X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;f=hardware%2Fopenbench-logic-sniffer%2Fols.c;h=2faadf6505a549598340fd71eb3c59699774de8c;hb=4fe9a6da79561d82f2c88c39e222ae86c5507900;hp=e139e0d381a186ab7e2ffc8f96ff3dccfc51151c;hpb=2458ea651409c8252d33dba5b5cfe9313f3e4899;p=libsigrok.git diff --git a/hardware/openbench-logic-sniffer/ols.c b/hardware/openbench-logic-sniffer/ols.c index e139e0d3..2faadf65 100644 --- a/hardware/openbench-logic-sniffer/ols.c +++ b/hardware/openbench-logic-sniffer/ols.c @@ -24,7 +24,9 @@ #include #include #include -#ifndef _WIN32 +#ifdef _WIN32 +#include +#else #include #endif #include @@ -37,120 +39,79 @@ #endif #include #include +#include +#include "ols.h" + +#ifdef _WIN32 +#define O_NONBLOCK FIONBIO +#endif -#define NUM_PROBES 32 -#define NUM_TRIGGER_STAGES 4 -#define TRIGGER_TYPES "01" -#define SERIAL_SPEED B115200 -/* TODO: SERIAL_ bits, parity, stop bit */ -#define CLOCK_RATE 100000000 - -/* Command opcodes */ -#define CMD_RESET 0x00 -#define CMD_ID 0x02 -#define CMD_SET_FLAGS 0x82 -#define CMD_SET_DIVIDER 0x80 -#define CMD_RUN 0x01 -#define CMD_CAPTURE_SIZE 0x81 -#define CMD_SET_TRIGGER_MASK_0 0xc0 -#define CMD_SET_TRIGGER_MASK_1 0xc4 -#define CMD_SET_TRIGGER_MASK_2 0xc8 -#define CMD_SET_TRIGGER_MASK_3 0xcc -#define CMD_SET_TRIGGER_VALUE_0 0xc1 -#define CMD_SET_TRIGGER_VALUE_1 0xc5 -#define CMD_SET_TRIGGER_VALUE_2 0xc9 -#define CMD_SET_TRIGGER_VALUE_3 0xcd -#define CMD_SET_TRIGGER_CONFIG_0 0xc2 -#define CMD_SET_TRIGGER_CONFIG_1 0xc6 -#define CMD_SET_TRIGGER_CONFIG_2 0xca -#define CMD_SET_TRIGGER_CONFIG_3 0xce - -/* Bitmasks for CMD_FLAGS */ -#define FLAG_DEMUX 0x01 -#define FLAG_FILTER 0x02 -#define FLAG_CHANNELGROUP_1 0x04 -#define FLAG_CHANNELGROUP_2 0x08 -#define FLAG_CHANNELGROUP_3 0x10 -#define FLAG_CHANNELGROUP_4 0x20 -#define FLAG_CLOCK_EXTERNAL 0x40 -#define FLAG_CLOCK_INVERTED 0x80 -#define FLAG_RLE 0x0100 static int capabilities[] = { - HWCAP_LOGIC_ANALYZER, - HWCAP_SAMPLERATE, - HWCAP_CAPTURE_RATIO, - HWCAP_LIMIT_SAMPLES, + SR_HWCAP_LOGIC_ANALYZER, + SR_HWCAP_SAMPLERATE, + SR_HWCAP_CAPTURE_RATIO, + SR_HWCAP_LIMIT_SAMPLES, 0, }; -static struct samplerates samplerates = { - 10, - MHZ(200), - 1, - 0, +/* default supported samplerates, can be overridden by device metadata */ +static struct sr_samplerates samplerates = { + SR_HZ(10), + SR_MHZ(200), + SR_HZ(1), + NULL, }; -/* List of struct serial_device_instance */ +/* List of struct sr_serial_device_instance */ static GSList *device_instances = NULL; -/* Current state of the flag register */ -static uint32_t flag_reg = 0; -static uint64_t cur_samplerate = 0; -static uint64_t limit_samples = 0; -/* - * Pre/post trigger capture ratio, in percentage. - * 0 means no pre-trigger data. - */ -static int capture_ratio = 0; -static uint32_t probe_mask = 0xffffffff; -static uint32_t trigger_mask[4] = { 0, 0, 0, 0 }; -static uint32_t trigger_value[4] = { 0, 0, 0, 0 }; static int send_shortcommand(int fd, uint8_t command) { char buf[1]; - g_message("ols: sending cmd 0x%.2x", command); + g_debug("ols: sending cmd 0x%.2x", command); buf[0] = command; - if (write(fd, buf, 1) != 1) - return SIGROK_ERR; + if (serial_write(fd, buf, 1) != 1) + return SR_ERR; - return SIGROK_OK; + return SR_OK; } static int send_longcommand(int fd, uint8_t command, uint32_t data) { char buf[5]; - g_message("ols: sending cmd 0x%.2x data 0x%.8x", command, data); + g_debug("ols: sending cmd 0x%.2x data 0x%.8x", command, data); buf[0] = command; buf[1] = (data & 0xff000000) >> 24; buf[2] = (data & 0xff0000) >> 16; buf[3] = (data & 0xff00) >> 8; buf[4] = data & 0xff; - if (write(fd, buf, 5) != 5) - return SIGROK_ERR; + if (serial_write(fd, buf, 5) != 5) + return SR_ERR; - return SIGROK_OK; + return SR_OK; } -static int configure_probes(GSList *probes) +static int configure_probes(struct ols_device *ols, GSList *probes) { - struct probe *probe; + struct sr_probe *probe; GSList *l; int probe_bit, stage, i; char *tc; - probe_mask = 0; + ols->probe_mask = 0; for (i = 0; i < NUM_TRIGGER_STAGES; i++) { - trigger_mask[i] = 0; - trigger_value[i] = 0; + ols->trigger_mask[i] = 0; + ols->trigger_value[i] = 0; } + ols->num_stages = 0; for (l = probes; l; l = l->next) { - probe = (struct probe *)l->data; + probe = (struct sr_probe *)l->data; if (!probe->enabled) continue; @@ -159,46 +120,194 @@ static int configure_probes(GSList *probes) * flag register. */ probe_bit = 1 << (probe->index - 1); - probe_mask |= probe_bit; + ols->probe_mask |= probe_bit; - if (probe->trigger) + if (!probe->trigger) continue; /* Configure trigger mask and value. */ stage = 0; for (tc = probe->trigger; tc && *tc; tc++) { - trigger_mask[stage] |= probe_bit; + ols->trigger_mask[stage] |= probe_bit; if (*tc == '1') - trigger_value[stage] |= probe_bit; + ols->trigger_value[stage] |= probe_bit; stage++; if (stage > 3) /* * TODO: Only supporting parallel mode, with * up to 4 stages. */ - return SIGROK_ERR; + return SR_ERR; } + if (stage > ols->num_stages) + ols->num_stages = stage; } - return SIGROK_OK; + return SR_OK; } -static void byteswap(uint32_t * in) +static uint32_t reverse16(uint32_t in) { uint32_t out; - out = (*in & 0xff) << 8; - out |= (*in & 0xff00) >> 8; - out |= (*in & 0xff0000) << 8; - out |= (*in & 0xff000000) >> 8; - *in = out; + out = (in & 0xff) << 8; + out |= (in & 0xff00) >> 8; + out |= (in & 0xff0000) << 8; + out |= (in & 0xff000000) >> 8; + + return out; } -static int hw_init(char *deviceinfo) +static uint32_t reverse32(uint32_t in) { - struct sigrok_device_instance *sdi; + uint32_t out; + + out = (in & 0xff) << 24; + out |= (in & 0xff00) << 8; + out |= (in & 0xff0000) >> 8; + out |= (in & 0xff000000) >> 24; + + return out; +} + +static struct ols_device *ols_device_new(void) +{ + struct ols_device *ols; + + ols = g_malloc0(sizeof(struct ols_device)); + ols->trigger_at = -1; + ols->probe_mask = 0xffffffff; + ols->cur_samplerate = SR_KHZ(200); + + return ols; +} + +static struct sr_device_instance *get_metadata(int fd) +{ + struct sr_device_instance *sdi; + struct ols_device *ols; + uint32_t tmp_int; + uint8_t key, type, token; + GString *tmp_str, *devicename, *version; + gchar tmp_c; + + sdi = sr_device_instance_new(0, SR_ST_INACTIVE, NULL, NULL, NULL); + ols = ols_device_new(); + sdi->priv = ols; + + devicename = g_string_new(""); + version = g_string_new(""); + + key = 0xff; + while (key) { + if (serial_read(fd, &key, 1) != 1 || key == 0x00) + break; + type = key >> 5; + token = key & 0x1f; + switch (type) { + case 0: + /* NULL-terminated string */ + tmp_str = g_string_new(""); + while (serial_read(fd, &tmp_c, 1) == 1 && tmp_c != '\0') + g_string_append_c(tmp_str, tmp_c); + g_debug("ols: got metadata key 0x%.2x value '%s'", key, tmp_str->str); + switch (token) { + case 0x01: + /* Device name */ + devicename = g_string_append(devicename, tmp_str->str); + break; + case 0x02: + /* FPGA firmware version */ + if (version->len) + g_string_append(version, ", "); + g_string_append(version, "FPGA version "); + g_string_append(version, tmp_str->str); + break; + case 0x03: + /* Ancillary version */ + if (version->len) + g_string_append(version, ", "); + g_string_append(version, "Ancillary version "); + g_string_append(version, tmp_str->str); + break; + default: + g_message("ols: unknown token 0x%.2x: '%s'", token, tmp_str->str); + break; + } + g_string_free(tmp_str, TRUE); + break; + case 1: + /* 32-bit unsigned integer */ + if (serial_read(fd, &tmp_int, 4) != 4) + break; + tmp_int = reverse32(tmp_int); + g_debug("ols: got metadata key 0x%.2x value 0x%.8x", key, tmp_int); + switch (token) { + case 0x00: + /* Number of usable probes */ + ols->num_probes = tmp_int; + break; + case 0x01: + /* Amount of sample memory available (bytes) */ + ols->max_samples = tmp_int; + break; + case 0x02: + /* Amount of dynamic memory available (bytes) */ + /* what is this for? */ + break; + case 0x03: + /* Maximum sample rate (hz) */ + ols->max_samplerate = tmp_int; + break; + case 0x04: + /* protocol version */ + ols->protocol_version = tmp_int; + break; + default: + g_message("ols: unknown token 0x%.2x: 0x%.8x", token, tmp_int); + break; + } + break; + case 2: + /* 8-bit unsigned integer */ + if (serial_read(fd, &tmp_c, 1) != 1) + break; + g_debug("ols: got metadata key 0x%.2x value 0x%.2x", key, tmp_c); + switch (token) { + case 0x00: + /* Number of usable probes */ + ols->num_probes = tmp_c; + break; + case 0x01: + /* protocol version */ + ols->protocol_version = tmp_c; + break; + default: + g_message("ols: unknown token 0x%.2x: 0x%.2x", token, tmp_c); + break; + } + break; + default: + /* unknown type */ + break; + } + } + + sdi->model = devicename->str; + sdi->version = version->str; + g_string_free(devicename, FALSE); + g_string_free(version, FALSE); + + return sdi; +} + + +static int hw_init(const char *deviceinfo) +{ + struct sr_device_instance *sdi; + struct ols_device *ols; GSList *ports, *l; - GPollFD *fds; + GPollFD *fds, probefd; int devcnt, final_devcnt, num_ports, fd, ret, i; char buf[8], **device_names, **serial_params; @@ -224,25 +333,20 @@ static int hw_init(char *deviceinfo) * we do all the sending first, then wait for all of them to * respond with g_poll(). */ - g_message("probing %s...", (char *)l->data); -#ifdef _WIN32 - // FIXME - // hdl = serial_open(l->data, 0); -#else + g_message("ols: probing %s...", (char *)l->data); fd = serial_open(l->data, O_RDWR | O_NONBLOCK); -#endif if (fd != -1) { serial_params[devcnt] = serial_backup_params(fd); serial_set_params(fd, 115200, 8, 0, 1, 2); - ret = SIGROK_OK; + ret = SR_OK; for (i = 0; i < 5; i++) { if ((ret = send_shortcommand(fd, - CMD_RESET)) != SIGROK_OK) { + CMD_RESET)) != SR_OK) { /* Serial port is not writable. */ break; } } - if (ret != SIGROK_OK) { + if (ret != SR_OK) { serial_restore_params(fd, serial_params[devcnt]); serial_close(fd); @@ -262,38 +366,49 @@ static int hw_init(char *deviceinfo) final_devcnt = 0; g_poll(fds, devcnt, 1); + for (i = 0; i < devcnt; i++) { - if (fds[i].revents == G_IO_IN) { - if (read(fds[i].fd, buf, 4) == 4) { - if (!strncmp(buf, "1SLO", 4) - || !strncmp(buf, "1ALS", 4)) { - if (!strncmp(buf, "1SLO", 4)) - sdi = sigrok_device_instance_new - (final_devcnt, ST_INACTIVE, - "Openbench", - "Logic Sniffer", "v1.0"); - else - sdi = sigrok_device_instance_new - (final_devcnt, ST_INACTIVE, - "Sump", "Logic Analyzer", - "v1.0"); - sdi->serial = serial_device_instance_new - (device_names[i], -1); - device_instances = - g_slist_append(device_instances, sdi); - final_devcnt++; - serial_close(fds[i].fd); - fds[i].fd = 0; - } - } - free(device_names[i]); + if (fds[i].revents != G_IO_IN) + continue; + if (serial_read(fds[i].fd, buf, 4) != 4) + continue; + if (strncmp(buf, "1SLO", 4) && strncmp(buf, "1ALS", 4)) + continue; + + /* definitely using the OLS protocol, check if it supports + * the metadata command + */ + send_shortcommand(fds[i].fd, CMD_METADATA); + probefd.fd = fds[i].fd; + probefd.events = G_IO_IN; + if (g_poll(&probefd, 1, 10) > 0) { + /* got metadata */ + sdi = get_metadata(fds[i].fd); + sdi->index = final_devcnt; + } else { + /* not an OLS -- some other board that uses the sump protocol */ + sdi = sr_device_instance_new(final_devcnt, SR_ST_INACTIVE, + "Sump", "Logic Analyzer", "v1.0"); + ols = ols_device_new(); + ols->num_probes = 32; + sdi->priv = ols; } + sdi->serial = sr_serial_device_instance_new(device_names[i], -1); + device_instances = g_slist_append(device_instances, sdi); + final_devcnt++; + serial_close(fds[i].fd); + fds[i].fd = 0; + } + + /* clean up after all the probing */ + for (i = 0; i < devcnt; i++) { if (fds[i].fd != 0) { serial_restore_params(fds[i].fd, serial_params[i]); serial_close(fds[i].fd); } free(serial_params[i]); + free(device_names[i]); } free(fds); @@ -301,52 +416,50 @@ static int hw_init(char *deviceinfo) free(serial_params); g_slist_free(ports); - cur_samplerate = samplerates.low; - return final_devcnt; } static int hw_opendev(int device_index) { - struct sigrok_device_instance *sdi; + struct sr_device_instance *sdi; - if (!