#include <asm/io.h>
#include <linux/pci.h>
#include <linux/time.h>
+#include <linux/mutex.h>
+
#include <sound/core.h>
#include <sound/trident.h>
#define page_to_addr(trident,page) __tlb_to_addr(trident, (page) << 1)
/* fill TLB entries -- we need to fill two entries */
-static inline void set_tlb_bus(trident_t *trident, int page, unsigned long ptr, dma_addr_t addr)
+static inline void set_tlb_bus(struct snd_trident *trident, int page,
+ unsigned long ptr, dma_addr_t addr)
{
page <<= 1;
__set_tlb_bus(trident, page, ptr, addr);
__set_tlb_bus(trident, page+1, ptr + SNDRV_TRIDENT_PAGE_SIZE, addr + SNDRV_TRIDENT_PAGE_SIZE);
}
-static inline void set_silent_tlb(trident_t *trident, int page)
+static inline void set_silent_tlb(struct snd_trident *trident, int page)
{
page <<= 1;
__set_tlb_bus(trident, page, (unsigned long)trident->tlb.silent_page.area, trident->tlb.silent_page.addr);
#define page_to_addr(trident,page) __tlb_to_addr(trident, (page) * UNIT_PAGES)
/* fill TLB entries -- UNIT_PAGES entries must be filled */
-static inline void set_tlb_bus(trident_t *trident, int page, unsigned long ptr, dma_addr_t addr)
+static inline void set_tlb_bus(struct snd_trident *trident, int page,
+ unsigned long ptr, dma_addr_t addr)
{
int i;
page *= UNIT_PAGES;
addr += SNDRV_TRIDENT_PAGE_SIZE;
}
}
-static inline void set_silent_tlb(trident_t *trident, int page)
+static inline void set_silent_tlb(struct snd_trident *trident, int page)
{
int i;
page *= UNIT_PAGES;
#endif /* PAGE_SIZE */
/* calculate buffer pointer from offset address */
-inline static void *offset_ptr(trident_t *trident, int offset)
+static inline void *offset_ptr(struct snd_trident *trident, int offset)
{
char *ptr;
ptr = page_to_ptr(trident, get_aligned_page(offset));
}
/* first and last (aligned) pages of memory block */
-#define firstpg(blk) (((snd_trident_memblk_arg_t*)snd_util_memblk_argptr(blk))->first_page)
-#define lastpg(blk) (((snd_trident_memblk_arg_t*)snd_util_memblk_argptr(blk))->last_page)
+#define firstpg(blk) (((struct snd_trident_memblk_arg *)snd_util_memblk_argptr(blk))->first_page)
+#define lastpg(blk) (((struct snd_trident_memblk_arg *)snd_util_memblk_argptr(blk))->last_page)
/*
* search empty pages which may contain given size
*/
-static snd_util_memblk_t *
-search_empty(snd_util_memhdr_t *hdr, int size)
+static struct snd_util_memblk *
+search_empty(struct snd_util_memhdr *hdr, int size)
{
- snd_util_memblk_t *blk, *prev;
+ struct snd_util_memblk *blk, *prev;
int page, psize;
struct list_head *p;
prev = NULL;
page = 0;
list_for_each(p, &hdr->block) {
- blk = list_entry(p, snd_util_memblk_t, list);
+ blk = list_entry(p, struct snd_util_memblk, list);
if (page + psize <= firstpg(blk))
goto __found_pages;
page = lastpg(blk) + 1;
static int is_valid_page(unsigned long ptr)
{
if (ptr & ~0x3fffffffUL) {
- snd_printk("max memory size is 1GB!!\n");
+ snd_printk(KERN_ERR "max memory size is 1GB!!\n");
return 0;
}
if (ptr & (SNDRV_TRIDENT_PAGE_SIZE-1)) {
- snd_printk("page is not aligned\n");
+ snd_printk(KERN_ERR "page is not aligned\n");
return 0;
}
return 1;
/*
* page allocation for DMA (Scatter-Gather version)
*/
-static snd_util_memblk_t *
-snd_trident_alloc_sg_pages(trident_t *trident, snd_pcm_substream_t *substream)
+static struct snd_util_memblk *
+snd_trident_alloc_sg_pages(struct snd_trident *trident,
+ struct snd_pcm_substream *substream)
{
- snd_util_memhdr_t *hdr;
