// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (C) 2008 Sensoray Company Inc.
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*/
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#include <linux/module.h>
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#include <linux/usb.h>
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#include <linux/i2c.h>
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#include <linux/videodev2.h>
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#include <linux/slab.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-common.h>
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#include <media/v4l2-subdev.h>
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#include "go7007-priv.h"
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MODULE_DESCRIPTION("Sensoray 2250/2251 i2c v4l2 subdev driver");
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MODULE_LICENSE("GPL v2");
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/*
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* Note: this board has two i2c devices: a vpx3226f and a tlv320aic23b.
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* Due to the unusual way these are accessed on this device we do not
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* reuse the i2c drivers, but instead they are implemented in this
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* driver. It would be nice to improve on this, though.
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*/
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#define TLV320_ADDRESS 0x34
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#define VPX322_ADDR_ANALOGCONTROL1 0x02
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#define VPX322_ADDR_BRIGHTNESS0 0x0127
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#define VPX322_ADDR_BRIGHTNESS1 0x0131
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#define VPX322_ADDR_CONTRAST0 0x0128
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#define VPX322_ADDR_CONTRAST1 0x0132
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#define VPX322_ADDR_HUE 0x00dc
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#define VPX322_ADDR_SAT 0x0030
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struct go7007_usb_board {
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unsigned int flags;
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struct go7007_board_info main_info;
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};
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struct go7007_usb {
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struct go7007_usb_board *board;
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struct mutex i2c_lock;
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struct usb_device *usbdev;
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struct urb *video_urbs[8];
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struct urb *audio_urbs[8];
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struct urb *intr_urb;
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};
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static unsigned char aud_regs[] = {
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0x1e, 0x00,
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0x00, 0x17,
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0x02, 0x17,
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0x04, 0xf9,
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0x06, 0xf9,
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0x08, 0x02,
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0x0a, 0x00,
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0x0c, 0x00,
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0x0a, 0x00,
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0x0c, 0x00,
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0x0e, 0x02,
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0x10, 0x00,
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0x12, 0x01,
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0x00, 0x00,
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};
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|
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static unsigned char vid_regs[] = {
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0xF2, 0x0f,
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0xAA, 0x00,
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0xF8, 0xff,
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0x00, 0x00,
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};
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static u16 vid_regs_fp[] = {
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0x028, 0x067,
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0x120, 0x016,
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0x121, 0xcF2,
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0x122, 0x0F2,
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0x123, 0x00c,
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0x124, 0x2d0,
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0x125, 0x2e0,
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0x126, 0x004,
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0x128, 0x1E0,
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0x12A, 0x016,
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0x12B, 0x0F2,
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0x12C, 0x0F2,
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0x12D, 0x00c,
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0x12E, 0x2d0,
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0x12F, 0x2e0,
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0x130, 0x004,
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0x132, 0x1E0,
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0x140, 0x060,
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0x153, 0x00C,
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0x154, 0x200,
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0x150, 0x801,
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0x000, 0x000
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};
