Staging: solo6x10: New driver (staging) for Softlogic 6x10

This driver supports Softlogic 6x10 based codec cards

Signed-off-by: Ben Collins <bcollins@bluecherry.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 316 insertions, 0 deletions

diff --git a/drivers/staging/solo6x10/solo6010.h b/drivers/staging/solo6x10/solo6010.h
new file mode 100644
index 000000000000..1c913d590e51
--- /dev/null
+++ b/drivers/staging/solo6x10/solo6010.h
@@ -0,0 +1,316 @@
+/*
+ * Copyright (C) 2010 Bluecherry, LLC www.bluecherrydvr.com
+ * Copyright (C) 2010 Ben Collins <bcollins@bluecherry.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __SOLO6010_H
+#define __SOLO6010_H
+
+#include <linux/version.h>
+#include <linux/pci.h>
+#include <linux/i2c.h>
+#include <linux/semaphore.h>
+#include <linux/mutex.h>
+#include <linux/list.h>
+#include <linux/wait.h>
+#include <asm/io.h>
+#include <asm/atomic.h>
+
+#include <linux/videodev2.h>
+#include <media/v4l2-dev.h>
+#include <media/videobuf-core.h>
+
+#include "solo6010-registers.h"
+
+#ifndef PCI_VENDOR_ID_SOFTLOGIC
+#define PCI_VENDOR_ID_SOFTLOGIC		0x9413
+#define PCI_DEVICE_ID_SOLO6010		0x6010
+#endif
+
+#ifndef PCI_VENDOR_ID_BLUECHERRY
+#define PCI_VENDOR_ID_BLUECHERRY	0x1BB3
+/* Neugent Softlogic 6010 based cards */
+#define PCI_DEVICE_ID_NEUSOLO_4		0x4304
+#define PCI_DEVICE_ID_NEUSOLO_9		0x4309
+#define PCI_DEVICE_ID_NEUSOLO_16	0x4310
+/* Commell Softlogic 6010 based cards */
+#define PCI_DEVICE_ID_COMMSOLO_4	0x4E04
+#define PCI_DEVICE_ID_COMMSOLO_9	0x4E09
+#define PCI_DEVICE_ID_COMMSOLO_16	0x4E10
+#endif /* Bluecherry */
+
+#define SOLO6010_NAME			"solo6010"
+
+#define SOLO_MAX_CHANNELS		16
+
+/* Make sure these two match */
+#define SOLO6010_VERSION		"2.0.0"
+#define SOLO6010_VER_MAJOR		2
+#define SOLO6010_VER_MINOR		0
+#define SOLO6010_VER_SUB		0
+#define SOLO6010_VER_NUM \
+    KERNEL_VERSION(SOLO6010_VER_MAJOR, SOLO6010_VER_MINOR, SOLO6010_VER_SUB)
+
+/*
+ * The SOLO6010 actually has 8 i2c channels, but we only use 2.
+ * 0 - Techwell chip(s)
+ * 1 - SAA7128
+ */
+#define SOLO_I2C_ADAPTERS		2
+#define SOLO_I2C_TW			0
+#define SOLO_I2C_SAA			1
+
+/* DMA Engine setup */
+#define SOLO_NR_P2M			4
+#define SOLO_NR_P2M_DESC		256
+#define SOLO_P2M_DESC_SIZE		(SOLO_NR_P2M_DESC * 16)
+/* MPEG and JPEG share the same interrupt and locks so they must be together
+ * in the same dma channel. */
+#define SOLO_P2M_DMA_ID_MP4E		0
+#define SOLO_P2M_DMA_ID_JPEG		0
+#define SOLO_P2M_DMA_ID_MP4D		1
+#define SOLO_P2M_DMA_ID_G723D		1
+#define SOLO_P2M_DMA_ID_DISP		2
+#define SOLO_P2M_DMA_ID_OSG		2
+#define SOLO_P2M_DMA_ID_G723E		3
+#define SOLO_P2M_DMA_ID_VIN		3
+
+/* Encoder standard modes */
+#define SOLO_ENC_MODE_CIF		2
+#define SOLO_ENC_MODE_HD1		1
+#define SOLO_ENC_MODE_D1		9
+
+#define SOLO_DEFAULT_GOP		30
+#define SOLO_DEFAULT_QP			3
+
+/* There is 8MB memory available for solo to buffer MPEG4 frames.