(sdi = get_sigrok_device_instance(device_instances, device_index))) - return SIGROK_ERR; + if (!(sdi = sr_get_device_instance(device_instances, device_index))) + return SR_ERR; sdi->serial->fd = serial_open(sdi->serial->port, O_RDWR); if (sdi->serial->fd == -1) - return SIGROK_ERR; + return SR_ERR; - sdi->status = ST_ACTIVE; + sdi->status = SR_ST_ACTIVE; - return SIGROK_OK; + return SR_OK; } static void hw_closedev(int device_index) { - struct sigrok_device_instance *sdi; + struct sr_device_instance *sdi; - if (!(sdi = get_sigrok_device_instance(device_instances, device_index))) + if (!(sdi = sr_get_device_instance(device_instances, device_index))) return; if (sdi->serial->fd != -1) { serial_close(sdi->serial->fd); sdi->serial->fd = -1; - sdi->status = ST_INACTIVE; + sdi->status = SR_ST_INACTIVE; } } static void hw_cleanup(void) { GSList *l; - struct sigrok_device_instance *sdi; + struct sr_device_instance *sdi; /* Properly close all devices. */ for (l = device_instances; l; l = l->next) { sdi = l->data; if (sdi->serial->fd != -1) serial_close(sdi->serial->fd); - sigrok_device_instance_free(sdi); + sr_device_instance_free(sdi); } g_slist_free(device_instances); device_instances = NULL; @@ -354,28 +467,30 @@ static void hw_cleanup(void) static void *hw_get_device_info(int device_index, int device_info_id) { - struct sigrok_device_instance *sdi; + struct sr_device_instance *sdi; + struct ols_device *ols; void *info; - if (!(sdi = get_sigrok_device_instance(device_instances, device_index))) + if (!(sdi = sr_get_device_instance(device_instances, device_index))) return NULL; + ols = sdi->priv; info = NULL; switch (device_info_id) { - case DI_INSTANCE: + case SR_DI_INSTANCE: info = sdi; break; - case DI_NUM_PROBES: + case SR_DI_NUM_PROBES: info = GINT_TO_POINTER(NUM_PROBES); break; - case DI_SAMPLERATES: + case SR_DI_SAMPLERATES: info = &samplerates; break; - case DI_TRIGGER_TYPES: + case SR_DI_TRIGGER_TYPES: info = (char *)TRIGGER_TYPES; break; - case DI_CUR_SAMPLERATE: - info = &cur_samplerate; + case SR_DI_CUR_SAMPLERATE: + info = &ols->cur_samplerate; break; } @@ -384,10 +499,10 @@ static void *hw_get_device_info(int device_index, int device_info_id) static int hw_get_status(int device_index) { - struct sigrok_device_instance *sdi; + struct sr_device_instance *sdi; - if (!(sdi = get_sigrok_device_instance(device_instances, device_index))) - return ST_NOT_FOUND; + if (!(sdi = sr_get_device_instance(device_instances, device_index))) + return SR_ST_NOT_FOUND; return sdi->status; } @@ -397,69 +512,71 @@ static int *hw_get_capabilities(void) return capabilities; } -static int set_configuration_samplerate(struct sigrok_device_instance *sdi, +static int set_configuration_samplerate(struct sr_device_instance *sdi, uint64_t samplerate) { - uint32_t divider; + struct ols_device *ols; - if (samplerate < samplerates.low || samplerate > samplerates.high) - return SIGROK_ERR_SAMPLERATE; + ols = sdi->priv; + if (ols->max_samplerate) { + if (samplerate > ols->max_samplerate) + return SR_ERR_SAMPLERATE; + } else if (samplerate < samplerates.low || samplerate > samplerates.high) + return SR_ERR_SAMPLERATE; + ols->cur_samplerate = samplerate; if (samplerate > CLOCK_RATE) { - flag_reg |= FLAG_DEMUX; - divider = (CLOCK_RATE * 2 / samplerate) - 1; + ols->flag_reg |= FLAG_DEMUX; + ols->cur_samplerate_divider = (CLOCK_RATE * 2 / samplerate) - 1; } else { - flag_reg &= ~FLAG_DEMUX; - divider = (CLOCK_RATE / samplerate) - 1; + ols->flag_reg &= ~FLAG_DEMUX; + ols->cur_samplerate_divider = (CLOCK_RATE / samplerate) - 1; } -#ifdef _WIN32 - // FIXME - // divider = htonl(divider); -#else - divider = htonl(divider); -#endif - - g_message("setting samplerate to %" PRIu64 " Hz (divider %u, demux %s)", - samplerate, divider, flag_reg & FLAG_DEMUX ? "on" : "off"); - - if (send_longcommand(sdi->serial->fd, CMD_SET_DIVIDER, - divider) != SIGROK_OK) - return SIGROK_ERR; - cur_samplerate = samplerate; - return SIGROK_OK; + return SR_OK; } static int hw_set_configuration(int device_index, int capability, void *value) { - struct sigrok_device_instance *sdi; + struct sr_device_instance *sdi; + struct ols_device *ols; int ret; uint64_t *tmp_u64; - if (!