diff options
Diffstat (limited to 'firmware/fx2/src/common/fpga_load.c')
| -rw-r--r-- | firmware/fx2/src/common/fpga_load.c | 193 |
1 files changed, 0 insertions, 193 deletions
diff --git a/firmware/fx2/src/common/fpga_load.c b/firmware/fx2/src/common/fpga_load.c deleted file mode 100644 index c3ae9e707..000000000 --- a/firmware/fx2/src/common/fpga_load.c +++ /dev/null @@ -1,193 +0,0 @@ -/* - * USRP - Universal Software Radio Peripheral - * - * Copyright (C) 2003 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 "fpga_load.h" -#include "delay.h" - -/* - * setup altera FPGA serial load (PS). - * - * On entry: - * don't care - * - * On exit: - * ALTERA_DCLK = 0 - * ALTERA_NCONFIG = 1 - * ALTERA_NSTATUS = 1 (input) - */ -unsigned char -fpga_load_begin (void) -{ - USRP_ALTERA_CONFIG &= ~bmALTERA_BITS; // clear all bits (NCONFIG low) - udelay (40); // wait 40 us - USRP_ALTERA_CONFIG |= bmALTERA_NCONFIG; // set NCONFIG high - - if (UC_BOARD_HAS_FPGA){ - // FIXME should really cap this loop with a counter so we - // don't hang forever on a hardware failure. - while ((USRP_ALTERA_CONFIG & bmALTERA_NSTATUS) == 0) // wait for NSTATUS to go high - ; - } - - // ready to xfer now - - return 1; -} - -/* - * clock out the low bit of bits. - * - * On entry: - * ALTERA_DCLK = 0 - * ALTERA_NCONFIG = 1 - * ALTERA_NSTATUS = 1 (input) - * - * On exit: - * ALTERA_DCLK = 0 - * ALTERA_NCONFIG = 1 - * ALTERA_NSTATUS = 1 (input) - */ - - -#if 0 - -static void -clock_out_config_byte (unsigned char bits) -{ - unsigned char i; - - // clock out configuration byte, least significant bit first - - for (i = 0; i < 8; i++){ - - USRP_ALTERA_CONFIG = ((USRP_ALTERA_CONFIG & ~bmALTERA_DATA0) | ((bits & 1) ? bmALTERA_DATA0 : 0)); - USRP_ALTERA_CONFIG |= bmALTERA_DCLK; /* set DCLK to 1 */ - USRP_ALTERA_CONFIG &= ~bmALTERA_DCLK; /* set DCLK to 0 */ - - bits = bits >> 1; - } -} - -#else - -static void -clock_out_config_byte (unsigned char bits) _naked -{ - _asm - mov a, dpl - - rrc a - mov _bitALTERA_DATA0,c - setb _bitALTERA_DCLK - clr _bitALTERA_DCLK - - rrc a - mov _bitALTERA_DATA0,c - setb _bitALTERA_DCLK - clr _bitALTERA_DCLK - - rrc a - mov _bitALTERA_DATA0,c - setb _bitALTERA_DCLK - clr _bitALTERA_DCLK - - rrc a - mov _bitALTERA_DATA0,c - setb _bitALTERA_DCLK - clr _bitALTERA_DCLK - - rrc a - mov _bitALTERA_DATA0,c - setb _bitALTERA_DCLK - clr _bitALTERA_DCLK - - rrc a - mov _bitALTERA_DATA0,c - setb _bitALTERA_DCLK - clr _bitALTERA_DCLK - - rrc a - mov _bitALTERA_DATA0,c - setb _bitALTERA_DCLK - clr _bitALTERA_DCLK - - rrc a - mov _bitALTERA_DATA0,c - setb _bitALTERA_DCLK - clr _bitALTERA_DCLK - - ret - - _endasm; -} - -#endif - -static void -clock_out_bytes (unsigned char bytecount, - unsigned char xdata *p) -{ - while (bytecount-- > 0) - clock_out_config_byte (*p++); -} - -/* - * Transfer block of bytes from packet to FPGA serial configuration port - * - * On entry: - * ALTERA_DCLK = 0 - * ALTERA_NCONFIG = 1 - * ALTERA_NSTATUS = 1 (input) - * - * On exit: - * ALTERA_DCLK = 0 - * ALTERA_NCONFIG = 1 - * ALTERA_NSTATUS = 1 (input) - */ -unsigned char -fpga_load_xfer (xdata unsigned char *p, unsigned char bytecount) -{ - clock_out_bytes (bytecount, p); - return 1; -} - -/* - * check for successful load... - */ -unsigned char -fpga_load_end (void) -{ - unsigned char status = USRP_ALTERA_CONFIG; - - if (!UC_BOARD_HAS_FPGA) // always true if we don't have FPGA - return 1; - - if ((status & bmALTERA_NSTATUS) == 0) // failed to program - return 0; - - if ((status & bmALTERA_CONF_DONE) == bmALTERA_CONF_DONE) - return 1; // everything's cool - - // I don't think this should happen. It indicates that - // programming is still in progress. - - return 0; -} |