/* * This file is part of the sigrok project. * * Copyright (C) 2010 Bert Vermeulen * * 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 3 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, see . */ #include #include #include #include #include #include #include "config.h" #include "sigrok.h" #include "analyzer.h" #define USB_VENDOR 0x0c12 #define USB_VENDOR_NAME "Zeroplus" #define USB_MODEL_NAME "Logic Cube" #define USB_MODEL_VERSION "" #define USB_INTERFACE 0 #define USB_CONFIGURATION 1 #define NUM_TRIGGER_STAGES 4 #define TRIGGER_TYPES "01" #define PACKET_SIZE 2048 // ?? typedef struct { unsigned short pid; char model_name[64]; unsigned int channels; unsigned int sample_depth; // in Ksamples/channel unsigned int max_sampling_freq; } model_t; /* Note -- 16032, 16064 and 16128 *usually* -- but not always -- have the same 128K sample depth */ model_t zeroplus_models[] = { {0x7009, "LAP-C(16064)", 16, 64, 100}, {0x700A, "LAP-C(16128)", 16, 128, 200}, {0x700B, "LAP-C(32128)", 32, 128, 200}, {0x700C, "LAP-C(321000)", 32, 1024, 200}, {0x700D, "LAP-C(322000)", 32, 2048, 200}, {0x700E, "LAP-C(16032)", 16, 32, 100}, {0x7016, "LAP-C(162000)", 16, 2048, 200}, }; static int capabilities[] = { HWCAP_LOGIC_ANALYZER, HWCAP_SAMPLERATE, HWCAP_PROBECONFIG, HWCAP_CAPTURE_RATIO, /* these are really implemented in the driver, not the hardware */ HWCAP_LIMIT_SAMPLES, 0 }; /* list of struct sigrok_device_instance, maintained by opendev() and closedev() */ static GSList *device_instances = NULL; static libusb_context *usb_context = NULL; /* The hardware supports more samplerates than these, but these are the options hardcoded into the vendor's Windows GUI */ // XXX we shouldn't support 150MHz and 200MHz on devices that don't go up that high static uint64_t supported_samplerates[] = { 100, 500, KHZ(1), KHZ(5), KHZ(25), KHZ(50), KHZ(100), KHZ(200), KHZ(400), KHZ(800), MHZ(1), MHZ(10), MHZ(25), MHZ(50), MHZ(80), MHZ(100), MHZ(150), MHZ(200), 0 }; static struct samplerates samplerates = { 0,0,0, supported_samplerates }; /* TODO: all of these should go in a device-specific struct */ static uint64_t cur_samplerate = 0; static uint64_t limit_samples = 0; int num_channels = 32; // XXX this is not getting initialized before it is needed :( uint64_t memory_size = 0; 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 hw_set_configuration(int device_index, int capability, void *value); static unsigned int get_memory_size(int type) { if (type == MEMORY_SIZE_8K) return 8*1024; else if (type == MEMORY_SIZE_64K) return 64*1024; else if (type == MEMORY_SIZE_128K) return 128*1024; else if (type == MEMORY_SIZE_512K) return 512*1024; else return 0; } struct sigrok_device_instance *zp_open_device(int device_index) { struct sigrok_device_instance *sdi; libusb_device **devlist; struct libusb_device_descriptor des; unsigned int j; int err, i; if(!(sdi = get_sigrok_device_instance(device_instances, device_index))) return NULL; libusb_get_device_list(usb_context, &devlist); if(sdi->status == ST_INACTIVE) { /* find the device by vendor, product, bus and address */ libusb_get_device_list(usb_context, &devlist); for(i = 0; devlist[i]; i++) { if( (err = libusb_get_device_descriptor(devlist[i], &des)) ) { g_warning("failed to get device descriptor: %d", err); continue; } if(des.idVendor == USB_VENDOR) { if(libusb_get_bus_number(devlist[i]) == sdi->usb->bus && libusb_get_device_address(devlist[i]) == sdi->usb->address) { for (j = 0; j < ARRAY_SIZE(zeroplus_models); j++) { if (des.idProduct == zeroplus_models[j].pid) { g_message("Found PID=%04X (%s)", des.idProduct, zeroplus_models[j].model_name); num_channels = zeroplus_models[j].channels; memory_size = zeroplus_models[j].sample_depth * 1024; break; } } if (num_channels == 0) { g_warning("Unknown ZeroPlus device %04X", des.idProduct); continue; } /* found it */ if( !