static int g_filter_status[8] = { 0 };
static int g_filter_enable = 0;
-static int g_freq_value = 100;
+static int g_freq_value = 1;
static int g_freq_scale = FREQ_SCALE_MHZ;
-static int g_memory_size = MEMORY_SIZE_512K;
-static int g_ramsize_triggerbar_addr = 0x80000 >> 2;
-static int g_triggerbar_addr = 0x3fe;
+static int g_memory_size = MEMORY_SIZE_8K;
+static int g_ramsize_triggerbar_addr = 2 * 1024;
+static int g_triggerbar_addr = 0;
static int g_compression = COMPRESSION_NONE;
/* Maybe unk specifies an "endpoint" or "register" of sorts. */
return gl_reg_write(devh, START_STATUS, unk << 6 | flags);
}
+#if 0
static int __analyzer_set_freq(libusb_device_handle *devh, int freq, int scale)
{
int reg0 = 0, divisor = 0, reg2 = 0;
return 0;
}
+#endif
+
+/*
+ * It seems that ...
+ * FREQUENCT_REG0 - division factor (?)
+ * FREQUENCT_REG1 - multiplication factor (?)
+ * FREQUENCT_REG4 - clock selection (?)
+ *
+ * clock selection
+ * 0 10MHz 16 1MHz 32 100kHz 48 10kHz 64 1kHz
+ * 1 5MHz 17 500kHz 33 50kHz 49 5kHz 65 500Hz
+ * 2 2.5MHz . . 50 2.5kHz 66 250Hz
+ * . . . . 67 125Hz
+ * . . . . 68 62.5Hz
+ */
+static int __analyzer_set_freq(libusb_device_handle *devh, int freq, int scale)
+{
+ struct freq_factor {
+ int freq;
+ int scale;
+ int sel;
+ int div;
+ int mul;
+ };
+
+ static const struct freq_factor f[] = {
+ { 200, FREQ_SCALE_MHZ, 0, 1, 20 },
+ { 150, FREQ_SCALE_MHZ, 0, 1, 15 },
+ { 100, FREQ_SCALE_MHZ, 0, 1, 10 },
+ { 80, FREQ_SCALE_MHZ, 0, 2, 16 },
+ { 50, FREQ_SCALE_MHZ, 0, 2, 10 },
+ { 25, FREQ_SCALE_MHZ, 1, 5, 25 },
+ { 10, FREQ_SCALE_MHZ, 1, 5, 10 },
+ { 1, FREQ_SCALE_MHZ, 16, 5, 5 },
+ { 800, FREQ_SCALE_KHZ, 17, 5, 8 },
+ { 400, FREQ_SCALE_KHZ, 32, 5, 20 },
+ { 200, FREQ_SCALE_KHZ, 32, 5, 10 },
+ { 100, FREQ_SCALE_KHZ, 32, 5, 5 },
+ { 50, FREQ_SCALE_KHZ, 33, 5, 5 },
+ { 25, FREQ_SCALE_KHZ, 49, 5, 25 },
+ { 5, FREQ_SCALE_KHZ, 50, 5, 10 },
+ { 1, FREQ_SCALE_KHZ, 64, 5, 5 },
+ { 500, FREQ_SCALE_HZ, 64, 10, 5 },
+ { 100, FREQ_SCALE_HZ, 68, 5, 8 },
+ { 0, 0, 0, 0, 0 }
+ };
+
+ int i;
+
+ for (i = 0; f[i].freq; i++) {
+ if (scale == f[i].scale && freq == f[i].freq)
+ break;
+ }
+ if (!f[i].freq)
+ return -1;
+
+ sr_dbg("zp: Setting samplerate regs (freq=%d, scale=%d): "
+ "reg0: %d, reg1: %d, reg2: %d, reg3: %d.",
+ freq, scale, f[i].div, f[i].mul, 0x02, f[i].sel);
+
+ if (gl_reg_write(devh, FREQUENCY_REG0, f[i].div) < 0)
+ return -1;
+
+ if (gl_reg_write(devh, FREQUENCY_REG1, f[i].mul) < 0)
+ return -1;
+
+ if (gl_reg_write(devh, FREQUENCY_REG2, 0x02) < 0)
+ return -1;
+
+ if (gl_reg_write(devh, FREQUENCY_REG4, f[i].sel) < 0)
+ return -1;
+
+ return 0;
+}
static void __analyzer_set_ramsize_trigger_address(libusb_device_handle *devh,
unsigned int address)
__analyzer_set_triggerbar_address(devh, g_triggerbar_addr);
/* Set_Dont_Care_TriggerBar */
- gl_reg_write(devh, DONT_CARE_TRIGGERBAR, 0x01);
+ if (g_triggerbar_addr)
+ gl_reg_write(devh, DONT_CARE_TRIGGERBAR, 0x00);
+ else
+ gl_reg_write(devh, DONT_CARE_TRIGGERBAR, 0x01);
/* Enable_Status */
analyzer_set_filter(devh);
SR_PRIV void analyzer_add_trigger(int channel, int type)
{
- int i;
-
- if ((channel & 0xf) >= 8)
- return;
-
- if (type == TRIGGER_HIGH || type == TRIGGER_LOW) {
- if (channel & CHANNEL_A)
- i = 0;
- else if (channel & CHANNEL_B)
- i = 2;
- else if (channel & CHANNEL_C)
- i = 4;
- else if (channel & CHANNEL_D)
- i = 6;
- else
- return;
- if ((channel & 0xf) >= 4) {
- i++;
- channel -= 4;
- }
- g_trigger_status[i] |=
- 1 << ((2 * channel) + (type == TRIGGER_LOW ? 1 : 0));
- } else {
- if (type == TRIGGER_POSEDGE)
- g_trigger_status[8] = 0x40;
- else if (type == TRIGGER_NEGEDGE)
- g_trigger_status[8] = 0x80;
- else
- g_trigger_status[8] = 0xc0;
-
- /* FIXME: Just guessed the index; need to verify. */
- if (channel & CHANNEL_B)
- g_trigger_status[8] += 8;
- else if (channel & CHANNEL_C)
- g_trigger_status[8] += 16;
- else if (channel & CHANNEL_D)
- g_trigger_status[8] += 24;
- g_trigger_status[8] += channel % 8;
+ switch (type) {
+ case TRIGGER_HIGH:
+ g_trigger_status[channel / 4] |= 1 << (channel % 4 * 2);
+ break;
+ case TRIGGER_LOW:
+ g_trigger_status[channel / 4] |= 2 << (channel % 4 * 2);
+ break;
+#if 0
+ case TRIGGER_POSEDGE:
+ g_trigger_status[8] = 0x40 | channel;
+ break;
+ case TRIGGER_NEGEDGE:
+ g_trigger_status[8] = 0x80 | channel;
+ break;
+ case TRIGGER_ANYEDGE:
+ g_trigger_status[8] = 0xc0 | channel;
+ break;
+#endif
+ default:
+ break;
}
}
g_triggerbar_addr = address;
}
+SR_PRIV unsigned int analyzer_read_status(libusb_device_handle *devh)
+{
+ return gl_reg_read(devh, DEV_STATUS);
+}
+
SR_PRIV unsigned int analyzer_read_id(libusb_device_handle *devh)
{
return gl_reg_read(devh, DEV_ID1) << 8 | gl_reg_read(devh, DEV_ID0);
projects / libsigrok.git / blobdiff