[media] tw68: add original tw68 code

This tw68 driver has been out-of-tree for many years on gitorious:
https://gitorious.org/tw68/tw68-v2.

This copies that code to the kernel as a record of that original code.

Note that William Brack's email address in these sources is no longer
valid and I have not been able to contact him. However, all the code is
standard GPL.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

diff --git a/drivers/media/pci/tw68/tw68-cards.c b/drivers/media/pci/tw68/tw68-cards.c
new file mode 100644 (file)
index 0000000..62aec4f
--- /dev/null
+++ b/drivers/media/pci/tw68/tw68-cards.c
@@ -0,0 +1,172 @@
+/*
+ *  device driver for Techwell 68xx based cards
+ *
+ *  Much of this code is derived from the cx88 and sa7134 drivers, which
+ *  were in turn derived from the bt87x driver.  The original work was by
+ *  Gerd Knorr; more recently the code was enhanced by Mauro Carvalho Chehab,
+ *  Hans Verkuil, Andy Walls and many others.  Their work is gratefully
+ *  acknowledged.  Full credit goes to them - any problems within this code
+ *  are mine.
+ *
+ *  Copyright (C) 2009  William M. Brack <wbrack@mmm.com.hk>
+ *
+ *  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.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/i2c.h>         /* must appear before i2c-algo-bit.h */
+#include <linux/i2c-algo-bit.h>
+
+#include <media/v4l2-common.h>
+#include <media/tveeprom.h>
+
+#include "tw68.h"
+#include "tw68-reg.h"
+
+/* commly used strings */
+#if 0
+static char name_mute[]    = "mute";
+static char name_radio[]   = "Radio";
+static char name_tv[]      = "Television";
+static char name_tv_mono[] = "TV (mono only)";
+static char name_svideo[]  = "S-Video";
+static char name_comp[]    = "Composite";
+#endif
+static char name_comp1[]   = "Composite1";
+static char name_comp2[]   = "Composite2";
+static char name_comp3[]   = "Composite3";
+static char name_comp4[]   = "Composite4";
+
+/* ------------------------------------------------------------------ */
+/* board config info                                                  */
+
+/* If radio_type !=UNSET, radio_addr should be specified
+ */
+
+struct tw68_board tw68_boards[] = {
+       [TW68_BOARD_UNKNOWN] = {
+               .name           = "GENERIC",
+               .tuner_type     = TUNER_ABSENT,
+               .radio_type     = UNSET,
+               .tuner_addr     = ADDR_UNSET,
+               .radio_addr     = ADDR_UNSET,
+
+               .inputs         = {
+                       {
+                               .name = name_comp1,
+                               .vmux = 0,
+                       }, {
+                               .name = name_comp2,
+                               .vmux = 1,
+                       }, {
+                               .name = name_comp3,
+                               .vmux = 2,
+                       }, {
+                               .name = name_comp4,
+                               .vmux = 3,
+                       }, {    /* Must have a NULL entry at end of list */
+                               .name = NULL,
+                               .vmux = 0,
+                       }
+               },
+       },
+};
+
+const unsigned int tw68_bcount = ARRAY_SIZE(tw68_boards);
+
+/*
+ * Please add any new PCI IDs to: http://pci-ids.ucw.cz.  This keeps
+ * the PCI ID database up to date.  Note that the entries must be
+ * added under vendor 0x1797 (Techwell Inc.) as subsystem IDs.
+ */
+struct pci_device_id tw68_pci_tbl[] = {
+       {
+               .vendor         = PCI_VENDOR_ID_TECHWELL,
+               .device         = PCI_DEVICE_ID_6800,
+               .subvendor      = PCI_ANY_ID,
+               .subdevice      = PCI_ANY_ID,
+               .driver_data    = TW68_BOARD_UNKNOWN,
+       }, {
+               .vendor         = PCI_VENDOR_ID_TECHWELL,
+               .device         = PCI_DEVICE_ID_6801,
+               .subvendor      = PCI_ANY_ID,
+               .subdevice      = PCI_ANY_ID,
+               .driver_data    = TW68_BOARD_UNKNOWN,
+       }, {
+               .vendor         = PCI_VENDOR_ID_TECHWELL,
+               .device         = PCI_DEVICE_ID_6804,
+               .subvendor      = PCI_ANY_ID,
+               .subdevice      = PCI_ANY_ID,
+               .driver_data    = TW68_BOARD_UNKNOWN,
+       }, {
+               .vendor         = PCI_VENDOR_ID_TECHWELL,
+               .device         = PCI_DEVICE_ID_6816_1,
+               .subvendor      = PCI_ANY_ID,
+               .subdevice      = PCI_ANY_ID,
+               .driver_data    = TW68_BOARD_UNKNOWN,
+       }, {
+               .vendor         = PCI_VENDOR_ID_TECHWELL,
+               .device         = PCI_DEVICE_ID_6816_2,
+               .subvendor      = PCI_ANY_ID,
+               .subdevice      = PCI_ANY_ID,
+               .driver_data    = TW68_BOARD_UNKNOWN,
+       }, {
+               .vendor         = PCI_VENDOR_ID_TECHWELL,
+               .device         = PCI_DEVICE_ID_6816_3,
+               .subvendor      = PCI_ANY_ID,
+               .subdevice      = PCI_ANY_ID,
+               .driver_data    = TW68_BOARD_UNKNOWN,
+       }, {
+               .vendor         = PCI_VENDOR_ID_TECHWELL,
+               .device         = PCI_DEVICE_ID_6816_4,
+               .subvendor      = PCI_ANY_ID,
+               .subdevice      = PCI_ANY_ID,
+               .driver_data    = TW68_BOARD_UNKNOWN,
+       }, {
+               /* end of list */
+       }
+};
+MODULE_DEVICE_TABLE(pci, tw68_pci_tbl);
+
+/* ------------------------------------------------------------ */
+/* stuff done before i2c enabled */
+int tw68_board_init1(struct tw68_dev *dev)
+{
+       /* Clear GPIO outputs */
+       tw_writel(TW68_GPOE, 0);
+       /* Remainder of setup according to board ID */
+       switch (dev->board) {
+       case TW68_BOARD_UNKNOWN:
+               printk(KERN_INFO "%s: Unable to determine board type, "
+                               "using generic values\n", dev->name);
+               break;
+       }
+       dev->input = dev->hw_input = &card_in(dev,0);
+       return 0;
+}
+
+int tw68_tuner_setup(struct tw68_dev *dev)
+{
+       return 0;
+}
+
+/* stuff which needs working i2c */
+int tw68_board_init2(struct tw68_dev *dev)
+{
+       return 0;
+}
+
+

diff --cc drivers/media/pci/tw68/tw68-core.c
Simple merge

diff --cc drivers/media/pci/tw68/tw68-i2c.c
Simple merge

diff --cc drivers/media/pci/tw68/tw68-reg.h
Simple merge

diff --cc drivers/media/pci/tw68/tw68-risc.c
Simple merge

diff --cc drivers/media/pci/tw68/tw68-ts.c
Simple merge

diff --cc drivers/media/pci/tw68/tw68-tvaudio.c
Simple merge

diff --cc drivers/media/pci/tw68/tw68-vbi.c
Simple merge

diff --cc drivers/media/pci/tw68/tw68-video.c
Simple merge

diff --cc drivers/media/pci/tw68/tw68.h
Simple merge