From 22ed61f97815856bf74cec25ae6bca88bfbe5f44 Mon Sep 17 00:00:00 2001 From: Josh Blum Date: Wed, 22 Dec 2010 19:19:14 -0800 Subject: zpu: renamed the directory for the usrp2 fw to zpu to reflect the cpu type --- firmware/microblaze/usrp2/ethernet.c | 290 ----------------------------------- 1 file changed, 290 deletions(-) delete mode 100644 firmware/microblaze/usrp2/ethernet.c (limited to 'firmware/microblaze/usrp2/ethernet.c') diff --git a/firmware/microblaze/usrp2/ethernet.c b/firmware/microblaze/usrp2/ethernet.c deleted file mode 100644 index 5d4654bda..000000000 --- a/firmware/microblaze/usrp2/ethernet.c +++ /dev/null @@ -1,290 +0,0 @@ -/* - * 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 . - */ - -#include "ethernet.h" -#include "eth_phy.h" -#include "eth_mac.h" -#include "eth_mac_regs.h" -#include "pic.h" -#include "hal_io.h" -#include "nonstdio.h" - -#define VERBOSE 1 - -static ethernet_t ed_state; -static ethernet_link_changed_callback_t ed_callback = 0; - -void -ethernet_register_link_changed_callback(ethernet_link_changed_callback_t new_callback) -{ - ed_callback = new_callback; -} - - -static void -ed_set_mac_speed(int speed) -{ - printf("Speed set to %d\n",speed); - /* - switch(speed){ - case 10: - eth_mac->speed = 1; - break; - case 100: - eth_mac->speed = 2; - break; - case 1000: - eth_mac->speed = 4; - break; - default: - break; - } - */ -} - -static void -ed_link_up(int speed) -{ - // putstr("ed_link_up: "); puthex16_nl(speed); - - ed_set_mac_speed(speed); - - if (ed_callback) // fire link changed callback - (*ed_callback)(speed); -} - -static void -ed_link_down(void) -{ - // putstr("ed_link_down\n"); - - if (ed_callback) // fire link changed callback - (*ed_callback)(0); -} - - -static void -ed_link_speed_change(int speed) -{ - ed_link_down(); - ed_link_up(speed); -} - -static void -print_flow_control(int flow_control) -{ - static const char *flow_control_msg[4] = { - "NONE", "WE_TX", "WE_RX", "SYMMETRIC" - }; - putstr("ethernet flow control: "); - puts(flow_control_msg[flow_control & 0x3]); -} - -static void -check_flow_control_resolution(void) -{ - static const unsigned char table[16] = { - // index = {local_asm, local_pause, partner_asm, partner_pause} - FC_NONE, FC_NONE, FC_NONE, FC_NONE, - FC_NONE, FC_SYMM, FC_NONE, FC_SYMM, - FC_NONE, FC_NONE, FC_NONE, FC_WE_TX, - FC_NONE, FC_SYMM, FC_WE_RX, FC_SYMM - }; - - int us = eth_mac_miim_read(PHY_AUTONEG_ADV); - int lp = eth_mac_miim_read(PHY_LP_ABILITY); - int index = (((us >> 10) & 0x3) << 2) | ((lp >> 10) & 0x3); - ed_state.flow_control = table[index]; - - if (1) - print_flow_control(ed_state.flow_control); -} - -/* - * Read the PHY state register to determine link state and speed - */ -static void -ed_check_phy_state(void) -{ - int lansr = eth_mac_miim_read(PHY_LINK_AN); - eth_link_state_t new_state = LS_UNKNOWN; - int new_speed = S_UNKNOWN; - - if (VERBOSE){ - putstr("LANSR: "); - puthex16_nl(lansr); - } - - if (lansr & LANSR_LINK_GOOD){ // link's up - if (VERBOSE) - puts(" LINK_GOOD"); - - new_state = LS_UP; - switch (lansr & LANSR_SPEED_MASK){ - case LANSR_SPEED_10: - new_speed = 10; - break; - - case LANSR_SPEED_100: - new_speed = 100; - break; - - case LANSR_SPEED_1000: - new_speed = 1000; - break; - - default: - new_speed = S_UNKNOWN; - break; - } - - check_flow_control_resolution(); - } - else { // link's down - if (VERBOSE) - puts(" NOT LINK_GOOD"); - - new_state = LS_DOWN; - new_speed = S_UNKNOWN; - } - - if (new_state != ed_state.link_state){ - ed_state.link_state = new_state; // remember new state - if (new_state == LS_UP) - ed_link_up(new_speed); - else if (new_state == LS_DOWN) - ed_link_down(); - } - else if (new_state == LS_UP && new_speed != ed_state.link_speed){ - ed_state.link_speed = new_speed; // remember new speed - ed_link_speed_change(new_speed); - } -} - -/* - * This is fired when the ethernet PHY state changes - */ -static void -eth_phy_irq_handler(unsigned irq) -{ - ed_check_phy_state(); - eth_mac_miim_write(PHY_INT_CLEAR, ~0); // clear all ints -} - -void -ethernet_init(void) -{ - eth_mac_init(ethernet_mac_addr()); - - ed_state.link_state = LS_UNKNOWN; - ed_state.link_speed = S_UNKNOWN; - - // initialize MAC registers - // eth_mac->tx_hwmark = 0x1e; - //eth_mac->tx_lwmark = 0x19; - - //eth_mac->crc_chk_en = 1; - //eth_mac->rx_max_length = 2048; - - // configure PAUSE frame stuff - //eth_mac->tx_pause_en = 1; // pay attn to pause frames sent to us - - //eth_mac->pause_quanta_set = 38; // a bit more than 1 max frame 16kb/512 + fudge - //eth_mac->pause_frame_send_en = 1; // enable sending pause frames - - - // setup PHY to interrupt on changes - - unsigned mask = - (PHY_INT_AN_CMPL // auto-neg completed - | PHY_INT_NO_LINK // no link after auto-neg - | PHY_INT_NO_HCD // no highest common denominator - | PHY_INT_MAS_SLA_ERR // couldn't resolve master/slave - | PHY_INT_PRL_DET_FLT // parallel detection fault - | PHY_INT_LNK_CNG // link established or broken - | PHY_INT_SPD_CNG // speed changed - ); - - eth_mac_miim_write(PHY_INT_CLEAR, ~0); // clear all pending interrupts - eth_mac_miim_write(PHY_INT_MASK, mask); // enable the ones we want - - pic_register_handler(IRQ_PHY, eth_phy_irq_handler); - - // Advertise our flow control configuation. - // - // We and the link partner each specify two bits in the base page - // related to autoconfiguration: NWAY_AR_PAUSE and NWAY_AR_ASM_DIR. - // The bits say what a device is "willing" to do, not what may actually - // happen as a result of the negotiation. There are 4 cases: - // - // PAUSE ASM_DIR - // - // 0 0 I have no flow control capability. - // - // 1 0 I both assert and respond to flow control. - // - // 0 1 I assert flow control, but cannot respond. That is, - // I want to be able to send PAUSE frames, but will ignore any - // you send to me. (This is our configuration.) - // - // 1 1 I can both assert and respond to flow control AND I am willing - // to operate symmetrically OR asymmetrically in EITHER direction. - // (We hope the link partner advertises this, otherwise we don't - // get what we want.) - - int t = eth_mac_miim_read(PHY_AUTONEG_ADV); - t &= ~(NWAY_AR_PAUSE | NWAY_AR_ASM_DIR); - t |= NWAY_AR_ASM_DIR; - - // Say we can't to 10BASE-T or 100BASE-TX, half or full duplex - t &= ~(NWAY_AR_10T_HD_CAPS | NWAY_AR_10T_FD_CAPS | NWAY_AR_100TX_HD_CAPS | NWAY_AR_100TX_FD_CAPS); - - eth_mac_miim_write(PHY_AUTONEG_ADV, t); - int r = eth_mac_miim_read(PHY_AUTONEG_ADV); // DEBUG, read back - if (t != r){ - printf("PHY_AUTONEG_ADV: wrote 0x%x, got 0x%x\n", t, r); - } - - // Restart autonegotation. - // We want to ensure that we're advertising our PAUSE capabilities. - t = eth_mac_miim_read(PHY_CTRL); - eth_mac_miim_write(PHY_CTRL, t | MII_CR_RESTART_AUTO_NEG); -} - -int -ethernet_check_errors(void) -{ - // these registers are reset when read - - int r = 0; - /* - if (eth_mac_read_rmon(0x05) != 0) - r |= RME_RX_CRC; - if (eth_mac_read_rmon(0x06) != 0) - r |= RME_RX_FIFO_FULL; - if (eth_mac_read_rmon(0x07) != 0) - r |= RME_RX_2SHORT_2LONG; - - if (eth_mac_read_rmon(0x25) != 0) - r |= RME_TX_JAM_DROP; - if (eth_mac_read_rmon(0x26) != 0) - r |= RME_TX_FIFO_UNDER; - if (eth_mac_read_rmon(0x27) != 0) - r |= RME_TX_FIFO_OVER; - */ - return r; -} -- cgit v1.2.3