+++ /dev/null
-/* -*- c++ -*- */
-/*
- * Copyright 2007 Free Software Foundation, Inc.
- *
- * This file is part of GNU Radio
- *
- * GNU Radio 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, or (at your option)
- * any later version.
- *
- * GNU Radio 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, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <usrp_inband_usb_packet.h>
-
-#include <usrp_bytesex.h>
-#include <iostream>
-#include <stdio.h>
-#include <string.h>
-
-/*!
- * \brief Aligns the packet payload on a 32 bit boundary. This is essential to
- * all control/status packets so that the inband FPGA code can parse them
- * easily.
- *
- * \returns true if successful or if the packet was already aligned; false if it
- * cannot be aligned.
- */
-bool usrp_inband_usb_packet::align32()
-{
- int p_len = payload_len();
-
- int bytes_needed = 4 - (p_len % 4);
-
- if(bytes_needed == 4)
- return true;
-
- // If the room left in the packet is less than the number of bytes
- // needed, return false to indicate no room to align
- if((MAX_PAYLOAD - p_len) < bytes_needed)
- return false;
-
- incr_header_len(bytes_needed);
-
- return true;
-}
-
-/*!
- * \brief Adds a ping command to the current control packet.
- *
- * The \p rid is the rid to be associated with the ping response and \p ping_val
- * is currently unused.
- *
- * \returns true if adding the ping command was successful, false otherwise
- * (i.e. no space in the current packet).
- */
-bool usrp_inband_usb_packet::cs_ping(long rid, long ping_val)
-{
- if(!align32())
- return false;
-
- int p_len = payload_len();
-
- if((MAX_PAYLOAD - p_len) < (CS_PING_LEN + CS_FIXED_LEN))
- return false;
-
- uint32_t ping = (
- ((OP_PING_FIXED & CS_OPCODE_MASK) << CS_OPCODE_SHIFT)
- | ((CS_PING_LEN & CS_LEN_MASK) << CS_LEN_SHIFT)
- | ((rid & CS_RID_MASK) << CS_RID_SHIFT)
- | (ping_val & CS_PINGVAL_MASK)
-
- );
-
- uint32_t *payload = (uint32_t *) (d_payload + p_len);
- *payload = host_to_usrp_u32(ping);
-
- // Update payload length
- incr_header_len(CS_FIXED_LEN + CS_PING_LEN);
-
- return true;
-}
-
-/*!
- * \brief Adds a ping response to the packet. This is used by the fake USRP
- * code to generate fake responses for pings.
- *
- * The \p rid is the RID to be associated with the response and \p ping_val is
- * currently unused.
- *
- * \returns true if the ping reply was added successfully, false otherwise.
- */
-bool usrp_inband_usb_packet::cs_ping_reply(long rid, long ping_val)
-{
- if(!align32())
- return false;
-
- int p_len = payload_len();
-
- if((MAX_PAYLOAD - p_len) < (CS_PING_LEN + CS_FIXED_LEN))
- return false;
-
- uint32_t ping = (
- ((OP_PING_FIXED_REPLY & CS_OPCODE_MASK) << CS_OPCODE_SHIFT)
- | ((CS_PING_LEN & CS_LEN_MASK) << CS_LEN_SHIFT)
- | ((rid & CS_RID_MASK) << CS_RID_SHIFT)
- | ((ping_val & CS_PINGVAL_MASK) << CS_PINGVAL_SHIFT)
-
- );
-
- uint32_t *payload = (uint32_t *) (d_payload + p_len);
- *payload = host_to_usrp_u32(ping);
-
- // Update payload length
- incr_header_len(CS_FIXED_LEN + CS_PING_LEN);
-
- return true;
-}
-
-/*!
- * \brief Adds a write register command to the packet.
- *
- * The \p reg_num is the register number for which the value \p val will be
- * written to.
- *
- * \returns true if the command was added to the packet successfully, false
- * otherwise.
