#include "asterisk.h"
#include "asterisk/module.h"
#include "asterisk/channel.h"
#include "asterisk/pbx.h"
#include "asterisk/indications.h"
Go to the source code of this file.
Functions | |
static void | __reg_module (void) |
static void | __unreg_module (void) |
static int | load_module (void) |
static void * | milliwatt_alloc (struct ast_channel *chan, void *params) |
static int | milliwatt_exec (struct ast_channel *chan, void *data) |
static int | milliwatt_generate (struct ast_channel *chan, void *data, int len, int samples) |
static void | milliwatt_release (struct ast_channel *chan, void *data) |
static int | old_milliwatt_exec (struct ast_channel *chan) |
static int | unload_module (void) |
Variables | |
static struct ast_module_info | __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "Digital Milliwatt (mu-law) Test Application" , .key = "This paragraph is copyright (c) 2006 by Digium, Inc. \In order for your module to load, it must return this \key via a function called \"key\". Any code which \includes this paragraph must be licensed under the GNU \General Public License version 2 or later (at your \option). In addition to Digium's general reservations \of rights, Digium expressly reserves the right to \allow other parties to license this paragraph under \different terms. Any use of Digium, Inc. trademarks or \logos (including \"Asterisk\" or \"Digium\") without \express written permission of Digium, Inc. is prohibited.\n" , .buildopt_sum = "a9c98e5d177805051735cb5b0b16b0a0" , .load = load_module, .unload = unload_module, } |
static char * | app = "Milliwatt" |
static struct ast_module_info * | ast_module_info = &__mod_info |
static char * | descrip |
static char | digital_milliwatt [] = {0x1e,0x0b,0x0b,0x1e,0x9e,0x8b,0x8b,0x9e} |
static struct ast_generator | milliwattgen |
static char * | synopsis = "Generate a Constant 1004Hz tone at 0dbm (mu-law)" |
Definition in file app_milliwatt.c.
static void __reg_module | ( | void | ) | [static] |
Definition at line 162 of file app_milliwatt.c.
static void __unreg_module | ( | void | ) | [static] |
Definition at line 162 of file app_milliwatt.c.
static int load_module | ( | void | ) | [static] |
Definition at line 157 of file app_milliwatt.c.
References ast_register_application, and milliwatt_exec().
00158 { 00159 return ast_register_application(app, milliwatt_exec, synopsis, descrip); 00160 }
static void* milliwatt_alloc | ( | struct ast_channel * | chan, | |
void * | params | |||
) | [static] |
Definition at line 54 of file app_milliwatt.c.
References ast_calloc.
00055 { 00056 return ast_calloc(1, sizeof(int)); 00057 }
static int milliwatt_exec | ( | struct ast_channel * | chan, | |
void * | data | |||
) | [static] |
Definition at line 134 of file app_milliwatt.c.
References ast_playtones_start(), ast_safe_sleep(), ast_strlen_zero(), chan, and old_milliwatt_exec().
Referenced by load_module().
00135 { 00136 const char *options = data; 00137 int res = -1; 00138 00139 if (!ast_strlen_zero(options) && strchr(options, 'o')) { 00140 return old_milliwatt_exec(chan); 00141 } 00142 00143 res = ast_playtones_start(chan, 23255, "1004/1000", 0); 00144 00145 while (!res) { 00146 res = ast_safe_sleep(chan, 10000); 00147 } 00148 00149 return res; 00150 }
static int milliwatt_generate | ( | struct ast_channel * | chan, | |
void * | data, | |||
int | len, | |||
int | samples | |||
) | [static] |
Definition at line 65 of file app_milliwatt.c.
References ARRAY_LEN, AST_FORMAT_ULAW, AST_FRAME_VOICE, AST_FRIENDLY_OFFSET, ast_log(), ast_write(), buf, chan, ast_frame::data, ast_frame::datalen, errno, ast_frame::frametype, LOG_WARNING, ast_channel::name, ast_frame::ptr, and ast_frame::samples.
