diff options
Diffstat (limited to 'usrp2/firmware/lib/hal_io.h')
| -rw-r--r-- | usrp2/firmware/lib/hal_io.h | 169 |
1 files changed, 0 insertions, 169 deletions
diff --git a/usrp2/firmware/lib/hal_io.h b/usrp2/firmware/lib/hal_io.h deleted file mode 100644 index b6ae35b73b..0000000000 --- a/usrp2/firmware/lib/hal_io.h +++ /dev/null @@ -1,169 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2007 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, see <http://www.gnu.org/licenses/>. - */ - -#ifndef INCLUDED_HAL_IO_H -#define INCLUDED_HAL_IO_H - -#include "memory_map.h" - -void hal_io_init(void); -void hal_finish(); - - -/* - * ------------------------------------------------------------------------ - * The GPIO pins are organized into two banks of 16-bits. - * Bank 0 goes to the Tx daughterboard, Bank 1 goes to the Rx daughterboard. - * - * Each pin may be configured as an input or an output from the FPGA. - * For output pins, there are four signals which may be routed to the - * pin. The four signals are the value written by s/w, the output of - * the ATR controller, or two different sources of debug info from the - * FPGA fabric. - * ------------------------------------------------------------------------ - */ - -#define GPIO_TX_BANK 0 // pins that connect to the Tx daughterboard -#define GPIO_RX_BANK 1 // pins that connect to the Rx daughterboard - - -/*! - * \brief Set the data direction for GPIO pins - * - * If the bit is set, it's an output from the FPGA. - * \param value is a 16-bit bitmask of values - * \param mask is a 16-bit bitmask of which bits to effect. - */ -void hal_gpio_set_ddr(int bank, int value, int mask); - -/*! - * \brief Select the source of the signal for an output pin. - * - * \param code is is one of 's', 'a', '0', '1' - * where 's' selects software output, 'a' selects ATR output, '0' selects - * debug 0, '1' selects debug 1. - */ -void hal_gpio_set_sel(int bank, int bitno, char code); - -/*! - * \brief Select the source of the signal for the output pins. - * - * \param codes is is a string of 16 characters composed of '.', 's', - * 'a', '0', or '1' where '.' means "don't change", 's' selects - * software output, 'a' selects ATR output, '0' selects debug 0, '1' - * selects debug 1. - */ -void hal_gpio_set_sels(int bank, char *codes); - - -/*! - * \brief write \p value to gpio pins specified by \p mask. - */ -void hal_gpio_write(int bank, int value, int mask); - -/*! - * \brief read GPIO bits - */ -int hal_gpio_read(int bank); - - -/* - * ------------------------------------------------------------------------ - * control the leds - * - * Low 4-bits are the general purpose leds on the board - * The next bit is the led on the ethernet connector - * ------------------------------------------------------------------------ - */ - -void hal_set_leds(int value, int mask); -void hal_set_led_src(int value, int mask); -void hal_toggle_leds(int mask); - -/* - * ------------------------------------------------------------------------ - * simple timeouts - * ------------------------------------------------------------------------ - */ - - - -static inline void -hal_set_timeout(int delta_ticks) -{ - int t = timer_regs->time + delta_ticks; - if (t == 0) // kills timer - t = 1; - timer_regs->time = t; -} - -/* - * ------------------------------------------------------------------------ - * interrupt enable/disable - * ------------------------------------------------------------------------ - */ - -/*! - * \brief Disable interrupts and return previous interrupt enable state. - * [Microblaze specific] - */ -static inline int -hal_disable_ints(void) -{ - int result, t0; - - asm volatile("mfs %0, rmsr \n\ - andni %1, %0, 0x2 \n\ - mts rmsr, %1" - : "=r" (result), "=r" (t0)); - return result; -} - -/*! - * \brief Enable interrupts and return previous interrupt enable state. - * [Microblaze specific] - */ -static inline int -hal_enable_ints(void) -{ - int result, t0; - - asm volatile("mfs %0, rmsr \n\ - ori %1, %0, 0x2 \n\ - mts rmsr, %1" - : "=r" (result), "=r" (t0)); - return result; -} - -/*! - * \brief Set interrupt enable state to \p prev_state. - * [Microblaze specific] - */ -static inline void -hal_restore_ints(int prev_state) -{ - int t0, t1; - asm volatile("andi %0, %2, 0x2 \n\ - mfs %1, rmsr \n\ - andni %1, %1, 0x2 \n\ - or %1, %1, %0 \n\ - mts rmsr, %1" - : "=r" (t0), "=r"(t1) : "r" (prev_state)); -} - -#endif /* INCLUDED_HAL_IO_H */ |