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/* PAL specific values */
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static u16 vid_regs_fp_pal[] = {
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0x120, 0x017,
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0x121, 0xd22,
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0x122, 0x122,
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0x12A, 0x017,
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0x12B, 0x122,
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0x12C, 0x122,
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0x140, 0x060,
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0x000, 0x000,
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};
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struct s2250 {
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struct v4l2_subdev sd;
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struct v4l2_ctrl_handler hdl;
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v4l2_std_id std;
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int input;
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int brightness;
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int contrast;
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int saturation;
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int hue;
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int reg12b_val;
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int audio_input;
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struct i2c_client *audio;
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};
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static inline struct s2250 *to_state(struct v4l2_subdev *sd)
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{
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return container_of(sd, struct s2250, sd);
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}
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/* from go7007-usb.c which is Copyright (C) 2005-2006 Micronas USA Inc.*/
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static int go7007_usb_vendor_request(struct go7007 *go, u16 request,
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u16 value, u16 index, void *transfer_buffer, int length, int in)
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{
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struct go7007_usb *usb = go->hpi_context;
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int timeout = 5000;
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if (in) {
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return usb_control_msg(usb->usbdev,
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usb_rcvctrlpipe(usb->usbdev, 0), request,
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USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
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value, index, transfer_buffer, length, timeout);
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} else {
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return usb_control_msg(usb->usbdev,
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usb_sndctrlpipe(usb->usbdev, 0), request,
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USB_TYPE_VENDOR | USB_RECIP_DEVICE,
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value, index, transfer_buffer, length, timeout);
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}
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}
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/* end from go7007-usb.c which is Copyright (C) 2005-2006 Micronas USA Inc.*/
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static int write_reg(struct i2c_client *client, u8 reg, u8 value)
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{
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struct go7007 *go = i2c_get_adapdata(client->adapter);
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struct go7007_usb *usb;
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int rc;
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int dev_addr = client->addr << 1; /* firmware wants 8-bit address */
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u8 *buf;
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if (go == NULL)
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return -ENODEV;
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if (go->status == STATUS_SHUTDOWN)
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return -EBUSY;
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buf = kzalloc(16, GFP_KERNEL);
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if (buf == NULL)
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return -ENOMEM;
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usb = go->hpi_context;
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if (mutex_lock_interruptible(&usb->i2c_lock) != 0) {
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dev_info(&client->dev, "i2c lock failed\n");
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kfree(buf);
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return -EINTR;
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}
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rc = go7007_usb_vendor_request(go, 0x55, dev_addr,
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(reg<<8 | value),
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buf,
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16, 1);
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mutex_unlock(&usb->i2c_lock);
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kfree(buf);
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return rc;
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}
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static int write_reg_fp(struct i2c_client *client, u16 addr, u16 val)
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{
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struct go7007 *go = i2c_get_adapdata(client->adapter);
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struct go7007_usb *usb;
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int rc;
