gspca: Add MR97310A driver
From: Kyle Guinn <elyk03@xxxxxxxxx>
This patch adds support for USB webcams based on the MR97310A chip. It was
tested with an Aiptek PenCam VGA+ webcam.
Priority: normal
Signed-off-by: Kyle Guinn <elyk03@xxxxxxxxx>
diff --git a/linux/Documentation/video4linux/gspca.txt b/linux/Documentation/video4linux/gspca.txt
--- a/linux/Documentation/video4linux/gspca.txt
+++ b/linux/Documentation/video4linux/gspca.txt
@@ -193,6 +193,7 @@
spca500 08ca:0103 Aiptek PocketDV
sunplus 08ca:0104 Aiptek PocketDVII 1.3
sunplus 08ca:0106 Aiptek Pocket DV3100+
+mr97310a 08ca:0111 Aiptek PenCam VGA+
sunplus 08ca:2008 Aiptek Mini PenCam 2 M
sunplus 08ca:2010 Aiptek PocketCam 3M
sunplus 08ca:2016 Aiptek PocketCam 2 Mega
diff --git a/linux/drivers/media/video/gspca/Kconfig b/linux/drivers/media/video/gspca/Kconfig
--- a/linux/drivers/media/video/gspca/Kconfig
+++ b/linux/drivers/media/video/gspca/Kconfig
@@ -55,6 +55,15 @@
To compile this driver as a module, choose M here: the
module will be called gspca_mars.
+
+config USB_GSPCA_MR97310A
+ tristate "Mars-Semi MR97310A USB Camera Driver"
+ depends on VIDEO_V4L2 && USB_GSPCA
+ help
+ Say Y here if you want support for cameras based on the MR97310A chip.
+
+ To compile this driver as a module, choose M here: the
+ module will be called gspca_mr97310a.
config USB_GSPCA_OV519
tristate "OV519 USB Camera Driver"
diff --git a/linux/drivers/media/video/gspca/Makefile b/linux/drivers/media/video/gspca/Makefile
--- a/linux/drivers/media/video/gspca/Makefile
+++ b/linux/drivers/media/video/gspca/Makefile
@@ -1,50 +1,52 @@
-obj-$(CONFIG_USB_GSPCA) += gspca_main.o
-obj-$(CONFIG_USB_GSPCA_CONEX) += gspca_conex.o
-obj-$(CONFIG_USB_GSPCA_ETOMS) += gspca_etoms.o
-obj-$(CONFIG_USB_GSPCA_FINEPIX) += gspca_finepix.o
-obj-$(CONFIG_USB_GSPCA_MARS) += gspca_mars.o
-obj-$(CONFIG_USB_GSPCA_OV519) += gspca_ov519.o
-obj-$(CONFIG_USB_GSPCA_OV534) += gspca_ov534.o
-obj-$(CONFIG_USB_GSPCA_PAC207) += gspca_pac207.o
-obj-$(CONFIG_USB_GSPCA_PAC7311) += gspca_pac7311.o
-obj-$(CONFIG_USB_GSPCA_SONIXB) += gspca_sonixb.o
-obj-$(CONFIG_USB_GSPCA_SONIXJ) += gspca_sonixj.o
-obj-$(CONFIG_USB_GSPCA_SPCA500) += gspca_spca500.o
-obj-$(CONFIG_USB_GSPCA_SPCA501) += gspca_spca501.o
-obj-$(CONFIG_USB_GSPCA_SPCA505) += gspca_spca505.o
-obj-$(CONFIG_USB_GSPCA_SPCA506) += gspca_spca506.o
-obj-$(CONFIG_USB_GSPCA_SPCA508) += gspca_spca508.o
-obj-$(CONFIG_USB_GSPCA_SPCA561) += gspca_spca561.o
-obj-$(CONFIG_USB_GSPCA_SUNPLUS) += gspca_sunplus.o
-obj-$(CONFIG_USB_GSPCA_STK014) += gspca_stk014.o
-obj-$(CONFIG_USB_GSPCA_T613) += gspca_t613.o
-obj-$(CONFIG_USB_GSPCA_TV8532) += gspca_tv8532.o
-obj-$(CONFIG_USB_GSPCA_VC032X) += gspca_vc032x.o
-obj-$(CONFIG_USB_GSPCA_ZC3XX) += gspca_zc3xx.o
+obj-$(CONFIG_USB_GSPCA) += gspca_main.o
+obj-$(CONFIG_USB_GSPCA_CONEX) += gspca_conex.o
