#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/irq.h>
+#include <linux/slab.h>
#include <asm/delay.h>
#include <asm/irq.h>
#define DM9000_PHY 0x40 /* PHY address 0x01 */
-#define CARDNAME "dm9000"
-#define PFX CARDNAME ": "
-#define DRV_VERSION "1.30"
-
-#ifdef CONFIG_BLACKFIN
-#define readsb insb
-#define readsw insw
-#define readsl insl
-#define writesb outsb
-#define writesw outsw
-#define writesl outsl
-#define DEFAULT_TRIGGER IRQF_TRIGGER_HIGH
-#else
-#define DEFAULT_TRIGGER (0)
-#endif
+#define CARDNAME "dm9000"
+#define DRV_VERSION "1.31"
/*
* Transmit timeout, default 5 seconds.
* these two devices.
*/
+/* The driver supports the original DM9000E, and now the two newer
+ * devices, DM9000A and DM9000B.
+ */
+
+enum dm9000_type {
+ TYPE_DM9000E, /* original DM9000 */
+ TYPE_DM9000A,
+ TYPE_DM9000B
+};
+
/* Structure/enum declaration ------------------------------- */
typedef struct board_info {
- void __iomem *io_addr; /* Register I/O base address */
- void __iomem *io_data; /* Data I/O address */
- u16 irq; /* IRQ */
+ void __iomem *io_addr; /* Register I/O base address */
+ void __iomem *io_data; /* Data I/O address */
+ u16 irq; /* IRQ */
+
+ u16 tx_pkt_cnt;
+ u16 queue_pkt_len;
+ u16 queue_start_addr;
+ u16 queue_ip_summed;
+ u16 dbug_cnt;
+ u8 io_mode; /* 0:word, 2:byte */
+ u8 phy_addr;
+ u8 imr_all;
- u16 tx_pkt_cnt;
- u16 queue_pkt_len;
- u16 queue_start_addr;
- u16 dbug_cnt;
- u8 io_mode; /* 0:word, 2:byte */
- u8 phy_addr;
- unsigned int flags;
- unsigned int in_suspend :1;
+ unsigned int flags;
+ unsigned int in_suspend :1;
+ unsigned int wake_supported :1;
+ int debug_level;
- int debug_level;
+ enum dm9000_type type;
void (*inblk)(void __iomem *port, void *data, int length);
void (*outblk)(void __iomem *port, void *data, int length);
struct resource *data_req;
struct resource *irq_res;
+ int irq_wake;
+
struct mutex addr_lock; /* phy and eeprom access lock */
- spinlock_t lock;
+ struct delayed_work phy_poll;
+ struct net_device *ndev;
+
+ spinlock_t lock;
struct mii_if_info mii;
- u32 msg_enable;
+ u32 msg_enable;
+ u32 wake_state;
+
+ int rx_csum;
+ int can_csum;
+ int ip_summed;
} board_info_t;
/* debug code */
static inline board_info_t *to_dm9000_board(struct net_device *dev)
{
- return dev->priv;
+ return netdev_priv(dev);
}
-/* function declaration ------------------------------------- */
-static int dm9000_probe(struct platform_device *);
-static int dm9000_open(struct net_device *);
-static int dm9000_start_xmit(struct sk_buff *, struct net_device *);
-static int dm9000_stop(struct net_device *);
-static int dm9000_ioctl(struct net_device *dev, struct ifreq *req, int cmd);
-
-static void dm9000_init_dm9000(struct net_device *);
-
-static irqreturn_t dm9000_interrupt(int, void *);
-
-static int dm9000_phy_read(struct net_device *dev, int phyaddr_unsused, int reg);
-static void dm9000_phy_write(struct net_device *dev, int phyaddr_unused, int reg,
- int value);
-
-static void dm9000_read_eeprom(board_info_t *, int addr, u8 *to);
-static void dm9000_write_eeprom(board_info_t *, int addr, u8 *dp);
-static void dm9000_rx(struct net_device *);
-static void dm9000_hash_table(struct net_device *);
-
/* DM9000 network board routine ---------------------------- */
static void
}
}
+static void dm9000_schedule_poll(board_info_t *db)
+{
+ if (db->type == TYPE_DM9000E)
+ schedule_delayed_work(&db->phy_poll, HZ * 2);
+}
+
+static int dm9000_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
+{
+ board_info_t *dm = to_dm9000_board(dev);
-/* Our watchdog timed out. Called by the networking layer */
-static void dm9000_timeout(struct net_device *dev)
+ if (!netif_running(dev))
+ return -EINVAL;
+
+ return generic_mii_ioctl(&dm->mii, if_mii(req), cmd, NULL);
+}
+
+static unsigned int
+dm9000_read_locked(board_info_t *db, int reg)
{
- board_info_t *db = (board_info_t *) dev->priv;
- u8 reg_save;
unsigned long flags;
+ unsigned int ret;
- /* Save previous register address */
- reg_save = readb(db->io_addr);
- spin_lock_irqsave(&db->lock,flags);
+ spin_lock_irqsave(&db->lock, flags);
+ ret = ior(db, reg);
+ spin_unlock_irqrestore(&db->lock, flags);
- netif_stop_queue(dev);
- dm9000_reset(db);
- dm9000_init_dm9000(dev);
- /* We can accept TX packets again */
- dev->trans_start = jiffies;
- netif_wake_queue(dev);
+ return ret;
+}
- /* Restore previous register address */
- writeb(reg_save, db->io_addr);
- spin_unlock_irqrestore(&db->lock,flags);
+static int dm9000_wait_eeprom(board_info_t *db)
+{
+ unsigned int status;
+ int timeout = 8; /* wait max 8msec */
+
+ /* The DM9000 data sheets say we should be able to
+ * poll the ERRE bit in EPCR to wait for the EEPROM
+ * operation. From testing several chips, this bit
+ * does not seem to work.
+ *
+ * We attempt to use the bit, but fall back to the
+ * timeout (which is why we do not return an error
+ * on expiry) to say that the EEPROM operation has
+ * completed.
