*/
#include <libusb.h>
+#include "libsigrok.h"
+#include "libsigrok-internal.h"
+#include "fx2lafw.h"
#include "command.h"
-#include "sigrok.h"
-#include "sigrok-internal.h"
SR_PRIV int command_get_fw_version(libusb_device_handle *devhdl,
struct version_info *vi)
{
- const int ret = libusb_control_transfer (devhdl,
- LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_ENDPOINT_IN,
- CMD_GET_FW_VERSION, 0x0000, 0x0000,
- (unsigned char*)vi, sizeof(struct version_info),
- 100);
-
- if(ret < 0) {
- sr_err("fx2lafw: Unable to get version info: %d.", ret);
+ int ret;
+
+ ret = libusb_control_transfer(devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
+ LIBUSB_ENDPOINT_IN, CMD_GET_FW_VERSION, 0x0000, 0x0000,
+ (unsigned char *)vi, sizeof(struct version_info), 100);
+
+ if (ret < 0) {
+ sr_err("Unable to get version info: %s.",
+ libusb_error_name(ret));
+ return SR_ERR;
+ }
+
+ return SR_OK;
+}
+
+SR_PRIV int command_get_revid_version(libusb_device_handle *devhdl,
+ uint8_t *revid)
+{
+ int ret;
+
+ ret = libusb_control_transfer(devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
+ LIBUSB_ENDPOINT_IN, CMD_GET_REVID_VERSION, 0x0000, 0x0000,
+ revid, 1, 100);
+
+ if (ret < 0) {
+ sr_err("Unable to get REVID: %s.", libusb_error_name(ret));
return SR_ERR;
}
}
SR_PRIV int command_start_acquisition(libusb_device_handle *devhdl,
- uint64_t samplerate)
+ uint64_t samplerate, gboolean samplewide)
{
struct cmd_start_acquisition cmd;
int delay = 0, ret;
/* Compute the sample rate. */
- if((SR_MHZ(48) % samplerate) == 0) {
+ if (samplewide && samplerate > MAX_16BIT_SAMPLE_RATE) {
+ sr_err("Unable to sample at %" PRIu64 "Hz "
+ "when collecting 16-bit samples.", samplerate);
+ return SR_ERR;
+ }
+
+ if ((SR_MHZ(48) % samplerate) == 0) {
cmd.flags = CMD_START_FLAGS_CLK_48MHZ;
delay = SR_MHZ(48) / samplerate - 1;
- } else if((SR_MHZ(30) % samplerate) == 0) {
+ if (delay > MAX_SAMPLE_DELAY)
+ delay = 0;
+ }
+
+ if (delay == 0 && (SR_MHZ(30) % samplerate) == 0) {
cmd.flags = CMD_START_FLAGS_CLK_30MHZ;
delay = SR_MHZ(30) / samplerate - 1;
}
- /* Note: sample_delay=0 is treated as sample_delay=256. */
- if (delay <= 0 || delay > 256) {
- sr_err("fx2lafw: Unable to sample at %" PRIu64 "Hz.",
- samplerate);
+ sr_info("GPIF delay = %d, clocksource = %sMHz.", delay,
+ (cmd.flags & CMD_START_FLAGS_CLK_48MHZ) ? "48" : "30");
+
+ if (delay <= 0 || delay > MAX_SAMPLE_DELAY) {
+ sr_err("Unable to sample at %" PRIu64 "Hz.", samplerate);
return SR_ERR;
}
- cmd.sample_delay = delay;
+ cmd.sample_delay_h = (delay >> 8) & 0xff;
+ cmd.sample_delay_l = delay & 0xff;
+
+ /* Select the sampling width. */
+ cmd.flags |= samplewide ? CMD_START_FLAGS_SAMPLE_16BIT :
+ CMD_START_FLAGS_SAMPLE_8BIT;
/* Send the control message. */
ret = libusb_control_transfer(devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
LIBUSB_ENDPOINT_OUT, CMD_START, 0x0000, 0x0000,
(unsigned char *)&cmd, sizeof(cmd), 100);
if (ret < 0) {
- sr_err("fx2lafw: Unable to send start command: %d.", ret);
+ sr_err("Unable to send start command: %s.",
+ libusb_error_name(ret));
return SR_ERR;
}