diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/dev/phy/rt8139.c | 54 | ||||
| -rw-r--r-- | sys/include/dev/phy/rt8139.h | 13 | ||||
| -rw-r--r-- | sys/include/net/if.h | 35 | ||||
| -rw-r--r-- | sys/include/net/if_ether.h | 74 |
4 files changed, 174 insertions, 2 deletions
diff --git a/sys/dev/phy/rt8139.c b/sys/dev/phy/rt8139.c index e2f87e1..ab8a6c0 100644 --- a/sys/dev/phy/rt8139.c +++ b/sys/dev/phy/rt8139.c @@ -31,10 +31,12 @@ #include <sys/errno.h> #include <sys/syslog.h> #include <sys/driver.h> +#include <sys/device.h> #include <dev/pci/pci.h> #include <dev/phy/rt8139.h> #include <dev/timer.h> #include <dev/pci/pciregs.h> +#include <net/if_ether.h> #include <vm/physmem.h> #include <vm/vm.h> #include <machine/pio.h> @@ -65,6 +67,7 @@ static struct pci_device *dev; static struct timer tmr; +static struct etherdev wire; static uint16_t ioport; static paddr_t rxbuf, txbuf; @@ -218,6 +221,10 @@ rt_init_pci(void) static int rt_init_mac(void) { + uint8_t conf; + uint32_t tmp; + int error; + /* * First step is ensuring the MAC is in known * and consistent state by resetting it. God @@ -226,7 +233,52 @@ rt_init_mac(void) ioport = dev->bar[0] & ~1; pr_trace("resetting MAC...\n"); rt_write(RT_CHIPCMD, 1, RT_RST); - rt_poll(RT_CHIPCMD, 1, RT_RST, 0); + error = rt_poll(RT_CHIPCMD, 1, RT_RST, 0); + if (error < 0) { + pr_error("RTL8139 reset timeout\n"); + return error; + } + + /* + * Tell the RTL8139 to load config data from + * the 93C46. This is done by clearing EEM1 + * and setting EEM0. This whole process should + * take roughly 2 milliseconds. + * + * XXX: EEPROM autoloads *should* happen during a hardware + * reset but some cards might not follow spec so force + * it. + */ + conf = rt_read(RT_CFG9346, 1); + conf &= ~RT_EEM1; + conf |= RT_EEM0; + rt_write(RT_CFG9346, 1, conf); + + /* MAC address dword 0 */ + tmp = rt_read(RT_IDR0, 4); + wire.mac_addr[0] = tmp & 0xFF; + wire.mac_addr[1] = (tmp >> 8) & 0xFF; + wire.mac_addr[2] = (tmp >> 16) & 0xFF; + wire.mac_addr[3] = (tmp >> 24) & 0xFF; + + /* MAC address word 1 */ + tmp = rt_read(RT_IDR2, 4); + wire.mac_addr[4] = (tmp >> 16) & 0xFF; + wire.mac_addr[5] = (tmp >> 24) & 0xFF; + + pr_trace("MAC address: %x:%x:%x:%x:%x:%x\n", + (uint64_t)wire.mac_addr[0], (uint64_t)wire.mac_addr[1], + (uint64_t)wire.mac_addr[2], (uint64_t)wire.mac_addr[3], + (uint64_t)wire.mac_addr[4], (uint64_t)wire.mac_addr[5]); + + /* + * Alright, now we don't want those EEM bits + * sticking lopsided so lets put the RTL8139 + * back into normal operation... + */ + conf = rt_read(RT_CFG9346, 1); + conf &= ~(RT_EEM1 | RT_EEM0); + rt_write(RT_CFG9346, 1, conf); rxbuf = vm_alloc_frame(RX_BUF_SIZE); txbuf = vm_alloc_frame(RX_BUF_SIZE); diff --git a/sys/include/dev/phy/rt8139.h b/sys/include/dev/phy/rt8139.h index ef7b127..21c7d54 100644 --- a/sys/include/dev/phy/rt8139.h +++ b/sys/include/dev/phy/rt8139.h @@ -33,7 +33,14 @@ #include <sys/types.h> #include <sys/param.h> -#define RT_IDR0 0x00 /* MAC address */ +/* MAC address */ +#define RT_IDR0 0x00 +#define RT_IDR1 0x00 +#define RT_IDR2 0x02 +#define RT_IDR3 0x03 +#define RT_IDR4 0x04 +#define RT_IDR5 0x05 + #define RT_MAR0 0x08 /* Multicast filter */ #define RT_TXSTATUS0 0x10 /* Transmit status (4 32bit regs) */ #define RT_TXADDR0 0x20 /* Tx descriptors (also 4 32bit) */ @@ -70,6 +77,10 @@ #define RT_RE BIT(3) /* Receiver enable */ #define RT_RST BIT(4) /* Reset */ +/* 93C46 EEPROM mode bits */ +#define RT_EEM0 BIT(6) +#define RT_EEM1 BIT(7) + /* Receive register bits */ #define RT_AAP BIT(0) /* Accept all packets */ #define RT_APM BIT(1) /* Accept physical match packets */ diff --git a/sys/include/net/if.h b/sys/include/net/if.h new file mode 100644 index 0000000..bd57509 --- /dev/null +++ b/sys/include/net/if.h @@ -0,0 +1,35 @@ +/* + * Copyright (c) 2023-2025 Ian Marco Moffett and the Osmora Team. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of Hyra nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _NET_IF_H_ +#define _NET_IF_H_ + +#define IFNAMESIZ 16 + +#endif /* !_NET_IF_H_ */ diff --git a/sys/include/net/if_ether.h b/sys/include/net/if_ether.h new file mode 100644 index 0000000..a8fcfa5 --- /dev/null +++ b/sys/include/net/if_ether.h @@ -0,0 +1,74 @@ +/* + * Copyright (c) 2023-2025 Ian Marco Moffett and the Osmora Team. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of Hyra nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _IF_ETHER_H_ +#define _IF_ETHER_H_ + +#include <sys/cdefs.h> +#include <sys/types.h> +#include <net/if.h> + +#define MACADDR_LEN 6 + +struct __packed ether_frame { + uint8_t sync[7]; /* Preamble (sync stuff) */ + uint8_t spd; /* Start frame delimiter */ + uint8_t macd[6]; /* MAC destination */ + uint8_t macs[6]; /* MAC source */ + uint16_t type; /* Protocol type */ + char payload[1]; /* sized @ 1+n */ +}; + +/* + * Used by the driver to buffer packets. + */ +struct etherbuf { + struct ether_frame *frp; + off_t head; + off_t tail; + size_t cap; /* In entries */ +}; + +/* + * Ethernet device + * + * if_ether: E + * driver: D + * + * @if_name: Interface name. + * @tx: Transmit packets (D->E) + */ +struct etherdev { + char if_name[IFNAMESIZ]; + struct etherbuf *buf; + ssize_t(*tx)(struct etherdev *ep, const void *buf, size_t len); + char mac_addr[MACADDR_LEN]; +}; + +#endif /* !_IF_ETHER_H_ */ |