+ */
+
+ while (1) {
+ status = dm9000_read_locked(db, DM9000_EPCR);
+
+ if ((status & EPCR_ERRE) == 0)
+ break;
+
+ msleep(1);
+
+ if (timeout-- < 0) {
+ dev_dbg(db->dev, "timeout waiting EEPROM\n");
+ break;
+ }
+ }
+
+ return 0;
}
-#ifdef CONFIG_NET_POLL_CONTROLLER
/*
- *Used by netconsole
+ * Read a word data from EEPROM
*/
-static void dm9000_poll_controller(struct net_device *dev)
+static void
+dm9000_read_eeprom(board_info_t *db, int offset, u8 *to)
{
- disable_irq(dev->irq);
- dm9000_interrupt(dev->irq,dev);
- enable_irq(dev->irq);
+ unsigned long flags;
+
+ if (db->flags & DM9000_PLATF_NO_EEPROM) {
+ to[0] = 0xff;
+ to[1] = 0xff;
+ return;
+ }
+
+ mutex_lock(&db->addr_lock);
+
+ spin_lock_irqsave(&db->lock, flags);
+
+ iow(db, DM9000_EPAR, offset);
+ iow(db, DM9000_EPCR, EPCR_ERPRR);
+
+ spin_unlock_irqrestore(&db->lock, flags);
+
+ dm9000_wait_eeprom(db);
+
+ /* delay for at-least 150uS */
+ msleep(1);
+
+ spin_lock_irqsave(&db->lock, flags);
+
+ iow(db, DM9000_EPCR, 0x0);
+
+ to[0] = ior(db, DM9000_EPDRL);
+ to[1] = ior(db, DM9000_EPDRH);
+
+ spin_unlock_irqrestore(&db->lock, flags);
+
+ mutex_unlock(&db->addr_lock);
}
-#endif
-static int dm9000_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
+/*
+ * Write a word data to SROM
+ */
+static void
+dm9000_write_eeprom(board_info_t *db, int offset, u8 *data)
{
- board_info_t *dm = to_dm9000_board(dev);
+ unsigned long flags;
- if (!netif_running(dev))
- return -EINVAL;
+ if (db->flags & DM9000_PLATF_NO_EEPROM)
+ return;
- return generic_mii_ioctl(&dm->mii, if_mii(req), cmd, NULL);
+ mutex_lock(&db->addr_lock);
+
+ spin_lock_irqsave(&db->lock, flags);
+ iow(db, DM9000_EPAR, offset);
+ iow(db, DM9000_EPDRH, data[1]);
+ iow(db, DM9000_EPDRL, data[0]);
+ iow(db, DM9000_EPCR, EPCR_WEP | EPCR_ERPRW);
+ spin_unlock_irqrestore(&db->lock, flags);
+
+ dm9000_wait_eeprom(db);
+
+ mdelay(1); /* wait at least 150uS to clear */
+
+ spin_lock_irqsave(&db->lock, flags);
+ iow(db, DM9000_EPCR, 0);
+ spin_unlock_irqrestore(&db->lock, flags);
+
+ mutex_unlock(&db->addr_lock);
}
/* ethtool ops */
return mii_nway_restart(&dm->mii);
}
+static uint32_t dm9000_get_rx_csum(struct net_device *dev)
+{
+ board_info_t *dm = to_dm9000_board(dev);
+ return dm->rx_csum;
+}
+
+static int dm9000_set_rx_csum_unlocked(struct net_device *dev, uint32_t data)
+{
+ board_info_t *dm = to_dm9000_board(dev);
+
+ if (dm->can_csum) {
+ dm->rx_csum = data;
+ iow(dm, DM9000_RCSR, dm->rx_csum ? RCSR_CSUM : 0);
+
+ return 0;
+ }
+
+ return -EOPNOTSUPP;
+}
+
+static int dm9000_set_rx_csum(struct net_device *dev, uint32_t data)
+{
+ board_info_t *dm = to_dm9000_board(dev);
+ unsigned long flags;
+ int ret;
+
+ spin_lock_irqsave(&dm->lock, flags);
+ ret = dm9000_set_rx_csum_unlocked(dev, data);
+ spin_unlock_irqrestore(&dm->lock, flags);
+
+ return ret;
+}
+
+static int dm9000_set_tx_csum(struct net_device *dev, uint32_t data)
+{
+ board_info_t *dm = to_dm9000_board(dev);
+ int ret = -EOPNOTSUPP;
+
+ if (dm->can_csum)
+ ret = ethtool_op_set_tx_csum(dev, data);
+ return ret;
+}
+
static u32 dm9000_get_link(struct net_device *dev)
{
board_info_t *dm = to_dm9000_board(dev);
- return mii_link_ok(&dm->mii);
+ u32 ret;
+
+ if (dm->flags & DM9000_PLATF_EXT_PHY)
+ ret = mii_link_ok(&dm->mii);
+ else
+ ret = dm9000_read_locked(dm, DM9000_NSR) & NSR_LINKST ? 1 : 0;
+
+ return ret;
}
#define DM_EEPROM_MAGIC (0x444D394B)
return 0;
}
+static void dm9000_get_wol(struct net_device *dev, struct ethtool_wolinfo *w)
+{
+ board_info_t *dm = to_dm9000_board(dev);
+
+ memset(w, 0, sizeof(struct ethtool_wolinfo));
+
+ /* note, we could probably support wake-phy too */
+ w->supported = dm->wake_supported ? WAKE_MAGIC : 0;
+ w->wolopts = dm->wake_state;
+}
+
+static int dm9000_set_wol(struct net_device *dev, struct ethtool_wolinfo *w)
+{
+ board_info_t *dm = to_dm9000_board(dev);
+ unsigned long flags;
+ u32 opts = w->wolopts;
+ u32 wcr = 0;
+
+ if (!dm->wake_supported)
+ return -EOPNOTSUPP;
+
+ if (opts & ~WAKE_MAGIC)
+ return -EINVAL;
+
+ if (opts & WAKE_MAGIC)
+ wcr |= WCR_MAGICEN;
+
+ mutex_lock(&dm->addr_lock);
+
+ spin_lock_irqsave(&dm->lock, flags);
+ iow(dm, DM9000_WCR, wcr);
+ spin_unlock_irqrestore(&dm->lock, flags);
+
+ mutex_unlock(&dm->addr_lock);
+
+ if (dm->wake_state != opts) {
+ /* change in wol state, update IRQ state */
+
+ if (!dm->wake_state)
+ set_irq_wake(dm->irq_wake, 1);
+ else if (dm->wake_state & !opts)
+ set_irq_wake(dm->irq_wake, 0);
+ }
+
+ dm->wake_state = opts;
+ return 0;
+}
+
static const struct ethtool_ops dm9000_ethtool_ops = {
.get_drvinfo = dm9000_get_drvinfo,
.get_settings = dm9000_get_settings,
.set_msglevel = dm9000_set_msglevel,
.nway_reset = dm9000_nway_reset,
.get_link = dm9000_get_link,
+ .get_wol = dm9000_get_wol,
+ .set_wol = dm9000_set_wol,
.get_eeprom_len = dm9000_get_eeprom_len,
.get_eeprom = dm9000_get_eeprom,
.set_eeprom = dm9000_set_eeprom,
+ .get_rx_csum = dm9000_get_rx_csum,
+ .set_rx_csum = dm9000_set_rx_csum,
+ .get_tx_csum = ethtool_op_get_tx_csum,
+ .set_tx_csum = dm9000_set_tx_csum,
};
+static void dm9000_show_carrier(board_info_t *db,
+ unsigned carrier, unsigned nsr)
+{
+ struct net_device *ndev = db->ndev;
+ unsigned ncr = dm9000_read_locked(db, DM9000_NCR);
+
+ if (carrier)
+ dev_info(db->dev, "%s: link up, %dMbps, %s-duplex, no LPA\n",
+ ndev->name, (nsr & NSR_SPEED) ? 10 : 100,
+ (ncr & NCR_FDX) ? "full" : "half");
+ else
+ dev_info(db->dev, "%s: link down\n", ndev->name);
+}
+
+static void
+dm9000_poll_work(struct work_struct *w)
+{
+ struct delayed_work *dw = to_delayed_work(w);
+ board_info_t *db = container_of(dw, board_info_t, phy_poll);
+ struct net_device *ndev = db->ndev;
+
+ if (db->flags & DM9000_PLATF_SIMPLE_PHY &&
+ !(db->flags & DM9000_PLATF_EXT_PHY)) {
+ unsigned nsr = dm9000_read_locked(db, DM9000_NSR);
+ unsigned old_carrier = netif_carrier_ok(ndev) ? 1 : 0;
+ unsigned new_carrier;
+
+ new_carrier = (nsr & NSR_LINKST) ? 1 : 0;
+
+ if (old_carrier != new_carrier) {
+ if (netif_msg_link(db))
+ dm9000_show_carrier(db, new_carrier, nsr);
+
+ if (!new_carrier)
+ netif_carrier_off(ndev);
+ else
+ netif_carrier_on(ndev);
+ }
+ } else
+ mii_check_media(&db->mii, netif_msg_link(db), 0);
+
+ if (netif_running(ndev))
+ dm9000_schedule_poll(db);
+}
/* dm9000_release_board
*
static void
dm9000_release_board(struct platform_device *pdev, struct board_info *db)
{
- if (db->data_res == NULL) {
- if (db->addr_res != NULL)
- release_mem_region((unsigned long)db->io_addr, 4);
- return;
- }
-
/* unmap our resources */
iounmap(db->io_addr);
/* release the resources */
- if (db->data_req != NULL) {
- release_resource(db->data_req);
- kfree(db->data_req);
- }
+ release_resource(db->data_req);
+ kfree(db->data_req);
- if (db->addr_req != NULL) {
- release_resource(db->addr_req);
- kfree(db->addr_req);
- }
+ release_resource(db->addr_req);