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u8 *buf;
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struct s2250 *dec = i2c_get_clientdata(client);
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if (go == NULL)
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return -ENODEV;
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if (go->status == STATUS_SHUTDOWN)
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return -EBUSY;
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buf = kzalloc(16, GFP_KERNEL);
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if (buf == NULL)
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return -ENOMEM;
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memset(buf, 0xcd, 6);
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usb = go->hpi_context;
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if (mutex_lock_interruptible(&usb->i2c_lock) != 0) {
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dev_info(&client->dev, "i2c lock failed\n");
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kfree(buf);
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return -EINTR;
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}
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rc = go7007_usb_vendor_request(go, 0x57, addr, val, buf, 16, 1);
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mutex_unlock(&usb->i2c_lock);
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if (rc < 0) {
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kfree(buf);
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return rc;
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}
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if (buf[0] == 0) {
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unsigned int subaddr, val_read;
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subaddr = (buf[4] << 8) + buf[5];
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val_read = (buf[2] << 8) + buf[3];
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kfree(buf);
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if (val_read != val) {
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dev_info(&client->dev, "invalid fp write %x %x\n",
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val_read, val);
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return -EFAULT;
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}
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if (subaddr != addr) {
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dev_info(&client->dev, "invalid fp write addr %x %x\n",
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subaddr, addr);
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return -EFAULT;
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}
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} else {
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kfree(buf);
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return -EFAULT;
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}
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/* save last 12b value */
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if (addr == 0x12b)
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dec->reg12b_val = val;
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return 0;
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}
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static int read_reg_fp(struct i2c_client *client, u16 addr, u16 *val)
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{
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struct go7007 *go = i2c_get_adapdata(client->adapter);
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struct go7007_usb *usb;
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int rc;
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u8 *buf;
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if (go == NULL)
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return -ENODEV;
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if (go->status == STATUS_SHUTDOWN)
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return -EBUSY;
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buf = kzalloc(16, GFP_KERNEL);
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if (buf == NULL)
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return -ENOMEM;
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|
|
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memset(buf, 0xcd, 6);
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usb = go->hpi_context;
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if (mutex_lock_interruptible(&usb->i2c_lock) != 0) {
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dev_info(&client->dev, "i2c lock failed\n");
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kfree(buf);
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return -EINTR;
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}
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rc = go7007_usb_vendor_request(go, 0x58, addr, 0, buf, 16, 1);
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mutex_unlock(&usb->i2c_lock);
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if (rc < 0) {
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kfree(buf);
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return rc;
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}
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*val = (buf[0] << 8) | buf[1];
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kfree(buf);
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return 0;
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}
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static int write_regs(struct i2c_client *client, u8 *regs)
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{
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int i;
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for (i = 0; !((regs[i] == 0x00) && (regs[i+1] == 0x00)); i += 2) {
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if (write_reg(client, regs[i], regs[i+1]) < 0) {
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dev_info(&client->dev, "failed\n");
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return -1;
