From: Peter Zotov Date: Fri, 22 Aug 2014 18:27:56 +0000 (+0400) Subject: Add support for mcupro Logic16, a Saleae Logic16 clone. X-Git-Tag: libsigrok-0.4.0~1086 X-Git-Url: https://sigrok.org/gitaction?a=commitdiff_plain;h=6f479a0a72492b2a28344de04776733b19fdbaa9;p=libsigrok.git Add support for mcupro Logic16, a Saleae Logic16 clone. From sigrok's point of view, this analyzer has two differences: * It does not require uploading the firmware. * It returns garbage in some registers used for sanity checks. Saleae's software ignores that garbage; sigrok only does if it specifically detects the mcupro clone. --- diff --git a/src/hardware/saleae-logic16/protocol.c b/src/hardware/saleae-logic16/protocol.c index 26db6515..ac53cee8 100644 --- a/src/hardware/saleae-logic16/protocol.c +++ b/src/hardware/saleae-logic16/protocol.c @@ -292,8 +292,8 @@ static int prime_fpga(const struct sr_dev_inst *sdi) if ((ret = read_fpga_register(sdi, 0, &version)) != SR_OK) return ret; - if (version != 0x10) { - sr_err("Invalid FPGA bitstream version: 0x%02x != 0x10.", version); + if (version != 0x10 && version != 0x40 && version != 0x41) { + sr_err("Unsupported FPGA version: 0x%02x.", version); return SR_ERR; } @@ -337,53 +337,55 @@ static int upload_fpga_bitstream(const struct sr_dev_inst *sdi, if (devc->cur_voltage_range == vrange) return SR_OK; - switch (vrange) { - case VOLTAGE_RANGE_18_33_V: - filename = FPGA_FIRMWARE_18; - break; - case VOLTAGE_RANGE_5_V: - filename = FPGA_FIRMWARE_33; - break; - default: - sr_err("Unsupported voltage range."); - return SR_ERR; - } + if (devc->fpga_variant == FPGA_VARIANT_ORIGINAL) { + switch (vrange) { + case VOLTAGE_RANGE_18_33_V: + filename = FPGA_FIRMWARE_18; + break; + case VOLTAGE_RANGE_5_V: + filename = FPGA_FIRMWARE_33; + break; + default: + sr_err("Unsupported voltage range."); + return SR_ERR; + } - sr_info("Uploading FPGA bitstream at %s.", filename); - if ((fw = g_fopen(filename, "rb")) == NULL) { - sr_err("Unable to open bitstream file %s for reading: %s.", - filename, strerror(errno)); - return SR_ERR; - } + sr_info("Uploading FPGA bitstream at %s.", filename); + if ((fw = g_fopen(filename, "rb")) == NULL) { + sr_err("Unable to open bitstream file %s for reading: %s.", + filename, strerror(errno)); + return SR_ERR; + } - buf[0] = COMMAND_FPGA_UPLOAD_INIT; - if ((ret = do_ep1_command(sdi, buf, 1, NULL, 0)) != SR_OK) { - fclose(fw); - return ret; - } + buf[0] = COMMAND_FPGA_UPLOAD_INIT; + if ((ret = do_ep1_command(sdi, buf, 1, NULL, 0)) != SR_OK) { + fclose(fw); + return ret; + } - while (1) { - chunksize = fread(buf, 1, sizeof(buf), fw); - if (chunksize == 0) - break; + while (1) { + chunksize = fread(buf, 1, sizeof(buf), fw); + if (chunksize == 0) + break; - for (offset = 0; offset < chunksize; offset += 62) { - len = (offset + 62 > chunksize ? - chunksize - offset : 62); - command[0] = COMMAND_FPGA_UPLOAD_SEND_DATA; - command[1] = len; - memcpy(command + 2, buf + offset, len); - ret = do_ep1_command(sdi, command, len + 2, NULL, 0); - if (ret != SR_OK) { - fclose(fw); - return ret; + for (offset = 0; offset < chunksize; offset += 62) { + len = (offset + 62 > chunksize ? + chunksize - offset : 62); + command[0] = COMMAND_FPGA_UPLOAD_SEND_DATA; + command[1] = len; + memcpy(command + 2, buf + offset, len); + ret = do_ep1_command(sdi, command, len + 2, NULL, 0); + if (ret != SR_OK) { + fclose(fw); + return ret; + } } - } - sr_info("Uploaded %d bytes.", chunksize); + sr_info("Uploaded %d bytes.", chunksize); + } + fclose(fw); + sr_info("FPGA bitstream upload done."); } - fclose(fw); - sr_info("FPGA