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path: root/drivers/media/video/gspca/stv06xx/stv06xx.c
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Diffstat (limited to 'drivers/media/video/gspca/stv06xx/stv06xx.c')
-rw-r--r--drivers/media/video/gspca/stv06xx/stv06xx.c634
1 files changed, 0 insertions, 634 deletions
diff --git a/drivers/media/video/gspca/stv06xx/stv06xx.c b/drivers/media/video/gspca/stv06xx/stv06xx.c
deleted file mode 100644
index 999ec77..0000000
--- a/drivers/media/video/gspca/stv06xx/stv06xx.c
+++ /dev/null
@@ -1,634 +0,0 @@
-/*
- * Copyright (c) 2001 Jean-Fredric Clere, Nikolas Zimmermann, Georg Acher
- * Mark Cave-Ayland, Carlo E Prelz, Dick Streefland
- * Copyright (c) 2002, 2003 Tuukka Toivonen
- * Copyright (c) 2008 Erik Andrén
- *
- * 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
- *
- * P/N 861037: Sensor HDCS1000 ASIC STV0600
- * P/N 861050-0010: Sensor HDCS1000 ASIC STV0600
- * P/N 861050-0020: Sensor Photobit PB100 ASIC STV0600-1 - QuickCam Express
- * P/N 861055: Sensor ST VV6410 ASIC STV0610 - LEGO cam
- * P/N 861075-0040: Sensor HDCS1000 ASIC
- * P/N 961179-0700: Sensor ST VV6410 ASIC STV0602 - Dexxa WebCam USB
- * P/N 861040-0000: Sensor ST VV6410 ASIC STV0610 - QuickCam Web
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/input.h>
-#include "stv06xx_sensor.h"
-
-MODULE_AUTHOR("Erik Andrén");
-MODULE_DESCRIPTION("STV06XX USB Camera Driver");
-MODULE_LICENSE("GPL");
-
-static bool dump_bridge;
-static bool dump_sensor;
-
-int stv06xx_write_bridge(struct sd *sd, u16 address, u16 i2c_data)
-{
- int err;
- struct usb_device *udev = sd->gspca_dev.dev;
- __u8 *buf = sd->gspca_dev.usb_buf;
- u8 len = (i2c_data > 0xff) ? 2 : 1;
-
- buf[0] = i2c_data & 0xff;
- buf[1] = (i2c_data >> 8) & 0xff;
-
- err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
- 0x04, 0x40, address, 0, buf, len,
- STV06XX_URB_MSG_TIMEOUT);
-
- PDEBUG(D_CONF, "Written 0x%x to address 0x%x, status: %d",
- i2c_data, address, err);
-
- return (err < 0) ? err : 0;
-}
-
-int stv06xx_read_bridge(struct sd *sd, u16 address, u8 *i2c_data)
-{
- int err;
- struct usb_device *udev = sd->gspca_dev.dev;
- __u8 *buf = sd->gspca_dev.usb_buf;
-
- err = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
- 0x04, 0xc0, address, 0, buf, 1,
- STV06XX_URB_MSG_TIMEOUT);
-
- *i2c_data = buf[0];
-
- PDEBUG(D_CONF, "Reading 0x%x from address 0x%x, status %d",
- *i2c_data, address, err);
-
- return (err < 0) ? err : 0;
-}
-
-/* Wraps the normal write sensor bytes / words functions for writing a
- single value */
-int stv06xx_write_sensor(struct sd *sd, u8 address, u16 value)
-{
- if (sd->sensor->i2c_len == 2) {
- u16 data[2] = { address, value };
- return stv06xx_write_sensor_words(sd, data, 1);
- } else {
- u8 data[2] = { address, value };
- return stv06xx_write_sensor_bytes(sd, data, 1);
- }
-}
-
-static int stv06xx_write_sensor_finish(struct sd *sd)
-{
- int err = 0;
-
- if (sd->bridge == BRIDGE_STV610) {
- struct usb_device *udev = sd->gspca_dev.dev;
- __u8 *buf = sd->gspca_dev.usb_buf;
-
- buf[0] = 0;
- err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
- 0x04, 0x40, 0x1704, 0, buf, 1,
- STV06XX_URB_MSG_TIMEOUT);
- }
-
- return (err < 0) ? err : 0;
-}
-
-int stv06xx_write_sensor_bytes(struct sd *sd, const u8 *data, u8 len)
-{
- int err, i, j;
- struct usb_device *udev = sd->gspca_dev.dev;
