/*
* This file is part of the sigrok project.
*
- * Copyright (C) 2010 Håvard Espeland <gus@ping.uio.no>,
+ * Copyright (C) 2010-2012 Håvard Espeland <gus@ping.uio.no>,
* Copyright (C) 2010 Martin Stensgård <mastensg@ping.uio.no>
* Copyright (C) 2010 Carl Henrik Lunde <chlunde@ping.uio.no>
*
*/
/*
- * ASIX SIGMA Logic Analyzer Driver
+ * ASIX SIGMA/SIGMA2 logic analyzer driver
*/
#include <glib.h>
#include <glib/gstdio.h>
#include <ftdi.h>
#include <string.h>
-#include <zlib.h>
-#include "sigrok.h"
-#include "sigrok-internal.h"
+#include "libsigrok.h"
+#include "libsigrok-internal.h"
#include "asix-sigma.h"
#define USB_VENDOR 0xa600
static GSList *dev_insts = NULL;
-static uint64_t supported_samplerates[] = {
+static const uint64_t supported_samplerates[] = {
SR_KHZ(200),
SR_KHZ(250),
SR_KHZ(500),
NULL,
};
-static struct sr_samplerates samplerates = {
+static const struct sr_samplerates samplerates = {
0,
0,
0,
supported_samplerates,
};
-static int hwcaps[] = {
+static const int hwcaps[] = {
SR_HWCAP_LOGIC_ANALYZER,
SR_HWCAP_SAMPLERATE,
SR_HWCAP_CAPTURE_RATIO,
unsigned char **buf, size_t *buf_size)
{
FILE *f;
- long file_size;
+ unsigned long file_size;
unsigned long offset = 0;
unsigned char *p;
- uint8_t *compressed_buf, *firmware;
- uLongf csize, fwsize;
+ uint8_t *firmware;
+ unsigned long fwsize = 0;
const int buffer_size = 65536;
size_t i;
- int c, ret, bit, v;
+ int c, bit, v;
uint32_t imm = 0x3f6df2ab;
f = g_fopen(filename, "rb");
fseek(f, 0, SEEK_SET);
- if (!(compressed_buf = g_try_malloc(file_size))) {
- sr_err("sigma: %s: compressed_buf malloc failed", __func__);
- fclose(f);
- return SR_ERR_MALLOC;
- }
-
if (!(firmware = g_try_malloc(buffer_size))) {
sr_err("sigma: %s: firmware malloc failed", __func__);
fclose(f);
- g_free(compressed_buf);
return SR_ERR_MALLOC;
}
- csize = 0;
while ((c = getc(f)) != EOF) {
imm = (imm + 0xa853753) % 177 + (imm * 0x8034052);
- compressed_buf[csize++] = c ^ imm;
+ firmware[fwsize++] = c ^ imm;
}
fclose(f);
- fwsize = buffer_size;
- ret = uncompress(firmware, &fwsize, compressed_buf, csize);
- if (ret < 0) {
- g_free(compressed_buf);
- g_free(firmware);
- sr_err("sigma: Could not unpack Sigma firmware. "
- "(Error %d).", ret);
- return SR_ERR;
+ if(fwsize != file_size) {
+ sr_err("sigma: %s: Error reading firmware", filename);
+ fclose(f);
+ g_free(firmware);
+ return SR_ERR;
}
- g_free(compressed_buf);
-
*buf_size = fwsize * 2 * 8;
*buf = p = (unsigned char *)g_try_malloc(*buf_size);
if (!p) {
sr_err("sigma: %s: buf/p malloc failed", __func__);
- g_free(compressed_buf);
g_free(firmware);
return SR_ERR_MALLOC;
}
return SR_OK;
}
-static int hw_init(const char *devinfo)
+static int hw_init(void)
+{
+
+ /* Nothing to do. */
+
+ return SR_OK;
+}
+
+static int hw_scan(void)
{
struct sr_dev_inst *sdi;
struct context *ctx;
-
- /* Avoid compiler warnings. */
- (void)devinfo;
+ struct ftdi_device_list *devlist;
+ char serial_txt[10];
+ uint32_t serial;
if (!(ctx = g_try_malloc(sizeof(struct context)))) {
sr_err("sigma: %s: ctx malloc failed", __func__);
- return 0; /* FIXME: Should be SR_ERR_MALLOC. */
+ return SR_ERR_MALLOC;
}
ftdi_init(&ctx->ftdic);
/* Look for SIGMAs. */
- if (ftdi_usb_open_desc(&ctx->ftdic, USB_VENDOR, USB_PRODUCT,
- USB_DESCRIPTION, NULL) < 0)
+
+ if (ftdi_usb_find_all(&ctx->ftdic, &devlist,
+ USB_VENDOR, USB_PRODUCT) <= 0)
goto free;
+ /* Make sure it's a version 1 or 2 SIGMA. */
+ ftdi_usb_get_strings(&ctx->ftdic, devlist->dev, NULL, 0, NULL, 0,
+ serial_txt, sizeof(serial_txt));
+ sscanf(serial_txt, "%x", &serial);
+
+ if (serial < 0xa6010000 || serial > 0xa602ffff) {
+ sr_err("sigma: Only SIGMA and SIGMA2 are supported "
+ "in this version of sigrok.");
+ goto free;
+ }
+
+ sr_info("Found ASIX SIGMA - Serial: %s", serial_txt);
+
ctx->cur_samplerate = 0;
ctx->period_ps = 0;
ctx->limit_msec = 0;
dev_insts = g_slist_append(dev_insts, sdi);
/* We will open the device again when we need it. */
- ftdi_usb_close(&ctx->ftdic);
+ ftdi_list_free(&devlist);
return 1;
}
/* Upload firmare. */
+ sr_info("sigma: Uploading firmware %s", firmware_files[firmware_idx]);
sigma_write(buf, buf_size, ctx);
g_free(buf);
ctx->cur_firmware = firmware_idx;
+ sr_info("sigma: Firmware uploaded");
+
return SR_OK;
}
ctx->samples_per_event = 16 / ctx->num_probes;
ctx->state.state = SIGMA_IDLE;
- sr_info("sigma: Firmware uploaded");
-
return ret;
}
* The Sigma supports complex triggers using boolean expressions, but this
* has not been implemented yet.
