static int hw_dev_acquisition_stop(const struct sr_dev_inst *sdi,
void *cb_data);
-static int sigma_read(void *buf, size_t size, struct context *ctx)
+static int sigma_read(void *buf, size_t size, struct dev_context *devc)
{
int ret;
- ret = ftdi_read_data(&ctx->ftdic, (unsigned char *)buf, size);
+ ret = ftdi_read_data(&devc->ftdic, (unsigned char *)buf, size);
if (ret < 0) {
sr_err("sigma: ftdi_read_data failed: %s",
- ftdi_get_error_string(&ctx->ftdic));
+ ftdi_get_error_string(&devc->ftdic));
}
return ret;
}
-static int sigma_write(void *buf, size_t size, struct context *ctx)
+static int sigma_write(void *buf, size_t size, struct dev_context *devc)
{
int ret;
- ret = ftdi_write_data(&ctx->ftdic, (unsigned char *)buf, size);
+ ret = ftdi_write_data(&devc->ftdic, (unsigned char *)buf, size);
if (ret < 0) {
sr_err("sigma: ftdi_write_data failed: %s",
- ftdi_get_error_string(&ctx->ftdic));
+ ftdi_get_error_string(&devc->ftdic));
} else if ((size_t) ret != size) {
sr_err("sigma: ftdi_write_data did not complete write.");
}
}
static int sigma_write_register(uint8_t reg, uint8_t *data, size_t len,
- struct context *ctx)
+ struct dev_context *devc)
{
size_t i;
uint8_t buf[len + 2];
buf[idx++] = REG_DATA_HIGH_WRITE | (data[i] >> 4);
}
- return sigma_write(buf, idx, ctx);
+ return sigma_write(buf, idx, devc);
}
-static int sigma_set_register(uint8_t reg, uint8_t value, struct context *ctx)
+static int sigma_set_register(uint8_t reg, uint8_t value, struct dev_context *devc)
{
- return sigma_write_register(reg, &value, 1, ctx);
+ return sigma_write_register(reg, &value, 1, devc);
}
static int sigma_read_register(uint8_t reg, uint8_t *data, size_t len,
- struct context *ctx)
+ struct dev_context *devc)
{
uint8_t buf[3];
buf[1] = REG_ADDR_HIGH | (reg >> 4);
buf[2] = REG_READ_ADDR;
- sigma_write(buf, sizeof(buf), ctx);
+ sigma_write(buf, sizeof(buf), devc);
- return sigma_read(data, len, ctx);
+ return sigma_read(data, len, devc);
}
-static uint8_t sigma_get_register(uint8_t reg, struct context *ctx)
+static uint8_t sigma_get_register(uint8_t reg, struct dev_context *devc)
{
uint8_t value;
- if (1 != sigma_read_register(reg, &value, 1, ctx)) {
+ if (1 != sigma_read_register(reg, &value, 1, devc)) {
sr_err("sigma: sigma_get_register: 1 byte expected");
return 0;
}
}
static int sigma_read_pos(uint32_t *stoppos, uint32_t *triggerpos,
- struct context *ctx)
+ struct dev_context *devc)
{
uint8_t buf[] = {
REG_ADDR_LOW | READ_TRIGGER_POS_LOW,
};
uint8_t result[6];
- sigma_write(buf, sizeof(buf), ctx);
+ sigma_write(buf, sizeof(buf), devc);
- sigma_read(result, sizeof(result), ctx);
+ sigma_read(result, sizeof(result), devc);
*triggerpos = result[0] | (result[1] << 8) | (result[2] << 16);
*stoppos = result[3] | (result[4] << 8) | (result[5] << 16);
}
static int sigma_read_dram(uint16_t startchunk, size_t numchunks,
- uint8_t *data, struct context *ctx)
+ uint8_t *data, struct dev_context *devc)
{
size_t i;
uint8_t buf[4096];
/* Send the startchunk. Index start with 1. */
buf[0] = startchunk >> 8;
buf[1] = startchunk & 0xff;
- sigma_write_register(WRITE_MEMROW, buf, 2, ctx);
+ sigma_write_register(WRITE_MEMROW, buf, 2, devc);
/* Read the DRAM. */
buf[idx++] = REG_DRAM_BLOCK;
buf[idx++] = REG_DRAM_WAIT_ACK;
}
- sigma_write(buf, idx, ctx);
+ sigma_write(buf, idx, devc);
