ALSA: hdsp: improve firmware caching
As the recent firmware code tries to reread and cache the firmware by
itself, it's even better to keep the struct firmware data instead of
keeping a local copy. Also, it makes little sense to disable the fw
loader for this driver, so added the explicit dependency, too.
Last, but not least, allocate the firmware data loaded via ioctl in
vmalloc'ed buffer instead, as the firmware size isn't that small.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/rme9652/hdsp.c b/sound/pci/rme9652/hdsp.c
index 0d6930c..b8ddbb1 100644
--- a/sound/pci/rme9652/hdsp.c
+++ b/sound/pci/rme9652/hdsp.c
@@ -59,13 +59,11 @@
MODULE_SUPPORTED_DEVICE("{{RME Hammerfall-DSP},"
"{RME HDSP-9652},"
"{RME HDSP-9632}}");
-#ifdef HDSP_FW_LOADER
MODULE_FIRMWARE("rpm_firmware.bin");
MODULE_FIRMWARE("multiface_firmware.bin");
MODULE_FIRMWARE("multiface_firmware_rev11.bin");
MODULE_FIRMWARE("digiface_firmware.bin");
MODULE_FIRMWARE("digiface_firmware_rev11.bin");
-#endif
#define HDSP_MAX_CHANNELS 26
#define HDSP_MAX_DS_CHANNELS 14
@@ -423,12 +421,7 @@
#define HDSP_DMA_AREA_BYTES ((HDSP_MAX_CHANNELS+1) * HDSP_CHANNEL_BUFFER_BYTES)
#define HDSP_DMA_AREA_KILOBYTES (HDSP_DMA_AREA_BYTES/1024)
-/* use hotplug firmware loader? */
-#if defined(CONFIG_FW_LOADER) || defined(CONFIG_FW_LOADER_MODULE)
-#if !defined(HDSP_USE_HWDEP_LOADER)
-#define HDSP_FW_LOADER
-#endif
-#endif
+#define HDSP_FIRMWARE_SIZE (24413 * 4)
struct hdsp_9632_meters {
u32 input_peak[16];
@@ -475,7 +468,8 @@
enum HDSP_IO_Type io_type; /* ditto, but for code use */
unsigned short firmware_rev;
unsigned short state; /* stores state bits */
- u32 firmware_cache[24413]; /* this helps recover from accidental iobox power failure */
+ const struct firmware *firmware;
+ u32 *fw_uploaded;
size_t period_bytes; /* guess what this is */
unsigned char max_channels;
unsigned char qs_in_channels; /* quad speed mode for H9632 */
@@ -712,6 +706,17 @@
int i;
unsigned long flags;
+ const u32 *cache;
+
+ if (hdsp->fw_uploaded)
+ cache = hdsp->fw_uploaded;
+ else {
+ if (!hdsp->firmware)
+ return -ENODEV;
+ cache = (u32 *)hdsp->firmware->data;
+ if (!cache)
+ return -ENODEV;
+ }
if ((hdsp_read (hdsp, HDSP_statusRegister) & HDSP_DllError) != 0) {
@@ -727,8 +732,8 @@
hdsp_write (hdsp, HDSP_control2Reg, HDSP_S_LOAD);
- for (i = 0; i < 24413; ++i) {
- hdsp_write(hdsp, HDSP_fifoData, hdsp->firmware_cache[i]);
+ for (i = 0; i < HDSP_FIRMWARE_SIZE / 4; ++i) {
+ hdsp_write(hdsp, HDSP_fifoData, cache[i]);
if (hdsp_fifo_wait (hdsp, 127, HDSP_LONG_WAIT)) {
snd_printk ("Hammerfall-DSP: timeout during firmware loading\n");
return -EIO;
@@ -798,9 +803,7 @@
}
-#ifdef HDSP_FW_LOADER