- snd_util_memblk_t *blk;
- snd_pcm_runtime_t *runtime = substream->runtime;
+ struct snd_util_memhdr *hdr;
+ struct snd_util_memblk *blk;
+ struct snd_pcm_runtime *runtime = substream->runtime;
int idx, page;
struct snd_sg_buf *sgbuf = snd_pcm_substream_sgbuf(substream);
- down(&hdr->block_mutex);
+ mutex_lock(&hdr->block_mutex);
blk = search_empty(hdr, runtime->dma_bytes);
if (blk == NULL) {
- up(&hdr->block_mutex);
+ mutex_unlock(&hdr->block_mutex);
return NULL;
}
if (lastpg(blk) - firstpg(blk) >= sgbuf->pages) {
snd_printk(KERN_ERR "page calculation doesn't match: allocated pages = %d, trident = %d/%d\n", sgbuf->pages, firstpg(blk), lastpg(blk));
__snd_util_mem_free(hdr, blk);
- up(&hdr->block_mutex);
+ mutex_unlock(&hdr->block_mutex);
return NULL;
}
unsigned long ptr = (unsigned long)sgbuf->table[idx].buf;
if (! is_valid_page(addr)) {
__snd_util_mem_free(hdr, blk);
- up(&hdr->block_mutex);
+ mutex_unlock(&hdr->block_mutex);
return NULL;
}
set_tlb_bus(trident, page, ptr, addr);
}
- up(&hdr->block_mutex);
+ mutex_unlock(&hdr->block_mutex);
return blk;
}
/*
* page allocation for DMA (contiguous version)
*/
-static snd_util_memblk_t *
-snd_trident_alloc_cont_pages(trident_t *trident, snd_pcm_substream_t *substream)
+static struct snd_util_memblk *
+snd_trident_alloc_cont_pages(struct snd_trident *trident,
+ struct snd_pcm_substream *substream)
{
- snd_util_memhdr_t *hdr;
- snd_util_memblk_t *blk;
+ struct snd_util_memhdr *hdr;
+ struct snd_util_memblk *blk;
int page;
- snd_pcm_runtime_t *runtime = substream->runtime;
+ struct snd_pcm_runtime *runtime = substream->runtime;
dma_addr_t addr;
unsigned long ptr;
hdr = trident->tlb.memhdr;
snd_assert(hdr != NULL, return NULL);
- down(&hdr->block_mutex);
+ mutex_lock(&hdr->block_mutex);
blk = search_empty(hdr, runtime->dma_bytes);
if (blk == NULL) {
- up(&hdr->block_mutex);
+ mutex_unlock(&hdr->block_mutex);
return NULL;
}
ptr += SNDRV_TRIDENT_PAGE_SIZE, addr += SNDRV_TRIDENT_PAGE_SIZE) {
if (! is_valid_page(addr)) {
__snd_util_mem_free(hdr, blk);
- up(&hdr->block_mutex);
+ mutex_unlock(&hdr->block_mutex);
return NULL;
}
set_tlb_bus(trident, page, ptr, addr);
}
- up(&hdr->block_mutex);
+ mutex_unlock(&hdr->block_mutex);
return blk;
}
/*
* page allocation for DMA
*/
-snd_util_memblk_t *
-snd_trident_alloc_pages(trident_t *trident, snd_pcm_substream_t *substream)
+struct snd_util_memblk *
+snd_trident_alloc_pages(struct snd_trident *trident,
+ struct snd_pcm_substream *substream)
{
snd_assert(trident != NULL, return NULL);
snd_assert(substream != NULL, return NULL);
/*
* release DMA buffer from page table
*/
-int snd_trident_free_pages(trident_t *trident, snd_util_memblk_t *blk)
+int snd_trident_free_pages(struct snd_trident *trident,
+ struct snd_util_memblk *blk)
{
- snd_util_memhdr_t *hdr;
+ struct snd_util_memhdr *hdr;
int page;
snd_assert(trident != NULL, return -EINVAL);
snd_assert(blk != NULL, return -EINVAL);
hdr = trident->tlb.memhdr;
- down(&hdr->block_mutex);
+ mutex_lock(&hdr->block_mutex);
/* reset TLB entries */
for (page = firstpg(blk); page <= lastpg(blk); page++)
set_silent_tlb(trident, page);
/* free memory block */
__snd_util_mem_free(hdr, blk);
- up(&hdr->block_mutex);
+ mutex_unlock(&hdr->block_mutex);
return 0;
}
/*
*/
-static int synth_alloc_pages(trident_t *hw, snd_util_memblk_t *blk);
-static int synth_free_pages(trident_t *hw, snd_util_memblk_t *blk);