+ kfree(db->addr_req);
}
-#define res_size(_r) (((_r)->end - (_r)->start) + 1)
+static unsigned char dm9000_type_to_char(enum dm9000_type type)
+{
+ switch (type) {
+ case TYPE_DM9000E: return 'e';
+ case TYPE_DM9000A: return 'a';
+ case TYPE_DM9000B: return 'b';
+ }
+
+ return '?';
+}
/*
- * Search DM9000 board, allocate space and register it
+ * Set DM9000 multicast address
*/
-static int
-dm9000_probe(struct platform_device *pdev)
+static void
+dm9000_hash_table_unlocked(struct net_device *dev)
{
- struct dm9000_plat_data *pdata = pdev->dev.platform_data;
- struct board_info *db; /* Point a board information structure */
- struct net_device *ndev;
- const unsigned char *mac_src;
- unsigned long base;
- int ret = 0;
- int iosize;
- int i;
- u32 id_val;
+ board_info_t *db = netdev_priv(dev);
+ struct netdev_hw_addr *ha;
+ int i, oft;
+ u32 hash_val;
+ u16 hash_table[4];
+ u8 rcr = RCR_DIS_LONG | RCR_DIS_CRC | RCR_RXEN;
- /* Init network device */
- ndev = alloc_etherdev(sizeof (struct board_info));
- if (!ndev) {
- dev_err(&pdev->dev, "could not allocate device.\n");
- return -ENOMEM;
- }
+ dm9000_dbg(db, 1, "entering %s\n", __func__);
- SET_NETDEV_DEV(ndev, &pdev->dev);
+ for (i = 0, oft = DM9000_PAR; i < 6; i++, oft++)
+ iow(db, oft, dev->dev_addr[i]);
- dev_dbg(&pdev->dev, "dm9000_probe()");
+ /* Clear Hash Table */
+ for (i = 0; i < 4; i++)
+ hash_table[i] = 0x0;
- /* setup board info structure */
- db = (struct board_info *) ndev->priv;
- memset(db, 0, sizeof (*db));
+ /* broadcast address */
+ hash_table[3] = 0x8000;
- db->dev = &pdev->dev;
-
- spin_lock_init(&db->lock);
- mutex_init(&db->addr_lock);
-
- if (pdev->num_resources < 2) {
- ret = -ENODEV;
- goto out;
- } else if (pdev->num_resources == 2) {
- base = pdev->resource[0].start;
-
- if (!request_mem_region(base, 4, ndev->name)) {
- ret = -EBUSY;
- goto out;
- }
-
- ndev->base_addr = base;
- ndev->irq = pdev->resource[1].start;
- db->io_addr = (void __iomem *)base;
- db->io_data = (void __iomem *)(base + 4);
-
- /* ensure at least we have a default set of IO routines */
- dm9000_set_io(db, 2);
-
- } else {
- db->addr_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- db->data_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
- db->irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-
- if (db->addr_res == NULL || db->data_res == NULL ||
- db->irq_res == NULL) {
- dev_err(db->dev, "insufficient resources\n");
- ret = -ENOENT;
- goto out;
- }
-
- i = res_size(db->addr_res);
- db->addr_req = request_mem_region(db->addr_res->start, i,
- pdev->name);
-
- if (db->addr_req == NULL) {
- dev_err(db->dev, "cannot claim address reg area\n");
- ret = -EIO;
- goto out;
- }
-
- db->io_addr = ioremap(db->addr_res->start, i);
-
- if (db->io_addr == NULL) {
- dev_err(db->dev, "failed to ioremap address reg\n");
- ret = -EINVAL;
- goto out;
- }
-
- iosize = res_size(db->data_res);
- db->data_req = request_mem_region(db->data_res->start, iosize,
- pdev->name);
-
- if (db->data_req == NULL) {
- dev_err(db->dev, "cannot claim data reg area\n");
- ret = -EIO;
- goto out;
- }
-
- db->io_data = ioremap(db->data_res->start, iosize);
-
- if (db->io_data == NULL) {
- dev_err(db->dev,"failed to ioremap data reg\n");
- ret = -EINVAL;
- goto out;
- }
-
- /* fill in parameters for net-dev structure */
-
- ndev->base_addr = (unsigned long)db->io_addr;
- ndev->irq = db->irq_res->start;
-
- /* ensure at least we have a default set of IO routines */
- dm9000_set_io(db, iosize);
- }
-
- /* check to see if anything is being over-ridden */
- if (pdata != NULL) {
- /* check to see if the driver wants to over-ride the
- * default IO width */
-
- if (pdata->flags & DM9000_PLATF_8BITONLY)
- dm9000_set_io(db, 1);
-
- if (pdata->flags & DM9000_PLATF_16BITONLY)
- dm9000_set_io(db, 2);
-
- if (pdata->flags & DM9000_PLATF_32BITONLY)
- dm9000_set_io(db, 4);
-
- /* check to see if there are any IO routine
- * over-rides */
-
- if (pdata->inblk != NULL)
- db->inblk = pdata->inblk;
-
- if (pdata->outblk != NULL)
- db->outblk = pdata->outblk;
-
- if (pdata->dumpblk != NULL)
- db->dumpblk = pdata->dumpblk;
-
- db->flags = pdata->flags;
- }
-
- dm9000_reset(db);
-
- /* try two times, DM9000 sometimes gets the first read wrong */
- for (i = 0; i < 8; i++) {
- id_val = ior(db, DM9000_VIDL);
- id_val |= (u32)ior(db, DM9000_VIDH) << 8;
- id_val |= (u32)ior(db, DM9000_PIDL) << 16;
- id_val |= (u32)ior(db, DM9000_PIDH) << 24;
-
- if (id_val == DM9000_ID)
- break;
- dev_err(db->dev, "read wrong id 0x%08x\n", id_val);
- }
-
- if (id_val != DM9000_ID) {
- dev_err(db->dev, "wrong id: 0x%08x\n", id_val);
- ret = -ENODEV;
- goto out;
- }
-
- /* from this point we assume that we have found a DM9000 */
-
- /* driver system function */
- ether_setup(ndev);
-
- ndev->open = &dm9000_open;
- ndev->hard_start_xmit = &dm9000_start_xmit;
- ndev->tx_timeout = &dm9000_timeout;
- ndev->watchdog_timeo = msecs_to_jiffies(watchdog);
- ndev->stop = &dm9000_stop;
- ndev->set_multicast_list = &dm9000_hash_table;
- ndev->ethtool_ops = &dm9000_ethtool_ops;
- ndev->do_ioctl = &dm9000_ioctl;
-
-#ifdef CONFIG_NET_POLL_CONTROLLER
- ndev->poll_controller = &dm9000_poll_controller;
-#endif
-
- db->msg_enable = NETIF_MSG_LINK;
- db->mii.phy_id_mask = 0x1f;
- db->mii.reg_num_mask = 0x1f;
- db->mii.force_media = 0;
- db->mii.full_duplex = 0;
- db->mii.dev = ndev;
- db->mii.mdio_read = dm9000_phy_read;
- db->mii.mdio_write = dm9000_phy_write;
-
- mac_src = "eeprom";
-
- /* try reading the node address from the attached EEPROM */
- for (i = 0; i < 6; i += 2)
- dm9000_read_eeprom(db, i / 2, ndev->dev_addr+i);
+ if (dev->flags & IFF_PROMISC)
+ rcr |= RCR_PRMSC;
- if (!is_valid_ether_addr(ndev->dev_addr)) {
- /* try reading from mac */
+ if (dev->flags & IFF_ALLMULTI)
+ rcr |= RCR_ALL;
- mac_src = "chip";
- for (i = 0; i < 6; i++)
- ndev->dev_addr[i] = ior(db, i+DM9000_PAR);
+ /* the multicast address in Hash Table : 64 bits */
+ netdev_for_each_mc_addr(ha, dev) {
+ hash_val = ether_crc_le(6, ha->addr) & 0x3f;
+ hash_table[hash_val / 16] |= (u16) 1 << (hash_val % 16);
}
- if (!is_valid_ether_addr(ndev->dev_addr))
- dev_warn(db->dev, "%s: Invalid ethernet MAC address. Please "
- "set using ifconfig\n", ndev->name);
-
- platform_set_drvdata(pdev, ndev);
- ret = register_netdev(ndev);
-
- if (ret == 0) {
- DECLARE_MAC_BUF(mac);
- printk("%s: dm9000 at %p,%p IRQ %d MAC: %s (%s)\n",
- ndev->name, db->io_addr, db->io_data, ndev->irq,
- print_mac(mac, ndev->dev_addr), mac_src);
+ /* Write the hash table to MAC MD table */
+ for (i = 0, oft = DM9000_MAR; i < 4; i++) {
+ iow(db, oft++, hash_table[i]);
+ iow(db, oft++, hash_table[i] >> 8);
}
- return 0;
-
-out:
- dev_err(db->dev, "not found (%d).\n", ret);
-
- dm9000_release_board(pdev, db);
- free_netdev(ndev);
- return ret;
+ iow(db, DM9000_RCR, rcr);
}
-/*
- * Open the interface.