00066 { 00067 unsigned char buf[AST_FRIENDLY_OFFSET + 640]; 00068 const int maxsamples = ARRAY_LEN(buf); 00069 int i, *indexp = (int *) data; 00070 struct ast_frame wf = { 00071 .frametype = AST_FRAME_VOICE, 00072 .subclass = AST_FORMAT_ULAW, 00073 .offset = AST_FRIENDLY_OFFSET, 00074 .src = __FUNCTION__, 00075 }; 00076 wf.data.ptr = buf + AST_FRIENDLY_OFFSET; 00077 00078 /* Instead of len, use samples, because channel.c generator_force 00079 * generate(chan, tmp, 0, 160) ignores len. In any case, len is 00080 * a multiple of samples, given by number of samples times bytes per 00081 * sample. In the case of ulaw, len = samples. for signed linear 00082 * len = 2 * samples */ 00083 if (samples > maxsamples) { 00084 ast_log(LOG_WARNING, "Only doing %d samples (%d requested)\n", maxsamples, samples); 00085 samples = maxsamples; 00086 } 00087 00088 len = samples * sizeof (buf[0]); 00089 wf.datalen = len; 00090 wf.samples = samples; 00091 00092 /* create a buffer containing the digital milliwatt pattern */ 00093 for (i = 0; i < len; i++) { 00094 buf[AST_FRIENDLY_OFFSET + i] = digital_milliwatt[(*indexp)++]; 00095 *indexp &= 7; 00096 } 00097 00098 if (ast_write(chan,&wf) < 0) { 00099 ast_log(LOG_WARNING,"Failed to write frame to '%s': %s\n",chan->name,strerror(errno)); 00100 return -1; 00101 } 00102 00103 return 0; 00104 }
static void milliwatt_release | ( | struct ast_channel * | chan, | |
void * | data | |||
) | [static] |
static int old_milliwatt_exec | ( | struct ast_channel * | chan | ) | [static] |
Definition at line 112 of file app_milliwatt.c.
References ast_channel::_state, ast_activate_generator(), ast_answer(), ast_deactivate_generator(), AST_FORMAT_ULAW, ast_log(), ast_safe_sleep(), ast_set_read_format(), ast_set_write_format(), AST_STATE_UP, chan, LOG_WARNING, milliwattgen, and ast_channel::name.
Referenced by milliwatt_exec().
00113 { 00114 ast_set_write_format(chan, AST_FORMAT_ULAW); 00115 ast_set_read_format(chan, AST_FORMAT_ULAW); 00116 00117 if (chan->_state != AST_STATE_UP) { 00118 ast_answer(chan); 00119 } 00120 00121 if (ast_activate_generator(chan,&milliwattgen,"milliwatt") < 0) { 00122 ast_log(LOG_WARNING,"Failed to activate generator on '%s'\n",chan->name); 00123 return -1; 00124 } 00125 00126 while (!ast_safe_sleep(chan, 10000)) 00127 ; 00128 00129 ast_deactivate_generator(chan); 00130 00131 return -1; 00132 }
static int unload_module | ( | void | ) | [static] |
Definition at line 152 of file app_milliwatt.c.
References ast_unregister_application().
00153 { 00154 return ast_unregister_application(app); 00155 }
struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "Digital Milliwatt (mu-law) Test Application" , .key = "This paragraph is copyright (c) 2006 by Digium, Inc. \In order for your module to load, it must return this \key via a function called \"key\". Any code which \includes this paragraph must be licensed under the GNU \General Public License version 2 or later (at your \option). In addition to Digium's general reservations \of rights, Digium expressly reserves the right to \allow other parties to license this paragraph under \different terms. Any use of Digium, Inc. trademarks or \logos (including \"Asterisk\" or \"Digium\") without \express written permission of Digium, Inc. is prohibited.\n" , .buildopt_sum = "a9c98e5d177805051735cb5b0b16b0a0" , .load = load_module, .unload = unload_module, } [static] |
Definition at line 162 of file app_milliwatt.c.
char* app = "Milliwatt" [static] |
Definition at line 41 of file app_milliwatt.c.
struct ast_module_info* ast_module_info = &__mod_info [static] |
Definition at line 162 of file app_milliwatt.c.
char* descrip [static] |
Definition at line 45 of file app_milliwatt.c.
char digital_milliwatt[] = {0x1e,0x0b,0x0b,0x1e,0x9e,0x8b,0x8b,0x9e} [static] |
Definition at line 52 of file app_milliwatt.c.
struct ast_generator milliwattgen [static] |
Initial value:
{ alloc: milliwatt_alloc, release: milliwatt_release, generate: milliwatt_generate, }
Definition at line 106 of file app_milliwatt.c.
Referenced by old_milliwatt_exec().
char* synopsis = "Generate a Constant 1004Hz tone at 0dbm (mu-law)" [static] |
Definition at line 43 of file app_milliwatt.c.