forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
473 lines
14 KiB
473 lines
14 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
|
/* |
|
* Header file for sonic.c |
|
* |
|
* (C) Waldorf Electronics, Germany |
|
* Written by Andreas Busse |
|
* |
|
* NOTE: most of the structure definitions here are endian dependent. |
|
* If you want to use this driver on big endian machines, the data |
|
* and pad structure members must be exchanged. Also, the structures |
|
* need to be changed accordingly to the bus size. |
|
* |
|
* 981229 MSch: did just that for the 68k Mac port (32 bit, big endian) |
|
* |
|
* 990611 David Huggins-Daines <[email protected]>: This machine abstraction |
|
* does not cope with 16-bit bus sizes very well. Therefore I have |
|
* rewritten it with ugly macros and evil inlines. |
|
* |
|
* 050625 Finn Thain: introduced more 32-bit cards and dhd's support |
|
* for 16-bit cards (from the mac68k project). |
|
*/ |
|
|
|
#ifndef SONIC_H |
|
#define SONIC_H |
|
|
|
|
|
/* |
|
* SONIC register offsets |
|
*/ |
|
|
|
#define SONIC_CMD 0x00 |
|
#define SONIC_DCR 0x01 |
|
#define SONIC_RCR 0x02 |
|
#define SONIC_TCR 0x03 |
|
#define SONIC_IMR 0x04 |
|
#define SONIC_ISR 0x05 |
|
|
|
#define SONIC_UTDA 0x06 |
|
#define SONIC_CTDA 0x07 |
|
|
|
#define SONIC_URDA 0x0d |
|
#define SONIC_CRDA 0x0e |
|
#define SONIC_EOBC 0x13 |
|
#define SONIC_URRA 0x14 |
|
#define SONIC_RSA 0x15 |
|
#define SONIC_REA 0x16 |
|
#define SONIC_RRP 0x17 |
|
#define SONIC_RWP 0x18 |
|
#define SONIC_RSC 0x2b |
|
|
|
#define SONIC_CEP 0x21 |
|
#define SONIC_CAP2 0x22 |
|
#define SONIC_CAP1 0x23 |
|
#define SONIC_CAP0 0x24 |
|
#define SONIC_CE 0x25 |
|
#define SONIC_CDP 0x26 |
|
#define SONIC_CDC 0x27 |
|
|
|
#define SONIC_WT0 0x29 |
|
#define SONIC_WT1 0x2a |
|
|
|
#define SONIC_SR 0x28 |
|
|
|
|
|
/* test-only registers */ |
|
|
|
#define SONIC_TPS 0x08 |
|
#define SONIC_TFC 0x09 |
|
#define SONIC_TSA0 0x0a |
|
#define SONIC_TSA1 0x0b |
|
#define SONIC_TFS 0x0c |
|
|
|
#define SONIC_CRBA0 0x0f |
|
#define SONIC_CRBA1 0x10 |
|
#define SONIC_RBWC0 0x11 |
|
#define SONIC_RBWC1 0x12 |
|
#define SONIC_TTDA 0x20 |
|
#define SONIC_MDT 0x2f |
|
|
|
#define SONIC_TRBA0 0x19 |
|
#define SONIC_TRBA1 0x1a |
|
#define SONIC_TBWC0 0x1b |
|
#define SONIC_TBWC1 0x1c |
|
#define SONIC_LLFA 0x1f |
|
|
|
#define SONIC_ADDR0 0x1d |
|
#define SONIC_ADDR1 0x1e |
|
|
|
/* |
|
* Error counters |
|
*/ |
|
|
|
#define SONIC_CRCT 0x2c |
|
#define SONIC_FAET 0x2d |
|
#define SONIC_MPT 0x2e |
|
|
|
#define SONIC_DCR2 0x3f |
|
|
|
/* |
|
* SONIC command bits |
|
*/ |
|
|
|
#define SONIC_CR_LCAM 0x0200 |
|
#define SONIC_CR_RRRA 0x0100 |
|
#define SONIC_CR_RST 0x0080 |
|
#define SONIC_CR_ST 0x0020 |
|
#define SONIC_CR_STP 0x0010 |
|
#define SONIC_CR_RXEN 0x0008 |
|
#define SONIC_CR_RXDIS 0x0004 |
|
#define SONIC_CR_TXP 0x0002 |
|
#define SONIC_CR_HTX 0x0001 |
|
|
|
#define SONIC_CR_ALL (SONIC_CR_LCAM | SONIC_CR_RRRA | \ |