- */
-bool usrp_inband_usb_packet::cs_write_reg(long reg_num, long val)
-{
- if(!align32())
- return false;
-
- int p_len = payload_len();
-
- if((MAX_PAYLOAD - p_len) < (CS_WRITEREG_LEN + CS_FIXED_LEN))
- return false;
-
- uint32_t word0 = 0;
-
- // Build the first word which includes the register number
- word0 = (
- ((OP_WRITE_REG & CS_OPCODE_MASK) << CS_OPCODE_SHIFT)
- | ((CS_WRITEREG_LEN & CS_LEN_MASK) << CS_LEN_SHIFT)
- | ((reg_num & CS_REGNUM_MASK) << CS_REGNUM_SHIFT)
- );
-
- uint32_t *payload = (uint32_t *) (d_payload + p_len);
- *payload = host_to_usrp_u32(word0);
-
- // The second word is solely the register value to be written
- // FIXME: should this be unsigned?
- payload += 1;
- *payload = host_to_usrp_u32((uint32_t) val);
-
- // Rebuild the header to update the payload length
- incr_header_len(CS_FIXED_LEN + CS_WRITEREG_LEN);
-
- return true;
-}
-
-/*!
- * \brief Adds a write register masked command to the packet.
- *
- * The \p reg_num is the register number for which the value \p val will be
- * written, masked by \p mask
- *
- * \returns true if the command was added to the packet, false otherwise.
- */
-bool usrp_inband_usb_packet::cs_write_reg_masked(long reg_num, long val, long mask)
-{
- if(!align32())
- return false;
-
- int p_len = payload_len();
-
- if((MAX_PAYLOAD - p_len) < (CS_WRITEREGMASKED_LEN + CS_FIXED_LEN))
- return false;
-
- uint32_t word0 = 0;
-
- // Build the first word which includes the register number
- word0 = (
- ((OP_WRITE_REG_MASKED & CS_OPCODE_MASK) << CS_OPCODE_SHIFT)
- | ((CS_WRITEREGMASKED_LEN & CS_LEN_MASK) << CS_LEN_SHIFT)
- | ((reg_num & CS_REGNUM_MASK) << CS_REGNUM_SHIFT)
- );
-
- uint32_t *payload = (uint32_t *) (d_payload + p_len);
- *payload = host_to_usrp_u32(word0);
-
- // Skip over the first word and write the register value
- payload += 1;
- *payload = host_to_usrp_u32((uint32_t) val);
-
- // Skip over the register value and write the mask
- payload += 1;
- *payload = host_to_usrp_u32((uint32_t) mask);
-
- // Rebuild the header to update the payload length
- incr_header_len(CS_FIXED_LEN + CS_WRITEREGMASKED_LEN);
-
- return true;
-}
-
-/*!
- * \brief Adds a read register message to the packet.
- *
- * The \p rid will be the associated RID returned with the response, and \p
- * reg_num is the register to be read.
- *
- * \returns true if the command was added to the packet, false otherwise.
- */
-bool usrp_inband_usb_packet::cs_read_reg(long rid, long reg_num)
-{
- if(!align32())
- return false;
-
- int p_len = payload_len();
-
- if((MAX_PAYLOAD - p_len) < (CS_READREG_LEN + CS_FIXED_LEN))
- return false;
-
- uint32_t read_reg = (
- ((OP_READ_REG & CS_OPCODE_MASK) << CS_OPCODE_SHIFT)
- | ((CS_READREG_LEN & CS_LEN_MASK) << CS_LEN_SHIFT)
- | ((rid & CS_RID_MASK) << CS_RID_SHIFT)
- | ((reg_num & CS_REGNUM_MASK) << CS_REGNUM_SHIFT)
-
- );
-
- uint32_t *payload = (uint32_t *) (d_payload + p_len);
- *payload = host_to_usrp_u32(read_reg);
-
- // Update payload length
- incr_header_len(CS_FIXED_LEN + CS_READREG_LEN);
-
- return true;
-}
-
-/*!
- * \brief Adds a read register reply response to the current packet. This is
- * used by the fake USRP code to generate fake register read responses for
- * testing.
- *
- * The \p rid is the associated RID to be included in the response, \p reg_num
- * is the register the read is coming from, and \p reg_val is the value of the
- * read.
- *
- * \returns true if the command was added to the packet, false otherwise.
