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authorTakashi Iwai <tiwai@suse.de>2005-11-17 10:48:52 +0100
committerJaroslav Kysela <perex@suse.cz>2006-01-03 12:17:09 +0100
commitcb432379eff40d5656ca9f24afc435b4df353d13 (patch)
treef00428351803fc5ad0b5b2c74c239402d47a7293 /sound/usb/usx2y/usX2Yhwdep.c
parent9fd9156c6b0dfb8630f68d11dc48a3e824aa64e6 (diff)
[ALSA] usx2y - Code clean up
Modules: USB USX2Y Clean up snd-usb-usx2y driver code: - Avoid unnecessary cast - Fix spaces/indents - Use kzalloc() - Remove weird debug prints Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb/usx2y/usX2Yhwdep.c')
-rw-r--r--sound/usb/usx2y/usX2Yhwdep.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/sound/usb/usx2y/usX2Yhwdep.c b/sound/usb/usx2y/usX2Yhwdep.c
index 8abe08611df6..fc0d534ec7fc 100644
--- a/sound/usb/usx2y/usX2Yhwdep.c
+++ b/sound/usb/usx2y/usX2Yhwdep.c
@@ -67,15 +67,15 @@ static struct vm_operations_struct us428ctls_vm_ops = {
static int snd_us428ctls_mmap(snd_hwdep_t * hw, struct file *filp, struct vm_area_struct *area)
{
unsigned long size = (unsigned long)(area->vm_end - area->vm_start);
- usX2Ydev_t *us428 = (usX2Ydev_t*)hw->private_data;
+ usX2Ydev_t *us428 = hw->private_data;
// FIXME this hwdep interface is used twice: fpga download and mmap for controlling Lights etc. Maybe better using 2 hwdep devs?
// so as long as the device isn't fully initialised yet we return -EBUSY here.
- if (!(((usX2Ydev_t*)hw->private_data)->chip_status & USX2Y_STAT_CHIP_INIT))
+ if (!(us428->chip_status & USX2Y_STAT_CHIP_INIT))
return -EBUSY;
/* if userspace tries to mmap beyond end of our buffer, fail */
- if (size > ((PAGE_SIZE - 1 + sizeof(us428ctls_sharedmem_t)) / PAGE_SIZE) * PAGE_SIZE) {
+ if (size > PAGE_ALIGN(sizeof(us428ctls_sharedmem_t))) {
snd_printd( "%lu > %lu\n", size, (unsigned long)sizeof(us428ctls_sharedmem_t));
return -EINVAL;
}
@@ -96,7 +96,7 @@ static int snd_us428ctls_mmap(snd_hwdep_t * hw, struct file *filp, struct vm_are
static unsigned int snd_us428ctls_poll(snd_hwdep_t *hw, struct file *file, poll_table *wait)
{
unsigned int mask = 0;
- usX2Ydev_t *us428 = (usX2Ydev_t*)hw->private_data;
+ usX2Ydev_t *us428 = hw->private_data;
us428ctls_sharedmem_t *shm = us428->us428ctls_sharedmem;
if (us428->chip_status & USX2Y_STAT_CHIP_HUP)
return POLLHUP;
@@ -127,9 +127,10 @@ static int snd_usX2Y_hwdep_dsp_status(snd_hwdep_t *hw, snd_hwdep_dsp_status_t *i
[USX2Y_TYPE_224] = "us224",
[USX2Y_TYPE_428] = "us428",
};
+ usX2Ydev_t *us428 = hw->private_data;
int id = -1;
- switch (le16_to_cpu(((usX2Ydev_t*)hw->private_data)->chip.dev->descriptor.idProduct)) {
+ switch (le16_to_cpu(us428->chip.dev->descriptor.idProduct)) {
case USB_ID_US122:
id = USX2Y_TYPE_122;
break;
@@ -144,7 +145,7 @@ static int snd_usX2Y_hwdep_dsp_status(snd_hwdep_t *hw, snd_hwdep_dsp_status_t *i
return -ENODEV;
strcpy(info->id, type_ids[id]);
info->num_dsps = 2; // 0: Prepad Data, 1: FPGA Code
- if (((usX2Ydev_t*)hw->private_data)->chip_status & USX2Y_STAT_CHIP_INIT)
+ if (us428->chip_status & USX2Y_STAT_CHIP_INIT)
info->chip_ready = 1;
info->version = USX2Y_DRIVER_VERSION;
return 0;

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