bitstream upload done."); if ((ret = prime_fpga(sdi)) != SR_OK) return ret; @@ -467,7 +469,7 @@ SR_PRIV int logic16_setup_acquisition(const struct sr_dev_inst *sdi, /* Ignore FIFO overflow on previous capture */ reg1 &= ~0x20; - if (reg1 != 0x08) { + if (devc->fpga_variant == FPGA_VARIANT_ORIGINAL && reg1 != 0x08) { sr_dbg("Invalid state at acquisition setup: 0x%02x != 0x08.", reg1); return SR_ERR; } @@ -496,7 +498,7 @@ SR_PRIV int logic16_setup_acquisition(const struct sr_dev_inst *sdi, if ((ret = read_fpga_register(sdi, 1, ®1)) != SR_OK) return ret; - if (reg1 != 0x48) { + if (devc->fpga_variant == FPGA_VARIANT_ORIGINAL && reg1 != 0x48) { sr_dbg("Invalid state at acquisition setup: 0x%02x != 0x48.", reg1); return SR_ERR; } @@ -504,7 +506,7 @@ SR_PRIV int logic16_setup_acquisition(const struct sr_dev_inst *sdi, if ((ret = read_fpga_register(sdi, 10, ®10)) != SR_OK) return ret; - if (reg10 != clock_select) { + if (devc->fpga_variant == FPGA_VARIANT_ORIGINAL && reg10 != clock_select) { sr_dbg("Invalid state at acquisition setup: 0x%02x != 0x%02x.", reg10, clock_select); return SR_ERR; @@ -533,6 +535,9 @@ SR_PRIV int logic16_abort_acquisition(const struct sr_dev_inst *sdi) }; int ret; uint8_t reg1, reg8, reg9; + struct dev_context *devc; + + devc = sdi->priv; if ((ret = do_ep1_command(sdi, command, 1, NULL, 0)) != SR_OK) return ret; @@ -543,7 +548,7 @@ SR_PRIV int logic16_abort_acquisition(const struct sr_dev_inst *sdi) if ((ret = read_fpga_register(sdi, 1, ®1)) != SR_OK) return ret; - if ((reg1 & ~0x20) != 0x08) { + if (devc->fpga_variant == FPGA_VARIANT_ORIGINAL && (reg1 & ~0x20) != 0x08) { sr_dbg("Invalid state at acquisition stop: 0x%02x != 0x08.", reg1 & ~0x20); return SR_ERR; } @@ -554,7 +559,7 @@ SR_PRIV int logic16_abort_acquisition(const struct sr_dev_inst *sdi) if ((ret = read_fpga_register(sdi, 9, ®9)) != SR_OK) return ret; - if (reg1 & 0x20) { + if (devc->fpga_variant == FPGA_VARIANT_ORIGINAL && reg1 & 0x20) { sr_warn("FIFO overflow, capture data may be truncated."); return SR_ERR; } @@ -564,6 +569,7 @@ SR_PRIV int logic16_abort_acquisition(const struct sr_dev_inst *sdi) SR_PRIV int logic16_init_device(const struct sr_dev_inst *sdi) { + uint8_t version; struct dev_context *devc; int ret; @@ -577,6 +583,17 @@ SR_PRIV int logic16_init_device(const struct sr_dev_inst *sdi) if ((ret = read_eeprom(sdi, 8, 8, devc->eeprom_data)) != SR_OK) return ret; + /* mcupro Saleae16 has firmware pre-stored in FPGA. + So, we can query it right away. */ + if (read_fpga_register(sdi, 0, &version) == SR_OK && + (version == 0x40 || version == 0x41)) { + sr_info("mcupro Saleae16 detected."); + devc->fpga_variant = FPGA_VARIANT_MCUPRO; + } else { + sr_info("Original Saleae Logic16 detected."); + devc->fpga_variant = FPGA_VARIANT_ORIGINAL; + } + ret = upload_fpga_bitstream(sdi, devc->selected_voltage_range); if (ret != SR_OK) return ret; diff --git a/src/hardware/saleae-logic16/protocol.h b/src/hardware/saleae-logic16/protocol.h index 8a1ded82..cdfc3681 100644 --- a/src/hardware/saleae-logic16/protocol.h +++ b/src/hardware/saleae-logic16/protocol.h @@ -35,8 +35,16 @@ enum voltage_range { VOLTAGE_RANGE_5_V, /* 5V logic */ }; +enum fpga_variant { + FPGA_VARIANT_ORIGINAL, + FPGA_VARIANT_MCUPRO /* mcupro clone v4.6 with Actel FPGA */ +}; + /** Private, per-device-instance driver context. */ struct dev_context { + /** Distinguishing between original Logic16 and clones */ + enum fpga_variant fpga_variant; + /* * Since we can't keep track of a Logic16 device after upgrading * the firmware (it renumerates into a different device address