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ymfpci: treat firmware data as const 

Standardise both in-kernel and loaded firmware to be stored as
little-endian instead of host-endian.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
This commit is contained in:
David Woodhouse 2008-05-29 14:40:00 +03:00 committed by David Woodhouse
parent fa6e1cb66e
commit b82a82d0a9
1 changed files with 34 additions and 25 deletions
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59
sound/pci/ymfpci/ymfpci_main.c
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@ -26,6 +26,7 @@
#include <linux/sched.h> #include <linux/sched.h>
#include <linux/slab.h> #include <linux/slab.h>
#include <linux/vmalloc.h> #include <linux/vmalloc.h>
#include <linux/mutex.h>
#include <sound/core.h> #include <sound/core.h>
#include <sound/control.h> #include <sound/control.h>
@ -2009,11 +2010,34 @@ static struct firmware snd_ymfpci_controller_1e_microcode = {
.size = YDSXG_CTRLLENGTH, .size = YDSXG_CTRLLENGTH,
.data = (u8 *)CntrlInst1E, .data = (u8 *)CntrlInst1E,
}; };
#ifdef __BIG_ENDIAN
static int microcode_swapped;
static DEFINE_MUTEX(microcode_swap);
static void snd_ymfpci_convert_to_le(const struct firmware *fw)
{
int i;
u32 *data = (u32 *)fw->data;
for (i = 0; i < fw->size / 4; ++i)
cpu_to_le32s(&data[i]);
}
#endif #endif
#ifdef CONFIG_SND_YMFPCI_FIRMWARE_IN_KERNEL
static int snd_ymfpci_request_firmware(struct snd_ymfpci *chip) static int snd_ymfpci_request_firmware(struct snd_ymfpci *chip)
{ {
#ifdef __BIG_ENDIAN
mutex_lock(&microcode_swap);
if (!microcode_swapped) {
snd_ymfpci_convert_to_le(&snd_ymfpci_dsp_microcode);
snd_ymfpci_convert_to_le(&snd_ymfpci_controller_1e_microcode);
snd_ymfpci_convert_to_le(&snd_ymfpci_controller_microcode);
microcode_swapped = 1;
}
mutex_unlock(&microcode_swap);
#endif
chip->dsp_microcode = &snd_ymfpci_dsp_microcode; chip->dsp_microcode = &snd_ymfpci_dsp_microcode;
if (chip->device_id == PCI_DEVICE_ID_YAMAHA_724F || if (chip->device_id == PCI_DEVICE_ID_YAMAHA_724F ||
chip->device_id == PCI_DEVICE_ID_YAMAHA_740C || chip->device_id == PCI_DEVICE_ID_YAMAHA_740C ||
@ -2029,19 +2053,6 @@ static int snd_ymfpci_request_firmware(struct snd_ymfpci *chip)
#else /* use fw_loader */ #else /* use fw_loader */
#ifdef __LITTLE_ENDIAN
static inline void snd_ymfpci_convert_from_le(const struct firmware *fw) { }
#else
static void snd_ymfpci_convert_from_le(const struct firmware *fw)
{
int i;
u32 *data = (u32 *)fw->data;
for (i = 0; i < fw->size / 4; ++i)
le32_to_cpus(&data[i]);
}
#endif
static int snd_ymfpci_request_firmware(struct snd_ymfpci *chip) static int snd_ymfpci_request_firmware(struct snd_ymfpci *chip)
{ {
int err, is_1e; int err, is_1e;
@ -2050,9 +2061,7 @@ static int snd_ymfpci_request_firmware(struct snd_ymfpci *chip)
err = request_firmware(&chip->dsp_microcode, "yamaha/ds1_dsp.fw", err = request_firmware(&chip->dsp_microcode, "yamaha/ds1_dsp.fw",
&chip->pci->dev); &chip->pci->dev);
if (err >= 0) { if (err >= 0) {
if (chip->dsp_microcode->size == YDSXG_DSPLENGTH) if (chip->dsp_microcode->size != YDSXG_DSPLENGTH) {
snd_ymfpci_convert_from_le(chip->dsp_microcode);
else {
snd_printk(KERN_ERR "DSP microcode has wrong size\n"); snd_printk(KERN_ERR "DSP microcode has wrong size\n");
err = -EINVAL; err = -EINVAL;
} }
@ -2067,9 +2076,7 @@ static int snd_ymfpci_request_firmware(struct snd_ymfpci *chip)
err = request_firmware(&chip->controller_microcode, name, err = request_firmware(&chip->controller_microcode, name,
&chip->pci->dev); &chip->pci->dev);
if (err >= 0) { if (err >= 0) {
if (chip->controller_microcode->size == YDSXG_CTRLLENGTH) if (chip->controller_microcode->size != YDSXG_CTRLLENGTH) {
snd_ymfpci_convert_from_le(chip->controller_microcode);
else {
snd_printk(KERN_ERR "controller microcode" snd_printk(KERN_ERR "controller microcode"
" has wrong size\n"); " has wrong size\n");
err = -EINVAL; err = -EINVAL;
@ -2090,7 +2097,7 @@ static void snd_ymfpci_download_image(struct snd_ymfpci *chip)
{ {
int i; int i;
u16 ctrl; u16 ctrl;
u32 *inst; const __le32 *inst;
snd_ymfpci_writel(chip, YDSXGR_NATIVEDACOUTVOL, 0x00000000); snd_ymfpci_writel(chip, YDSXGR_NATIVEDACOUTVOL, 0x00000000);
snd_ymfpci_disable_dsp(chip); snd_ymfpci_disable_dsp(chip);
@ -2105,14 +2112,16 @@ static void snd_ymfpci_download_image(struct snd_ymfpci *chip)
snd_ymfpci_writew(chip, YDSXGR_GLOBALCTRL, ctrl & ~0x0007); snd_ymfpci_writew(chip, YDSXGR_GLOBALCTRL, ctrl & ~0x0007);
/* setup DSP instruction code */ /* setup DSP instruction code */
inst = (u32 *)chip->dsp_microcode->data; inst = (const __le32 *)chip->dsp_microcode->data;
for (i = 0; i < YDSXG_DSPLENGTH / 4; i++) for (i = 0; i < YDSXG_DSPLENGTH / 4; i++)
snd_ymfpci_writel(chip, YDSXGR_DSPINSTRAM + (i << 2), inst[i]); snd_ymfpci_writel(chip, YDSXGR_DSPINSTRAM + (i << 2),
le32_to_cpu(inst[i]));
/* setup control instruction code */ /* setup control instruction code */
inst = (u32 *)chip->controller_microcode->data; inst = (const __le32 *)chip->controller_microcode->data;
for (i = 0; i < YDSXG_CTRLLENGTH / 4; i++) for (i = 0; i < YDSXG_CTRLLENGTH / 4; i++)
snd_ymfpci_writel(chip, YDSXGR_CTRLINSTRAM + (i << 2), inst[i]); snd_ymfpci_writel(chip, YDSXGR_CTRLINSTRAM + (i << 2),
le32_to_cpu(inst[i]));
snd_ymfpci_enable_dsp(chip); snd_ymfpci_enable_dsp(chip);
} }