diff options
| author | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-05-12 23:04:46 -0700 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-08-11 02:33:43 -0700 |
| commit | e689cf4a042772f727450035b102579b0c01bdc7 (patch) | |
| tree | f2b17aa21b8358a8f7589fed46fa08688b439464 /drivers/net/sunhme.c | |
| parent | 8efc91254fda97ee78e2e0b8e016120e664131de (diff) | |
| download | linux-e689cf4a042772f727450035b102579b0c01bdc7.tar.bz2 | |
cassini/niu/sun*: Move the Sun drivers
Moves the Sun drivers into drivers/net/ethernet/sun/ and make
the necessary Kconfig and Makefile changes.
Oliver Hartkopp <socketcan@hartkopp.net> suggested removing the
sun* prefix on the driver names. This type of change I will
leave up to the driver maintainers.
CC: Sam Creasey <sammy@sammy.net>
CC: Adrian Sun <asun@darksunrising.com>
CC: Benjamin Herrenscmidt <benh@kernel.crashing.org>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/sunhme.c')
| -rw-r--r-- | drivers/net/sunhme.c | 3360 |
1 files changed, 0 insertions, 3360 deletions
diff --git a/drivers/net/sunhme.c b/drivers/net/sunhme.c deleted file mode 100644 index 856e05b9fba3..000000000000 --- a/drivers/net/sunhme.c +++ /dev/null @@ -1,3360 +0,0 @@ -/* sunhme.c: Sparc HME/BigMac 10/100baseT half/full duplex auto switching, - * auto carrier detecting ethernet driver. Also known as the - * "Happy Meal Ethernet" found on SunSwift SBUS cards. - * - * Copyright (C) 1996, 1998, 1999, 2002, 2003, - * 2006, 2008 David S. Miller (davem@davemloft.net) - * - * Changes : - * 2000/11/11 Willy Tarreau <willy AT meta-x.org> - * - port to non-sparc architectures. Tested only on x86 and - * only currently works with QFE PCI cards. - * - ability to specify the MAC address at module load time by passing this - * argument : macaddr=0x00,0x10,0x20,0x30,0x40,0x50 - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/fcntl.h> -#include <linux/interrupt.h> -#include <linux/ioport.h> -#include <linux/in.h> -#include <linux/slab.h> -#include <linux/string.h> -#include <linux/delay.h> -#include <linux/init.h> -#include <linux/ethtool.h> -#include <linux/mii.h> -#include <linux/crc32.h> -#include <linux/random.h> -#include <linux/errno.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/skbuff.h> -#include <linux/mm.h> -#include <linux/bitops.h> -#include <linux/dma-mapping.h> - -#include <asm/system.h> -#include <asm/io.h> -#include <asm/dma.h> -#include <asm/byteorder.h> - -#ifdef CONFIG_SPARC -#include <linux/of.h> -#include <linux/of_device.h> -#include <asm/idprom.h> -#include <asm/openprom.h> -#include <asm/oplib.h> -#include <asm/prom.h> -#include <asm/auxio.h> -#endif -#include <asm/uaccess.h> - -#include <asm/pgtable.h> -#include <asm/irq.h> - -#ifdef CONFIG_PCI -#include <linux/pci.h> -#endif - -#include "sunhme.h" - -#define DRV_NAME "sunhme" -#define DRV_VERSION "3.10" -#define DRV_RELDATE "August 26, 2008" -#define DRV_AUTHOR "David S. Miller (davem@davemloft.net)" - -static char version[] = - DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE " " DRV_AUTHOR "\n"; - -MODULE_VERSION(DRV_VERSION); -MODULE_AUTHOR(DRV_AUTHOR); -MODULE_DESCRIPTION("Sun HappyMealEthernet(HME) 10/100baseT ethernet driver"); -MODULE_LICENSE("GPL"); - -static int macaddr[6]; - -/* accept MAC address of the form macaddr=0x08,0x00,0x20,0x30,0x40,0x50 */ -module_param_array(macaddr, int, NULL, 0); -MODULE_PARM_DESC(macaddr, "Happy Meal MAC address to set"); - -#ifdef CONFIG_SBUS -static struct quattro *qfe_sbus_list; -#endif - -#ifdef CONFIG_PCI -static struct quattro *qfe_pci_list; -#endif - -#undef HMEDEBUG -#undef SXDEBUG -#undef RXDEBUG -#undef TXDEBUG -#undef TXLOGGING - -#ifdef TXLOGGING -struct hme_tx_logent { - unsigned int tstamp; - int tx_new, tx_old; - unsigned int action; -#define TXLOG_ACTION_IRQ 0x01 -#define TXLOG_ACTION_TXMIT 0x02 -#define TXLOG_ACTION_TBUSY 0x04 -#define TXLOG_ACTION_NBUFS 0x08 - unsigned int status; -}; -#define TX_LOG_LEN 128 -static struct hme_tx_logent tx_log[TX_LOG_LEN]; -static int txlog_cur_entry; -static __inline__ void tx_add_log(struct happy_meal *hp, unsigned int a, unsigned int s) -{ - struct hme_tx_logent *tlp; - unsigned long flags; - - local_irq_save(flags); - tlp = &tx_log[txlog_cur_entry]; - tlp->tstamp = (unsigned int)jiffies; - tlp->tx_new = hp->tx_new; - tlp->tx_old = hp->tx_old; - tlp->action = a; - tlp->status = s; - txlog_cur_entry = (txlog_cur_entry + 1) & (TX_LOG_LEN - 1); - local_irq_restore(flags); -} -static __inline__ void tx_dump_log(void) -{ - int i, this; - - this = txlog_cur_entry; - for (i = 0; i < TX_LOG_LEN; i++) { - printk("TXLOG[%d]: j[%08x] tx[N(%d)O(%d)] action[%08x] stat[%08x]\n", i, - tx_log[this].tstamp, - tx_log[this].tx_new, tx_log[this].tx_old, - tx_log[this].action, tx_log[this].status); - this = (this + 1) & (TX_LOG_LEN - 1); - } -} -static __inline__ void tx_dump_ring(struct happy_meal *hp) -{ - struct hmeal_init_block *hb = hp->happy_block; - struct happy_meal_txd *tp = &hb->happy_meal_txd[0]; - int i; - - for (i = 0; i < TX_RING_SIZE; i+=4) { - printk("TXD[%d..%d]: [%08x:%08x] [%08x:%08x] [%08x:%08x] [%08x:%08x]\n", - i, i + 4, - le32_to_cpu(tp[i].tx_flags), le32_to_cpu(tp[i].tx_addr), - le32_to_cpu(tp[i + 1].tx_flags), le32_to_cpu(tp[i + 1].tx_addr), - le32_to_cpu(tp[i + 2].tx_flags), le32_to_cpu(tp[i + 2].tx_addr), - le32_to_cpu(tp[i + 3].tx_flags), le32_to_cpu(tp[i + 3].tx_addr)); - } -} -#else -#define tx_add_log(hp, a, s) do { } while(0) -#define tx_dump_log() do { } while(0) -#define tx_dump_ring(hp) do { } while(0) -#endif - -#ifdef HMEDEBUG -#define HMD(x) printk x -#else -#define HMD(x) -#endif - -/* #define AUTO_SWITCH_DEBUG */ - -#ifdef AUTO_SWITCH_DEBUG -#define ASD(x) printk x -#else -#define ASD(x) -#endif - -#define DEFAULT_IPG0 16 /* For lance-mode only */ -#define DEFAULT_IPG1 8 /* For all modes */ -#define DEFAULT_IPG2 4 /* For all modes */ -#define DEFAULT_JAMSIZE 4 /* Toe jam */ - -/* NOTE: In the descriptor writes one _must_ write the address - * member _first_. The card must not be allowed to see - * the updated descriptor flags until the address is - * correct. I've added a write memory barrier between - * the two stores so that I can sleep well at night... -DaveM - */ - -#if defined(CONFIG_SBUS) && defined(CONFIG_PCI) -static void sbus_hme_write32(void __iomem *reg, u32 val) -{ - sbus_writel(val, reg); -} - -static u32 sbus_hme_read32(void __iomem *reg) -{ - return sbus_readl(reg); -} - -static void sbus_hme_write_rxd(struct happy_meal_rxd *rxd, u32 flags, u32 addr) -{ - rxd->rx_addr = (__force hme32)addr; - wmb(); - rxd->rx_flags = (__force hme32)flags; -} - -static void sbus_hme_write_txd(struct happy_meal_txd *txd, u32 flags, u32 addr) -{ - txd->tx_addr = (__force hme32)addr; - wmb(); - txd->tx_flags = (__force hme32)flags; -} - -static u32 sbus_hme_read_desc32(hme32 *p) -{ - return (__force u32)*p; -} - -static void pci_hme_write32(void __iomem *reg, u32 val) -{ - writel(val, reg); -} - -static u32 pci_hme_read32(void __iomem *reg) -{ - return readl(reg); -} - -static void pci_hme_write_rxd(struct happy_meal_rxd *rxd, u32 flags, u32 addr) -{ - rxd->rx_addr = (__force hme32)cpu_to_le32(addr); - wmb(); - rxd->rx_flags = (__force hme32)cpu_to_le32(flags); -} - -static void pci_hme_write_txd(struct happy_meal_txd *txd, u32 flags, u32 addr) -{ - txd->tx_addr = (__force hme32)cpu_to_le32(addr); - wmb(); - txd->tx_flags = (__force hme32)cpu_to_le32(flags); -} - -static u32 pci_hme_read_desc32(hme32 *p) -{ - return le32_to_cpup((__le32 *)p); -} - -#define hme_write32(__hp, __reg, __val) \ - ((__hp)->write32((__reg), (__val))) -#define hme_read32(__hp, __reg) \ - ((__hp)->read32(__reg)) -#define hme_write_rxd(__hp, __rxd, __flags, __addr) \ - ((__hp)->write_rxd((__rxd), (__flags), (__addr))) -#define hme_write_txd(__hp, __txd, __flags, __addr) \ - ((__hp)->write_txd((__txd), (__flags), (__addr))) -#define hme_read_desc32(__hp, __p) \ - ((__hp)->read_desc32(__p)) -#define hme_dma_map(__hp, __ptr, __size, __dir) \ - ((__hp)->dma_map((__hp)->dma_dev, (__ptr), (__size), (__dir))) -#define hme_dma_unmap(__hp, __addr, __size, __dir) \ - ((__hp)->dma_unmap((__hp)->dma_dev, (__addr), (__size), (__dir))) -#define hme_dma_sync_for_cpu(__hp, __addr, __size, __dir) \ - ((__hp)->dma_sync_for_cpu((__hp)->dma_dev, (__addr), (__size), (__dir))) -#define hme_dma_sync_for_device(__hp, __addr, __size, __dir) \ - ((__hp)->dma_sync_for_device((__hp)->dma_dev, (__addr), (__size), (__dir))) -#else -#ifdef CONFIG_SBUS -/* SBUS only compilation */ -#define hme_write32(__hp, __reg, __val) \ - sbus_writel((__val), (__reg)) -#define hme_read32(__hp, __reg) \ - sbus_readl(__reg) -#define hme_write_rxd(__hp, __rxd, __flags, __addr) \ -do { (__rxd)->rx_addr = (__force hme32)(u32)(__addr); \ - wmb(); \ - (__rxd)->rx_flags = (__force hme32)(u32)(__flags); \ -} while(0) -#define hme_write_txd(__hp, __txd, __flags, __addr) \ -do { (__txd)->tx_addr = (__force hme32)(u32)(__addr); \ - wmb(); \ - (__txd)->tx_flags = (__force hme32)(u32)(__flags); \ -} while(0) -#define hme_read_desc32(__hp, __p) ((__force u32)(hme32)*(__p)) -#define hme_dma_map(__hp, __ptr, __size, __dir) \ - dma_map_single((__hp)->dma_dev, (__ptr), (__size), (__dir)) -#define hme_dma_unmap(__hp, __addr, __size, __dir) \ - dma_unmap_single((__hp)->dma_dev, (__addr), (__size), (__dir)) -#define hme_dma_sync_for_cpu(__hp, __addr, __size, __dir) \ - dma_dma_sync_single_for_cpu((__hp)->dma_dev, (__addr), (__size), (__dir)) -#define hme_dma_sync_for_device(__hp, __addr, __size, __dir) \ - dma_dma_sync_single_for_device((__hp)->dma_dev, (__addr), (__size), (__dir)) -#else -/* PCI only compilation */ -#define hme_write32(__hp, __reg, __val) \ - writel((__val), (__reg)) -#define hme_read32(__hp, __reg) \ - readl(__reg) -#define hme_write_rxd(__hp, __rxd, __flags, __addr) \ -do { (__rxd)->rx_addr = (__force hme32)cpu_to_le32(__addr); \ - wmb(); \ - (__rxd)->rx_flags = (__force hme32)cpu_to_le32(__flags); \ -} while(0) -#define hme_write_txd(__hp, __txd, __flags, __addr) \ -do { (__txd)->tx_addr = (__force hme32)cpu_to_le32(__addr); \ - wmb(); \ - (__txd)->tx_flags = (__force hme32)cpu_to_le32(__flags); \ -} while(0) -static inline u32 hme_read_desc32(struct happy_meal *hp, hme32 *p) -{ - return le32_to_cpup((__le32 *)p); -} -#define hme_dma_map(__hp, __ptr, __size, __dir) \ - pci_map_single((__hp)->dma_dev, (__ptr), (__size), (__dir)) -#define hme_dma_unmap(__hp, __addr, __size, __dir) \ - pci_unmap_single((__hp)->dma_dev, (__addr), (__size), (__dir)) -#define hme_dma_sync_for_cpu(__hp, __addr, __size, __dir) \ - pci_dma_sync_single_for_cpu((__hp)->dma_dev, (__addr), (__size), (__dir)) -#define hme_dma_sync_for_device(__hp, __addr, __size, __dir) \ - pci_dma_sync_single_for_device((__hp)->dma_dev, (__addr), (__size), (__dir)) -#endif -#endif - - -/* Oh yes, the MIF BitBang is mighty fun to program. BitBucket is more like it. */ -static void BB_PUT_BIT(struct happy_meal *hp, void __iomem *tregs, int bit) -{ - hme_write32(hp, tregs + TCVR_BBDATA, bit); - hme_write32(hp, tregs + TCVR_BBCLOCK, 0); - hme_write32(hp, tregs + TCVR_BBCLOCK, 1); -} - -#if 0 -static u32 BB_GET_BIT(struct happy_meal *hp, void __iomem *tregs, int internal) -{ - u32 ret; - - hme_write32(hp, tregs + TCVR_BBCLOCK, 0); - hme_write32(hp, tregs + TCVR_BBCLOCK, 1); - ret = hme_read32(hp, tregs + TCVR_CFG); - if (internal) - ret &= TCV_CFG_MDIO0; - else - ret &= TCV_CFG_MDIO1; - - return ret; -} -#endif - -static u32 BB_GET_BIT2(struct happy_meal *hp, void __iomem *tregs, int internal) -{ - u32 retval; - - hme_write32(hp, tregs + TCVR_BBCLOCK, 0); - udelay(1); - retval = hme_read32(hp, tregs + TCVR_CFG); - if (internal) - retval &= TCV_CFG_MDIO0; - else - retval &= TCV_CFG_MDIO1; - hme_write32(hp, tregs + TCVR_BBCLOCK, 1); - - return retval; -} - -#define TCVR_FAILURE 0x80000000 /* Impossible MIF read value */ - -static int