- __u8 *buf = sd->gspca_dev.usb_buf;
-
- PDEBUG(D_CONF, "I2C: Command buffer contains %d entries", len);
- for (i = 0; i < len;) {
- /* Build the command buffer */
- memset(buf, 0, I2C_BUFFER_LENGTH);
- for (j = 0; j < I2C_MAX_BYTES && i < len; j++, i++) {
- buf[j] = data[2*i];
- buf[0x10 + j] = data[2*i+1];
- PDEBUG(D_CONF, "I2C: Writing 0x%02x to reg 0x%02x",
- data[2*i+1], data[2*i]);
- }
- buf[0x20] = sd->sensor->i2c_addr;
- buf[0x21] = j - 1; /* Number of commands to send - 1 */
- buf[0x22] = I2C_WRITE_CMD;
- err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
- 0x04, 0x40, 0x0400, 0, buf,
- I2C_BUFFER_LENGTH,
- STV06XX_URB_MSG_TIMEOUT);
- if (err < 0)
- return err;
- }
- return stv06xx_write_sensor_finish(sd);
-}
-
-int stv06xx_write_sensor_words(struct sd *sd, const u16 *data, u8 len)
-{
- int err, i, j;
- struct usb_device *udev = sd->gspca_dev.dev;
- __u8 *buf = sd->gspca_dev.usb_buf;
-
- PDEBUG(D_CONF, "I2C: Command buffer contains %d entries", len);
-
- for (i = 0; i < len;) {
- /* Build the command buffer */
- memset(buf, 0, I2C_BUFFER_LENGTH);
- for (j = 0; j < I2C_MAX_WORDS && i < len; j++, i++) {
- buf[j] = data[2*i];
- buf[0x10 + j * 2] = data[2*i+1];
- buf[0x10 + j * 2 + 1] = data[2*i+1] >> 8;
- PDEBUG(D_CONF, "I2C: Writing 0x%04x to reg 0x%02x",
- data[2*i+1], data[2*i]);
- }
- buf[0x20] = sd->sensor->i2c_addr;
- buf[0x21] = j - 1; /* Number of commands to send - 1 */
- buf[0x22] = I2C_WRITE_CMD;
- err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
- 0x04, 0x40, 0x0400, 0, buf,
- I2C_BUFFER_LENGTH,
- STV06XX_URB_MSG_TIMEOUT);
- if (err < 0)
- return err;
- }
- return stv06xx_write_sensor_finish(sd);
-}
-
-int stv06xx_read_sensor(struct sd *sd, const u8 address, u16 *value)
-{
- int err;
- struct usb_device *udev = sd->gspca_dev.dev;
- __u8 *buf = sd->gspca_dev.usb_buf;
-
- err = stv06xx_write_bridge(sd, STV_I2C_FLUSH, sd->sensor->i2c_flush);
- if (err < 0)
- return err;
-
- /* Clear mem */
- memset(buf, 0, I2C_BUFFER_LENGTH);
-
- buf[0] = address;
- buf[0x20] = sd->sensor->i2c_addr;
- buf[0x21] = 0;
-
- /* Read I2C register */
- buf[0x22] = I2C_READ_CMD;
-
- err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
- 0x04, 0x40, 0x1400, 0, buf, I2C_BUFFER_LENGTH,
- STV06XX_URB_MSG_TIMEOUT);
- if (err < 0) {
- pr_err("I2C: Read error writing address: %d\n", err);
- return err;
- }
-
- err = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
- 0x04, 0xc0, 0x1410, 0, buf, sd->sensor->i2c_len,
- STV06XX_URB_MSG_TIMEOUT);
- if (sd->sensor->i2c_len == 2)
- *value = buf[0] | (buf[1] << 8);
- else
- *value = buf[0];
-
- PDEBUG(D_CONF, "I2C: Read 0x%x from address 0x%x, status: %d",
- *value, address, err);
-
- return (err < 0) ? err : 0;
-}
-
-/* Dumps all bridge registers */
-static void stv06xx_dump_bridge(struct sd *sd)
-{
- int i;
- u8 data, buf;
-
- pr_info("Dumping all stv06xx bridge registers\n");
- for (i = 0x1400; i < 0x160f; i++) {
- stv06xx_read_bridge(sd, i, &data);
-
- pr_info("Read 0x%x from address 0x%x\n", data, i);
- }
-
- pr_info("Testing stv06xx bridge registers for writability\n");
- for (i = 0x1400; i < 0x160f; i++) {
- stv06xx_read_bridge(sd, i, &data);
- buf = data;
-
- stv06xx_write_bridge(sd, i, 0xff);
- stv06xx_read_bridge(sd, i, &data);
- if (data == 0xff)
- pr_info("Register 0x%x is read/write\n", i);
- else if (data != buf)
- pr_info("Register 0x%x is read/write, but only partially\n",
