X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=hardware%2Fdemo%2Fdemo.c;h=7111097bb7657046d70c4f1efcf03e4cf39092cf;hb=HEAD;hp=57b7db1bbcd1abf27557778c97942e17cc84f74f;hpb=63570167d67cacab2ac56eaabb6219c7593bca9e;p=libsigrok.git diff --git a/hardware/demo/demo.c b/hardware/demo/demo.c deleted file mode 100644 index 57b7db1b..00000000 --- a/hardware/demo/demo.c +++ /dev/null @@ -1,361 +0,0 @@ -/* - * This file is part of the sigrok project. - * - * Copyright (C) 2010 Uwe Hermann - * Copyright (C) 2011 Olivier Fauchon - * - * 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 St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include -#include -#include -#include -#include "config.h" - -#define BUFSIZE 4096 - -#define NUM_PROBES 8 -#define NUM_TRIGGER_STAGES 4 -#define TRIGGER_TYPES "01" - -/* Software trigger implementation: positive values indicate trigger stage. */ -#define TRIGGER_FIRED -1 - -#define USB_MODEL_NAME "demodevice" -#define USB_VENDOR_NAME "sigrok" -#define USB_MODEL_VERSION "v1.0" - -#define GENMODE_RANDOM 1 -#define GENMODE_INC 2 - -static GThread *my_thread; -static int thread_running; - -static int capabilities[] = { - HWCAP_LOGIC_ANALYZER, - HWCAP_SAMPLERATE, - HWCAP_LIMIT_SAMPLES, - HWCAP_CONTINUOUS -}; - -/* Random selection of samplerates this "device" shall support. */ -static uint64_t supported_samplerates[] = { - KHZ(100), - KHZ(500), - MHZ(1), - MHZ(2), - MHZ(12), - MHZ(24), - 0, -}; - -static struct samplerates samplerates = { - KHZ(100), - MHZ(24), - 0, - supported_samplerates, -}; - -struct databag { - int pipe_fds[2]; - uint8_t sample_generator; - uint8_t thread_running; - uint64_t samples_counter; - int device_index; - int loop_sleep; - gpointer session_device_id; -}; - -/* List of struct sigrok_device_instance, maintained by opendev()/closedev(). */ -static GSList *device_instances = NULL; - -/* TODO: All of these should go in a device-specific struct. */ -static uint64_t cur_samplerate = 0; -static uint64_t limit_samples = -1; -// static uint8_t probe_mask = 0; -// static uint8_t trigger_mask[NUM_TRIGGER_STAGES] = { 0 }; -// static uint8_t trigger_value[NUM_TRIGGER_STAGES] = { 0 }; -// static uint8_t trigger_buffer[NUM_TRIGGER_STAGES] = { 0 }; - -// static int trigger_stage = TRIGGER_FIRED; - -static int hw_set_configuration(int device_index, int capability, void *value); -static void hw_stop_acquisition(int device_index, gpointer session_device_id); - -static int hw_init(char *deviceinfo) -{ - /* Avoid compiler warnings. */ - deviceinfo = deviceinfo; - - struct sigrok_device_instance *sdi; - - sdi = sigrok_device_instance_new(0, ST_ACTIVE, - USB_VENDOR_NAME, USB_MODEL_NAME, USB_MODEL_VERSION); - - if (!sdi) - return 0; - device_instances = g_slist_append(device_instances, sdi); - - return 1; -} - -static int hw_opendev(int device_index) -{ - /* Avoid compiler warnings. */ - device_index = device_index; - - /* Nothing needed so far. */ - return SIGROK_OK; -} - -static void hw_closedev(int device_index) -{ - /* Avoid compiler warnings. */ - device_index = device_index; - - /* Nothing needed so far. */ -} - -static void hw_cleanup(void) -{ - /* Nothing needed so far. */ -} - -static void *hw_get_device_info(int device_index, int device_info_id) -{ - struct sigrok_device_instance *sdi; - void *info = NULL; - - if (!(sdi = get_sigrok_device_instance(device_instances, device_index))) - return NULL; - - switch (device_info_id) { - case DI_INSTANCE: - info = sdi; - break; - case DI_NUM_PROBES: - info = GINT_TO_POINTER(NUM_PROBES); - break; - case DI_SAMPLERATES: - info = &samplerates; - break; - case DI_TRIGGER_TYPES: - info = TRIGGER_TYPES; - break; - case DI_CUR_SAMPLERATE: - info = &cur_samplerate; - break; - } - - return info; -} - -static int hw_get_status(int device_index) -{ - /* Avoid compiler warnings. */ - device_index = device_index; - - return 0; /* FIXME */ -} - -static int *hw_get_capabilities(void) -{ - return capabilities; -} - -static int hw_set_configuration(int device_index, int capability, void *value) -{ - int ret; - uint64_t *tmp_u64; - - /* Avoid compiler warnings. */ - device_index = device_index; - - if (capability == HWCAP_SAMPLERATE) { - cur_samplerate = *(uint64_t *) value; - ret = SIGROK_OK; - } else if (capability == HWCAP_PROBECONFIG) { - // ret = configure_probes((GSList *) value); FIXME - ret = SIGROK_OK; - } else if (capability == HWCAP_LIMIT_SAMPLES) { - tmp_u64 = value; - limit_samples = *tmp_u64; - ret = SIGROK_OK; - } else { - ret = SIGROK_ERR; - } - - return ret; -} - -static void samples_generator(uint8_t *buf, uint64_t size, void *data) -{ - struct databag *mydata = data; - uint64_t i; - - memset(buf, 0, size); - - switch (mydata->sample_generator) { - case GENMODE_RANDOM: /* Random */ - for (i = 0; i < size; i++) - *(buf + i) = (uint8_t)(rand() & 0xff); - break; - case GENMODE_INC: /* Simple increment */ - for (i = 0; i < size; i++) - *(buf + i) = i; - break; - } -} - -/* Thread function */ -static void thread_func(void *data) -{ - struct databag *mydata = data; - uint8_t buf[BUFSIZE]; - uint64_t nb_to_send = 0; - - while (thread_running) { - if (limit_samples) - nb_to_send = limit_samples - mydata->samples_counter; - else - nb_to_send = BUFSIZE; // CONTINUOUS MODE - - if (nb_to_send == 0) { - close(mydata->pipe_fds[1]); - thread_running = 0; - hw_stop_acquisition(mydata->device_index, - mydata->session_device_id); - } else if (nb_to_send > BUFSIZE) { - nb_to_send = BUFSIZE; - } - - samples_generator(buf, nb_to_send, data); - mydata->samples_counter += nb_to_send; - - write(mydata->pipe_fds[1], &buf, nb_to_send); - g_usleep(mydata->loop_sleep); - } -} - -/* Callback handling data */ -static int receive_data(int fd, int revents, void *user_data) -{ - struct datafeed_packet packet; - /* uint16_t samples[1000]; */ - char c[BUFSIZE]; - uint64_t z; - - /* Avoid compiler warnings. */ - revents = revents; - - z = read(fd, &c, BUFSIZE); - if (z > 0) { - packet.type = DF_LOGIC; - packet.length = z; - packet.unitsize = 1; - packet.payload = c; - session_bus(user_data, &packet); - } - return TRUE; -} - -static int hw_start_acquisition(int device_index, gpointer session_device_id) -{ - struct datafeed_packet *packet; - struct datafeed_header *header; - unsigned char *buf; - struct databag *mydata; - - mydata = malloc(sizeof(struct databag)); - if (!mydata) - return SIGROK_ERR_MALLOC; - - mydata->sample_generator = GENMODE_RANDOM; - mydata->session_device_id = session_device_id; - mydata->device_index = device_index; - mydata->samples_counter = 0; - mydata->loop_sleep = 100000; - - if (pipe(mydata->pipe_fds)) { - fprintf(stderr, "Pipe failed.\n"); - return SIGROK_ERR_MALLOC; /* FIXME */ - - } - source_add(mydata->pipe_fds[0], G_IO_IN | G_IO_ERR, 40, receive_data, - session_device_id); - - /* Run the demo thread. */ - g_thread_init(NULL); - thread_running = 1; - my_thread = - g_thread_create((GThreadFunc)thread_func, mydata, TRUE, NULL); - if (!my_thread) { - fprintf(stderr, "demo: Thread creation failed.\n"); - return SIGROK_ERR_MALLOC; /* FIXME */ - } - - packet = malloc(sizeof(struct datafeed_packet)); - header = malloc(sizeof(struct datafeed_header)); - buf = malloc(2048); - if (!packet || !header || !buf) - return SIGROK_ERR_MALLOC; - - /* FIXME */ - memset(buf, 0x55, 2048); - - packet->type = DF_HEADER; - packet->length = sizeof(struct datafeed_header); - packet->payload = (unsigned char *)header; - header->feed_version = 1; - gettimeofday(&header->starttime, NULL); - header->samplerate = cur_samplerate; - header->protocol_id = PROTO_RAW; - header->num_logic_probes = NUM_PROBES; - header->num_analog_probes = 0; - session_bus(session_device_id, packet); - free(header); - free(packet); - - return SIGROK_OK; -} - -/* This stops acquisition on ALL devices, ignoring device_index. */ -static void hw_stop_acquisition(int device_index, gpointer session_device_id) -{ - struct datafeed_packet packet; - - /* Avoid compiler warnings. */ - device_index = device_index; - - /* Send last packet. */ - packet.type = DF_END; - session_bus(session_device_id, &packet); -} - -struct device_plugin demo_plugin_info = { - "demo", - 1, - hw_init, - hw_cleanup, - hw_opendev, - hw_closedev, - hw_get_device_info, - hw_get_status, - hw_get_capabilities, - hw_set_configuration, - hw_start_acquisition, - hw_stop_acquisition, -};