happy_meal_bb_read(struct happy_meal *hp, - void __iomem *tregs, int reg) -{ - u32 tmp; - int retval = 0; - int i; - - ASD(("happy_meal_bb_read: reg=%d ", reg)); - - /* Enable the MIF BitBang outputs. */ - hme_write32(hp, tregs + TCVR_BBOENAB, 1); - - /* Force BitBang into the idle state. */ - for (i = 0; i < 32; i++) - BB_PUT_BIT(hp, tregs, 1); - - /* Give it the read sequence. */ - BB_PUT_BIT(hp, tregs, 0); - BB_PUT_BIT(hp, tregs, 1); - BB_PUT_BIT(hp, tregs, 1); - BB_PUT_BIT(hp, tregs, 0); - - /* Give it the PHY address. */ - tmp = hp->paddr & 0xff; - for (i = 4; i >= 0; i--) - BB_PUT_BIT(hp, tregs, ((tmp >> i) & 1)); - - /* Tell it what register we want to read. */ - tmp = (reg & 0xff); - for (i = 4; i >= 0; i--) - BB_PUT_BIT(hp, tregs, ((tmp >> i) & 1)); - - /* Close down the MIF BitBang outputs. */ - hme_write32(hp, tregs + TCVR_BBOENAB, 0); - - /* Now read in the value. */ - (void) BB_GET_BIT2(hp, tregs, (hp->tcvr_type == internal)); - for (i = 15; i >= 0; i--) - retval |= BB_GET_BIT2(hp, tregs, (hp->tcvr_type == internal)); - (void) BB_GET_BIT2(hp, tregs, (hp->tcvr_type == internal)); - (void) BB_GET_BIT2(hp, tregs, (hp->tcvr_type == internal)); - (void) BB_GET_BIT2(hp, tregs, (hp->tcvr_type == internal)); - ASD(("value=%x\n", retval)); - return retval; -} - -static void happy_meal_bb_write(struct happy_meal *hp, - void __iomem *tregs, int reg, - unsigned short value) -{ - u32 tmp; - int i; - - ASD(("happy_meal_bb_write: reg=%d value=%x\n", reg, value)); - - /* Enable the MIF BitBang outputs. */ - hme_write32(hp, tregs + TCVR_BBOENAB, 1); - - /* Force BitBang into the idle state. */ - for (i = 0; i < 32; i++) - BB_PUT_BIT(hp, tregs, 1); - - /* Give it write sequence. */ - BB_PUT_BIT(hp, tregs, 0); - BB_PUT_BIT(hp, tregs, 1); - BB_PUT_BIT(hp, tregs, 0); - BB_PUT_BIT(hp, tregs, 1); - - /* Give it the PHY address. */ - tmp = (hp->paddr & 0xff); - for (i = 4; i >= 0; i--) - BB_PUT_BIT(hp, tregs, ((tmp >> i) & 1)); - - /* Tell it what register we will be writing. */ - tmp = (reg & 0xff); - for (i = 4; i >= 0; i--) - BB_PUT_BIT(hp, tregs, ((tmp >> i) & 1)); - - /* Tell it to become ready for the bits. */ - BB_PUT_BIT(hp, tregs, 1); - BB_PUT_BIT(hp, tregs, 0); - - for (i = 15; i >= 0; i--) - BB_PUT_BIT(hp, tregs, ((value >> i) & 1)); - - /* Close down the MIF BitBang outputs. */ - hme_write32(hp, tregs + TCVR_BBOENAB, 0); -} - -#define TCVR_READ_TRIES 16 - -static int happy_meal_tcvr_read(struct happy_meal *hp, - void __iomem *tregs, int reg) -{ - int tries = TCVR_READ_TRIES; - int retval; - - ASD(("happy_meal_tcvr_read: reg=0x%02x ", reg)); - if (hp->tcvr_type == none) { - ASD(("no transceiver, value=TCVR_FAILURE\n")); - return TCVR_FAILURE; - } - - if (!(hp->happy_flags & HFLAG_FENABLE)) { - ASD(("doing bit bang\n")); - return happy_meal_bb_read(hp, tregs, reg); - } - - hme_write32(hp, tregs + TCVR_FRAME, - (FRAME_READ | (hp->paddr << 23) | ((reg & 0xff) << 18))); - while (!(hme_read32(hp, tregs + TCVR_FRAME) & 0x10000) && --tries) - udelay(20); - if (!tries) { - printk(KERN_ERR "happy meal: Aieee, transceiver MIF read bolixed\n"); - return TCVR_FAILURE; - } - retval = hme_read32(hp, tregs + TCVR_FRAME) & 0xffff; - ASD(("value=%04x\n", retval)); - return retval; -} - -#define TCVR_WRITE_TRIES 16 - -static void happy_meal_tcvr_write(struct happy_meal *hp, - void __iomem *tregs, int reg, - unsigned short value) -{ - int tries = TCVR_WRITE_TRIES; - - ASD(("happy_meal_tcvr_write: reg=0x%02x value=%04x\n", reg, value)); - - /* Welcome to Sun Microsystems, can I take your order please? */ - if (!(hp->happy_flags & HFLAG_FENABLE)) { - happy_meal_bb_write(hp, tregs, reg, value); - return; - } - - /* Would you like fries with that? */ - hme_write32(hp, tregs + TCVR_FRAME, - (FRAME_WRITE | (hp->paddr << 23) | - ((reg & 0xff) << 18) | (value & 0xffff))); - while (!(hme_read32(hp, tregs + TCVR_FRAME) & 0x10000) && --tries) - udelay(20); - - /* Anything else? */ - if (!tries) - printk(KERN_ERR "happy meal: Aieee, transceiver MIF write bolixed\n"); - - /* Fifty-two cents is your change, have a nice day. */ -} - -/* Auto negotiation. The scheme is very simple. We have a timer routine - * that keeps watching the auto negotiation process as it progresses. - * The DP83840 is first told to start doing it's thing, we set up the time - * and place the timer state machine in it's initial state. - * - * Here the timer peeks at the DP83840 status registers at each click to see - * if the auto negotiation has completed, we assume here that the DP83840 PHY - * will time out at some point and just tell us what (didn't) happen. For - * complete coverage we only allow so many of the ticks at this level to run, - * when this has expired we print a warning message and try another strategy. - * This "other" strategy is to force the interface into various speed/duplex - * configurations and we stop when we see a link-up condition before the - * maximum number of "peek" ticks have occurred. - * - * Once a valid link status has been detected we configure the BigMAC and - * the rest of the Happy Meal to speak the most efficient protocol we could - * get a clean link for. The priority for link configurations, highest first - * is: - * 100 Base-T Full Duplex - * 100 Base-T Half Duplex - * 10 Base-T Full Duplex - * 10 Base-T Half Duplex - * - * We start a new timer now, after a successful auto negotiation status has - * been detected. This timer just waits for the link-up bit to get set in - * the BMCR of the DP83840. When this occurs we print a kernel log message - * describing the link type in use and the fact that it is up. - * - * If a fatal error of some sort is signalled and detected in the interrupt - * service routine, and the chip is reset, or the link is ifconfig'd down - * and then back up, this entire process repeats itself all over again. - */ -static int try_next_permutation(struct happy_meal *hp, void __iomem *tregs) -{ - hp->sw_bmcr = happy_meal_tcvr_read(hp, tregs, MII_BMCR); - - /* Downgrade from full to half duplex. Only possible - * via ethtool. - */ - if (hp->sw_bmcr & BMCR_FULLDPLX) { - hp->sw_bmcr &= ~(BMCR_FULLDPLX); - happy_meal_tcvr_write(hp, tregs, MII_BMCR, hp->sw_bmcr); - return 0; - } - - /* Downgrade from 100 to 10. */ - if (hp->sw_bmcr & BMCR_SPEED100) { - hp->sw_bmcr &= ~(BMCR_SPEED100); - happy_meal_tcvr_write(hp, tregs, MII_BMCR, hp->sw_bmcr); - return 0; - } - - /* We've tried everything. */ - return -1; -} - -static void display_link_mode(struct happy_meal *hp, void __iomem *tregs) -{ - printk(KERN_INFO "%s: Link is up using ", hp->dev->name); - if (hp->tcvr_type == external) - printk("external "); - else - printk("internal "); - printk("transceiver at "); - hp->sw_lpa = happy_meal_tcvr_read(hp, tregs, MII_LPA); - if (hp->sw_lpa & (LPA_100HALF | LPA_100FULL)) { - if (hp->sw_lpa & LPA_100FULL) - printk("100Mb/s, Full Duplex.\n"); - else - printk("100Mb/s, Half Duplex.\n"); - } else { - if (hp->sw_lpa & LPA_10FULL) - printk("10Mb/s, Full Duplex.\n"); - else - printk("10Mb/s, Half Duplex.\n"); - } -} - -static void display_forced_link_mode(struct happy_meal *hp, void __iomem *tregs) -{ - printk(KERN_INFO "%s: Link has been forced up using ", hp->dev->name); - if (hp->tcvr_type == external) - printk("external "); - else - printk("internal "); - printk("transceiver at "); - hp->sw_bmcr = happy_meal_tcvr_read(hp, tregs, MII_BMCR); - if (hp->sw_bmcr & BMCR_SPEED100) - printk("100Mb/s, "); - else - printk("10Mb/s, "); - if (hp->sw_bmcr & BMCR_FULLDPLX) - printk("Full Duplex.\n"); - else - printk("Half Duplex.\n"); -} - -static int set_happy_link_modes(struct happy_meal *hp, void __iomem *tregs) -{ - int full; - - /* All we care about is making sure the bigmac tx_cfg has a - * proper duplex setting. - */ - if (hp->timer_state == arbwait) { - hp->sw_lpa = happy_meal_tcvr_read(hp, tregs, MII_LPA); - if (!(hp->sw_lpa & (LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL))) - goto no_response; - if (hp->sw_lpa & LPA_100FULL) - full = 1; - else if (hp->sw_lpa & LPA_100HALF) - full = 0; - else if (hp->sw_lpa & LPA_10FULL) - full = 1; - else - full = 0; - } else { - /* Forcing a link mode. */ - hp->sw_bmcr = happy_meal_tcvr_read(hp, tregs, MII_BMCR); - if (hp->sw_bmcr & BMCR_FULLDPLX) - full = 1; - else - full = 0; - } - - /* Before changing other bits in the tx_cfg register, and in - * general any of other the TX config registers too, you - * must: - * 1) Clear Enable - * 2) Poll with reads until that bit reads back as zero - * 3) Make TX configuration changes - * 4) Set Enable once more - */ - hme_write32(hp, hp->bigmacregs + BMAC_TXCFG, - hme_read32(hp, hp->bigmacregs + BMAC_TXCFG) & - ~(BIGMAC_TXCFG_ENABLE)); - while (hme_read32(hp, hp->bigmacregs + BMAC_TXCFG) & BIGMAC_TXCFG_ENABLE) - barrier(); - if (full) { - hp->happy_flags |= HFLAG_FULL; - hme_write32(hp, hp->bigmacregs + BMAC_TXCFG, - hme_read32(hp, hp->bigmacregs + BMAC_TXCFG) | - BIGMAC_TXCFG_FULLDPLX); - } else { - hp->happy_flags &= ~(HFLAG_FULL); - hme_write32(hp, hp->bigmacregs + BMAC_TXCFG, - hme_read32(hp, hp->bigmacregs + BMAC_TXCFG) & - ~(BIGMAC_TXCFG_FULLDPLX)); - } - hme_write32(hp, hp->bigmacregs + BMAC_TXCFG, - hme_read32(hp, hp->bigmacregs + BMAC_TXCFG) | - BIGMAC_TXCFG_ENABLE); - return 0; -no_response: - return 1; -} - -static int happy_meal_init(struct happy_meal *hp); - -static int is_lucent_phy(struct happy_meal *hp) -{ - void __iomem *tregs = hp->tcvregs; - unsigned short mr2, mr3; - int ret = 0; - - mr2 = happy_meal_tcvr_read(hp, tregs, 2); - mr3 = happy_meal_tcvr_read(hp, tregs, 3); - if ((mr2 & 0xffff) == 0x0180 && - ((mr3 & 0xffff) >> 10) == 0x1d) - ret = 1; - - return ret; -} - -static void happy_meal_timer(unsigned long data) -{ - struct happy_meal *hp = (struct happy_meal *) data; - void __iomem *tregs = hp->tcvregs; - int restart_timer = 0; - - spin_lock_irq(&hp->happy_lock); - - hp->timer_ticks++; - switch(hp->timer_state) { - case arbwait: - /* Only allow for 5 ticks, thats 10 seconds and much too - * long to wait for arbitration to complete. - */ - if (hp->timer_ticks >= 10) { - /* Enter force mode. */ - do_force_mode: - hp->sw_bmcr = happy_meal_tcvr_read(hp, tregs, MII_BMCR); - printk(KERN_NOTICE "%s: Auto-Negotiation unsuccessful, trying force link mode\n", - hp->dev->name); - hp->sw_bmcr = BMCR_SPEED100; - happy_meal_tcvr_write(hp, tregs, MII_BMCR, hp->sw_bmcr); - - if (!is_lucent_phy(hp)) { - /* OK, seems we need do disable the transceiver for the first - * tick to make sure we get an accurate link state at the - * second tick. - */ - hp->sw_csconfig = happy_meal_tcvr_read(hp, tregs, DP83840_CSCONFIG); - hp->sw_csconfig &= ~(CSCONFIG_TCVDISAB); - happy_meal_tcvr_write(hp, tregs, DP83840_CSCONFIG, hp->sw_csconfig); - } - hp->timer_state = ltrywait; - hp->timer_ticks = 0; - restart_timer = 1; - } else { - /* Anything interesting happen? */ - hp->sw_bmsr = happy_meal_tcvr_read(hp, tregs, MII_BMSR); - if (hp->sw_bmsr & BMSR_ANEGCOMPLETE) { - int ret; - - /* Just what we've been waiting for... */ - ret = set_happy_link_modes(hp, tregs); - if (ret) { - /* Ooops, something bad happened, go to force - * mode. - * - * XXX Broken hubs which don't support 802.3u - * XXX auto-negotiation make this happen as well. - */ - goto do_force_mode; - } - - /* Success, at least so far, advance our state engine. */ - hp->timer_state = lupwait; - restart_timer = 1; - } else { - restart_timer = 1; - } - } - break; - - case lupwait: - /* Auto negotiation was successful and we are awaiting a - * link up status. I have decided to let this timer run - * forever until some sort of error is signalled, reporting - * a message to the user at 10 second intervals. - */ - hp->sw_bmsr = happy_meal_tcvr_read(hp, tregs, MII_BMSR); - if (hp->sw_bmsr & BMSR_LSTATUS) { - /* Wheee, it's up, display the link mode in use and put - * the timer to sleep. - */ - display_link_mode(hp, tregs); - hp->timer_state = asleep; - restart_timer = 0; - } else { - if (hp->timer_ticks >= 10) { - printk(KERN_NOTICE "%s: Auto negotiation successful, link still " - "not completely up.