+obj-$(CONFIG_USB_GSPCA_ETOMS) += gspca_etoms.o
+obj-$(CONFIG_USB_GSPCA_FINEPIX) += gspca_finepix.o
+obj-$(CONFIG_USB_GSPCA_MARS) += gspca_mars.o
+obj-$(CONFIG_USB_GSPCA_MR97310A) += gspca_mr97310a.o
+obj-$(CONFIG_USB_GSPCA_OV519) += gspca_ov519.o
+obj-$(CONFIG_USB_GSPCA_OV534) += gspca_ov534.o
+obj-$(CONFIG_USB_GSPCA_PAC207) += gspca_pac207.o
+obj-$(CONFIG_USB_GSPCA_PAC7311) += gspca_pac7311.o
+obj-$(CONFIG_USB_GSPCA_SONIXB) += gspca_sonixb.o
+obj-$(CONFIG_USB_GSPCA_SONIXJ) += gspca_sonixj.o
+obj-$(CONFIG_USB_GSPCA_SPCA500) += gspca_spca500.o
+obj-$(CONFIG_USB_GSPCA_SPCA501) += gspca_spca501.o
+obj-$(CONFIG_USB_GSPCA_SPCA505) += gspca_spca505.o
+obj-$(CONFIG_USB_GSPCA_SPCA506) += gspca_spca506.o
+obj-$(CONFIG_USB_GSPCA_SPCA508) += gspca_spca508.o
+obj-$(CONFIG_USB_GSPCA_SPCA561) += gspca_spca561.o
+obj-$(CONFIG_USB_GSPCA_SUNPLUS) += gspca_sunplus.o
+obj-$(CONFIG_USB_GSPCA_STK014) += gspca_stk014.o
+obj-$(CONFIG_USB_GSPCA_T613) += gspca_t613.o
+obj-$(CONFIG_USB_GSPCA_TV8532) += gspca_tv8532.o
+obj-$(CONFIG_USB_GSPCA_VC032X) += gspca_vc032x.o
+obj-$(CONFIG_USB_GSPCA_ZC3XX) += gspca_zc3xx.o
-gspca_main-objs := gspca.o
-gspca_conex-objs := conex.o
-gspca_etoms-objs := etoms.o
-gspca_finepix-objs := finepix.o
-gspca_mars-objs := mars.o
-gspca_ov519-objs := ov519.o
-gspca_ov534-objs := ov534.o
-gspca_pac207-objs := pac207.o
-gspca_pac7311-objs := pac7311.o
-gspca_sonixb-objs := sonixb.o
-gspca_sonixj-objs := sonixj.o
-gspca_spca500-objs := spca500.o
-gspca_spca501-objs := spca501.o
-gspca_spca505-objs := spca505.o
-gspca_spca506-objs := spca506.o
-gspca_spca508-objs := spca508.o
-gspca_spca561-objs := spca561.o
-gspca_stk014-objs := stk014.o
-gspca_sunplus-objs := sunplus.o
-gspca_t613-objs := t613.o
-gspca_tv8532-objs := tv8532.o
-gspca_vc032x-objs := vc032x.o
-gspca_zc3xx-objs := zc3xx.o
+gspca_main-objs := gspca.o
+gspca_conex-objs := conex.o
+gspca_etoms-objs := etoms.o
+gspca_finepix-objs := finepix.o
+gspca_mars-objs := mars.o
+gspca_mr97310a-objs := mr97310a.o
+gspca_ov519-objs := ov519.o
+gspca_ov534-objs := ov534.o
+gspca_pac207-objs := pac207.o
+gspca_pac7311-objs := pac7311.o
+gspca_sonixb-objs := sonixb.o
+gspca_sonixj-objs := sonixj.o
+gspca_spca500-objs := spca500.o
+gspca_spca501-objs := spca501.o
+gspca_spca505-objs := spca505.o
+gspca_spca506-objs := spca506.o
+gspca_spca508-objs := spca508.o
+gspca_spca561-objs := spca561.o
+gspca_stk014-objs := stk014.o
+gspca_sunplus-objs := sunplus.o
+gspca_t613-objs := t613.o
+gspca_tv8532-objs := tv8532.o
+gspca_vc032x-objs := vc032x.o
+gspca_zc3xx-objs := zc3xx.o
-obj-$(CONFIG_USB_M5602) += m5602/
-obj-$(CONFIG_USB_STV06XX) += stv06xx/
+obj-$(CONFIG_USB_M5602) += m5602/
+obj-$(CONFIG_USB_STV06XX) += stv06xx/
diff --git a/linux/drivers/media/video/gspca/gspca.c b/linux/drivers/media/video/gspca/gspca.c