+static int synth_alloc_pages(struct snd_trident *hw, struct snd_util_memblk *blk);
+static int synth_free_pages(struct snd_trident *hw, struct snd_util_memblk *blk);
/*
* allocate a synth sample area
*/
-snd_util_memblk_t *
-snd_trident_synth_alloc(trident_t *hw, unsigned int size)
+struct snd_util_memblk *
+snd_trident_synth_alloc(struct snd_trident *hw, unsigned int size)
{
- snd_util_memblk_t *blk;
- snd_util_memhdr_t *hdr = hw->tlb.memhdr;
+ struct snd_util_memblk *blk;
+ struct snd_util_memhdr *hdr = hw->tlb.memhdr;
- down(&hdr->block_mutex);
+ mutex_lock(&hdr->block_mutex);
blk = __snd_util_mem_alloc(hdr, size);
if (blk == NULL) {
- up(&hdr->block_mutex);
+ mutex_unlock(&hdr->block_mutex);
return NULL;
}
if (synth_alloc_pages(hw, blk)) {
__snd_util_mem_free(hdr, blk);
- up(&hdr->block_mutex);
+ mutex_unlock(&hdr->block_mutex);
return NULL;
}
- up(&hdr->block_mutex);
+ mutex_unlock(&hdr->block_mutex);
return blk;
}
* free a synth sample area
*/
int
-snd_trident_synth_free(trident_t *hw, snd_util_memblk_t *blk)
+snd_trident_synth_free(struct snd_trident *hw, struct snd_util_memblk *blk)
{
- snd_util_memhdr_t *hdr = hw->tlb.memhdr;
+ struct snd_util_memhdr *hdr = hw->tlb.memhdr;
- down(&hdr->block_mutex);
+ mutex_lock(&hdr->block_mutex);
synth_free_pages(hw, blk);
__snd_util_mem_free(hdr, blk);
- up(&hdr->block_mutex);
+ mutex_unlock(&hdr->block_mutex);
return 0;
}
/*
* reset TLB entry and free kernel page
*/
-static void clear_tlb(trident_t *trident, int page)
+static void clear_tlb(struct snd_trident *trident, int page)
{
void *ptr = page_to_ptr(trident, page);
dma_addr_t addr = page_to_addr(trident, page);
}
/* check new allocation range */
-static void get_single_page_range(snd_util_memhdr_t *hdr, snd_util_memblk_t *blk, int *first_page_ret, int *last_page_ret)
+static void get_single_page_range(struct snd_util_memhdr *hdr,
+ struct snd_util_memblk *blk,
+ int *first_page_ret, int *last_page_ret)
{
struct list_head *p;
- snd_util_memblk_t *q;
+ struct snd_util_memblk *q;
int first_page, last_page;
first_page = firstpg(blk);
if ((p = blk->list.prev) != &hdr->block) {
- q = list_entry(p, snd_util_memblk_t, list);
+ q = list_entry(p, struct snd_util_memblk, list);
if (lastpg(q) == first_page)
first_page++; /* first page was already allocated */
}
last_page = lastpg(blk);
if ((p = blk->list.next) != &hdr->block) {
- q = list_entry(p, snd_util_memblk_t, list);
+ q = list_entry(p, struct snd_util_memblk, list);
if (firstpg(q) == last_page)
last_page--; /* last page was already allocated */
}
/*
* allocate kernel pages and assign them to TLB
*/
-static int synth_alloc_pages(trident_t *hw, snd_util_memblk_t *blk)
+static int synth_alloc_pages(struct snd_trident *hw, struct snd_util_memblk *blk)
{
int page, first_page, last_page;
struct snd_dma_buffer dmab;
/*
* free pages
*/
-static int synth_free_pages(trident_t *trident, snd_util_memblk_t *blk)
+static int synth_free_pages(struct snd_trident *trident, struct snd_util_memblk *blk)
{
int page, first_page, last_page;
/*
* copy_from_user(blk + offset, data, size)
*/
-int snd_trident_synth_copy_from_user(trident_t *trident, snd_util_memblk_t *blk, int offset, const char __user *data, int size)
+int snd_trident_synth_copy_from_user(struct snd_trident *trident,
+ struct snd_util_memblk *blk,
+ int offset, const char __user *data, int size)
{
int page, nextofs, end_offset, temp, temp1;
git://git.onelab.eu / linux-2.6.git / blobdiff