|
SONIC_CR_RXEN | SONIC_CR_TXP) |
|
|
|
/* |
|
* SONIC data configuration bits |
|
*/ |
|
|
|
#define SONIC_DCR_EXBUS 0x8000 |
|
#define SONIC_DCR_LBR 0x2000 |
|
#define SONIC_DCR_PO1 0x1000 |
|
#define SONIC_DCR_PO0 0x0800 |
|
#define SONIC_DCR_SBUS 0x0400 |
|
#define SONIC_DCR_USR1 0x0200 |
|
#define SONIC_DCR_USR0 0x0100 |
|
#define SONIC_DCR_WC1 0x0080 |
|
#define SONIC_DCR_WC0 0x0040 |
|
#define SONIC_DCR_DW 0x0020 |
|
#define SONIC_DCR_BMS 0x0010 |
|
#define SONIC_DCR_RFT1 0x0008 |
|
#define SONIC_DCR_RFT0 0x0004 |
|
#define SONIC_DCR_TFT1 0x0002 |
|
#define SONIC_DCR_TFT0 0x0001 |
|
|
|
/* |
|
* Constants for the SONIC receive control register. |
|
*/ |
|
|
|
#define SONIC_RCR_ERR 0x8000 |
|
#define SONIC_RCR_RNT 0x4000 |
|
#define SONIC_RCR_BRD 0x2000 |
|
#define SONIC_RCR_PRO 0x1000 |
|
#define SONIC_RCR_AMC 0x0800 |
|
#define SONIC_RCR_LB1 0x0400 |
|
#define SONIC_RCR_LB0 0x0200 |
|
|
|
#define SONIC_RCR_MC 0x0100 |
|
#define SONIC_RCR_BC 0x0080 |
|
#define SONIC_RCR_LPKT 0x0040 |
|
#define SONIC_RCR_CRS 0x0020 |
|
#define SONIC_RCR_COL 0x0010 |
|
#define SONIC_RCR_CRCR 0x0008 |
|
#define SONIC_RCR_FAER 0x0004 |
|
#define SONIC_RCR_LBK 0x0002 |
|
#define SONIC_RCR_PRX 0x0001 |
|
|
|
#define SONIC_RCR_LB_OFF 0 |
|
#define SONIC_RCR_LB_MAC SONIC_RCR_LB0 |
|
#define SONIC_RCR_LB_ENDEC SONIC_RCR_LB1 |
|
#define SONIC_RCR_LB_TRANS (SONIC_RCR_LB0 | SONIC_RCR_LB1) |
|
|
|
/* default RCR setup */ |
|
|
|
#define SONIC_RCR_DEFAULT (SONIC_RCR_BRD) |
|
|
|
|
|
/* |
|
* SONIC Transmit Control register bits |
|
*/ |
|
|
|
#define SONIC_TCR_PINTR 0x8000 |
|
#define SONIC_TCR_POWC 0x4000 |
|
#define SONIC_TCR_CRCI 0x2000 |
|
#define SONIC_TCR_EXDIS 0x1000 |
|
#define SONIC_TCR_EXD 0x0400 |
|
#define SONIC_TCR_DEF 0x0200 |
|
#define SONIC_TCR_NCRS 0x0100 |
|
#define SONIC_TCR_CRLS 0x0080 |
|
#define SONIC_TCR_EXC 0x0040 |
|
#define SONIC_TCR_OWC 0x0020 |
|
#define SONIC_TCR_PMB 0x0008 |
|
#define SONIC_TCR_FU 0x0004 |
|
#define SONIC_TCR_BCM 0x0002 |
|
#define SONIC_TCR_PTX 0x0001 |
|
|
|
#define SONIC_TCR_DEFAULT 0x0000 |
|
|
|
/* |
|
* Constants for the SONIC_INTERRUPT_MASK and |
|
* SONIC_INTERRUPT_STATUS registers. |
|
*/ |
|
|
|
#define SONIC_INT_BR 0x4000 |
|
#define SONIC_INT_HBL 0x2000 |
|
#define SONIC_INT_LCD 0x1000 |
|
#define SONIC_INT_PINT 0x0800 |
|
#define SONIC_INT_PKTRX 0x0400 |
|
#define SONIC_INT_TXDN 0x0200 |
|
#define SONIC_INT_TXER 0x0100 |
|
#define SONIC_INT_TC 0x0080 |
|
#define SONIC_INT_RDE 0x0040 |
|
#define SONIC_INT_RBE 0x0020 |
|
#define SONIC_INT_RBAE 0x0010 |
|
#define SONIC_INT_CRC 0x0008 |
|
#define SONIC_INT_FAE 0x0004 |
|
#define SONIC_INT_MP 0x0002 |
|
#define SONIC_INT_RFO 0x0001 |
|
|
|
|
|
/* |
|
* The interrupts we allow. |
|
*/ |
|
|
|
#define SONIC_IMR_DEFAULT ( SONIC_INT_BR | \ |
|
SONIC_INT_LCD | \ |
|
SONIC_INT_RFO | \ |
|
SONIC_INT_PKTRX | \ |
|
SONIC_INT_TXDN | \ |
|
SONIC_INT_TXER | \ |
|
SONIC_INT_RDE | \ |
