From: Al Viro Date: Sun, 13 Jan 2008 14:17:45 +0000 (+0000) Subject: dl2k: BMCR_t fixes X-Git-Tag: v2.6.24~41^2~5 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d50956af74859b4e9ba544a0211a94bc2621c1d9;p=linux-2.6 dl2k: BMCR_t fixes broken use of bitfields; FUBAR on big-endian (and not valid C, strictly speaking). Signed-off-by: Al Viro Signed-off-by: Jeff Garzik --- diff --git a/drivers/net/dl2k.c b/drivers/net/dl2k.c index 47cce9cad3..badc60103d 100644 --- a/drivers/net/dl2k.c +++ b/drivers/net/dl2k.c @@ -1455,7 +1455,6 @@ mii_get_media (struct net_device *dev) { ANAR_t negotiate; BMSR_t bmsr; - BMCR_t bmcr; MSCR_t mscr; MSSR_t mssr; int phy_addr; @@ -1508,15 +1507,18 @@ mii_get_media (struct net_device *dev) } /* else tx_flow, rx_flow = user select */ } else { - bmcr.image = mii_read (dev, phy_addr, MII_BMCR); - if (bmcr.bits.speed100 == 1 && bmcr.bits.speed1000 == 0) { + __u16 bmcr = mii_read (dev, phy_addr, MII_BMCR); + switch (bmcr & (MII_BMCR_SPEED_100 | MII_BMCR_SPEED_1000)) { + case MII_BMCR_SPEED_1000: + printk (KERN_INFO "Operating at 1000 Mbps, "); + break; + case MII_BMCR_SPEED_100: printk (KERN_INFO "Operating at 100 Mbps, "); - } else if (bmcr.bits.speed100 == 0 && bmcr.bits.speed1000 == 0) { + break; + case 0: printk (KERN_INFO "Operating at 10 Mbps, "); - } else if (bmcr.bits.speed100 == 0 && bmcr.bits.speed1000 == 1) { - printk (KERN_INFO "Operating at 1000 Mbps, "); } - if (bmcr.bits.duplex_mode) { + if (bmcr & MII_BMCR_DUPLEX_MODE) { printk ("Full duplex\n"); } else { printk ("Half duplex\n"); @@ -1538,7 +1540,7 @@ static int mii_set_media (struct net_device *dev) { PHY_SCR_t pscr; - BMCR_t bmcr; + __u16 bmcr; BMSR_t bmsr; ANAR_t anar; int phy_addr; @@ -1567,11 +1569,8 @@ mii_set_media (struct net_device *dev) /* Soft reset PHY */ mii_write (dev, phy_addr, MII_BMCR, MII_BMCR_RESET); - bmcr.image = 0; - bmcr.bits.an_enable = 1; - bmcr.bits.restart_an = 1; - bmcr.bits.reset = 1; - mii_write (dev, phy_addr, MII_BMCR, bmcr.image); + bmcr = MII_BMCR_AN_ENABLE | MII_BMCR_RESTART_AN | MII_BMCR_RESET; + mii_write (dev, phy_addr, MII_BMCR, bmcr); mdelay(1); } else { /* Force speed setting */ @@ -1581,35 +1580,30 @@ mii_set_media (struct net_device *dev) mii_write (dev, phy_addr, MII_PHY_SCR, pscr.image); /* 2) PHY Reset */ - bmcr.image = mii_read (dev, phy_addr, MII_BMCR); - bmcr.bits.reset = 1; - mii_write (dev, phy_addr, MII_BMCR, bmcr.image); + bmcr = mii_read (dev, phy_addr, MII_BMCR); + bmcr |= MII_BMCR_RESET; + mii_write (dev, phy_addr, MII_BMCR, bmcr); /* 3) Power Down */ - bmcr.image = 0x1940; /* must be 0x1940 */ - mii_write (dev, phy_addr, MII_BMCR, bmcr.image); + bmcr = 0x1940; /* must be 0x1940 */ + mii_write (dev, phy_addr, MII_BMCR, bmcr); mdelay (100); /* wait a certain time */ /* 4) Advertise nothing */ mii_write (dev, phy_addr, MII_ANAR, 0); /* 5) Set media and Power Up */ - bmcr.image = 0; - bmcr.bits.power_down = 1; + bmcr = MII_BMCR_POWER_DOWN; if (np->speed == 100) { - bmcr.bits.speed100 = 1; - bmcr.bits.speed1000 = 0; + bmcr |= MII_BMCR_SPEED_100; printk (KERN_INFO "Manual 100 Mbps, "); } else if (np->speed == 10) { - bmcr.bits.speed100 = 0; - bmcr.bits.speed1000 = 0; printk (KERN_INFO "Manual 10 Mbps, "); } if (np->full_duplex) { - bmcr.bits.duplex_mode = 1; + bmcr |= MII_BMCR_DUPLEX_MODE; printk ("Full duplex\n"); } else { - bmcr.bits.duplex_mode = 0; printk ("Half duplex\n"); } #if 0 @@ -1618,7 +1612,7 @@ mii_set_media (struct net_device *dev) mscr.bits.cfg_enable = 1; mscr.bits.cfg_value = 0; #endif - mii_write (dev, phy_addr, MII_BMCR, bmcr.image); + mii_write (dev, phy_addr, MII_BMCR, bmcr); mdelay(10); } return 0; @@ -1629,7 +1623,6 @@ mii_get_media_pcs (struct net_device *dev) { ANAR_PCS_t negotiate; BMSR_t bmsr; - BMCR_t bmcr; int phy_addr; struct netdev_private *np; @@ -1661,9 +1654,9 @@ mii_get_media_pcs (struct net_device *dev) } /* else tx_flow, rx_flow = user select */ } else { - bmcr.image = mii_read (dev, phy_addr, PCS_BMCR); + __u16 bmcr = mii_read (dev, phy_addr, PCS_BMCR); printk (KERN_INFO "Operating at 1000 Mbps, "); - if (bmcr.bits.duplex_mode) { + if (bmcr & MII_BMCR_DUPLEX_MODE) { printk ("Full duplex\n"); } else { printk ("Half duplex\n"); @@ -1684,7 +1677,7 @@ mii_get_media_pcs (struct net_device *dev) static int mii_set_media_pcs (struct net_device *dev) { - BMCR_t bmcr; + __u16 bmcr; ESR_t esr; ANAR_PCS_t anar; int phy_addr; @@ -1707,29 +1700,24 @@ mii_set_media_pcs (struct net_device *dev) /* Soft reset PHY */ mii_write (dev, phy_addr, MII_BMCR, MII_BMCR_RESET); - bmcr.image = 0; - bmcr.bits.an_enable = 1; - bmcr.bits.restart_an = 1; - bmcr.bits.reset = 1; - mii_write (dev, phy_addr, MII_BMCR, bmcr.image); + bmcr = MII_BMCR_AN_ENABLE | MII_BMCR_RESTART_AN | + MII_BMCR_RESET; + mii_write (dev, phy_addr, MII_BMCR, bmcr); mdelay(1); } else { /* Force speed setting */ /* PHY Reset */ - bmcr.image = 0; - bmcr.bits.reset = 1; - mii_write (dev, phy_addr, MII_BMCR, bmcr.image); + bmcr = MII_BMCR_RESET; + mii_write (dev, phy_addr, MII_BMCR, bmcr); mdelay(10); - bmcr.image = 0; - bmcr.bits.an_enable = 0; if (np->full_duplex) { - bmcr.bits.duplex_mode = 1; + bmcr = MII_BMCR_DUPLEX_MODE; printk (KERN_INFO "Manual full duplex\n"); } else { - bmcr.bits.duplex_mode = 0; + bmcr = 0; printk (KERN_INFO "Manual half duplex\n"); } - mii_write (dev, phy_addr, MII_BMCR, bmcr.image); + mii_write (dev, phy_addr, MII_BMCR, bmcr); mdelay(10); /* Advertise nothing */ diff --git a/drivers/net/dl2k.h b/drivers/net/dl2k.h index 014b77ce96..931fd0e58f 100644 --- a/drivers/net/dl2k.h +++ b/drivers/net/dl2k.h @@ -298,23 +298,6 @@ enum _pcs_reg { }; /* Basic Mode Control Register */ -typedef union t_MII_BMCR { - u16 image; - struct { - u16 _bit_5_0:6; // bit 5:0 - u16 speed1000:1; // bit 6 - u16 col_test_enable:1; // bit 7 - u16 duplex_mode:1; // bit 8 - u16 restart_an:1; // bit 9 - u16 isolate:1; // bit 10 - u16 power_down:1; // bit 11 - u16 an_enable:1; // bit 12 - u16 speed100:1; // bit 13 - u16 loopback:1; // bit 14 - u16 reset:1; // bit 15 - } bits; -} BMCR_t, *PBMCR_t; - enum _mii_bmcr { MII_BMCR_RESET = 0x8000, MII_BMCR_LOOP_BACK = 0x4000,