- * The interface is opened whenever "ifconfig" actives it.
- */
-static int
-dm9000_open(struct net_device *dev)
+static void
+dm9000_hash_table(struct net_device *dev)
{
- board_info_t *db = (board_info_t *) dev->priv;
- unsigned long irqflags = db->irq_res->flags & IRQF_TRIGGER_MASK;
-
- if (netif_msg_ifup(db))
- dev_dbg(db->dev, "enabling %s\n", dev->name);
-
- /* If there is no IRQ type specified, default to something that
- * may work, and tell the user that this is a problem */
-
- if (irqflags == IRQF_TRIGGER_NONE) {
- dev_warn(db->dev, "WARNING: no IRQ resource flags set.\n");
- irqflags = DEFAULT_TRIGGER;
- }
-
- irqflags |= IRQF_SHARED;
-
- if (request_irq(dev->irq, &dm9000_interrupt, irqflags, dev->name, dev))
- return -EAGAIN;
-
- /* Initialize DM9000 board */
- dm9000_reset(db);
- dm9000_init_dm9000(dev);
-
- /* Init driver variable */
- db->dbug_cnt = 0;
-
- mii_check_media(&db->mii, netif_msg_link(db), 1);
- netif_start_queue(dev);
+ board_info_t *db = netdev_priv(dev);
+ unsigned long flags;
- return 0;
+ spin_lock_irqsave(&db->lock, flags);
+ dm9000_hash_table_unlocked(dev);
+ spin_unlock_irqrestore(&db->lock, flags);
}
/*
- * Initilize dm9000 board
+ * Initialize dm9000 board
*/
static void
dm9000_init_dm9000(struct net_device *dev)
{
- board_info_t *db = (board_info_t *) dev->priv;
+ board_info_t *db = netdev_priv(dev);
+ unsigned int imr;
+ unsigned int ncr;
dm9000_dbg(db, 1, "entering %s\n", __func__);
/* I/O mode */
db->io_mode = ior(db, DM9000_ISR) >> 6; /* ISR bit7:6 keeps I/O mode */
+ /* Checksum mode */
+ dm9000_set_rx_csum_unlocked(dev, db->rx_csum);
+
/* GPIO0 on pre-activate PHY */
iow(db, DM9000_GPR, 0); /* REG_1F bit0 activate phyxcer */
iow(db, DM9000_GPCR, GPCR_GEP_CNTL); /* Let GPIO0 output */
iow(db, DM9000_GPR, 0); /* Enable PHY */
- if (db->flags & DM9000_PLATF_EXT_PHY)
- iow(db, DM9000_NCR, NCR_EXT_PHY);
+ ncr = (db->flags & DM9000_PLATF_EXT_PHY) ? NCR_EXT_PHY : 0;
+
+ /* if wol is needed, then always set NCR_WAKEEN otherwise we end
+ * up dumping the wake events if we disable this. There is already
+ * a wake-mask in DM9000_WCR */
+ if (db->wake_supported)
+ ncr |= NCR_WAKEEN;
+
+ iow(db, DM9000_NCR, ncr);
/* Program operating register */
iow(db, DM9000_TCR, 0); /* TX Polling clear */
iow(db, DM9000_ISR, ISR_CLR_STATUS); /* Clear interrupt status */
/* Set address filter table */
- dm9000_hash_table(dev);
+ dm9000_hash_table_unlocked(dev);
+
+ imr = IMR_PAR | IMR_PTM | IMR_PRM;
+ if (db->type != TYPE_DM9000E)
+ imr |= IMR_LNKCHNG;
+
+ db->imr_all = imr;
/* Enable TX/RX interrupt mask */
- iow(db, DM9000_IMR, IMR_PAR | IMR_PTM | IMR_PRM);
+ iow(db, DM9000_IMR, imr);
/* Init Driver variable */
db->tx_pkt_cnt = 0;
db->queue_pkt_len = 0;
- dev->trans_start = 0;
+ dev->trans_start = jiffies;
+}
+
+/* Our watchdog timed out. Called by the networking layer */
+static void dm9000_timeout(struct net_device *dev)
+{
+ board_info_t *db = netdev_priv(dev);
+ u8 reg_save;
+ unsigned long flags;
+
+ /* Save previous register address */
+ reg_save = readb(db->io_addr);
+ spin_lock_irqsave(&db->lock, flags);
+
+ netif_stop_queue(dev);
+ dm9000_reset(db);
+ dm9000_init_dm9000(dev);
+ /* We can accept TX packets again */
+ dev->trans_start = jiffies; /* prevent tx timeout */
+ netif_wake_queue(dev);
+
+ /* Restore previous register address */
+ writeb(reg_save, db->io_addr);
+ spin_unlock_irqrestore(&db->lock, flags);
+}
+
+static void dm9000_send_packet(struct net_device *dev,
+ int ip_summed,
+ u16 pkt_len)
+{
+ board_info_t *dm = to_dm9000_board(dev);
+
+ /* The DM9000 is not smart enough to leave fragmented packets alone. */
+ if (dm->ip_summed != ip_summed) {
+ if (ip_summed == CHECKSUM_NONE)
+ iow(dm, DM9000_TCCR, 0);
+ else
+ iow(dm, DM9000_TCCR, TCCR_IP | TCCR_UDP | TCCR_TCP);
+ dm->ip_summed = ip_summed;
+ }
+
+ /* Set TX length to DM9000 */
+ iow(dm, DM9000_TXPLL, pkt_len);
+ iow(dm, DM9000_TXPLH, pkt_len >> 8);
+
+ /* Issue TX polling command */
+ iow(dm, DM9000_TCR, TCR_TXREQ); /* Cleared after TX complete */
}
/*
dm9000_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
unsigned long flags;
- board_info_t *db = (board_info_t *) dev->priv;
+ board_info_t *db = netdev_priv(dev);
dm9000_dbg(db, 3, "%s:\n", __func__);
if (db->tx_pkt_cnt > 1)
- return 1;
+ return NETDEV_TX_BUSY;
spin_lock_irqsave(&db->lock, flags);
db->tx_pkt_cnt++;
/* TX control: First packet immediately send, second packet queue */
if (db->tx_pkt_cnt == 1) {
- /* Set TX length to DM9000 */
- iow(db, DM9000_TXPLL, skb->len);
- iow(db, DM9000_TXPLH, skb->len >> 8);
-
- /* Issue TX polling command */
- iow(db, DM9000_TCR, TCR_TXREQ); /* Cleared after TX complete */
-
- dev->trans_start = jiffies; /* save the time stamp */
+ dm9000_send_packet(dev, skb->ip_summed, skb->len);
} else {
/* Second packet */
db->queue_pkt_len = skb->len;
+ db->queue_ip_summed = skb->ip_summed;
netif_stop_queue(dev);
}
/* free this SKB */
dev_kfree_skb(skb);
- return 0;
-}
-
-static void
-dm9000_shutdown(struct net_device *dev)
-{
- board_info_t *db = (board_info_t *) dev->priv;
-
- /* RESET device */
- dm9000_phy_write(dev, 0, MII_BMCR, BMCR_RESET); /* PHY RESET */
- iow(db, DM9000_GPR, 0x01); /* Power-Down PHY */
- iow(db, DM9000_IMR, IMR_PAR); /* Disable all interrupt */
- iow(db, DM9000_RCR, 0x00); /* Disable RX */
-}
-
-/*
- * Stop the interface.
