diff options
Diffstat (limited to 'drivers/staging/media/easycap/easycap_low.c')
-rw-r--r-- | drivers/staging/media/easycap/easycap_low.c | 1129 |
1 files changed, 1129 insertions, 0 deletions
diff --git a/drivers/staging/media/easycap/easycap_low.c b/drivers/staging/media/easycap/easycap_low.c new file mode 100644 index 00000000000..0385735ac6d --- /dev/null +++ b/drivers/staging/media/easycap/easycap_low.c @@ -0,0 +1,1129 @@ +/***************************************************************************** +* * +* * +* easycap_low.c * +* * +* * +*****************************************************************************/ +/* + * + * Copyright (C) 2010 R.M. Thomas <rmthomas@sciolus.org> + * + * + * This 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. + * + * The software 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 software; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * +*/ +/*****************************************************************************/ +/* + * ACKNOWLEGEMENTS AND REFERENCES + * ------------------------------ + * This driver makes use of register information contained in the Syntek + * Semicon DC-1125 driver hosted at + * http://sourceforge.net/projects/syntekdriver/. + * Particularly useful has been a patch to the latter driver provided by + * Ivor Hewitt in January 2009. The NTSC implementation is taken from the + * work of Ben Trask. +*/ +/****************************************************************************/ + +#include "easycap.h" + +#define GET(X, Y, Z) do { \ + int __rc; \ + *(Z) = (u16)0; \ + __rc = regget(X, Y, Z, sizeof(u8)); \ + if (0 > __rc) { \ + JOT(8, ":-(%i\n", __LINE__); return __rc; \ + } \ +} while (0) + +#define SET(X, Y, Z) do { \ + int __rc; \ + __rc = regset(X, Y, Z); \ + if (0 > __rc) { \ + JOT(8, ":-(%i\n", __LINE__); return __rc; \ + } \ +} while (0) + +/*--------------------------------------------------------------------------*/ +static const struct stk1160config { + int reg; + int set; +} stk1160configPAL[256] = { + {0x000, 0x0098}, + {0x002, 0x0093}, + + {0x001, 0x0003}, + {0x003, 0x0080}, + {0x00D, 0x0000}, + {0x00F, 0x0002}, + {0x018, 0x0010}, + {0x019, 0x0000}, + {0x01A, 0x0014}, + {0x01B, 0x000E}, + {0x01C, 0x0046}, + + {0x100, 0x0033}, + {0x103, 0x0000}, + {0x104, 0x0000}, + {0x105, 0x0000}, + {0x106, 0x0000}, + +/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ +/* + * RESOLUTION 640x480 +*/ +/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ + {0x110, 0x0008}, + {0x111, 0x0000}, + {0x112, 0x0020}, + {0x113, 0x0000}, + {0x114, 0x0508}, + {0x115, 0x0005}, + {0x116, 0x0110}, + {0x117, 0x0001}, +/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ + + {0x202, 0x000F}, + {0x203, 0x004A}, + {0x2FF, 0x0000}, + + {0xFFF, 0xFFFF} +}; +/*--------------------------------------------------------------------------*/ +static const struct stk1160config stk1160configNTSC[256] = { + {0x000, 0x0098}, + {0x002, 0x0093}, + + {0x001, 0x0003}, + {0x003, 0x0080}, + {0x00D, 0x0000}, + {0x00F, 0x0002}, + {0x018, 0x0010}, + {0x019, 0x0000}, + {0x01A, 0x0014}, + {0x01B, 0x000E}, + {0x01C, 0x0046}, + + {0x100, 0x0033}, + {0x103, 0x0000}, + {0x104, 0x0000}, + {0x105, 0x0000}, + {0x106, 0x0000}, + +/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ +/* + * RESOLUTION 640x480 +*/ +/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ + {0x110, 0x0008}, + {0x111, 0x0000}, + {0x112, 0x0003}, + {0x113, 0x0000}, + {0x114, 0x0508}, + {0x115, 0x0005}, + {0x116, 0x00F3}, + {0x117, 0x0000}, +/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ + + {0x202, 0x000F}, + {0x203, 0x004A}, + {0x2FF, 0x0000}, + + {0xFFF, 0xFFFF} +}; +/*--------------------------------------------------------------------------*/ +static const struct saa7113config { + int reg; + int set; +} saa7113configPAL[256] = { + {0x01, 0x08}, + {0x02, 0x80}, + {0x03, 0x33}, + {0x04, 0x00}, + {0x05, 0x00}, + {0x06, 0xE9}, + {0x07, 0x0D}, + {0x08, 0x38}, + {0x09, 0x00}, + {0x0A, SAA_0A_DEFAULT}, + {0x0B, SAA_0B_DEFAULT}, + {0x0C, SAA_0C_DEFAULT}, + {0x0D, SAA_0D_DEFAULT}, + {0x0E, 0x01}, + {0x0F, 0x36}, + {0x10, 0x00}, + {0x11, 0x0C}, + {0x12, 0xE7}, + {0x13, 0x00}, + {0x15, 0x00}, + {0x16, 0x00}, + {0x40, 0x02}, + {0x41, 0xFF}, + {0x42, 0xFF}, + {0x43, 0xFF}, + {0x44, 0xFF}, + {0x45, 0xFF}, + {0x46, 0xFF}, + {0x47, 0xFF}, + {0x48, 0xFF}, + {0x49, 0xFF}, + {0x4A, 0xFF}, + {0x4B, 0xFF}, + {0x4C, 0xFF}, + {0x4D, 0xFF}, + {0x4E, 0xFF}, + {0x4F, 0xFF}, + {0x50, 0xFF}, + {0x51, 0xFF}, + {0x52, 0xFF}, + {0x53, 0xFF}, + {0x54, 0xFF}, + {0x55, 0xFF}, + {0x56, 0xFF}, + {0x57, 0xFF}, + {0x58, 0x40}, + {0x59, 0x54}, + {0x5A, 0x07}, + {0x5B, 0x83}, + + {0xFF, 0xFF} +}; +/*--------------------------------------------------------------------------*/ +static const struct saa7113config saa7113configNTSC[256] = { + {0x01, 0x08}, + {0x02, 0x80}, + {0x03, 0x33}, + {0x04, 0x00}, + {0x05, 0x00}, + {0x06, 0xE9}, + {0x07, 0x0D}, + {0x08, 0x78}, + {0x09, 0x00}, + {0x0A, SAA_0A_DEFAULT}, + {0x0B, SAA_0B_DEFAULT}, + {0x0C, SAA_0C_DEFAULT}, + {0x0D, SAA_0D_DEFAULT}, + {0x0E, 0x01}, + {0x0F, 0x36}, + {0x10, 0x00}, + {0x11, 0x0C}, + {0x12, 0xE7}, + {0x13, 0x00}, + {0x15, 0x00}, + {0x16, 0x00}, + {0x40, 0x82}, + {0x41, 0xFF}, + {0x42, 0xFF}, + {0x43, 0xFF}, + {0x44, 0xFF}, + {0x45, 0xFF}, + {0x46, 0xFF}, + {0x47, 0xFF}, + {0x48, 0xFF}, + {0x49, 0xFF}, + {0x4A, 0xFF}, + {0x4B, 0xFF}, + {0x4C, 0xFF}, + {0x4D, 0xFF}, + {0x4E, 0xFF}, + {0x4F, 0xFF}, + {0x50, 0xFF}, + {0x51, 0xFF}, + {0x52, 0xFF}, + {0x53, 0xFF}, + {0x54, 0xFF}, + {0x55, 0xFF}, + {0x56, 0xFF}, + {0x57, 0xFF}, + {0x58, 0x40}, + {0x59, 0x54}, + {0x5A, 0x0A}, + {0x5B, 0x83}, + + {0xFF, 0xFF} +}; + +static int regget(struct usb_device *pusb_device, + u16 index, void *reg, int reg_size) +{ + int rc; + + if (!pusb_device) + return -ENODEV; + + rc = usb_control_msg(pusb_device, usb_rcvctrlpipe(pusb_device, 0), + 0x00, + (USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE), + 0x00, + index, reg, reg_size, 50000); + + return rc; +} + +static int regset(struct usb_device *pusb_device, u16 index, u16 value) +{ + int rc; + + if (!pusb_device) + return -ENODEV; + + rc = usb_control_msg(pusb_device, usb_sndctrlpipe(pusb_device, 0), + 0x01, + (USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE), + value, index, NULL, 0, 500); + + if (rc < 0) + return rc; + + if (easycap_readback) { + u16 igot = 0; + rc = regget(pusb_device, index, &igot, sizeof(igot)); + igot = 0xFF & igot; + switch (index) { + case 0x000: + case 0x500: + case 0x502: + case 0x503: + case 0x504: + case 0x506: + case 0x507: + break; + + case 0x204: + case 0x205: + case 0x350: + case 0x351: + if (igot) + JOT(8, "unexpected 0x%02X " + "for STK register 0x%03X\n", + igot, index); + break; + + default: + if ((0xFF & value) != igot) + JOT(8, "unexpected 0x%02X != 0x%02X " + "for STK register 0x%03X\n", + igot, value, index); + break; + } + } + + return rc; +} +/*--------------------------------------------------------------------------*/ +/* + * FUNCTION wait_i2c() RETURNS 0 ON SUCCESS +*/ +/*--------------------------------------------------------------------------*/ +static int wait_i2c(struct usb_device *p) +{ + u16 get0; + u8 igot; + const int max = 2; + int k; + + if (!p) + return -ENODEV; + + for (k = 0; k < max; k++) { + GET(p, 0x0201, &igot); get0 = igot; + switch (get0) { + case 0x04: + case 0x01: + return 0; + case 0x00: + msleep(20); + continue; + default: + return get0 - 1; + } + } + return -1; +} + +/****************************************************************************/ +int confirm_resolution(struct usb_device *p) +{ + u8 get0, get1, get2, get3, get4, get5, get6, get7; + + if (!p) + return -ENODEV; + GET(p, 0x0110, &get0); + GET(p, 0x0111, &get1); + GET(p, 0x0112, &get2); + GET(p, 0x0113, &get3); + GET(p, 0x0114, &get4); + GET(p, 0x0115, &get5); + GET(p, 0x0116, &get6); + GET(p, 0x0117, &get7); + JOT(8, "0x%03X, 0x%03X, " + "0x%03X, 0x%03X, " + "0x%03X, 0x%03X, " + "0x%03X, 0x%03X\n", + get0, get1, get2, get3, get4, get5, get6, get7); + JOT(8, "....cf PAL_720x526: " + "0x%03X, 0x%03X, " + "0x%03X, 0x%03X, " + "0x%03X, 0x%03X, " + "0x%03X, 0x%03X\n", + 0x000, 0x000, 0x001, 0x000, 0x5A0, 0x005, 0x121, 0x001); + JOT(8, "....cf PAL_704x526: " + "0x%03X, 0x%03X, " + "0x%03X, 0x%03X, " + "0x%03X, 0x%03X, " + "0x%03X, 0x%03X\n", + 0x004, 0x000, 0x001, 0x000, 0x584, 0x005, 0x121, 0x001); + JOT(8, "....cf VGA_640x480: " + "0x%03X, 0x%03X, " + "0x%03X, 0x%03X, " + "0x%03X, 0x%03X, " + "0x%03X, 0x%03X\n", + 0x008, 0x000, 0x020, 0x000, 0x508, 0x005, 0x110, 0x001); + return 0; +} +/****************************************************************************/ +int confirm_stream(struct usb_device *p) +{ + u16 get2; + u8 igot; + + if (!p) + return -ENODEV; + GET(p, 0x0100, &igot); get2 = 0x80 & igot; + if (0x80 == get2) + JOT(8, "confirm_stream: OK\n"); + else + JOT(8, "confirm_stream: STUCK\n"); + return 0; +} +/****************************************************************************/ +int setup_stk(struct usb_device *p, bool ntsc) +{ + int i; + const struct stk1160config *cfg; + if (!p) + return -ENODEV; + cfg = (ntsc) ? stk1160configNTSC : stk1160configPAL; + for (i = 0; cfg[i].reg != 0xFFF; i++) + SET(p, cfg[i].reg, cfg[i].set); + + write_300(p); + + return 0; +} +/****************************************************************************/ +int setup_saa(struct usb_device *p, bool ntsc) +{ + int i, ir; + const struct saa7113config *cfg; + if (!p) + return -ENODEV; + cfg = (ntsc) ? saa7113configNTSC : saa7113configPAL; + for (i = 0; cfg[i].reg != 0xFF; i++) + ir = write_saa(p, cfg[i].reg, cfg[i].set); + return 0; +} +/****************************************************************************/ +int write_000(struct usb_device *p, u16 set2, u16 set0) +{ + u8 igot0, igot2; + + if (!p) + return -ENODEV; + GET(p, 0x0002, &igot2); + GET(p, 0x0000, &igot0); + SET(p, 0x0002, set2); + SET(p, 0x0000, set0); + return 0; +} +/****************************************************************************/ +int write_saa(struct usb_device *p, u16 reg0, u16 set0) +{ + if (!p) + return -ENODEV; + SET(p, 0x200, 0x00); + SET(p, 0x204, reg0); + SET(p, 0x205, set0); + SET(p, 0x200, 0x01); + return wait_i2c(p); +} +/****************************************************************************/ +/*--------------------------------------------------------------------------*/ +/* + * REGISTER 500: SETTING VALUE TO 0x008B READS FROM VT1612A (?) + * REGISTER 500: SETTING VALUE TO 0x008C WRITES TO VT1612A + * REGISTER 502: LEAST SIGNIFICANT BYTE OF VALUE TO SET + * REGISTER 503: MOST SIGNIFICANT BYTE OF VALUE TO SET + * REGISTER 504: TARGET ADDRESS ON VT1612A + */ +/*--------------------------------------------------------------------------*/ +int +write_vt(struct usb_device *p, u16 reg0, u16 set0) +{ + u8 igot; + u16 got502, got503; + u16 set502, set503; + + if (!p) + return -ENODEV; + SET(p, 0x0504, reg0); + SET(p, 0x0500, 0x008B); + + GET(p, 0x0502, &igot); got502 = (0xFF & igot); + GET(p, 0x0503, &igot); got503 = (0xFF & igot); + + JOT(16, "write_vt(., 0x%04X, 0x%04X): was 0x%04X\n", + reg0, set0, ((got503 << 8) | got502)); + + set502 = (0x00FF & set0); + set503 = ((0xFF00 & set0) >> 8); + + SET(p, 0x0504, reg0); + SET(p, 0x0502, set502); + SET(p, 0x0503, set503); + SET(p, 0x0500, 0x008C); + + return 0; +} +/****************************************************************************/ +/*--------------------------------------------------------------------------*/ +/* + * REGISTER 500: SETTING VALUE TO 0x008B READS FROM VT1612A (?) + * REGISTER 500: SETTING VALUE TO 0x008C WRITES TO VT1612A + * REGISTER 502: LEAST SIGNIFICANT BYTE OF VALUE TO GET + * REGISTER 503: MOST SIGNIFICANT BYTE OF VALUE TO GET + * REGISTER 504: TARGET ADDRESS ON VT1612A + */ +/*--------------------------------------------------------------------------*/ +int read_vt(struct usb_device *p, u16 reg0) +{ + u8 igot; + u16 got502, got503; + + if (!p) + return -ENODEV; + SET(p, 0x0504, reg0); + SET(p, 0x0500, 0x008B); + + GET(p, 0x0502, &igot); got502 = (0xFF & igot); + GET(p, 0x0503, &igot); got503 = (0xFF & igot); + + JOT(16, "read_vt(., 0x%04X): has 0x%04X\n", + reg0, ((got503 << 8) | got502)); + + return (got503 << 8) | got502; +} +/****************************************************************************/ +/*--------------------------------------------------------------------------*/ +/* + * THESE APPEAR TO HAVE NO EFFECT ON EITHER VIDEO OR AUDIO. + */ +/*--------------------------------------------------------------------------*/ +int write_300(struct usb_device *p) +{ + if (!p) + return -ENODEV; + SET(p, 0x300, 0x0012); + SET(p, 0x350, 0x002D); + SET(p, 0x351, 0x0001); + SET(p, 0x352, 0x0000); + SET(p, 0x353, 0x0000); + SET(p, 0x300, 0x0080); + return 0; +} +/****************************************************************************/ +/*--------------------------------------------------------------------------*/ +/* + * NOTE: THE FOLLOWING IS NOT CHECKED: + * REGISTER 0x0F, WHICH IS INVOLVED IN CHROMINANCE AUTOMATIC GAIN CONTROL. + */ +/*--------------------------------------------------------------------------*/ +int check_saa(struct usb_device *p, bool ntsc) +{ + int i, ir, rc = 0; + struct saa7113config const *cfg; + if (!p) + return -ENODEV; + + cfg = (ntsc) ? saa7113configNTSC : saa7113configPAL; + for (i = 0; cfg[i].reg != 0xFF; i++) { + if (0x0F == cfg[i].reg) + continue; + ir = read_saa(p, cfg[i].reg); + if (ir != cfg[i].set) { + SAY("SAA register 0x%02X has 0x%02X, expected 0x%02X\n", + cfg[i].reg, ir, cfg[i].set); + rc--; + } + } + + return (rc < -8) ? rc : 0; +} +/****************************************************************************/ +int merit_saa(struct usb_device *p) +{ + int rc; + + if (!p) + return -ENODEV; + rc = read_saa(p, 0x1F); + return ((0 > rc) || (0x02 & rc)) ? 