|
SONIC_INT_RBAE | \ |
|
SONIC_INT_CRC | \ |
|
SONIC_INT_FAE | \ |
|
SONIC_INT_MP) |
|
|
|
|
|
#define SONIC_EOL 0x0001 |
|
#define CAM_DESCRIPTORS 16 |
|
|
|
/* Offsets in the various DMA buffers accessed by the SONIC */ |
|
|
|
#define SONIC_BITMODE16 0 |
|
#define SONIC_BITMODE32 1 |
|
#define SONIC_BUS_SCALE(bitmode) ((bitmode) ? 4 : 2) |
|
/* Note! These are all measured in bus-size units, so use SONIC_BUS_SCALE */ |
|
#define SIZEOF_SONIC_RR 4 |
|
#define SONIC_RR_BUFADR_L 0 |
|
#define SONIC_RR_BUFADR_H 1 |
|
#define SONIC_RR_BUFSIZE_L 2 |
|
#define SONIC_RR_BUFSIZE_H 3 |
|
|
|
#define SIZEOF_SONIC_RD 7 |
|
#define SONIC_RD_STATUS 0 |
|
#define SONIC_RD_PKTLEN 1 |
|
#define SONIC_RD_PKTPTR_L 2 |
|
#define SONIC_RD_PKTPTR_H 3 |
|
#define SONIC_RD_SEQNO 4 |
|
#define SONIC_RD_LINK 5 |
|
#define SONIC_RD_IN_USE 6 |
|
|
|
#define SIZEOF_SONIC_TD 8 |
|
#define SONIC_TD_STATUS 0 |
|
#define SONIC_TD_CONFIG 1 |
|
#define SONIC_TD_PKTSIZE 2 |
|
#define SONIC_TD_FRAG_COUNT 3 |
|
#define SONIC_TD_FRAG_PTR_L 4 |
|
#define SONIC_TD_FRAG_PTR_H 5 |
|
#define SONIC_TD_FRAG_SIZE 6 |
|
#define SONIC_TD_LINK 7 |
|
|
|
#define SIZEOF_SONIC_CD 4 |
|
#define SONIC_CD_ENTRY_POINTER 0 |
|
#define SONIC_CD_CAP0 1 |
|
#define SONIC_CD_CAP1 2 |
|
#define SONIC_CD_CAP2 3 |
|
|
|
#define SIZEOF_SONIC_CDA ((CAM_DESCRIPTORS * SIZEOF_SONIC_CD) + 1) |
|
#define SONIC_CDA_CAM_ENABLE (CAM_DESCRIPTORS * SIZEOF_SONIC_CD) |
|
|
|
/* |
|
* Some tunables for the buffer areas. Power of 2 is required |
|
* the current driver uses one receive buffer for each descriptor. |
|
* |
|
* MSch: use more buffer space for the slow m68k Macs! |
|
*/ |
|
#define SONIC_NUM_RRS 16 /* number of receive resources */ |
|
#define SONIC_NUM_RDS SONIC_NUM_RRS /* number of receive descriptors */ |
|
#define SONIC_NUM_TDS 16 /* number of transmit descriptors */ |
|
|
|
#define SONIC_RRS_MASK (SONIC_NUM_RRS - 1) |
|
#define SONIC_RDS_MASK (SONIC_NUM_RDS - 1) |
|
#define SONIC_TDS_MASK (SONIC_NUM_TDS - 1) |
|
|
|
#define SONIC_RBSIZE 1520 /* size of one resource buffer */ |
|
|
|
/* Again, measured in bus size units! */ |
|
#define SIZEOF_SONIC_DESC (SIZEOF_SONIC_CDA \ |
|
+ (SIZEOF_SONIC_TD * SONIC_NUM_TDS) \ |
|
+ (SIZEOF_SONIC_RD * SONIC_NUM_RDS) \ |
|
+ (SIZEOF_SONIC_RR * SONIC_NUM_RRS)) |
|
|
|
/* Information that need to be kept for each board. */ |
|
struct sonic_local { |
|
/* Bus size. 0 == 16 bits, 1 == 32 bits. */ |
|
int dma_bitmode; |
|
/* Register offset within the longword (independent of endianness, |
|
and varies from one type of Macintosh SONIC to another |
|
(Aarrgh)) */ |
|
int reg_offset; |
|
void *descriptors; |
|
/* Crud. These areas have to be within the same 64K. Therefore |
|
we allocate a desriptors page, and point these to places within it. */ |
|
void *cda; /* CAM descriptor area */ |
|
void *tda; /* Transmit descriptor area */ |
|
void *rra; /* Receive resource area */ |
|
void *rda; /* Receive descriptor area */ |