- * The interface is stopped when it is brought.
- */
-static int
-dm9000_stop(struct net_device *ndev)
-{
- board_info_t *db = (board_info_t *) ndev->priv;
-
- if (netif_msg_ifdown(db))
- dev_dbg(db->dev, "shutting down %s\n", ndev->name);
-
- netif_stop_queue(ndev);
- netif_carrier_off(ndev);
-
- /* free interrupt */
- free_irq(ndev->irq, ndev);
-
- dm9000_shutdown(ndev);
-
- return 0;
+ return NETDEV_TX_OK;
}
/*
* receive the packet to upper layer, free the transmitted packet
*/
-static void
-dm9000_tx_done(struct net_device *dev, board_info_t * db)
+static void dm9000_tx_done(struct net_device *dev, board_info_t *db)
{
int tx_status = ior(db, DM9000_NSR); /* Got TX status */
dev_dbg(db->dev, "tx done, NSR %02x\n", tx_status);
/* Queue packet check & send */
- if (db->tx_pkt_cnt > 0) {
- iow(db, DM9000_TXPLL, db->queue_pkt_len);
- iow(db, DM9000_TXPLH, db->queue_pkt_len >> 8);
- iow(db, DM9000_TCR, TCR_TXREQ);
- dev->trans_start = jiffies;
- }
+ if (db->tx_pkt_cnt > 0)
+ dm9000_send_packet(dev, db->queue_ip_summed,
+ db->queue_pkt_len);
netif_wake_queue(dev);
}
}
-static irqreturn_t
-dm9000_interrupt(int irq, void *dev_id)
-{
- struct net_device *dev = dev_id;
- board_info_t *db = (board_info_t *) dev->priv;
- int int_status;
- u8 reg_save;
-
- dm9000_dbg(db, 3, "entering %s\n", __func__);
-
- /* A real interrupt coming */
-
- spin_lock(&db->lock);
-
- /* Save previous register address */
- reg_save = readb(db->io_addr);
-
- /* Disable all interrupts */
- iow(db, DM9000_IMR, IMR_PAR);
-
- /* Got DM9000 interrupt status */
- int_status = ior(db, DM9000_ISR); /* Got ISR */
- iow(db, DM9000_ISR, int_status); /* Clear ISR status */
-
- if (netif_msg_intr(db))
- dev_dbg(db->dev, "interrupt status %02x\n", int_status);
-
- /* Received the coming packet */
- if (int_status & ISR_PRS)
- dm9000_rx(dev);
-
- /* Trnasmit Interrupt check */
- if (int_status & ISR_PTS)
- dm9000_tx_done(dev, db);
-
- /* Re-enable interrupt mask */
- iow(db, DM9000_IMR, IMR_PAR | IMR_PTM | IMR_PRM);
-
- /* Restore previous register address */
- writeb(reg_save, db->io_addr);
-
- spin_unlock(&db->lock);
-
- return IRQ_HANDLED;
-}
-
struct dm9000_rxhdr {
u8 RxPktReady;
u8 RxStatus;
static void
dm9000_rx(struct net_device *dev)
{
- board_info_t *db = (board_info_t *) dev->priv;
+ board_info_t *db = netdev_priv(dev);
struct dm9000_rxhdr rxhdr;
struct sk_buff *skb;
u8 rxbyte, *rdptr;
rxbyte = readb(db->io_data);
/* Status check: this byte must be 0 or 1 */
- if (rxbyte > DM9000_PKT_RDY) {
+ if (rxbyte & DM9000_PKT_ERR) {
dev_warn(db->dev, "status check fail: %d\n", rxbyte);
iow(db, DM9000_RCR, 0x00); /* Stop Device */
iow(db, DM9000_ISR, IMR_PAR); /* Stop INT request */
return;
}
- if (rxbyte != DM9000_PKT_RDY)
+ if (!(rxbyte & DM9000_PKT_RDY))
return;
/* A packet ready now & Get status/length */
dev_dbg(db->dev, "RST: RX Len:%x\n", RxLen);
}
- if (rxhdr.RxStatus & 0xbf) {
+ /* rxhdr.RxStatus is identical to RSR register. */
+ if (rxhdr.RxStatus & (RSR_FOE | RSR_CE | RSR_AE |
+ RSR_PLE | RSR_RWTO |
+ RSR_LCS | RSR_RF)) {
GoodPacket = false;
- if (rxhdr.RxStatus & 0x01) {
+ if (rxhdr.RxStatus & RSR_FOE) {
if (netif_msg_rx_err(db))
dev_dbg(db->dev, "fifo error\n");
dev->stats.rx_fifo_errors++;
}
- if (rxhdr.RxStatus & 0x02) {
+ if (rxhdr.RxStatus & RSR_CE) {
if (netif_msg_rx_err(db))
dev_dbg(db->dev, "crc error\n");
dev->stats.rx_crc_errors++;
}
- if (rxhdr.RxStatus & 0x80) {
+ if (rxhdr.RxStatus & RSR_RF) {
if (netif_msg_rx_err(db))
dev_dbg(db->dev, "length error\n");
dev->stats.rx_length_errors++;
}
/* Move data from DM9000 */
- if (GoodPacket
- && ((skb = dev_alloc_skb(RxLen + 4)) != NULL)) {
+ if (GoodPacket &&
+ ((skb = dev_alloc_skb(RxLen + 4)) != NULL)) {
skb_reserve(skb, 2);
rdptr = (u8 *) skb_put(skb, RxLen - 4);
/* Pass to upper layer */
skb->protocol = eth_type_trans(skb, dev);
+ if (db->rx_csum) {
+ if ((((rxbyte & 0x1c) << 3) & rxbyte) == 0)
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ else
+ skb->ip_summed = CHECKSUM_NONE;
+ }
netif_rx(skb);
dev->stats.rx_packets++;
(db->dumpblk)(db->io_data, RxLen);
}
- } while (rxbyte == DM9000_PKT_RDY);
+ } while (rxbyte & DM9000_PKT_RDY);
}
-static unsigned int
-dm9000_read_locked(board_info_t *db, int reg)
+static irqreturn_t dm9000_interrupt(int irq, void *dev_id)
{
+ struct net_device *dev = dev_id;
+ board_info_t *db = netdev_priv(dev);
+ int int_status;
unsigned long flags;
- unsigned int ret;
+ u8 reg_save;
+
+ dm9000_dbg(db, 3, "entering %s\n", __func__);
+ /* A real interrupt coming */
+
+ /* holders of db->lock must always block IRQs */
spin_lock_irqsave(&db->lock, flags);
- ret = ior(db, reg);
- spin_unlock_irqrestore(&db->lock, flags);
- return ret;
-}
+ /* Save previous register address */
+ reg_save = readb(db->io_addr);
-static int dm9000_wait_eeprom(board_info_t *db)
-{
- unsigned int status;
- int timeout = 8; /* wait max 8msec */
+ /* Disable all interrupts */
+ iow(db, DM9000_IMR, IMR_PAR);
- /* The DM9000 data sheets say we should be able to
- * poll the ERRE bit in EPCR to wait for the EEPROM
- * operation. From testing several chips, this bit
- * does not seem to work.
