/* * Copyright (C) 2008 Sensoray Company 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. */ #include #include #include #include #include #include #include #include #include "go7007-priv.h" MODULE_DESCRIPTION("Sensoray 2250/2251 i2c v4l2 subdev driver"); MODULE_LICENSE("GPL v2"); /* * Note: this board has two i2c devices: a vpx3226f and a tlv320aic23b. * Due to the unusual way these are accessed on this device we do not * reuse the i2c drivers, but instead they are implemented in this * driver. It would be nice to improve on this, though. */ #define TLV320_ADDRESS 0x34 #define VPX322_ADDR_ANALOGCONTROL1 0x02 #define VPX322_ADDR_BRIGHTNESS0 0x0127 #define VPX322_ADDR_BRIGHTNESS1 0x0131 #define VPX322_ADDR_CONTRAST0 0x0128 #define VPX322_ADDR_CONTRAST1 0x0132 #define VPX322_ADDR_HUE 0x00dc #define VPX322_ADDR_SAT 0x0030 struct go7007_usb_board { unsigned int flags; struct go7007_board_info main_info; }; struct go7007_usb { struct go7007_usb_board *board; struct mutex i2c_lock; struct usb_device *usbdev; struct urb *video_urbs[8]; struct urb *audio_urbs[8]; struct urb *intr_urb; }; static unsigned char aud_regs[] = { 0x1e, 0x00, 0x00, 0x17, 0x02, 0x17, 0x04, 0xf9, 0x06, 0xf9, 0x08, 0x02, 0x0a, 0x00, 0x0c, 0x00, 0x0a, 0x00, 0x0c, 0x00, 0x0e, 0x02, 0x10, 0x00, 0x12, 0x01, 0x00, 0x00, }; static unsigned char vid_regs[] = { 0xF2, 0x0f, 0xAA, 0x00, 0xF8, 0xff, 0x00, 0x00, }; static u16 vid_regs_fp[] = { 0x028, 0x067, 0x120, 0x016, 0x121, 0xcF2, 0x122, 0x0F2, 0x123, 0x00c, 0x124, 0x2d0, 0x125, 0x2e0, 0x126, 0x004, 0x128, 0x1E0, 0x12A, 0x016, 0x12B, 0x0F2, 0x12C, 0x0F2, 0x12D, 0x00c, 0x12E, 0x2d0, 0x12F, 0x2e0, 0x130, 0x004, 0x132, 0x1E0, 0x140, 0x060, 0x153, 0x00C, 0x154, 0x200, 0x150, 0x801, 0x000, 0x000 }; /* PAL specific values */ static u16 vid_regs_fp_pal[] = { 0x120, 0x017, 0x121, 0xd22, 0x122, 0x122, 0x12A, 0x017, 0x12B, 0x122, 0x12C, 0x122, 0x140, 0x060, 0x000, 0x000, }; struct s2250 { struct v4l2_subdev sd; struct v4l2_ctrl_handler hdl; v4l2_std_id std; int input; int brightness; int contrast; int saturation; int hue; int reg12b_val; int audio_input; struct i2c_client *audio; }; static inline struct s2250 *to_state(struct v4l2_subdev *sd) { return container_of(sd, struct s2250, sd); } /* from go7007-usb.c which is Copyright (C) 2005-2006 Micronas USA Inc.*/ static int go7007_usb_vendor_request(struct go7007 *go, u16 request, u16 value, u16 index, void *transfer_buffer, int length, int in) { struct go7007_usb *usb = go->hpi_context; int timeout = 5000; if (in) { return usb_control_msg(usb->usbdev, usb_rcvctrlpipe(usb->usbdev, 0), request, USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, value, index, transfer_buffer, length, timeout); } else { return usb_control_msg(usb->usbdev, usb_sndctrlpipe(usb->usbdev, 0), request, USB_TYPE_VENDOR | USB_RECIP_DEVICE, value, index, transfer_buffer, length, timeout); } } /* end from go7007-usb.c which is Copyright (C) 2005-2006 Micronas USA Inc.*/ static int write_reg(struct i2c_client *client, u8 reg, u8 value) { struct go7007 *go = i2c_get_adapdata(client->adapter); struct go7007_usb *usb; int rc; int dev_addr = client->addr << 1; /* firmware wants 8-bit address */ u8 *buf; if (go == NULL) return -ENODEV; if (go->status == STATUS_SHUTDOWN) return -EBUSY; buf = kzalloc(16, GFP_KERNEL); if (buf == NULL) return -ENOMEM; usb = go->hpi_context; if (mutex_lock_interruptible(&usb->i2c_lock) != 0) { dev_info(&client->dev, "i2c lock failed\n"); kfree(buf); return -EINTR; } rc = go7007_usb_vendor_request(go, 0x55, dev_addr, (reg<<8 | value), buf, 16, 1); mutex_unlock(&usb->i2c_lock); kfree(buf); return rc; } static int write_reg_fp(struct i2c_client *client, u16 addr, u16 val) { struct go7007 *go = i2c_get_adapdata(client->adapter); struct go7007_usb *usb; int rc; u8 *buf; struct s2250 *dec = i2c_get_clientdata(client); if (go == NULL) return -ENODEV; if (go->status == STATUS_SHUTDOWN) return -EBUSY; buf = kzalloc(16, GFP_KERNEL); if (buf == NULL) return -ENOMEM; memset(buf, 0xcd, 6); usb = go->hpi_context; if (mutex_lock_interruptible(&usb->i2c_lock) != 0) { dev_info(&client->dev, "i2c lock failed\n"); kfree(buf); return -EINTR; } rc = go7007_usb_vendor_request(go, 0x57, addr, val, buf, 16, 1); mutex_unlock(&usb->i2c_lock); if (rc < 0) { kfree(buf); return rc; } if (buf[0] == 0) { unsigned int subaddr, val_read; subaddr = (buf[4] << 8) + buf[5]; val_read = (buf[2] << 8) + buf[3]; kfree(buf); if (val_read != val) { dev_info(&client->dev, "invalid fp write %x %x\n", val_read, val); return -EFAULT; } if (subaddr != addr) { dev_info(&client->dev, "invalid fp write addr %x %x\n", subaddr, addr); return -EFAULT; } } else { kfree(buf); return -EFAULT; } /* save last 12b value */ if (addr == 0x12b) dec->reg12b_val = val; return 0; } static int read_reg_fp(struct i2c_client *client, u16 addr, u16 *val) { struct go7007 *go = i2c_get_adapdata(client->adapter); struct go7007_usb *usb; int rc; u8 *buf; if (go == NULL) return -ENODEV; if (go->status == STATUS_SHUTDOWN) return -EBUSY; buf = kzalloc(16, GFP_KERNEL); if (buf == NULL) return -ENOMEM; memset(buf, 0xcd, 6); usb = go->hpi_context; if (mutex_lock_interruptible(&usb->i2c_lock) != 0) { dev_info(&client->dev, "i2c lock failed\n"); kfree(buf); return -EINTR; } rc = go7007_usb_vendor_request(go, 0x58, addr, 0, buf, 16, 1); mutex_unlock(&usb->i2c_lock); if (rc < 0) { kfree(buf); return rc; } *val = (buf[0] << 8) | buf[1]; kfree(buf); return 0; } static int write_regs(struct i2c_client *client, u8 *regs) { int i; for (i = 0; !((regs[i] == 0x00) && (regs[i+1] == 0x00)); i += 2) { if (write_reg(client, regs[i], regs[i+1]) < 0) { dev_info(&client->dev, "failed\n"); return -1; } } return 0; } static int write_regs_fp(struct i2c_client *client, u16 *regs) { int i; for (i = 0; !((regs[i] == 0x00) && (regs[i+1] == 0x00)); i += 2) { if (write_reg_fp(client, regs[i], regs[i+1]) < 0) { dev_info(&client->dev, "failed fp\n"); return -1; } } return 0; } /* ------------------------------------------------------------------------- */ static int s2250_s_video_routing(struct v4l2_subdev *sd, u32 input, u32 output, u32 config) { struct s2250 *state = to_state(sd); struct i2c_client *client = v4l2_get_subdevdata(sd); int vidsys; vidsys = (state->std == V4L2_STD_NTSC) ? 0x01 : 0x00; if (input == 0) { /* composite */ write_reg_fp(client, 0x20, 0x020 | vidsys); write_reg_fp(client, 0x21, 0x662); write_reg_fp(client, 0x140, 0x060); } else if (input == 1) { /* S-Video */ write_reg_fp(client, 0x20, 0x040 | vidsys); write_reg_fp(client, 0x21, 0x666); write_reg_fp(client, 0x140, 0x060); } else { return -EINVAL; } state->input = input; return 0; } static int s2250_s_std(struct v4l2_subdev *sd, v4l2_std_id norm) { struct s2250 *state = to_state(sd); struct i2c_client *client = v4l2_get_subdevdata(sd); u16 vidsource; vidsource = (state->input == 1) ? 0x040 : 0x020; if (norm & V4L2_STD_625_50) { write_regs_fp(client, vid_regs_fp); write_regs_fp(client, vid_regs_fp_pal); write_reg_fp(client, 0x20, vidsource); } else { write_regs_fp(client, vid_regs_fp); write_reg_fp(client, 0x20, vidsource | 1); } state->std = norm; return 0; } static int s2250_s_ctrl(struct v4l2_ctrl *ctrl) { struct s2250 *state = container_of(ctrl->handler, struct s2250, hdl); struct i2c_client *client = v4l2_get_subdevdata(&state->sd); u16 oldvalue; switch (ctrl->id) { case V4L2_CID_BRIGHTNESS: read_reg_fp(client, VPX322_ADDR_BRIGHTNESS0, &oldvalue); write_reg_fp(client, VPX322_ADDR_BRIGHTNESS0, ctrl->val | (oldvalue & ~0xff)); read_reg_fp(client, VPX322_ADDR_BRIGHTNESS1, &oldvalue); write_reg_fp(client, VPX322_ADDR_BRIGHTNESS1, ctrl->val | (oldvalue & ~0xff)); write_reg_fp(client, 0x140, 0x60); break; case V4L2_CID_CONTRAST: read_reg_fp(client, VPX322_ADDR_CONTRAST0, &oldvalue); write_reg_fp(client, VPX322_ADDR_CONTRAST0, ctrl->val | (oldvalue & ~0x3f)); read_reg_fp(client, VPX322_ADDR_CONTRAST1, &oldvalue); write_reg_fp(client, VPX322_ADDR_CONTRAST1, ctrl->val | (oldvalue & ~0x3f)); write_reg_fp(client, 0x140, 0x60); break; 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; default: return -EINVAL; } return 0; } 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(adapter, TLV320_ADDRESS >> 1); if (audio == NULL) return -ENOMEM; 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)); 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);