245 lines
7 KiB
C
245 lines
7 KiB
C
#ifndef FS_ENET_H
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#define FS_ENET_H
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#include <linux/mii.h>
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#include <linux/netdevice.h>
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#include <linux/types.h>
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#include <linux/version.h>
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#include <linux/list.h>
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#include <linux/fs_enet_pd.h>
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#include <asm/dma-mapping.h>
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#ifdef CONFIG_CPM1
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#include <asm/commproc.h>
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#endif
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#ifdef CONFIG_CPM2
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#include <asm/cpm2.h>
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#endif
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/* hw driver ops */
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struct fs_ops {
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int (*setup_data)(struct net_device *dev);
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int (*allocate_bd)(struct net_device *dev);
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void (*free_bd)(struct net_device *dev);
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void (*cleanup_data)(struct net_device *dev);
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void (*set_multicast_list)(struct net_device *dev);
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void (*restart)(struct net_device *dev);
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void (*stop)(struct net_device *dev);
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void (*pre_request_irq)(struct net_device *dev, int irq);
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void (*post_free_irq)(struct net_device *dev, int irq);
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void (*napi_clear_rx_event)(struct net_device *dev);
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void (*napi_enable_rx)(struct net_device *dev);
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void (*napi_disable_rx)(struct net_device *dev);
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void (*rx_bd_done)(struct net_device *dev);
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void (*tx_kickstart)(struct net_device *dev);
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u32 (*get_int_events)(struct net_device *dev);
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void (*clear_int_events)(struct net_device *dev, u32 int_events);
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void (*ev_error)(struct net_device *dev, u32 int_events);
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int (*get_regs)(struct net_device *dev, void *p, int *sizep);
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int (*get_regs_len)(struct net_device *dev);
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void (*tx_restart)(struct net_device *dev);
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};
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struct phy_info {
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unsigned int id;
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const char *name;
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void (*startup) (struct net_device * dev);
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void (*shutdown) (struct net_device * dev);
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void (*ack_int) (struct net_device * dev);
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};
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/* The FEC stores dest/src/type, data, and checksum for receive packets.
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*/
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#define MAX_MTU 1508 /* Allow fullsized pppoe packets over VLAN */
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#define MIN_MTU 46 /* this is data size */
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#define CRC_LEN 4
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#define PKT_MAXBUF_SIZE (MAX_MTU+ETH_HLEN+CRC_LEN)
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#define PKT_MINBUF_SIZE (MIN_MTU+ETH_HLEN+CRC_LEN)
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/* Must be a multiple of 32 (to cover both FEC & FCC) */
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#define PKT_MAXBLR_SIZE ((PKT_MAXBUF_SIZE + 31) & ~31)
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/* This is needed so that invalidate_xxx wont invalidate too much */
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#define ENET_RX_FRSIZE L1_CACHE_ALIGN(PKT_MAXBUF_SIZE)
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struct fs_enet_mii_bus {
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struct list_head list;
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spinlock_t mii_lock;
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const struct fs_mii_bus_info *bus_info;
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int refs;
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u32 usage_map;
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int (*mii_read)(struct fs_enet_mii_bus *bus,
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int phy_id, int location);
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void (*mii_write)(struct fs_enet_mii_bus *bus,
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int phy_id, int location, int value);
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union {
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struct {
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unsigned int mii_speed;
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void *fecp;
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} fec;
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struct {
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/* note that the actual port size may */
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/* be different; cpm(s) handle it OK */
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u8 mdio_msk;
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u8 *mdio_dir;
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u8 *mdio_dat;
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u8 mdc_msk;
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u8 *mdc_dir;
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u8 *mdc_dat;
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} bitbang;
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struct {
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u16 lpa;
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} fixed;
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};
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};
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int fs_mii_bitbang_init(struct fs_enet_mii_bus *bus);
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int fs_mii_fixed_init(struct fs_enet_mii_bus *bus);
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int fs_mii_fec_init(struct fs_enet_mii_bus *bus);
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struct fs_enet_private {
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struct device *dev; /* pointer back to the device (must be initialized first) */
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spinlock_t lock; /* during all ops except TX pckt processing */
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spinlock_t tx_lock; /* during fs_start_xmit and fs_tx */
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const struct fs_platform_info *fpi;
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const struct fs_ops *ops;
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int rx_ring, tx_ring;
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dma_addr_t ring_mem_addr;
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void *ring_base;
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struct sk_buff **rx_skbuff;
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struct sk_buff **tx_skbuff;
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cbd_t *rx_bd_base; /* Address of Rx and Tx buffers. */
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cbd_t *tx_bd_base;