|
struct sk_buff* volatile rx_skb[SONIC_NUM_RRS]; /* packets to be received */ |
|
struct sk_buff* volatile tx_skb[SONIC_NUM_TDS]; /* packets to be transmitted */ |
|
unsigned int tx_len[SONIC_NUM_TDS]; /* lengths of tx DMA mappings */ |
|
/* Logical DMA addresses on MIPS, bus addresses on m68k |
|
* (so "laddr" is a bit misleading) */ |
|
dma_addr_t descriptors_laddr; |
|
u32 cda_laddr; /* logical DMA address of CDA */ |
|
u32 tda_laddr; /* logical DMA address of TDA */ |
|
u32 rra_laddr; /* logical DMA address of RRA */ |
|
u32 rda_laddr; /* logical DMA address of RDA */ |
|
dma_addr_t rx_laddr[SONIC_NUM_RRS]; /* logical DMA addresses of rx skbuffs */ |
|
dma_addr_t tx_laddr[SONIC_NUM_TDS]; /* logical DMA addresses of tx skbuffs */ |
|
unsigned int cur_rx; |
|
unsigned int cur_tx; /* first unacked transmit packet */ |
|
unsigned int eol_rx; |
|
unsigned int eol_tx; /* last unacked transmit packet */ |
|
int msg_enable; |
|
struct device *device; /* generic device */ |
|
struct net_device_stats stats; |
|
spinlock_t lock; |
|
}; |
|
|
|
#define TX_TIMEOUT (3 * HZ) |
|
|
|
/* Index to functions, as function prototypes. */ |
|
|
|
static int sonic_open(struct net_device *dev); |
|
static int sonic_send_packet(struct sk_buff *skb, struct net_device *dev); |
|
static irqreturn_t sonic_interrupt(int irq, void *dev_id); |
|
static void sonic_rx(struct net_device *dev); |
|
static int sonic_close(struct net_device *dev); |
|
static struct net_device_stats *sonic_get_stats(struct net_device *dev); |
|
static void sonic_multicast_list(struct net_device *dev); |
|
static int sonic_init(struct net_device *dev, bool may_sleep); |
|
static void sonic_tx_timeout(struct net_device *dev, unsigned int txqueue); |
|
static void sonic_msg_init(struct net_device *dev); |
|
static int sonic_alloc_descriptors(struct net_device *dev); |
|
|
|
/* Internal inlines for reading/writing DMA buffers. Note that bus |
|
size and endianness matter here, whereas they don't for registers, |
|
as far as we can tell. */ |
|
/* OpenBSD calls this "SWO". I'd like to think that sonic_buf_put() |
|
is a much better name. */ |
|
static inline void sonic_buf_put(u16 *base, int bitmode, |
|
int offset, __u16 val) |
|
{ |
|
if (bitmode) |
|
#ifdef __BIG_ENDIAN |
|
__raw_writew(val, base + (offset * 2) + 1); |
|
#else |
|
__raw_writew(val, base + (offset * 2) + 0); |
|
#endif |
|
else |
|
__raw_writew(val, base + (offset * 1) + 0); |
|
} |
|
|
|
static inline __u16 sonic_buf_get(u16 *base, int bitmode, |
|
int offset) |
|
{ |
|
if (bitmode) |
|
#ifdef __BIG_ENDIAN |
|
return __raw_readw(base + (offset * 2) + 1); |
|
#else |
|
return __raw_readw(base + (offset * 2) + 0); |
|
#endif |
|
else |
|
return __raw_readw(base + (offset * 1) + 0); |
|
} |
|
|
|
/* Inlines that you should actually use for reading/writing DMA buffers */ |
|
static inline void sonic_cda_put(struct net_device* dev, int entry, |