\n", hp->dev->name); - hp->timer_ticks = 0; - restart_timer = 1; - } else { - restart_timer = 1; - } - } - break; - - case ltrywait: - /* Making the timeout here too long can make it take - * annoyingly long to attempt all of the link mode - * permutations, but then again this is essentially - * error recovery code for the most part. - */ - hp->sw_bmsr = happy_meal_tcvr_read(hp, tregs, MII_BMSR); - hp->sw_csconfig = happy_meal_tcvr_read(hp, tregs, DP83840_CSCONFIG); - if (hp->timer_ticks == 1) { - if (!is_lucent_phy(hp)) { - /* Re-enable transceiver, we'll re-enable the transceiver next - * tick, then check link state on the following tick. - */ - hp->sw_csconfig |= CSCONFIG_TCVDISAB; - happy_meal_tcvr_write(hp, tregs, - DP83840_CSCONFIG, hp->sw_csconfig); - } - restart_timer = 1; - break; - } - if (hp->timer_ticks == 2) { - if (!is_lucent_phy(hp)) { - hp->sw_csconfig &= ~(CSCONFIG_TCVDISAB); - happy_meal_tcvr_write(hp, tregs, - DP83840_CSCONFIG, hp->sw_csconfig); - } - restart_timer = 1; - break; - } - if (hp->sw_bmsr & BMSR_LSTATUS) { - /* Force mode selection success. */ - display_forced_link_mode(hp, tregs); - set_happy_link_modes(hp, tregs); /* XXX error? then what? */ - hp->timer_state = asleep; - restart_timer = 0; - } else { - if (hp->timer_ticks >= 4) { /* 6 seconds or so... */ - int ret; - - ret = try_next_permutation(hp, tregs); - if (ret == -1) { - /* Aieee, tried them all, reset the - * chip and try all over again. - */ - - /* Let the user know... */ - printk(KERN_NOTICE "%s: Link down, cable problem?\n", - hp->dev->name); - - ret = happy_meal_init(hp); - if (ret) { - /* ho hum... */ - printk(KERN_ERR "%s: Error, cannot re-init the " - "Happy Meal.\n", hp->dev->name); - } - goto out; - } - if (!is_lucent_phy(hp)) { - hp->sw_csconfig = happy_meal_tcvr_read(hp, tregs, - DP83840_CSCONFIG); - hp->sw_csconfig |= CSCONFIG_TCVDISAB; - happy_meal_tcvr_write(hp, tregs, - DP83840_CSCONFIG, hp->sw_csconfig); - } - hp->timer_ticks = 0; - restart_timer = 1; - } else { - restart_timer = 1; - } - } - break; - - case asleep: - default: - /* Can't happens.... */ - printk(KERN_ERR "%s: Aieee, link timer is asleep but we got one anyways!\n", - hp->dev->name); - restart_timer = 0; - hp->timer_ticks = 0; - hp->timer_state = asleep; /* foo on you */ - break; - } - - if (restart_timer) { - hp->happy_timer.expires = jiffies + ((12 * HZ)/10); /* 1.2 sec. */ - add_timer(&hp->happy_timer); - } - -out: - spin_unlock_irq(&hp->happy_lock); -} - -#define TX_RESET_TRIES 32 -#define RX_RESET_TRIES 32 - -/* hp->happy_lock must be held */ -static void happy_meal_tx_reset(struct happy_meal *hp, void __iomem *bregs) -{ - int tries = TX_RESET_TRIES; - - HMD(("happy_meal_tx_reset: reset, ")); - - /* Would you like to try our SMCC Delux? */ - hme_write32(hp, bregs + BMAC_TXSWRESET, 0); - while ((hme_read32(hp, bregs + BMAC_TXSWRESET) & 1) && --tries) - udelay(20); - - /* Lettuce, tomato, buggy hardware (no extra charge)? */ - if (!tries) - printk(KERN_ERR "happy meal: Transceiver BigMac ATTACK!"); - - /* Take care. */ - HMD(("done\n")); -} - -/* hp->happy_lock must be held */ -static void happy_meal_rx_reset(struct happy_meal *hp, void __iomem *bregs) -{ - int tries = RX_RESET_TRIES; - - HMD(("happy_meal_rx_reset: reset, ")); - - /* We have a special on GNU/Viking hardware bugs today. */ - hme_write32(hp, bregs + BMAC_RXSWRESET, 0); - while ((hme_read32(hp, bregs + BMAC_RXSWRESET) & 1) && --tries) - udelay(20); - - /* Will that be all? */ - if (!tries) - printk(KERN_ERR "happy meal: Receiver BigMac ATTACK!"); - - /* Don't forget your vik_1137125_wa. Have a nice day. */ - HMD(("done\n")); -} - -#define STOP_TRIES 16 - -/* hp->happy_lock must be held */ -static void happy_meal_stop(struct happy_meal *hp, void __iomem *gregs) -{ - int tries = STOP_TRIES; - - HMD(("happy_meal_stop: reset, ")); - - /* We're consolidating our STB products, it's your lucky day. */ - hme_write32(hp, gregs + GREG_SWRESET, GREG_RESET_ALL); - while (hme_read32(hp, gregs + GREG_SWRESET) && --tries) - udelay(20); - - /* Come back next week when we are "Sun Microelectronics". */ - if (!tries) - printk(KERN_ERR "happy meal: Fry guys."); - - /* Remember: "Different name, same old buggy as shit hardware." */ - HMD(("done\n")); -} - -/* hp->happy_lock must be held */ -static void happy_meal_get_counters(struct happy_meal *hp, void __iomem *bregs) -{ - struct net_device_stats *stats = &hp->net_stats; - - stats->rx_crc_errors += hme_read32(hp, bregs + BMAC_RCRCECTR); - hme_write32(hp, bregs + BMAC_RCRCECTR, 0); - - stats->rx_frame_errors += hme_read32(hp, bregs + BMAC_UNALECTR); - hme_write32(hp, bregs + BMAC_UNALECTR, 0); - - stats->rx_length_errors += hme_read32(hp, bregs + BMAC_GLECTR); - hme_write32(hp, bregs + BMAC_GLECTR, 0); - - stats->tx_aborted_errors += hme_read32(hp, bregs + BMAC_EXCTR); - - stats->collisions += - (hme_read32(hp, bregs + BMAC_EXCTR) + - hme_read32(hp, bregs + BMAC_LTCTR)); - hme_write32(hp, bregs + BMAC_EXCTR, 0); - hme_write32(hp, bregs + BMAC_LTCTR, 0); -} - -/* hp->happy_lock must be held */ -static void happy_meal_poll_stop(struct happy_meal *hp, void __iomem *tregs) -{ - ASD(("happy_meal_poll_stop: ")); - - /* If polling disabled or not polling already, nothing to do. */ - if ((hp->happy_flags & (HFLAG_POLLENABLE | HFLAG_POLL)) != - (HFLAG_POLLENABLE | HFLAG_POLL)) { - HMD(("not polling, return\n")); - return; - } - - /* Shut up the MIF. */ - ASD(("were polling, mif ints off, ")); - hme_write32(hp, tregs + TCVR_IMASK, 0xffff); - - /* Turn off polling. */ - ASD(("polling off, ")); - hme_write32(hp, tregs + TCVR_CFG, - hme_read32(hp, tregs + TCVR_CFG) & ~(TCV_CFG_PENABLE)); - - /* We are no longer polling. */ - hp->happy_flags &= ~(HFLAG_POLL); - - /* Let the bits set. */ - udelay(200); - ASD(("done\n")); -} - -/* Only Sun can take such nice parts and fuck up the programming interface - * like this. Good job guys... - */ -#define TCVR_RESET_TRIES 16 /* It should reset quickly */ -#define TCVR_UNISOLATE_TRIES 32 /* Dis-isolation can take longer. */ - -/* hp->happy_lock must be held */ -static int happy_meal_tcvr_reset(struct happy_meal *hp, void __iomem *tregs) -{ - u32 tconfig; - int result, tries = TCVR_RESET_TRIES; - - tconfig = hme_read32(hp, tregs + TCVR_CFG); - ASD(("happy_meal_tcvr_reset: tcfg<%08lx> ", tconfig)); - if (hp->tcvr_type == external) { - ASD(("external<")); - hme_write32(hp, tregs + TCVR_CFG, tconfig & ~(TCV_CFG_PSELECT)); - hp->tcvr_type = internal; - hp->paddr = TCV_PADDR_ITX; - ASD(("ISOLATE,")); - happy_meal_tcvr_write(hp, tregs, MII_BMCR, - (BMCR_LOOPBACK|BMCR_PDOWN|BMCR_ISOLATE)); - result = happy_meal_tcvr_read(hp, tregs, MII_BMCR); - if (result == TCVR_FAILURE) { - ASD(("phyread_fail>\n")); - return -1; - } - ASD(("phyread_ok,PSELECT>")); - hme_write32(hp, tregs + TCVR_CFG, tconfig | TCV_CFG_PSELECT); - hp->tcvr_type = external; - hp->paddr = TCV_PADDR_ETX; - } else { - if (tconfig & TCV_CFG_MDIO1) { - ASD(("internal<PSELECT,")); - hme_write32(hp, tregs + TCVR_CFG, (tconfig | TCV_CFG_PSELECT)); - ASD(("ISOLATE,")); - happy_meal_tcvr_write(hp, tregs, MII_BMCR, - (BMCR_LOOPBACK|BMCR_PDOWN|BMCR_ISOLATE)); - result = happy_meal_tcvr_read(hp, tregs, MII_BMCR); - if (result == TCVR_FAILURE) { - ASD(("phyread_fail>\n")); - return -1; - } - ASD(("phyread_ok,~PSELECT>")); - hme_write32(hp, tregs + TCVR_CFG, (tconfig & ~(TCV_CFG_PSELECT))); - hp->tcvr_type = internal; - hp->paddr = TCV_PADDR_ITX; - } - } - - ASD(("BMCR_RESET ")); - happy_meal_tcvr_write(hp, tregs, MII_BMCR, BMCR_RESET); - - while (--tries) { - result = happy_meal_tcvr_read(hp, tregs, MII_BMCR); - if (result == TCVR_FAILURE) - return -1; - hp->sw_bmcr = result; - if (!(result & BMCR_RESET)) - break; - udelay(20); - } - if (!tries) { - ASD(("BMCR RESET FAILED!\n")); - return -1; - } - ASD(("RESET_OK\n")); - - /* Get fresh copies of the PHY registers. */ - hp->sw_bmsr = happy_meal_tcvr_read(hp, tregs, MII_BMSR); - hp->sw_physid1 = happy_meal_tcvr_read(hp, tregs, MII_PHYSID1); - hp->sw_physid2 = happy_meal_tcvr_read(hp, tregs, MII_PHYSID2); - hp->sw_advertise = happy_meal_tcvr_read(hp, tregs, MII_ADVERTISE); - - ASD(("UNISOLATE")); - hp->sw_bmcr &= ~(BMCR_ISOLATE); - happy_meal_tcvr_write(hp, tregs, MII_BMCR, hp->sw_bmcr); - - tries = TCVR_UNISOLATE_TRIES; - while (--tries) { - result = happy_meal_tcvr_read(hp, tregs, MII_BMCR); - if (result == TCVR_FAILURE) - return -1; - if (!(result & BMCR_ISOLATE)) - break; - udelay(20); - } - if (!tries) { - ASD((" FAILED!\n")); - return -1; - } - ASD((" SUCCESS and CSCONFIG_DFBYPASS\n")); - if (!is_lucent_phy(hp)) { - result = happy_meal_tcvr_read(hp, tregs, - DP83840_CSCONFIG); - happy_meal_tcvr_write(hp, tregs, - DP83840_CSCONFIG, (result | CSCONFIG_DFBYPASS)); - } - return 0; -} - -/* Figure out whether we have an internal or external transceiver. - * - * hp->happy_lock must be held - */ -static void happy_meal_transceiver_check(struct happy_meal *hp, void __iomem *tregs) -{ - unsigned long tconfig = hme_read32(hp, tregs + TCVR_CFG); - - ASD(("happy_meal_transceiver_check: tcfg=%08lx ", tconfig)); - if (hp->happy_flags & HFLAG_POLL) { - /* If we are polling, we must stop to get the transceiver type. */ - ASD(("<polling> ")); - if (hp->tcvr_type == internal) { - if (tconfig & TCV_CFG_MDIO1) { - ASD(("<internal> <poll stop> ")); - happy_meal_poll_stop(hp, tregs); - hp->paddr = TCV_PADDR_ETX; - hp->tcvr_type = external; - ASD(("<external>\n")); - tconfig &= ~(TCV_CFG_PENABLE); - tconfig |= TCV_CFG_PSELECT; - hme_write32(hp, tregs + TCVR_CFG, tconfig); - } - } else { - if (hp->tcvr_type == external) { - ASD(("<external> ")); - if (!(hme_read32(hp, tregs + TCVR_STATUS) >> 16)) { - ASD(("<poll stop> ")); - happy_meal_poll_stop(hp, tregs); - hp->paddr = TCV_PADDR_ITX; - hp->tcvr_type = internal; - ASD(("<internal>\n")); - hme_write32(hp, tregs + TCVR_CFG, - hme_read32(hp, tregs + TCVR_CFG) & - ~(TCV_CFG_PSELECT)); - } - ASD(("\n")); - } else { - ASD(("<none>\n")); - } - } - } else { - u32 reread = hme_read32(hp, tregs + TCVR_CFG); - - /* Else we can just work off of the MDIO bits. */ - ASD(("<not polling> ")); - if (reread & TCV_CFG_MDIO1) { - hme_write32(hp, tregs + TCVR_CFG, tconfig | TCV_CFG_PSELECT); - hp->paddr = TCV_PADDR_ETX; - hp->tcvr_type = external; - ASD(("<external>\n")); - } else { - if (reread & TCV_CFG_MDIO0) { - hme_write32(hp, tregs + TCVR_CFG, - tconfig & ~(TCV_CFG_PSELECT)); - hp->paddr = TCV_PADDR_ITX; - hp->tcvr_type = internal; - ASD(("<internal>\n")); - } else { - printk(KERN_ERR "happy meal: Transceiver and a coke please."); - hp->tcvr_type = none; /* Grrr... */ - ASD(("<none>\n")); - } - } - } -} - -/* The receive ring buffers are a bit tricky to get right. Here goes... - * - * The buffers we dma into must be 64 byte aligned. So we use a special - * alloc_skb() routine for the happy meal to allocate 64 bytes more than - * we really need. - * - * We use skb_reserve() to align the data block we get in the skb. We - * also program the etxregs->cfg register to use an offset of 2. This - * imperical constant plus the ethernet header size will always leave - * us with a nicely aligned ip header once we pass things up to the - * protocol layers. - * - * The numbers work out to: - * - * Max ethernet frame size 1518 - * Ethernet header size 14 - * Happy Meal base offset 2 - * - * Say a skb data area is at 0xf001b010, and its size alloced is - * (ETH_FRAME_LEN + 64 + 2) = (1514 + 64 + 2) = 1580 bytes. - * - * First our alloc_skb() routine aligns the data base to a 64 byte - * boundary. We now have 0xf001b040 as our skb data address. We - * plug this into the receive descriptor address. - * - * Next, we skb_reserve() 2 bytes to account for