- */
-bool usrp_inband_usb_packet::cs_read_reg_reply(long rid, long reg_num, long reg_val)
-{
- if(!align32())
- return false;
-
- int p_len = payload_len();
-
- if((MAX_PAYLOAD - p_len) < (CS_READREGREPLY_LEN + CS_FIXED_LEN))
- return false;
-
- uint32_t word0 = (
- ((OP_READ_REG_REPLY & CS_OPCODE_MASK) << CS_OPCODE_SHIFT)
- | ((CS_READREGREPLY_LEN & CS_LEN_MASK) << CS_LEN_SHIFT)
- | ((rid & CS_RID_MASK) << CS_RID_SHIFT)
- | ((reg_num & CS_REGNUM_MASK) << CS_REGNUM_SHIFT)
-
- );
-
- uint32_t *payload = (uint32_t *) (d_payload + p_len);
- *payload = host_to_usrp_u32(word0);
-
- // Hop to the next word and write the reg value
- payload += 1;
- *payload = host_to_usrp_u32((uint32_t) reg_val);
-
- // Update payload length
- incr_header_len(CS_FIXED_LEN + CS_READREGREPLY_LEN);
-
- return true;
-}
-
-/*!
- * \brief Adds a delay command to the current packet.
- *
- * The \p ticks parameter is the number of clock ticks the FPGA should delay
- * parsing for, which is added to the packet.
- *
- * \returns true if the command was added to the packet, false otherwise.
- */
-bool usrp_inband_usb_packet::cs_delay(long ticks)
-{
- if(!align32())
- return false;
-
- int p_len = payload_len();
-
- if((MAX_PAYLOAD - p_len) < (CS_DELAY_LEN + CS_FIXED_LEN))
- return false;
-
- uint32_t delay = (
- ((OP_DELAY & CS_OPCODE_MASK) << CS_OPCODE_SHIFT)
- | ((CS_DELAY_LEN & CS_LEN_MASK) << CS_LEN_SHIFT)
- | ((ticks & CS_DELAY_MASK) << CS_DELAY_SHIFT)
-
- );
-
- uint32_t *payload = (uint32_t *) (d_payload + p_len);
- *payload = host_to_usrp_u32(delay);
-
- // Update payload length
- incr_header_len(CS_FIXED_LEN + CS_DELAY_LEN);
-
- return true;
-}
-
-/*!
- * \brief
- *
- * \returns true if the command was added to the packet, false otherwise.
- */
-bool usrp_inband_usb_packet::cs_i2c_write(long i2c_addr, uint8_t *i2c_data, size_t data_len)
-{
- if(!align32())
- return false;
-
- int p_len = payload_len();
-
- int i2c_len = data_len + 2; // 2 bytes between mbz and addr
-
- if((MAX_PAYLOAD - p_len) < (i2c_len + CS_FIXED_LEN))
- return false;
-
- uint32_t word0 = 0;
-
- word0 = (
- ((OP_I2C_WRITE & CS_OPCODE_MASK) << CS_OPCODE_SHIFT)
- | ((i2c_len & CS_LEN_MASK) << CS_LEN_SHIFT)
- | ((i2c_addr & CS_I2CADDR_MASK) << CS_I2CADDR_SHIFT)
- );
-
- uint32_t *payload = (uint32_t *) (d_payload + p_len);
- *payload = host_to_usrp_u32(word0);
-
- // Jump over the first word and write the data
- // FIXME: Should the data be changed to usrp byte order?
- payload += 1;
- memcpy(payload, i2c_data, data_len);
-
- // Update payload length
- incr_header_len(CS_FIXED_LEN + i2c_len);
-
- return true;
-}
-
-/*!
- * \brief Adds an I2C read command to the current packet.
- *
- * The \p rid is the associated RID to return with the read response, \p
- * i2c_addr is the address to read from on the I2C bus, and \p n_bytes is the
- * number of bytes to be read from the bus.
- *
- * \returns true if the command was added to the packet, false otherwise.
- */
-bool usrp_inband_usb_packet::cs_i2c_read(long rid, long i2c_addr, long n_bytes)
-{
- if(!align32())
- return false;
-
- int p_len = payload_len();
-
- if((MAX_PAYLOAD - p_len) < (CS_I2CREAD_LEN + CS_FIXED_LEN))
- return false;
-
- uint32_t word0 = 0;
-
- word0 = (
- ((OP_I2C_READ & CS_OPCODE_MASK) << CS_OPCODE_SHIFT)
- | ((CS_I2CREAD_LEN & CS_LEN_MASK) << CS_LEN_SHIFT)
- | ((rid & CS_RID_MASK) << CS_RID_SHIFT)
- | ((i2c_addr & CS_I2CADDR_MASK) << CS_I2CADDR_SHIFT)
- );
-
- uint32_t *payload = (uint32_t *) (d_payload + p_len);
- *payload = host_to_usrp_u32(word0);
-
- // Jump a word and write the number of bytes to read
- payload += 1;
- uint32_t word1 =
- (n_bytes & CS_I2CREADBYTES_MASK) << CS_I2CREADBYTES_SHIFT;
- *payload = host_to_usrp_u32(word1);
-
- // Update payload length
- incr_header_len(CS_FIXED_LEN + CS_I2CREAD_LEN);
-
- return true;
-}
-
-/*!