+ * This gives us 512 * 16kbyte queues. */
+#define SOLO_NR_RING_BUFS		512
+
+#define SOLO_CLOCK_MHZ			108
+
+#ifndef V4L2_BUF_FLAG_MOTION_ON
+#define V4L2_BUF_FLAG_MOTION_ON		0x0400
+#define V4L2_BUF_FLAG_MOTION_DETECTED	0x0800
+#endif
+#ifndef V4L2_CID_MOTION_ENABLE
+#define PRIVATE_CIDS
+#define V4L2_CID_MOTION_ENABLE		(V4L2_CID_PRIVATE_BASE+0)
+#define V4L2_CID_MOTION_THRESHOLD	(V4L2_CID_PRIVATE_BASE+1)
+#define V4L2_CID_MOTION_TRACE		(V4L2_CID_PRIVATE_BASE+2)
+#endif
+
+enum SOLO_I2C_STATE {
+	IIC_STATE_IDLE,
+	IIC_STATE_START,
+	IIC_STATE_READ,
+	IIC_STATE_WRITE,
+	IIC_STATE_STOP
+};
+
+struct solo_p2m_dev {
+	struct semaphore	sem;
+	struct completion	completion;
+	int			error;
+	u8			desc[SOLO_P2M_DESC_SIZE];
+};
+
+#define OSD_TEXT_MAX		30
+
+enum solo_enc_types {
+	SOLO_ENC_TYPE_STD,
+	SOLO_ENC_TYPE_EXT,
+};
+
+struct solo_enc_dev {
+	struct solo6010_dev	*solo_dev;
+	/* V4L2 Items */
+	struct video_device	*vfd;
+	/* General accounting */
+	wait_queue_head_t	thread_wait;
+	spinlock_t		lock;
+	atomic_t		readers;
+	u8			ch;
+	u8			mode, gop, qp, interlaced, interval;
+	u8			reset_gop;
+	u8			bw_weight;
+	u8			motion_detected;
+	u16			motion_thresh;
+	u16			width;
+	u16			height;
+	char			osd_text[OSD_TEXT_MAX + 1];
+};
+
+struct solo_enc_buf {
+	u8			vop;
+	u8			ch;
+	enum solo_enc_types	type;
+	u32			off;
+	u32			size;
+	u32			jpeg_off;
+	u32			jpeg_size;
+	struct timeval		ts;
+};
+
+/* The SOLO6010 PCI Device */
+struct solo6010_dev {
+	/* General stuff */
+	struct pci_dev		*pdev;
+	u8 __iomem		*reg_base;
+	int			nr_chans;
+	int			nr_ext;
+	u32			irq_mask;
+	u32			motion_mask;
+	spinlock_t		reg_io_lock;
+
+	/* tw28xx accounting */
+	u8			tw2864, tw2815;
+	u8			tw28_cnt;
+
+	/* i2c related items */
+	struct i2c_adapter	i2c_adap[SOLO_I2C_ADAPTERS];
+	enum SOLO_I2C_STATE	i2c_state;
+	struct semaphore	i2c_sem;
+	int			i2c_id;
+	wait_queue_head_t	i2c_wait;
+	struct i2c_msg		*i2c_msg;
+	unsigned int		i2c_msg_num;
+	unsigned int		i2c_msg_ptr;
+
+	/* P2M DMA Engine */
+	struct solo_p2m_dev	p2m_dev[SOLO_NR_P2M];
+
+	/* V4L2 Display items */
+	struct video_device	*vfd;
+	unsigned int		erasing;
+	unsigned int		frame_blank;
+	u8			cur_disp_ch;
+	wait_queue_head_t	disp_thread_wait;
+
+	/* V4L2 Encoder items */
+	struct solo_enc_dev	*v4l2_enc[SOLO_MAX_CHANNELS];
+	u16			enc_bw_remain;
+	/* IDX into hw mp4 encoder */
+	u8			enc_idx;
+	/* Our software ring of enc buf references */
+	u16			enc_wr_idx;
+	struct solo_enc_buf	enc_buf[SOLO_NR_RING_BUFS];
+
+	/* Current video settings */
+	u32 			video_type;
+	u16			video_hsize, video_vsize;
+	u16			vout_hstart, vout_vstart;
+	u16			vin_hstart, vin_vstart;
+	u8			fps;
+
+	/* Audio components */
+	struct snd_card		*snd_card;
+	struct snd_pcm		*snd_pcm;
+	atomic_t		snd_users;
+	int			g723_hw_idx;
+};
+
+static inline u32 solo_reg_read(struct solo6010_dev *solo_dev, int reg)