1 : 0; +} +/****************************************************************************/ +int ready_saa(struct usb_device *p) +{ + int j, rc, rate; + const int max = 5, marktime = PATIENCE/5; +/*--------------------------------------------------------------------------*/ +/* + * RETURNS 0 FOR INTERLACED 50 Hz + * 1 FOR NON-INTERLACED 50 Hz + * 2 FOR INTERLACED 60 Hz + * 3 FOR NON-INTERLACED 60 Hz +*/ +/*--------------------------------------------------------------------------*/ + if (!p) + return -ENODEV; + j = 0; + while (max > j) { + rc = read_saa(p, 0x1F); + if (0 <= rc) { + if (0 == (0x40 & rc)) + break; + if (1 == (0x01 & rc)) + break; + } + msleep(marktime); + j++; + } + if (max == j) + return -1; + else { + if (0x20 & rc) { + rate = 2; + JOT(8, "hardware detects 60 Hz\n"); + } else { + rate = 0; + JOT(8, "hardware detects 50 Hz\n"); + } + if (0x80 & rc) + JOT(8, "hardware detects interlacing\n"); + else { + rate++; + JOT(8, "hardware detects no interlacing\n"); + } + } + return 0; +} +/****************************************************************************/ +/*--------------------------------------------------------------------------*/ +/* + * NOTE: THE FOLLOWING ARE NOT CHECKED: + * REGISTERS 0x000, 0x002: FUNCTIONALITY IS NOT KNOWN + * REGISTER 0x100: ACCEPT ALSO (0x80 | stk1160config....[.].set) + */ +/*--------------------------------------------------------------------------*/ +int check_stk(struct usb_device *p, bool ntsc) +{ + int i, ir; + const struct stk1160config *cfg; + + if (!p) + return -ENODEV; + cfg = (ntsc) ? stk1160configNTSC : stk1160configPAL; + + for (i = 0; 0xFFF != cfg[i].reg; i++) { + if (0x000 == cfg[i].reg || 0x002 == cfg[i].reg) + continue; + + + ir = read_stk(p, cfg[i].reg); + if (0x100 == cfg[i].reg) { + if ((ir != (0xFF & cfg[i].set)) && + (ir != (0x80 | (0xFF & cfg[i].set))) && + (0xFFFF != cfg[i].set)) { + SAY("STK reg[0x%03X]=0x%02X expected 0x%02X\n", + cfg[i].reg, ir, cfg[i].set); + } + continue; + } + if ((ir != (0xFF & cfg[i].set)) && (0xFFFF != cfg[i].set)) + SAY("STK register 0x%03X has 0x%02X,expected 0x%02X\n", + cfg[i].reg, ir, cfg[i].set); + } + return 0; +} +/****************************************************************************/ +int read_saa(struct usb_device *p, u16 reg0) +{ + u8 igot; + + if (!p) + return -ENODEV; + SET(p, 0x208, reg0); + SET(p, 0x200, 0x20); + if (0 != wait_i2c(p)) + return -1; + igot = 0; + GET(p, 0x0209, &igot); + return igot; +} +/****************************************************************************/ +int read_stk(struct usb_device *p, u32 reg0) +{ + u8 igot; + + if (!p) + return -ENODEV; + igot = 0; + GET(p, reg0, &igot); + return igot; +} +/****************************************************************************/ +/*--------------------------------------------------------------------------*/ +/* + * HARDWARE USERSPACE INPUT NUMBER PHYSICAL INPUT DRIVER input VALUE + * + * CVBS+S-VIDEO 0 or 1 CVBS 1 + * FOUR-CVBS 0 or 1 CVBS1 1 + * FOUR-CVBS 2 CVBS2 2 + * FOUR-CVBS 3 CVBS3 3 + * FOUR-CVBS 4 CVBS4 4 + * CVBS+S-VIDEO 5 S-VIDEO 5 + * + * WHEN 5==input THE ARGUMENT mode MUST ALSO BE SUPPLIED: + * + * mode 7 => GAIN TO BE SET EXPLICITLY USING REGISTER 0x05 (UNTESTED) + * mode 9 => USE AUTOMATIC GAIN CONTROL (DEFAULT) + * +*/ +/*---------------------------------------------------------------------------*/ +int +select_input(struct usb_device *p, int input, int mode) +{ + int ir; + + if (!p) + return -ENODEV; + stop_100(p); + switch (input) { + case 0: + case 1: { + if (0 != write_saa(p, 0x02, 0x80)) + SAY("ERROR: failed to set SAA register 0x02 " + "for input %i\n", input); + + SET(p, 0x0000, 0x0098); + SET(p, 0x0002, 0x0078); + break; + } + case 2: { + if (0 != write_saa(p, 0x02, 0x80)) + SAY("ERROR: failed to set SAA register 0x02 " + "for input %i\n", input); + + SET(p, 0x0000, 0x0090); + SET(p, 0x0002, 0x0078); + break; + } + case 3: { + if (0 != write_saa(p, 0x02, 0x80)) + SAY("ERROR: failed to set SAA register 0x02 " + " for input %i\n", input); + + SET(p, 0x0000, 