- * \brief Adds an I2C read reply response to the current packet. This is used
- * by the fake USRP code to generate fake I2C responses.
- *
- * The \p rid is the RID to be associated with the response, \p i2c_addr is the
- * address on the I2C bus that the \p i2c_data of \p i2c_data_len was read from.
- *
- * \returns true if the command was added to the packet, false otherwise.
- */
-bool usrp_inband_usb_packet::cs_i2c_read_reply(long rid, long i2c_addr, uint8_t *i2c_data, long i2c_data_len)
-{
- if(!align32())
- return false;
-
- int p_len = payload_len();
-
- int i2c_len = i2c_data_len + 2;
-
- if((MAX_PAYLOAD - p_len) < (i2c_len + CS_FIXED_LEN))
- return false;
-
- uint32_t word0 = 0;
-
- word0 = (
- ((OP_I2C_READ_REPLY & CS_OPCODE_MASK) << CS_OPCODE_SHIFT)
- | ((i2c_len & CS_LEN_MASK) << CS_LEN_SHIFT)
- | ((rid & CS_RID_MASK) << CS_RID_SHIFT)
- | ((i2c_addr & CS_I2CADDR_MASK) << CS_I2CADDR_SHIFT)
- );
-
- uint32_t *payload = (uint32_t *) (d_payload + p_len);
- *payload = host_to_usrp_u32(word0);
-
- // Jump a word and write the actual data
- payload += 1;
- memcpy(payload, i2c_data, i2c_data_len);
-
- // Update payload length
- incr_header_len(CS_FIXED_LEN + i2c_len);
-
- return true;
-}
-
-/*!
- * \brief Adds a SPI write command to the current packet.
- *
- * \returns true if the command was added to the packet, false otherwise.
- */
-bool usrp_inband_usb_packet::cs_spi_write(long enables, long format, long opt_header_bytes, uint8_t *spi_data, long spi_data_len)
-{
- if(!align32())
- return false;
-
- int p_len = payload_len();
-
- int spi_len = spi_data_len + 6;
-
- if((MAX_PAYLOAD - p_len) < (spi_len + CS_FIXED_LEN))
- return false;
-
- uint32_t word = 0;
-
- // First word contains the opcode and length, then mbz
- word = (
- ((OP_SPI_WRITE & CS_OPCODE_MASK) << CS_OPCODE_SHIFT)
- | ((spi_len & CS_LEN_MASK) << CS_LEN_SHIFT)
- );
- uint32_t *payload = (uint32_t *) (d_payload + p_len);
- *payload = host_to_usrp_u32(word);
-
- payload += 1;
-
- // Second word contains the enables, format, and optional tx bytes
- word = 0;
- word = (
- ((enables & CS_SPIENABLES_MASK) << CS_SPIENABLES_SHIFT)
- | ((format & CS_SPIFORMAT_MASK) << CS_SPIFORMAT_SHIFT)
- | ((opt_header_bytes & CS_SPIOPT_MASK) << CS_SPIOPT_SHIFT)
- );
- payload = (uint32_t *) (d_payload + p_len);
- *payload = host_to_usrp_u32(word);
-
- payload += 1;
- memcpy(payload, spi_data, spi_data_len);
-
- // Update payload length
- incr_header_len(CS_FIXED_LEN + spi_len);
-
- return true;
-}
-
-/*!
- * \brief Adds a SPI bus read command to the packet.
- *
- * \returns true if the command was added to the packet, false otherwise.