- return sigma_read(data, numchunks * CHUNK_SIZE, ctx);
+ return sigma_read(data, numchunks * CHUNK_SIZE, devc);
}
/* Upload trigger look-up tables to Sigma. */
-static int sigma_write_trigger_lut(struct triggerlut *lut, struct context *ctx)
+static int sigma_write_trigger_lut(struct triggerlut *lut, struct dev_context *devc)
{
int i;
uint8_t tmp[2];
tmp[1] |= 0x80;
sigma_write_register(WRITE_TRIGGER_SELECT0, tmp, sizeof(tmp),
- ctx);
- sigma_set_register(WRITE_TRIGGER_SELECT1, 0x30 | i, ctx);
+ devc);
+ sigma_set_register(WRITE_TRIGGER_SELECT1, 0x30 | i, devc);
}
/* Send the parameters */
sigma_write_register(WRITE_TRIGGER_SELECT0, (uint8_t *) &lut->params,
- sizeof(lut->params), ctx);
+ sizeof(lut->params), devc);
return SR_OK;
}
{
GSList *l;
struct sr_dev_inst *sdi;
- struct context *ctx;
+ struct drv_context *drvc;
+ struct dev_context *devc;
+
+ drvc = adi->priv;
/* Properly close all devices. */
- for (l = adi->instances; l; l = l->next) {
+ for (l = drvc->instances; l; l = l->next) {
if (!(sdi = l->data)) {
/* Log error, but continue cleaning up the rest. */
sr_err("sigma: %s: sdi was NULL, continuing", __func__);
continue;
}
if (sdi->priv) {
- ctx = sdi->priv;
- ftdi_free(&ctx->ftdic);
- g_free(ctx);
+ devc = sdi->priv;
+ ftdi_free(&devc->ftdic);
+ g_free(devc);
}
sr_dev_inst_free(sdi);
}
- g_slist_free(adi->instances);
- adi->instances = NULL;
+ g_slist_free(drvc->instances);
+ drvc->instances = NULL;
}
{
struct sr_dev_inst *sdi;
struct sr_probe *probe;
- struct context *ctx;
+ struct drv_context *drvc;
+ struct dev_context *devc;
GSList *devices;
struct ftdi_device_list *devlist;
char serial_txt[10];
int ret, i;
(void)options;
+ drvc = adi->priv;
devices = NULL;
clear_instances();
- if (!(ctx = g_try_malloc(sizeof(struct context)))) {
- sr_err("sigma: %s: ctx malloc failed", __func__);
+ if (!(devc = g_try_malloc(sizeof(struct dev_context)))) {
+ sr_err("sigma: %s: devc malloc failed", __func__);
return NULL;
}
- ftdi_init(&ctx->ftdic);
+ ftdi_init(&devc->ftdic);
/* Look for SIGMAs. */
- if ((ret = ftdi_usb_find_all(&ctx->ftdic, &devlist,
+ if ((ret = ftdi_usb_find_all(&devc->ftdic, &devlist,
USB_VENDOR, USB_PRODUCT)) <= 0) {
if (ret < 0)
sr_err("ftdi_usb_find_all(): %d", ret);
}
/* Make sure it's a version 1 or 2 SIGMA. */
- ftdi_usb_get_strings(&ctx->ftdic, devlist->dev, NULL, 0, NULL, 0,
+ ftdi_usb_get_strings(&devc->ftdic, devlist->dev, NULL, 0, NULL, 0,
serial_txt, sizeof(serial_txt));
sscanf(serial_txt, "%x", &serial);
sr_info("Found ASIX SIGMA - Serial: %s", serial_txt);
- ctx->cur_samplerate = 0;
- ctx->period_ps = 0;
- ctx->limit_msec = 0;
- ctx->cur_firmware = -1;
- ctx->num_probes = 0;
- ctx->samples_per_event = 0;
- ctx->capture_ratio = 50;
- ctx->use_triggers = 0;
+ devc->cur_samplerate = 0;
+ devc->period_ps = 0;
+ devc->limit_msec = 0;
+ devc->cur_firmware = -1;
+ devc->num_probes = 0;
+ devc->samples_per_event = 0;
+ devc->capture_ratio = 50;
+ devc->use_triggers = 0;
/* Register SIGMA device. */
if (!(sdi = sr_dev_inst_new(0, SR_ST_INITIALIZING, USB_VENDOR_NAME,
}
devices = g_slist_append(devices, sdi);
- adi->instances = g_slist_append(adi->instances, sdi);
- sdi->priv = ctx;
+ drvc->instances = g_slist_append(drvc->instances, sdi);
+ sdi->priv = devc;
/* We will open the device again when we need it. */
