1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
/***********************************************************************/
/**
AudioScience HPI driver
Copyright (C) 1997-2011 AudioScience Inc. <support@audioscience.com>
This program is free software; you can redistribute it and/or modify
it under the terms of version 2 of the GNU General Public License as
published by the Free Software Foundation;
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
\file
Functions for reading DSP code using
hotplug firmware loader from individual dsp code files
*/
/***********************************************************************/
#define SOURCEFILE_NAME "hpidspcd.c"
#include "hpidspcd.h"
#include "hpidebug.h"
struct dsp_code_private {
/** Firmware descriptor */
const struct firmware *firmware;
struct pci_dev *dev;
};
#define HPI_VER_DECIMAL ((int)(HPI_VER_MAJOR(HPI_VER) * 10000 + \
HPI_VER_MINOR(HPI_VER) * 100 + HPI_VER_RELEASE(HPI_VER)))
/*-------------------------------------------------------------------*/
short hpi_dsp_code_open(u32 adapter, void *os_data, struct dsp_code *dsp_code,
u32 *os_error_code)
{
const struct firmware *firmware;
struct pci_dev *dev = os_data;
struct code_header header;
char fw_name[20];
short err_ret = HPI_ERROR_DSP_FILE_NOT_FOUND;
int err;
sprintf(fw_name, "asihpi/dsp%04x.bin", adapter);
err = request_firmware(&firmware, fw_name, &dev->dev);
if (err || !firmware) {
dev_printk(KERN_ERR, &dev->dev,
"%d, request_firmware failed for %s\n", err,
fw_name);
goto error1;
}
if (firmware->size < sizeof(header)) {
dev_printk(KERN_ERR, &dev->dev, "Header size too small %s\n",
fw_name);
goto error2;
}
memcpy(&header, firmware->data, sizeof(header));
if ((header.type != 0x45444F43) || /* "CODE" */
(header.adapter != adapter)
|| (header.size != firmware->size)) {
dev_printk(KERN_ERR, &dev->dev, "Invalid firmware file\n");
goto error2;
}
if ((header.version / 100 & ~1) != (HPI_VER_DECIMAL / 100 & ~1)) {
dev_printk(KERN_ERR, &dev->dev,
"Incompatible firmware version "
"DSP image %d != Driver %d\n", header.version,
HPI_VER_DECIMAL);
goto error2;
}
if (header.version != HPI_VER_DECIMAL) {
dev_printk(KERN_WARNING, &dev->dev,
"Firmware: release version mismatch DSP image %d != Driver %d\n",
header.version, HPI_VER_DECIMAL);
}
HPI_DEBUG_LOG(DEBUG, "dsp code %s opened\n", fw_name);
dsp_code->pvt = kmalloc(sizeof(*dsp_code->pvt), GFP_KERNEL);
if (!dsp_code->pvt) {
err_ret = HPI_ERROR_MEMORY_ALLOC;
goto error2;
}
dsp_code->pvt->dev = dev;
dsp_code->pvt->firmware = firmware;
dsp_code->header = header;
dsp_code->block_length = header.size / sizeof(u32);
dsp_code->word_count = sizeof(header) / sizeof(u32);
return 0;
error2:
release_firmware(firmware);
error1:
dsp_code->block_length = 0;
return err_ret;
}
/*-------------------------------------------------------------------*/
void hpi_dsp_code_close(struct dsp_code *dsp_code)
{
if (dsp_code->pvt->firmware) {
HPI_DEBUG_LOG(DEBUG, "dsp code closed\n");
release_firmware(dsp_code->pvt->firmware);
dsp_code->pvt->firmware = NULL;
}
kfree(dsp_code->pvt);
}
/*-------------------------------------------------------------------*/
void hpi_dsp_code_rewind(struct dsp_code *dsp_code)
{
/* Go back to start of data, after header */
dsp_code->word_count = sizeof(struct code_header) / sizeof(u32);
}
/*-------------------------------------------------------------------*/
short hpi_dsp_code_read_word(struct dsp_code *dsp_code, u32 *pword)
{
if (dsp_code->word_count + 1 > dsp_code->block_length)
return HPI_ERROR_DSP_FILE_FORMAT;
*pword = ((u32 *)(dsp_code->pvt->firmware->data))[dsp_code->
word_count];
dsp_code->word_count++;
return 0;
}
/*-------------------------------------------------------------------*/
short hpi_dsp_code_read_block(size_t words_requested,
struct dsp_code *dsp_code, u32 **ppblock)
{
if (dsp_code->word_count + words_requested > dsp_code->block_length)
return HPI_ERROR_DSP_FILE_FORMAT;
*ppblock =
((u32 *)(dsp_code->pvt->firmware->data)) +
dsp_code->word_count;
dsp_code->word_count += words_requested;
return 0;
}
|