the Happy Meal offset. - * So now the data we will end up looking at starts at 0xf001b042. When - * the packet arrives, we will check out the size received and subtract - * this from the skb->length. Then we just pass the packet up to the - * protocols as is, and allocate a new skb to replace this slot we have - * just received from. - * - * The ethernet layer will strip the ether header from the front of the - * skb we just sent to it, this leaves us with the ip header sitting - * nicely aligned at 0xf001b050. Also, for tcp and udp packets the - * Happy Meal has even checksummed the tcp/udp data for us. The 16 - * bit checksum is obtained from the low bits of the receive descriptor - * flags, thus: - * - * skb->csum = rxd->rx_flags & 0xffff; - * skb->ip_summed = CHECKSUM_COMPLETE; - * - * before sending off the skb to the protocols, and we are good as gold. - */ -static void happy_meal_clean_rings(struct happy_meal *hp) -{ - int i; - - for (i = 0; i < RX_RING_SIZE; i++) { - if (hp->rx_skbs[i] != NULL) { - struct sk_buff *skb = hp->rx_skbs[i]; - struct happy_meal_rxd *rxd; - u32 dma_addr; - - rxd = &hp->happy_block->happy_meal_rxd[i]; - dma_addr = hme_read_desc32(hp, &rxd->rx_addr); - dma_unmap_single(hp->dma_dev, dma_addr, - RX_BUF_ALLOC_SIZE, DMA_FROM_DEVICE); - dev_kfree_skb_any(skb); - hp->rx_skbs[i] = NULL; - } - } - - for (i = 0; i < TX_RING_SIZE; i++) { - if (hp->tx_skbs[i] != NULL) { - struct sk_buff *skb = hp->tx_skbs[i]; - struct happy_meal_txd *txd; - u32 dma_addr; - int frag; - - hp->tx_skbs[i] = NULL; - - for (frag = 0; frag <= skb_shinfo(skb)->nr_frags; frag++) { - txd = &hp->happy_block->happy_meal_txd[i]; - dma_addr = hme_read_desc32(hp, &txd->tx_addr); - if (!frag) - dma_unmap_single(hp->dma_dev, dma_addr, - (hme_read_desc32(hp, &txd->tx_flags) - & TXFLAG_SIZE), - DMA_TO_DEVICE); - else - dma_unmap_page(hp->dma_dev, dma_addr, - (hme_read_desc32(hp, &txd->tx_flags) - & TXFLAG_SIZE), - DMA_TO_DEVICE); - - if (frag != skb_shinfo(skb)->nr_frags) - i++; - } - - dev_kfree_skb_any(skb); - } - } -} - -/* hp->happy_lock must be held */ -static void happy_meal_init_rings(struct happy_meal *hp) -{ - struct hmeal_init_block *hb = hp->happy_block; - struct net_device *dev = hp->dev; - int i; - - HMD(("happy_meal_init_rings: counters to zero, ")); - hp->rx_new = hp->rx_old = hp->tx_new = hp->tx_old = 0; - - /* Free any skippy bufs left around in the rings. */ - HMD(("clean, ")); - happy_meal_clean_rings(hp); - - /* Now get new skippy bufs for the receive ring. */ - HMD(("init rxring, ")); - for (i = 0; i < RX_RING_SIZE; i++) { - struct sk_buff *skb; - - skb = happy_meal_alloc_skb(RX_BUF_ALLOC_SIZE, GFP_ATOMIC); - if (!skb) { - hme_write_rxd(hp, &hb->happy_meal_rxd[i], 0, 0); - continue; - } - hp->rx_skbs[i] = skb; - skb->dev = dev; - - /* Because we reserve afterwards. */ - skb_put(skb, (ETH_FRAME_LEN + RX_OFFSET + 4)); - hme_write_rxd(hp, &hb->happy_meal_rxd[i], - (RXFLAG_OWN | ((RX_BUF_ALLOC_SIZE - RX_OFFSET) << 16)), - dma_map_single(hp->dma_dev, skb->data, RX_BUF_ALLOC_SIZE, - DMA_FROM_DEVICE)); - skb_reserve(skb, RX_OFFSET); - } - - HMD(("init txring, ")); - for (i = 0; i < TX_RING_SIZE; i++) - hme_write_txd(hp, &hb->happy_meal_txd[i], 0, 0); - - HMD(("done\n")); -} - -/* hp->happy_lock must be held */ -static void happy_meal_begin_auto_negotiation(struct happy_meal *hp, - void __iomem *tregs, - struct ethtool_cmd *ep) -{ - int timeout; - - /* Read all of the registers we are interested in now. */ - hp->sw_bmsr = happy_meal_tcvr_read(hp, tregs, MII_BMSR); - hp->sw_bmcr = happy_meal_tcvr_read(hp, tregs, MII_BMCR); - hp->sw_physid1 = happy_meal_tcvr_read(hp, tregs, MII_PHYSID1); - hp->sw_physid2 = happy_meal_tcvr_read(hp, tregs, MII_PHYSID2); - - /* XXX Check BMSR_ANEGCAPABLE, should not be necessary though. */ - - hp->sw_advertise = happy_meal_tcvr_read(hp, tregs, MII_ADVERTISE); - if (ep == NULL || ep->autoneg == AUTONEG_ENABLE) { - /* Advertise everything we can support. */ - if (hp->sw_bmsr & BMSR_10HALF) - hp->sw_advertise |= (ADVERTISE_10HALF); - else - hp->sw_advertise &= ~(ADVERTISE_10HALF); - - if (hp->sw_bmsr & BMSR_10FULL) - hp->sw_advertise |= (ADVERTISE_10FULL); - else - hp->sw_advertise &= ~(ADVERTISE_10FULL); - if (hp->sw_bmsr & BMSR_100HALF) - hp->sw_advertise |= (ADVERTISE_100HALF); - else - hp->sw_advertise &= ~(ADVERTISE_100HALF); - if (hp->sw_bmsr & BMSR_100FULL) - hp->sw_advertise |= (ADVERTISE_100FULL); - else - hp->sw_advertise &= ~(ADVERTISE_100FULL); - happy_meal_tcvr_write(hp, tregs, MII_ADVERTISE, hp->sw_advertise); - - /* XXX Currently no Happy Meal cards I know off support 100BaseT4, - * XXX and this is because the DP83840 does not support it, changes - * XXX would need to be made to the tx/rx logic in the driver as well - * XXX so I completely skip checking for it in the BMSR for now. - */ - -#ifdef AUTO_SWITCH_DEBUG - ASD(("%s: Advertising [ ", hp->dev->name)); - if (hp->sw_advertise & ADVERTISE_10HALF) - ASD(("10H ")); - if (hp->sw_advertise & ADVERTISE_10FULL) - ASD(("10F ")); - if (hp->sw_advertise & ADVERTISE_100HALF) - ASD(("100H ")); - if (hp->sw_advertise & ADVERTISE_100FULL) - ASD(("100F ")); -#endif - - /* Enable Auto-Negotiation, this is usually on already... */ - hp->sw_bmcr |= BMCR_ANENABLE; - happy_meal_tcvr_write(hp, tregs, MII_BMCR, hp->sw_bmcr); - - /* Restart it to make sure it is going. */ - hp->sw_bmcr |= BMCR_ANRESTART; - happy_meal_tcvr_write(hp, tregs, MII_BMCR, hp->sw_bmcr); - - /* BMCR_ANRESTART self clears when the process has begun. */ - - timeout = 64; /* More than enough. */ - while (--timeout) { - hp->sw_bmcr = happy_meal_tcvr_read(hp, tregs, MII_BMCR); - if (!(hp->sw_bmcr & BMCR_ANRESTART)) - break; /* got it. */ - udelay(10); - } - if (!timeout) { - printk(KERN_ERR "%s: Happy Meal would not start auto negotiation " - "BMCR=0x%04x\n", hp->dev->name, hp->sw_bmcr); - printk(KERN_NOTICE "%s: Performing force link detection.\n", - hp->dev->name); - goto force_link; - } else { - hp->timer_state = arbwait; - } - } else { -force_link: - /* Force the link up, trying first a particular mode. - * Either we are here at the request of ethtool or - * because the Happy Meal would not start to autoneg. - */ - - /* Disable auto-negotiation in BMCR, enable the duplex and - * speed setting, init the timer state machine, and fire it off. - */ - if (ep == NULL || ep->autoneg == AUTONEG_ENABLE) { - hp->sw_bmcr = BMCR_SPEED100; - } else { - if (ethtool_cmd_speed(ep) == SPEED_100) - hp->sw_bmcr = BMCR_SPEED100; - else - hp->sw_bmcr = 0; - if (ep->duplex == DUPLEX_FULL) - hp->sw_bmcr |= BMCR_FULLDPLX; - } - happy_meal_tcvr_write(hp, tregs, MII_BMCR, hp->sw_bmcr); - - if (!is_lucent_phy(hp)) { - /* OK, seems we need do disable the transceiver for the first - * tick to make sure we get an accurate link state at the - * second tick. - */ - hp->sw_csconfig = happy_meal_tcvr_read(hp, tregs, - DP83840_CSCONFIG); - hp->sw_csconfig &= ~(CSCONFIG_TCVDISAB); - happy_meal_tcvr_write(hp, tregs, DP83840_CSCONFIG, - hp->sw_csconfig); - } - hp->timer_state = ltrywait; - } - - hp->timer_ticks = 0; - hp->happy_timer.expires = jiffies + (12 * HZ)/10; /* 1.2 sec. */ - hp->happy_timer.data = (unsigned long) hp; - hp->happy_timer.function = happy_meal_timer; - add_timer(&hp->happy_timer); -} - -/* hp->happy_lock must be held */ -static int happy_meal_init(struct happy_meal *hp) -{ - void __iomem *gregs = hp->gregs; - void __iomem *etxregs = hp->etxregs; - void __iomem *erxregs = hp->erxregs; - void __iomem *bregs = hp->bigmacregs; - void __iomem *tregs = hp->tcvregs; - u32 regtmp, rxcfg; - unsigned char *e = &hp->dev->dev_addr[0]; - - /* If auto-negotiation timer is running, kill it. */ - del_timer(&hp->happy_timer); - - HMD(("happy_meal_init: happy_flags[%08x] ", - hp->happy_flags)); - if (!(hp->happy_flags & HFLAG_INIT)) { - HMD(("set HFLAG_INIT, ")); - hp->happy_flags |= HFLAG_INIT; - happy_meal_get_counters(hp, bregs); - } - - /* Stop polling. */ - HMD(("to happy_meal_poll_stop\n")); - happy_meal_poll_stop(hp, tregs); - - /* Stop transmitter and receiver. */ - HMD(("happy_meal_init: to happy_meal_stop\n")); - happy_meal_stop(hp, gregs); - - /* Alloc and reset the tx/rx descriptor chains. */ - HMD(("happy_meal_init: to happy_meal_init_rings\n")); - happy_meal_init_rings(hp); - - /* Shut up the MIF. */ - HMD(("happy_meal_init: Disable all MIF irqs (old[%08x]), ", - hme_read32(hp, tregs + TCVR_IMASK))); - hme_write32(hp, tregs + TCVR_IMASK, 0xffff); - - /* See if we can enable the MIF frame on this card to speak to the DP83840. */ - if (hp->happy_flags & HFLAG_FENABLE) { - HMD(("use frame old[%08x], ", - hme_read32(hp, tregs + TCVR_CFG))); - hme_write32(hp, tregs + TCVR_CFG, - hme_read32(hp, tregs + TCVR_CFG) & ~(TCV_CFG_BENABLE)); - } else { - HMD(("use bitbang old[%08x], ", - hme_read32(hp, tregs + TCVR_CFG))); - hme_write32(hp, tregs + TCVR_CFG, - hme_read32(hp, tregs + TCVR_CFG) | TCV_CFG_BENABLE); - } - - /* Check the state of the transceiver. */ - HMD(("to happy_meal_transceiver_check\n")); - happy_meal_transceiver_check(hp, tregs); - - /* Put the Big Mac into a sane state. */ - HMD(("happy_meal_init: ")); - switch(hp->tcvr_type) { - case none: - /* Cannot operate if we don't know the transceiver type! */ - HMD(("AAIEEE no transceiver type, EAGAIN")); - return -EAGAIN; - - case internal: - /* Using the MII buffers. */ - HMD(("internal, using MII, ")); - hme_write32(hp, bregs + BMAC_XIFCFG, 0); - break; - - case external: - /* Not using the MII, disable it. */ - HMD(("external, disable MII, ")); - hme_write32(hp, bregs + BMAC_XIFCFG, BIGMAC_XCFG_MIIDISAB); - break; - } - - if (happy_meal_tcvr_reset(hp, tregs)) - return -EAGAIN; - - /* Reset the Happy Meal Big Mac transceiver and the receiver. */ - HMD(("tx/rx reset, ")); - happy_meal_tx_reset(hp, bregs); - happy_meal_rx_reset(hp, bregs); - - /* Set jam size and inter-packet gaps to reasonable defaults. */ - HMD(("jsize/ipg1/ipg2, ")); - hme_write32(hp, bregs + BMAC_JSIZE, DEFAULT_JAMSIZE); - hme_write32(hp, bregs + BMAC_IGAP1, DEFAULT_IPG1); - hme_write32(hp, bregs + BMAC_IGAP2, DEFAULT_IPG2); - - /* Load up the MAC address and random seed. */ - HMD(("rseed/macaddr, ")); - - /* The docs recommend to use the 10LSB of our MAC here. */ - hme_write32(hp, bregs + BMAC_RSEED, ((e[5] | e[4]<<8)&0x3ff)); - - hme_write32(hp, bregs + BMAC_MACADDR2, ((e[4] << 8) | e[5])); - hme_write32(hp, bregs + BMAC_MACADDR1, ((e[2] << 8) | e[3])); - hme_write32(hp, bregs + BMAC_MACADDR0, ((e[0] << 8) | e[1])); - - HMD(("htable, ")); - if ((hp->dev->flags & IFF_ALLMULTI) || - (netdev_mc_count(hp->dev) > 64)) { - hme_write32(hp, bregs + BMAC_HTABLE0, 0xffff); - hme_write32(hp, bregs + BMAC_HTABLE1, 0xffff); - hme_write32(hp, bregs + BMAC_HTABLE2, 0xffff); - hme_write32(hp, bregs + BMAC_HTABLE3, 0xffff); - } else if ((hp->dev->flags & IFF_PROMISC) == 0) { - u16 hash_table[4]; - struct netdev_hw_addr *ha; - u32 crc; - - memset(hash_table, 0, sizeof(hash_table)); - netdev_for_each_mc_addr(ha, hp->dev) { - crc = ether_crc_le(6, ha->addr); - crc >>= 26; - hash_table[crc >> 4] |= 1 << (crc & 0xf); - } - hme_write32(hp, bregs + BMAC_HTABLE0, hash_table[0]); - hme_write32(hp, bregs + BMAC_HTABLE1, hash_table[1]); - hme_write32(hp, bregs + BMAC_HTABLE2, hash_table[2]); - hme_write32(hp, bregs + BMAC_HTABLE3, hash_table[3]); - } else { - hme_write32(hp, bregs + BMAC_HTABLE3, 0); - hme_write32(hp, bregs + BMAC_HTABLE2, 0); - hme_write32(hp, bregs + BMAC_HTABLE1, 0); - hme_write32(hp, bregs + BMAC_HTABLE0, 0); - } - - /* Set the RX and TX ring ptrs. */ - HMD(("ring ptrs rxr[%08x] txr[%08x]\n", - ((__u32)hp->hblock_dvma + hblock_offset(happy_meal_rxd, 0)), - ((__u32)hp->hblock_dvma + hblock_offset(happy_meal_txd, 0)))); - hme_write32(hp, erxregs + ERX_RING, - ((__u32)hp->hblock_dvma + hblock_offset(happy_meal_rxd, 0))); - hme_write32(hp, etxregs + ETX_RING, - ((__u32)hp->hblock_dvma + hblock_offset(happy_meal_txd, 0))); - - /* Parity issues in the ERX unit of some HME revisions can cause some - * registers to not be written unless their parity is even. Detect such - * lost writes and simply rewrite with a low bit set (which will be ignored - * since the rxring needs to be 2K aligned). - */ - if (hme_read32(hp, erxregs + ERX_RING) != - ((__u32)hp->hblock_dvma + hblock_offset(happy_meal_rxd, 0))) - hme_write32(hp, erxregs + ERX_RING, - ((__u32)hp->hblock_dvma + hblock_offset(happy_meal_rxd, 0)) - | 0x4); - - /* Set the supported burst sizes. */ - HMD(("happy_meal_init: old[%08x] bursts<", - hme_read32(hp, gregs + GREG_CFG))); - -#ifndef CONFIG_SPARC - /* It is always PCI and can handle 64byte bursts. */ - hme_write32(hp, gregs + GREG_CFG, GREG_CFG_BURST64); -#else - if ((hp->happy_bursts & DMA_BURST64) && - ((hp->happy_flags & HFLAG_PCI) != 0 -#ifdef CONFIG_SBUS - || sbus_can_burst64() -#endif - || 0)) { - u32 gcfg = GREG_CFG_BURST64; - - /* I have no idea if I should set the extended - * transfer mode bit for Cheerio, so for now I - * do not. -DaveM - */ -#ifdef CONFIG_SBUS - if ((hp->happy_flags & HFLAG_PCI) == 0) { - struct platform_device *op = hp->happy_dev; - if (sbus_can_dma_64bit()) { - sbus_set_sbus64(&op->dev, - hp->happy_bursts); - gcfg |= GREG_CFG_64BIT; - } - } -#endif - - HMD(("64>")); - hme_write32(hp, gregs + GREG_CFG, gcfg); - } else if (hp->happy_bursts & DMA_BURST32) { - HMD(("32>")); - hme_write32(hp, gregs + GREG_CFG, GREG_CFG_BURST32); - } else if (hp->happy_bursts & DMA_BURST16) { - HMD(("16>")); - hme_write32(hp, gregs + GREG_CFG, GREG_CFG_BURST16); - } else { - HMD(("XXX>")); - hme_write32(hp, gregs + GREG_CFG, 0); - } -#endif /* CONFIG_SPARC */ - - /* Turn off interrupts we do not want to hear. */ - HMD((", enable global interrupts, ")); - hme_write32(hp, gregs + GREG_IMASK, - (GREG_IMASK_GOTFRAME | GREG_IMASK_RCNTEXP | - GREG_IMASK_SENTFRAME | GREG_IMASK_TXPERR)); - - /* Set the transmit ring buffer size. */ - HMD(("tx rsize=%d oreg[%08x], ", (int)TX_RING_SIZE, - hme_read32(hp, etxregs + ETX_RSIZE))); - hme_write32(hp, etxregs + ETX_RSIZE, (TX_RING_SIZE >> ETX_RSIZE_SHIFT) - 1); - - /* Enable transmitter DVMA. */ - HMD(("tx dma enable old[%08x], ", - hme_read32(hp, etxregs + ETX_CFG))); - hme_write32(hp, etxregs + ETX_CFG, - hme_read32(hp, etxregs + ETX_CFG) | ETX_CFG_DMAENABLE); - - /* This chip really rots, for the receiver sometimes when you - * write to its control registers not all the bits get there - * properly. I cannot think of a sane way to provide complete - * coverage for this hardware bug yet. - */ - HMD(("erx regs bug old[%08x]\n", - hme_read32(hp, erxregs + ERX_CFG))); - hme_write32(hp, erxregs + ERX_CFG, ERX_CFG_DEFAULT(RX_OFFSET)); - regtmp = hme_read32(hp, erxregs + ERX_CFG); - hme_write32(hp, erxregs + ERX_CFG, ERX_CFG_DEFAULT(RX_OFFSET)); - if (hme_read32(hp, erxregs + ERX_CFG) != ERX_CFG_DEFAULT(RX_OFFSET)) { - printk(KERN_ERR "happy meal: Eieee, rx config register gets greasy fries.\n"); - printk(KERN_ERR "happy meal: Trying to set %08x, reread gives %08x\n", - ERX_CFG_DEFAULT(RX_OFFSET), regtmp); - /* XXX Should return failure here... */ - } - - /* Enable Big Mac hash table filter. */ - HMD(("happy_meal_init: enable hash rx_cfg_old[%08x], ", - hme_read32(hp, bregs + BMAC_RXCFG))); - rxcfg = BIGMAC_RXCFG_HENABLE | BIGMAC_RXCFG_REJME; - if (hp->dev->flags & IFF_PROMISC) - rxcfg |= BIGMAC_RXCFG_PMISC; - hme_write32(hp, bregs + BMAC_RXCFG, rxcfg); - - /* Let the bits settle in the chip. */ - udelay(10); - - /* Ok, configure the Big Mac transmitter. */ - HMD(("BIGMAC init, ")); - regtmp = 0; - if (hp->happy_flags & HFLAG_FULL) - regtmp |= BIGMAC_TXCFG_FULLDPLX; - - /* Don't turn on the "don't give up" bit for now. It could cause hme - * to deadlock with the PHY if a Jabber occurs. - */ - hme_write32(hp, bregs + BMAC_TXCFG, regtmp /*| BIGMAC_TXCFG_DGIVEUP*/); - - /* Give up after 16 TX attempts. */ - hme_write32(hp, bregs + BMAC_ALIMIT, 16); - - /* Enable the output drivers no matter what. */ - regtmp = BIGMAC_XCFG_ODENABLE; - - /* If card can do lance mode, enable it. */ - if (hp->happy_flags & HFLAG_LANCE) - regtmp |= (DEFAULT_IPG0 << 5) | BIGMAC_XCFG_LANCE; - - /* Disable the MII buffers if using external transceiver. */ - if (hp->tcvr_type == external) - regtmp |= BIGMAC_XCFG_MIIDISAB; - - HMD(("XIF config old[%08x], ", - hme_read32(hp, bregs + BMAC_XIFCFG))); - hme_write32(hp, bregs + BMAC_XIFCFG, regtmp); - - /* Start things up. */ - HMD(("tx old[%08x] and rx [%08x] ON!\n", - hme_read32(hp, bregs + BMAC_TXCFG), - hme_read32(hp, bregs + BMAC_RXCFG))); - - /* Set larger TX/RX size to allow for 802.1q */ - hme_write32(hp, bregs + BMAC_TXMAX, ETH_FRAME_LEN + 8); - hme_write32(hp, bregs + BMAC_RXMAX, ETH_FRAME_LEN + 8); - - hme_write32(hp, bregs + BMAC_TXCFG, - hme_read32(hp, bregs + BMAC_TXCFG) | BIGMAC_TXCFG_ENABLE); - hme_write32(hp, bregs + BMAC_RXCFG, - hme_read32(hp, bregs + BMAC_RXCFG) | BIGMAC_RXCFG_ENABLE); - - /* Get the autonegotiation started, and the watch timer ticking. */ - happy_meal_begin_auto_negotiation(hp, tregs, NULL); - - /* Success. */ - return 0; -} - -/* hp->happy_lock must be held */ -static void happy_meal_set_initial_advertisement(struct happy_meal *hp) -{ - void __iomem *tregs = hp->tcvregs; - void __iomem *bregs = hp->bigmacregs; - void __iomem *gregs = hp->gregs; - - happy_meal_stop(hp, gregs); - hme_write32(hp, tregs + TCVR_IMASK, 0xffff); - if (hp->happy_flags & HFLAG_FENABLE) - hme_write32(hp, tregs + TCVR_CFG, - hme_read32(hp, tregs + TCVR_CFG) & ~(TCV_CFG_BENABLE)); - else - hme_write32(hp, tregs + TCVR_CFG, - hme_read32(hp, tregs + TCVR_CFG) | TCV_CFG_BENABLE); - happy_meal_transceiver_check(hp, tregs); - switch(hp->tcvr_type) { - case none: - return; - case internal: - hme_write32(hp, bregs + BMAC_XIFCFG, 0); - break; - case external: - hme_write32(hp, bregs + BMAC_XIFCFG, BIGMAC_XCFG_MIIDISAB); - break; - } - if (happy_meal_tcvr_reset(hp, tregs)) - return; - - /* Latch PHY registers as of now. */ - hp->sw_bmsr = happy_meal_tcvr_read(hp, tregs, MII_BMSR); - hp->sw_advertise = happy_meal_tcvr_read(hp, tregs, MII_ADVERTISE); - - /* Advertise everything we can support. */ - if (hp->sw_bmsr & BMSR_10HALF) - hp->sw_advertise |= (ADVERTISE_10HALF); - else - hp->sw_advertise &= ~(ADVERTISE_10HALF); - - if (hp->sw_bmsr & BMSR_10FULL) - hp->sw_advertise |= (ADVERTISE_10FULL); - else - hp->sw_advertise &= ~(ADVERTISE_10FULL); - if (hp->sw_bmsr & BMSR_100HALF) - hp->sw_advertise |= (ADVERTISE_100HALF); - else - hp->sw_advertise &= ~(ADVERTISE_100HALF); - if (hp->sw_bmsr & BMSR_100FULL) - hp->sw_advertise |= (ADVERTISE_100FULL); - else - hp->sw_advertise &= ~(ADVERTISE_100FULL); - - /* Update the PHY advertisement register. */ - happy_meal_tcvr_write(hp, tregs, MII_ADVERTISE, hp->sw_advertise); -} - -/* Once status is latched (by happy_meal_interrupt) it is cleared by - * the hardware, so we cannot re-read it and get a correct value. - * - * hp->happy_lock must be held - */ -static int happy_meal_is_not_so_happy(struct happy_meal *hp, u32 status) -{ - int reset = 0; - - /* Only print messages for non-counter related interrupts. */ - if (status & (GREG_STAT_STSTERR | GREG_STAT_TFIFO_UND | - GREG_STAT_MAXPKTERR | GREG_STAT_RXERR | - GREG_STAT_RXPERR | GREG_STAT_RXTERR | GREG_STAT_EOPERR | - GREG_STAT_MIFIRQ | GREG_STAT_TXEACK | GREG_STAT_TXLERR | - GREG_STAT_TXPERR | GREG_STAT_TXTERR | GREG_STAT_SLVERR | - GREG_STAT_SLVPERR)) - printk(KERN_ERR "%s: Error interrupt for happy meal, status = %08x\n", - hp->dev->name, status); - - if (status & GREG_STAT_RFIFOVF) { - /* Receive FIFO overflow is harmless and the hardware will take - care of it, just some packets are lost. Who cares. */ - printk(KERN_DEBUG "%s: Happy Meal receive FIFO overflow.\n", hp->dev->name); - } - - if (status & GREG_STAT_STSTERR) { - /* BigMAC SQE link test failed. */ - printk(KERN_ERR "%s: Happy Meal BigMAC SQE test failed.\n", hp->dev->name); - reset = 1; - } - - if (status & GREG_STAT_TFIFO_UND) { - /* Transmit FIFO underrun, again DMA error likely. */ - printk(KERN_ERR "%s: Happy Meal transmitter FIFO underrun, DMA error.\n", - hp->dev->name); - reset = 1; - } - - if (status & GREG_STAT_MAXPKTERR) { - /* Driver error, tried to transmit something larger - * than ethernet max mtu. - */ - printk(KERN_ERR "%s: Happy Meal MAX Packet size error.\n", hp->dev->name); - reset = 1; - } - - if (status & GREG_STAT_NORXD) { - /* This is harmless, it just means the system is - * quite loaded and the incoming packet rate was - * faster than the interrupt handler could keep up - * with. - */ - printk(KERN_INFO "%s: Happy Meal out of receive " - "descriptors, packet dropped.\n", - hp->dev->name); - } - - if (status & (GREG_STAT_RXERR|GREG_STAT_RXPERR|GREG_STAT_RXTERR)) { - /* All sorts of DMA receive errors. */ - printk(KERN_ERR "%s: Happy Meal rx DMA errors [ ", hp->dev->name); - if (status & GREG_STAT_RXERR) - printk("GenericError "); - if (status & GREG_STAT_RXPERR) - printk("ParityError "); - if (status & GREG_STAT_RXTERR) - printk("RxTagBotch "); - printk("]\n"); - reset = 1; - } - - if (status & GREG_STAT_EOPERR) { - /* Driver bug, didn't set EOP bit in tx descriptor given - * to the happy meal. - */ - printk(KERN_ERR "%s: EOP not set in happy meal transmit descriptor!\n", - hp->dev->name); - reset = 1; - } - - if (status & GREG_STAT_MIFIRQ) { - /* MIF signalled an interrupt, were we polling it? */ - printk(KERN_ERR "%s: Happy Meal MIF interrupt.\n", hp->dev->name); - } - - if (status & - (GREG_STAT_TXEACK|GREG_STAT_TXLERR|GREG_STAT_TXPERR|GREG_STAT_TXTERR)) { - /* All sorts of transmit DMA errors. */ - printk(KERN_ERR "%s: Happy Meal tx DMA errors [ ", hp->dev->name); - if (status & GREG_STAT_TXEACK) - printk("GenericError "); - if (status & GREG_STAT_TXLERR) - printk("LateError "); - if (status & GREG_STAT_TXPERR) - printk("ParityErro "); - if (status & GREG_STAT_TXTERR) - printk("TagBotch "); - printk("]\n"); - reset = 1; - } - - if (status & (GREG_STAT_SLVERR|GREG_STAT_SLVPERR)) { - /* Bus or parity error when cpu accessed happy meal registers - * or it's internal FIFO's. Should never see this. - */ - printk(KERN_ERR "%s: Happy Meal register access SBUS slave (%s) error.\n", - hp->dev->name, - (status & GREG_STAT_SLVPERR) ? "parity" : "generic"); - reset = 1; - } - - if (reset) { - printk(KERN_NOTICE "%s: Resetting...\n", hp->dev->name); - happy_meal_init(hp); - return 1; - } - return 0; -} - -/* hp->happy_lock must be held */ -static void happy_meal_mif_interrupt(struct happy_meal *hp) -{ - void __iomem *tregs = hp->tcvregs; - - printk(KERN_INFO "%s: Link status change.