-#ifndef ASIX_SIGMA_H
-#define ASIX_SIGMA_H
+/*
+ * This file is part of the libsigrok project.
+ *
+ * Copyright (C) 2010 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>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
-enum sigma_write_register
-{
+#ifndef LIBSIGROK_HARDWARE_ASIX_SIGMA_ASIX_SIGMA_H
+#define LIBSIGROK_HARDWARE_ASIX_SIGMA_ASIX_SIGMA_H
+
+#define LOG_PREFIX "asix-sigma"
+
+enum sigma_write_register {
WRITE_CLOCK_SELECT = 0,
WRITE_TRIGGER_SELECT0 = 1,
WRITE_TRIGGER_SELECT1 = 2,
WRITE_TRIGGER_OPTION = 6,
WRITE_PIN_VIEW = 7,
- WRITE_TEST = 15
+ WRITE_TEST = 15,
};
-enum sigma_read_register
-{
+enum sigma_read_register {
READ_ID = 0,
READ_TRIGGER_POS_LOW = 1,
READ_TRIGGER_POS_HIGH = 2,
READ_BLOCK_LAST_TS_HIGH = 11,
READ_PIN_VIEW = 12,
- READ_TEST = 15
+ READ_TEST = 15,
};
-#define REG_ADDR_LOW (0 << 4)
-#define REG_ADDR_HIGH (1 << 4)
-#define REG_DATA_LOW (2 << 4)
-#define REG_DATA_HIGH_WRITE (3 << 4)
-#define REG_READ_ADDR (4 << 4)
-#define REG_DRAM_WAIT_ACK (5 << 4)
+#define REG_ADDR_LOW (0x0 << 4)
+#define REG_ADDR_HIGH (0x1 << 4)
+#define REG_DATA_LOW (0x2 << 4)
+#define REG_DATA_HIGH_WRITE (0x3 << 4)
+#define REG_READ_ADDR (0x4 << 4)
+#define REG_DRAM_WAIT_ACK (0x5 << 4)
/* Bit (1 << 4) can be low or high (double buffer / cache) */
-#define REG_DRAM_BLOCK (6 << 4)
-#define REG_DRAM_BLOCK_BEGIN (8 << 4)
-#define REG_DRAM_BLOCK_DATA (10 << 4)
+#define REG_DRAM_BLOCK (0x6 << 4)
+#define REG_DRAM_BLOCK_BEGIN (0x8 << 4)
+#define REG_DRAM_BLOCK_DATA (0xa << 4)
+
+#define LEDSEL0 6
+#define LEDSEL1 7
#define NEXT_REG 1
#define CHUNK_SIZE 1024
-#endif /* ASIX_SIGMA_H */
+/*
+ * The entire ASIX Sigma DRAM is an array of struct sigma_dram_line[1024];
+ */
+
+/* One "DRAM cluster" contains a timestamp and 7 samples, 16b total. */
+struct sigma_dram_cluster {
+ uint8_t timestamp_lo;
+ uint8_t timestamp_hi;
+ struct {
+ uint8_t sample_hi;
+ uint8_t sample_lo;
+ } samples[7];
+};
+
+/* One "DRAM line" contains 64 "DRAM clusters", 1024b total. */
+struct sigma_dram_line {
+ struct sigma_dram_cluster cluster[64];
+};
+
+struct clockselect_50 {
+ uint8_t async;
+ uint8_t fraction;
+ uint16_t disabled_channels;
+};
+
+/* The effect of all these are still a bit unclear. */
+struct triggerinout {
+ uint8_t trgout_resistor_enable : 1;
+ uint8_t trgout_resistor_pullup : 1;
+ uint8_t reserved1 : 1;
+ uint8_t trgout_bytrigger : 1;
+ uint8_t trgout_byevent : 1;
+ uint8_t trgout_bytriggerin : 1;
+ uint8_t reserved2 : 2;
+
+ /* Should be set same as the first two */
+ uint8_t trgout_resistor_enable2 : 1;
+ uint8_t trgout_resistor_pullup2 : 1;
+
+ uint8_t reserved3 : 1;
+ uint8_t trgout_long : 1;
+ uint8_t trgout_pin : 1; /* Use 1k resistor. Pullup? */
+ uint8_t trgin_negate : 1;
+ uint8_t trgout_enable : 1;
+ uint8_t trgin_enable : 1;
+};
+
+struct triggerlut {
+ /* The actual LUTs. */
+ uint16_t m0d[4], m1d[4], m2d[4];
+ uint16_t m3, m3s, m4;
+
+ /* Paramters should be sent as a single register write. */
+ struct {
+ uint8_t selc : 2;
+ uint8_t selpresc : 6;
+
+ uint8_t selinc : 2;
+ uint8_t selres : 2;
+ uint8_t sela : 2;
+ uint8_t selb : 2;
+
+ uint16_t cmpb;
+ uint16_t cmpa;
+ } params;
+};
+
+/* Trigger configuration */
+struct sigma_trigger {
+ /* Only two channels can be used in mask. */
+ uint16_t risingmask;
+ uint16_t fallingmask;
+
+ /* Simple trigger support (<= 50 MHz). */
+ uint16_t simplemask;
+ uint16_t simplevalue;
+
+ /* TODO: Advanced trigger support (boolean expressions). */
+};
+
+/* Events for trigger operation. */
+enum triggerop {
+ OP_LEVEL = 1,
+ OP_NOT,
+ OP_RISE,
+ OP_FALL,
+ OP_RISEFALL,
+ OP_NOTRISE,
+ OP_NOTFALL,
+ OP_NOTRISEFALL,
+};
+
+/* Logical functions for trigger operation. */
+enum triggerfunc {
+ FUNC_AND = 1,
+ FUNC_NAND,
+ FUNC_OR,
+ FUNC_NOR,
+ FUNC_XOR,
+ FUNC_NXOR,
+};
+
+struct sigma_state {
+ enum {
+ SIGMA_UNINITIALIZED = 0,
+ SIGMA_IDLE,
+ SIGMA_CAPTURE,
+ SIGMA_DOWNLOAD,
+ } state;
+
+ uint16_t lastts;
+ uint16_t lastsample;
+};
+
+/* Private, per-device-instance driver context. */
+struct dev_context {
+ struct ftdi_context ftdic;
+ uint64_t cur_samplerate;
+ uint64_t period_ps;
+ uint64_t limit_msec;
+ struct timeval start_tv;
+ int cur_firmware;
+ int num_channels;
+ int cur_channels;
+ int samples_per_event;
+ int capture_ratio;
+ struct sigma_trigger trigger;
+ int use_triggers;
+ struct sigma_state state;
+ void *cb_data;
+};
-// vim:noexpandtab:ts=8 sts=8 sw=8
+#endif
projects / libsigrok.git / blobdiff