Changeset 464 for GPL/trunk/alsa-kernel/include/sound/pcm.h

Timestamp:

Oct 8, 2009, 10:35:00 AM (16 years ago)

Author:

Paul Smedley

Message:

Update ALSA kernel to 1.0.21 level

File:

• GPL/trunk/alsa-kernel/include/sound/pcm.h (modified) (5 diffs)

GPL/trunk/alsa-kernel/include/sound/pcm.h

@@ -99 +99 @@
 #define SNDRV_PCM_IOCTL1_CHANNEL_INFO   2
 #define SNDRV_PCM_IOCTL1_GSTATE         3
+#define SNDRV_PCM_IOCTL1_FIFO_SIZE      4
 
 #define SNDRV_PCM_TRIGGER_STOP          0
@@ -271 +272 @@
         snd_pcm_uframes_t hw_ptr_interrupt; /* Position at interrupt time */
         unsigned long hw_ptr_jiffies;   /* Time when hw_ptr is updated */
+        snd_pcm_sframes_t delay;        /* extra delay; typically FIFO size */
 
         /* -- HW params -- */
@@ -490 +492 @@
 void snd_pcm_vma_notify_data(void *client, void *data);
 int snd_pcm_mmap_data(struct snd_pcm_substream *substream, struct file *file, struct vm_area_struct *area);
-
-#if BITS_PER_LONG >= 64
-
-static inline void div64_32(u_int64_t *n, u_int32_t div, u_int32_t *rem)
-{
-        *rem = *n % div;
-        *n /= div;
-}
-
-#elif defined(i386)
-
-static inline void div64_32(u_int64_t *n, u_int32_t div, u_int32_t *rem)
-{
-        u_int32_t low, high;
-        low = *n & 0xffffffff;
-        high = *n >> 32;
-        if (high) {
-                u_int32_t high1 = high % div;
-                high /= div;
-                asm("divl %2":"=a" (low), "=d" (*rem):"rm" (div), "a" (low), "d" (high1));
-                *n = (u_int64_t)high << 32 | low;
-        } else {
-                *n = low / div;
-                *rem = low % div;
-        }
-}
-#else
-
-static inline void divl(u_int32_t high, u_int32_t low,
-                        u_int32_t div,
-                        u_int32_t *q, u_int32_t *r)
-{
-        u_int64_t n = (u_int64_t)high << 32 | low;
-        u_int64_t d = (u_int64_t)div << 31;
-        u_int32_t q1 = 0;
-        int c = 32;
-        while (n > 0xffffffffU) {
-                q1 <<= 1;
-                if (n >= d) {
-                        n -= d;
-                        q1 |= 1;
-                }
-                d >>= 1;
-                c--;
-        }
-        q1 <<= c;
-        if (n) {
-                low = n;
-                *q = q1 | (low / div);
-                *r = low % div;
-        } else {
-                *r = 0;
-                *q = q1;
-        }
-        return;
-}
-
-static inline void div64_32(u_int64_t *n, u_int32_t div, u_int32_t *rem)
-{
-        u_int32_t low, high;
-        low = *n & 0xffffffff;
-        high = *n >> 32;
-        if (high) {
-                u_int32_t high1 = high % div;
-                u_int32_t low1 = low;
-                high /= div;
-                divl(high1, low1, div, &low, rem);
-                *n = (u_int64_t)high << 32 | low;
-        } else {
-                *n = low / div;
-                *rem = low % div;
-        }
-}
-#endif
 
 /*
@@ -992 +920 @@
 int snd_pcm_lib_free_pages(struct snd_pcm_substream *substream);
 
+#ifdef CONFIG_SND_DMA_SGBUF
 /*
  * SG-buffer handling
@@ -1016 +945 @@
 unsigned int snd_pcm_sgbuf_get_chunk_size(struct snd_pcm_substream *substream,
                                           unsigned int ofs, unsigned int size);
+
+#else /* !SND_DMA_SGBUF */
+/*
+ * fake using a continuous buffer
+ */
+static inline dma_addr_t
+snd_pcm_sgbuf_get_addr(struct snd_pcm_substream *substream, unsigned int ofs)
+{
+        return substream->runtime->dma_addr + ofs;
+}
+
+static inline void *
+snd_pcm_sgbuf_get_ptr(struct snd_pcm_substream *substream, unsigned int ofs)
+{
+        return substream->runtime->dma_area + ofs;
+}
+
+#define snd_pcm_sgbuf_ops_page  NULL
+
+#define snd_pcm_sgbuf_get_chunk_size(subs, ofs, size)   (size)
+
+#endif /* SND_DMA_SGBUF */
 
 /* handle mmap counter - PCM mmap callback should handle this counter properly */