X-Git-Url: https://sigrok.org/gitweb/?p=libsigrok.git;a=blobdiff_plain;f=src%2Fhardware%2Fopenbench-logic-sniffer%2Fprotocol.c;h=9a36c8c89513231fc33cb2bb69e993c0b011f86e;hp=b732da59c19e5a271b553a9be7288186e6cb6530;hb=dcdc2848b790310d9b197c5339298ad511f54be0;hpb=c368e6f3d248a73d69cd0c2c4a7c88a92def55e3
diff --git a/src/hardware/openbench-logic-sniffer/protocol.c b/src/hardware/openbench-logic-sniffer/protocol.c
index b732da59..9a36c8c8 100644
--- a/src/hardware/openbench-logic-sniffer/protocol.c
+++ b/src/hardware/openbench-logic-sniffer/protocol.c
@@ -17,11 +17,8 @@
* along with this program. If not, see .
*/
+#include
#include "protocol.h"
-#include
-
-extern SR_PRIV struct sr_dev_driver ols_driver_info;
-static struct sr_dev_driver *di = &ols_driver_info;
SR_PRIV int send_shortcommand(struct sr_serial_dev_inst *serial,
uint8_t command)
@@ -33,7 +30,7 @@ SR_PRIV int send_shortcommand(struct sr_serial_dev_inst *serial,
if (serial_write_blocking(serial, buf, 1, serial_timeout(serial, 1)) != 1)
return SR_ERR;
- if (serial_drain(serial) != 0)
+ if (serial_drain(serial) != SR_OK)
return SR_ERR;
return SR_OK;
@@ -54,12 +51,24 @@ SR_PRIV int send_longcommand(struct sr_serial_dev_inst *serial,
if (serial_write_blocking(serial, buf, 5, serial_timeout(serial, 1)) != 5)
return SR_ERR;
- if (serial_drain(serial) != 0)
+ if (serial_drain(serial) != SR_OK)
return SR_ERR;
return SR_OK;
}
+SR_PRIV int ols_send_reset(struct sr_serial_dev_inst *serial)
+{
+ unsigned int i;
+
+ for (i = 0; i < 5; i++) {
+ if (send_shortcommand(serial, CMD_RESET) != SR_OK)
+ return SR_ERR;
+ }
+
+ return SR_OK;
+}
+
/* Configures the channel mask based on which channels are enabled. */
SR_PRIV void ols_channel_mask(const struct sr_dev_inst *sdi)
{
@@ -125,25 +134,50 @@ SR_PRIV struct dev_context *ols_dev_new(void)
struct dev_context *devc;
devc = g_malloc0(sizeof(struct dev_context));
+ devc->trigger_at_smpl = OLS_NO_TRIGGER;
- /* Device-specific settings */
- devc->max_samples = devc->max_samplerate = devc->protocol_version = 0;
+ return devc;
+}
- /* Acquisition settings */
- devc->limit_samples = devc->capture_ratio = 0;
- devc->trigger_at = -1;
- devc->channel_mask = 0xffffffff;
- devc->flag_reg = 0;
+static void ols_channel_new(struct sr_dev_inst *sdi, int num_chan)
+{
+ struct dev_context *devc = sdi->priv;
+ int i;
- return devc;
+ for (i = 0; i < num_chan; i++)
+ sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE,
+ ols_channel_names[i]);
+
+ devc->max_channels = num_chan;
+}
+
+static void metadata_quirks(struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc;
+ gboolean is_shrimp;
+
+ if (!sdi)
+ return;
+ devc = sdi->priv;
+ if (!devc)
+ return;
+
+ is_shrimp = sdi->model && strcmp(sdi->model, "Shrimp1.0") == 0;
+ if (is_shrimp) {
+ if (!devc->max_channels)
+ ols_channel_new(sdi, 4);
+ if (!devc->max_samples)
+ devc->max_samples = 256 * 1024;
+ if (!devc->max_samplerate)
+ devc->max_samplerate = SR_MHZ(20);
+ }
}
SR_PRIV struct sr_dev_inst *get_metadata(struct sr_serial_dev_inst *serial)
{
struct sr_dev_inst *sdi;
struct dev_context *devc;
- struct sr_channel *ch;
- uint32_t tmp_int, ui;
+ uint32_t tmp_int;
uint8_t key, type, token;
int delay_ms;
GString *tmp_str, *devname, *version;
@@ -151,7 +185,6 @@ SR_PRIV struct sr_dev_inst *get_metadata(struct sr_serial_dev_inst *serial)
sdi = g_malloc0(sizeof(struct sr_dev_inst));