(err = libusb_open(devlist[i], &(sdi->usb->devhdl))) ) { sdi->status = ST_ACTIVE; g_message("opened device %d on %d.%d interface %d", sdi->index, sdi->usb->bus, sdi->usb->address, USB_INTERFACE); } else { g_warning("failed to open device: %d", err); sdi = NULL; } } } } } else { /* status must be ST_ACTIVE, i.e. already in use... */ sdi = NULL; } libusb_free_device_list(devlist, 1); if(sdi && sdi->status != ST_ACTIVE) sdi = NULL; return sdi; } static void close_device(struct sigrok_device_instance *sdi) { if(sdi->usb->devhdl) { g_message("closing device %d on %d.%d interface %d", sdi->index, sdi->usb->bus, sdi->usb->address, USB_INTERFACE); libusb_release_interface(sdi->usb->devhdl, USB_INTERFACE); libusb_close(sdi->usb->devhdl); sdi->usb->devhdl = NULL; sdi->status = ST_INACTIVE; } } static int configure_probes(GSList *probes) { struct probe *probe; GSList *l; int probe_bit, stage, i; char *tc; probe_mask = 0; for(i = 0; i < NUM_TRIGGER_STAGES; i++) { trigger_mask[i] = 0; trigger_value[i] = 0; } stage = -1; for(l = probes; l; l = l->next) { probe = (struct probe *) l->data; if(probe->enabled == FALSE) continue; probe_bit = 1 << (probe->index - 1); probe_mask |= probe_bit; if(probe->trigger) { stage = 0; for(tc = probe->trigger; *tc; tc++) { trigger_mask[stage] |= probe_bit; if(*tc == '1') trigger_value[stage] |= probe_bit; stage++; if(stage > NUM_TRIGGER_STAGES) return SIGROK_ERR; } } } return SIGROK_OK; } /* * API callbacks */ static int hw_init(char *deviceinfo) { struct sigrok_device_instance *sdi; struct libusb_device_descriptor des; libusb_device **devlist; int err, devcnt, i; /* QUICK HACK */ deviceinfo = deviceinfo; if(libusb_init(&usb_context) != 0) { g_warning("Failed to initialize USB."); return 0; } /* find all ZeroPlus analyzers and add them to device list */ devcnt = 0; libusb_get_device_list(usb_context, &devlist); for(i = 0; devlist[i]; i++) { err = libusb_get_device_descriptor(devlist[i], &des); if(err != 0) { g_warning("failed to get device descriptor: %d", err); continue; } if(des.idVendor == USB_VENDOR) { /* definitely a Zeroplus */ /* TODO: any way to detect specific model/version in the zeroplus range? */ sdi = sigrok_device_instance_new(devcnt, ST_INACTIVE, USB_VENDOR_NAME, USB_MODEL_NAME, USB_MODEL_VERSION); if(!sdi) return 0; device_instances = g_slist_append(device_instances, sdi); sdi->usb = usb_device_instance_new(libusb_get_bus_number(devlist[i]), libusb_get_device_address(devlist[i]), NULL); devcnt++; } } libusb_free_device_list(devlist, 1); return devcnt; } static int hw_opendev(int device_index) { struct sigrok_device_instance *sdi; int err; if( !(sdi = zp_open_device(device_index)) ) { g_warning("unable to open device"); return SIGROK_ERR; } err = libusb_claim_interface(sdi->usb->devhdl, USB_INTERFACE); if(err != 0) { g_warning("Unable to claim interface: %d", err); return SIGROK_ERR; } analyzer_reset(sdi->usb->devhdl); analyzer_initialize(sdi->usb->devhdl); analyzer_configure(sdi->usb->devhdl); analyzer_set_memory_size(MEMORY_SIZE_512K); // analyzer_set_freq(g_freq, g_freq_scale); analyzer_set_trigger_count(1); // analyzer_set_ramsize_trigger_address((((100 - g_pre_trigger) * get_memory_size(g_memory_size)) / 100) >> 2); analyzer_set_ramsize_trigger_address((100 * get_memory_size(MEMORY_SIZE_512K) / 100) >> 2); /* if (g_double_mode == 1) analyzer_set_compression(COMPRESSION_DOUBLE); else if (g_compression == 1) analyzer_set_compression(COMPRESSION_ENABLE); else */ analyzer_set_compression(COMPRESSION_NONE); if(cur_samplerate == 0) { /* sample rate hasn't been set; default to the slowest it has */ if(hw_set_configuration(device_index, HWCAP_SAMPLERATE, &samplerates.low) == SIGROK_ERR) return SIGROK_ERR; } return SIGROK_OK; } static void hw_closedev(int device_index) { struct sigrok_device_instance *sdi; if( (sdi = get_sigrok_device_instance(device_instances, device_index)) ) close_device(sdi); } static void hw_cleanup(void) { GSList *l; /* properly close all devices */ for(l = device_instances; l; l = l->next) close_device( (struct sigrok_device_instance *) l->data); /* and free all their memory */ for(l = device_instances; l; l = l->next) g_free(l->data); g_slist_free(device_instances); device_instances = NULL; if(usb_context) libusb_exit(usb_context); usb_context = NULL; } static void *hw_get_device_info(int device_index, int device_info_id) { struct sigrok_device_instance *sdi; void *info; if( !