\n", hp->dev->name); - hp->sw_bmcr = happy_meal_tcvr_read(hp, tregs, MII_BMCR); - hp->sw_lpa = happy_meal_tcvr_read(hp, tregs, MII_LPA); - - /* Use the fastest transmission protocol possible. */ - if (hp->sw_lpa & LPA_100FULL) { - printk(KERN_INFO "%s: Switching to 100Mbps at full duplex.", hp->dev->name); - hp->sw_bmcr |= (BMCR_FULLDPLX | BMCR_SPEED100); - } else if (hp->sw_lpa & LPA_100HALF) { - printk(KERN_INFO "%s: Switching to 100MBps at half duplex.", hp->dev->name); - hp->sw_bmcr |= BMCR_SPEED100; - } else if (hp->sw_lpa & LPA_10FULL) { - printk(KERN_INFO "%s: Switching to 10MBps at full duplex.", hp->dev->name); - hp->sw_bmcr |= BMCR_FULLDPLX; - } else { - printk(KERN_INFO "%s: Using 10Mbps at half duplex.", hp->dev->name); - } - happy_meal_tcvr_write(hp, tregs, MII_BMCR, hp->sw_bmcr); - - /* Finally stop polling and shut up the MIF. */ - happy_meal_poll_stop(hp, tregs); -} - -#ifdef TXDEBUG -#define TXD(x) printk x -#else -#define TXD(x) -#endif - -/* hp->happy_lock must be held */ -static void happy_meal_tx(struct happy_meal *hp) -{ - struct happy_meal_txd *txbase = &hp->happy_block->happy_meal_txd[0]; - struct happy_meal_txd *this; - struct net_device *dev = hp->dev; - int elem; - - elem = hp->tx_old; - TXD(("TX<")); - while (elem != hp->tx_new) { - struct sk_buff *skb; - u32 flags, dma_addr, dma_len; - int frag; - - TXD(("[%d]", elem)); - this = &txbase[elem]; - flags = hme_read_desc32(hp, &this->tx_flags); - if (flags & TXFLAG_OWN) - break; - skb = hp->tx_skbs[elem]; - if (skb_shinfo(skb)->nr_frags) { - int last; - - last = elem + skb_shinfo(skb)->nr_frags; - last &= (TX_RING_SIZE - 1); - flags = hme_read_desc32(hp, &txbase[last].tx_flags); - if (flags & TXFLAG_OWN) - break; - } - hp->tx_skbs[elem] = NULL; - hp->net_stats.tx_bytes += skb->len; - - for (frag = 0; frag <= skb_shinfo(skb)->nr_frags; frag++) { - dma_addr = hme_read_desc32(hp, &this->tx_addr); - dma_len = hme_read_desc32(hp, &this->tx_flags); - - dma_len &= TXFLAG_SIZE; - if (!frag) - dma_unmap_single(hp->dma_dev, dma_addr, dma_len, DMA_TO_DEVICE); - else - dma_unmap_page(hp->dma_dev, dma_addr, dma_len, DMA_TO_DEVICE); - - elem = NEXT_TX(elem); - this = &txbase[elem]; - } - - dev_kfree_skb_irq(skb); - hp->net_stats.tx_packets++; - } - hp->tx_old = elem; - TXD((">")); - - if (netif_queue_stopped(dev) && - TX_BUFFS_AVAIL(hp) > (MAX_SKB_FRAGS + 1)) - netif_wake_queue(dev); -} - -#ifdef RXDEBUG -#define RXD(x) printk x -#else -#define RXD(x) -#endif - -/* Originally I used to handle the allocation failure by just giving back just - * that one ring buffer to the happy meal. Problem is that usually when that - * condition is triggered, the happy meal expects you to do something reasonable - * with all of the packets it has DMA'd in. So now I just drop the entire - * ring when we cannot get a new skb and give them all back to the happy meal, - * maybe things will be "happier" now. - * - * hp->happy_lock must be held - */ -static void happy_meal_rx(struct happy_meal *hp, struct net_device *dev) -{ - struct happy_meal_rxd *rxbase = &hp->happy_block->happy_meal_rxd[0]; - struct happy_meal_rxd *this; - int elem = hp->rx_new, drops = 0; - u32 flags; - - RXD(("RX<")); - this = &rxbase[elem]; - while (!((flags = hme_read_desc32(hp, &this->rx_flags)) & RXFLAG_OWN)) { - struct sk_buff *skb; - int len = flags >> 16; - u16 csum = flags & RXFLAG_CSUM; - u32 dma_addr = hme_read_desc32(hp, &this->rx_addr); - - RXD(("[%d ", elem)); - - /* Check for errors. */ - if ((len < ETH_ZLEN) || (flags & RXFLAG_OVERFLOW)) { - RXD(("ERR(%08x)]", flags)); - hp->net_stats.rx_errors++; - if (len < ETH_ZLEN) - hp->net_stats.rx_length_errors++; - if (len & (RXFLAG_OVERFLOW >> 16)) { - hp->net_stats.rx_over_errors++; - hp->net_stats.rx_fifo_errors++; - } - - /* Return it to the Happy meal. */ - drop_it: - hp->net_stats.rx_dropped++; - hme_write_rxd(hp, this, - (RXFLAG_OWN|((RX_BUF_ALLOC_SIZE-RX_OFFSET)<<16)), - dma_addr); - goto next; - } - skb = hp->rx_skbs[elem]; - if (len > RX_COPY_THRESHOLD) { - struct sk_buff *new_skb; - - /* Now refill the entry, if we can. */ - new_skb = happy_meal_alloc_skb(RX_BUF_ALLOC_SIZE, GFP_ATOMIC); - if (new_skb == NULL) { - drops++; - goto drop_it; - } - dma_unmap_single(hp->dma_dev, dma_addr, RX_BUF_ALLOC_SIZE, DMA_FROM_DEVICE); - hp->rx_skbs[elem] = new_skb; - new_skb->dev = dev; - skb_put(new_skb, (ETH_FRAME_LEN + RX_OFFSET + 4)); - hme_write_rxd(hp, this, - (RXFLAG_OWN|((RX_BUF_ALLOC_SIZE-RX_OFFSET)<<16)), - dma_map_single(hp->dma_dev, new_skb->data, RX_BUF_ALLOC_SIZE, - DMA_FROM_DEVICE)); - skb_reserve(new_skb, RX_OFFSET); - - /* Trim the original skb for the netif. */ - skb_trim(skb, len); - } else { - struct sk_buff *copy_skb = dev_alloc_skb(len + 2); - - if (copy_skb == NULL) { - drops++; - goto drop_it; - } - - skb_reserve(copy_skb, 2); - skb_put(copy_skb, len); - dma_sync_single_for_cpu(hp->dma_dev, dma_addr, len, DMA_FROM_DEVICE); - skb_copy_from_linear_data(skb, copy_skb->data, len); - dma_sync_single_for_device(hp->dma_dev, dma_addr, len, DMA_FROM_DEVICE); - /* Reuse original ring buffer. */ - hme_write_rxd(hp, this, - (RXFLAG_OWN|((RX_BUF_ALLOC_SIZE-RX_OFFSET)<<16)), - dma_addr); - - skb = copy_skb; - } - - /* This card is _fucking_ hot... */ - skb->csum = csum_unfold(~(__force __sum16)htons(csum)); - skb->ip_summed = CHECKSUM_COMPLETE; - - RXD(("len=%d csum=%4x]", len, csum)); - skb->protocol = eth_type_trans(skb, dev); - netif_rx(skb); - - hp->net_stats.rx_packets++; - hp->net_stats.rx_bytes += len; - next: - elem = NEXT_RX(elem); - this = &rxbase[elem]; - } - hp->rx_new = elem; - if (drops) - printk(KERN_INFO "%s: Memory squeeze, deferring packet.\n", hp->dev->name); - RXD((">")); -} - -static irqreturn_t happy_meal_interrupt(int irq, void *dev_id) -{ - struct net_device *dev = dev_id; - struct happy_meal *hp = netdev_priv(dev); - u32 happy_status = hme_read32(hp, hp->gregs + GREG_STAT); - - HMD(("happy_meal_interrupt: status=%08x ", happy_status)); - - spin_lock(&hp->happy_lock); - - if (happy_status & GREG_STAT_ERRORS) { - HMD(("ERRORS ")); - if (happy_meal_is_not_so_happy(hp, /* un- */ happy_status)) - goto out; - } - - if (happy_status & GREG_STAT_MIFIRQ) { - HMD(("MIFIRQ ")); - happy_meal_mif_interrupt(hp); - } - - if (happy_status & GREG_STAT_TXALL) { - HMD(("TXALL ")); - happy_meal_tx(hp); - } - - if (happy_status & GREG_STAT_RXTOHOST) { - HMD(("RXTOHOST ")); - happy_meal_rx(hp, dev); - } - - HMD(("done\n")); -out: - spin_unlock(&hp->happy_lock); - - return IRQ_HANDLED; -} - -#ifdef CONFIG_SBUS -static irqreturn_t quattro_sbus_interrupt(int irq, void *cookie) -{ - struct quattro *qp = (struct quattro *) cookie; - int i; - - for (i = 0; i < 4; i++) { - struct net_device *dev = qp->happy_meals[i]; - struct happy_meal *hp = netdev_priv(dev); - u32 happy_status = hme_read32(hp, hp->gregs + GREG_STAT); - - HMD(("quattro_interrupt: status=%08x ", happy_status)); - - if (!(happy_status & (GREG_STAT_ERRORS | - GREG_STAT_MIFIRQ | - GREG_STAT_TXALL | - GREG_STAT_RXTOHOST))) - continue; - - spin_lock(&hp->happy_lock); - - if (happy_status & GREG_STAT_ERRORS) { - HMD(("ERRORS ")); - if (happy_meal_is_not_so_happy(hp, happy_status)) - goto next; - } - - if (happy_status & GREG_STAT_MIFIRQ) { - HMD(("MIFIRQ ")); - happy_meal_mif_interrupt(hp); - } - - if (happy_status & GREG_STAT_TXALL) { - HMD(("TXALL ")); - happy_meal_tx(hp); - } - - if (happy_status & GREG_STAT_RXTOHOST) { - HMD(("RXTOHOST ")); - happy_meal_rx(hp, dev); - } - - next: - spin_unlock(&hp->happy_lock); - } - HMD(("done\n")); - - return IRQ_HANDLED; -} -#endif - -static int happy_meal_open(struct net_device *dev) -{ - struct happy_meal *hp = netdev_priv(dev); - int res; - - HMD(("happy_meal_open: ")); - - /* On SBUS Quattro QFE cards, all hme interrupts are concentrated - * into a single source which we register handling at probe time. - */ - if ((hp->happy_flags & (HFLAG_QUATTRO|HFLAG_PCI)) != HFLAG_QUATTRO) { - if (request_irq(dev->irq, happy_meal_interrupt, - IRQF_SHARED, dev->name, (void *)dev)) { - HMD(("EAGAIN\n")); - printk(KERN_ERR "happy_meal(SBUS): Can't order irq %d to go.\n", - dev->irq); - - return -EAGAIN; - } - } - - HMD(("to happy_meal_init\n")); - - spin_lock_irq(&hp->happy_lock); - res = happy_meal_init(hp); - spin_unlock_irq(&hp->happy_lock); - - if (res && ((hp->happy_flags & (HFLAG_QUATTRO|HFLAG_PCI)) != HFLAG_QUATTRO)) - free_irq(dev->irq, dev); - return res; -} - -static int happy_meal_close(struct net_device *dev) -{ - struct happy_meal *hp = netdev_priv(dev); - - spin_lock_irq(&hp->happy_lock); - happy_meal_stop(hp, hp->gregs); - happy_meal_clean_rings(hp); - - /* If auto-negotiation timer is running, kill it. */ - del_timer(&hp->happy_timer); - - spin_unlock_irq(&hp->happy_lock); - - /* On Quattro QFE cards, all hme interrupts are concentrated - * into a single source which we register handling at probe - * time and never unregister. - */ - if ((hp->happy_flags & (HFLAG_QUATTRO|HFLAG_PCI)) != HFLAG_QUATTRO) - free_irq(dev->irq, dev); - - return 0; -} - -#ifdef SXDEBUG -#define SXD(x) printk x -#else -#define SXD(x) -#endif - -static void happy_meal_tx_timeout(struct net_device *dev) -{ - struct happy_meal *hp = netdev_priv(dev); - - printk (KERN_ERR "%s: transmit timed out, resetting\n", dev->name); - tx_dump_log(); - printk (KERN_ERR "%s: Happy Status %08x TX[%08x:%08x]\n", dev->name, - hme_read32(hp, hp->gregs + GREG_STAT), - hme_read32(hp, hp->etxregs + ETX_CFG), - hme_read32(hp, hp->bigmacregs + BMAC_TXCFG)); - - spin_lock_irq(&hp->happy_lock); - happy_meal_init(hp); - spin_unlock_irq(&hp->happy_lock); - - netif_wake_queue(dev); -} - -static netdev_tx_t happy_meal_start_xmit(struct sk_buff *skb, - struct net_device *dev) -{ - struct happy_meal *hp = netdev_priv(dev); - int entry; - u32 tx_flags; - - tx_flags = TXFLAG_OWN; - if (skb->ip_summed == CHECKSUM_PARTIAL) { - const u32 csum_start_off = skb_checksum_start_offset(skb); - const u32 csum_stuff_off = csum_start_off + skb->csum_offset; - - tx_flags = (TXFLAG_OWN | TXFLAG_CSENABLE | - ((csum_start_off << 14) & TXFLAG_CSBUFBEGIN) | - ((csum_stuff_off << 20) & TXFLAG_CSLOCATION)); - } - - spin_lock_irq(&hp->happy_lock); - - if (TX_BUFFS_AVAIL(hp) <= (skb_shinfo(skb)->nr_frags + 1)) { - netif_stop_queue(dev); - spin_unlock_irq(&hp->happy_lock); - printk(KERN_ERR "%s: BUG! Tx Ring full when queue awake!\n", - dev->name); - return NETDEV_TX_BUSY; - } - - entry = hp->tx_new; - SXD(("SX<l[%d]e[%d]>", len, entry)); - hp->tx_skbs[entry] = skb; - - if (skb_shinfo(skb)->nr_frags == 0) { - u32 mapping, len; - - len = skb->len; - mapping = dma_map_single(hp->dma_dev, skb->data, len, DMA_TO_DEVICE); - tx_flags |= (TXFLAG_SOP | TXFLAG_EOP); - hme_write_txd(hp, &hp->happy_block->happy_meal_txd[entry], - (tx_flags | (len & TXFLAG_SIZE)), - mapping); - entry = NEXT_TX(entry); - } else { - u32 first_len, first_mapping; - int frag, first_entry = entry; - - /* We must give this initial chunk to the device last. - * Otherwise we could race with the device. - */ - first_len = skb_headlen(skb); - first_mapping = dma_map_single(hp->dma_dev, skb->data, first_len, - DMA_TO_DEVICE); - entry = NEXT_TX(entry); - - for (frag = 0; frag < skb_shinfo(skb)->nr_frags; frag++) { - skb_frag_t *this_frag = &skb_shinfo(skb)->frags[frag]; - u32 len, mapping, this_txflags; - - len = this_frag->size; - mapping = dma_map_page(hp->dma_dev, this_frag->page, - this_frag->page_offset, len, - DMA_TO_DEVICE); - this_txflags = tx_flags; - if (frag == skb_shinfo(skb)->nr_frags - 1) - this_txflags |= TXFLAG_EOP; - hme_write_txd(hp, &hp->happy_block->happy_meal_txd[entry], - (this_txflags | (len & TXFLAG_SIZE)), - mapping); - entry = NEXT_TX(entry); - } - hme_write_txd(hp, &hp->happy_block->happy_meal_txd[first_entry], - (tx_flags | TXFLAG_SOP | (first_len & TXFLAG_SIZE)), - first_mapping); - } - - hp->tx_new = entry; - - if (TX_BUFFS_AVAIL(hp) <= (MAX_SKB_FRAGS + 1)) - netif_stop_queue(dev); - - /* Get it going. */ - hme_write32(hp, hp->etxregs + ETX_PENDING, ETX_TP_DMAWAKEUP); - - spin_unlock_irq(&hp->happy_lock); - - tx_add_log(hp, TXLOG_ACTION_TXMIT, 0); - return NETDEV_TX_OK; -} - -static struct net_device_stats *happy_meal_get_stats(struct net_device *dev) -{ - struct happy_meal *hp = netdev_priv(dev); - - spin_lock_irq(&hp->happy_lock); - happy_meal_get_counters(hp, hp->bigmacregs); - spin_unlock_irq(&hp->happy_lock); - - return &hp->net_stats; -} - -static void happy_meal_set_multicast(struct net_device *dev) -{ - struct happy_meal *hp = netdev_priv(dev); - void __iomem *bregs = hp->bigmacregs; - struct netdev_hw_addr *ha; - u32 crc; - - spin_lock_irq(&hp->happy_lock); - - if ((dev->flags & IFF_ALLMULTI) || (netdev_mc_count(dev) > 64)) { - hme_write32(hp, bregs + BMAC_HTABLE0, 0xffff); - hme_write32(hp, bregs + BMAC_HTABLE1, 0xffff); - hme_write32(hp, bregs + BMAC_HTABLE2, 0xffff); - hme_write32(hp, bregs + BMAC_HTABLE3, 0xffff); - } else if (dev->flags & IFF_PROMISC) { - hme_write32(hp, bregs + BMAC_RXCFG, - hme_read32(hp, bregs + BMAC_RXCFG) | BIGMAC_RXCFG_PMISC); - } else { - u16 hash_table[4]; - - memset(hash_table, 0, sizeof(hash_table)); - netdev_for_each_mc_addr(ha, dev) { - crc = ether_crc_le(6, ha->addr); - crc >>= 26; - hash_table[crc >> 4] |= 1 << (crc & 0xf); - } - hme_write32(hp, bregs + BMAC_HTABLE0, hash_table[0]); - hme_write32(hp, bregs + BMAC_HTABLE1, hash_table[1]); - hme_write32(hp, bregs + BMAC_HTABLE2, hash_table[2]); - hme_write32(hp, bregs + BMAC_HTABLE3, hash_table[3]); - } - - spin_unlock_irq(&hp->happy_lock); -} - -/* Ethtool support... */ -static int hme_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) -{ - struct happy_meal *hp = netdev_priv(dev); - u32 speed; - - cmd->supported = - (SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | - SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | - SUPPORTED_Autoneg | SUPPORTED_TP | SUPPORTED_MII); - - /* XXX hardcoded stuff for now */ - cmd->port = PORT_TP; /* XXX no MII support */ - cmd->transceiver = XCVR_INTERNAL; /* XXX no external xcvr support */ - cmd->phy_address = 0; /* XXX fixed PHYAD */ - - /* Record PHY settings. */ - spin_lock_irq(&hp->happy_lock); - hp->sw_bmcr = happy_meal_tcvr_read(hp, hp->tcvregs, MII_BMCR); - hp->sw_lpa = happy_meal_tcvr_read(hp, hp->tcvregs, MII_LPA); - spin_unlock_irq(&hp->happy_lock); - - if (hp->sw_bmcr & BMCR_ANENABLE) { - cmd->autoneg = AUTONEG_ENABLE; - speed = ((hp->sw_lpa & (LPA_100HALF | LPA_100FULL)) ? - SPEED_100 : SPEED_10); - if (speed == SPEED_100) - cmd->duplex = - (hp->sw_lpa & (LPA_100FULL)) ? - DUPLEX_FULL : DUPLEX_HALF; - else - cmd->duplex = - (hp->sw_lpa & (LPA_10FULL)) ? - DUPLEX_FULL : DUPLEX_HALF; - } else { - cmd->autoneg = AUTONEG_DISABLE; - speed = (hp->sw_bmcr & BMCR_SPEED100) ? SPEED_100 : SPEED_10; - cmd->duplex = - (hp->sw_bmcr & BMCR_FULLDPLX) ? - DUPLEX_FULL : DUPLEX_HALF; - } - ethtool_cmd_speed_set(cmd, speed); - return 0; -} - -static int hme_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) -{ - struct happy_meal *hp = netdev_priv(dev); - - /* Verify the settings we care about. */ - if (cmd->autoneg != AUTONEG_ENABLE && - cmd->autoneg != AUTONEG_DISABLE) - return -EINVAL; - if (cmd->autoneg == AUTONEG_DISABLE && - ((ethtool_cmd_speed(cmd) != SPEED_100 && - ethtool_cmd_speed(cmd) != SPEED_10) || - (cmd->duplex != DUPLEX_HALF && - cmd->duplex != DUPLEX_FULL))) - return -EINVAL; - - /* Ok, do it to it. */ - spin_lock_irq(&hp->happy_lock); - del_timer(&hp->happy_timer); - happy_meal_begin_auto_negotiation(hp, hp->tcvregs, cmd); - spin_unlock_irq(&hp->happy_lock); - - return 0; -} - -static void hme_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) -{ - struct happy_meal *hp = netdev_priv(dev); - - strcpy(info->driver, "sunhme"); - strcpy(info->version, "2.02"); - if (hp->happy_flags & HFLAG_PCI) { - struct pci_dev *pdev = hp->happy_dev; - strcpy(info->bus_info, pci_name(pdev)); - } -#ifdef CONFIG_SBUS - else { - const struct linux_prom_registers *regs; - struct platform_device *op = hp->happy_dev; - regs = of_get_property(op->dev.of_node, "regs", NULL); - if (regs) - sprintf(info->bus_info, "SBUS:%d", - regs->which_io); - } -#endif -} - -static u32 hme_get_link(struct net_device *dev) -{ - struct happy_meal *hp = netdev_priv(dev); - - spin_lock_irq(&hp->happy_lock); - hp->sw_bmcr = happy_meal_tcvr_read(hp, hp->tcvregs, MII_BMCR); - spin_unlock_irq(&hp->happy_lock); - - return hp->sw_bmsr & BMSR_LSTATUS; -} - -static const struct ethtool_ops hme_ethtool_ops = { - .get_settings = hme_get_settings, - .set_settings = hme_set_settings, - .get_drvinfo = hme_get_drvinfo, - .get_link = hme_get_link, -}; - -static int hme_version_printed; - -#ifdef CONFIG_SBUS -/* Given a happy meal sbus device, find it's quattro parent. - * If none exist, allocate and return a new one. - * - * Return NULL on failure. - */ -static struct quattro * __devinit quattro_sbus_find(struct platform_device *child) -{ - struct device *parent = child->dev.parent; - struct platform_device *op; - struct quattro *qp; - - op = to_platform_device(parent); - qp = dev_get_drvdata(&op->dev); - if (qp) - return qp; - - qp = kmalloc(sizeof(struct quattro), GFP_KERNEL); - if (qp != NULL) { - int i; - - for (i = 0; i < 4; i++) - qp->happy_meals[i] = NULL; - - qp->quattro_dev = child; - qp->next = qfe_sbus_list; - qfe_sbus_list = qp; - - dev_set_drvdata(&op->dev, qp); - } - return qp; -} - -/* After all quattro cards have been probed, we call these functions - * to register the IRQ handlers for the cards that have been - * successfully probed and skip the cards that failed to initialize - */ -static int __init quattro_sbus_register_irqs(void) -{ - struct quattro *qp; - - for (qp = qfe_sbus_list; qp != NULL; qp = qp->next) { - struct platform_device *op = qp->quattro_dev; - int err, qfe_slot, skip = 0; - - for (qfe_slot = 0; qfe_slot < 4; qfe_slot++) { - if (!qp->happy_meals[qfe_slot]) - skip = 1; - } - if (skip) - continue; - - err = request_irq(op->archdata.irqs[0], - quattro_sbus_interrupt, - IRQF_SHARED, "Quattro", - qp); - if (err != 0) { - printk(KERN_ERR "Quattro HME: IRQ registration " - "error %d.\n", err); - return err; - } - } - - return 0; -} - -static void quattro_sbus_free_irqs(void) -{ - struct quattro *qp; - - for (qp = qfe_sbus_list; qp != NULL; qp = qp->next) { - struct platform_device *op = qp->quattro_dev; - int qfe_slot, skip = 0; - - for (qfe_slot = 0; qfe_slot < 4; qfe_slot++) { - if (!qp->happy_meals[qfe_slot]) - skip = 1; - } - if (skip) - continue; - - free_irq(op->archdata.irqs[0], qp); - } -} -#endif /* CONFIG_SBUS */ - -#ifdef CONFIG_PCI -static struct quattro * __devinit quattro_pci_find(struct pci_dev *pdev) -{ - struct pci_dev *bdev = pdev->bus->self; - struct quattro *qp; - - if (!bdev) return NULL; - for (qp = qfe_pci_list; qp != NULL; qp = qp->next) { - struct pci_dev *qpdev = qp->quattro_dev; - - if (qpdev == bdev) - return qp; - } - qp = kmalloc(sizeof(struct quattro), GFP_KERNEL); - if (qp != NULL) { - int i; - - for (i = 0; i < 4; i++) - qp->happy_meals[i] = NULL; - - qp->quattro_dev = bdev; - qp->next = qfe_pci_list; - qfe_pci_list = qp; - - /* No range tricks necessary on PCI. */ - qp->nranges = 0; - } - return qp; -} -#endif /* CONFIG_PCI */ - -static const struct net_device_ops hme_netdev_ops = { - .ndo_open = happy_meal_open, - .ndo_stop = happy_meal_close, - .ndo_start_xmit = happy_meal_start_xmit, - .ndo_tx_timeout = happy_meal_tx_timeout, - .ndo_get_stats = happy_meal_get_stats, - .ndo_set_multicast_list = happy_meal_set_multicast, - .ndo_change_mtu = eth_change_mtu, - .ndo_set_mac_address = eth_mac_addr, - .ndo_validate_addr = eth_validate_addr, -}; - -#ifdef CONFIG_SBUS -static int __devinit happy_meal_sbus_probe_one(struct platform_device *op, int is_qfe) -{ - struct device_node *dp = op->dev.of_node, *sbus_dp; - struct quattro *qp = NULL; - struct happy_meal *hp; - struct net_device *dev; - int i, qfe_slot = -1; - int err = -ENODEV; - - sbus_dp = op->dev.parent->of_node; - - /* We can match PCI devices too, do not accept those here. */ - if (strcmp(sbus_dp->name, "sbus")) - return err; - - if (is_qfe) { - qp = quattro_sbus_find(op); - if (qp == NULL) - goto err_out; - for (qfe_slot = 0; qfe_slot < 4; qfe_slot++) - if (qp->happy_meals[qfe_slot] == NULL) - break; - if (qfe_slot == 4) - goto err_out; - } - - err = -ENOMEM; - dev = alloc_etherdev(sizeof(struct happy_meal)); - if (!dev) - goto err_out; - SET_NETDEV_DEV(dev, &op->dev); - - if (hme_version_printed++ == 0) - printk(KERN_INFO "%s", version); - - /* If user did not specify a MAC address specifically, use - * the Quattro local-mac-address property... - */ - for (i = 0; i < 6; i++) { - if (macaddr[i] != 0) - break; - } - if (i < 6) { /* a mac address was given */ - for (i = 0; i < 6; i++) - dev->dev_addr[i] = macaddr[i]; - macaddr[5]++; - } else { - const unsigned char *addr; - int len; - - addr = of_get_property(dp, "local-mac-address", &len); - - if (qfe_slot != -1 && addr && len == 6) - memcpy(dev->dev_addr, addr, 6); - else - memcpy(dev->dev_addr, idprom->id_ethaddr, 6); - } - - hp = netdev_priv(dev); - - hp->happy_dev = op; - hp->dma_dev = &op->dev; - - spin_lock_init(&hp->happy_lock); - - err = -ENODEV; - if (qp != NULL) { - hp->qfe_parent = qp; - hp->qfe_ent = qfe_slot; - qp->happy_meals[qfe_slot] = dev; - } - - hp->gregs = of_ioremap(&op->resource[0], 0, - GREG_REG_SIZE, "HME Global Regs"); - if (!hp->gregs) { - printk(KERN_ERR "happymeal: Cannot map global registers.\n"); - goto err_out_free_netdev; - } - - hp->etxregs = of_ioremap(&op->resource[1], 0, - ETX_REG_SIZE, "HME TX Regs"); - if (!hp->etxregs) { - printk(KERN_ERR "happymeal: Cannot map MAC TX registers.\n"); - goto err_out_iounmap; - } - - hp->erxregs = of_ioremap(&op->resource[2], 0, - ERX_REG_SIZE, "HME RX Regs"); - if (!hp->erxregs) { - printk(KERN_ERR "happymeal: Cannot map MAC RX registers.\n"); - goto err_out_iounmap; - } - - hp->bigmacregs = of_ioremap(&op->resource[3], 0, - BMAC_REG_SIZE, "HME BIGMAC Regs"); - if (!hp->bigmacregs) { - printk(KERN_ERR "happymeal: Cannot map BIGMAC registers.\n"); - goto err_out_iounmap; - } - - hp->tcvregs = of_ioremap(&op->resource[4], 0, - TCVR_REG_SIZE, "HME Tranceiver Regs"); - if (!hp->tcvregs) { - printk(KERN_ERR "happymeal: Cannot map TCVR registers.\n"); - goto err_out_iounmap; - } - - hp->hm_revision = of_getintprop_default(dp, "hm-rev", 0xff); - if (hp->hm_revision == 0xff) - hp->hm_revision = 0xa0; - - /* Now enable the feature flags we can. */ - if (hp->hm_revision == 0x20 || hp->hm_revision == 0x21) - hp->happy_flags = HFLAG_20_21; - else if (hp->hm_revision != 0xa0) - hp->happy_flags = HFLAG_NOT_A0; - - if (qp != NULL) - hp->happy_flags |= HFLAG_QUATTRO; - - /* Get the supported DVMA burst sizes from our Happy SBUS. */ - hp->happy_bursts = of_getintprop_default(sbus_dp, - "burst-sizes", 0x00); - - hp->happy_block = dma_alloc_coherent(hp->dma_dev, - PAGE_SIZE, - &hp->hblock_dvma, - GFP_ATOMIC); - err = -ENOMEM; - if (!hp->happy_block) { - printk(KERN_ERR "happymeal: Cannot allocate descriptors.\n"); - goto err_out_iounmap; - } - - /* Force check of the link first time we are brought up. */ - hp->linkcheck = 0; - - /* Force timer state to 'asleep' with count of zero. */ - hp->timer_state = asleep; - hp->timer_ticks = 0; - - init_timer(&hp->happy_timer); - - hp->dev = dev; - dev->netdev_ops = &hme_netdev_ops; - dev->watchdog_timeo = 5*HZ; - dev->ethtool_ops = &hme_ethtool_ops; - - /* Happy Meal can do it all... */ - dev->hw_features = NETIF_F_SG | NETIF_F_HW_CSUM; - dev->features |= dev->hw_features | NETIF_F_RXCSUM; - - dev->irq = op->archdata.irqs[0]; - -#if defined(CONFIG_SBUS) && defined(CONFIG_PCI) - /* Hook up SBUS register/descriptor accessors. */ - hp->read_desc32 = sbus_hme_read_desc32; - hp->write_txd = sbus_hme_write_txd; - hp->write_rxd = sbus_hme_write_rxd; - hp->read32 = sbus_hme_read32; - hp->write32 = sbus_hme_write32; -#endif - - /* Grrr, Happy Meal comes up by default not advertising - * full duplex 100baseT capabilities, fix this. - */ - spin_lock_irq(&hp->happy_lock); - happy_meal_set_initial_advertisement(hp); - spin_unlock_irq(&hp->happy_lock); - - err = register_netdev(hp->dev); - if (err) { - printk(KERN_ERR "happymeal: Cannot register net device, " - "aborting.