0x0088); + SET(p, 0x0002, 0x0078); + break; + } + case 4: { + if (0 != write_saa(p, 0x02, 0x80)) { + SAY("ERROR: failed to set SAA register 0x02 " + "for input %i\n", input); + } + SET(p, 0x0000, 0x0080); + SET(p, 0x0002, 0x0078); + break; + } + case 5: { + if (9 != mode) + mode = 7; + switch (mode) { + case 7: { + if (0 != write_saa(p, 0x02, 0x87)) + SAY("ERROR: failed to set SAA register 0x02 " + "for input %i\n", input); + + if (0 != write_saa(p, 0x05, 0xFF)) + SAY("ERROR: failed to set SAA register 0x05 " + "for input %i\n", input); + + break; + } + case 9: { + if (0 != write_saa(p, 0x02, 0x89)) + SAY("ERROR: failed to set SAA register 0x02 " + "for input %i\n", input); + + if (0 != write_saa(p, 0x05, 0x00)) + SAY("ERROR: failed to set SAA register 0x05 " + "for input %i\n", input); + + break; + } + default: + SAY("MISTAKE: bad mode: %i\n", mode); + return -1; + } + + if (0 != write_saa(p, 0x04, 0x00)) + SAY("ERROR: failed to set SAA register 0x04 " + "for input %i\n", input); + + if (0 != write_saa(p, 0x09, 0x80)) + SAY("ERROR: failed to set SAA register 0x09 " + "for input %i\n", input); + + SET(p, 0x0002, 0x0093); + break; + } + default: + SAY("ERROR: bad input: %i\n", input); + return -1; + } + + ir = read_stk(p, 0x00); + JOT(8, "STK register 0x00 has 0x%02X\n", ir); + ir = read_saa(p, 0x02); + JOT(8, "SAA register 0x02 has 0x%02X\n", ir); + + start_100(p); + + return 0; +} +/****************************************************************************/ +int set_resolution(struct usb_device *p, + u16 set0, u16 set1, u16 set2, u16 set3) +{ + u16 u0x0111, u0x0113, u0x0115, u0x0117; + + if (!p) + return -ENODEV; + u0x0111 = ((0xFF00 & set0) >> 8); + u0x0113 = ((0xFF00 & set1) >> 8); + u0x0115 = ((0xFF00 & set2) >> 8); + u0x0117 = ((0xFF00 & set3) >> 8); + + SET(p, 0x0110, (0x00FF & set0)); + SET(p, 0x0111, u0x0111); + SET(p, 0x0112, (0x00FF & set1)); + SET(p, 0x0113, u0x0113); + SET(p, 0x0114, (0x00FF & set2)); + SET(p, 0x0115, u0x0115); + SET(p, 0x0116, (0x00FF & set3)); + SET(p, 0x0117, u0x0117); + + return 0; +} +/****************************************************************************/ +int start_100(struct usb_device *p) +{ + u16 get116, get117, get0; + u8 igot116, igot117, igot; + + if (!p) + return -ENODEV; + GET(p, 0x0116, &igot116); + get116 = igot116; + GET(p, 0x0117, &igot117); + get117 = igot117; + SET(p, 0x0116, 0x0000); + SET(p, 0x0117, 0x0000); + + GET(p, 0x0100, &igot); + get0 = igot; + SET(p, 0x0100, (0x80 | get0)); + + SET(p, 0x0116, get116); + SET(p, 0x0117, get117); + + return 0; +} +/****************************************************************************/ +int stop_100(struct usb_device *p) +{ + u16 get0; + u8 igot; + + if (!p) + return -ENODEV; + GET(p, 0x0100, &igot); + get0 = igot; + SET(p, 0x0100, (0x7F & get0)); + return 0; +} +/****************************************************************************/ +/****************************************************************************/ +/*****************************************************************************/ +int wakeup_device(struct usb_device *pusb_device) +{ + if (!pusb_device) + return -ENODEV; + return usb_control_msg(pusb_device, usb_sndctrlpipe(pusb_device, 0), + USB_REQ_SET_FEATURE, + USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_DEVICE, + USB_DEVICE_REMOTE_WAKEUP, + 0, NULL, 0, 50000); +} +/*****************************************************************************/ +int +audio_setup(struct easycap *peasycap) +{ + struct usb_device *pusb_device; + u8 buffer[1]; + int