(sdi = get_sigrok_device_instance(device_instances, device_index)) ) return NULL; info = NULL; switch(device_info_id) { case DI_INSTANCE: info = sdi; break; case DI_NUM_PROBES: info = GINT_TO_POINTER(num_channels); 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) { struct sigrok_device_instance *sdi; sdi = get_sigrok_device_instance(device_instances, device_index); if(sdi) return sdi->status; else return ST_NOT_FOUND; } static int *hw_get_capabilities(void) { return capabilities; } // XXX this will set the same samplerate for all devices static int set_configuration_samplerate(uint64_t samplerate) { g_message("%s(%llu)", __FUNCTION__, samplerate); if (samplerate > MHZ(1)) analyzer_set_freq(samplerate / MHZ(1), FREQ_SCALE_MHZ); else if (samplerate > KHZ(1)) analyzer_set_freq(samplerate / KHZ(1), FREQ_SCALE_KHZ); else analyzer_set_freq(samplerate , FREQ_SCALE_HZ); cur_samplerate = samplerate; return SIGROK_OK; } static int hw_set_configuration(int device_index, int capability, void *value) { struct sigrok_device_instance *sdi; uint64_t *tmp_u64; if( !(sdi = get_sigrok_device_instance(device_instances, device_index)) ) return SIGROK_ERR; switch (capability) { case HWCAP_SAMPLERATE: tmp_u64 = value; return set_configuration_samplerate(*tmp_u64); case HWCAP_PROBECONFIG: return configure_probes( (GSList *) value); case HWCAP_LIMIT_SAMPLES: limit_samples = strtoull(value, NULL, 10); return SIGROK_OK; default: return SIGROK_ERR; } } static int hw_start_acquisition(int device_index, gpointer session_device_id) { struct sigrok_device_instance *sdi; struct datafeed_packet packet; struct datafeed_header header; int res; unsigned int packet_num; unsigned char *buf; if( !(sdi = get_sigrok_device_instance(device_instances, device_index))) return SIGROK_ERR; analyzer_start(sdi->usb->devhdl); g_message("Waiting for data"); analyzer_wait_data(sdi->usb->devhdl); g_message("Stop address = 0x%x", analyzer_get_stop_address(sdi->usb->devhdl)); g_message("Now address = 0x%x", analyzer_get_now_address(sdi->usb->devhdl)); g_message("Trigger address = 0x%x", analyzer_get_trigger_address(sdi->usb->devhdl)); 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_probes = num_channels; session_bus(session_device_id, &packet); buf = g_malloc(PACKET_SIZE); if (!buf) return SIGROK_ERR; analyzer_read_start(sdi->usb->devhdl); /* send the incoming transfer to the session bus */ for(packet_num = 0; packet_num < (memory_size * 4 / PACKET_SIZE); packet_num++) { res = analyzer_read_data(sdi->usb->devhdl, buf, PACKET_SIZE); // g_message("Tried to read %llx bytes, actually read %x bytes", PACKET_SIZE, res); packet.type = DF_LOGIC32; packet.length = PACKET_SIZE; packet.payload = buf; session_bus(session_device_id, &packet); } analyzer_read_stop(sdi->usb->devhdl); g_free(buf); packet.type = DF_END; session_bus(session_device_id, &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; struct sigrok_device_instance *sdi; packet.type = DF_END; session_bus(session_device_id, &packet); if( !(sdi = get_sigrok_device_instance(device_instances, device_index))) return; // XXX cry? analyzer_reset(sdi->usb->devhdl); /* TODO: need to cancel and free any queued up transfers */ } struct device_plugin zeroplus_logic_cube_plugin_info = { "zeroplus-logic-cube", 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 };