- *
- * We attempt to use the bit, but fall back to the
- * timeout (which is why we do not return an error
- * on expiry) to say that the EEPROM operation has
- * completed.
- */
+ /* Got DM9000 interrupt status */
+ int_status = ior(db, DM9000_ISR); /* Got ISR */
+ iow(db, DM9000_ISR, int_status); /* Clear ISR status */
- while (1) {
- status = dm9000_read_locked(db, DM9000_EPCR);
+ if (netif_msg_intr(db))
+ dev_dbg(db->dev, "interrupt status %02x\n", int_status);
- if ((status & EPCR_ERRE) == 0)
- break;
+ /* Received the coming packet */
+ if (int_status & ISR_PRS)
+ dm9000_rx(dev);
- if (timeout-- < 0) {
- dev_dbg(db->dev, "timeout waiting EEPROM\n");
- break;
+ /* Trnasmit Interrupt check */
+ if (int_status & ISR_PTS)
+ dm9000_tx_done(dev, db);
+
+ if (db->type != TYPE_DM9000E) {
+ if (int_status & ISR_LNKCHNG) {
+ /* fire a link-change request */
+ schedule_delayed_work(&db->phy_poll, 1);
}
}
- return 0;
+ /* Re-enable interrupt mask */
+ iow(db, DM9000_IMR, db->imr_all);
+
+ /* Restore previous register address */
+ writeb(reg_save, db->io_addr);
+
+ spin_unlock_irqrestore(&db->lock, flags);
+
+ return IRQ_HANDLED;
}
-/*
- * Read a word data from EEPROM
- */
-static void
-dm9000_read_eeprom(board_info_t *db, int offset, u8 *to)
+static irqreturn_t dm9000_wol_interrupt(int irq, void *dev_id)
{
+ struct net_device *dev = dev_id;
+ board_info_t *db = netdev_priv(dev);
unsigned long flags;
-
- if (db->flags & DM9000_PLATF_NO_EEPROM) {
- to[0] = 0xff;
- to[1] = 0xff;
- return;
- }
-
- mutex_lock(&db->addr_lock);
+ unsigned nsr, wcr;
spin_lock_irqsave(&db->lock, flags);
- iow(db, DM9000_EPAR, offset);
- iow(db, DM9000_EPCR, EPCR_ERPRR);
+ nsr = ior(db, DM9000_NSR);
+ wcr = ior(db, DM9000_WCR);
- spin_unlock_irqrestore(&db->lock, flags);
-
- dm9000_wait_eeprom(db);
-
- /* delay for at-least 150uS */
- msleep(1);
+ dev_dbg(db->dev, "%s: NSR=0x%02x, WCR=0x%02x\n", __func__, nsr, wcr);
- spin_lock_irqsave(&db->lock, flags);
+ if (nsr & NSR_WAKEST) {
+ /* clear, so we can avoid */
+ iow(db, DM9000_NSR, NSR_WAKEST);
- iow(db, DM9000_EPCR, 0x0);
+ if (wcr & WCR_LINKST)
+ dev_info(db->dev, "wake by link status change\n");
+ if (wcr & WCR_SAMPLEST)
+ dev_info(db->dev, "wake by sample packet\n");
+ if (wcr & WCR_MAGICST )
+ dev_info(db->dev, "wake by magic packet\n");
+ if (!(wcr & (WCR_LINKST | WCR_SAMPLEST | WCR_MAGICST)))
+ dev_err(db->dev, "wake signalled with no reason? "
+ "NSR=0x%02x, WSR=0x%02x\n", nsr, wcr);
- to[0] = ior(db, DM9000_EPDRL);
- to[1] = ior(db, DM9000_EPDRH);
+ }
spin_unlock_irqrestore(&db->lock, flags);
- mutex_unlock(&db->addr_lock);
+ return (nsr & NSR_WAKEST) ? IRQ_HANDLED : IRQ_NONE;
}
+#ifdef CONFIG_NET_POLL_CONTROLLER
/*
- * Write a word data to SROM
+ *Used by netconsole
*/
-static void
-dm9000_write_eeprom(board_info_t *db, int offset, u8 *data)
+static void dm9000_poll_controller(struct net_device *dev)
{
- unsigned long flags;
-
- if (db->flags & DM9000_PLATF_NO_EEPROM)
- return;
-
- mutex_lock(&db->addr_lock);
-
- spin_lock_irqsave(&db->lock, flags);
- iow(db, DM9000_EPAR, offset);
- iow(db, DM9000_EPDRH, data[1]);
- iow(db, DM9000_EPDRL, data[0]);
- iow(db, DM9000_EPCR, EPCR_WEP | EPCR_ERPRW);
- spin_unlock_irqrestore(&db->lock, flags);
-
- dm9000_wait_eeprom(db);
-
- mdelay(1); /* wait at least 150uS to clear */
-
- spin_lock_irqsave(&db->lock, flags);
- iow(db, DM9000_EPCR, 0);
- spin_unlock_irqrestore(&db->lock, flags);
-
- mutex_unlock(&db->addr_lock);
+ disable_irq(dev->irq);
+ dm9000_interrupt(dev->irq, dev);
+ enable_irq(dev->irq);
}
+#endif
/*
- * Set DM9000 multicast address
+ * Open the interface.
+ * The interface is opened whenever "ifconfig" actives it.
*/
-static void
-dm9000_hash_table(struct net_device *dev)
+static int
+dm9000_open(struct net_device *dev)
{
- board_info_t *db = (board_info_t *) dev->priv;
- struct dev_mc_list *mcptr = dev->mc_list;
- int mc_cnt = dev->mc_count;
- int i, oft;
- u32 hash_val;
- u16 hash_table[4];
- u8 rcr = RCR_DIS_LONG | RCR_DIS_CRC | RCR_RXEN;
- unsigned long flags;
-
- dm9000_dbg(db, 1, "entering %s\n", __func__);
+ board_info_t *db = netdev_priv(dev);
+ unsigned long irqflags = db->irq_res->flags & IRQF_TRIGGER_MASK;
- spin_lock_irqsave(&db->lock, flags);
+ if (netif_msg_ifup(db))
+ dev_dbg(db->dev, "enabling %s\n", dev->name);
- for (i = 0, oft = DM9000_PAR; i < 6; i++, oft++)
- iow(db, oft, dev->dev_addr[i]);
+ /* If there is no IRQ type specified, default to something that
+ * may work, and tell the user that this is a problem */
- /* Clear Hash Table */
- for (i = 0; i < 4; i++)
- hash_table[i] = 0x0;
+ if (irqflags == IRQF_TRIGGER_NONE)
+ dev_warn(db->dev, "WARNING: no IRQ resource flags set.\n");
- /* broadcast address */
- hash_table[3] = 0x8000;
+ irqflags |= IRQF_SHARED;
- if (dev->flags & IFF_PROMISC)
- rcr |= RCR_PRMSC;
+ if (request_irq(dev->irq, dm9000_interrupt, irqflags, dev->name, dev))
+ return -EAGAIN;
- if (dev->flags & IFF_ALLMULTI)
- rcr |= RCR_ALL;
+ /* Initialize DM9000 board */
+ dm9000_reset(db);
+ dm9000_init_dm9000(dev);
- /* the multicast address in Hash Table : 64 bits */
- for (i = 0; i < mc_cnt; i++, mcptr = mcptr->next) {
- hash_val = ether_crc_le(6, mcptr->dmi_addr) & 0x3f;
- hash_table[hash_val / 16] |= (u16) 1 << (hash_val % 16);
- }
+ /* Init driver variable */
+ db->dbug_cnt = 0;
- /* Write the hash table to MAC MD table */
- for (i = 0, oft = DM9000_MAR; i < 4; i++) {
- iow(db, oft++, hash_table[i]);
- iow(db, oft++, hash_table[i] >> 8);
- }
+ mii_check_media(&db->mii, netif_msg_link(db), 1);
+ netif_start_queue(dev);
+
+ dm9000_schedule_poll(db);
- iow(db, DM9000_RCR, rcr);
- spin_unlock_irqrestore(&db->lock, flags);
+ return 0;
}
-
/*
* Sleep, either by using msleep() or if we are suspending, then
* use mdelay() to sleep.