rc, id1, id2; +/*---------------------------------------------------------------------------*/ +/* + * IMPORTANT: + * THE MESSAGE OF TYPE (USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE) + * CAUSES MUTING IF THE VALUE 0x0100 IS SENT. + * TO ENABLE AUDIO THE VALUE 0x0200 MUST BE SENT. + */ +/*---------------------------------------------------------------------------*/ + const u8 request = 0x01; + const u8 requesttype = USB_DIR_OUT | + USB_TYPE_CLASS | + USB_RECIP_INTERFACE; + const u16 value_unmute = 0x0200; + const u16 index = 0x0301; + const u16 length = 1; + + if (!peasycap) + return -EFAULT; + + pusb_device = peasycap->pusb_device; + if (!pusb_device) + return -ENODEV; + + JOM(8, "%02X %02X %02X %02X %02X %02X %02X %02X\n", + requesttype, request, + (0x00FF & value_unmute), + (0xFF00 & value_unmute) >> 8, + (0x00FF & index), + (0xFF00 & index) >> 8, + (0x00FF & length), + (0xFF00 & length) >> 8); + + buffer[0] = 0x01; + + rc = usb_control_msg(pusb_device, usb_sndctrlpipe(pusb_device, 0), + request, requesttype, value_unmute, + index, &buffer[0], length, 50000); + + JOT(8, "0x%02X=buffer\n", buffer[0]); + if (rc != (int)length) { + switch (rc) { + case -EPIPE: + SAY("usb_control_msg returned -EPIPE\n"); + break; + default: + SAY("ERROR: usb_control_msg returned %i\n", rc); + break; + } + } +/*--------------------------------------------------------------------------*/ +/* + * REGISTER 500: SETTING VALUE TO 0x0094 RESETS AUDIO CONFIGURATION ??? + * REGISTER 506: ANALOGUE AUDIO ATTENTUATOR ??? + * FOR THE CVBS+S-VIDEO HARDWARE: + * SETTING VALUE TO 0x0000 GIVES QUIET SOUND. + * THE UPPER BYTE SEEMS TO HAVE NO EFFECT. + * FOR THE FOUR-CVBS HARDWARE: + * SETTING VALUE TO 0x0000 SEEMS TO HAVE NO EFFECT. + * REGISTER 507: ANALOGUE AUDIO PREAMPLIFIER ON/OFF ??? + * FOR THE CVBS-S-VIDEO HARDWARE: + * SETTING VALUE TO 0x0001 GIVES VERY LOUD, DISTORTED SOUND. + * THE UPPER BYTE SEEMS TO HAVE NO EFFECT. + */ +/*--------------------------------------------------------------------------*/ + SET(pusb_device, 0x0500, 0x0094); + SET(pusb_device, 0x0500, 0x008C); + SET(pusb_device, 0x0506, 0x0001); + SET(pusb_device, 0x0507, 0x0000); + id1 = read_vt(pusb_device, 0x007C); + id2 = read_vt(pusb_device, 0x007E); + SAM("0x%04X:0x%04X is audio vendor id\n", id1, id2); +/*---------------------------------------------------------------------------*/ +/* + * SELECT AUDIO SOURCE "LINE IN" AND SET THE AUDIO GAIN. +*/ +/*---------------------------------------------------------------------------*/ + if (0 != audio_gainset(pusb_device, peasycap->gain)) + SAY("ERROR: audio_gainset() failed\n"); + check_vt(pusb_device); + return 0; +} +/*****************************************************************************/ +int check_vt(struct usb_device *pusb_device) +{ + int igot; + + if (!pusb_device) + return -ENODEV; + igot = read_vt(pusb_device, 0x0002); + if (0 > igot) + SAY("ERROR: failed to read VT1612A register 0x02\n"); + if (0x8000 & igot) + SAY("register 0x%02X muted\n", 0x02); + + igot = read_vt(pusb_device, 0x000E); + if (0 > igot) + SAY("ERROR: failed to read VT1612A register 0x0E\n"); + if (0x8000 & igot) + SAY("register 0x%02X muted\n", 0x0E); + + igot = read_vt(pusb_device, 0x0010); + if (0 > igot) + SAY("ERROR: failed to read VT1612A register 0x10\n"); + if (0x8000 & igot) + SAY("register 0x%02X muted\n", 0x10); + + igot = read_vt(pusb_device, 0x0012); + if (0 > igot) + SAY("ERROR: failed to read VT1612A register 0x12\n"); + if (0x8000 & igot) + SAY("register 0x%02X muted\n", 0x12); + + igot = read_vt(pusb_device, 0x0014); + if (0 > igot) + SAY("ERROR: failed to read VT1612A register 0x14\n"); + if (0x8000 & igot) + SAY("register 0x%02X muted\n", 0x14); + + igot = read_vt(pusb_device, 0x0016); + if (0 > igot) + SAY("ERROR: failed to read VT1612A register 0x16\n"); + if (0x8000 & igot) + SAY("register 0x%02X muted\n", 0x16); + + igot = read_vt(pusb_device, 0x0018); + if (0 > igot) + SAY("ERROR: failed to read VT1612A register 0x18\n"); + if (0x8000 & igot) + SAY("register 0x%02X muted\n", 0x18); + + igot = read_vt(pusb_device, 0x001C); + if (0 > igot) + SAY("ERROR: failed to read VT1612A register 0x1C\n"); + if (0x8000 & igot) + SAY("register 0x%02X muted\n", 0x1C); + + return 0; +} +/*****************************************************************************/ +/*---------------------------------------------------------------------------*/ +/* NOTE: THIS DOES INCREASE THE VOLUME DRAMATICALLY: + * audio_gainset(pusb_device, 0x000F); + * + * loud dB register 0x10 dB register 0x1C dB total + * 0 -34.5 0 -34.5 + * .. .... . .... + * 15 10.5 0 10.5 + * 16 12.0 0 12.0 + * 17 12.0 1.5 13.5 + * .. .... .... .... + * 31 12.0 22.5 34.5 +*/ +/*---------------------------------------------------------------------------*/ +int audio_gainset(struct usb_device *pusb_device, s8 loud) +{ + int igot; + u8 tmp; + u16 mute; + + if (!pusb_device) + return -ENODEV; + if (0 > loud) + loud = 0; + if (31 < loud) + loud = 31; + + write_vt(pusb_device, 0x0002, 0x8000); +/*---------------------------------------------------------------------------*/ + igot = read_vt(pusb_device, 0x000E); + if (0 > igot) { + SAY("ERROR: failed to read VT1612A register 0x0E\n"); + mute = 0x0000; + } else + mute = 0x8000 & ((unsigned int)igot); + mute = 0; + + if (16 > loud) + tmp = 0x01 | (0x001F & (((u8)(15 - loud)) << 1)); + else + tmp = 0; + + JOT(8, "0x%04X=(mute|tmp) for VT1612A register 0x0E\n", mute | tmp); + write_vt(pusb_device, 0x000E, (mute | tmp)); +/*---------------------------------------------------------------------------*/ + igot = read_vt(pusb_device, 0x0010); + if (0 > igot) { + SAY("ERROR: failed to read VT1612A register 0x10\n"); + mute = 0x0000; + } else + mute = 0x8000 & ((unsigned int)igot); + mute = 0; + + JOT(8, "0x%04X=(mute|tmp|(tmp<<8)) for VT1612A register 0x10,...0x18\n", + mute | tmp | (tmp << 8)); + write_vt(pusb_device, 0x0010, (mute | tmp | (tmp << 8))); + write_vt(pusb_device, 0x0012, (mute | tmp | (tmp << 8))); + write_vt(pusb_device, 0x0014, (mute | tmp | (tmp << 8))); + write_vt(pusb_device, 0x0016, (mute | tmp | (tmp << 8))); + write_vt(pusb_device, 0x0018, (mute | tmp | (tmp << 8))); +/*---------------------------------------------------------------------------*/ + igot = read_vt(pusb_device, 0x001C); + if (0 > igot) { + SAY("ERROR: failed to read VT1612A register 0x1C\n"); + mute = 0x0000; + } else + mute = 0x8000 & ((unsigned int)igot); + mute = 0; + + if (16 <= loud) + tmp = 0x000F & (u8)(loud - 16); + else + tmp = 0; + + JOT(8, "0x%04X=(mute|tmp|(tmp<<8)) for VT1612A register 0x1C\n", + mute | tmp | (tmp << 8)); + write_vt(pusb_device, 0x001C, (mute | tmp | (tmp << 8))); + write_vt(pusb_device, 0x001A, 0x0404); + write_vt(pusb_device, 0x0002, 0x0000); + return 0; +} +/*****************************************************************************/ +int audio_gainget(struct usb_device *pusb_device) +{ + int igot; + + if (!pusb_device) + return -ENODEV; + igot = read_vt(pusb_device, 0x001C); + if (0 > igot) + SAY("ERROR: failed to read VT1612A register 0x1C\n"); + return igot; +} +/*****************************************************************************/ |