--- a/linux/drivers/media/video/gspca/gspca.c
+++ b/linux/drivers/media/video/gspca/gspca.c
@@ -329,6 +329,7 @@
case V4L2_PIX_FMT_JPEG:
case V4L2_PIX_FMT_SPCA561:
case V4L2_PIX_FMT_PAC207:
+ case V4L2_PIX_FMT_MR97310A:
return 1;
}
return 0;
diff --git a/linux/drivers/media/video/gspca/mr97310a.c b/linux/drivers/media/video/gspca/mr97310a.c
new file mode 100644
--- /dev/null
+++ b/linux/drivers/media/video/gspca/mr97310a.c
@@ -0,0 +1,378 @@
+/*
+ * Mars MR97310A library
+ *
+ * Copyright (C) 2009 Kyle Guinn <elyk03@xxxxxxxxx>
+ *
+ * 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
+ * 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
+ */
+
+#define MODULE_NAME "mr97310a"
+
+#include "gspca.h"
+
+MODULE_AUTHOR("Kyle Guinn <elyk03@xxxxxxxxx>");
+MODULE_DESCRIPTION("GSPCA/Mars-Semi MR97310A USB Camera Driver");
+MODULE_LICENSE("GPL");
+
+/* specific webcam descriptor */
+struct sd {
+ struct gspca_dev gspca_dev; /* !! must be the first item */
+
+ u8 sof_read;
+ u8 header_read;
+};
+
+/* V4L2 controls supported by the driver */
+static struct ctrl sd_ctrls[] = {
+};
+
+static const struct v4l2_pix_format vga_mode[] = {
+ {160, 120, V4L2_PIX_FMT_MR97310A, V4L2_FIELD_NONE,
+ .bytesperline = 160,
+ .sizeimage = 160 * 120,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .priv = 4},
+ {176, 144, V4L2_PIX_FMT_MR97310A, V4L2_FIELD_NONE,
+ .bytesperline = 176,
+ .sizeimage = 176 * 144,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .priv = 3},
+ {320, 240, V4L2_PIX_FMT_MR97310A, V4L2_FIELD_NONE,
+ .bytesperline = 320,
+ .sizeimage = 320 * 240,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .priv = 2},
+ {352, 288, V4L2_PIX_FMT_MR97310A, V4L2_FIELD_NONE,
+ .bytesperline = 352,
+ .sizeimage = 352 * 288,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .priv = 1},
+ {640, 480, V4L2_PIX_FMT_MR97310A, V4L2_FIELD_NONE,
+ .bytesperline = 640,
+ .sizeimage = 640 * 480,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .priv = 0},
+};
+
+/* the bytes to write are in gspca_dev->usb_buf */
+static int reg_w(struct gspca_dev *gspca_dev, int len)
+{
+ int rc;
+
+ rc = usb_bulk_msg(gspca_dev->dev,
+ usb_sndbulkpipe(gspca_dev->dev, 4),
+ gspca_dev->usb_buf, len, 0, 500);
+ if (rc < 0)
+ PDEBUG(D_ERR, "reg write [%02x] error %d",
+ gspca_dev->usb_buf[0], rc);
+ return rc;
+}
+
+/* this function is called at probe time */
+static int sd_config(struct gspca_dev *gspca_dev,
+ const struct usb_device_id *id)
+{
+ struct cam *cam;
+
+ cam = &gspca_dev->cam;
+ cam->cam_mode = vga_mode;
+ cam->nmodes = ARRAY_SIZE(vga_mode);
+ return 0;
+}
+
+/* this function is called at probe and resume time */
+static int sd_init(struct gspca_dev *gspca_dev)
+{
+ return 0;
+}
+
+static int sd_start(struct gspca_dev *gspca_dev)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ __u8 *data = gspca_dev->usb_buf;