ftdi_list_free(&devlist);
return devices;
free:
- ftdi_deinit(&ctx->ftdic);
- g_free(ctx);
+ ftdi_deinit(&devc->ftdic);
+ g_free(devc);
return NULL;
}
-static int upload_firmware(int firmware_idx, struct context *ctx)
+static int upload_firmware(int firmware_idx, struct dev_context *devc)
{
int ret;
unsigned char *buf;
char firmware_path[128];
/* Make sure it's an ASIX SIGMA. */
- if ((ret = ftdi_usb_open_desc(&ctx->ftdic,
+ if ((ret = ftdi_usb_open_desc(&devc->ftdic,
USB_VENDOR, USB_PRODUCT, USB_DESCRIPTION, NULL)) < 0) {
sr_err("sigma: ftdi_usb_open failed: %s",
- ftdi_get_error_string(&ctx->ftdic));
+ ftdi_get_error_string(&devc->ftdic));
return 0;
}
- if ((ret = ftdi_set_bitmode(&ctx->ftdic, 0xdf, BITMODE_BITBANG)) < 0) {
+ if ((ret = ftdi_set_bitmode(&devc->ftdic, 0xdf, BITMODE_BITBANG)) < 0) {
sr_err("sigma: ftdi_set_bitmode failed: %s",
- ftdi_get_error_string(&ctx->ftdic));
+ ftdi_get_error_string(&devc->ftdic));
return 0;
}
/* Four times the speed of sigmalogan - Works well. */
- if ((ret = ftdi_set_baudrate(&ctx->ftdic, 750000)) < 0) {
+ if ((ret = ftdi_set_baudrate(&devc->ftdic, 750000)) < 0) {
sr_err("sigma: ftdi_set_baudrate failed: %s",
- ftdi_get_error_string(&ctx->ftdic));
+ ftdi_get_error_string(&devc->ftdic));
return 0;
}
/* Force the FPGA to reboot. */
- sigma_write(suicide, sizeof(suicide), ctx);
- sigma_write(suicide, sizeof(suicide), ctx);
- sigma_write(suicide, sizeof(suicide), ctx);
- sigma_write(suicide, sizeof(suicide), ctx);
+ sigma_write(suicide, sizeof(suicide), devc);
+ sigma_write(suicide, sizeof(suicide), devc);
+ sigma_write(suicide, sizeof(suicide), devc);
+ sigma_write(suicide, sizeof(suicide), devc);
/* Prepare to upload firmware (FPGA specific). */
- sigma_write(init, sizeof(init), ctx);
+ sigma_write(init, sizeof(init), devc);
- ftdi_usb_purge_buffers(&ctx->ftdic);
+ ftdi_usb_purge_buffers(&devc->ftdic);
/* Wait until the FPGA asserts INIT_B. */
while (1) {
- ret = sigma_read(result, 1, ctx);
+ ret = sigma_read(result, 1, devc);
if (result[0] & 0x20)
break;
}
/* Upload firmare. */
sr_info("sigma: Uploading firmware %s", firmware_files[firmware_idx]);
- sigma_write(buf, buf_size, ctx);
+ sigma_write(buf, buf_size, devc);
g_free(buf);
- if ((ret = ftdi_set_bitmode(&ctx->ftdic, 0x00, BITMODE_RESET)) < 0) {
+ if ((ret = ftdi_set_bitmode(&devc->ftdic, 0x00, BITMODE_RESET)) < 0) {
sr_err("sigma: ftdi_set_bitmode failed: %s",
- ftdi_get_error_string(&ctx->ftdic));
+ ftdi_get_error_string(&devc->ftdic));
return SR_ERR;
}
- ftdi_usb_purge_buffers(&ctx->ftdic);
+ ftdi_usb_purge_buffers(&devc->ftdic);
/* Discard garbage. */
- while (1 == sigma_read(&pins, 1, ctx))
+ while (1 == sigma_read(&pins, 1, devc))
;
/* Initialize the logic analyzer mode. */
- sigma_write(logic_mode_start, sizeof(logic_mode_start), ctx);
+ sigma_write(logic_mode_start, sizeof(logic_mode_start), devc);
/* Expect a 3 byte reply. */
- ret = sigma_read(result, 3, ctx);
+ ret = sigma_read(result, 3, devc);
if (ret != 3 ||
result[0] != 0xa6 || result[1] != 0x55 || result[2] != 0xaa) {
sr_err("sigma: Configuration failed. Invalid reply received.");
return SR_ERR;
}
- ctx->cur_firmware = firmware_idx;
+ devc->cur_firmware = firmware_idx;
sr_info("sigma: Firmware uploaded");
static int hw_dev_open(struct sr_dev_inst *sdi)
{
- struct context *ctx;