(sdi = get_sigrok_device_instance(device_instances, device_index))) - return SIGROK_ERR; + if (!(sdi = sr_get_device_instance(device_instances, device_index))) + return SR_ERR; + ols = sdi->priv; - if (sdi->status != ST_ACTIVE) - return SIGROK_ERR; + if (sdi->status != SR_ST_ACTIVE) + return SR_ERR; - if (capability == HWCAP_SAMPLERATE) { + switch (capability) { + case SR_HWCAP_SAMPLERATE: tmp_u64 = value; ret = set_configuration_samplerate(sdi, *tmp_u64); - } else if (capability == HWCAP_PROBECONFIG) { - ret = configure_probes((GSList *) value); - } else if (capability == HWCAP_LIMIT_SAMPLES) { + break; + case SR_HWCAP_PROBECONFIG: + ret = configure_probes(ols, (GSList *) value); + break; + case SR_HWCAP_LIMIT_SAMPLES: tmp_u64 = value; - limit_samples = *tmp_u64; - ret = SIGROK_OK; - } else if (capability == HWCAP_CAPTURE_RATIO) { - capture_ratio = strtol(value, NULL, 10); - if (capture_ratio < 0 || capture_ratio > 100) { - capture_ratio = 0; - ret = SIGROK_ERR; + if (*tmp_u64 < MIN_NUM_SAMPLES) + return SR_ERR; + ols->limit_samples = *tmp_u64; + g_message("ols: sample limit %" PRIu64, ols->limit_samples); + ret = SR_OK; + break; + case SR_HWCAP_CAPTURE_RATIO: + tmp_u64 = value; + ols->capture_ratio = *tmp_u64; + if (ols->capture_ratio < 0 || ols->capture_ratio > 100) { + ols->capture_ratio = 0; + ret = SR_ERR; } else - ret = SIGROK_OK; - } else { - ret = SIGROK_ERR; + ret = SR_OK; + break; + default: + ret = SR_ERR; } return ret; @@ -467,55 +584,70 @@ static int hw_set_configuration(int device_index, int capability, void *value) static int receive_data(int fd, int revents, void *user_data) { - static unsigned int num_transfers = 0; - static int num_bytes = 0; - static char last_sample[4] = { 0xff, 0xff, 0xff, 0xff }; - static unsigned char sample[4] = { 0, 0, 0, 0 }; - static unsigned char tmp_sample[4]; - int count, buflen, num_channels, i, j; - struct datafeed_packet packet; + struct sr_datafeed_packet packet; + struct sr_device_instance *sdi; + struct ols_device *ols; + GSList *l; + int count, buflen, num_channels, offset, i, j; unsigned char byte, *buffer; - if (num_transfers++ == 0) { + /* find this device's ols_device struct by its fd */ + ols = NULL; + for (l = device_instances; l; l = l->next) { + sdi = l->data; + if (sdi->serial->fd == fd) { + ols = sdi->priv; + break; + } + } + if (!ols) + /* shouldn't happen */ + return TRUE; + + if (ols->num_transfers++ == 0) { /* * First time round, means the device started sending data, * and will not stop until done. If it stops sending for * longer than it takes to send a byte, that means it's * finished. We'll double that to 30ms to be sure... */ - source_remove(fd); - source_add(fd, G_IO_IN, 100, receive_data, user_data); + sr_source_remove(fd); + sr_source_add(fd, G_IO_IN, 30, receive_data, user_data); + ols->raw_sample_buf = malloc(ols->limit_samples * 4); + /* fill with 1010... for debugging */ + memset(ols->raw_sample_buf, 0x82, ols->limit_samples * 4); } num_channels = 0; for (i = 0x20; i > 0x02; i /= 2) { - if ((flag_reg & i) == 0) + if ((ols->flag_reg & i) == 0) num_channels++; } if (revents == G_IO_IN - && num_transfers / num_channels <= limit_samples) { - if (read(fd, &byte, 1) != 1) + && ols->num_transfers / num_channels <= ols->limit_samples) { + if (serial_read(fd, &byte, 1) != 1) return FALSE; - sample[num_bytes++] = byte; - if (num_bytes == num_channels) { + ols->sample[ols->num_bytes++] = byte; + g_debug("ols: received byte 0x%.2x", byte); + if (ols->num_bytes == num_channels) { /* Got a full sample. */ - if (flag_reg & FLAG_RLE) { + g_debug("ols: received sample 0x%.