*/
-static int configure_probes(struct sr_dev_inst *sdi, GSList *probes)
+static int configure_probes(struct sr_dev_inst *sdi, const GSList *probes)
{
struct context *ctx = sdi->priv;
- struct sr_probe *probe;
- GSList *l;
+ const struct sr_probe *probe;
+ const GSList *l;
int trigger_set = 0;
int probebit;
return ret;
}
-static void *hw_dev_info_get(int dev_index, int dev_info_id)
+static const void *hw_dev_info_get(int dev_index, int dev_info_id)
{
struct sr_dev_inst *sdi;
struct context *ctx;
- void *info = NULL;
+ const void *info = NULL;
if (!(sdi = sr_dev_inst_get(dev_insts, dev_index))) {
sr_err("sigma: %s: sdi was NULL", __func__);
return SR_ST_NOT_FOUND;
}
-static int *hw_hwcap_get_all(void)
+static const int *hw_hwcap_get_all(void)
{
return hwcaps;
}
-static int hw_dev_config_set(int dev_index, int hwcap, void *value)
+static int hw_dev_config_set(int dev_index, int hwcap, const void *value)
{
struct sr_dev_inst *sdi;
struct context *ctx;
ctx = sdi->priv;
if (hwcap == SR_HWCAP_SAMPLERATE) {
- ret = set_samplerate(sdi, *(uint64_t *)value);
+ 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 = *(uint64_t *)value;
+ ctx->limit_msec = *(const uint64_t *)value;
if (ctx->limit_msec > 0)
ret = SR_OK;
else
ret = SR_ERR;
} else if (hwcap == SR_HWCAP_CAPTURE_RATIO) {
- ctx->capture_ratio = *(uint64_t *)value;
+ ctx->capture_ratio = *(const uint64_t *)value;
if (ctx->capture_ratio < 0 || ctx->capture_ratio > 100)
ret = SR_ERR;
else
if (running_msec < ctx->limit_msec && numchunks < 32767)
return TRUE; /* While capturing... */
- else {
-
- hw_dev_acquisition_stop(sdi->index, sdi);
+ else
+ hw_dev_acquisition_stop(sdi->index, sdi);
} else if (ctx->state.state == SIGMA_DOWNLOAD) {
if (ctx->state.chunks_downloaded >= numchunks) {
struct context *ctx;
struct sr_datafeed_packet *packet;
struct sr_datafeed_header *header;
+ struct sr_datafeed_meta_logic meta;
struct clockselect_50 clockselect;
int frac, triggerpin, ret;
uint8_t triggerselect;
/* Setup maximum post trigger time. */
sigma_set_register(WRITE_POST_TRIGGER,
- (ctx->capture_ratio * 255) / 100, ctx);
+ (ctx->capture_ratio * 255) / 100, ctx);
/* Start acqusition. */
gettimeofday(&ctx->start_tv, 0);
return SR_ERR_MALLOC;
}
- /* Add capture source. */
- sr_source_add(0, G_IO_IN, 10, receive_data, sdi);
-
/* Send header packet to the session bus. */
packet->type = SR_DF_HEADER;
packet->payload = header;
header->feed_version = 1;
gettimeofday(&header->starttime, NULL);
- header->samplerate = ctx->cur_samplerate;
- header->num_logic_probes = ctx->num_probes;
sr_session_send(ctx->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);
+
+ /* Add capture source. */
+ sr_source_add(0, G_IO_IN, 10, receive_data, sdi);
+
g_free(header);
g_free(packet);
SR_PRIV struct sr_dev_driver asix_sigma_driver_info = {
.name = "asix-sigma",
- .longname = "ASIX SIGMA",
+ .longname = "ASIX SIGMA/SIGMA2",
.api_version = 1,
.init = hw_init,
.cleanup = hw_cleanup,
+ .scan = hw_scan,
.dev_open = hw_dev_open,
.dev_close = hw_dev_close,
.dev_info_get = hw_dev_info_get,