static int hdsp_request_fw_loader(struct hdsp *hdsp);
-#endif
static int hdsp_check_for_firmware (struct hdsp *hdsp, int load_on_demand)
{
@@ -813,10 +816,8 @@
snd_printk(KERN_ERR "Hammerfall-DSP: firmware not present.\n");
/* try to load firmware */
if (! (hdsp->state & HDSP_FirmwareCached)) {
-#ifdef HDSP_FW_LOADER
if (! hdsp_request_fw_loader(hdsp))
return 0;
-#endif
snd_printk(KERN_ERR
"Hammerfall-DSP: No firmware loaded nor "
"cached, please upload firmware.\n");
@@ -3673,9 +3674,7 @@
}
} else {
int err = -EINVAL;
-#ifdef HDSP_FW_LOADER
err = hdsp_request_fw_loader(hdsp);
-#endif
if (err < 0) {
snd_iprintf(buffer,
"No firmware loaded nor cached, "
@@ -5100,8 +5099,18 @@
if (hdsp_check_for_iobox (hdsp))
return -EIO;
- if (copy_from_user(hdsp->firmware_cache, firmware_data, sizeof(hdsp->firmware_cache)) != 0)
+ if (!hdsp->fw_uploaded) {
+ hdsp->fw_uploaded = vmalloc(HDSP_FIRMWARE_SIZE);
+ if (!hdsp->fw_uploaded)
+ return -ENOMEM;
+ }
+
+ if (copy_from_user(hdsp->fw_uploaded, firmware_data,
+ HDSP_FIRMWARE_SIZE)) {
+ vfree(hdsp->fw_uploaded);
+ hdsp->fw_uploaded = NULL;
return -EFAULT;
+ }
hdsp->state |= HDSP_FirmwareCached;
@@ -5330,7 +5339,6 @@
return 0;
}
-#ifdef HDSP_FW_LOADER
/* load firmware via hotplug fw loader */
static int hdsp_request_fw_loader(struct hdsp *hdsp)
{
@@ -5373,16 +5381,13 @@
snd_printk(KERN_ERR "Hammerfall-DSP: cannot load firmware %s\n", fwfile);
return -ENOENT;
}
- if (fw->size < sizeof(hdsp->firmware_cache)) {
+ if (fw->size < HDSP_FIRMWARE_SIZE) {
snd_printk(KERN_ERR "Hammerfall-DSP: too short firmware size %d (expected %d)\n",
- (int)fw->size, (int)sizeof(hdsp->firmware_cache));
- release_firmware(fw);
+ (int)fw->size, HDSP_FIRMWARE_SIZE);
return -EINVAL;
}
- memcpy(hdsp->firmware_cache, fw->data, sizeof(hdsp->firmware_cache));
-
- release_firmware(fw);
+ hdsp->firmware = fw;
hdsp->state |= HDSP_FirmwareCached;
@@ -5406,7 +5411,6 @@
}
return 0;
}
-#endif
static int __devinit snd_hdsp_create(struct snd_card *card,
struct hdsp *hdsp)
@@ -5504,7 +5508,6 @@
return err;
if ((hdsp_read (hdsp, HDSP_statusRegister) & HDSP_DllError) != 0) {
-#ifdef HDSP_FW_LOADER
if ((err = hdsp_request_fw_loader(hdsp)) < 0)
/* we don't fail as this can happen
if userspace is not ready for
@@ -5514,7 +5517,6 @@
else
/* init is complete, we return */
return 0;
-#endif
/* we defer initialization */
snd_printk(KERN_INFO "Hammerfall-DSP: card initialization pending : waiting for firmware\n");
if ((err = snd_hdsp_create_hwdep(card, hdsp)) < 0)
@@ -5568,6 +5570,10 @@
snd_hdsp_free_buffers(hdsp);
+ if (hdsp->firmware)
+ release_firmware(hdsp->firmware);
+ vfree(hdsp->fw_uploaded);
+
if (hdsp->iobase)
iounmap(hdsp->iobase);