*x", ols->num_bytes * 2, (int) *ols->sample); + if (ols->flag_reg & FLAG_RLE) { /* * In RLE mode -1 should never come in as a * sample, because bit 31 is the "count" flag. * TODO: Endianness may be wrong here, could be * sample[3]. */ - if (sample[0] & 0x80 - && !(last_sample[0] & 0x80)) { - count = (int)(*sample) & 0x7fffffff; + if (ols->sample[0] & 0x80 + && !(ols->last_sample[0] & 0x80)) { + count = (int)(*ols->sample) & 0x7fffffff; buffer = g_malloc(count); buflen = 0; for (i = 0; i < count; i++) { - memcpy(buffer + buflen, - last_sample, 4); + memcpy(buffer + buflen, ols->last_sample, 4); buflen += 4; } } else { @@ -525,12 +657,12 @@ static int receive_data(int fd, int revents, void *user_data) * to this -- but this one is still a * part of the stream. */ - buffer = sample; + buffer = ols->sample; buflen = 4; } } else { /* No compression. */ - buffer = sample; + buffer = ols->sample; buflen = 4; } @@ -545,46 +677,78 @@ static int receive_data(int fd, int revents, void *user_data) * the number of probes. */ j = 0; - memset(tmp_sample, 0, 4); + memset(ols->tmp_sample, 0, 4); for (i = 0; i < 4; i++) { - if ((flag_reg & (8 >> i)) == 0) { + if (((ols->flag_reg >> 2) & (1 << i)) == 0) { /* * This channel group was * enabled, copy from received * sample. */ - tmp_sample[i] = sample[j++]; + ols->tmp_sample[i] = ols->sample[j++]; } } - memcpy(sample, tmp_sample, 4); + memcpy(ols->sample, ols->tmp_sample, 4); + g_debug("ols: full sample 0x%.8x", (int) *ols->sample); } - /* Send it all to the session bus. */ - packet.type = DF_LOGIC32; - packet.length = buflen; - packet.payload = buffer; - session_bus(user_data, &packet); - if (buffer == sample) - memcpy(last_sample, buffer, num_channels); + /* the OLS sends its sample buffer backwards. + * store it in reverse order here, so we can dump + * this on the session bus later. + */ + offset = (ols->limit_samples - ols->num_transfers / num_channels) * 4; + memcpy(ols->raw_sample_buf + offset, ols->sample, 4); + + if (buffer == ols->sample) + memcpy(ols->last_sample, buffer, num_channels); else g_free(buffer); - memset(sample, 0, 4); - num_bytes = 0; + memset(ols->sample, 0, 4); + ols->num_bytes = 0; } } else { /* * This is the main loop telling us a timeout was reached, or * we've acquired all the samples we asked for -- we're done. + * Send the (properly-ordered) buffer to the frontend. */ -#ifndef _WIN32 - /* TODO: Move to serial.c? */ - tcflush(fd, TCIOFLUSH); -#endif + if (ols->trigger_at != -1) { + /* a trigger was set up, so we need to tell the frontend + * about it. + */ + if (ols->trigger_at > 0) { + /* there are pre-trigger samples, send those first */ + packet.type = SR_DF_LOGIC; + packet.length = ols->trigger_at * 4; + packet.unitsize = 4; + packet.payload = ols->raw_sample_buf; + sr_session_bus(user_data, &packet); + } + + packet.type = SR_DF_TRIGGER; + packet.length = 0; + sr_session_bus(user_data, &packet); + + packet.type = SR_DF_LOGIC; + packet.length = (ols->limit_samples * 4) - (ols->trigger_at * 4); + packet.unitsize = 4; + packet.payload = ols->raw_sample_buf + ols->trigger_at * 4; + sr_session_bus(user_data, &packet); + } else { + packet.type = SR_DF_LOGIC; + packet.length = ols->limit_samples * 4; + packet.unitsize = 4; + packet.payload = ols->raw_sample_buf; + sr_session_bus(user_data, &packet); + } + free(ols->raw_sample_buf); + + serial_flush(fd); serial_close(fd); - packet.type = DF_END; + packet.type = SR_DF_END; packet.length = 0; - session_bus(user_data, &packet); + sr_session_bus(user_data, &packet); } return TRUE; @@ -592,156 +756,156 @@ static int receive_data(int fd, int revents, void *user_data) static int hw_start_acquisition(int device_index, gpointer session_device_id) { - int i; - struct datafeed_packet *packet; - struct datafeed_header *header; - struct sigrok_device_instance *sdi; + struct sr_datafeed_packet *packet; + struct sr_datafeed_header *header; + struct sr_device_instance *sdi; + struct ols_device *ols; + uint32_t trigger_config[4]; uint32_t data; uint16_t readcount, delaycount; uint8_t changrp_mask; + int i; - if (!