diff options
Diffstat (limited to 'usrp/host')
| -rw-r--r-- | usrp/host/lib/fusb_sysconfig_libusb1.cc | 9 | ||||
| -rw-r--r-- | usrp/host/lib/usrp_basic_libusb1.cc | 152 | ||||
| -rw-r--r-- | usrp/host/lib/usrp_prims_libusb1.cc | 510 |
3 files changed, 670 insertions, 1 deletions
diff --git a/usrp/host/lib/fusb_sysconfig_libusb1.cc b/usrp/host/lib/fusb_sysconfig_libusb1.cc index a005f540d..aafbb81cb 100644 --- a/usrp/host/lib/fusb_sysconfig_libusb1.cc +++ b/usrp/host/lib/fusb_sysconfig_libusb1.cc @@ -30,7 +30,14 @@ static const int FUSB_BUFFER_SIZE = 1 * (1L << 20); // 1 MB struct libusb_context; fusb_devhandle * -fusb_sysconfig::make_devhandle (libusb_device_handle *udh, libusb_context *ctx) +fusb_sysconfig::make_devhandle (libusb_device_handle *udh) +{ + return new fusb_devhandle_libusb1 (udh, NULL); +} + +fusb_devhandle * +fusb_sysconfig::make_devhandle (libusb_device_handle *udh, + libusb_context *ctx) { return new fusb_devhandle_libusb1 (udh, ctx); } diff --git a/usrp/host/lib/usrp_basic_libusb1.cc b/usrp/host/lib/usrp_basic_libusb1.cc new file mode 100644 index 000000000..6c22b5c6f --- /dev/null +++ b/usrp/host/lib/usrp_basic_libusb1.cc @@ -0,0 +1,152 @@ +/* -*- c++ -*- */ +/* + * Copyright 2003,2004,2008,2009 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 GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <usrp/usrp_basic.h> +#include "usrp/usrp_prims.h" +#include "usrp_interfaces.h" +#include "fpga_regs_common.h" +#include "fpga_regs_standard.h" +#include "fusb.h" +#include "db_boards.h" +#include <libusb-1.0/libusb.h> +#include <stdexcept> +#include <assert.h> +#include <math.h> +#include <ad9862.h> +#include <string.h> +#include <cstdio> + + +using namespace ad9862; + +#define NELEM(x) (sizeof (x) / sizeof (x[0])) + +// These set the buffer size used for each end point using the fast +// usb interface. The kernel ends up locking down this much memory. + +static const int FUSB_BUFFER_SIZE = fusb_sysconfig::default_buffer_size(); +static const int FUSB_BLOCK_SIZE = fusb_sysconfig::max_block_size(); +static const int FUSB_NBLOCKS = FUSB_BUFFER_SIZE / FUSB_BLOCK_SIZE; + + +static const double POLLING_INTERVAL = 0.1; // seconds + + +////////////////////////////////////////////////////////////////// +// +// usrp_basic +// +//////////////////////////////////////////////////////////////// + + +// Given: +// CLKIN = 64 MHz +// CLKSEL pin = high +// +// These settings give us: +// CLKOUT1 = CLKIN = 64 MHz +// CLKOUT2 = CLKIN = 64 MHz +// ADC is clocked at 64 MHz +// DAC is clocked at 128 MHz + +static unsigned char common_regs[] = { + REG_GENERAL, 0, + REG_DLL, (DLL_DISABLE_INTERNAL_XTAL_OSC + | DLL_MULT_2X + | DLL_FAST), + REG_CLKOUT, CLKOUT2_EQ_DLL_OVER_2, + REG_AUX_ADC_CLK, AUX_ADC_CLK_CLK_OVER_4 +}; + +usrp_basic::usrp_basic (int which_board, + struct libusb_device_handle * + open_interface (struct libusb_device *dev), + const std::string fpga_filename, + const std::string firmware_filename) + : d_udh (0), d_ctx (0), + d_usb_data_rate (16000000), // SWAG, see below + d_bytes_per_poll ((int) (POLLING_INTERVAL * d_usb_data_rate)), + d_verbose (false), d_fpga_master_clock_freq(64000000), d_db(2) +{ + /* + * SWAG: Scientific Wild Ass Guess. + * + * d_usb_data_rate is used only to determine how often to poll for over- and under-runs. + * We defualt it to 1/2 of our best case. Classes derived from usrp_basic (e.g., + * usrp_standard_tx and usrp_standard_rx) call set_usb_data_rate() to tell us the + * actual rate. This doesn't change our throughput, that's determined by the signal + * processing code in the FPGA (which we know nothing about), and the system limits + * determined by libusb, fusb_*, and the underlying drivers. + */ + memset (d_fpga_shadows, 0, sizeof (d_fpga_shadows)); + + d_ctx = usrp_one_time_init(true); + + if (!usrp_load_standard_bits (which_board, false, fpga_filename, firmware_filename, d_ctx)) + throw std::runtime_error ("usrp_basic/usrp_load_standard_bits"); + + struct libusb_device *dev = usrp_find_device (which_board, false, d_ctx); + if (dev == 0){ + fprintf (stderr, "usrp_basic: can't find usrp[%d]\n", which_board); + throw std::runtime_error ("usrp_basic/usrp_find_device"); + } + + if (!(usrp_usrp_p(dev) && usrp_hw_rev(dev) >= 1)){ + fprintf (stderr, "usrp_basic: sorry, this code only works with USRP revs >= 1\n"); + throw std::runtime_error ("usrp_basic/bad_rev"); + } + + if ((d_udh = open_interface (dev)) == 0) + throw std::runtime_error ("usrp_basic/open_interface"); + + // initialize registers that are common to rx and tx + + if (!usrp_9862_write_many_all (d_udh, common_regs, sizeof (common_regs))){ + fprintf (stderr, "usrp_basic: failed to init common AD9862 regs\n"); + throw std::runtime_error ("usrp_basic/init_9862"); + } + + _write_fpga_reg (FR_MODE, 0); // ensure we're in normal mode + _write_fpga_reg (FR_DEBUG_EN, 0); // disable debug outputs + +} + +usrp_basic::~usrp_basic () +{ + // shutdown_daughterboards(); // call from ~usrp_basic_{tx,rx} + + d_db.resize(0); // forget db shared ptrs + + if (d_udh) + libusb_close (d_udh); + + // Each object should be running in it's own context. If running in default + // (NULL) context then something went wrong. + + assert (d_ctx != NULL); + libusb_exit (d_ctx); +} + diff --git a/usrp/host/lib/usrp_prims_libusb1.cc b/usrp/host/lib/usrp_prims_libusb1.cc new file mode 100644 index 000000000..3f0763bf9 --- /dev/null +++ b/usrp/host/lib/usrp_prims_libusb1.cc @@ -0,0 +1,510 @@ +/* -*- c++ -*- */ +/* + * Copyright 2003,2004,2006,2009 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 GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "usrp/usrp_prims.h" +#include "usrp_commands.h" +#include "usrp_ids.h" +#include "usrp_i2c_addr.h" +#include "fpga_regs_common.h" +#include "fpga_regs_standard.h" +#include <libusb-1.0/libusb.h> +#include <errno.h> +#include <stdio.h> +#include <unistd.h> +#include <stdlib.h> +#include <string.h> +#include <ctype.h> +#include <time.h> // FIXME should check with autoconf (nanosleep) +#include <algorithm> +#include <ad9862.h> +#include <assert.h> + +extern "C" { +#include "md5.h" +}; + +#define VERBOSE 0 + +using namespace ad9862; + +bool our_nanosleep (const struct timespec *delay); +const char *get_proto_filename (const std::string user_filename, + const char *env_var, + const char *def); +char *find_file (const char *filename, int hw_rev); +void load_status_msg (usrp_load_status_t s, const char *type, + const char *filename); +bool usrp1_fpga_write (libusb_device_handle *udh, int regno, int value); +bool usrp1_fpga_read (libusb_device_handle *udh, int regno, int *value); +bool usrp_set_switch (libusb_device_handle *udh, int cmd_byte, bool on); + +bool usrp_set_fpga_reset (struct usb_dev_handle *udh, bool on); +bool usrp_set_fpga_tx_enable (struct usb_dev_handle *udh, bool on); +bool usrp_set_fpga_rx_enable (struct usb_dev_handle *udh, bool on); +bool usrp_set_fpga_tx_reset (struct usb_dev_handle *udh, bool on); +bool usrp_set_fpga_rx_reset (struct usb_dev_handle *udh, bool on); + + +static const int FIRMWARE_HASH_SLOT = 0; +static const int FPGA_HASH_SLOT = 1; + +static const int hash_slot_addr[2] = { + USRP_HASH_SLOT_0_ADDR, + USRP_HASH_SLOT_1_ADDR +}; + +static const char *default_firmware_filename = "std.ihx"; +static const char *default_fpga_filename = "std_2rxhb_2tx.rbf"; + +#include "std_paths.h" +#include <stdio.h> + +libusb_context * +usrp_one_time_init (bool new_context) +{ + + static bool first = true; + libusb_context *ctx = NULL; + int ret; + + // On first call create default context in addition to any new requested + // context. The default context is probably useless in this form, but keep + // it for now due to compatibility reasons. + + if (first) { + first = false; + if ((ret = libusb_init (NULL)) < 0) + fprintf (stderr, "usrp: libusb_init failed %i\n", ret); + } + + if (new_context) { + if ((ret = libusb_init (&ctx)) < 0) + fprintf (stderr, "usrp: libusb_init failed %i\n", ret); + } + + return ctx; +} + +void +usrp_rescan () +{ + // nop +} + +// ---------------------------------------------------------------- + +/* + * q must be a real USRP, not an FX2. Return its hardware rev number. + */ +int +usrp_hw_rev (struct libusb_device *q) +{ + struct libusb_device_descriptor desc; + if (libusb_get_device_descriptor(q, &desc) < 0) + fprintf (stderr, "usrp: libusb_get_device_descriptor failed\n"); + + return desc.bcdDevice & 0x00FF; +} + +/* + * q must be a real USRP, not an FX2. Return true if it's configured. + */ +static bool +_usrp_configured_p (struct libusb_device *q) +{ + struct libusb_device_descriptor desc; + if (libusb_get_device_descriptor(q, &desc) < 0) + fprintf (stderr, "usrp: libusb_get_device_descriptor failed\n"); + + return (desc.bcdDevice & 0xFF00) != 0; +} + +bool +usrp_usrp_p (struct libusb_device *q) +{ + struct libusb_device_descriptor desc; + if (libusb_get_device_descriptor(q, &desc) < 0) + fprintf (stderr, "usrp: libusb_get_device_descriptor failed\n"); + + return (desc.idVendor == USB_VID_FSF + && desc.idProduct == USB_PID_FSF_USRP); +} + +bool +usrp_fx2_p (struct libusb_device *q) +{ + struct libusb_device_descriptor desc; + if (libusb_get_device_descriptor(q, &desc) < 0) + fprintf (stderr, "usrp: libusb_get_device_descriptor failed\n"); + + return (desc.idVendor == USB_VID_CYPRESS + && desc.idProduct == USB_PID_CYPRESS_FX2); +} + + +// ---------------------------------------------------------------- + +struct libusb_device * +usrp_find_device (int nth, bool fx2_ok_p, libusb_context *ctx) +{ + libusb_device **list; + + struct libusb_device *q; + int n_found = 0; + +//usrp_one_time_init (false); + assert (ctx != NULL); + + size_t cnt = libusb_get_device_list(ctx, &list); + size_t i = 0; + + if (cnt < 0) + fprintf(stderr, "usrp: libusb_get_device_list failed %d\n", cnt); + + for (i = 0; i < cnt; i++) { + q = list[i]; + if (usrp_usrp_p (q) || (fx2_ok_p && usrp_fx2_p (q))) { + if (n_found == nth) // return this one + return q; + n_found++; // keep looking + } + } + +/* + * The list needs to be freed. Right now just release it if nothing is found. + */ + + libusb_free_device_list(list, 1); + + return 0; // not found +} + +struct libusb_device_handle * +usrp_open_interface (libusb_device *dev, int interface, int altinterface) +{ + struct libusb_device_handle *udh; + int ret; + + if (libusb_open (dev, &udh) < 0) + return 0; + + if (dev != libusb_get_device (udh)){ + fprintf (stderr, "%s:%d: internal error!