+ struct dev_context *devc;
int ret;
- ctx = sdi->priv;
+ devc = sdi->priv;
/* Make sure it's an ASIX SIGMA. */
- if ((ret = ftdi_usb_open_desc(&ctx->ftdic,
+ if ((ret = ftdi_usb_open_desc(&devc->ftdic,
USB_VENDOR, USB_PRODUCT, USB_DESCRIPTION, NULL)) < 0) {
sr_err("sigma: ftdi_usb_open failed: %s",
- ftdi_get_error_string(&ctx->ftdic));
+ ftdi_get_error_string(&devc->ftdic));
return 0;
}
static int set_samplerate(const struct sr_dev_inst *sdi, uint64_t samplerate)
{
int i, ret;
- struct context *ctx = sdi->priv;
+ struct dev_context *devc = sdi->priv;
for (i = 0; supported_samplerates[i]; i++) {
if (supported_samplerates[i] == samplerate)
return SR_ERR_SAMPLERATE;
if (samplerate <= SR_MHZ(50)) {
- ret = upload_firmware(0, ctx);
- ctx->num_probes = 16;
+ ret = upload_firmware(0, devc);
+ devc->num_probes = 16;
}
if (samplerate == SR_MHZ(100)) {
- ret = upload_firmware(1, ctx);
- ctx->num_probes = 8;
+ ret = upload_firmware(1, devc);
+ devc->num_probes = 8;
}
else if (samplerate == SR_MHZ(200)) {
- ret = upload_firmware(2, ctx);
- ctx->num_probes = 4;
+ ret = upload_firmware(2, devc);
+ devc->num_probes = 4;
}
- ctx->cur_samplerate = samplerate;
- ctx->period_ps = 1000000000000 / samplerate;
- ctx->samples_per_event = 16 / ctx->num_probes;
- ctx->state.state = SIGMA_IDLE;
+ devc->cur_samplerate = samplerate;
+ devc->period_ps = 1000000000000 / samplerate;
+ devc->samples_per_event = 16 / devc->num_probes;
+ devc->state.state = SIGMA_IDLE;
return ret;
}
*/
static int configure_probes(const struct sr_dev_inst *sdi, const GSList *probes)
{
- struct context *ctx = sdi->priv;
+ struct dev_context *devc = sdi->priv;
const struct sr_probe *probe;
const GSList *l;
int trigger_set = 0;
int probebit;
- memset(&ctx->trigger, 0, sizeof(struct sigma_trigger));
+ memset(&devc->trigger, 0, sizeof(struct sigma_trigger));
for (l = probes; l; l = l->next) {
probe = (struct sr_probe *)l->data;
if (!probe->enabled || !probe->trigger)
continue;
- if (ctx->cur_samplerate >= SR_MHZ(100)) {
+ if (devc->cur_samplerate >= SR_MHZ(100)) {
/* Fast trigger support. */
if (trigger_set) {
sr_err("sigma: ASIX SIGMA only supports a single "
return SR_ERR;
}
if (probe->trigger[0] == 'f')
- ctx->trigger.fallingmask |= probebit;
+ devc->trigger.fallingmask |= probebit;
else if (probe->trigger[0] == 'r')
- ctx->trigger.risingmask |= probebit;
+ devc->trigger.risingmask |= probebit;
else {
sr_err("sigma: ASIX SIGMA only supports "
"rising/falling trigger in 100 "
} else {
/* Simple trigger support (event). */
if (probe->trigger[0] == '1') {
- ctx->trigger.simplevalue |= probebit;
- ctx->trigger.simplemask |= probebit;
+ devc->trigger.simplevalue |= probebit;
+ devc->trigger.simplemask |= probebit;
}
else if (probe->trigger[0] == '0') {
- ctx->trigger.simplevalue &= ~probebit;
- ctx->trigger.simplemask |= probebit;
+ devc->trigger.simplevalue &= ~probebit;
+ devc->trigger.simplemask |= probebit;
}
else if (probe->trigger[0] == 'f') {
- ctx->trigger.fallingmask |= probebit;
+ devc->trigger.fallingmask |= probebit;
++trigger_set;
}
else if (probe->trigger[0] == 'r') {
- ctx->trigger.risingmask |= probebit;
+ devc->trigger.risingmask |= probebit;
++trigger_set;
}
}
if (trigger_set)
- ctx->use_triggers = 1;
+ devc->use_triggers = 1;
}
return SR_OK;