+{
+	unsigned long flags;
+	u32 ret;
+	u16 val;
+
+	spin_lock_irqsave(&solo_dev->reg_io_lock, flags);
+
+	ret = readl(solo_dev->reg_base + reg);
+	rmb();
+	pci_read_config_word(solo_dev->pdev, PCI_STATUS, &val);
+	rmb();
+
+	spin_unlock_irqrestore(&solo_dev->reg_io_lock, flags);
+
+	return ret;
+}
+
+static inline void solo_reg_write(struct solo6010_dev *solo_dev, int reg,
+				      u32 data)
+{
+	unsigned long flags;
+	u16 val;
+
+	spin_lock_irqsave(&solo_dev->reg_io_lock, flags);
+
+	writel(data, solo_dev->reg_base + reg);
+	wmb();
+	pci_read_config_word(solo_dev->pdev, PCI_STATUS, &val);
+	rmb();
+
+	spin_unlock_irqrestore(&solo_dev->reg_io_lock, flags);
+}
+
+void solo6010_irq_on(struct solo6010_dev *solo_dev, u32 mask);
+void solo6010_irq_off(struct solo6010_dev *solo_dev, u32 mask);
+
+/* Init/exit routeines for subsystems */
+int solo_disp_init(struct solo6010_dev *solo_dev);
+void solo_disp_exit(struct solo6010_dev *solo_dev);
+
+int solo_gpio_init(struct solo6010_dev *solo_dev);
+void solo_gpio_exit(struct solo6010_dev *solo_dev);
+
+int solo_i2c_init(struct solo6010_dev *solo_dev);
+void solo_i2c_exit(struct solo6010_dev *solo_dev);
+
+int solo_p2m_init(struct solo6010_dev *solo_dev);
+void solo_p2m_exit(struct solo6010_dev *solo_dev);
+
+int solo_v4l2_init(struct solo6010_dev *solo_dev);
+void solo_v4l2_exit(struct solo6010_dev *solo_dev);
+
+int solo_enc_init(struct solo6010_dev *solo_dev);
+void solo_enc_exit(struct solo6010_dev *solo_dev);
+
+int solo_enc_v4l2_init(struct solo6010_dev *solo_dev);
+void solo_enc_v4l2_exit(struct solo6010_dev *solo_dev);
+
+int solo_g723_init(struct solo6010_dev *solo_dev);
+void solo_g723_exit(struct solo6010_dev *solo_dev);
+
+/* ISR's */
+int solo_i2c_isr(struct solo6010_dev *solo_dev);
+void solo_p2m_isr(struct solo6010_dev *solo_dev, int id);
+void solo_p2m_error_isr(struct solo6010_dev *solo_dev, u32 status);
+void solo_enc_v4l2_isr(struct solo6010_dev *solo_dev);
+void solo_g723_isr(struct solo6010_dev *solo_dev);
+void solo_motion_isr(struct solo6010_dev *solo_dev);
+void solo_video_in_isr(struct solo6010_dev *solo_dev);
+
+/* i2c read/write */
+u8 solo_i2c_readbyte(struct solo6010_dev *solo_dev, int id, u8 addr, u8 off);
+void solo_i2c_writebyte(struct solo6010_dev *solo_dev, int id, u8 addr, u8 off,
+			u8 data);
+
+/* P2M DMA */
+int solo_p2m_dma_t(struct solo6010_dev *solo_dev, u8 id, int wr,
+		   dma_addr_t dma_addr, u32 ext_addr, u32 size);
+int solo_p2m_dma(struct solo6010_dev *solo_dev, u8 id, int wr,
+		 void *sys_addr, u32 ext_addr, u32 size);
+
+/* Set the threshold for motion detection */
+void solo_set_motion_threshold(struct solo6010_dev *solo_dev, u8 ch, u16 val);
+#define SOLO_DEF_MOT_THRESH		0x0300
+
+/* Write text on OSD */
+int solo_osd_print(struct solo_enc_dev *solo_enc);
+
+#endif /* __SOLO6010_H */