Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 259 insertions, 0 deletions

diff --git a/kernel/sound/pci/oxygen/oxygen.h b/kernel/sound/pci/oxygen/oxygen.h
new file mode 100644
index 000000000..293d0b9a5
--- /dev/null
+++ b/kernel/sound/pci/oxygen/oxygen.h
@@ -0,0 +1,259 @@
+#ifndef OXYGEN_H_INCLUDED
+#define OXYGEN_H_INCLUDED
+
+#include <linux/mutex.h>
+#include <linux/spinlock.h>
+#include <linux/wait.h>
+#include <linux/workqueue.h>
+#include "oxygen_regs.h"
+
+/* 1 << PCM_x == OXYGEN_CHANNEL_x */
+#define PCM_A		0
+#define PCM_B		1
+#define PCM_C		2
+#define PCM_SPDIF	3
+#define PCM_MULTICH	4
+#define PCM_AC97	5
+#define PCM_COUNT	6
+
+#define OXYGEN_MCLKS(f_single, f_double, f_quad) ((MCLK_##f_single << 0) | \
+						  (MCLK_##f_double << 2) | \
+						  (MCLK_##f_quad   << 4))
+
+#define OXYGEN_IO_SIZE	0x100
+
+#define OXYGEN_EEPROM_ID	0x434d	/* "CM" */
+
+/* model-specific configuration of outputs/inputs */
+#define PLAYBACK_0_TO_I2S	0x0001
+     /* PLAYBACK_0_TO_AC97_0		not implemented */
+#define PLAYBACK_1_TO_SPDIF	0x0004
+#define PLAYBACK_2_TO_AC97_1	0x0008
+#define CAPTURE_0_FROM_I2S_1	0x0010
+#define CAPTURE_0_FROM_I2S_2	0x0020
+     /* CAPTURE_0_FROM_AC97_0		not implemented */
+#define CAPTURE_1_FROM_SPDIF	0x0080
+#define CAPTURE_2_FROM_I2S_2	0x0100
+#define CAPTURE_2_FROM_AC97_1	0x0200
+#define CAPTURE_3_FROM_I2S_3	0x0400
+#define MIDI_OUTPUT		0x0800
+#define MIDI_INPUT		0x1000
+#define AC97_CD_INPUT		0x2000
+#define AC97_FMIC_SWITCH	0x4000
+
+enum {
+	CONTROL_SPDIF_PCM,
+	CONTROL_SPDIF_INPUT_BITS,
+	CONTROL_MIC_CAPTURE_SWITCH,
+	CONTROL_LINE_CAPTURE_SWITCH,
+	CONTROL_CD_CAPTURE_SWITCH,
+	CONTROL_AUX_CAPTURE_SWITCH,
+	CONTROL_COUNT
+};
+
+#define OXYGEN_PCI_SUBID(sv, sd) \
+	.vendor = PCI_VENDOR_ID_CMEDIA, \
+	.device = 0x8788, \
+	.subvendor = sv, \
+	.subdevice = sd
+
+#define BROKEN_EEPROM_DRIVER_DATA ((unsigned long)-1)
+#define OXYGEN_PCI_SUBID_BROKEN_EEPROM \
+	OXYGEN_PCI_SUBID(PCI_VENDOR_ID_CMEDIA, 0x8788), \
+	.driver_data = BROKEN_EEPROM_DRIVER_DATA
+
+struct pci_dev;
+struct pci_device_id;
+struct snd_card;
+struct snd_pcm_substream;
+struct snd_pcm_hardware;
+struct snd_pcm_hw_params;
+struct snd_kcontrol_new;
+struct snd_rawmidi;
+struct snd_info_buffer;
+struct oxygen;
+
+struct oxygen_model {
+	const char *shortname;
+	const char *longname;
+	const char *chip;
+	void (*init)(struct oxygen *chip);
+	int (*control_filter)(struct snd_kcontrol_new *template);
+	int (*mixer_init)(struct oxygen *chip);
+	void (*cleanup)(struct oxygen *chip);
+	void (*suspend)(struct oxygen *chip);
+	void (*resume)(struct oxygen *chip);
+	void (*pcm_hardware_filter)(unsigned int channel,
+				    struct snd_pcm_hardware *hardware);
+	void (*set_dac_params)(struct oxygen *chip,
+			       struct snd_pcm_hw_params *params);
+	void (*set_adc_params)(struct oxygen *chip,
+			       struct snd_pcm_hw_params *params);
+	void (*update_dac_volume)(struct oxygen *chip);
+	void (*update_dac_mute)(struct oxygen *chip);
+	void (*update_center_lfe_mix)(struct oxygen *chip, bool mixed);
+	unsigned int (*adjust_dac_routing)(struct oxygen *chip,
+					   unsigned int play_routing);
+	void (*gpio_changed)(struct oxygen *chip);
+	void (*uart_input)(struct oxygen *chip);
+	void (*ac97_switch)(struct oxygen *chip,
+			    unsigned int reg, unsigned int mute);
+	void (*dump_registers)(struct oxygen *chip,
+			       struct snd_info_buffer *buffer);
+	const unsigned int *dac_tlv;
+	size_t model_data_size;
+	unsigned int device_config;
+	u8 dac_channels_pcm;
+	u8 dac_channels_mixer;
+	u8 dac_volume_min;
+	u8 dac_volume_max;
+	u8 misc_flags;
+	u8 function_flags;
+	u8 dac_mclks;
+	u8 adc_mclks;
+	u16 dac_i2s_format;
+	u16 adc_i2s_format;
+};
+
+struct oxygen {
+	unsigned long addr;
+	spinlock_t reg_lock;
+	struct mutex mutex;
+	struct snd_card *card;
+	struct pci_dev *pci;
+	struct snd_rawmidi *midi;
+	int irq;
+	void *model_data;
+	unsigned int interrupt_mask;
+	u8 dac_volume[8];
+	u8 dac_mute;
+	u8 pcm_active;
+	u8 pcm_running;