+ int err_code;
+
+ sd->sof_read = 0;
+
+ /* Note: register descriptions guessed from MR97113A driver */
+
+ data[0] = 0x01;
+ data[1] = 0x01;
+ err_code = reg_w(gspca_dev, 2);
+ if (err_code < 0)
+ return err_code;
+
+ data[0] = 0x00;
+ data[1] = 0x0d;
+ data[2] = 0x01;
+ data[5] = 0x2b;
+ data[7] = 0x00;
+ data[9] = 0x50; /* reg 8, no scale down */
+ data[10] = 0xc0;
+
+ switch (gspca_dev->width) {
+ case 160:
+ data[9] |= 0x0c; /* reg 8, 4:1 scale down */
+ /* fall thru */
+ case 320:
+ data[9] |= 0x04; /* reg 8, 2:1 scale down */
+ /* fall thru */
+ case 640:
+ default:
+ data[3] = 0x50; /* reg 2, H size */
+ data[4] = 0x78; /* reg 3, V size */
+ data[6] = 0x04; /* reg 5, H start */
+ data[8] = 0x03; /* reg 7, V start */
+ break;
+
+ case 176:
+ data[9] |= 0x04; /* reg 8, 2:1 scale down */
+ /* fall thru */
+ case 352:
+ data[3] = 0x2c; /* reg 2, H size */
+ data[4] = 0x48; /* reg 3, V size */
+ data[6] = 0x94; /* reg 5, H start */
+ data[8] = 0x63; /* reg 7, V start */
+ break;
+ }
+
+ err_code = reg_w(gspca_dev, 11);
+ if (err_code < 0)
+ return err_code;
+
+ data[0] = 0x0a;
+ data[1] = 0x80;
+ err_code = reg_w(gspca_dev, 2);
+ if (err_code < 0)
+ return err_code;
+
+ data[0] = 0x14;
+ data[1] = 0x0a;
+ err_code = reg_w(gspca_dev, 2);
+ if (err_code < 0)
+ return err_code;
+
+ data[0] = 0x1b;
+ data[1] = 0x00;
+ err_code = reg_w(gspca_dev, 2);
+ if (err_code < 0)
+ return err_code;
+
+ data[0] = 0x15;
+ data[1] = 0x16;
+ err_code = reg_w(gspca_dev, 2);
+ if (err_code < 0)
+ return err_code;
+
+ data[0] = 0x16;
+ data[1] = 0x10;
+ err_code = reg_w(gspca_dev, 2);
+ if (err_code < 0)
+ return err_code;
+
+ data[0] = 0x17;
+ data[1] = 0x3a;
+ err_code = reg_w(gspca_dev, 2);
+ if (err_code < 0)
+ return err_code;
+
+ data[0] = 0x18;
+ data[1] = 0x68;
+ err_code = reg_w(gspca_dev, 2);
+ if (err_code < 0)
+ return err_code;
+
+ data[0] = 0x1f;
+ data[1] = 0x00;
+ data[2] = 0x02;
+ data[3] = 0x06;
+ data[4] = 0x59;
+ data[5] = 0x0c;
+ data[6] = 0x16;
+ data[7] = 0x00;
+ data[8] = 0x07;
+ data[9] = 0x00;
+ data[10] = 0x01;
+ err_code = reg_w(gspca_dev, 11);
+ if (err_code < 0)
+ return err_code;
+
+ data[0] = 0x1f;
+ data[1] = 0x04;
+ data[2] = 0x11;
+ data[3] = 0x01;
+ err_code = reg_w(gspca_dev, 4);
+ if (err_code < 0)
+ return err_code;
+
+ data[0] = 0x1f;
+ data[1] = 0x00;
+ data[2] = 0x0a;
+ data[3] = 0x00;
+ data[4] = 0x01;
+ data[5] = 0x00;
+ data[6] = 0x00;
+ data[7] = 0x01;
+ data[8] = 0x00;
+ data[9] = 0x0a;
+ err_code = reg_w(gspca_dev, 10);
+ if (err_code < 0)
+ return err_code;
+
+ data[0] = 0x1f;
+ data[1] = 0x04;
+ data[2] = 0x11;
+ data[3] = 0x01;
+ err_code = reg_w(gspca_dev, 4);
+ if (err_code < 0)
+ return err_code;
+
+ data[0] = 0x1f;
+ data[1] = 0x00;
+ data[2] = 0x12;
+ data[3] = 0x00;
+ data[4] = 0x63;
+ data[5] = 0x00;
+ data[6] = 0x70;