- */
-bool usrp_inband_usb_packet::cs_spi_read(long rid, long enables, long format, long opt_header_bytes, long n_bytes)
-{
- if(!align32())
- return false;
-
- int p_len = payload_len();
-
- if((MAX_PAYLOAD - p_len) < (CS_SPIREAD_LEN + CS_FIXED_LEN))
- return false;
-
- uint32_t word = 0;
-
- // First word contains the opcode, length, and RID
- word = (
- ((OP_SPI_READ & CS_OPCODE_MASK) << CS_OPCODE_SHIFT)
- | ((CS_SPIREAD_LEN & CS_LEN_MASK) << CS_LEN_SHIFT)
- | ((rid & CS_RID_MASK) << CS_RID_SHIFT)
- );
- uint32_t *payload = (uint32_t *) (d_payload + p_len);
- *payload = host_to_usrp_u32(word);
-
- payload += 1;
-
- // Second word contains the enables, format, and optional tx bytes
- word = 0;
- word = (
- ((enables & CS_SPIENABLES_MASK) << CS_SPIENABLES_SHIFT)
- | ((format & CS_SPIFORMAT_MASK) << CS_SPIFORMAT_SHIFT)
- | ((opt_header_bytes & CS_SPIOPT_MASK) << CS_SPIOPT_SHIFT)
- );
- payload = (uint32_t *) (d_payload + p_len);
- *payload = host_to_usrp_u32(word);
-
- payload += 1;
-
- // The third word contains the number of bytes
- word = 0;
- word = (
- ((n_bytes & CS_SPINBYTES_MASK) << CS_SPINBYTES_SHIFT)
- );
- payload = (uint32_t *) (d_payload + p_len);
- *payload = host_to_usrp_u32(word);
-
- // Update payload length
- incr_header_len(CS_FIXED_LEN + CS_SPIREAD_LEN);
-
- return true;
-}
-
-/*!
- * \brief Adds an SPI read reply to the current packet. This is used by the
- * fake USRP code to generate fake responses for SPI reads.
- *
- * \returns true if the command was added to the packet, false otherwise.
- */
-bool usrp_inband_usb_packet::cs_spi_read_reply(long rid, uint8_t *spi_data, long spi_data_len)
-{
- if(!align32())
- return false;
-
- int p_len = payload_len();
-
- int spi_len = spi_data_len + 2;
-
- if((MAX_PAYLOAD - p_len) < (spi_len + CS_FIXED_LEN))
- return false;
-
- uint32_t word = 0;
-
- // First word contains the opcode, length, and RID
- word = (
- ((OP_SPI_READ_REPLY & CS_OPCODE_MASK) << CS_OPCODE_SHIFT)
- | ((spi_len & CS_LEN_MASK) << CS_LEN_SHIFT)
- | ((rid & CS_RID_MASK) << CS_RID_SHIFT)
- );
- uint32_t *payload = (uint32_t *) (d_payload + p_len);
- *payload = host_to_usrp_u32(word);
-
- // Jump a word and write the actual data
- payload += 1;
- memcpy(payload, spi_data, spi_data_len);
-
- // Update payload length
- incr_header_len(CS_FIXED_LEN + spi_len);
-
- return true;
-}
-
-/*!
- * \brief Since all control packets contain subpackets which have the length of
- * the subpacket at a uniform location in the subpacket, this will return the
- * subpacket length given a byte offset of the start of the subpacket from the beginning of the packet.
- *
- * \returns the length of the subpacket
- */
-int usrp_inband_usb_packet::cs_len(int payload_offset) {
- uint32_t subpkt = usrp_to_host_u32(*((uint32_t *)(d_payload + payload_offset)));
- return (subpkt >> CS_LEN_SHIFT) & CS_LEN_MASK;
-}
-
-/*!
- * \brief The following method takes an offset within the packet payload to
- * extract a control/status subpacket and constructs a pmt response which
- * includes the proper signal and arguments specified by usrp-low-level-cs. The
- * USRP server could therefore use this to read subpackets and pass them
- * responses back up to the application. It's arguable that only reply packets
- * should be parsed here, however we parse others for use in debugging or
- * failure reporting on the transmit side of packets.