\n"); - goto err_out_free_coherent; - } - - dev_set_drvdata(&op->dev, hp); - - if (qfe_slot != -1) - printk(KERN_INFO "%s: Quattro HME slot %d (SBUS) 10/100baseT Ethernet ", - dev->name, qfe_slot); - else - printk(KERN_INFO "%s: HAPPY MEAL (SBUS) 10/100baseT Ethernet ", - dev->name); - - printk("%pM\n", dev->dev_addr); - - return 0; - -err_out_free_coherent: - dma_free_coherent(hp->dma_dev, - PAGE_SIZE, - hp->happy_block, - hp->hblock_dvma); - -err_out_iounmap: - if (hp->gregs) - of_iounmap(&op->resource[0], hp->gregs, GREG_REG_SIZE); - if (hp->etxregs) - of_iounmap(&op->resource[1], hp->etxregs, ETX_REG_SIZE); - if (hp->erxregs) - of_iounmap(&op->resource[2], hp->erxregs, ERX_REG_SIZE); - if (hp->bigmacregs) - of_iounmap(&op->resource[3], hp->bigmacregs, BMAC_REG_SIZE); - if (hp->tcvregs) - of_iounmap(&op->resource[4], hp->tcvregs, TCVR_REG_SIZE); - - if (qp) - qp->happy_meals[qfe_slot] = NULL; - -err_out_free_netdev: - free_netdev(dev); - -err_out: - return err; -} -#endif - -#ifdef CONFIG_PCI -#ifndef CONFIG_SPARC -static int is_quattro_p(struct pci_dev *pdev) -{ - struct pci_dev *busdev = pdev->bus->self; - struct list_head *tmp; - int n_hmes; - - if (busdev == NULL || - busdev->vendor != PCI_VENDOR_ID_DEC || - busdev->device != PCI_DEVICE_ID_DEC_21153) - return 0; - - n_hmes = 0; - tmp = pdev->bus->devices.next; - while (tmp != &pdev->bus->devices) { - struct pci_dev *this_pdev = pci_dev_b(tmp); - - if (this_pdev->vendor == PCI_VENDOR_ID_SUN && - this_pdev->device == PCI_DEVICE_ID_SUN_HAPPYMEAL) - n_hmes++; - - tmp = tmp->next; - } - - if (n_hmes != 4) - return 0; - - return 1; -} - -/* Fetch MAC address from vital product data of PCI ROM. */ -static int find_eth_addr_in_vpd(void __iomem *rom_base, int len, int index, unsigned char *dev_addr) -{ - int this_offset; - - for (this_offset = 0x20; this_offset < len; this_offset++) { - void __iomem *p = rom_base + this_offset; - - if (readb(p + 0) != 0x90 || - readb(p + 1) != 0x00 || - readb(p + 2) != 0x09 || - readb(p + 3) != 0x4e || - readb(p + 4) != 0x41 || - readb(p + 5) != 0x06) - continue; - - this_offset += 6; - p += 6; - - if (index == 0) { - int i; - - for (i = 0; i < 6; i++) - dev_addr[i] = readb(p + i); - return 1; - } - index--; - } - return 0; -} - -static void get_hme_mac_nonsparc(struct pci_dev *pdev, unsigned char *dev_addr) -{ - size_t size; - void __iomem *p = pci_map_rom(pdev, &size); - - if (p) { - int index = 0; - int found; - - if (is_quattro_p(pdev)) - index = PCI_SLOT(pdev->devfn); - - found = readb(p) == 0x55 && - readb(p + 1) == 0xaa && - find_eth_addr_in_vpd(p, (64 * 1024), index, dev_addr); - pci_unmap_rom(pdev, p); - if (found) - return; - } - - /* Sun MAC prefix then 3 random bytes. */ - dev_addr[0] = 0x08; - dev_addr[1] = 0x00; - dev_addr[2] = 0x20; - get_random_bytes(&dev_addr[3], 3); -} -#endif /* !(CONFIG_SPARC) */ - -static int __devinit happy_meal_pci_probe(struct pci_dev *pdev, - const struct pci_device_id *ent) -{ - struct quattro *qp = NULL; -#ifdef CONFIG_SPARC - struct device_node *dp; -#endif - struct happy_meal *hp; - struct net_device *dev; - void __iomem *hpreg_base; - unsigned long hpreg_res; - int i, qfe_slot = -1; - char prom_name[64]; - int err; - - /* Now make sure pci_dev cookie is there. */ -#ifdef CONFIG_SPARC - dp = pci_device_to_OF_node(pdev); - strcpy(prom_name, dp->name); -#else - if (is_quattro_p(pdev)) - strcpy(prom_name, "SUNW,qfe"); - else - strcpy(prom_name, "SUNW,hme"); -#endif - - err = -ENODEV; - - if (pci_enable_device(pdev)) - goto err_out; - pci_set_master(pdev); - - if (!strcmp(prom_name, "SUNW,qfe") || !strcmp(prom_name, "qfe")) { - qp = quattro_pci_find(pdev); - if (qp == NULL) - goto err_out; - for (qfe_slot = 0; qfe_slot < 4; qfe_slot++) - if (qp->happy_meals[qfe_slot] == NULL) - break; - if (qfe_slot == 4) - goto err_out; - } - - dev = alloc_etherdev(sizeof(struct happy_meal)); - err = -ENOMEM; - if (!dev) - goto err_out; - SET_NETDEV_DEV(dev, &pdev->dev); - - if (hme_version_printed++ == 0) - printk(KERN_INFO "%s", version); - - dev->base_addr = (long) pdev; - - hp = netdev_priv(dev); - - hp->happy_dev = pdev; - hp->dma_dev = &pdev->dev; - - spin_lock_init(&hp->happy_lock); - - if (qp != NULL) { - hp->qfe_parent = qp; - hp->qfe_ent = qfe_slot; - qp->happy_meals[qfe_slot] = dev; - } - - hpreg_res = pci_resource_start(pdev, 0); - err = -ENODEV; - if ((pci_resource_flags(pdev, 0) & IORESOURCE_IO) != 0) { - printk(KERN_ERR "happymeal(PCI): Cannot find proper PCI device base address.\n"); - goto err_out_clear_quattro; - } - if (pci_request_regions(pdev, DRV_NAME)) { - printk(KERN_ERR "happymeal(PCI): Cannot obtain PCI resources, " - "aborting.\n"); - goto err_out_clear_quattro; - } - - if ((hpreg_base = ioremap(hpreg_res, 0x8000)) == NULL) { - printk(KERN_ERR "happymeal(PCI): Unable to remap card memory.\n"); - goto err_out_free_res; - } - - for (i = 0; i < 6; i++) { - if (macaddr[i] != 0) - break; - } - if (i < 6) { /* a mac address was given */ - for (i = 0; i < 6; i++) - dev->dev_addr[i] = macaddr[i]; - macaddr[5]++; - } else { -#ifdef CONFIG_SPARC - const unsigned char *addr; - int len; - - if (qfe_slot != -1 && - (addr = of_get_property(dp, "local-mac-address", &len)) - != NULL && - len == 6) { - memcpy(dev->dev_addr, addr, 6); - } else { - memcpy(dev->dev_addr, idprom->id_ethaddr, 6); - } -#else - get_hme_mac_nonsparc(pdev, &dev->dev_addr[0]); -#endif - } - - /* Layout registers. */ - hp->gregs = (hpreg_base + 0x0000UL); - hp->etxregs = (hpreg_base + 0x2000UL); - hp->erxregs = (hpreg_base + 0x4000UL); - hp->bigmacregs = (hpreg_base + 0x6000UL); - hp->tcvregs = (hpreg_base + 0x7000UL); - -#ifdef CONFIG_SPARC - hp->hm_revision = of_getintprop_default(dp, "hm-rev", 0xff); - if (hp->hm_revision == 0xff) - hp->hm_revision = 0xc0 | (pdev->revision & 0x0f); -#else - /* works with this on non-sparc hosts */ - hp->hm_revision = 0x20; -#endif - - /* Now enable the feature flags we can. */ - if (hp->hm_revision == 0x20 || hp->hm_revision == 0x21) - hp->happy_flags = HFLAG_20_21; - else if (hp->hm_revision != 0xa0 && hp->hm_revision != 0xc0) - hp->happy_flags = HFLAG_NOT_A0; - - if (qp != NULL) - hp->happy_flags |= HFLAG_QUATTRO; - - /* And of course, indicate this is PCI. */ - hp->happy_flags |= HFLAG_PCI; - -#ifdef CONFIG_SPARC - /* Assume PCI happy meals can handle all burst sizes. */ - hp->happy_bursts = DMA_BURSTBITS; -#endif - - hp->happy_block = (struct hmeal_init_block *) - dma_alloc_coherent(&pdev->dev, PAGE_SIZE, &hp->hblock_dvma, GFP_KERNEL); - - err = -ENODEV; - if (!hp->happy_block) { - printk(KERN_ERR "happymeal(PCI): Cannot get hme init block.\n"); - goto err_out_iounmap; - } - - hp->linkcheck = 0; - hp->timer_state = asleep; - hp->timer_ticks = 0; - - init_timer(&hp->happy_timer); - - hp->dev = dev; - dev->netdev_ops = &hme_netdev_ops; - dev->watchdog_timeo = 5*HZ; - dev->ethtool_ops = &hme_ethtool_ops; - dev->irq = pdev->irq; - dev->dma = 0; - - /* Happy Meal can do it all... */ - dev->hw_features = NETIF_F_SG | NETIF_F_HW_CSUM; - dev->features |= dev->hw_features | NETIF_F_RXCSUM; - -#if defined(CONFIG_SBUS) && defined(CONFIG_PCI) - /* Hook up PCI register/descriptor accessors. */ - hp->read_desc32 = pci_hme_read_desc32; - hp->write_txd = pci_hme_write_txd; - hp->write_rxd = pci_hme_write_rxd; - hp->read32 = pci_hme_read32; - hp->write32 = pci_hme_write32; -#endif - - /* Grrr, Happy Meal comes up by default not advertising - * full duplex 100baseT capabilities, fix this. - */ - spin_lock_irq(&hp->happy_lock); - happy_meal_set_initial_advertisement(hp); - spin_unlock_irq(&hp->happy_lock); - - err = register_netdev(hp->dev); - if (err) { - printk(KERN_ERR "happymeal(PCI): Cannot register net device, " - "aborting.\n"); - goto err_out_iounmap; - } - - dev_set_drvdata(&pdev->dev, hp); - - if (!qfe_slot) { - struct pci_dev *qpdev = qp->quattro_dev; - - prom_name[0] = 0; - if (!strncmp(dev->name, "eth", 3)) { - int i = simple_strtoul(dev->name + 3, NULL, 10); - sprintf(prom_name, "-%d", i + 3); - } - printk(KERN_INFO "%s%s: Quattro HME (PCI/CheerIO) 10/100baseT Ethernet ", dev->name, prom_name); - if (qpdev->vendor == PCI_VENDOR_ID_DEC && - qpdev->device == PCI_DEVICE_ID_DEC_21153) - printk("DEC 21153 PCI Bridge\n"); - else - printk("unknown bridge %04x.%04x\n", - qpdev->vendor, qpdev->device); - } - - if (qfe_slot != -1) - printk(KERN_INFO "%s: Quattro HME slot %d (PCI/CheerIO) 10/100baseT Ethernet ", - dev->name, qfe_slot); - else - printk(KERN_INFO "%s: HAPPY MEAL (PCI/CheerIO) 10/100BaseT Ethernet ", - dev->name); - - printk("%pM\n", dev->dev_addr); - - return 0; - -err_out_iounmap: - iounmap(hp->gregs); - -err_out_free_res: - pci_release_regions(pdev); - -err_out_clear_quattro: - if (qp != NULL) - qp->happy_meals[qfe_slot] = NULL; - - free_netdev(dev); - -err_out: - return err; -} - -static void __devexit happy_meal_pci_remove(struct pci_dev *pdev) -{ - struct happy_meal *hp = dev_get_drvdata(&pdev->dev); - struct net_device *net_dev = hp->dev; - - unregister_netdev(net_dev); - - dma_free_coherent(hp->dma_dev, PAGE_SIZE, - hp->happy_block, hp->hblock_dvma); - iounmap(hp->gregs); - pci_release_regions(hp->happy_dev); - - free_netdev(net_dev); - - dev_set_drvdata(&pdev->dev, NULL); -} - -static DEFINE_PCI_DEVICE_TABLE(happymeal_pci_ids) = { - { PCI_DEVICE(PCI_VENDOR_ID_SUN, PCI_DEVICE_ID_SUN_HAPPYMEAL) }, - { } /* Terminating entry */ -}; - -MODULE_DEVICE_TABLE(pci, happymeal_pci_ids); - -static struct pci_driver hme_pci_driver = { - .name = "hme", - .id_table = happymeal_pci_ids, - .probe = happy_meal_pci_probe, - .remove = __devexit_p(happy_meal_pci_remove), -}; - -static int __init happy_meal_pci_init(void) -{ - return pci_register_driver(&hme_pci_driver); -} - -static void happy_meal_pci_exit(void) -{ - pci_unregister_driver(&hme_pci_driver); - - while (qfe_pci_list) { - struct quattro *qfe = qfe_pci_list; - struct quattro *next = qfe->next; - - kfree(qfe); - - qfe_pci_list = next; - } -} - -#endif - -#ifdef CONFIG_SBUS -static const struct of_device_id hme_sbus_match[]; -static int __devinit hme_sbus_probe(struct platform_device *op) -{ - const struct of_device_id *match; - struct device_node *dp = op->dev.of_node; - const char *model = of_get_property(dp, "model", NULL); - int is_qfe; - - match = of_match_device(hme_sbus_match, &op->dev); - if (!match) - return -EINVAL; - is_qfe = (match->data != NULL); - - if (!is_qfe && model && !strcmp(model, "SUNW,sbus-qfe")) - is_qfe = 1; - - return happy_meal_sbus_probe_one(op, is_qfe); -} - -static int __devexit hme_sbus_remove(struct platform_device *op) -{ - struct happy_meal *hp = dev_get_drvdata(&op->dev); - struct net_device *net_dev = hp->dev; - - unregister_netdev(net_dev); - - /* XXX qfe parent interrupt... */ - - of_iounmap(&op->resource[0], hp->gregs, GREG_REG_SIZE); - of_iounmap(&op->resource[1], hp->etxregs, ETX_REG_SIZE); - of_iounmap(&op->resource[2], hp->erxregs, ERX_REG_SIZE); - of_iounmap(&op->resource[3], hp->bigmacregs, BMAC_REG_SIZE); - of_iounmap(&op->resource[4], hp->tcvregs, TCVR_REG_SIZE); - dma_free_coherent(hp->dma_dev, - PAGE_SIZE, - hp->happy_block, - hp->hblock_dvma); - - free_netdev(net_dev); - - dev_set_drvdata(&op->dev, NULL); - - return 0; -} - -static const struct of_device_id hme_sbus_match[] = { - { - .name = "SUNW,hme", - }, - { - .name = "SUNW,qfe", - .data = (void *) 1, - }, - { - .name = "qfe", - .data = (void *) 1, - }, - {}, -}; - -MODULE_DEVICE_TABLE(of, hme_sbus_match); - -static struct platform_driver hme_sbus_driver = { - .driver = { - .name = "hme", - .owner = THIS_MODULE, - .of_match_table = hme_sbus_match, - }, - .probe = hme_sbus_probe, - .remove = __devexit_p(hme_sbus_remove), -}; - -static int __init happy_meal_sbus_init(void) -{ - int err; - - err = platform_driver_register(&hme_sbus_driver); - if (!err) - err = quattro_sbus_register_irqs(); - - return err; -} - -static void happy_meal_sbus_exit(void) -{ - platform_driver_unregister(&hme_sbus_driver); - quattro_sbus_free_irqs(); - - while (qfe_sbus_list) { - struct quattro *qfe = qfe_sbus_list; - struct quattro *next = qfe->next; - - kfree(qfe); - - qfe_sbus_list = next; - } -} -#endif - -static int __init happy_meal_probe(void) -{ - int err = 0; - -#ifdef CONFIG_SBUS - err = happy_meal_sbus_init(); -#endif -#ifdef CONFIG_PCI - if (!err) { - err = happy_meal_pci_init(); -#ifdef CONFIG_SBUS - if (err) - happy_meal_sbus_exit(); -#endif - } -#endif - - return err; -} - - -static void __exit happy_meal_exit(void) -{ -#ifdef CONFIG_SBUS - happy_meal_sbus_exit(); -#endif -#ifdef CONFIG_PCI - happy_meal_pci_exit(); -#endif -} - -module_init(happy_meal_probe); -module_exit(happy_meal_exit); |