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}
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}
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return 0;
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}
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static int write_regs_fp(struct i2c_client *client, u16 *regs)
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{
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int i;
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for (i = 0; !((regs[i] == 0x00) && (regs[i+1] == 0x00)); i += 2) {
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if (write_reg_fp(client, regs[i], regs[i+1]) < 0) {
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dev_info(&client->dev, "failed fp\n");
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return -1;
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}
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}
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return 0;
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}
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/* ------------------------------------------------------------------------- */
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static int s2250_s_video_routing(struct v4l2_subdev *sd, u32 input, u32 output,
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u32 config)
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{
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struct s2250 *state = to_state(sd);
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struct i2c_client *client = v4l2_get_subdevdata(sd);
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int vidsys;
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vidsys = (state->std == V4L2_STD_NTSC) ? 0x01 : 0x00;
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if (input == 0) {
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/* composite */
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write_reg_fp(client, 0x20, 0x020 | vidsys);
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write_reg_fp(client, 0x21, 0x662);
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write_reg_fp(client, 0x140, 0x060);
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} else if (input == 1) {
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/* S-Video */
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write_reg_fp(client, 0x20, 0x040 | vidsys);
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write_reg_fp(client, 0x21, 0x666);
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write_reg_fp(client, 0x140, 0x060);
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} else {
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return -EINVAL;
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}
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state->input = input;
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return 0;
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}
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static int s2250_s_std(struct v4l2_subdev *sd, v4l2_std_id norm)
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{
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struct s2250 *state = to_state(sd);
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struct i2c_client *client = v4l2_get_subdevdata(sd);
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u16 vidsource;
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vidsource = (state->input == 1) ? 0x040 : 0x020;
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if (norm & V4L2_STD_625_50) {
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write_regs_fp(client, vid_regs_fp);
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write_regs_fp(client, vid_regs_fp_pal);
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write_reg_fp(client, 0x20, vidsource);
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} else {
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write_regs_fp(client, vid_regs_fp);
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write_reg_fp(client, 0x20, vidsource | 1);
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}
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state->std = norm;
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return 0;
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}
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static int s2250_s_ctrl(struct v4l2_ctrl *ctrl)
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{
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struct s2250 *state = container_of(ctrl->handler, struct s2250, hdl);
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struct i2c_client *client = v4l2_get_subdevdata(&state->sd);
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u16 oldvalue;
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switch (ctrl->id) {
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case V4L2_CID_BRIGHTNESS:
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read_reg_fp(client, VPX322_ADDR_BRIGHTNESS0, &oldvalue);
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write_reg_fp(client, VPX322_ADDR_BRIGHTNESS0,
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ctrl->val | (oldvalue & ~0xff));
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read_reg_fp(client, VPX322_ADDR_BRIGHTNESS1, &oldvalue);
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write_reg_fp(client, VPX322_ADDR_BRIGHTNESS1,
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ctrl->val | (oldvalue & ~0xff));
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write_reg_fp(client, 0x140, 0x60);
|
break;
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case V4L2_CID_CONTRAST:
|
read_reg_fp(client, VPX322_ADDR_CONTRAST0, &oldvalue);
|
write_reg_fp(client, VPX322_ADDR_CONTRAST0,
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ctrl->val | (oldvalue & ~0x3f));
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read_reg_fp(client, VPX322_ADDR_CONTRAST1, &oldvalue);
|
write_reg_fp(client, VPX322_ADDR_CONTRAST1,
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ctrl->val | (oldvalue & ~0x3f));
|
write_reg_fp(client, 0x140, 0x60);
|
break;