- */
-pmt_t usrp_inband_usb_packet::read_subpacket(int payload_offset) {
-
- uint32_t subpkt = usrp_to_host_u32(*((uint32_t *)(d_payload + payload_offset)));
- uint32_t opcode = (subpkt >> CS_OPCODE_SHIFT) & CS_OPCODE_MASK;
- uint32_t len = (subpkt >> CS_LEN_SHIFT) & CS_LEN_MASK;
-
- switch(opcode) {
-
- case OP_PING_FIXED_REPLY:
- {
- pmt_t rid = pmt_from_long((subpkt >> CS_RID_SHIFT) & CS_RID_MASK);
- pmt_t pingval = pmt_from_long((subpkt >> CS_PINGVAL_SHIFT) & CS_PINGVAL_MASK);
- return pmt_list3(s_op_ping_fixed_reply, rid, pingval);
- }
-
- case OP_READ_REG_REPLY:
- {
- pmt_t rid = pmt_from_long((subpkt >> CS_RID_SHIFT) & CS_RID_MASK);
- pmt_t reg_num = pmt_from_long((subpkt >> CS_REGNUM_SHIFT) & CS_REGNUM_MASK);
-
- // To get the register value we just read the next 32 bits
- uint32_t val = usrp_to_host_u32(*((uint32_t *)(d_payload + payload_offset + 4)));
- pmt_t reg_val = pmt_from_long(val);
-
- return pmt_list4(s_op_read_reg_reply, rid, reg_num, reg_val);
- }
-
- case OP_I2C_READ_REPLY:
- {
- pmt_t rid = pmt_from_long((subpkt >> CS_RID_SHIFT) & CS_RID_MASK);
- pmt_t i2c_addr = pmt_from_long((subpkt >> CS_I2CADDR_SHIFT) & CS_I2CADDR_MASK);
-
- // Make a u8 vector to dump the data from the packet into
- size_t i2c_data_len;
- pmt_t i2c_data = pmt_make_u8vector(len - 2, 0); // skip rid+mbz+addr = 2 bytes
- uint8_t *w_data =
- (uint8_t *) pmt_u8vector_writable_elements(i2c_data, i2c_data_len);
-
- memcpy(w_data, d_payload + payload_offset + 4, i2c_data_len); // skip first word
-
- return pmt_list4(s_op_i2c_read_reply, rid, i2c_addr, i2c_data);
- }
-
- case OP_SPI_READ_REPLY:
- {
- pmt_t rid = pmt_from_long((subpkt >> CS_RID_SHIFT) & CS_RID_MASK);
-
- // Make a u8 vector to dump the data from the packet into
- size_t spi_data_len;
- pmt_t spi_data = pmt_make_u8vector(len - 2, 0); // skip rid+mbz+addr = 2 bytes
- uint8_t *w_data =
- (uint8_t *) pmt_u8vector_writable_elements(spi_data, spi_data_len);
-
- memcpy(w_data, d_payload + payload_offset + 4, spi_data_len); // skip first word
-
- return pmt_list3(s_op_spi_read_reply, rid, spi_data);
- }
-
- case OP_PING_FIXED:
- {
- pmt_t rid = pmt_from_long((subpkt >> CS_RID_SHIFT) & CS_RID_MASK);
- pmt_t pingval = pmt_from_long((subpkt >> CS_PINGVAL_SHIFT) & CS_PINGVAL_MASK);
- return pmt_list3(s_op_ping_fixed, rid, pingval);
- }
-
- case OP_WRITE_REG:
- {
- pmt_t reg_num = pmt_from_long((subpkt >> CS_REGNUM_SHIFT) & CS_REGNUM_MASK);
-
- // To get the register value we just read the next 32 bits
- uint32_t val = usrp_to_host_u32(*((uint32_t *)(d_payload + payload_offset + 4)));
- pmt_t reg_val = pmt_from_long(val);
-
- return pmt_list3(s_op_write_reg, reg_num, reg_val);
- }
-
- case OP_WRITE_REG_MASKED:
- {
- pmt_t reg_num = pmt_from_long((subpkt >> CS_REGNUM_SHIFT) & CS_REGNUM_MASK);
-
- // To get the register value we just read the next 32 bits
- uint32_t val = usrp_to_host_u32(*((uint32_t *)(d_payload + payload_offset + 4)));
- pmt_t reg_val = pmt_from_long(val);
-
- // The mask is the next 32 bits
- uint32_t mask = usrp_to_host_u32(*((uint32_t *)(d_payload + payload_offset + 8)));
- pmt_t reg_mask = pmt_from_long(mask);
-