+	u8 dac_routing;
+	u8 spdif_playback_enable;
+	u8 has_ac97_0;
+	u8 has_ac97_1;
+	u32 spdif_bits;
+	u32 spdif_pcm_bits;
+	struct snd_pcm_substream *streams[PCM_COUNT];
+	struct snd_kcontrol *controls[CONTROL_COUNT];
+	struct work_struct spdif_input_bits_work;
+	struct work_struct gpio_work;
+	wait_queue_head_t ac97_waitqueue;
+	union {
+		u8 _8[OXYGEN_IO_SIZE];
+		__le16 _16[OXYGEN_IO_SIZE / 2];
+		__le32 _32[OXYGEN_IO_SIZE / 4];
+	} saved_registers;
+	u16 saved_ac97_registers[2][0x40];
+	unsigned int uart_input_count;
+	u8 uart_input[32];
+	struct oxygen_model model;
+};
+
+/* oxygen_lib.c */
+
+int oxygen_pci_probe(struct pci_dev *pci, int index, char *id,
+		     struct module *owner,
+		     const struct pci_device_id *ids,
+		     int (*get_model)(struct oxygen *chip,
+				      const struct pci_device_id *id
+				     )
+		    );
+void oxygen_pci_remove(struct pci_dev *pci);
+#ifdef CONFIG_PM_SLEEP
+extern const struct dev_pm_ops oxygen_pci_pm;
+#endif
+void oxygen_pci_shutdown(struct pci_dev *pci);
+
+/* oxygen_mixer.c */
+
+int oxygen_mixer_init(struct oxygen *chip);
+void oxygen_update_dac_routing(struct oxygen *chip);
+void oxygen_update_spdif_source(struct oxygen *chip);
+
+/* oxygen_pcm.c */
+
+int oxygen_pcm_init(struct oxygen *chip);
+
+/* oxygen_io.c */
+
+u8 oxygen_read8(struct oxygen *chip, unsigned int reg);
+u16 oxygen_read16(struct oxygen *chip, unsigned int reg);
+u32 oxygen_read32(struct oxygen *chip, unsigned int reg);
+void oxygen_write8(struct oxygen *chip, unsigned int reg, u8 value);
+void oxygen_write16(struct oxygen *chip, unsigned int reg, u16 value);
+void oxygen_write32(struct oxygen *chip, unsigned int reg, u32 value);
+void oxygen_write8_masked(struct oxygen *chip, unsigned int reg,
+			  u8 value, u8 mask);
+void oxygen_write16_masked(struct oxygen *chip, unsigned int reg,
+			   u16 value, u16 mask);
+void oxygen_write32_masked(struct oxygen *chip, unsigned int reg,
+			   u32 value, u32 mask);
+
+u16 oxygen_read_ac97(struct oxygen *chip, unsigned int codec,
+		     unsigned int index);
+void oxygen_write_ac97(struct oxygen *chip, unsigned int codec,
+		       unsigned int index, u16 data);
+void oxygen_write_ac97_masked(struct oxygen *chip, unsigned int codec,
+			      unsigned int index, u16 data, u16 mask);
+
+int oxygen_write_spi(struct oxygen *chip, u8 control, unsigned int data);
+void oxygen_write_i2c(struct oxygen *chip, u8 device, u8 map, u8 data);
+
+void oxygen_reset_uart(struct oxygen *chip);
+void oxygen_write_uart(struct oxygen *chip, u8 data);
+
+u16 oxygen_read_eeprom(struct oxygen *chip, unsigned int index);
+void oxygen_write_eeprom(struct oxygen *chip, unsigned int index, u16 value);
+
+static inline void oxygen_set_bits8(struct oxygen *chip,
+				    unsigned int reg, u8 value)
+{
+	oxygen_write8_masked(chip, reg, value, value);
+}
+
+static inline void oxygen_set_bits16(struct oxygen *chip,
+				     unsigned int reg, u16 value)
+{
+	oxygen_write16_masked(chip, reg, value, value);
+}
+
+static inline void oxygen_set_bits32(struct oxygen *chip,
+				     unsigned int reg, u32 value)
+{
+	oxygen_write32_masked(chip, reg, value, value);
+}
+
+static inline void oxygen_clear_bits8(struct oxygen *chip,
+				      unsigned int reg, u8 value)
+{
+	oxygen_write8_masked(chip, reg, 0, value);
+}
+
+static inline void oxygen_clear_bits16(struct oxygen *chip,
+				       unsigned int reg, u16 value)
+{
+	oxygen_write16_masked(chip, reg, 0, value);
+}
+
+static inline void oxygen_clear_bits32(struct oxygen *chip,
+				       unsigned int reg, u32 value)
+{
+	oxygen_write32_masked(chip, reg, 0, value);
+}
+
+static inline void oxygen_ac97_set_bits(struct oxygen *chip, unsigned int codec,
+					unsigned int index, u16 value)
+{
+	oxygen_write_ac97_masked(chip, codec, index, value, value);
+}
+
+static inline void oxygen_ac97_clear_bits(struct oxygen *chip,
+					  unsigned int codec,
+					  unsigned int index, u16 value)
+{
+	oxygen_write_ac97_masked(chip, codec, index, 0, value);
+}
+
+#endif