6b13f685e
 김민수
BSP 최초 추가
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#define SOURCEFILE_NAME "hpidspcd.c"
#include "hpidspcd.h"
#include "hpidebug.h"
#include "hpi_version.h"
struct dsp_code_private {
const struct firmware *firmware;
struct pci_dev *dev;
};
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_err(&dev->dev, "%d, request_firmware failed for %s
",
err, fw_name);
goto error1;
}
if (firmware->size < sizeof(header)) {
dev_err(&dev->dev, "Header size too small %s
", fw_name);
goto error2;
}
memcpy(&header, firmware->data, sizeof(header));
if ((header.type != 0x45444F43) ||
(header.adapter != adapter)
|| (header.size != firmware->size)) {
dev_err(&dev->dev,
"Invalid firmware header size %d != file %zd
",
header.size, firmware->size);
goto error2;
}
if ((header.version >> 9) != (HPI_VER >> 9)) {
dev_err(&dev->dev, "Incompatible firmware version DSP image %X != Driver %X
",
header.version, HPI_VER);
goto error2;
}
if (header.version != HPI_VER) {
dev_info(&dev->dev,
"Firmware: release version mismatch DSP image %X != Driver %X
",
header.version, HPI_VER);
}
HPI_DEBUG_LOG(DEBUG, "dsp code %s opened
", 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)
{
HPI_DEBUG_LOG(DEBUG, "dsp code closed
");
release_firmware(dsp_code->pvt->firmware);
kfree(dsp_code->pvt);
}
void hpi_dsp_code_rewind(struct dsp_code *dsp_code)
{
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;
}
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