sdi->status = SR_ST_INACTIVE;
- sdi->driver = di;
devc = ols_dev_new();
sdi->priv = devc;
@@ -215,11 +248,7 @@ SR_PRIV struct sr_dev_inst *get_metadata(struct sr_serial_dev_inst *serial)
switch (token) {
case 0x00:
/* Number of usable channels */
- for (ui = 0; ui < tmp_int; ui++) {
- ch = sr_channel_new(ui, SR_CHANNEL_LOGIC, TRUE,
- ols_channel_names[ui]);
- sdi->channels = g_slist_append(sdi->channels, ch);
- }
+ ols_channel_new(sdi, tmp_int);
break;
case 0x01:
/* Amount of sample memory available (bytes) */
@@ -230,7 +259,7 @@ SR_PRIV struct sr_dev_inst *get_metadata(struct sr_serial_dev_inst *serial)
/* what is this for? */
break;
case 0x03:
- /* Maximum sample rate (hz) */
+ /* Maximum sample rate (Hz) */
devc->max_samplerate = tmp_int;
break;
case 0x04:
@@ -253,11 +282,7 @@ SR_PRIV struct sr_dev_inst *get_metadata(struct sr_serial_dev_inst *serial)
switch (token) {
case 0x00:
/* Number of usable channels */
- for (ui = 0; ui < tmp_c; ui++) {
- ch = sr_channel_new(ui, SR_CHANNEL_LOGIC, TRUE,
- ols_channel_names[ui]);
- sdi->channels = g_slist_append(sdi->channels, ch);
- }
+ ols_channel_new(sdi, tmp_c);
break;
case 0x01:
/* protocol version */
@@ -280,6 +305,9 @@ SR_PRIV struct sr_dev_inst *get_metadata(struct sr_serial_dev_inst *serial)
g_string_free(devname, FALSE);
g_string_free(version, FALSE);
+ /* Optionally amend received metadata, model specific quirks. */
+ metadata_quirks(sdi);
+
return sdi;
}
@@ -294,15 +322,13 @@ SR_PRIV int ols_set_samplerate(const struct sr_dev_inst *sdi,
if (samplerate > CLOCK_RATE) {
sr_info("Enabling demux mode.");
- devc->flag_reg |= FLAG_DEMUX;
- devc->flag_reg &= ~FLAG_FILTER;
- devc->max_channels = NUM_CHANNELS / 2;
+ devc->capture_flags |= CAPTURE_FLAG_DEMUX;
+ devc->capture_flags &= ~CAPTURE_FLAG_NOISE_FILTER;
devc->cur_samplerate_divider = (CLOCK_RATE * 2 / samplerate) - 1;
} else {
sr_info("Disabling demux mode.");
- devc->flag_reg &= ~FLAG_DEMUX;
- devc->flag_reg |= FLAG_FILTER;
- devc->max_channels = NUM_CHANNELS;
+ devc->capture_flags &= ~CAPTURE_FLAG_DEMUX;
+ devc->capture_flags |= CAPTURE_FLAG_NOISE_FILTER;
devc->cur_samplerate_divider = (CLOCK_RATE / samplerate) - 1;
}
@@ -310,7 +336,7 @@ SR_PRIV int ols_set_samplerate(const struct sr_dev_inst *sdi,
* from the requested.
*/
devc->cur_samplerate = CLOCK_RATE / (devc->cur_samplerate_divider + 1);
- if (devc->flag_reg & FLAG_DEMUX)
+ if (devc->capture_flags & CAPTURE_FLAG_DEMUX)
devc->cur_samplerate *= 2;
if (devc->cur_samplerate != samplerate)
sr_info("Can't match samplerate %" PRIu64 ", using %"
@@ -321,15 +347,12 @@ SR_PRIV int ols_set_samplerate(const struct sr_dev_inst *sdi,
SR_PRIV void abort_acquisition(const struct sr_dev_inst *sdi)
{
- struct sr_datafeed_packet packet;
struct sr_serial_dev_inst *serial;
serial = sdi->conn;
serial_source_remove(sdi->session, serial);
- /* Terminate session */
- packet.type = SR_DF_END;
- sr_session_send(sdi, &packet);
+ std_session_send_df_end(sdi);
}
SR_PRIV int ols_receive_data(int fd, int revents, void *cb_data)
@@ -350,16 +373,12 @@ SR_PRIV int ols_receive_data(int fd, int revents, void *cb_data)
serial = sdi->conn;
devc = sdi->priv;
+ if (devc->num_transfers == 0 && revents == 0) {
+ /* Ignore timeouts as long as we haven't received anything */
+ return TRUE;
+ }
+
if (devc->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...