static int hw_dev_close(struct sr_dev_inst *sdi)
{
- struct context *ctx;
+ struct dev_context *devc;
- if (!(ctx = sdi->priv)) {
+ if (!(devc = sdi->priv)) {
sr_err("sigma: %s: sdi->priv was NULL", __func__);
return SR_ERR_BUG;
}
/* TODO */
if (sdi->status == SR_ST_ACTIVE)
- ftdi_usb_close(&ctx->ftdic);
+ ftdi_usb_close(&devc->ftdic);
sdi->status = SR_ST_INACTIVE;
static int hw_info_get(int info_id, const void **data,
const struct sr_dev_inst *sdi)
{
- struct context *ctx;
+ struct dev_context *devc;
switch (info_id) {
case SR_DI_HWCAPS:
break;
case SR_DI_CUR_SAMPLERATE:
if (sdi) {
- ctx = sdi->priv;
- *data = &ctx->cur_samplerate;
+ devc = sdi->priv;
+ *data = &devc->cur_samplerate;
} else
return SR_ERR;
break;
static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap,
const void *value)
{
- struct context *ctx;
+ struct dev_context *devc;
int ret;
- ctx = sdi->priv;
+ devc = sdi->priv;
if (hwcap == SR_HWCAP_SAMPLERATE) {
ret = set_samplerate(sdi, *(const uint64_t *)value);
} else if (hwcap == SR_HWCAP_PROBECONFIG) {
ret = configure_probes(sdi, value);
} else if (hwcap == SR_HWCAP_LIMIT_MSEC) {
- ctx->limit_msec = *(const uint64_t *)value;
- if (ctx->limit_msec > 0)
+ devc->limit_msec = *(const uint64_t *)value;
+ if (devc->limit_msec > 0)
ret = SR_OK;
else
ret = SR_ERR;
} else if (hwcap == SR_HWCAP_CAPTURE_RATIO) {
- ctx->capture_ratio = *(const uint64_t *)value;
- if (ctx->capture_ratio < 0 || ctx->capture_ratio > 100)
+ devc->capture_ratio = *(const uint64_t *)value;
+ if (devc->capture_ratio < 0 || devc->capture_ratio > 100)
ret = SR_ERR;
else
ret = SR_OK;
uint16_t limit_chunk, void *cb_data)
{
struct sr_dev_inst *sdi = cb_data;
- struct context *ctx = sdi->priv;
+ struct dev_context *devc = sdi->priv;
uint16_t tsdiff, ts;
- uint16_t samples[65536 * ctx->samples_per_event];
+ uint16_t samples[65536 * devc->samples_per_event];
struct sr_datafeed_packet packet;
struct sr_datafeed_logic logic;
int i, j, k, l, numpad, tosend;
size_t n = 0, sent = 0;
- int clustersize = EVENTS_PER_CLUSTER * ctx->samples_per_event;
+ int clustersize = EVENTS_PER_CLUSTER * devc->samples_per_event;
uint16_t *event;
uint16_t cur_sample;
int triggerts = -1;
/* Check if trigger is in this chunk. */
if (triggerpos != -1) {
- if (ctx->cur_samplerate <= SR_MHZ(50))
+ if (devc->cur_samplerate <= SR_MHZ(50))
triggerpos -= EVENTS_PER_CLUSTER - 1;
if (triggerpos < 0)
return SR_OK;
/* Pad last sample up to current point. */
- numpad = tsdiff * ctx->samples_per_event - clustersize;
+ numpad = tsdiff * devc->samples_per_event - clustersize;
if (numpad > 0) {
for (j = 0; j < numpad; ++j)
samples[j] = *lastsample;
logic.length = tosend * sizeof(uint16_t);
logic.unitsize = 2;
logic.data = samples + sent;
- sr_session_send(ctx->session_dev_id, &packet);
+ sr_session_send(devc->session_dev_id, &packet);
sent += tosend;
}
for (j = 0; j < 7; ++j) {
/* For each sample in event. */
- for (k = 0; k < ctx->samples_per_event; ++k) {
+ for (k = 0; k < devc->samples_per_event; ++k) {
cur_sample = 0;
/* For each probe. */
- for (l = 0; l < ctx->num_probes; ++l)
+ for (l = 0; l < devc->num_probes; ++l)
cur_sample |= (!!(event[j] & (1 << (l *
- ctx->samples_per_event + k)))) << l;
+ devc->samples_per_event + k)))) << l;
samples[n++] = cur_sample;
}
* samples to pinpoint the exact position of the trigger.