- return pmt_list4(s_op_write_reg_masked, reg_num, reg_val, reg_mask);
- }
-
- case OP_READ_REG:
- {
- pmt_t rid = pmt_from_long((subpkt >> CS_RID_SHIFT) & CS_RID_MASK);
- pmt_t reg_num = pmt_from_long((subpkt >> CS_REGNUM_SHIFT) & CS_REGNUM_MASK);
-
- return pmt_list3(s_op_read_reg, rid, reg_num);
- }
-
- case OP_I2C_WRITE:
- {
- pmt_t i2c_addr = pmt_from_long((subpkt >> CS_I2CADDR_SHIFT) & CS_I2CADDR_MASK);
-
- // The length includes an extra 2 bytes for storing the mbz and addr
- pmt_t i2c_data = pmt_make_u8vector(len-2, 0);
-
- // Get a writable address to copy the data from the packet
- size_t ignore;
- uint8_t *w_data = (uint8_t *) pmt_u8vector_writable_elements(i2c_data, ignore);
- memcpy(w_data, d_payload + payload_offset + 4, len-2);
-
-
- return pmt_list3(s_op_i2c_write, i2c_addr, i2c_data);
- }
-
- case OP_I2C_READ:
- {
- pmt_t rid = pmt_from_long((subpkt >> CS_RID_SHIFT) & CS_RID_MASK);
- pmt_t i2c_addr = pmt_from_long((subpkt >> CS_I2CADDR_SHIFT) & CS_I2CADDR_MASK);
-
- // The number of bytes is in the next word
- uint32_t bytes = usrp_to_host_u32(*((uint32_t *)(d_payload + payload_offset + 4)));
- bytes = (bytes >> CS_I2CREADBYTES_SHIFT) & CS_I2CREADBYTES_MASK;
- pmt_t i2c_bytes = pmt_from_long(bytes);
-
- return pmt_list4(s_op_i2c_read, rid, i2c_addr, i2c_bytes);
- }
-
- case OP_SPI_WRITE:
- {
- // Nothing interesting in the first word, skip to the next
- uint32_t word = usrp_to_host_u32(*((uint32_t *)(d_payload + payload_offset + 4)));
- pmt_t enables = pmt_from_long((word >> CS_SPIENABLES_SHIFT) & CS_SPIENABLES_MASK);
- pmt_t format = pmt_from_long((word >> CS_SPIFORMAT_SHIFT) & CS_SPIFORMAT_MASK);
- pmt_t opt = pmt_from_long((word >> CS_SPIOPT_SHIFT) & CS_SPIOPT_MASK);
-
- // From the next word and on is data
- size_t spi_data_len;
- pmt_t spi_data = pmt_make_u8vector(len - 6, 0); // skip rid+mbz+addr = 2 bytes
- uint8_t *w_data =
- (uint8_t *) pmt_u8vector_writable_elements(spi_data, spi_data_len);
-
- memcpy(w_data, d_payload + payload_offset + 8, spi_data_len); // skip first 2 words
-
- return pmt_list5(s_op_spi_write, enables, format, opt, spi_data);
- }
-
- case OP_SPI_READ:
- {
- // Read the RID from the first word, the rest is mbz
- pmt_t rid = pmt_from_long((subpkt >> CS_RID_SHIFT) & CS_RID_MASK);
-
- // Continue at the next word...
- uint32_t word = usrp_to_host_u32(*((uint32_t *)(d_payload + payload_offset + 4)));
- pmt_t enables = pmt_from_long((word >> CS_SPIENABLES_SHIFT) & CS_SPIENABLES_MASK);
- pmt_t format = pmt_from_long((word >> CS_SPIFORMAT_SHIFT) & CS_SPIFORMAT_MASK);
- pmt_t opt = pmt_from_long((word >> CS_SPIOPT_SHIFT) & CS_SPIOPT_MASK);
-
- // The number of bytes is the only thing to read in the next word
- word = usrp_to_host_u32(*((uint32_t *)(d_payload + payload_offset + 8)));
- pmt_t n_bytes = pmt_from_long((word >> CS_SPINBYTES_SHIFT) & CS_SPINBYTES_MASK);
-
- return pmt_list6(s_op_spi_read, rid, enables, format, opt, n_bytes);
- }
-
- case OP_DELAY:
- {
- pmt_t ticks = pmt_from_long((subpkt >> CS_DELAY_SHIFT) & CS_DELAY_MASK);
-
- return pmt_list2(s_op_delay, ticks);
- }
-
- default:
- return PMT_NIL;
-
- }
-}
-
projects / debian / gnuradio / blobdiff