From: Kevin Grant Date: Sat, 3 Apr 2021 19:49:25 +0000 (+0100) Subject: kingst-la2016: replace usb control transfer brequest numbers with more meaningful... X-Git-Url: https://sigrok.org/gitaction?a=commitdiff_plain;h=00849545026926298b68aa8eae76ae76310f8f9e;p=libsigrok.git kingst-la2016: replace usb control transfer brequest numbers with more meaningful tokens --- diff --git a/src/hardware/kingst-la2016/protocol.c b/src/hardware/kingst-la2016/protocol.c index 0e4d9455..f0d23e31 100644 --- a/src/hardware/kingst-la2016/protocol.c +++ b/src/hardware/kingst-la2016/protocol.c @@ -41,6 +41,15 @@ #define MAX_PWM_FREQ SR_MHZ(20) #define PWM_CLOCK SR_MHZ(200) +/* usb vendor class control requests to the cypress FX2 microcontroller */ +#define CMD_EEPROM 0xa2 /* ctrl_in reads, ctrl_out writes */ +#define CMD_FPGA_INIT 0x50 /* used before and after FPGA bitstream loading */ +#define CMD_FPGA_SPI 0x20 /* access registers in the FPGA over SPI bus, ctrl_in reads, ctrl_out writes */ +#define CMD_FPGA_ENABLE 0x10 +#define CMD_BULK_RESET 0x38 /* flush FX2 usb endpoint 6 IN fifos */ +#define CMD_BULK_START 0x30 /* begin transfer of capture data via usb endpoint 6 IN */ +#define CMD_KAUTH 0x60 /* communicate with authentication ic U10, not used */ + /* registers for control request 32: */ #define CTRL_RUN 0x00 #define CTRL_PWM_EN 0x02 @@ -125,7 +134,7 @@ static int upload_fpga_bitstream(const struct sr_dev_inst *sdi) devc->bitstream_size = (uint32_t)bitstream.size; wrptr = buffer; write_u32le_inc(&wrptr, devc->bitstream_size); - if ((ret = ctrl_out(sdi, 80, 0x00, 0, buffer, wrptr - buffer)) != SR_OK) { + if ((ret = ctrl_out(sdi, CMD_FPGA_INIT, 0x00, 0, buffer, wrptr - buffer)) != SR_OK) { sr_err("failed to give upload init command"); sr_resource_close(drvc->sr_ctx, &bitstream); return ret; @@ -168,7 +177,7 @@ static int upload_fpga_bitstream(const struct sr_dev_inst *sdi) return ret; sr_info("FPGA bitstream upload (%" PRIu64 " bytes) done.", bitstream.size); - if ((ret = ctrl_in(sdi, 80, 0x00, 0, &cmd_resp, sizeof(cmd_resp))) != SR_OK) { + if ((ret = ctrl_in(sdi, CMD_FPGA_INIT, 0x00, 0, &cmd_resp, sizeof(cmd_resp))) != SR_OK) { sr_err("failed to read response after FPGA bitstream upload"); return ret; } @@ -179,7 +188,7 @@ static int upload_fpga_bitstream(const struct sr_dev_inst *sdi) g_usleep(30000); - if ((ret = ctrl_out(sdi, 16, 0x01, 0, NULL, 0)) != SR_OK) { + if ((ret = ctrl_out(sdi, CMD_FPGA_ENABLE, 0x01, 0, NULL, 0)) != SR_OK) { sr_err("failed enable fpga"); return ret; } @@ -207,7 +216,7 @@ static int set_threshold_voltage(const struct sr_dev_inst *sdi, float voltage) wrptr = buffer; write_u32le_inc(&wrptr, cfgval); - ret = ctrl_out(sdi, 32, CTRL_THRESHOLD, 0, buffer, wrptr - buffer); + ret = ctrl_out(sdi, CMD_FPGA_SPI, CTRL_THRESHOLD, 0, buffer, wrptr - buffer); if (ret != SR_OK) { sr_err("Error setting %.2fV threshold voltage (%d)", voltage, ret); @@ -231,7 +240,7 @@ static int enable_pwm(const struct sr_dev_inst *sdi, uint8_t p1, uint8_t p2) if (p2) cfg |= 1 << 1; sr_dbg("set pwm enable %d %d", p1, p2); - ret = ctrl_out(sdi, 32, CTRL_PWM_EN, 0, &cfg, sizeof(cfg)); + ret = ctrl_out(sdi, CMD_FPGA_SPI, CTRL_PWM_EN, 0, &cfg, sizeof(cfg)); if (ret != SR_OK) { sr_err("error setting new pwm enable 0x%02x", cfg); return ret; @@ -274,7 +283,7 @@ static int set_pwm(const struct sr_dev_inst *sdi, uint8_t which, float freq, flo wrptr = buf; write_u32le_inc(&wrptr, cfg.period); write_u32le_inc(&wrptr, cfg.duty); - ret = ctrl_out(sdi, 32, CTRL_PWM[which - 1], 0, buf, wrptr - buf); + ret = ctrl_out(sdi, CMD_FPGA_SPI, CTRL_PWM[which - 1], 0, buf, wrptr - buf); if (ret != SR_OK) { sr_err("error setting new pwm%d config %d %d", which, cfg.period, cfg.duty); return ret; @@ -399,7 +408,7 @@ static int set_trigger_config(const struct sr_dev_inst *sdi) write_u32le_inc(&wrptr, cfg.enabled); write_u32le_inc(&wrptr, cfg.level); write_u32le_inc(&wrptr, cfg.high_or_falling); - ret = ctrl_out(sdi, 32, CTRL_TRIGGER, 16, buf, wrptr - buf); + ret = ctrl_out(sdi, CMD_FPGA_SPI, CTRL_TRIGGER, 16, buf, wrptr - buf); if (ret != SR_OK) { sr_err("error setting trigger config!"); return ret; @@ -450,7 +459,7 @@ static int set_sample_config(const struct sr_dev_inst *sdi) write_u32le_inc(&wrptr, (total * devc->capture_ratio) / 100); write_u16le_inc(&wrptr, clock_divisor); - ret = ctrl_out(sdi, 32, CTRL_SAMPLING, 0, buf, wrptr - buf); + ret = ctrl_out(sdi, CMD_FPGA_SPI, CTRL_SAMPLING, 0, buf, wrptr - buf); if (ret != SR_OK) { sr_err("error setting sample config!"); return ret; @@ -472,7 +481,7 @@ static uint16_t run_state(const struct sr_dev_inst *sdi) uint16_t state; int ret; - if ((ret = ctrl_in(sdi, 32, CTRL_RUN, 0, &state, sizeof(state))) != SR_OK) { + if ((ret = ctrl_in(sdi, CMD_FPGA_SPI, CTRL_RUN, 0, &state, sizeof(state))) != SR_OK) { sr_err("failed to read run state!"); return ret; } @@ -485,7 +494,7 @@ static int set_run_mode(const struct sr_dev_inst *sdi, uint8_t fast_blinking) { int ret; - if ((ret = ctrl_out(sdi, 32, CTRL_RUN, 0, &fast_blinking, sizeof(fast_blinking))) != SR_OK) { + if ((ret = ctrl_out(sdi, CMD_FPGA_SPI, CTRL_RUN, 0, &fast_blinking, sizeof(fast_blinking))) != SR_OK) { sr_err("failed to send set-run-mode command %d", fast_blinking); return ret; } @@ -502,7 +511,7 @@ static int get_capture_info(const struct sr_dev_inst *sdi) devc = sdi->priv; - if ((ret = ctrl_in(sdi, 32, CTRL_BULK, 0, buf, sizeof(buf))) != SR_OK) { + if ((ret = ctrl_in(sdi, CMD_FPGA_SPI, CTRL_BULK, 0, buf, sizeof(buf))) != SR_OK) { sr_err("failed to read capture info!"); return ret; } @@ -543,7 +552,7 @@ SR_PRIV int la2016_setup_acquisition(const struct sr_dev_inst *sdi) return ret; cmd = 0; - if ((ret = ctrl_out(sdi, 32, 0x03, 0, &cmd, sizeof(cmd))) != SR_OK) { + if ((ret = ctrl_out(sdi, CMD_FPGA_SPI, 0x03, 0, &cmd, sizeof(cmd))) != SR_OK) { sr_err("failed to send stop sampling command"); return ret; } @@ -607,7 +616,7 @@ SR_PRIV int la2016_start_retrieval(const struct sr_dev_inst *sdi, libusb_transfe sr_dbg("want to read %d tfer-packets starting from pos %d", devc->n_transfer_packets_to_read, devc->read_pos); - if ((ret = ctrl_out(sdi, 56, 0x00, 0, NULL, 0)) != SR_OK) { + if ((ret = ctrl_out(sdi, CMD_BULK_RESET, 0x00, 0, NULL, 0)) != SR_OK) { sr_err("failed to reset