(sdi = get_sigrok_device_instance(device_instances, device_index))) - return SIGROK_ERR; + if (!(sdi = sr_get_device_instance(device_instances, device_index))) + return SR_ERR; + ols = sdi->priv; - if (sdi->status != ST_ACTIVE) - return SIGROK_ERR; + if (sdi->status != SR_ST_ACTIVE) + return SR_ERR; - if (trigger_mask[0]) { - /* Trigger masks */ - if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_MASK_0, - trigger_mask[0]) != SIGROK_OK) - return SIGROK_ERR; - if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_MASK_1, - trigger_mask[1]) != SIGROK_OK) - return SIGROK_ERR; - if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_MASK_2, - trigger_mask[2]) != SIGROK_OK) - return SIGROK_ERR; - if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_MASK_3, - trigger_mask[3]) != SIGROK_OK) - return SIGROK_ERR; + readcount = ols->limit_samples / 4; - if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_VALUE_0, - trigger_value[0]) != SIGROK_OK) - return SIGROK_ERR; - if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_VALUE_1, - trigger_value[1]) != SIGROK_OK) - return SIGROK_ERR; - if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_VALUE_2, - trigger_value[2]) != SIGROK_OK) - return SIGROK_ERR; - if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_VALUE_3, - trigger_value[3]) != SIGROK_OK) - return SIGROK_ERR; + memset(trigger_config, 0, 16); + trigger_config[ols->num_stages - 1] |= 0x08; + if (ols->trigger_mask[0]) { + delaycount = readcount * (1 - ols->capture_ratio / 100.0); + ols->trigger_at = (readcount - delaycount) * 4 - ols->num_stages; - /* Trigger configuration */ - /* - * TODO: The start flag should only be on the last used - * stage I think... - */ + if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_MASK_0, + reverse32(ols->trigger_mask[0])) != SR_OK) + return SR_ERR; + if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_VALUE_0, + reverse32(ols->trigger_value[0])) != SR_OK) + return SR_ERR; if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_CONFIG_0, - 0x00000008) != SIGROK_OK) - return SIGROK_ERR; + trigger_config[0]) != SR_OK) + return SR_ERR; + + if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_MASK_1, + reverse32(ols->trigger_mask[1])) != SR_OK) + return SR_ERR; + if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_VALUE_1, + reverse32(ols->trigger_value[1])) != SR_OK) + return SR_ERR; if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_CONFIG_1, - 0x00000000) != SIGROK_OK) - return SIGROK_ERR; + trigger_config[1]) != SR_OK) + return SR_ERR; + + if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_MASK_2, + reverse32(ols->trigger_mask[2])) != SR_OK) + return SR_ERR; + if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_VALUE_2, + reverse32(ols->trigger_value[2])) != SR_OK) + return SR_ERR; if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_CONFIG_2, - 0x00000000) != SIGROK_OK) - return SIGROK_ERR; + trigger_config[2]) != SR_OK) + return SR_ERR; + + if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_MASK_3, + reverse32(ols->trigger_mask[3])) != SR_OK) + return SR_ERR; + if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_VALUE_3, + reverse32(ols->trigger_value[3])) != SR_OK) + return SR_ERR; if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_CONFIG_3, - 0x00000000) != SIGROK_OK) - return SIGROK_ERR; - delaycount = limit_samples / 4 * (capture_ratio / 100); + trigger_config[3]) != SR_OK) + return SR_ERR; } else { if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_MASK_0, - trigger_mask[0]) != SIGROK_OK) - return SIGROK_ERR; + ols->trigger_mask[0]) != SR_OK) + return