static int
dm9000_phy_read(struct net_device *dev, int phy_reg_unused, int reg)
{
- board_info_t *db = (board_info_t *) dev->priv;
+ board_info_t *db = netdev_priv(dev);
unsigned long flags;
unsigned int reg_save;
int ret;
/* Fill the phyxcer register into REG_0C */
iow(db, DM9000_EPAR, DM9000_PHY | reg);
- iow(db, DM9000_EPCR, 0xc); /* Issue phyxcer read command */
+ iow(db, DM9000_EPCR, EPCR_ERPRR | EPCR_EPOS); /* Issue phyxcer read command */
writeb(reg_save, db->io_addr);
spin_unlock_irqrestore(&db->lock,flags);
spin_unlock_irqrestore(&db->lock,flags);
mutex_unlock(&db->addr_lock);
+
+ dm9000_dbg(db, 5, "phy_read[%02x] -> %04x\n", reg, ret);
return ret;
}
* Write a word to phyxcer
*/
static void
-dm9000_phy_write(struct net_device *dev, int phyaddr_unused, int reg, int value)
+dm9000_phy_write(struct net_device *dev,
+ int phyaddr_unused, int reg, int value)
{
- board_info_t *db = (board_info_t *) dev->priv;
+ board_info_t *db = netdev_priv(dev);
unsigned long flags;
unsigned long reg_save;
+ dm9000_dbg(db, 5, "phy_write[%02x] = %04x\n", reg, value);
mutex_lock(&db->addr_lock);
spin_lock_irqsave(&db->lock,flags);
iow(db, DM9000_EPDRL, value);
iow(db, DM9000_EPDRH, value >> 8);
- iow(db, DM9000_EPCR, 0xa); /* Issue phyxcer write command */
+ iow(db, DM9000_EPCR, EPCR_EPOS | EPCR_ERPRW); /* Issue phyxcer write command */
writeb(reg_save, db->io_addr);
spin_unlock_irqrestore(&db->lock, flags);
mutex_unlock(&db->addr_lock);
}
+static void
+dm9000_shutdown(struct net_device *dev)
+{
+ board_info_t *db = netdev_priv(dev);
+
+ /* RESET device */
+ dm9000_phy_write(dev, 0, MII_BMCR, BMCR_RESET); /* PHY RESET */
+ iow(db, DM9000_GPR, 0x01); /* Power-Down PHY */
+ iow(db, DM9000_IMR, IMR_PAR); /* Disable all interrupt */
+ iow(db, DM9000_RCR, 0x00); /* Disable RX */
+}
+
+/*
+ * Stop the interface.
+ * The interface is stopped when it is brought.
+ */
+static int
+dm9000_stop(struct net_device *ndev)
+{
+ board_info_t *db = netdev_priv(ndev);
+
+ if (netif_msg_ifdown(db))
+ dev_dbg(db->dev, "shutting down %s\n", ndev->name);
+
+ cancel_delayed_work_sync(&db->phy_poll);
+
+ netif_stop_queue(ndev);
+ netif_carrier_off(ndev);
+
+ /* free interrupt */
+ free_irq(ndev->irq, ndev);
+
+ dm9000_shutdown(ndev);
+
+ return 0;
+}
+
+static const struct net_device_ops dm9000_netdev_ops = {
+ .ndo_open = dm9000_open,
+ .ndo_stop = dm9000_stop,
+ .ndo_start_xmit = dm9000_start_xmit,
+ .ndo_tx_timeout = dm9000_timeout,
+ .ndo_set_multicast_list = dm9000_hash_table,
+ .ndo_do_ioctl = dm9000_ioctl,
+ .ndo_change_mtu = eth_change_mtu,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_set_mac_address = eth_mac_addr,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = dm9000_poll_controller,
+#endif
+};
+
+/*
+ * Search DM9000 board, allocate space and register it
+ */
+static int __devinit
+dm9000_probe(struct platform_device *pdev)
+{
+ struct dm9000_plat_data *pdata = pdev->dev.platform_data;
+ struct board_info *db; /* Point a board information structure */
+ struct net_device *ndev;
+ const unsigned char *mac_src;
+ int ret = 0;
+ int iosize;
+ int i;
+ u32 id_val;
+
+ /* Init network device */
+ ndev = alloc_etherdev(sizeof(struct board_info));
+ if (!ndev) {
+ dev_err(&pdev->dev, "could not allocate device.\n");
+ return -ENOMEM;
+ }
+
+ SET_NETDEV_DEV(ndev, &pdev->dev);
+
+ dev_dbg(&pdev->dev, "dm9000_probe()\n");
+
+ /* setup board info structure */
+ db = netdev_priv(ndev);
+
+ db->dev = &pdev->dev;
+ db->ndev = ndev;
+
+ spin_lock_init(&db->lock);
+ mutex_init(&db->addr_lock);
+
+ INIT_DELAYED_WORK(&db->phy_poll, dm9000_poll_work);
+
+ db->addr_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ db->data_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ db->irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+
+ if (db->addr_res == NULL || db->data_res == NULL ||
+ db->irq_res == NULL) {
+ dev_err(db->dev, "insufficient resources\n");
+ ret = -ENOENT;
+ goto out;
+ }
+
+ db->irq_wake = platform_get_irq(pdev, 1);
+ if (db->irq_wake >= 0) {
+ dev_dbg(db->dev, "wakeup irq %d\n", db->irq_wake);
+
+ ret = request_irq(db->irq_wake, dm9000_wol_interrupt,
+ IRQF_SHARED, dev_name(db->dev), ndev);
+ if (ret) {
+ dev_err(db->dev, "cannot get wakeup irq (%d)\n", ret);
+ } else {
+
+ /* test to see if irq is really wakeup capable */
+ ret = set_irq_wake(db->irq_wake, 1);
+ if (ret) {
+ dev_err(db->dev, "irq %d cannot set wakeup (%d)\n",
+ db->irq_wake, ret);
+ ret = 0;
+ } else {
+ set_irq_wake(db->irq_wake, 0);
+ db->wake_supported = 1;
+ }
+ }
+ }
+
+ iosize = resource_size(db->addr_res);
+ db->addr_req = request_mem_region(db->addr_res->start, iosize,
+ pdev->name);
+
+ if (db->addr_req == NULL) {
+ dev_err(db->dev, "cannot claim address reg area\n");
+ ret = -EIO;
+ goto out;
+ }
+
+ db->io_addr = ioremap(db->addr_res->start, iosize);
+
+ if (db->io_addr == NULL) {
+ dev_err(db->dev, "failed to ioremap address reg\n");
+ ret = -EINVAL;
+ goto out;
+ }
+
+ iosize = resource_size(db->data_res);
+ db->data_req = request_mem_region(db->data_res->start, iosize,
+ pdev->name);
+
+ if (db->data_req == NULL) {
+ dev_err(db->dev, "cannot claim data reg area\n");
+ ret = -EIO;
+ goto out;
+ }
+
+ db->io_data = ioremap(db->data_res->start, iosize);
+
+ if (db->io_data == NULL) {
+ dev_err(db->dev, "failed to ioremap data reg\n");
+ ret = -EINVAL;
+ goto out;
+ }
+
+ /* fill in parameters for net-dev structure */
+ ndev->base_addr = (unsigned long)db->io_addr;
+ ndev->irq = db->irq_res->start;
+
+ /* ensure at least we have a default set of IO routines */
+ dm9000_set_io(db, iosize);
+
+ /* check to see if anything is being over-ridden */
+ if (pdata != NULL) {
