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-rw-r--r--firmware/microblaze/usrp2/ethernet.c290
1 files changed, 0 insertions, 290 deletions
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 <http://www.gnu.org/licenses/>.
- */
-
-#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;
-}
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