+ data[7] = 0x00;
+ data[8] = 0x01;
+ err_code = reg_w(gspca_dev, 10);
+ if (err_code < 0)
+ return err_code;
+
+ data[0] = 0x1f;
+ data[1] = 0x04;
+ data[2] = 0x11;
+ data[3] = 0x01;
+ err_code = reg_w(gspca_dev, 4);
+ if (err_code < 0)
+ return err_code;
+
+ data[0] = 0x00;
+ data[1] = 0x4d; /* ISOC transfering enable... */
+ err_code = reg_w(gspca_dev, 2);
+ return err_code;
+}
+
+static void sd_stopN(struct gspca_dev *gspca_dev)
+{
+ int result;
+
+ gspca_dev->usb_buf[0] = 1;
+ gspca_dev->usb_buf[1] = 0;
+ result = reg_w(gspca_dev, 2);
+ if (result < 0)
+ PDEBUG(D_ERR, "Camera Stop failed");
+}
+
+/* Include pac common sof detection functions */
+#include "pac_common.h"
+
+static void sd_pkt_scan(struct gspca_dev *gspca_dev,
+ struct gspca_frame *frame, /* target */
+ __u8 *data, /* isoc packet */
+ int len) /* iso packet length */
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ unsigned char *sof;
+
+ sof = pac_find_sof(gspca_dev, data, len);
+ if (sof) {
+ int n;
+
+ /* finish decoding current frame */
+ n = sof - data;
+ if (n > sizeof pac_sof_marker)
+ n -= sizeof pac_sof_marker;
+ else
+ n = 0;
+ frame = gspca_frame_add(gspca_dev, LAST_PACKET, frame,
+ data, n);
+ sd->header_read = 0;
+ gspca_frame_add(gspca_dev, FIRST_PACKET, frame, NULL, 0);
+ len -= sof - data;
+ data = sof;
+ }
+ if (sd->header_read < 7) {
+ int needed;
+
+ /* skip the rest of the header */
+ needed = 7 - sd->header_read;
+ if (len <= needed) {
+ sd->header_read += len;
+ return;
+ }
+ data += needed;
+ len -= needed;
+ sd->header_read = 7;
+ }
+
+ gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
+}
+
+/* sub-driver description */
+static const struct sd_desc sd_desc = {
+ .name = MODULE_NAME,
+ .ctrls = sd_ctrls,
+ .nctrls = ARRAY_SIZE(sd_ctrls),
+ .config = sd_config,
+ .init = sd_init,
+ .start = sd_start,
+ .stopN = sd_stopN,
+ .pkt_scan = sd_pkt_scan,
+};
+
+/* -- module initialisation -- */
+static const __devinitdata struct usb_device_id device_table[] = {
+ {USB_DEVICE(0x08ca, 0x0111)},
+ {}
+};
+MODULE_DEVICE_TABLE(usb, device_table);
+
+/* -- device connect -- */
+static int sd_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
+ THIS_MODULE);
+}
+
+static struct usb_driver sd_driver = {
+ .name = MODULE_NAME,
+ .id_table = device_table,
+ .probe = sd_probe,
+ .disconnect = gspca_disconnect,
+#ifdef CONFIG_PM
+ .suspend = gspca_suspend,
+ .resume = gspca_resume,
+#endif
+};
+
+/* -- module insert / remove -- */
+static int __init sd_mod_init(void)
+{
+ if (usb_register(&sd_driver) < 0)
+ return -1;
+ PDEBUG(D_PROBE, "registered");
+ return 0;
+}
+static void __exit sd_mod_exit(void)
+{
+ usb_deregister(&sd_driver);
+ PDEBUG(D_PROBE, "deregistered");
+}
+
+module_init(sd_mod_init);
+module_exit(sd_mod_exit);
--
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