+ /* check to see if the driver wants to over-ride the
+ * default IO width */
+
+ if (pdata->flags & DM9000_PLATF_8BITONLY)
+ dm9000_set_io(db, 1);
+
+ if (pdata->flags & DM9000_PLATF_16BITONLY)
+ dm9000_set_io(db, 2);
+
+ if (pdata->flags & DM9000_PLATF_32BITONLY)
+ dm9000_set_io(db, 4);
+
+ /* check to see if there are any IO routine
+ * over-rides */
+
+ if (pdata->inblk != NULL)
+ db->inblk = pdata->inblk;
+
+ if (pdata->outblk != NULL)
+ db->outblk = pdata->outblk;
+
+ if (pdata->dumpblk != NULL)
+ db->dumpblk = pdata->dumpblk;
+
+ db->flags = pdata->flags;
+ }
+
+#ifdef CONFIG_DM9000_FORCE_SIMPLE_PHY_POLL
+ db->flags |= DM9000_PLATF_SIMPLE_PHY;
+#endif
+
+ dm9000_reset(db);
+
+ /* try multiple times, DM9000 sometimes gets the read wrong */
+ for (i = 0; i < 8; i++) {
+ id_val = ior(db, DM9000_VIDL);
+ id_val |= (u32)ior(db, DM9000_VIDH) << 8;
+ id_val |= (u32)ior(db, DM9000_PIDL) << 16;
+ id_val |= (u32)ior(db, DM9000_PIDH) << 24;
+
+ if (id_val == DM9000_ID)
+ break;
+ dev_err(db->dev, "read wrong id 0x%08x\n", id_val);
+ }
+
+ if (id_val != DM9000_ID) {
+ dev_err(db->dev, "wrong id: 0x%08x\n", id_val);
+ ret = -ENODEV;
+ goto out;
+ }
+
+ /* Identify what type of DM9000 we are working on */
+
+ id_val = ior(db, DM9000_CHIPR);
+ dev_dbg(db->dev, "dm9000 revision 0x%02x\n", id_val);
+
+ switch (id_val) {
+ case CHIPR_DM9000A:
+ db->type = TYPE_DM9000A;
+ break;
+ case CHIPR_DM9000B:
+ db->type = TYPE_DM9000B;
+ break;
+ default:
+ dev_dbg(db->dev, "ID %02x => defaulting to DM9000E\n", id_val);
+ db->type = TYPE_DM9000E;
+ }
+
+ /* dm9000a/b are capable of hardware checksum offload */
+ if (db->type == TYPE_DM9000A || db->type == TYPE_DM9000B) {
+ db->can_csum = 1;
+ db->rx_csum = 1;
+ ndev->features |= NETIF_F_IP_CSUM;
+ }
+
+ /* from this point we assume that we have found a DM9000 */
+
+ /* driver system function */
+ ether_setup(ndev);
+
+ ndev->netdev_ops = &dm9000_netdev_ops;
+ ndev->watchdog_timeo = msecs_to_jiffies(watchdog);
+ ndev->ethtool_ops = &dm9000_ethtool_ops;
+
+ db->msg_enable = NETIF_MSG_LINK;
+ db->mii.phy_id_mask = 0x1f;
+ db->mii.reg_num_mask = 0x1f;
+ db->mii.force_media = 0;
+ db->mii.full_duplex = 0;
+ db->mii.dev = ndev;
+ db->mii.mdio_read = dm9000_phy_read;
+ db->mii.mdio_write = dm9000_phy_write;
+
+ mac_src = "eeprom";
+
+ /* try reading the node address from the attached EEPROM */
+ for (i = 0; i < 6; i += 2)
+ dm9000_read_eeprom(db, i / 2, ndev->dev_addr+i);
+
+ if (!is_valid_ether_addr(ndev->dev_addr) && pdata != NULL) {
+ mac_src = "platform data";
+ memcpy(ndev->dev_addr, pdata->dev_addr, 6);
+ }
+
+ if (!is_valid_ether_addr(ndev->dev_addr)) {
+ /* try reading from mac */
+
+ mac_src = "chip";
+ for (i = 0; i < 6; i++)
+ ndev->dev_addr[i] = ior(db, i+DM9000_PAR);
+ }
+
+ if (!is_valid_ether_addr(ndev->dev_addr))
+ dev_warn(db->dev, "%s: Invalid ethernet MAC address. Please "
+ "set using ifconfig\n", ndev->name);
+
+ platform_set_drvdata(pdev, ndev);
+ ret = register_netdev(ndev);
+
+ if (ret == 0)
+ printk(KERN_INFO "%s: dm9000%c at %p,%p IRQ %d MAC: %pM (%s)\n",
+ ndev->name, dm9000_type_to_char(db->type),
+ db->io_addr, db->io_data, ndev->irq,
+ ndev->dev_addr, mac_src);
+ return 0;
+
+out:
+ dev_err(db->dev, "not found (%d).\n", ret);
+
+ dm9000_release_board(pdev, db);
+ free_netdev(ndev);
+
+ return ret;
+}
+
static int
-dm9000_drv_suspend(struct platform_device *dev, pm_message_t state)
+dm9000_drv_suspend(struct device *dev)
{
- struct net_device *ndev = platform_get_drvdata(dev);
+ struct platform_device *pdev = to_platform_device(dev);
+ struct net_device *ndev = platform_get_drvdata(pdev);
board_info_t *db;
if (ndev) {
- db = (board_info_t *) ndev->priv;
+ db = netdev_priv(ndev);
db->in_suspend = 1;
- if (netif_running(ndev)) {
- netif_device_detach(ndev);
+ if (!netif_running(ndev))
+ return 0;
+
+ netif_device_detach(ndev);
+
+ /* only shutdown if not using WoL */
+ if (!db->wake_state)
dm9000_shutdown(ndev);
- }
}
return 0;
}
static int
-dm9000_drv_resume(struct platform_device *dev)
+dm9000_drv_resume(struct device *dev)
{
- struct net_device *ndev = platform_get_drvdata(dev);
- board_info_t *db = (board_info_t *) ndev->priv;
+ struct platform_device *pdev = to_platform_device(dev);
+ struct net_device *ndev = platform_get_drvdata(pdev);
+ board_info_t *db = netdev_priv(ndev);
if (ndev) {
-
if (netif_running(ndev)) {
- dm9000_reset(db);
- dm9000_init_dm9000(ndev);
+ /* reset if we were not in wake mode to ensure if
+ * the device was powered off it is in a known state */
+ if (!db->wake_state) {
+ dm9000_reset(db);
+ dm9000_init_dm9000(ndev);
+ }
netif_device_attach(ndev);
}
return 0;
}
-static int
+static const struct dev_pm_ops dm9000_drv_pm_ops = {
+ .suspend = dm9000_drv_suspend,
+ .resume = dm9000_drv_resume,
+};
+
+static int __devexit
dm9000_drv_remove(struct platform_device *pdev)
{
struct net_device *ndev = platform_get_drvdata(pdev);
platform_set_drvdata(pdev, NULL);
unregister_netdev(ndev);
- dm9000_release_board(pdev, (board_info_t *) ndev->priv);
+ dm9000_release_board(pdev, (board_info_t *) netdev_priv(ndev));
free_netdev(ndev); /* free device structure */
dev_dbg(&pdev->dev, "released and freed device\n");
.driver = {
.name = "dm9000",
.owner = THIS_MODULE,
+ .pm = &dm9000_drv_pm_ops,
},
.probe = dm9000_probe,
- .remove = dm9000_drv_remove,
- .suspend = dm9000_drv_suspend,
- .resume = dm9000_drv_resume,
+ .remove = __devexit_p(dm9000_drv_remove),
};
static int __init
{
printk(KERN_INFO "%s Ethernet Driver, V%s\n", CARDNAME, DRV_VERSION);
- return platform_driver_register(&dm9000_driver); /* search board and register */
+ return platform_driver_register(&dm9000_driver);
}
static void __exit