bulk state"); return ret; } @@ -615,11 +624,11 @@ SR_PRIV int la2016_start_retrieval(const struct sr_dev_inst *sdi, libusb_transfe wrptr = wrbuf; write_u32le_inc(&wrptr, devc->read_pos); write_u32le_inc(&wrptr, devc->n_bytes_to_read); - if ((ret = ctrl_out(sdi, 32, CTRL_BULK, 0, wrbuf, wrptr - wrbuf)) != SR_OK) { + if ((ret = ctrl_out(sdi, CMD_FPGA_SPI, CTRL_BULK, 0, wrbuf, wrptr - wrbuf)) != SR_OK) { sr_err("failed to send bulk config"); return ret; } - if ((ret = ctrl_out(sdi, 48, 0x00, 0, NULL, 0)) != SR_OK) { + if ((ret = ctrl_out(sdi, CMD_BULK_START, 0x00, 0, NULL, 0)) != SR_OK) { sr_err("failed to unblock bulk transfers"); return ret; } @@ -674,13 +683,13 @@ SR_PRIV int la2016_init_device(const struct sr_dev_inst *sdi) devc = sdi->priv; - if ((ret = ctrl_in(sdi, 162, 0x20, 0, &i1, sizeof(i1))) != SR_OK) { + if ((ret = ctrl_in(sdi, CMD_EEPROM, 0x20, 0, &i1, sizeof(i1))) != SR_OK) { sr_err("failed to read i1"); return ret; } sr_dbg("i1: 0x%08x", i1); - if ((ret = ctrl_in(sdi, 162, 0x08, 0, &i2, sizeof(i2))) != SR_OK) { + if ((ret = ctrl_in(sdi, CMD_EEPROM, 0x08, 0, &i2, sizeof(i2))) != SR_OK) { sr_err("failed to read i2"); return ret; } @@ -707,12 +716,12 @@ SR_PRIV int la2016_init_device(const struct sr_dev_inst *sdi) unknown_cmd1 = unknown_cmd1_342; expected_unknown_resp1 = expected_unknown_resp1_342; } - if ((ret = ctrl_out(sdi, 96, 0x00, 0, unknown_cmd1, sizeof(unknown_cmd1_340))) != SR_OK) { + if ((ret = ctrl_out(sdi, CMD_KAUTH, 0x00, 0, unknown_cmd1, sizeof(unknown_cmd1_340))) != SR_OK) { sr_err("failed to send unknown_cmd1"); return ret; } g_usleep(80 * 1000); - if ((ret = ctrl_in(sdi, 96, 0x00, 0, unknown_resp1, sizeof(unknown_resp1))) != SR_OK) { + if ((ret = ctrl_in(sdi, CMD_KAUTH, 0x00, 0, unknown_resp1, sizeof(unknown_resp1))) != SR_OK) { sr_err("failed to read unknown_resp1"); return ret; } @@ -723,19 +732,19 @@ SR_PRIV int la2016_init_device(const struct sr_dev_inst *sdi) if (state != 0x85e9) sr_warn("expect run state to be 0x85e9, but it reads 0x%04x", state); - if ((ret = ctrl_out(sdi, 96, 0x00, 0, unknown_cmd2, sizeof(unknown_cmd2))) != SR_OK) { + if ((ret = ctrl_out(sdi, CMD_KAUTH, 0x00, 0, unknown_cmd2, sizeof(unknown_cmd2))) != SR_OK) { sr_err("failed to send unknown_cmd2"); return ret; } g_usleep(80 * 1000); - if ((ret = ctrl_in(sdi, 96, 0x00, 0, unknown_resp2, sizeof(unknown_resp2))) != SR_OK) { + if ((ret = ctrl_in(sdi, CMD_KAUTH, 0x00, 0, unknown_resp2, sizeof(unknown_resp2))) != SR_OK) { sr_err("failed to read unknown_resp2"); return ret; } if (memcmp(unknown_resp2, expected_unknown_resp2, sizeof(unknown_resp2))) sr_dbg("unknown_cmd2 response is not as expected!"); - if ((ret = ctrl_out(sdi, 56, 0x00, 0, NULL, 0)) != SR_OK) { + if ((ret = ctrl_out(sdi, CMD_BULK_RESET, 0x00, 0, NULL, 0)) != SR_OK) { sr_err("failed to send unknown_cmd3"); return ret; } @@ -748,7 +757,7 @@ SR_PRIV int la2016_deinit_device(const struct sr_dev_inst *sdi) { int ret; - if ((ret = ctrl_out(sdi, 16, 0x00, 0, NULL, 0)) != SR_OK) { + if ((ret = ctrl_out(sdi, CMD_FPGA_ENABLE, 0x00, 0, NULL, 0)) != SR_OK) { sr_err("failed to send deinit command"); return ret; }