ASoC: add sport driver for bf6xx soc

The SPORT(Serial Port) module on bf6xx soc has a totally different ip
comparing to bf5xx soc. An individual SPORT module consists of two
independently configurable SPORT halves with identical functionality.
Each SPORT half can be configured for either transmitter or receiver.
Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/blackfin/Kconfig

 config SND_BF5XX_I2S
-	tristate "SoC I2S Audio for the ADI BF5xx chip"
+	tristate "SoC I2S Audio for the ADI Blackfin chip"
 	depends on BLACKFIN
-	select SND_BF5XX_SOC_SPORT
+	select SND_BF5XX_SOC_SPORT if !BF60x
+	select SND_BF6XX_SOC_SPORT if BF60x
 	help
 	  Say Y or M if you want to add support for codecs attached to
 	  the Blackfin SPORT (synchronous serial ports) interface in I2S
@@ -162,6 +163,9 @@ config SND_BF5XX_SOC_AD1980
 config SND_BF5XX_SOC_SPORT
 	tristate
 
+config SND_BF6XX_SOC_SPORT
+	tristate
+
 config SND_BF5XX_SOC_I2S
 	tristate
 
@@ -173,7 +177,7 @@ config SND_BF5XX_SOC_AC97
 
 config SND_BF5XX_SPORT_NUM
 	int "Set a SPORT for Sound chip"
-	depends on (SND_BF5XX_I2S || SND_BF5XX_AC97 || SND_BF5XX_TDM)
+	depends on (SND_BF5XX_SOC_SPORT || SND_BF6XX_SOC_SPORT)
 	range 0 3 if BF54x
 	range 0 1 if !BF54x
 	default 0

sound/soc/blackfin/Makefile

@@ -3,6 +3,7 @@ snd-bf5xx-ac97-objs := bf5xx-ac97-pcm.o
 snd-bf5xx-i2s-objs := bf5xx-i2s-pcm.o
 snd-bf5xx-tdm-objs := bf5xx-tdm-pcm.o
 snd-soc-bf5xx-sport-objs := bf5xx-sport.o
+snd-soc-bf6xx-sport-objs := bf6xx-sport.o
 snd-soc-bf5xx-ac97-objs := bf5xx-ac97.o
 snd-soc-bf5xx-i2s-objs := bf5xx-i2s.o
 snd-soc-bf5xx-tdm-objs := bf5xx-tdm.o
@@ -11,6 +12,7 @@ obj-$(CONFIG_SND_BF5XX_AC97) += snd-bf5xx-ac97.o
 obj-$(CONFIG_SND_BF5XX_I2S) += snd-bf5xx-i2s.o
 obj-$(CONFIG_SND_BF5XX_TDM) += snd-bf5xx-tdm.o
 obj-$(CONFIG_SND_BF5XX_SOC_SPORT) += snd-soc-bf5xx-sport.o
+obj-$(CONFIG_SND_BF6XX_SOC_SPORT) += snd-soc-bf6xx-sport.o
 obj-$(CONFIG_SND_BF5XX_SOC_AC97) += snd-soc-bf5xx-ac97.o
 obj-$(CONFIG_SND_BF5XX_SOC_I2S) += snd-soc-bf5xx-i2s.o
 obj-$(CONFIG_SND_BF5XX_SOC_TDM) += snd-soc-bf5xx-tdm.o

sound/soc/blackfin/bf6xx-sport.h

+/*
+ * bf6xx_sport - Analog Devices BF6XX SPORT driver
+ *
+ * Copyright (c) 2012 Analog Devices Inc.
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef _BF6XX_SPORT_H_
+#define _BF6XX_SPORT_H_
+
+#include <linux/platform_device.h>
+#include <asm/bfin_sport3.h>
+
+struct sport_device {
+	struct platform_device *pdev;
+	const unsigned short *pin_req;
+	struct sport_register *tx_regs;
+	struct sport_register *rx_regs;
+	int tx_dma_chan;
+	int rx_dma_chan;
+	int tx_err_irq;
+	int rx_err_irq;
+
+	void (*tx_callback)(void *data);
+	void *tx_data;
+	void (*rx_callback)(void *data);
+	void *rx_data;
+
+	struct dmasg *tx_desc;
+	struct dmasg *rx_desc;
+	unsigned int tx_desc_size;
+	unsigned int rx_desc_size;
+	unsigned char *tx_buf;
+	unsigned char *rx_buf;
+	unsigned int tx_fragsize;
+	unsigned int rx_fragsize;
+	unsigned int tx_frags;
+	unsigned int rx_frags;
+	unsigned int wdsize;
+};
+
+struct sport_params {
+	u32 spctl;
+	u32 div;
+};
+
+struct sport_device *sport_create(struct platform_device *pdev);
+void sport_delete(struct sport_device *sport);
+int sport_set_tx_params(struct sport_device *sport,
+		struct sport_params *params);
+int sport_set_rx_params(struct sport_device *sport,
+		struct sport_params *params);
+void sport_tx_start(struct sport_device *sport);
+void sport_rx_start(struct sport_device *sport);
+void sport_tx_stop(struct sport_device *sport);
+void sport_rx_stop(struct sport_device *sport);
+void sport_set_tx_callback(struct sport_device *sport,
+	void (*tx_callback)(void *), void *tx_data);
+void sport_set_rx_callback(struct sport_device *sport,
+	void (*rx_callback)(void *), void *rx_data);
+int sport_config_tx_dma(struct sport_device *sport, void *buf,
+	int fragcount, size_t fragsize);
+int sport_config_rx_dma(struct sport_device *sport, void *buf,
+	int fragcount, size_t fragsize);
+unsigned long sport_curr_offset_tx(struct sport_device *sport);
+unsigned long sport_curr_offset_rx(struct sport_device *sport);
+
+
+
+#endif