1 files changed, 37 insertions, 8 deletions

diff --git a/sound/soc/blackfin/bf5xx-tdm.c b/sound/soc/blackfin/bf5xx-tdm.c
index ff546e9..4b36012 100644
--- a/sound/soc/blackfin/bf5xx-tdm.c
+++ b/sound/soc/blackfin/bf5xx-tdm.c
@@ -46,14 +46,6 @@
 #include "bf5xx-sport.h"
 #include "bf5xx-tdm.h"
 
-struct bf5xx_tdm_port {
-	u16 tcr1;
-	u16 rcr1;
-	u16 tcr2;
-	u16 rcr2;
-	int configured;
-};
-
 static struct bf5xx_tdm_port bf5xx_tdm;
 static int sport_num = CONFIG_SND_BF5XX_SPORT_NUM;
 
@@ -181,6 +173,40 @@ static void bf5xx_tdm_shutdown(struct snd_pcm_substream *substream,
 		bf5xx_tdm.configured = 0;
 }
 
+static int bf5xx_tdm_set_channel_map(struct snd_soc_dai *dai,
+		unsigned int tx_num, unsigned int *tx_slot,
+		unsigned int rx_num, unsigned int *rx_slot)
+{
+	int i;
+	unsigned int slot;
+	unsigned int tx_mapped = 0, rx_mapped = 0;
+
+	if ((tx_num > BFIN_TDM_DAI_MAX_SLOTS) ||
+			(rx_num > BFIN_TDM_DAI_MAX_SLOTS))
+		return -EINVAL;
+
+	for (i = 0; i < tx_num; i++) {
+		slot = tx_slot[i];
+		if ((slot < BFIN_TDM_DAI_MAX_SLOTS) &&
+				(!(tx_mapped & (1 << slot)))) {
+			bf5xx_tdm.tx_map[i] = slot;
+			tx_mapped |= 1 << slot;
+		} else
+			return -EINVAL;
+	}
+	for (i = 0; i < rx_num; i++) {
+		slot = rx_slot[i];
+		if ((slot < BFIN_TDM_DAI_MAX_SLOTS) &&
+				(!(rx_mapped & (1 << slot)))) {
+			bf5xx_tdm.rx_map[i] = slot;
+			rx_mapped |= 1 << slot;
+		} else
+			return -EINVAL;
+	}
+
+	return 0;
+}
+
 #ifdef CONFIG_PM
 static int bf5xx_tdm_suspend(struct snd_soc_dai *dai)
 {
@@ -235,6 +261,7 @@ static struct snd_soc_dai_ops bf5xx_tdm_dai_ops = {
 	.hw_params      = bf5xx_tdm_hw_params,
 	.set_fmt        = bf5xx_tdm_set_dai_fmt,
 	.shutdown       = bf5xx_tdm_shutdown,
+	.set_channel_map   = bf5xx_tdm_set_channel_map,
 };
 
 struct snd_soc_dai bf5xx_tdm_dai = {
@@ -300,6 +327,8 @@ static int __devinit bfin_tdm_probe(struct platform_device *pdev)
 		pr_err("Failed to register DAI: %d\n", ret);
 		goto sport_config_err;
 	}
+
+	sport_handle->private_data = &bf5xx_tdm;
 	return 0;
 
 sport_config_err: