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Diffstat (limited to 'firmware/fx2/src/usrp1/usrp_main.c')
-rw-r--r--firmware/fx2/src/usrp1/usrp_main.c388
1 files changed, 0 insertions, 388 deletions
diff --git a/firmware/fx2/src/usrp1/usrp_main.c b/firmware/fx2/src/usrp1/usrp_main.c
deleted file mode 100644
index b8c2e98ec..000000000
--- a/firmware/fx2/src/usrp1/usrp_main.c
+++ /dev/null
@@ -1,388 +0,0 @@
-/*
- * USRP - Universal Software Radio Peripheral
- *
- * Copyright (C) 2003,2004 Free Software Foundation, Inc.
- *
- * 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, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Boston, MA 02110-1301 USA
- */
-
-#include "usrp_common.h"
-#include "usrp_commands.h"
-#include "fpga.h"
-#include "usrp_gpif_inline.h"
-#include "timer.h"
-#include "i2c.h"
-#include "isr.h"
-#include "usb_common.h"
-#include "fx2utils.h"
-#include "usrp_globals.h"
-#include "usrp_i2c_addr.h"
-#include <string.h>
-#include "spi.h"
-#include "eeprom_io.h"
-#include "usb_descriptors.h"
-
-/*
- * offsets into boot eeprom for configuration values
- */
-#define HW_REV_OFFSET 5
-#define SERIAL_NO_OFFSET 248
-#define SERIAL_NO_LEN 8
-
-
-#define bRequestType SETUPDAT[0]
-#define bRequest SETUPDAT[1]
-#define wValueL SETUPDAT[2]
-#define wValueH SETUPDAT[3]
-#define wIndexL SETUPDAT[4]
-#define wIndexH SETUPDAT[5]
-#define wLengthL SETUPDAT[6]
-#define wLengthH SETUPDAT[7]
-
-
-unsigned char g_tx_enable = 0;
-unsigned char g_rx_enable = 0;
-unsigned char g_rx_overrun = 0;
-unsigned char g_tx_underrun = 0;
-
-/*
- * the host side fpga loader code pushes an MD5 hash of the bitstream
- * into hash1.
- */
-#define USRP_HASH_SIZE 16
-xdata at USRP_HASH_SLOT_1_ADDR unsigned char hash1[USRP_HASH_SIZE];
-
-static void
-get_ep0_data (void)
-{
- EP0BCL = 0; // arm EP0 for OUT xfer. This sets the busy bit
-
- while (EP0CS & bmEPBUSY) // wait for busy to clear
- ;
-}
-
-/*
- * Handle our "Vendor Extension" commands on endpoint 0.
- * If we handle this one, return non-zero.
- */
-unsigned char
-app_vendor_cmd (void)
-{
- if (bRequestType == VRT_VENDOR_IN){
-
- /////////////////////////////////
- // handle the IN requests
- /////////////////////////////////
-
- switch (bRequest){
-
- case VRQ_GET_STATUS:
- switch (wIndexL){
-
- case GS_TX_UNDERRUN:
- EP0BUF[0] = g_tx_underrun;
- g_tx_underrun = 0;
- EP0BCH = 0;
- EP0BCL = 1;
- break;
-
- case GS_RX_OVERRUN:
- EP0BUF[0] = g_rx_overrun;
- g_rx_overrun = 0;
- EP0BCH = 0;
- EP0BCL = 1;
- break;
-
- default:
- return 0;
- }
- break;
-
- case VRQ_I2C_READ:
- if (!i2c_read (wValueL, EP0BUF, wLengthL))
- return 0;
-
- EP0BCH = 0;
- EP0BCL = wLengthL;
- break;
-
- case VRQ_SPI_READ:
- if (!spi_read (wValueH, wValueL, wIndexH, wIndexL, EP0BUF, wLengthL))
- return 0;
-
- EP0BCH = 0;
- EP0BCL = wLengthL;
- break;
-
- case VRQ_SPI_TRANSACT:
- if (!spi_transact (wValueH, wValueL, wIndexH, wIndexL, wLengthH, EP0BUF, wLengthL))
- return 0;
-
- EP0BCH = 0;
- EP0BCL = wLengthL;
- break;
-
- default:
- return 0;
- }
- }
-
- else if (bRequestType == VRT_VENDOR_OUT){
-
- /////////////////////////////////
- // handle the OUT requests
- /////////////////////////////////
-
- switch (bRequest){
-
- case VRQ_SET_LED:
- switch (wIndexL){
- case 0:
- set_led_0 (wValueL);
- break;
-
- case 1:
- set_led_1 (wValueL);
- break;
-
- default:
- return 0;
- }
- break;
-
- case VRQ_FPGA_LOAD:
- switch (wIndexL){ // sub-command
- case FL_BEGIN:
- return fpga_load_begin ();
-
- case FL_XFER:
- get_ep0_data ();
- return fpga_load_xfer (EP0BUF, EP0BCL);
-
- case FL_END:
- return fpga_load_end ();
-
- default:
- return 0;
- }
- break;
-
-
- case VRQ_FPGA_SET_RESET:
- fpga_set_reset (wValueL);
- break;
-
- case VRQ_FPGA_SET_TX_ENABLE:
- fpga_set_tx_enable (wValueL);
- break;
-
- case VRQ_FPGA_SET_RX_ENABLE:
- fpga_set_rx_enable (wValueL);
- break;
-
- case VRQ_FPGA_SET_TX_RESET:
- fpga_set_tx_reset (wValueL);
- break;
-
- case VRQ_FPGA_SET_RX_RESET:
- fpga_set_rx_reset (wValueL);
- break;
-
- case VRQ_I2C_WRITE:
- get_ep0_data ();
- if (!i2c_write (wValueL, EP0BUF, EP0BCL))
- return 0;
- break;
-
- case VRQ_SPI_WRITE:
- get_ep0_data ();
- if (!spi_write (wValueH, wValueL, wIndexH, wIndexL, EP0BUF, EP0BCL))
- return 0;
- break;
-
- default:
- return 0;
- }
-
- }
- else
- return 0; // invalid bRequestType
-
- return 1;
-}
-
-
-
-static void
-main_loop (void)
-{
- setup_flowstate_common ();
-
- while (1){
-
- if (usb_setup_packet_avail ())
- usb_handle_setup_packet ();
-
-
- if (GPIFTRIG & bmGPIF_IDLE){
-
- // OK, GPIF is idle. Let's try to give it some work.
-
- // First check for underruns and overruns
-
- if (UC_BOARD_HAS_FPGA && (USRP_PA & (bmPA_TX_UNDERRUN | bmPA_RX_OVERRUN))){
-
- // record the under/over run
- if (USRP_PA & bmPA_TX_UNDERRUN)
- g_tx_underrun = 1;
-
- if (USRP_PA & bmPA_RX_OVERRUN)
- g_rx_overrun = 1;
-
- // tell the FPGA to clear the flags
- fpga_clear_flags ();
- }
-
- // Next see if there are any "OUT" packets waiting for our attention,
- // and if so, if there's room in the FPGA's FIFO for them.
-
- if (g_tx_enable && !(EP24FIFOFLGS & 0x02)){ // USB end point fifo is not empty...
-
- if (fpga_has_room_for_packet ()){ // ... and FPGA has room for packet
-
- GPIFTCB1 = 0x01; SYNCDELAY;
- GPIFTCB0 = 0x00; SYNCDELAY;
-
- setup_flowstate_write ();
-
- SYNCDELAY;
- GPIFTRIG = bmGPIF_EP2_START | bmGPIF_WRITE; // start the xfer
- SYNCDELAY;
-
- while (!(GPIFTRIG & bmGPIF_IDLE)){
- // wait for the transaction to complete
- }
- }
- }
-
- // See if there are any requests for "IN" packets, and if so
- // whether the FPGA's got any packets for us.
-
- if (g_rx_enable && !(EP6CS & bmEPFULL)){ // USB end point fifo is not full...
-
- if (fpga_has_packet_avail ()){ // ... and FPGA has packet available
-
- GPIFTCB1 = 0x01; SYNCDELAY;
- GPIFTCB0 = 0x00; SYNCDELAY;
-
- setup_flowstate_read ();
-
- SYNCDELAY;
- GPIFTRIG = bmGPIF_EP6_START | bmGPIF_READ; // start the xfer
- SYNCDELAY;
-
- while (!(GPIFTRIG & bmGPIF_IDLE)){
- // wait for the transaction to complete
- }
-
- SYNCDELAY;
- INPKTEND = 6; // tell USB we filled buffer (6 is our endpoint num)
- }
- }
- }
- }
-}
-
-
-/*
- * called at 100 Hz from timer2 interrupt
- *
- * Toggle led 0
- */
-void
-isr_tick (void) interrupt
-{
- static unsigned char count = 1;
-
- if (--count == 0){
- count = 50;
- USRP_LED_REG ^= bmLED0;
- }
-
- clear_timer_irq ();
-}
-
-/*
- * Read h/w rev code and serial number out of boot eeprom and
- * patch the usb descriptors with the values.
- */
-void
-patch_usb_descriptors(void)
-{
- static xdata unsigned char hw_rev;
- static xdata unsigned char serial_no[8];
- unsigned char i;
-
- eeprom_read(I2C_ADDR_BOOT, HW_REV_OFFSET, &hw_rev, 1); // LSB of device id
- usb_desc_hw_rev_binary_patch_location_0[0] = hw_rev;
- usb_desc_hw_rev_binary_patch_location_1[0] = hw_rev;
- usb_desc_hw_rev_ascii_patch_location_0[0] = hw_rev + '0'; // FIXME if we get > 9
-
- eeprom_read(I2C_ADDR_BOOT, SERIAL_NO_OFFSET, serial_no, SERIAL_NO_LEN);
-
- for (i = 0; i < SERIAL_NO_LEN; i++){
- unsigned char ch = serial_no[i];
- if (ch == 0xff) // make unprogrammed EEPROM default to '0'
- ch = '0';
- usb_desc_serial_number_ascii[i << 1] = ch;
- }
-}
-
-void
-main (void)
-{
-#if 0
- g_rx_enable = 0; // FIXME (work around initialization bug)
- g_tx_enable = 0;
- g_rx_overrun = 0;
- g_tx_underrun = 0;
-#endif
-
- memset (hash1, 0, USRP_HASH_SIZE); // zero fpga bitstream hash. This forces reload
-
- init_usrp ();
- init_gpif ();
-
- // if (UC_START_WITH_GSTATE_OUTPUT_ENABLED)
- IFCONFIG |= bmGSTATE; // no conflict, start with it on
-
- set_led_0 (0);
- set_led_1 (0);
-
- EA = 0; // disable all interrupts
-
- patch_usb_descriptors();
-
- setup_autovectors ();
- usb_install_handlers ();
- hook_timer_tick ((unsigned short) isr_tick);
-
- EIEX4 = 1; // disable INT4 FIXME
- EA = 1; // global interrupt enable
-
- fx2_renumerate (); // simulates disconnect / reconnect
-
- main_loop ();
-}
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