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cbd_t *dirty_tx; /* ring entries to be free()ed. */
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cbd_t *cur_rx;
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cbd_t *cur_tx;
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int tx_free;
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struct net_device_stats stats;
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struct timer_list phy_timer_list;
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const struct phy_info *phy;
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u32 msg_enable;
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struct mii_if_info mii_if;
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unsigned int last_mii_status;
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struct fs_enet_mii_bus *mii_bus;
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int interrupt;
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int duplex, speed; /* current settings */
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/* event masks */
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u32 ev_napi_rx; /* mask of NAPI rx events */
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u32 ev_rx; /* rx event mask */
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u32 ev_tx; /* tx event mask */
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u32 ev_err; /* error event mask */
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u16 bd_rx_empty; /* mask of BD rx empty */
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u16 bd_rx_err; /* mask of BD rx errors */
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union {
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struct {
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int idx; /* FEC1 = 0, FEC2 = 1 */
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void *fecp; /* hw registers */
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u32 hthi, htlo; /* state for multicast */
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} fec;
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struct {
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int idx; /* FCC1-3 = 0-2 */
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void *fccp; /* hw registers */
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void *ep; /* parameter ram */
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void *fcccp; /* hw registers cont. */
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void *mem; /* FCC DPRAM */
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u32 gaddrh, gaddrl; /* group address */
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} fcc;
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struct {
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int idx; /* FEC1 = 0, FEC2 = 1 */
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void *sccp; /* hw registers */
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void *ep; /* parameter ram */
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u32 hthi, htlo; /* state for multicast */
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} scc;
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};
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};
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/***************************************************************************/
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int fs_mii_read(struct net_device *dev, int phy_id, int location);
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void fs_mii_write(struct net_device *dev, int phy_id, int location, int value);
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void fs_mii_startup(struct net_device *dev);
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void fs_mii_shutdown(struct net_device *dev);
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void fs_mii_ack_int(struct net_device *dev);
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void fs_mii_link_status_change_check(struct net_device *dev, int init_media);
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void fs_init_bds(struct net_device *dev);
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void fs_cleanup_bds(struct net_device *dev);
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/***************************************************************************/
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#define DRV_MODULE_NAME "fs_enet"
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#define PFX DRV_MODULE_NAME ": "
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#define DRV_MODULE_VERSION "1.0"
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#define DRV_MODULE_RELDATE "Aug 8, 2005"
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/***************************************************************************/
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int fs_enet_platform_init(void);
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void fs_enet_platform_cleanup(void);
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/***************************************************************************/
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/* buffer descriptor access macros */
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/* access macros */
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#if defined(CONFIG_CPM1)
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/* for a a CPM1 __raw_xxx's are sufficient */
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#define __cbd_out32(addr, x) __raw_writel(x, addr)
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#define __cbd_out16(addr, x) __raw_writew(x, addr)
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#define __cbd_in32(addr) __raw_readl(addr)
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#define __cbd_in16(addr) __raw_readw(addr)
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#else
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/* for others play it safe */
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#define __cbd_out32(addr, x) out_be32(addr, x)
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#define __cbd_out16(addr, x) out_be16(addr, x)
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#define __cbd_in32(addr) in_be32(addr)
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#define __cbd_in16(addr) in_be16(addr)
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#endif
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/* write */
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#define CBDW_SC(_cbd, _sc) __cbd_out16(&(_cbd)->cbd_sc, (_sc))
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#define CBDW_DATLEN(_cbd, _datlen) __cbd_out16(&(_cbd)->cbd_datlen, (_datlen))
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#define CBDW_BUFADDR(_cbd, _bufaddr) __cbd_out32(&(_cbd)->cbd_bufaddr, (_bufaddr))
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/* read */
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#define CBDR_SC(_cbd) __cbd_in16(&(_cbd)->cbd_sc)
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#define CBDR_DATLEN(_cbd) __cbd_in16(&(_cbd)->cbd_datlen)
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#define CBDR_BUFADDR(_cbd) __cbd_in32(&(_cbd)->cbd_bufaddr)
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/* set bits */
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#define CBDS_SC(_cbd, _sc) CBDW_SC(_cbd, CBDR_SC(_cbd) | (_sc))
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/* clear bits */
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#define CBDC_SC(_cbd, _sc) CBDW_SC(_cbd, CBDR_SC(_cbd) & ~(_sc))
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/*******************************************************************/
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extern const struct fs_ops fs_fec_ops;
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extern const struct fs_ops fs_fcc_ops;
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extern const struct fs_ops fs_scc_ops;
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/*******************************************************************/
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/* handy pointer to the immap */
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extern void *fs_enet_immap;
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/*******************************************************************/
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#endif
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