*/
tosend = get_trigger_offset(samples, *lastsample,
- &ctx->trigger);
+ &devc->trigger);
if (tosend > 0) {
packet.type = SR_DF_LOGIC;
logic.length = tosend * sizeof(uint16_t);
logic.unitsize = 2;
logic.data = samples;
- sr_session_send(ctx->session_dev_id, &packet);
+ sr_session_send(devc->session_dev_id, &packet);
sent += tosend;
}
/* Only send trigger if explicitly enabled. */
- if (ctx->use_triggers) {
+ if (devc->use_triggers) {
packet.type = SR_DF_TRIGGER;
- sr_session_send(ctx->session_dev_id, &packet);
+ sr_session_send(devc->session_dev_id, &packet);
}
}
logic.length = tosend * sizeof(uint16_t);
logic.unitsize = 2;
logic.data = samples + sent;
- sr_session_send(ctx->session_dev_id, &packet);
+ sr_session_send(devc->session_dev_id, &packet);
}
*lastsample = samples[n - 1];
static int receive_data(int fd, int revents, void *cb_data)
{
struct sr_dev_inst *sdi = cb_data;
- struct context *ctx = sdi->priv;
+ struct dev_context *devc = sdi->priv;
struct sr_datafeed_packet packet;
const int chunks_per_read = 32;
unsigned char buf[chunks_per_read * CHUNK_SIZE];
(void)revents;
/* Get the current position. */
- sigma_read_pos(&ctx->state.stoppos, &ctx->state.triggerpos, ctx);
+ sigma_read_pos(&devc->state.stoppos, &devc->state.triggerpos, devc);
- numchunks = (ctx->state.stoppos + 511) / 512;
+ numchunks = (devc->state.stoppos + 511) / 512;
- if (ctx->state.state == SIGMA_IDLE)
+ if (devc->state.state == SIGMA_IDLE)
return TRUE;
- if (ctx->state.state == SIGMA_CAPTURE) {
+ if (devc->state.state == SIGMA_CAPTURE) {
/* Check if the timer has expired, or memory is full. */
gettimeofday(&tv, 0);
- running_msec = (tv.tv_sec - ctx->start_tv.tv_sec) * 1000 +
- (tv.tv_usec - ctx->start_tv.tv_usec) / 1000;
+ running_msec = (tv.tv_sec - devc->start_tv.tv_sec) * 1000 +
+ (tv.tv_usec - devc->start_tv.tv_usec) / 1000;
- if (running_msec < ctx->limit_msec && numchunks < 32767)
+ if (running_msec < devc->limit_msec && numchunks < 32767)
return TRUE; /* While capturing... */
else
hw_dev_acquisition_stop(sdi, sdi);
- } else if (ctx->state.state == SIGMA_DOWNLOAD) {
- if (ctx->state.chunks_downloaded >= numchunks) {
+ } else if (devc->state.state == SIGMA_DOWNLOAD) {
+ if (devc->state.chunks_downloaded >= numchunks) {
/* End of samples. */
packet.type = SR_DF_END;
- sr_session_send(ctx->session_dev_id, &packet);
+ sr_session_send(devc->session_dev_id, &packet);
- ctx->state.state = SIGMA_IDLE;
+ devc->state.state = SIGMA_IDLE;
return TRUE;
}
newchunks = MIN(chunks_per_read,
- numchunks - ctx->state.chunks_downloaded);
+ numchunks - devc->state.chunks_downloaded);
sr_info("sigma: Downloading sample data: %.0f %%",
- 100.0 * ctx->state.chunks_downloaded / numchunks);
+ 100.0 * devc->state.chunks_downloaded / numchunks);
- bufsz = sigma_read_dram(ctx->state.chunks_downloaded,
- newchunks, buf, ctx);
+ bufsz = sigma_read_dram(devc->state.chunks_downloaded,
+ newchunks, buf, devc);
/* TODO: Check bufsz. For now, just avoid compiler warnings. */
(void)bufsz;
/* Find first ts. */
- if (ctx->state.chunks_downloaded == 0) {
- ctx->state.lastts = *(uint16_t *) buf - 1;
- ctx->state.lastsample = 0;
+ if (devc->state.chunks_downloaded == 0) {
+ devc->state.lastts = *(uint16_t *) buf - 1;
+ devc->state.lastsample = 0;
}
/* Decode chunks and send them to sigrok. */
int limit_chunk = 0;
/* The last chunk may potentially be only in part. */
- if (ctx->state.chunks_downloaded == numchunks - 1) {
+ if (devc->state.chunks_downloaded == numchunks - 1) {
/* Find the last valid timestamp */
- limit_chunk = ctx->state.stoppos % 512 + ctx->state.lastts;
+ limit_chunk = devc->state.stoppos % 512 + devc->state.lastts;
}
- if (ctx->state.chunks_downloaded + i == ctx->state.triggerchunk)
+ if (devc->state.chunks_downloaded + i == devc->state.triggerchunk)
decode_chunk_ts(buf + (i * CHUNK_SIZE),
- &ctx->state.lastts,
- &ctx->state.lastsample,
- ctx->state.triggerpos & 0x1ff,
+ &devc->state.lastts,
+ &devc->state.lastsample,
+ devc->state.triggerpos & 0x1ff,
limit_chunk, sdi);
else
decode_chunk_ts(buf + (i * CHUNK_SIZE),
- &ctx->state.lastts,
- &ctx->state.lastsample,
+ &devc->state.lastts,
+ &devc->state.lastsample,
-1, limit_chunk, sdi);
- ++ctx->state.chunks_downloaded;
+ ++devc->state.chunks_downloaded;
}
}
* simple pin change and state triggers. Only two transitions (rise/fall) can be
* set at any time, but a full mask and value can be set (0/1).
