Commit | Line | Data |
---|---|---|
719f82d3 | 1 | /***********************************************************************/ |
95a4c6e7 | 2 | /** |
719f82d3 EB |
3 | |
4 | AudioScience HPI driver | |
95a4c6e7 | 5 | Copyright (C) 1997-2011 AudioScience Inc. <support@audioscience.com> |
719f82d3 EB |
6 | |
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of version 2 of the GNU General Public License as | |
9 | published by the Free Software Foundation; | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | ||
20 | \file | |
95a4c6e7 | 21 | Functions for reading DSP code using |
719f82d3 | 22 | hotplug firmware loader from individual dsp code files |
95a4c6e7 | 23 | */ |
719f82d3 EB |
24 | /***********************************************************************/ |
25 | #define SOURCEFILE_NAME "hpidspcd.c" | |
26 | #include "hpidspcd.h" | |
27 | #include "hpidebug.h" | |
f6baaec2 | 28 | #include "hpi_version.h" |
719f82d3 | 29 | |
95a4c6e7 EB |
30 | struct dsp_code_private { |
31 | /** Firmware descriptor */ | |
32 | const struct firmware *firmware; | |
33 | struct pci_dev *dev; | |
719f82d3 EB |
34 | }; |
35 | ||
719f82d3 | 36 | /*-------------------------------------------------------------------*/ |
95a4c6e7 EB |
37 | short hpi_dsp_code_open(u32 adapter, void *os_data, struct dsp_code *dsp_code, |
38 | u32 *os_error_code) | |
719f82d3 | 39 | { |
95a4c6e7 EB |
40 | const struct firmware *firmware; |
41 | struct pci_dev *dev = os_data; | |
719f82d3 EB |
42 | struct code_header header; |
43 | char fw_name[20]; | |
dc889f18 | 44 | short err_ret = HPI_ERROR_DSP_FILE_NOT_FOUND; |
719f82d3 EB |
45 | int err; |
46 | ||
47 | sprintf(fw_name, "asihpi/dsp%04x.bin", adapter); | |
719f82d3 | 48 | |
95a4c6e7 | 49 | err = request_firmware(&firmware, fw_name, &dev->dev); |
5ed15daf | 50 | |
95a4c6e7 | 51 | if (err || !firmware) { |
4ee3bffc JP |
52 | dev_err(&dev->dev, "%d, request_firmware failed for %s\n", |
53 | err, fw_name); | |
719f82d3 EB |
54 | goto error1; |
55 | } | |
95a4c6e7 | 56 | if (firmware->size < sizeof(header)) { |
4ee3bffc | 57 | dev_err(&dev->dev, "Header size too small %s\n", fw_name); |
719f82d3 EB |
58 | goto error2; |
59 | } | |
95a4c6e7 EB |
60 | memcpy(&header, firmware->data, sizeof(header)); |
61 | ||
62 | if ((header.type != 0x45444F43) || /* "CODE" */ | |
63 | (header.adapter != adapter) | |
64 | || (header.size != firmware->size)) { | |
4ee3bffc | 65 | dev_err(&dev->dev, |
f6baaec2 EB |
66 | "Invalid firmware header size %d != file %zd\n", |
67 | header.size, firmware->size); | |
719f82d3 EB |
68 | goto error2; |
69 | } | |
70 | ||
f6baaec2 EB |
71 | if ((header.version >> 9) != (HPI_VER >> 9)) { |
72 | /* Consider even and subsequent odd minor versions to be compatible */ | |
4ee3bffc JP |
73 | dev_err(&dev->dev, "Incompatible firmware version DSP image %X != Driver %X\n", |
74 | header.version, HPI_VER); | |
719f82d3 EB |
75 | goto error2; |
76 | } | |
77 | ||
f6baaec2 | 78 | if (header.version != HPI_VER) { |
4ee3bffc JP |
79 | dev_info(&dev->dev, |
80 | "Firmware: release version mismatch DSP image %X != Driver %X\n", | |
81 | header.version, HPI_VER); | |
719f82d3 EB |
82 | } |
83 | ||
5ed15daf | 84 | HPI_DEBUG_LOG(DEBUG, "dsp code %s opened\n", fw_name); |
95a4c6e7 | 85 | dsp_code->pvt = kmalloc(sizeof(*dsp_code->pvt), GFP_KERNEL); |
dc889f18 JJ |
86 | if (!dsp_code->pvt) { |
87 | err_ret = HPI_ERROR_MEMORY_ALLOC; | |
88 | goto error2; | |
89 | } | |
95a4c6e7 EB |
90 | |
91 | dsp_code->pvt->dev = dev; | |
92 | dsp_code->pvt->firmware = firmware; | |
93 | dsp_code->header = header; | |
94 | dsp_code->block_length = header.size / sizeof(u32); | |
95 | dsp_code->word_count = sizeof(header) / sizeof(u32); | |
719f82d3 EB |
96 | return 0; |
97 | ||
98 | error2: | |
95a4c6e7 | 99 | release_firmware(firmware); |
719f82d3 | 100 | error1: |
95a4c6e7 | 101 | dsp_code->block_length = 0; |
dc889f18 | 102 | return err_ret; |
719f82d3 EB |
103 | } |
104 | ||
105 | /*-------------------------------------------------------------------*/ | |
95a4c6e7 | 106 | void hpi_dsp_code_close(struct dsp_code *dsp_code) |
719f82d3 | 107 | { |
50d5f773 EB |
108 | HPI_DEBUG_LOG(DEBUG, "dsp code closed\n"); |
109 | release_firmware(dsp_code->pvt->firmware); | |
95a4c6e7 | 110 | kfree(dsp_code->pvt); |
719f82d3 EB |
111 | } |
112 | ||
113 | /*-------------------------------------------------------------------*/ | |
95a4c6e7 | 114 | void hpi_dsp_code_rewind(struct dsp_code *dsp_code) |
719f82d3 EB |
115 | { |
116 | /* Go back to start of data, after header */ | |
95a4c6e7 | 117 | dsp_code->word_count = sizeof(struct code_header) / sizeof(u32); |
719f82d3 EB |
118 | } |
119 | ||
120 | /*-------------------------------------------------------------------*/ | |
95a4c6e7 | 121 | short hpi_dsp_code_read_word(struct dsp_code *dsp_code, u32 *pword) |
719f82d3 | 122 | { |
95a4c6e7 | 123 | if (dsp_code->word_count + 1 > dsp_code->block_length) |
5ed15daf | 124 | return HPI_ERROR_DSP_FILE_FORMAT; |
719f82d3 | 125 | |
95a4c6e7 | 126 | *pword = ((u32 *)(dsp_code->pvt->firmware->data))[dsp_code-> |
719f82d3 | 127 | word_count]; |
95a4c6e7 | 128 | dsp_code->word_count++; |
719f82d3 EB |
129 | return 0; |
130 | } | |
131 | ||
132 | /*-------------------------------------------------------------------*/ | |
133 | short hpi_dsp_code_read_block(size_t words_requested, | |
95a4c6e7 | 134 | struct dsp_code *dsp_code, u32 **ppblock) |
719f82d3 | 135 | { |
95a4c6e7 | 136 | if (dsp_code->word_count + words_requested > dsp_code->block_length) |
719f82d3 EB |
137 | return HPI_ERROR_DSP_FILE_FORMAT; |
138 | ||
139 | *ppblock = | |
95a4c6e7 EB |
140 | ((u32 *)(dsp_code->pvt->firmware->data)) + |
141 | dsp_code->word_count; | |
142 | dsp_code->word_count += words_requested; | |
719f82d3 EB |
143 | return 0; |
144 | } |