X-Git-Url: https://sigrok.org/gitweb/?p=libsigrok.git;a=blobdiff_plain;f=src%2Fhardware%2Fopenbench-logic-sniffer%2Fprotocol.c;h=3bfb890fddf6623f8af8af9495d667b25d71b028;hp=0a816d01625ad238d7fb548007bd67903da09c76;hb=6745488b1a33acda728440e69f83e8bb0a0663f1;hpb=bce75f947dfc35eb67caa90f3c8dc9f20bdc36cb
diff --git a/src/hardware/openbench-logic-sniffer/protocol.c b/src/hardware/openbench-logic-sniffer/protocol.c
index 0a816d01..3bfb890f 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)
@@ -60,6 +57,18 @@ SR_PRIV int send_longcommand(struct sr_serial_dev_inst *serial,
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)
{
@@ -124,10 +133,7 @@ SR_PRIV struct dev_context *ols_dev_new(void)
{
struct dev_context *devc;
- if (!(devc = g_try_malloc(sizeof(struct dev_context)))) {
- sr_err("Device context malloc failed.");
- return NULL;
- }
+ devc = g_malloc0(sizeof(struct dev_context));
/* Device-specific settings */
devc->max_samples = devc->max_samplerate = devc->protocol_version = 0;
@@ -135,7 +141,6 @@ SR_PRIV struct dev_context *ols_dev_new(void)
/* Acquisition settings */
devc->limit_samples = devc->capture_ratio = 0;
devc->trigger_at = -1;
- devc->channel_mask = 0xffffffff;
devc->flag_reg = 0;
return devc;
@@ -145,15 +150,14 @@ 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;
uint8_t key, type, token;
int delay_ms;
GString *tmp_str, *devname, *version;
guchar tmp_c;
- sdi = sr_dev_inst_new(SR_ST_INACTIVE, NULL, NULL, NULL);
- sdi->driver = di;
+ sdi = g_malloc0(sizeof(struct sr_dev_inst));
+ sdi->status = SR_ST_INACTIVE;
devc = ols_dev_new();
sdi->priv = devc;
@@ -217,12 +221,9 @@ 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++) {
- if (!(ch = sr_channel_new(ui, SR_CHANNEL_LOGIC, TRUE,
- ols_channel_names[ui])))
- return 0;
- sdi->channels = g_slist_append(sdi->channels, ch);
- }
+ for (ui = 0; ui < tmp_int; ui++)
+ sr_channel_new(sdi, ui, SR_CHANNEL_LOGIC, TRUE,
+ ols_channel_names[ui]);
break;
case 0x01:
/* Amount of sample memory available (bytes) */
@@ -233,7 +234,7 @@ 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:
@@ -256,12 +257,9 @@ 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++) {
- if (!(ch = sr_channel_new(ui, SR_CHANNEL_LOGIC, TRUE,
- ols_channel_names[ui])))
- return 0;
- sdi->channels = g_slist_append(sdi->channels, ch);
- }
+ for (ui = 0; ui < tmp_c; ui++)
+ sr_channel_new(sdi, ui, SR_CHANNEL_LOGIC, TRUE,
+ ols_channel_names[ui]);
break;
case 0x01:
/* protocol version */
@@ -325,15 +323,12 @@ 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)
@@ -354,16 +349,12 @@ 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.");
@@ -489,12 +480,12 @@ 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);
}
/* Send the trigger. */
packet.type = SR_DF_TRIGGER;
- sr_session_send(cb_data, &packet);
+ sr_session_send(sdi, &packet);
/* Send post-trigger samples. */
packet.type = SR_DF_LOGIC;
@@ -503,7 +494,7 @@ SR_PRIV int ols_receive_data(int fd, int revents, void *cb_data)
logic.unitsize = 4;
logic.data = devc->raw_sample_buf + devc->trigger_at * 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;
@@ -512,7 +503,7 @@ 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);