, fun_exposed, "dsp");
141 ret = dsp_fun ? EOK : ENOMEM;
142 CHECK_RET_UNREG_DEST_RETURN(ret, "Failed to create dsp function.");
143
144 ret = sb16_init_sb16(
145 soft_state, (void*)sb_regs, sb_regs_size, device, dma8, dma16);
146 CHECK_RET_UNREG_DEST_RETURN(ret,
147 "Failed to init sb16 driver: %s.\n", str_error(ret));
148
149 ret = ddf_fun_bind(dsp_fun);
150 CHECK_RET_UNREG_DEST_RETURN(ret,
151 "Failed to bind dsp function: %s.\n", str_error(ret));
152
153 /* Everything's OK assign driver_data. */
154 dsp_fun->driver_data = soft_state;
155
156 ret = sb16_init_mpu(soft_state, (void*)mpu_regs, mpu_regs_size);
157 if (ret == EOK) {
158 ddf_fun_t *mpu_fun =
159 ddf_fun_create(device, fun_exposed, "midi");
160 if (mpu_fun) {
161 ret = ddf_fun_bind(mpu_fun);
162 if (ret != EOK)
163 ddf_log_error(
164 "Failed to bind midi function: %s.\n",
165 str_error(ret));
166 } else {
167 ddf_log_error("Failed to create midi function.\n");
168 }
169 } else {
170 ddf_log_warning("Failed to init mpu driver: %s.\n", str_error(ret));
171 }
172
173 /* MPU state does not matter */
174 return EOK;
175}
176/*----------------------------------------------------------------------------*/
177static int sb_get_res(const ddf_dev_t *device, uintptr_t *sb_regs,
178 size_t *sb_regs_size, uintptr_t *mpu_regs, size_t *mpu_regs_size,
179 int *irq, int *dma8, int *dma16)
180{
181 assert(device);
182 assert(sb_regs);
183 assert(sb_regs_size);
184 assert(mpu_regs);
185 assert(mpu_regs_size);
186 assert(irq);
187 assert(dma8);
188 assert(dma16);
189
190 async_sess_t *parent_sess =
191 devman_parent_device_connect(EXCHANGE_SERIALIZE, device->handle,
192 IPC_FLAG_BLOCKING);
193 if (!parent_sess)
194 return ENOMEM;
195
196 hw_resource_list_t hw_resources;
197 const int rc = hw_res_get_resource_list(parent_sess, &hw_resources);
198 if (rc != EOK) {
199 async_hangup(parent_sess);
200 return rc;
201 }
202
203 size_t i;
204 for (i = 0; i < hw_resources.count; i++) {
205 const hw_resource_t *res = &hw_resources.resources[i];
206 switch (res->type) {
207 case INTERRUPT:
208 *irq = res->res.interrupt.irq;
209 ddf_log_debug("Found interrupt: %d.\n", *irq);
210 break;
211 case IO_RANGE:
212 ddf_log_debug("Found io: %" PRIx64" %zu.\n",
213 res->res.io_range.address, res->res.io_range.size);
214 if (res->res.io_range.size >= sizeof(sb16_regs_t)) {
215 *sb_regs = res->res.io_range.address;
216 *sb_regs_size = res->res.io_range.size;
217 } else {
218 *mpu_regs = res->res.io_range.address;
219 *mpu_regs_size = res->res.io_range.size;
220 }
221 break;
222 case DMA_CHANNEL_16:
223 *dma16 = res->res.dma_channel.dma16;
224 ddf_log_debug("Found DMA16 channel: %d.\n", *dma16);
225 break;
226 case DMA_CHANNEL_8:
227 *dma8 = res->res.dma_channel.dma8;
228 ddf_log_debug("Found DMA8 channel: %d.\n", *dma8);
229 default:
230 break;
231 }
232 }
233
234 async_hangup(parent_sess);
235 free(hw_resources.resources);
236 return EOK;
237}
238/*----------------------------------------------------------------------------*/
239int sb_enable_interrupts(ddf_dev_t *device)
240{
241 async_sess_t *parent_sess =
242 devman_parent_device_connect(EXCHANGE_SERIALIZE, device->handle,
243 IPC_FLAG_BLOCKING);
244 if (!parent_sess)
245 return ENOMEM;
246
247 bool enabled = hw_res_enable_interrupt(parent_sess);
248 async_hangup(parent_sess);
249
250 return enabled ? EOK : EIO;
251}
252/**
253 * @}
254 */
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