Linux-libre 4.7.1-gnupck-4.7.1-gnu

1 files changed, 158 insertions, 0 deletions

diff --git a/drivers/media/pci/tw686x/tw686x.h b/drivers/media/pci/tw686x/tw686x.h
new file mode 100644
index 000000000..44b5755ac
--- /dev/null
+++ b/drivers/media/pci/tw686x/tw686x.h
@@ -0,0 +1,158 @@
+/*
+ * Copyright (C) 2015 VanguardiaSur - www.vanguardiasur.com.ar
+ *
+ * Copyright (C) 2015 Industrial Research Institute for Automation
+ * and Measurements PIAP
+ * Written by Krzysztof Ha?asa
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License
+ * as published by the Free Software Foundation.
+ */
+
+#include <linux/mutex.h>
+#include <linux/pci.h>
+#include <linux/timer.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include <media/videobuf2-v4l2.h>
+#include <sound/pcm.h>
+
+#include "tw686x-regs.h"
+
+#define TYPE_MAX_CHANNELS	0x0f
+#define TYPE_SECOND_GEN		0x10
+#define TW686X_DEF_PHASE_REF	0x1518
+
+#define TW686X_FIELD_MODE	0x3
+#define TW686X_FRAME_MODE	0x2
+/* 0x1 is reserved */
+#define TW686X_SG_MODE		0x0
+
+#define TW686X_AUDIO_PAGE_SZ		4096
+#define TW686X_AUDIO_PAGE_MAX		16
+#define TW686X_AUDIO_PERIODS_MIN	2
+#define TW686X_AUDIO_PERIODS_MAX	TW686X_AUDIO_PAGE_MAX
+
+struct tw686x_format {
+	char *name;
+	unsigned int fourcc;
+	unsigned int depth;
+	unsigned int mode;
+};
+
+struct tw686x_dma_desc {
+	dma_addr_t phys;
+	void *virt;
+	unsigned int size;
+};
+
+struct tw686x_audio_buf {
+	dma_addr_t dma;
+	void *virt;
+	struct list_head list;
+};
+
+struct tw686x_v4l2_buf {
+	struct vb2_v4l2_buffer vb;
+	struct list_head list;
+};
+
+struct tw686x_audio_channel {
+	struct tw686x_dev *dev;
+	struct snd_pcm_substream *ss;
+	unsigned int ch;
+	struct tw686x_audio_buf *curr_bufs[2];
+	struct tw686x_dma_desc dma_descs[2];
+	dma_addr_t ptr;
+
+	struct tw686x_audio_buf buf[TW686X_AUDIO_PAGE_MAX];
+	struct list_head buf_list;
+	spinlock_t lock;
+};
+
+struct tw686x_video_channel {
+	struct tw686x_dev *dev;
+
+	struct vb2_queue vidq;
+	struct list_head vidq_queued;
+	struct video_device *device;
+	struct tw686x_v4l2_buf *curr_bufs[2];
+	struct tw686x_dma_desc dma_descs[2];
+
+	struct v4l2_ctrl_handler ctrl_handler;
+	const struct tw686x_format *format;
+	struct mutex vb_mutex;
+	spinlock_t qlock;
+	v4l2_std_id video_standard;
+	unsigned int width, height;
+	unsigned int h_halve, v_halve;
+	unsigned int ch;
+	unsigned int num;
+	unsigned int fps;
+	unsigned int input;
+	unsigned int sequence;
+	unsigned int pb;
+	bool no_signal;
+};
+
+/**
+ * struct tw686x_dev - global device status
+ * @lock: spinlock controlling access to the
+ *        shared device registers (DMA enable/disable).
+ */
+struct tw686x_dev {
+	spinlock_t lock;
+
+	struct v4l2_device v4l2_dev;
+	struct snd_card *snd_card;
+
+	char name[32];
+	unsigned int type;
+	struct pci_dev *pci_dev;
+	__u32 __iomem *mmio;
+
+	void *alloc_ctx;
+
+	struct tw686x_video_channel *video_channels;
+	struct tw686x_audio_channel *audio_channels;
+
+	int audio_rate; /* per-device value */
+
+	struct timer_list dma_delay_timer;
+	u32 pending_dma_en; /* must be protected by lock */
+	u32 pending_dma_cmd; /* must be protected by lock */
+};
+
+static inline uint32_t reg_read(struct tw686x_dev *dev, unsigned int reg)
+{
+	return readl(dev->mmio + reg);
+}
+
+static inline void reg_write(struct tw686x_dev *dev, unsigned int reg,
+			     uint32_t value)
+{
+	writel(value, dev->mmio + reg);
+}
+
+static inline unsigned int max_channels(struct tw686x_dev *dev)
+{
+	return dev->type & TYPE_MAX_CHANNELS; /* 4 or 8 channels */
+}
+
+void tw686x_enable_channel(struct tw686x_dev *dev, unsigned int channel);
+void tw686x_disable_channel(struct tw686x_dev *dev, unsigned int channel);
+
+int tw686x_video_init(struct tw686x_dev *dev);
+void tw686x_video_free(struct tw686x_dev *dev);
+void tw686x_video_irq(struct tw686x_dev *dev, unsigned long requests,
+		      unsigned int pb_status, unsigned int fifo_status,
+		      unsigned int *reset_ch);
+
+int tw686x_audio_init(struct tw686x_dev *dev);
+void tw686x_audio_free(struct tw686x_dev *dev);
+void tw686x_audio_irq(struct tw686x_dev *dev, unsigned long requests,
+		      unsigned int pb_status);