- i);
- else
- pr_info("Register 0x%x is read-only\n", i);
-
- stv06xx_write_bridge(sd, i, buf);
- }
-}
-
-/* this function is called at probe and resume time */
-static int stv06xx_init(struct gspca_dev *gspca_dev)
-{
- struct sd *sd = (struct sd *) gspca_dev;
- int err;
-
- PDEBUG(D_PROBE, "Initializing camera");
-
- /* Let the usb init settle for a bit
- before performing the initialization */
- msleep(250);
-
- err = sd->sensor->init(sd);
-
- if (dump_sensor && sd->sensor->dump)
- sd->sensor->dump(sd);
-
- return (err < 0) ? err : 0;
-}
-
-/* this function is called at probe time */
-static int stv06xx_init_controls(struct gspca_dev *gspca_dev)
-{
- struct sd *sd = (struct sd *) gspca_dev;
-
- PDEBUG(D_PROBE, "Initializing controls");
-
- gspca_dev->vdev.ctrl_handler = &gspca_dev->ctrl_handler;
- return sd->sensor->init_controls(sd);
-}
-
-/* Start the camera */
-static int stv06xx_start(struct gspca_dev *gspca_dev)
-{
- struct sd *sd = (struct sd *) gspca_dev;
- struct usb_host_interface *alt;
- struct usb_interface *intf;
- int err, packet_size;
-
- intf = usb_ifnum_to_if(sd->gspca_dev.dev, sd->gspca_dev.iface);
- alt = usb_altnum_to_altsetting(intf, sd->gspca_dev.alt);
- if (!alt) {
- PDEBUG(D_ERR, "Couldn't get altsetting");
- return -EIO;
- }
-
- packet_size = le16_to_cpu(alt->endpoint[0].desc.wMaxPacketSize);
- err = stv06xx_write_bridge(sd, STV_ISO_SIZE_L, packet_size);
- if (err < 0)
- return err;
-
- /* Prepare the sensor for start */
- err = sd->sensor->start(sd);
- if (err < 0)
- goto out;
-
- /* Start isochronous streaming */
- err = stv06xx_write_bridge(sd, STV_ISO_ENABLE, 1);
-
-out:
- if (err < 0)
- PDEBUG(D_STREAM, "Starting stream failed");
- else
- PDEBUG(D_STREAM, "Started streaming");
-
- return (err < 0) ? err : 0;
-}
-
-static int stv06xx_isoc_init(struct gspca_dev *gspca_dev)
-{
- struct usb_host_interface *alt;
- struct sd *sd = (struct sd *) gspca_dev;
-
- /* Start isoc bandwidth "negotiation" at max isoc bandwidth */
- alt = &gspca_dev->dev->actconfig->intf_cache[0]->altsetting[1];
- alt->endpoint[0].desc.wMaxPacketSize =
- cpu_to_le16(sd->sensor->max_packet_size[gspca_dev->curr_mode]);
-
- return 0;
-}
-
-static int stv06xx_isoc_nego(struct gspca_dev *gspca_dev)
-{
- int ret, packet_size, min_packet_size;
- struct usb_host_interface *alt;
- struct sd *sd = (struct sd *) gspca_dev;
-
- alt = &gspca_dev->dev->actconfig->intf_cache[0]->altsetting[1];
- packet_size = le16_to_cpu(alt->endpoint[0].desc.wMaxPacketSize);
- min_packet_size = sd->sensor->min_packet_size[gspca_dev->curr_mode];
- if (packet_size <= min_packet_size)
- return -EIO;
-
- packet_size -= 100;
- if (packet_size < min_packet_size)
- packet_size = min_packet_size;
- alt->endpoint[0].desc.wMaxPacketSize = cpu_to_le16(packet_size);
-
- ret = usb_set_interface(gspca_dev->dev, gspca_dev->iface, 1);
- if (ret < 0)
- PDEBUG(D_ERR|D_STREAM, "set alt 1 err %d", ret);
-
- return ret;
-}
-
-static void stv06xx_stopN(struct gspca_dev *gspca_dev)
-{
- int err;
- struct sd *sd = (struct sd *) gspca_dev;
-
- /* stop ISO-streaming */
- err = stv06xx_write_bridge(sd, STV_ISO_ENABLE, 0);
- if (err < 0)
- goto out;
-
- err = sd->sensor->stop(sd);
-
-out:
- if (err < 0)
- PDEBUG(D_STREAM, "Failed to stop stream");
- else
- PDEBUG(D_STREAM, "Stopped streaming");
-}
-
-/*
- * Analyse an USB packet of the data stream and store it appropriately.
