diff options
author | RajithaY <rajithax.yerrumsetty@intel.com> | 2017-04-25 03:31:15 -0700 |
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committer | Rajitha Yerrumchetty <rajithax.yerrumsetty@intel.com> | 2017-05-22 06:48:08 +0000 |
commit | bb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch) | |
tree | ca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/roms/ipxe/src/core/console.c | |
parent | a14b48d18a9ed03ec191cf16b162206998a895ce (diff) |
Adding qemu as a submodule of KVMFORNFV
This Patch includes the changes to add qemu as a submodule to
kvmfornfv repo and make use of the updated latest qemu for the
execution of all testcase
Change-Id: I1280af507a857675c7f81d30c95255635667bdd7
Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>
Diffstat (limited to 'qemu/roms/ipxe/src/core/console.c')
-rw-r--r-- | qemu/roms/ipxe/src/core/console.c | 164 |
1 files changed, 0 insertions, 164 deletions
diff --git a/qemu/roms/ipxe/src/core/console.c b/qemu/roms/ipxe/src/core/console.c deleted file mode 100644 index 7fd00036f..000000000 --- a/qemu/roms/ipxe/src/core/console.c +++ /dev/null @@ -1,164 +0,0 @@ -#include "stddef.h" -#include <ipxe/console.h> -#include <ipxe/process.h> -#include <ipxe/nap.h> - -/** @file */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -/** Current console usage */ -int console_usage = CONSOLE_USAGE_STDOUT; - -/** Console width */ -unsigned int console_width = CONSOLE_DEFAULT_WIDTH; - -/** Console height */ -unsigned int console_height = CONSOLE_DEFAULT_HEIGHT; - -/** - * Write a single character to each console device - * - * @v character Character to be written - * - * The character is written out to all enabled console devices, using - * each device's console_driver::putchar() method. - */ -void putchar ( int character ) { - struct console_driver *console; - - /* Automatic LF -> CR,LF translation */ - if ( character == '\n' ) - putchar ( '\r' ); - - for_each_table_entry ( console, CONSOLES ) { - if ( ( ! ( console->disabled & CONSOLE_DISABLED_OUTPUT ) ) && - ( console_usage & console->usage ) && - console->putchar ) - console->putchar ( character ); - } -} - -/** - * Check to see if any input is available on any console - * - * @ret console Console device that has input available, or NULL - * - * All enabled console devices are checked once for available input - * using each device's console_driver::iskey() method. The first - * console device that has available input will be returned, if any. - */ -static struct console_driver * has_input ( void ) { - struct console_driver *console; - - for_each_table_entry ( console, CONSOLES ) { - if ( ( ! ( console->disabled & CONSOLE_DISABLED_INPUT ) ) && - console->iskey ) { - if ( console->iskey () ) - return console; - } - } - return NULL; -} - -/** - * Read a single character from any console - * - * @ret character Character read from a console. - * - * A character will be read from the first enabled console device that - * has input available using that console's console_driver::getchar() - * method. If no console has input available to be read, this method - * will block. To perform a non-blocking read, use something like - * - * @code - * - * int key = iskey() ? getchar() : -1; - * - * @endcode - * - * The character read will not be echoed back to any console. - */ -int getchar ( void ) { - struct console_driver *console; - int character; - - while ( 1 ) { - console = has_input(); - if ( console && console->getchar ) { - character = console->getchar (); - break; - } - - /* Doze for a while (until the next interrupt). This works - * fine, because the keyboard is interrupt-driven, and the - * timer interrupt (approx. every 50msec) takes care of the - * serial port, which is read by polling. This reduces the - * power dissipation of a modern CPU considerably, and also - * makes Etherboot waiting for user interaction waste a lot - * less CPU time in a VMware session. - */ - cpu_nap(); - - /* Keep processing background tasks while we wait for - * input. - */ - step(); - } - - /* CR -> LF translation */ - if ( character == '\r' ) - character = '\n'; - - return character; -} - -/** - * Check for available input on any console - * - * @ret is_available Input is available on a console - * - * All enabled console devices are checked once for available input - * using each device's console_driver::iskey() method. If any console - * device has input available, this call will return true. If this - * call returns true, you can then safely call getchar() without - * blocking. - */ -int iskey ( void ) { - return has_input() ? 1 : 0; -} - -/** - * Configure console - * - * @v config Console configuration - * @ret rc Return status code - * - * The configuration is passed to all configurable consoles, including - * those which are currently disabled. Consoles may choose to enable - * or disable themselves depending upon the configuration. - * - * If configuration fails, then all consoles will be reset. - */ -int console_configure ( struct console_configuration *config ) { - struct console_driver *console; - int rc; - - /* Reset console width and height */ - console_set_size ( CONSOLE_DEFAULT_WIDTH, CONSOLE_DEFAULT_HEIGHT ); - - /* Try to configure each console */ - for_each_table_entry ( console, CONSOLES ) { - if ( ( console->configure ) && - ( ( rc = console->configure ( config ) ) != 0 ) ) - goto err; - } - - return 0; - - err: - /* Reset all consoles, avoiding a potential infinite loop */ - if ( config ) - console_reset(); - return rc; -} |