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authorMark Brown <broonie@opensource.wolfsonmicro.com>2008-07-30 19:12:04 +0100
committerMark Brown <broonie@opensource.wolfsonmicro.com>2008-10-30 15:45:21 +0000
commit1b340bd7e444f20eb2df88c65fa34960c4736ee9 (patch)
treeb96fe0f1aefc42ef49195d302bef78744a9efeb1 /sound/soc/pxa/pxa-ssp.h
parent219b93f5252086c8c8d647c77fc9e1377aab0c8d (diff)
ASoC: Add PXA SSP support
The SSP ports PXA series processors can be used to implement a variety of audio interface formats. This patch implements support for I2S, DSP A and DSP B modes on these ports. This patch is based on the previous out of tree pxa2xx-ssp driver (which was originally written by Liam Girdwood with updates from Philipp Zabel and Nicola Perrino) and pxa3xx-ssp driver (originally written by Seth Forsee based on the pxa2xx-ssp driver). Testing coverage is not complete currently. Tested-by: Daniel Ribeiro <drwyrm@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/pxa/pxa-ssp.h')
-rw-r--r--sound/soc/pxa/pxa-ssp.h47
1 files changed, 47 insertions, 0 deletions
diff --git a/sound/soc/pxa/pxa-ssp.h b/sound/soc/pxa/pxa-ssp.h
new file mode 100644
index 000000000000..91deadd55675
--- /dev/null
+++ b/sound/soc/pxa/pxa-ssp.h
@@ -0,0 +1,47 @@
+/*
+ * ASoC PXA SSP port support
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _PXA_SSP_H
+#define _PXA_SSP_H
+
+/* pxa DAI SSP IDs */
+#define PXA_DAI_SSP1 0
+#define PXA_DAI_SSP2 1
+#define PXA_DAI_SSP3 2
+#define PXA_DAI_SSP4 3
+
+/* SSP clock sources */
+#define PXA_SSP_CLK_PLL 0
+#define PXA_SSP_CLK_EXT 1
+#define PXA_SSP_CLK_NET 2
+#define PXA_SSP_CLK_AUDIO 3
+#define PXA_SSP_CLK_NET_PLL 4
+
+/* SSP audio dividers */
+#define PXA_SSP_AUDIO_DIV_ACDS 0
+#define PXA_SSP_AUDIO_DIV_SCDB 1
+#define PXA_SSP_DIV_SCR 2
+
+/* SSP ACDS audio dividers values */
+#define PXA_SSP_CLK_AUDIO_DIV_1 0
+#define PXA_SSP_CLK_AUDIO_DIV_2 1
+#define PXA_SSP_CLK_AUDIO_DIV_4 2
+#define PXA_SSP_CLK_AUDIO_DIV_8 3
+#define PXA_SSP_CLK_AUDIO_DIV_16 4
+#define PXA_SSP_CLK_AUDIO_DIV_32 5
+
+/* SSP divider bypass */
+#define PXA_SSP_CLK_SCDB_4 0
+#define PXA_SSP_CLK_SCDB_1 1
+#define PXA_SSP_CLK_SCDB_8 2
+
+#define PXA_SSP_PLL_OUT 0
+
+extern struct snd_soc_dai pxa_ssp_dai[4];
+
+#endif