ALSA: hda - Add the support for Creative SoundCore3D

The controller is compatible with HD-audio 1.0a with some specific
restrictions.
- The BDLE entries can't be over 4k boundary
- No position-buffer and no MSI

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 22 insertions, 4 deletions

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index c19e71a94e1b..a70d7e5443aa 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -497,6 +497,7 @@ enum {
         AZX_DRIVER_NVIDIA,
         AZX_DRIVER_TERA,
         AZX_DRIVER_CTX,
+        AZX_DRIVER_CTHDA,
         AZX_DRIVER_GENERIC,
         AZX_NUM_DRIVERS, /* keep this as last entry */
 };
@@ -518,6 +519,7 @@ enum {
 #define AZX_DCAPS_OLD_SSYNC     (1 << 20)       /* Old SSYNC reg for ICH */
 #define AZX_DCAPS_BUFSIZE       (1 << 21)       /* no buffer size alignment */
 #define AZX_DCAPS_ALIGN_BUFSIZE (1 << 22)       /* buffer size alignment */
+#define AZX_DCAPS_4K_BDLE_BOUNDARY (1 << 23)    /* BDLE in 4k boundary */
 
 /* quirks for ATI SB / AMD Hudson */
 #define AZX_DCAPS_PRESET_ATI_SB \
@@ -533,6 +535,9 @@ enum {
         (AZX_DCAPS_NVIDIA_SNOOP | AZX_DCAPS_RIRB_DELAY | AZX_DCAPS_NO_MSI |\
          AZX_DCAPS_ALIGN_BUFSIZE)
 
+#define AZX_DCAPS_PRESET_CTHDA \
+        (AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_4K_BDLE_BOUNDARY)
+
 static char *driver_short_names[] __devinitdata = {
         [AZX_DRIVER_ICH] = "HDA Intel",
         [AZX_DRIVER_PCH] = "HDA Intel PCH",
@@ -546,6 +551,7 @@ static char *driver_short_names[] __devinitdata = {
         [AZX_DRIVER_NVIDIA] = "HDA NVidia",
         [AZX_DRIVER_TERA] = "HDA Teradici", 
         [AZX_DRIVER_CTX] = "HDA Creative", 
+        [AZX_DRIVER_CTHDA] = "HDA Creative",
         [AZX_DRIVER_GENERIC] = "HD-Audio Generic",
 };
 
@@ -1283,7 +1289,8 @@ static irqreturn_t azx_interrupt(int irq, void *dev_id)
 /*
  * set up a BDL entry
  */
-static int setup_bdle(struct snd_pcm_substream *substream,
+static int setup_bdle(struct azx *chip,
+                      struct snd_pcm_substream *substream,
                       struct azx_dev *azx_dev, u32 **bdlp,
                       int ofs, int size, int with_ioc)
 {
@@ -1302,6 +1309,12 @@ static int setup_bdle(struct snd_pcm_substream *substream,
                 bdl[1] = cpu_to_le32(upper_32_bits(addr));
                 /* program the size field of the BDL entry */
                 chunk = snd_pcm_sgbuf_get_chunk_size(substream, ofs, size);
+                /* one BDLE cannot cross 4K boundary on CTHDA chips */
+                if (chip->driver_caps & AZX_DCAPS_4K_BDLE_BOUNDARY) {
+                        u32 remain = 0x1000 - (ofs & 0xfff);
+                        if (chunk > remain)
+                                chunk = remain;
+                }
                 bdl[2] = cpu_to_le32(chunk);
                 /* program the IOC to enable interrupt
                  * only when the whole fragment is processed
@@ -1354,7 +1367,7 @@ static int azx_setup_periods(struct azx *chip,
                                    bdl_pos_adj[chip->dev_index]);
                         pos_adj = 0;
                 } else {
-                        ofs = setup_bdle(substream, azx_dev,
+                        ofs = setup_bdle(chip, substream, azx_dev,
                                          &bdl, ofs, pos_adj,
                                          !substream->runtime->no_period_wakeup);
                         if (ofs < 0)
@@ -1364,10 +1377,10 @@ static int azx_setup_periods(struct azx *chip,
                 pos_adj = 0;
         for (i = 0; i < periods; i++) {
                 if (i == periods - 1 && pos_adj)
-                        ofs = setup_bdle(substream, azx_dev, &bdl, ofs,
+                        ofs = setup_bdle(chip, substream, azx_dev, &bdl, ofs,
                                          period_bytes - pos_adj, 0);
                 else
-                        ofs = setup_bdle(substream, azx_dev, &bdl, ofs,
+                        ofs = setup_bdle(chip, substream, azx_dev, &bdl, ofs,
                                          period_bytes,
                                          !substream->runtime->no_period_wakeup);
                 if (ofs < 0)
@@ -3116,6 +3129,11 @@ static DEFINE_PCI_DEVICE_TABLE(azx_ids) = {
           .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
           AZX_DCAPS_RIRB_PRE_DELAY | AZX_DCAPS_POSFIX_LPIB },
 #endif
+        /* CTHDA chips */
+        { PCI_DEVICE(0x1102, 0x0010),
+          .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
+        { PCI_DEVICE(0x1102, 0x0012),
+          .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
         /* Vortex86MX */
         { PCI_DEVICE(0x17f3, 0x3010), .driver_data = AZX_DRIVER_GENERIC },
         /* VMware HDAudio */