libdlo working with HP dock plugged in (but not working with dock iteself)

1 files changed, 158 insertions, 0 deletions

diff --git a/src/dlo_defs.h b/src/dlo_defs.h
new file mode 100644
index 0000000..08baf21
--- /dev/null
+++ b/src/dlo_defs.h
@@ -0,0 +1,158 @@
+/** @file dlo_defs.h

+ *

+ *  @brief This file defines common macros and so on for the DisplayLink libdlo library.

+ *

+ *  DisplayLink Open Source Software (libdlo)

+ *  Copyright (C) 2009, DisplayLink

+ *  www.displaylink.com

+ *

+ *  This library is free software; you can redistribute it and/or modify it under

+ *  the terms of the GNU Library General Public License as published by the Free

+ *  Software Foundation; LGPL version 2, dated June 1991.

+ *

+ *  This library 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 Library General Public License for more

+ *  details.

+ *

+ *  You should have received a copy of the GNU Library General Public License

+ *  along with this library; if not, write to the Free Software Foundation, Inc.,

+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

+ */

+

+#ifndef DLO_DLOCOMMON_H

+#define DLO_DLOCOMMON_H        /**< Avoid multiple inclusion. */

+

+#include <stdint.h>

+#include <stdio.h>

+

+#ifdef DEBUG

+

+/** Assert that a given expression evaluates to a non-zero number.

+ *

+ *  @param  expr  The expression to test.

+ */

+#define ASSERT(expr) if (!(expr)) { printf("<%s:%u>\n  Assertion '%s' failed.\n", __FILE__, __LINE__, #expr); exit(1); }

+

+/** Variadic debugging printf() implementation.

+ *

+ *  @param  fmt  Format string for printed output.

+ */

+#define DPRINTF(fmt, ...) printf(fmt, ##__VA_ARGS__)

+

+#else

+

+/** Non-debug assert - does nothing.

+ *

+ *  @param  expr  The expression to test.

+ */

+#define ASSERT(expr)

+

+/** Non-debug printf - does nothing.

+ *

+ *  @param  fmt  Format string for printed output.

+ */

+#define DPRINTF(fmt, ...)

+

+#endif

+

+/** Get a couple of required attributes into a handy format. */

+#if __GNUC__ >= 3

+

+/* Check for portable attribute definitions and create them if they are missing */

+#ifndef inline

+#define inline inline __attribute__ ((always_inline))

+#endif

+#ifndef __packed

+#define __packed __attribute__ ((packed))

+#endif

+

+#else

+

+/* Toolchain is too old or doesn't support the attributes we need */

+#ifndef inline

+#define inline TOOLCHAIN_ERROR_NO_INLINE

+#endif

+#ifndef __packed

+#define __packed TOOLCHAIN_ERROR_NO_PACKED

+#endif

+

+#endif

+

+/** Read an unsigned 32 bit value from the address given (may be unaligned). */

+#define RD_L(ptr) (*(__packed uint32_t *)(ptr))

+

+/** Read an unsigned 16 bit value from the address given (may be unaligned). */

+#define RD_S(ptr) (*(__packed uint16_t *)(ptr))

+

+/** Read an unsigned byte from the address given. */

+#define RD_B(ptr) (*(uint8_t *)(ptr))

+

+/** Surpress warnings about unused variables. */

+#define IGNORE(x) do { (void) (x); } while (0)

+

+/** Record the line and source file associated with a particular type of error event. */

+#define REC_ERR() { snprintf(&err_file[0], 1024, "%s", __FILE__); err_line = __LINE__; }

+

+/** If a called function (cmd) returns an error code, return the error code from the calling function. */

+#define ERR(cmd) do { dlo_retcode_t __err = (cmd); if (__err != dlo_ok) return __err; } while(0)

+

+/** If a usb_ function call returns an error code, return an error and store the code in the @a usberr global. */

+#define UERR(cmd) do { usberr = (cmd); if (usberr < 0) return usb_error_grab(); } while (0)

+

+/** If a memory-allocating call returns NULL, return with a memory allocation error code. */

+#define NERR(ptr) do { if (!(ptr)) { REC_ERR(); return dlo_err_memory; } } while (0)

+

+/** If a function call (cmd) returns an error code, jump to the "error" label. Requires variable declaration: dlo_retcode_t err; */

+#define ERR_GOTO(cmd) do { err = (cmd); if (err != dlo_ok) goto error; } while(0)

+

+/** If a usb_ function call returns an error code, jump to the "error" label and store the usb error code in the @a usberr global. */

+#define UERR_GOTO(cmd) do { usberr = (cmd); if (usberr < 0) { err = usb_error_grab(); goto error; } } while(0)

+

+/** If a memory-allocating call returns NULL, jump to the "error" label with a memory allocation error code. */

+#define NERR_GOTO(ptr) do { if (!(ptr)) { REC_ERR(); err = dlo_err_memory; goto error; } } while(0)

+

+/** Return the size of a hash-defined string, excluding the terminator (unlike strlen(), it does count null bytes in the string). */

+#define DSIZEOF(str) (sizeof(str) - 1)

+

+/** Swap two integer values (assumes they are the same size). */

+#define SWAP(a, b) do { (a) = (a) ^ (b); (b) = (a) ^ (b); (a) = (a) ^ (b); } while (0)

+

+/** Magic macro for calling functions from pointer tables (after first checking the device structure pointer and the function pointer). */

+#define CALL(dev, fn, ...) dev ? ( dev->fn ? dev->fn(dev, ##__VA_ARGS__) : dlo_err_unsupported ) : dlo_err_bad_device

+

+/** Number of bytes per 16 bpp pixel! */

+#define BYTES_PER_16BPP (2)

+

+/** Number of bytes per 8 bpp pixel! */

+#define BYTES_PER_8BPP (1)

+

+/** Convert a framebuffer pixel format into a number of bytes per pixel. */

+#define FORMAT_TO_BYTES_PER_PIXEL(fmt) ((unsigned int)fmt > 1023u ? 1 : ((fmt) & DLO_PIXFMT_BYPP_MSK) >> DLO_PIXFMT_BYPP_SFT)

+

+/** Default buffer size for sending commands to the device. */

+#define BUF_SIZE (64*1024u)

+

+/** Threshold (bytes away from being full) for flushing the command buffer before adding any more commands to it. */

+#define BUF_HIGH_WATER_MARK (1*1024u)

+

+/** A 16 bits per pixel colour number (not normally used outside libdlo). */

+typedef uint16_t dlo_col16_t;

+

+/** An 8 bits per pixel colour number (2_rrrggbbb - not normally used outside libdlo). */

+typedef uint8_t dlo_col8_t;

+

+/** Integer used to store error number for last failed call to a dlo_usb_ function. */

+extern int32_t usberr;

+

+/** Integer used to store error number for last failed call to a dlo_eth_ function. */

+extern int32_t etherr;

+

+/** Source file name for the last recorded error event. */

+extern char err_file[1024];

+

+/** Source line number for last recorded error event. */

+extern uint32_t err_line;

+

+

+#endif