|
int offset, __u16 val) |
|
{ |
|
struct sonic_local *lp = netdev_priv(dev); |
|
sonic_buf_put(lp->cda, lp->dma_bitmode, |
|
(entry * SIZEOF_SONIC_CD) + offset, val); |
|
} |
|
|
|
static inline __u16 sonic_cda_get(struct net_device* dev, int entry, |
|
int offset) |
|
{ |
|
struct sonic_local *lp = netdev_priv(dev); |
|
return sonic_buf_get(lp->cda, lp->dma_bitmode, |
|
(entry * SIZEOF_SONIC_CD) + offset); |
|
} |
|
|
|
static inline void sonic_set_cam_enable(struct net_device* dev, __u16 val) |
|
{ |
|
struct sonic_local *lp = netdev_priv(dev); |
|
sonic_buf_put(lp->cda, lp->dma_bitmode, SONIC_CDA_CAM_ENABLE, val); |
|
} |
|
|
|
static inline __u16 sonic_get_cam_enable(struct net_device* dev) |
|
{ |
|
struct sonic_local *lp = netdev_priv(dev); |
|
return sonic_buf_get(lp->cda, lp->dma_bitmode, SONIC_CDA_CAM_ENABLE); |
|
} |
|
|
|
static inline void sonic_tda_put(struct net_device* dev, int entry, |
|
int offset, __u16 val) |
|
{ |
|
struct sonic_local *lp = netdev_priv(dev); |
|
sonic_buf_put(lp->tda, lp->dma_bitmode, |
|
(entry * SIZEOF_SONIC_TD) + offset, val); |
|
} |
|
|
|
static inline __u16 sonic_tda_get(struct net_device* dev, int entry, |
|
int offset) |
|
{ |
|
struct sonic_local *lp = netdev_priv(dev); |
|
return sonic_buf_get(lp->tda, lp->dma_bitmode, |
|
(entry * SIZEOF_SONIC_TD) + offset); |
|
} |
|
|
|
static inline void sonic_rda_put(struct net_device* dev, int entry, |
|
int offset, __u16 val) |
|
{ |
|
struct sonic_local *lp = netdev_priv(dev); |
|
sonic_buf_put(lp->rda, lp->dma_bitmode, |
|
(entry * SIZEOF_SONIC_RD) + offset, val); |
|
} |
|
|
|
static inline __u16 sonic_rda_get(struct net_device* dev, int entry, |
|
int offset) |
|
{ |
|
struct sonic_local *lp = netdev_priv(dev); |
|
return sonic_buf_get(lp->rda, lp->dma_bitmode, |
|
(entry * SIZEOF_SONIC_RD) + offset); |
|
} |
|
|
|
static inline void sonic_rra_put(struct net_device* dev, int entry, |
|
int offset, __u16 val) |
|
{ |
|
struct sonic_local *lp = netdev_priv(dev); |
|
sonic_buf_put(lp->rra, lp->dma_bitmode, |
|
(entry * SIZEOF_SONIC_RR) + offset, val); |
|
} |
|
|
|
static inline __u16 sonic_rra_get(struct net_device* dev, int entry, |
|
int offset) |
|
{ |
|
struct sonic_local *lp = netdev_priv(dev); |
|
return sonic_buf_get(lp->rra, lp->dma_bitmode, |
|
(entry * SIZEOF_SONIC_RR) + offset); |
|
} |
|
|
|
static inline u16 sonic_rr_addr(struct net_device *dev, int entry) |
|
{ |
|
struct sonic_local *lp = netdev_priv(dev); |
|
|
|
return lp->rra_laddr + |
|
entry * SIZEOF_SONIC_RR * SONIC_BUS_SCALE(lp->dma_bitmode); |
|
} |
|
|
|
static inline u16 sonic_rr_entry(struct net_device *dev, u16 addr) |
|
{ |
|
struct sonic_local *lp = netdev_priv(dev); |
|
|
|
return (addr - (u16)lp->rra_laddr) / (SIZEOF_SONIC_RR * |
|
SONIC_BUS_SCALE(lp->dma_bitmode)); |
|
} |
|
|
|
static const char version[] = |
|
"sonic.c:v0.92 20.9.98 [email protected]\n"; |
|
|
|
#endif /* SONIC_H */
|
|
|