*/
-static int build_basic_trigger(struct triggerlut *lut, struct context *ctx)
+static int build_basic_trigger(struct triggerlut *lut, struct dev_context *devc)
{
int i,j;
uint16_t masks[2] = { 0, 0 };
lut->m4 = 0xa000;
/* Value/mask trigger support. */
- build_lut_entry(ctx->trigger.simplevalue, ctx->trigger.simplemask,
+ build_lut_entry(devc->trigger.simplevalue, devc->trigger.simplemask,
lut->m2d);
/* Rise/fall trigger support. */
for (i = 0, j = 0; i < 16; ++i) {
- if (ctx->trigger.risingmask & (1 << i) ||
- ctx->trigger.fallingmask & (1 << i))
+ if (devc->trigger.risingmask & (1 << i) ||
+ devc->trigger.fallingmask & (1 << i))
masks[j++] = 1 << i;
}
/* Add glue logic */
if (masks[0] || masks[1]) {
/* Transition trigger. */
- if (masks[0] & ctx->trigger.risingmask)
+ if (masks[0] & devc->trigger.risingmask)
add_trigger_function(OP_RISE, FUNC_OR, 0, 0, &lut->m3);
- if (masks[0] & ctx->trigger.fallingmask)
+ if (masks[0] & devc->trigger.fallingmask)
add_trigger_function(OP_FALL, FUNC_OR, 0, 0, &lut->m3);
- if (masks[1] & ctx->trigger.risingmask)
+ if (masks[1] & devc->trigger.risingmask)
add_trigger_function(OP_RISE, FUNC_OR, 1, 0, &lut->m3);
- if (masks[1] & ctx->trigger.fallingmask)
+ if (masks[1] & devc->trigger.fallingmask)
add_trigger_function(OP_FALL, FUNC_OR, 1, 0, &lut->m3);
} else {
/* Only value/mask trigger. */
static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
void *cb_data)
{
- struct context *ctx;
+ struct dev_context *devc;
struct sr_datafeed_packet *packet;
struct sr_datafeed_header *header;
struct sr_datafeed_meta_logic meta;
struct triggerinout triggerinout_conf;
struct triggerlut lut;
- ctx = sdi->priv;
+ devc = sdi->priv;
/* If the samplerate has not been set, default to 200 kHz. */
- if (ctx->cur_firmware == -1) {
+ if (devc->cur_firmware == -1) {
if ((ret = set_samplerate(sdi, SR_KHZ(200))) != SR_OK)
return ret;
}
/* Enter trigger programming mode. */
- sigma_set_register(WRITE_TRIGGER_SELECT1, 0x20, ctx);
+ sigma_set_register(WRITE_TRIGGER_SELECT1, 0x20, devc);
/* 100 and 200 MHz mode. */
- if (ctx->cur_samplerate >= SR_MHZ(100)) {
- sigma_set_register(WRITE_TRIGGER_SELECT1, 0x81, ctx);
+ if (devc->cur_samplerate >= SR_MHZ(100)) {
+ sigma_set_register(WRITE_TRIGGER_SELECT1, 0x81, devc);
/* Find which pin to trigger on from mask. */
for (triggerpin = 0; triggerpin < 8; ++triggerpin)
- if ((ctx->trigger.risingmask | ctx->trigger.fallingmask) &
+ if ((devc->trigger.risingmask | devc->trigger.fallingmask) &
(1 << triggerpin))
break;
triggerselect = (1 << LEDSEL1) | (triggerpin & 0x7);
/* Default rising edge. */
- if (ctx->trigger.fallingmask)
+ if (devc->trigger.fallingmask)
triggerselect |= 1 << 3;
/* All other modes. */
- } else if (ctx->cur_samplerate <= SR_MHZ(50)) {
- build_basic_trigger(&lut, ctx);
+ } else if (devc->cur_samplerate <= SR_MHZ(50)) {
+ build_basic_trigger(&lut, devc);
- sigma_write_trigger_lut(&lut, ctx);
+ sigma_write_trigger_lut(&lut, devc);
triggerselect = (1 << LEDSEL1) | (1 << LEDSEL0);
}
sigma_write_register(WRITE_TRIGGER_OPTION,
(uint8_t *) &triggerinout_conf,
- sizeof(struct triggerinout), ctx);
+ sizeof(struct triggerinout), devc);
/* Go back to normal mode. */
- sigma_set_register(WRITE_TRIGGER_SELECT1, triggerselect, ctx);
+ sigma_set_register(WRITE_TRIGGER_SELECT1, triggerselect, devc);
/* Set clock select register. */
- if (ctx->cur_samplerate == SR_MHZ(200))
+ if (devc->cur_samplerate == SR_MHZ(200))
/* Enable 4 probes. */
- sigma_set_register(WRITE_CLOCK_SELECT, 0xf0, ctx);
- else if (ctx->cur_samplerate == SR_MHZ(100))
+ sigma_set_register(WRITE_CLOCK_SELECT, 0xf0, devc);
+ else if (devc->cur_samplerate == SR_MHZ(100))
/* Enable 8 probes. */
- sigma_set_register(WRITE_CLOCK_SELECT, 0x00, ctx);
+ sigma_set_register(WRITE_CLOCK_SELECT, 0x00, devc);
else {
/*
* 50 MHz mode (or fraction thereof). Any fraction down to
* 50 MHz / 256 can be used, but is not supported by sigrok API.
