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      1 /*	$NetBSD: if_tlvar.h,v 1.18 2020/07/07 06:27:37 msaitoh Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1997 Manuel Bouyer.  All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     25  */
     26 
     27 /*
     28  * Texas Instruments ThunderLAN ethernet controller
     29  * ThunderLAN Programmer's Guide (TI Literature Number SPWU013A)
     30  * available from www.ti.com
     31  */
     32 
     33 #include <sys/rndsource.h>
     34 
     35 #include <dev/i2c/i2cvar.h>
     36 
     37 struct tl_product_desc {
     38 	uint32_t tp_product;
     39 	int tp_tlphymedia;
     40 	const char *tp_desc;
     41 };
     42 
     43 struct tl_softc {
     44 	device_t sc_dev;		/* base device */
     45 	bus_space_tag_t tl_bustag;
     46 	bus_space_handle_t tl_bushandle; /* CSR region handle */
     47 	bus_dma_tag_t tl_dmatag;
     48 	const struct tl_product_desc *tl_product;
     49 	void* tl_ih;
     50 	struct ethercom tl_ec;
     51 	struct callout tl_tick_ch;	/* tick callout */
     52 	struct callout tl_restart_ch;	/* restart callout */
     53 	uint8_t tl_enaddr[ETHER_ADDR_LEN];	/* hardware address */
     54 	struct i2c_controller sc_i2c;	/* i2c controller info, for eeprom */
     55 	mii_data_t tl_mii;		/* mii bus */
     56 	bus_dma_segment_t ctrl_segs; /* bus-dma memory for control blocks */
     57 	int ctrl_nsegs;
     58 	char *ctrl;			/* vaddr for ctrl_segs */
     59 	struct Rx_list *Rx_list;	/* Receive and transmit lists */
     60 	struct tl_Rx_list *hw_Rx_list;	/* and assocoated hw descriptor */
     61 	bus_dmamap_t Rx_dmamap;		/* and associated DMA maps */
     62 	struct Tx_list *Tx_list;
     63 	struct tl_Tx_list *hw_Tx_list;
     64 	bus_dmamap_t Tx_dmamap;
     65 	struct Rx_list *active_Rx, *last_Rx;
     66 	struct Tx_list *active_Tx, *last_Tx;
     67 	struct Tx_list *Free_Tx;
     68 	bus_dmamap_t null_dmamap;	/* for small packets padding */
     69 #ifdef TL_PRIV_STATS
     70 	int ierr_overr;
     71 	int ierr_code;
     72 	int ierr_crc;
     73 	int ierr_nomem;
     74 	int oerr_underr;
     75 	int oerr_deferred;
     76 	int oerr_coll;
     77 	int oerr_multicoll;
     78 	int oerr_latecoll;
     79 	int oerr_exesscoll;
     80 	int oerr_carrloss;
     81 	int oerr_mcopy;
     82 #endif
     83 	krndsource_t rnd_source;
     84 };
     85 #define tl_if	tl_ec.ec_if
     86 #define tl_bpf	tl_if.if_bpf
     87 
     88 typedef struct tl_softc tl_softc_t;
     89 typedef u_long ioctl_cmd_t;
     90 
     91 #define TL_HR_READ(sc, reg) \
     92 	bus_space_read_4(sc->tl_bustag, sc->tl_bushandle, (reg))
     93 #define TL_HR_READ_BYTE(sc, reg) \
     94 	bus_space_read_1(sc->tl_bustag, sc->tl_bushandle, (reg))
     95 #define TL_HR_WRITE(sc, reg, data) \
     96 	bus_space_write_4(sc->tl_bustag, sc->tl_bushandle, (reg), (data))
     97 #define TL_HR_WRITE_BYTE(sc, reg, data) \
     98 	bus_space_write_1(sc->tl_bustag, sc->tl_bushandle, (reg), (data))
     99 #define ETHER_MIN_TX (ETHERMIN + sizeof(struct ether_header))
    100