\n", __FILE__, __LINE__); + abort (); + } + + if ((ret = libusb_claim_interface (udh, interface)) < 0) { + fprintf (stderr, "%s:usb_claim_interface: failed interface %d\n", __FUNCTION__,interface); + fprintf (stderr, "%d\n", ret); + libusb_close (udh); + return 0; + } + + if ((ret = libusb_set_interface_alt_setting (udh, interface, + altinterface)) < 0) { + fprintf (stderr, "%s:usb_set_alt_interface: failed\n", __FUNCTION__); + fprintf (stderr, "%d\n", ret); + libusb_release_interface (udh, interface); + libusb_close (udh); + return 0; + } + + return udh; +} + +bool +usrp_close_interface (libusb_device_handle *udh) +{ + // returns void + libusb_close(udh); + return 0; +} + +// ---------------------------------------------------------------- +// write internal ram using Cypress vendor extension + +bool +write_internal_ram (struct libusb_device_handle *udh, unsigned char *buf, + int start_addr, size_t len) +{ + int addr; + int n; + int a; + int quanta = MAX_EP0_PKTSIZE; + + for (addr = start_addr; addr < start_addr + (int) len; addr += quanta){ + n = len + start_addr - addr; + if (n > quanta) + n = quanta; + + a = libusb_control_transfer (udh, 0x40, 0xA0, + addr, 0, (unsigned char *)(buf + (addr - start_addr)), n, 1000); + + if (a < 0){ + fprintf(stderr,"write_internal_ram failed: %u\n", a); + return false; + } + } + return true; +} + +// ---------------------------------------------------------------- +// write vendor extension command to USRP + +int +write_cmd (struct libusb_device_handle *udh, + int request, int value, int index, + unsigned char *bytes, int len) +{ + int requesttype = (request & 0x80) ? VRT_VENDOR_IN : VRT_VENDOR_OUT; + + int r = libusb_control_transfer(udh, requesttype, request, value, index, + (unsigned char *) bytes, len, 1000); + + if (r < 0){ + // we get EPIPE if the firmware stalls the endpoint. + if (r != LIBUSB_ERROR_PIPE) { + fprintf (stderr, "libusb_control_transfer failed: %i\n", r); + } + } + + return r; +} + +bool +usrp_set_hash (struct libusb_device_handle *udh, int which, + const unsigned char hash[USRP_HASH_SIZE]) +{ + which &= 1; + + // we use the Cypress firmware down load command to jam it in. + int r = libusb_control_transfer (udh, 0x40, 0xa0, hash_slot_addr[which], 0, + (unsigned char *) hash, USRP_HASH_SIZE, 1000); + return r == USRP_HASH_SIZE; +} + +bool +usrp_get_hash (struct libusb_device_handle *udh, int which, + unsigned char hash[USRP_HASH_SIZE]) +{ + which &= 1; + + // we use the Cypress firmware upload command to fetch it. + int r = libusb_control_transfer (udh, 0xc0, 0xa0, hash_slot_addr[which], 0, + (unsigned char *) hash, USRP_HASH_SIZE, 1000); + return r == USRP_HASH_SIZE; +} + +bool +usrp_write_fpga_reg (struct libusb_device_handle *udh, int reg, int value) +{ + switch (usrp_hw_rev (libusb_get_device (udh))){ + case 0: // not supported ;) + abort(); + + default: + return usrp1_fpga_write (udh, reg, value); + } +} + +bool +usrp_read_fpga_reg (struct libusb_device_handle *udh, int reg, int *value) +{ + switch (usrp_hw_rev (libusb_get_device (udh))){ + case 0: // not supported ;) + abort(); + + default: + return usrp1_fpga_read (udh, reg, value); + } +} + + +static libusb_device_handle * +open_nth_cmd_interface (int nth, libusb_context *ctx) +{ + + struct libusb_device *udev = usrp_find_device (nth, false, ctx); + if (udev == 0){ + fprintf (stderr, "usrp: failed to find usrp[%d]\n", nth); + return 0; + } + + struct libusb_device_handle *udh; + + udh = usrp_open_cmd_interface (udev); + if (udh == 0){ + // FIXME this could be because somebody else has it open. + // We should delay and retry... + fprintf (stderr, "open_nth_cmd_interface: open_cmd_interface failed\n"); + return 0; + } + + return udh; +} + +usrp_load_status_t +usrp_load_firmware_nth (int nth, const char *filename, bool force, libusb_context *ctx) +{ + struct libusb_device_handle *udh = open_nth_cmd_interface (nth, ctx); + if (udh == 0) + return ULS_ERROR; + + usrp_load_status_t s = usrp_load_firmware (udh, filename, force); + usrp_close_interface (udh); + + switch (s){ + + case ULS_ALREADY_LOADED: // nothing changed... + return ULS_ALREADY_LOADED; + break; + + case ULS_OK: + // we loaded firmware successfully. + + // It's highly likely that the board will renumerate (simulate a + // disconnect/reconnect sequence), invalidating our current + // handle. + + // FIXME. Turn this into a loop that rescans until we refind ourselves + + struct timespec t; // delay for 1 second + t.tv_sec = 2; + t.tv_nsec = 0; + our_nanosleep (&t); + + return ULS_OK; + + default: + case ULS_ERROR: // some kind of problem + return ULS_ERROR; + } +} + +bool +usrp_load_standard_bits (int nth, bool force, + const std::string fpga_filename, + const std::string firmware_filename, + libusb_context *ctx) +{ + usrp_load_status_t s; + const char *filename; + const char *proto_filename; + int hw_rev; + + assert (ctx != NULL); + + // first, figure out what hardware rev we're dealing with + { + struct libusb_device *udev = usrp_find_device (nth, false, ctx); + if (udev == 0){ + fprintf (stderr, "usrp: failed to find usrp[%d]\n", nth); + return false; + } + hw_rev = usrp_hw_rev (udev); + } + + // start by loading the firmware + + proto_filename = get_proto_filename(firmware_filename, "USRP_FIRMWARE", + default_firmware_filename); + filename = find_file(proto_filename, hw_rev); + if (filename == 0){ + fprintf (stderr, "Can't find firmware: %s\n", proto_filename); + return false; + } + s = usrp_load_firmware_nth (nth, filename, force, ctx); + load_status_msg (s, "firmware", filename); + + if (s == ULS_ERROR) + return false; + + // if we actually loaded firmware, we must reload fpga ... + if (s == ULS_OK) + force = true; + + // now move on to the fpga configuration bitstream + + proto_filename = get_proto_filename(fpga_filename, "USRP_FPGA", + default_fpga_filename); + filename = find_file (proto_filename, hw_rev); + if (filename == 0){ + fprintf (stderr, "Can't find fpga bitstream: %s\n", proto_filename); + return false; + } + struct libusb_device_handle *udh = open_nth_cmd_interface (nth, ctx); + if (udh == 0) + return false; + + s = usrp_load_fpga (udh, filename, force); + usrp_close_interface (udh); + load_status_msg (s, "fpga bitstream", filename); + + if (s == ULS_ERROR) + return false; + + return true; +} + +void +power_down_9862s (struct libusb_device_handle *udh) +{ + static const unsigned char regs[] = { + REG_RX_PWR_DN, 0x01, // everything + REG_TX_PWR_DN, 0x0f, // pwr dn digital and analog_both + REG_TX_MODULATOR, 0x00 // coarse & fine modulators disabled + }; + + switch (usrp_hw_rev (libusb_get_device (udh))){ + case 0: + break; + + default: + usrp_9862_write_many_all (udh, regs, sizeof (regs)); + break; + } +} + + +// ---------------------------------------------------------------- + +std::string +usrp_serial_number(struct libusb_device_handle *udh) +{ + struct libusb_device_descriptor desc; + if (libusb_get_device_descriptor(libusb_get_device(udh), &desc) < 0) + fprintf (stderr, "usrp: libusb_get_device_descriptor failed\n"); + + unsigned char iserial = desc.iSerialNumber; + if (iserial == 0) + return ""; + + unsigned char buf[1024]; + if (libusb_get_string_descriptor_ascii(udh, iserial, buf, sizeof(buf)) < 0) + return ""; + + return (char*) buf; +} |