- * Each packet contains an integral number of chunks. Each chunk has
- * 2-bytes identification, followed by 2-bytes that describe the chunk
- * length. Known/guessed chunk identifications are:
- * 8001/8005/C001/C005 - Begin new frame
- * 8002/8006/C002/C006 - End frame
- * 0200/4200 - Contains actual image data, bayer or compressed
- * 0005 - 11 bytes of unknown data
- * 0100 - 2 bytes of unknown data
- * The 0005 and 0100 chunks seem to appear only in compressed stream.
- */
-static void stv06xx_pkt_scan(struct gspca_dev *gspca_dev,
- u8 *data, /* isoc packet */
- int len) /* iso packet length */
-{
- struct sd *sd = (struct sd *) gspca_dev;
-
- PDEBUG(D_PACK, "Packet of length %d arrived", len);
-
- /* A packet may contain several frames
- loop until the whole packet is reached */
- while (len) {
- int id, chunk_len;
-
- if (len < 4) {
- PDEBUG(D_PACK, "Packet is smaller than 4 bytes");
- return;
- }
-
- /* Capture the id */
- id = (data[0] << 8) | data[1];
-
- /* Capture the chunk length */
- chunk_len = (data[2] << 8) | data[3];
- PDEBUG(D_PACK, "Chunk id: %x, length: %d", id, chunk_len);
-
- data += 4;
- len -= 4;
-
- if (len < chunk_len) {
- PDEBUG(D_ERR, "URB packet length is smaller"
- " than the specified chunk length");
- gspca_dev->last_packet_type = DISCARD_PACKET;
- return;
- }
-
- /* First byte seem to be 02=data 2nd byte is unknown??? */
- if (sd->bridge == BRIDGE_ST6422 && (id & 0xff00) == 0x0200)
- goto frame_data;
-
- switch (id) {
- case 0x0200:
- case 0x4200:
-frame_data:
- PDEBUG(D_PACK, "Frame data packet detected");
-
- if (sd->to_skip) {
- int skip = (sd->to_skip < chunk_len) ?
- sd->to_skip : chunk_len;
- data += skip;
- len -= skip;
- chunk_len -= skip;
- sd->to_skip -= skip;
- }
-
- gspca_frame_add(gspca_dev, INTER_PACKET,
- data, chunk_len);
- break;
-
- case 0x8001:
- case 0x8005:
- case 0xc001:
- case 0xc005:
- PDEBUG(D_PACK, "Starting new frame");
-
- /* Create a new frame, chunk length should be zero */
- gspca_frame_add(gspca_dev, FIRST_PACKET,
- NULL, 0);
-
- if (sd->bridge == BRIDGE_ST6422)
- sd->to_skip = gspca_dev->width * 4;
-
- if (chunk_len)
- PDEBUG(D_ERR, "Chunk length is "
- "non-zero on a SOF");
- break;
-
- case 0x8002:
- case 0x8006:
- case 0xc002:
- PDEBUG(D_PACK, "End of frame detected");
-
- /* Complete the last frame (if any) */
- gspca_frame_add(gspca_dev, LAST_PACKET,
- NULL, 0);
-
- if (chunk_len)
- PDEBUG(D_ERR, "Chunk length is "
- "non-zero on a EOF");
- break;
-
- case 0x0005:
- PDEBUG(D_PACK, "Chunk 0x005 detected");
- /* Unknown chunk with 11 bytes of data,
- occurs just before end of each frame
- in compressed mode */
- break;
-
- case 0x0100:
- PDEBUG(D_PACK, "Chunk 0x0100 detected");
- /* Unknown chunk with 2 bytes of data,
- occurs 2-3 times per USB interrupt */
- break;
- case 0x42ff:
- PDEBUG(D_PACK, "Chunk 0x42ff detected");
- /* Special chunk seen sometimes on the ST6422 */
- break;
- default:
- PDEBUG(D_PACK, "Unknown chunk 0x%04x detected", id);
- /* Unknown chunk */
- }
- data += chunk_len;
- len -= chunk_len;
- }
-}
-
-#if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
-static int sd_int_pkt_scan(struct gspca_dev *gspca_dev,
- u8 *data, /* interrupt packet data */
- int len) /* interrupt packet length */
-{
- int ret = -EINVAL;
-
- if (len == 1 && data[0] == 0x80) {
- input_report_key(gspca_dev->input_dev, KEY_CAMERA, 1);
- input_sync(gspca_dev->input_dev);
- ret = 0;