*/
- frac = SR_MHZ(50) / ctx->cur_samplerate - 1;
+ frac = SR_MHZ(50) / devc->cur_samplerate - 1;
clockselect.async = 0;
clockselect.fraction = frac;
sigma_write_register(WRITE_CLOCK_SELECT,
(uint8_t *) &clockselect,
- sizeof(clockselect), ctx);
+ sizeof(clockselect), devc);
}
/* Setup maximum post trigger time. */
sigma_set_register(WRITE_POST_TRIGGER,
- (ctx->capture_ratio * 255) / 100, ctx);
+ (devc->capture_ratio * 255) / 100, devc);
/* Start acqusition. */
- gettimeofday(&ctx->start_tv, 0);
- sigma_set_register(WRITE_MODE, 0x0d, ctx);
+ gettimeofday(&devc->start_tv, 0);
+ sigma_set_register(WRITE_MODE, 0x0d, devc);
- ctx->session_dev_id = cb_data;
+ devc->session_dev_id = cb_data;
if (!(packet = g_try_malloc(sizeof(struct sr_datafeed_packet)))) {
sr_err("sigma: %s: packet malloc failed.", __func__);
packet->payload = header;
header->feed_version = 1;
gettimeofday(&header->starttime, NULL);
- sr_session_send(ctx->session_dev_id, packet);
+ sr_session_send(devc->session_dev_id, packet);
/* Send metadata about the SR_DF_LOGIC packets to come. */
packet->type = SR_DF_META_LOGIC;
packet->payload = &meta;
- meta.samplerate = ctx->cur_samplerate;
- meta.num_probes = ctx->num_probes;
- sr_session_send(ctx->session_dev_id, packet);
+ meta.samplerate = devc->cur_samplerate;
+ meta.num_probes = devc->num_probes;
+ sr_session_send(devc->session_dev_id, packet);
/* Add capture source. */
sr_source_add(0, G_IO_IN, 10, receive_data, (void *)sdi);
g_free(header);
g_free(packet);
- ctx->state.state = SIGMA_CAPTURE;
+ devc->state.state = SIGMA_CAPTURE;
return SR_OK;
}
static int hw_dev_acquisition_stop(const struct sr_dev_inst *sdi,
void *cb_data)
{
- struct context *ctx;
+ struct dev_context *devc;
uint8_t modestatus;
/* Avoid compiler warnings. */
(void)cb_data;
- if (!(ctx = sdi->priv)) {
+ if (!(devc = sdi->priv)) {
sr_err("sigma: %s: sdi->priv was NULL", __func__);
return SR_ERR_BUG;
}
/* Stop acquisition. */
- sigma_set_register(WRITE_MODE, 0x11, ctx);
+ sigma_set_register(WRITE_MODE, 0x11, devc);
/* Set SDRAM Read Enable. */
- sigma_set_register(WRITE_MODE, 0x02, ctx);
+ sigma_set_register(WRITE_MODE, 0x02, devc);
/* Get the current position. */
- sigma_read_pos(&ctx->state.stoppos, &ctx->state.triggerpos, ctx);
+ sigma_read_pos(&devc->state.stoppos, &devc->state.triggerpos, devc);
/* Check if trigger has fired. */
- modestatus = sigma_get_register(READ_MODE, ctx);
+ modestatus = sigma_get_register(READ_MODE, devc);
if (modestatus & 0x20)
- ctx->state.triggerchunk = ctx->state.triggerpos / 512;
+ devc->state.triggerchunk = devc->state.triggerpos / 512;
else
- ctx->state.triggerchunk = -1;
+ devc->state.triggerchunk = -1;
- ctx->state.chunks_downloaded = 0;
+ devc->state.chunks_downloaded = 0;
- ctx->state.state = SIGMA_DOWNLOAD;
+ devc->state.state = SIGMA_DOWNLOAD;
return SR_OK;
}
.dev_config_set = hw_dev_config_set,
.dev_acquisition_start = hw_dev_acquisition_start,
.dev_acquisition_stop = hw_dev_acquisition_stop,
- .instances = NULL,
+ .priv = NULL,
};
projects / libsigrok.git / commitdiff