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case V4L2_CID_SATURATION:
|
write_reg_fp(client, VPX322_ADDR_SAT, ctrl->val);
|
break;
|
case V4L2_CID_HUE:
|
write_reg_fp(client, VPX322_ADDR_HUE, ctrl->val);
|
break;
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default:
|
return -EINVAL;
|
}
|
return 0;
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}
|
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static int s2250_set_fmt(struct v4l2_subdev *sd,
|
struct v4l2_subdev_pad_config *cfg,
|
struct v4l2_subdev_format *format)
|
{
|
struct v4l2_mbus_framefmt *fmt = &format->format;
|
struct s2250 *state = to_state(sd);
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
if (format->pad)
|
return -EINVAL;
|
|
if (format->which == V4L2_SUBDEV_FORMAT_TRY)
|
return 0;
|
|
if (fmt->height < 640) {
|
write_reg_fp(client, 0x12b, state->reg12b_val | 0x400);
|
write_reg_fp(client, 0x140, 0x060);
|
} else {
|
write_reg_fp(client, 0x12b, state->reg12b_val & ~0x400);
|
write_reg_fp(client, 0x140, 0x060);
|
}
|
return 0;
|
}
|
|
static int s2250_s_audio_routing(struct v4l2_subdev *sd, u32 input, u32 output,
|
u32 config)
|
{
|
struct s2250 *state = to_state(sd);
|
|
switch (input) {
|
case 0:
|
write_reg(state->audio, 0x08, 0x02); /* Line In */
|
break;
|
case 1:
|
write_reg(state->audio, 0x08, 0x04); /* Mic */
|
break;
|
case 2:
|
write_reg(state->audio, 0x08, 0x05); /* Mic Boost */
|
break;
|
default:
|
return -EINVAL;
|
}
|
state->audio_input = input;
|
return 0;
|
}
|
|
|
static int s2250_log_status(struct v4l2_subdev *sd)
|
{
|
struct s2250 *state = to_state(sd);
|
|
v4l2_info(sd, "Standard: %s\n", state->std == V4L2_STD_NTSC ? "NTSC" :
|
state->std == V4L2_STD_PAL ? "PAL" :
|
state->std == V4L2_STD_SECAM ? "SECAM" :
|
"unknown");
|
v4l2_info(sd, "Input: %s\n", state->input == 0 ? "Composite" :
|
state->input == 1 ? "S-video" :
|
"error");
|
v4l2_info(sd, "Audio input: %s\n", state->audio_input == 0 ? "Line In" :
|
state->audio_input == 1 ? "Mic" :
|
state->audio_input == 2 ? "Mic Boost" :
|
"error");
|
return v4l2_ctrl_subdev_log_status(sd);
|
}
|
|
/* --------------------------------------------------------------------------*/
|
|
static const struct v4l2_ctrl_ops s2250_ctrl_ops = {
|
.s_ctrl = s2250_s_ctrl,
|
};
|
|
static const struct v4l2_subdev_core_ops s2250_core_ops = {
|
.log_status = s2250_log_status,
|
};
|
|
static const struct v4l2_subdev_audio_ops s2250_audio_ops = {
|
.s_routing = s2250_s_audio_routing,
|
};
|
|
static const struct v4l2_subdev_video_ops s2250_video_ops = {
|
.s_std = s2250_s_std,
|
.s_routing = s2250_s_video_routing,
|
};
|
|
static const struct v4l2_subdev_pad_ops s2250_pad_ops = {
|
.set_fmt = s2250_set_fmt,
|
};
|
|
static const struct v4l2_subdev_ops s2250_ops = {
|
.core = &s2250_core_ops,
|
.audio = &s2250_audio_ops,
|
.video = &s2250_video_ops,
|
.pad = &s2250_pad_ops,
|
};
|
|
/* --------------------------------------------------------------------------*/
|
|
static int s2250_probe(struct i2c_client *client,
|
const struct i2c_device_id *id)
|
{
|
struct i2c_client *audio;
|
struct i2c_adapter *adapter = client->adapter;
|
struct s2250 *state;
|
struct v4l2_subdev *sd;
|
u8 *data;
|
struct go7007 *go = i2c_get_adapdata(adapter);
|
struct go7007_usb *usb = go->hpi_context;
|
int err = -EIO;
|
|
audio = i2c_new_dummy_device(adapter, TLV320_ADDRESS >> 1);
|
if (IS_ERR(audio))
|
return PTR_ERR(audio);
|
|
state = kzalloc(sizeof(struct s2250), GFP_KERNEL);
|
if (state == NULL) {
|
i2c_unregister_device(audio);
|
return -ENOMEM;
|
}
|
|
sd = &state->sd;
|
v4l2_i2c_subdev_init(sd, client, &s2250_ops);
|
|
v4l2_info(sd, "initializing %s at address 0x%x on %s\n",
|
"Sensoray 2250/2251", client->addr, client->adapter->name);
|
|
v4l2_ctrl_handler_init(&state->hdl, 4);
|
v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops,
|
V4L2_CID_BRIGHTNESS, -128, 127, 1, 0);
|
v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops,
|
V4L2_CID_CONTRAST, 0, 0x3f, 1, 0x32);
|
v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops,
|
V4L2_CID_SATURATION, 0, 4094, 1, 2070);
|
v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops,
|
V4L2_CID_HUE, -512, 511, 1, 0);
|
sd->ctrl_handler = &state->hdl;
|
if (state->hdl.error) {
|
err = state->hdl.error;
|
goto fail;
|
}
|
|
state->std = V4L2_STD_NTSC;
|
state->brightness = 50;
|
state->contrast = 50;
|
state->saturation = 50;
|
state->hue = 0;
|
state->audio = audio;
|
|
/* initialize the audio */
|
if (write_regs(audio, aud_regs) < 0) {
|
dev_err(&client->dev, "error initializing audio\n");
|
goto fail;
|
}
|
|
if (write_regs(client, vid_regs) < 0) {
|
dev_err(&client->dev, "error initializing decoder\n");
|
goto fail;
|
}
|
if (write_regs_fp(client, vid_regs_fp) < 0) {
|
dev_err(&client->dev, "error initializing decoder\n");
|
goto fail;
|
}
|
/* set default channel */
|
/* composite */
|
write_reg_fp(client, 0x20, 0x020 | 1);
|
write_reg_fp(client, 0x21, 0x662);
|
write_reg_fp(client, 0x140, 0x060);
|
|
/* set default audio input */
|
state->audio_input = 0;
|
write_reg(client, 0x08, 0x02); /* Line In */
|
|
if (mutex_lock_interruptible(&usb->i2c_lock) == 0) {
|
data = kzalloc(16, GFP_KERNEL);
|
if (data != NULL) {
|
int rc = go7007_usb_vendor_request(go, 0x41, 0, 0,
|
data, 16, 1);
|
|
if (rc > 0) {
|
u8 mask;
|
|
data[0] = 0;
|
mask = 1<<5;
|
data[0] &= ~mask;
|
data[1] |= mask;
|
go7007_usb_vendor_request(go, 0x40, 0,
|
(data[1]<<8)
|
+ data[1],
|
data, 16, 0);
|
}
|
kfree(data);
|
}
|
mutex_unlock(&usb->i2c_lock);
|
}
|
|
v4l2_info(sd, "initialized successfully\n");
|
return 0;
|
|
fail:
|
i2c_unregister_device(audio);
|
v4l2_ctrl_handler_free(&state->hdl);
|
kfree(state);
|
return err;
|
}
|
|
static int s2250_remove(struct i2c_client *client)
|
{
|
struct s2250 *state = to_state(i2c_get_clientdata(client));
|
|
i2c_unregister_device(state->audio);
|
v4l2_device_unregister_subdev(&state->sd);
|
v4l2_ctrl_handler_free(&state->hdl);
|
kfree(state);
|
return 0;
|
}
|
|
static const struct i2c_device_id s2250_id[] = {
|
{ "s2250", 0 },
|
{ }
|
};
|
MODULE_DEVICE_TABLE(i2c, s2250_id);
|
|
static struct i2c_driver s2250_driver = {
|
.driver = {
|
.name = "s2250",
|
},
|
.probe = s2250_probe,
|
.remove = s2250_remove,
|
.id_table = s2250_id,
|
};
|
|
module_i2c_driver(s2250_driver);
|
