193 lines
5.3 KiB
C
193 lines
5.3 KiB
C
#ifndef _AR2313_H_
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#define _AR2313_H_
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#include <linux/autoconf.h>
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#include <asm/bootinfo.h>
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#include <ar531x_platform.h>
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/*
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* probe link timer - 5 secs
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*/
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#define LINK_TIMER (5*HZ)
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#define IS_DMA_TX_INT(X) (((X) & (DMA_STATUS_TI)) != 0)
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#define IS_DMA_RX_INT(X) (((X) & (DMA_STATUS_RI)) != 0)
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#define IS_DRIVER_OWNED(X) (((X) & (DMA_TX_OWN)) == 0)
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#define AR2313_TX_TIMEOUT (HZ/4)
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/*
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* Rings
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*/
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#define DSC_RING_ENTRIES_SIZE (AR2313_DESCR_ENTRIES * sizeof(struct desc))
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#define DSC_NEXT(idx) ((idx + 1) & (AR2313_DESCR_ENTRIES - 1))
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static inline int tx_space(u32 csm, u32 prd)
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{
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return (csm - prd - 1) & (AR2313_DESCR_ENTRIES - 1);
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}
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#if MAX_SKB_FRAGS
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#define TX_RESERVED (MAX_SKB_FRAGS+1) /* +1 for message header */
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#define tx_ring_full(csm, prd) (tx_space(csm, prd) <= TX_RESERVED)
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#else
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#define tx_ring_full 0
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#endif
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#define AR2313_MBGET 2
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#define AR2313_MBSET 3
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#define AR2313_PCI_RECONFIG 4
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#define AR2313_PCI_DUMP 5
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#define AR2313_TEST_PANIC 6
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#define AR2313_TEST_NULLPTR 7
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#define AR2313_READ_DATA 8
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#define AR2313_WRITE_DATA 9
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#define AR2313_GET_VERSION 10
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#define AR2313_TEST_HANG 11
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#define AR2313_SYNC 12
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//
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// New Combo structure for Both Eth0 AND eth1
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//
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typedef struct {
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volatile unsigned int mac_control; /* 0x00 */
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volatile unsigned int mac_addr[2]; /* 0x04 - 0x08 */
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volatile unsigned int mcast_table[2]; /* 0x0c - 0x10 */
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volatile unsigned int mii_addr; /* 0x14 */
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volatile unsigned int mii_data; /* 0x18 */
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volatile unsigned int flow_control; /* 0x1c */
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volatile unsigned int vlan_tag; /* 0x20 */
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volatile unsigned int pad[7]; /* 0x24 - 0x3c */
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volatile unsigned int ucast_table[8]; /* 0x40-0x5c */
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} ETHERNET_STRUCT;
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/********************************************************************
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* Interrupt controller
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********************************************************************/
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typedef struct {
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volatile unsigned int wdog_control; /* 0x08 */
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volatile unsigned int wdog_timer; /* 0x0c */
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volatile unsigned int misc_status; /* 0x10 */
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volatile unsigned int misc_mask; /* 0x14 */
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volatile unsigned int global_status; /* 0x18 */
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volatile unsigned int reserved; /* 0x1c */
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volatile unsigned int reset_control; /* 0x20 */
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} INTERRUPT;
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/********************************************************************
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* DMA controller
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********************************************************************/
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typedef struct {
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volatile unsigned int bus_mode; /* 0x00 (CSR0) */
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volatile unsigned int xmt_poll; /* 0x04 (CSR1) */
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volatile unsigned int rcv_poll; /* 0x08 (CSR2) */
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volatile unsigned int rcv_base; /* 0x0c (CSR3) */
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volatile unsigned int xmt_base; /* 0x10 (CSR4) */
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volatile unsigned int status; /* 0x14 (CSR5) */
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volatile unsigned int control; /* 0x18 (CSR6) */
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volatile unsigned int intr_ena; /* 0x1c (CSR7) */
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volatile unsigned int rcv_missed; /* 0x20 (CSR8) */
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volatile unsigned int reserved[11]; /* 0x24-0x4c (CSR9-19) */
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volatile unsigned int cur_tx_buf_addr; /* 0x50 (CSR20) */
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volatile unsigned int cur_rx_buf_addr; /* 0x50 (CSR21) */
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} DMA;
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/*
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* Struct private for the Sibyte.
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*
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* Elements are grouped so variables used by the tx handling goes
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* together, and will go into the same cache lines etc. in order to
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* avoid cache line contention between the rx and tx handling on SMP.
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*
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* Frequently accessed variables are put at the beginning of the
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* struct to help the compiler generate better/shorter code.
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*/
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struct ar2313_private {
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struct net_device *dev;
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int version;
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u32 mb[2];
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volatile ETHERNET_STRUCT *phy_regs;
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volatile ETHERNET_STRUCT *eth_regs;
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volatile DMA *dma_regs;
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volatile u32 *int_regs;
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struct ar531x_eth *cfg;
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spinlock_t lock; /* Serialise access to device */
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/*
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* RX and TX descriptors, must be adjacent
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*/
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ar2313_descr_t *rx_ring;
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ar2313_descr_t *tx_ring;
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struct sk_buff **rx_skb;
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struct sk_buff **tx_skb;
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/*
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* RX elements
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*/
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u32 rx_skbprd;
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u32 cur_rx;
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/*
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* TX elements
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*/
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u32 tx_prd;
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u32 tx_csm;
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/*
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* Misc elements
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*/
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int board_idx;
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char name[48];
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struct net_device_stats stats;
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struct {
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u32 address;
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u32 length;
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char *mapping;
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} desc;
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struct timer_list link_timer;
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unsigned short phy; /* merlot phy = 1, samsung phy = 0x1f */
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unsigned short mac;
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unsigned short link; /* 0 - link down, 1 - link up */
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u16 phyData;
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struct tasklet_struct rx_tasklet;
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int unloading;
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};
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/*
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* Prototypes
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*/
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static int ar2313_init(struct net_device *dev);
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#ifdef TX_TIMEOUT
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static void ar2313_tx_timeout(struct net_device *dev);
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#endif
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#if 0
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static void ar2313_multicast_list(struct net_device *dev);
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#endif
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static int ar2313_restart(struct net_device *dev);
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#if DEBUG
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static void ar2313_dump_regs(struct net_device *dev);
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#endif
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static void ar2313_load_rx_ring(struct net_device *dev, int bufs);
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static irqreturn_t ar2313_interrupt(int irq, void *dev_id);
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static int ar2313_open(struct net_device *dev);
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static int ar2313_start_xmit(struct sk_buff *skb, struct net_device *dev);
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static int ar2313_close(struct net_device *dev);
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static int ar2313_ioctl(struct net_device *dev, struct ifreq *ifr,
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int cmd);
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static void ar2313_init_cleanup(struct net_device *dev);
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static int ar2313_setup_timer(struct net_device *dev);
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static void ar2313_link_timer_fn(unsigned long data);
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static void ar2313_check_link(struct net_device *dev);
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static struct net_device_stats *ar2313_get_stats(struct net_device *dev);
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#endif /* _AR2313_H_ */
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