- */
- serial_source_remove(sdi->session, serial);
- serial_source_add(sdi->session, serial, G_IO_IN, 30,
- ols_receive_data, cb_data);
devc->raw_sample_buf = g_try_malloc(devc->limit_samples * 4);
if (!devc->raw_sample_buf) {
sr_err("Sample buffer malloc failed.");
@@ -370,8 +389,8 @@ SR_PRIV int ols_receive_data(int fd, int revents, void *cb_data)
}
num_ols_changrp = 0;
- for (i = NUM_CHANNELS; i > 0x02; i /= 2) {
- if ((devc->flag_reg & i) == 0) {
+ for (i = 0x20; i > 0x02; i >>= 1) {
+ if ((devc->capture_flags & i) == 0) {
num_ols_changrp++;
}
}
@@ -397,7 +416,7 @@ SR_PRIV int ols_receive_data(int fd, int revents, void *cb_data)
sample = devc->sample[0] | (devc->sample[1] << 8) \
| (devc->sample[2] << 16) | (devc->sample[3] << 24);
sr_dbg("Received sample 0x%.*x.", devc->num_bytes * 2, sample);
- if (devc->flag_reg & FLAG_RLE) {
+ if (devc->capture_flags & CAPTURE_FLAG_RLE) {
/*
* In RLE mode the high bit of the sample is the
* "count" flag, meaning this sample is the number
@@ -433,14 +452,14 @@ SR_PRIV int ols_receive_data(int fd, int revents, void *cb_data)
j = 0;
memset(devc->tmp_sample, 0, 4);
for (i = 0; i < 4; i++) {
- if (((devc->flag_reg >> 2) & (1 << i)) == 0) {
+ if (((devc->capture_flags >> 2) & (1 << i)) == 0) {
/*
* This channel group was
* enabled, copy from received
* sample.
*/
devc->tmp_sample[i] = devc->sample[j++];
- } else if (devc->flag_reg & FLAG_DEMUX && (i > 2)) {
+ } else if (devc->capture_flags & CAPTURE_FLAG_DEMUX && (i > 2)) {
/* group 2 & 3 get added to 0 & 1 */
devc->tmp_sample[i - 2] = devc->sample[j++];
}
@@ -472,34 +491,33 @@ SR_PRIV int ols_receive_data(int fd, int revents, void *cb_data)
sr_dbg("Received %d bytes, %d samples, %d decompressed samples.",
devc->cnt_bytes, devc->cnt_samples,
devc->cnt_samples_rle);
- if (devc->trigger_at != -1) {
+ if (devc->trigger_at_smpl != OLS_NO_TRIGGER) {
/*
* A trigger was set up, so we need to tell the frontend
* about it.
*/
- if (devc->trigger_at > 0) {
+ if (devc->trigger_at_smpl > 0) {
/* There are pre-trigger samples, send those first. */
packet.type = SR_DF_LOGIC;
packet.payload = &logic;
- logic.length = devc->trigger_at * 4;
+ logic.length = devc->trigger_at_smpl * 4;
logic.unitsize = 4;
logic.data = devc->raw_sample_buf +
(devc->limit_samples - devc->num_samples) * 4;
- sr_session_send(cb_data, &packet);
+ sr_session_send(sdi, &packet);
}
/* Send the trigger. */
- packet.type = SR_DF_TRIGGER;
- sr_session_send(cb_data, &packet);
+ std_session_send_df_trigger(sdi);
/* Send post-trigger samples. */
packet.type = SR_DF_LOGIC;
packet.payload = &logic;
- logic.length = (devc->num_samples * 4) - (devc->trigger_at * 4);
+ logic.length = (devc->num_samples * 4) - (devc->trigger_at_smpl * 4);
logic.unitsize = 4;
- logic.data = devc->raw_sample_buf + devc->trigger_at * 4 +
+ logic.data = devc->raw_sample_buf + devc->trigger_at_smpl * 4 +
(devc->limit_samples - devc->num_samples) * 4;
- sr_session_send(cb_data, &packet);
+ sr_session_send(sdi, &packet);
} else {
/* no trigger was used */
packet.type = SR_DF_LOGIC;
@@ -508,7 +526,7 @@ SR_PRIV int ols_receive_data(int fd, int revents, void *cb_data)
logic.unitsize = 4;
logic.data = devc->raw_sample_buf +
(devc->limit_samples - devc->num_samples) * 4;
- sr_session_send(cb_data, &packet);
+ sr_session_send(sdi, &packet);
}
g_free(devc->raw_sample_buf);