SR_ERR; if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_VALUE_0, - trigger_value[0]) != SIGROK_OK) - return SIGROK_ERR; + ols->trigger_value[0]) != SR_OK) + return SR_ERR; if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_CONFIG_0, - 0x00000008) != SIGROK_OK) - return SIGROK_ERR; - delaycount = limit_samples / 4; + 0x00000008) != SR_OK) + return SR_ERR; + delaycount = readcount; } - set_configuration_samplerate(sdi, cur_samplerate); + g_message("ols: setting samplerate to %" PRIu64 " Hz (divider %u, demux %s)", + ols->cur_samplerate, ols->cur_samplerate_divider, + ols->flag_reg & FLAG_DEMUX ? "on" : "off"); + if (send_longcommand(sdi->serial->fd, CMD_SET_DIVIDER, + reverse32(ols->cur_samplerate_divider)) != SR_OK) + return SR_ERR; /* Send sample limit and pre/post-trigger capture ratio. */ - readcount = limit_samples / 4; - if (flag_reg & FLAG_DEMUX) { - data = (delaycount - 8) & 0xfff8 << 13; - data |= (readcount - 4) & 0xffff; - } else { - flag_reg |= FLAG_FILTER; - data = (readcount - 1) << 16; - data |= (delaycount - 1); - } - /* TODO: htonl()? */ - byteswap(&data); - if (send_longcommand(sdi->serial->fd, CMD_CAPTURE_SIZE, - data) != SIGROK_OK) - return SIGROK_ERR; + data = ((readcount - 1) & 0xffff) << 16; + data |= (delaycount - 1) & 0xffff; + if (send_longcommand(sdi->serial->fd, CMD_CAPTURE_SIZE, reverse16(data)) != SR_OK) + return SR_ERR; /* * Enable/disable channel groups in the flag register according to the - * probe mask. The register stores them backwards, hence shift right - * from 1000. + * probe mask. */ changrp_mask = 0; for (i = 0; i < 4; i++) { - if (probe_mask & (0xff << (i * 8))) - changrp_mask |= (8 >> i); + if (ols->probe_mask & (0xff << (i * 8))) + changrp_mask |= (1 << i); } /* The flag register wants them here, and 1 means "disable channel". */ - flag_reg |= ~(changrp_mask << 2) & 0x3c; - - data = flag_reg << 24; - if (send_longcommand(sdi->serial->fd, CMD_SET_FLAGS, data) != SIGROK_OK) - return SIGROK_ERR; + ols->flag_reg |= ~(changrp_mask << 2) & 0x3c; + ols->flag_reg |= FLAG_FILTER; + data = ols->flag_reg << 24; + if (send_longcommand(sdi->serial->fd, CMD_SET_FLAGS, data) != SR_OK) + return SR_ERR; /* Start acquisition on the device. */ - if (send_shortcommand(sdi->serial->fd, CMD_RUN) != SIGROK_OK) - return SIGROK_ERR; + if (send_shortcommand(sdi->serial->fd, CMD_RUN) != SR_OK) + return SR_ERR; - source_add(sdi->serial->fd, G_IO_IN, -1, receive_data, - session_device_id); + sr_source_add(sdi->serial->fd, G_IO_IN, -1, receive_data, + session_device_id); /* Send header packet to the session bus. */ - packet = g_malloc(sizeof(struct datafeed_packet)); - header = g_malloc(sizeof(struct datafeed_header)); + packet = g_malloc(sizeof(struct sr_datafeed_packet)); + header = g_malloc(sizeof(struct sr_datafeed_header)); if (!packet || !header) - return SIGROK_ERR; - packet->type = DF_HEADER; - packet->length = sizeof(struct datafeed_header); + return SR_ERR; + packet->type = SR_DF_HEADER; + packet->length = sizeof(struct sr_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_PROBES; - session_bus(session_device_id, packet); + header->samplerate = ols->cur_samplerate; + header->protocol_id = SR_PROTO_RAW; + header->num_logic_probes = NUM_PROBES; + header->num_analog_probes = 0; + sr_session_bus(session_device_id, packet); g_free(header); g_free(packet); - return SIGROK_OK; + return SR_OK; } static void hw_stop_acquisition(int device_index, gpointer session_device_id) { - struct datafeed_packet packet; + struct sr_datafeed_packet packet; - /* QUICK HACK */ + /* Avoid compiler warnings. */ device_index = device_index; - packet.type = DF_END; + packet.type = SR_DF_END; packet.length = 0; - session_bus(session_device_id, &packet); + sr_session_bus(session_device_id, &packet); } -struct device_plugin ols_plugin_info = { - "sump", +struct sr_device_plugin ols_plugin_info = { + "ols", + "Openbench Logic Sniffer", 1, hw_init, hw_cleanup,