- }
-
- if (len == 1 && data[0] == 0x88) {
- input_report_key(gspca_dev->input_dev, KEY_CAMERA, 0);
- input_sync(gspca_dev->input_dev);
- ret = 0;
- }
-
- return ret;
-}
-#endif
-
-static int stv06xx_config(struct gspca_dev *gspca_dev,
- const struct usb_device_id *id);
-
-/* sub-driver description */
-static const struct sd_desc sd_desc = {
- .name = MODULE_NAME,
- .config = stv06xx_config,
- .init = stv06xx_init,
- .init_controls = stv06xx_init_controls,
- .start = stv06xx_start,
- .stopN = stv06xx_stopN,
- .pkt_scan = stv06xx_pkt_scan,
- .isoc_init = stv06xx_isoc_init,
- .isoc_nego = stv06xx_isoc_nego,
-#if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
- .int_pkt_scan = sd_int_pkt_scan,
-#endif
-};
-
-/* This function is called at probe time */
-static int stv06xx_config(struct gspca_dev *gspca_dev,
- const struct usb_device_id *id)
-{
- struct sd *sd = (struct sd *) gspca_dev;
-
- PDEBUG(D_PROBE, "Configuring camera");
-
- sd->bridge = id->driver_info;
- gspca_dev->sd_desc = &sd_desc;
-
- if (dump_bridge)
- stv06xx_dump_bridge(sd);
-
- sd->sensor = &stv06xx_sensor_st6422;
- if (!sd->sensor->probe(sd))
- return 0;
-
- sd->sensor = &stv06xx_sensor_vv6410;
- if (!sd->sensor->probe(sd))
- return 0;
-
- sd->sensor = &stv06xx_sensor_hdcs1x00;
- if (!sd->sensor->probe(sd))
- return 0;
-
- sd->sensor = &stv06xx_sensor_hdcs1020;
- if (!sd->sensor->probe(sd))
- return 0;
-
- sd->sensor = &stv06xx_sensor_pb0100;
- if (!sd->sensor->probe(sd))
- return 0;
-
- sd->sensor = NULL;
- return -ENODEV;
-}
-
-
-
-/* -- module initialisation -- */
-static const struct usb_device_id device_table[] = {
- /* QuickCam Express */
- {USB_DEVICE(0x046d, 0x0840), .driver_info = BRIDGE_STV600 },
- /* LEGO cam / QuickCam Web */
- {USB_DEVICE(0x046d, 0x0850), .driver_info = BRIDGE_STV610 },
- /* Dexxa WebCam USB */
- {USB_DEVICE(0x046d, 0x0870), .driver_info = BRIDGE_STV602 },
- /* QuickCam Messenger */
- {USB_DEVICE(0x046D, 0x08F0), .driver_info = BRIDGE_ST6422 },
- /* QuickCam Communicate */
- {USB_DEVICE(0x046D, 0x08F5), .driver_info = BRIDGE_ST6422 },
- /* QuickCam Messenger (new) */
- {USB_DEVICE(0x046D, 0x08F6), .driver_info = BRIDGE_ST6422 },
- {}
-};
-MODULE_DEVICE_TABLE(usb, device_table);
-
-/* -- device connect -- */
-static int sd_probe(struct usb_interface *intf,
- const struct usb_device_id *id)
-{
- PDEBUG(D_PROBE, "Probing for a stv06xx device");
- return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
- THIS_MODULE);
-}
-
-static void sd_disconnect(struct usb_interface *intf)
-{
- struct gspca_dev *gspca_dev = usb_get_intfdata(intf);
- struct sd *sd = (struct sd *) gspca_dev;
- void *priv = sd->sensor_priv;
- PDEBUG(D_PROBE, "Disconnecting the stv06xx device");
-
- sd->sensor = NULL;
- gspca_disconnect(intf);
- kfree(priv);
-}
-
-static struct usb_driver sd_driver = {
- .name = MODULE_NAME,
- .id_table = device_table,
- .probe = sd_probe,
- .disconnect = sd_disconnect,
-#ifdef CONFIG_PM
- .suspend = gspca_suspend,
- .resume = gspca_resume,
- .reset_resume = gspca_resume,
-#endif
-};
-
-module_usb_driver(sd_driver);
-
-module_param(dump_bridge, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(dump_bridge, "Dumps all usb bridge registers at startup");
-
-module_param(dump_sensor, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(dump_sensor, "Dumps all sensor registers at startup");
generated by cgit v0.10.2 at 2024-08-11 22:24:37 (GMT)