@@ -1,105 +1,27 @@
/* cs89x0.c: A Crystal Semiconductor (Now Cirrus Logic) CS89[02]0
- * driver for linux.
+ * driver for linux.
+ * Written 1996 by Russell Nelson, with reference to skeleton.c
+ * written 1993-1994 by Donald Becker.
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ * The author may be reached at nelson@crynwr.com, Crynwr
+ * Software, 521 Pleasant Valley Rd., Potsdam, NY 13676
+ *
+ * Other contributors:
+ * Mike Cruse : mcruse@cti-ltd.com
+ * Russ Nelson
+ * Melody Lee : ethernet@crystal.cirrus.com
+ * Alan Cox
+ * Andrew Morton
+ * Oskar Schirmer : oskar@scara.com
+ * Deepak Saxena : dsaxena@plexity.net
+ * Dmitry Pervushin : dpervushin@ru.mvista.com
+ * Deepak Saxena : dsaxena@plexity.net
+ * Domenico Andreoli : cavokz@gmail.com
*/
-/*
- Written 1996 by Russell Nelson, with reference to skeleton.c
- written 1993-1994 by Donald Becker.
-
- This software may be used and distributed according to the terms
- of the GNU General Public License, incorporated herein by reference.
-
- The author may be reached at nelson@crynwr.com, Crynwr
- Software, 521 Pleasant Valley Rd., Potsdam, NY 13676
-
- Changelog:
-
- Mike Cruse : mcruse@cti-ltd.com
- : Changes for Linux 2.0 compatibility.
- : Added dev_id parameter in net_interrupt(),
- : request_irq() and free_irq(). Just NULL for now.
-
- Mike Cruse : Added MOD_INC_USE_COUNT and MOD_DEC_USE_COUNT macros
- : in net_open() and net_close() so kerneld would know
- : that the module is in use and wouldn't eject the
- : driver prematurely.
-
- Mike Cruse : Rewrote init_module() and cleanup_module using 8390.c
- : as an example. Disabled autoprobing in init_module(),
- : not a good thing to do to other devices while Linux
- : is running from all accounts.
-
- Russ Nelson : Jul 13 1998. Added RxOnly DMA support.
-
- Melody Lee : Aug 10 1999. Changes for Linux 2.2.5 compatibility.
- : email: ethernet@crystal.cirrus.com
-
- Alan Cox : Removed 1.2 support, added 2.1 extra counters.
-
- Andrew Morton : Kernel 2.3.48
- : Handle kmalloc() failures
- : Other resource allocation fixes
- : Add SMP locks
- : Integrate Russ Nelson's ALLOW_DMA functionality back in.
- : If ALLOW_DMA is true, make DMA runtime selectable
- : Folded in changes from Cirrus (Melody Lee
- : <klee@crystal.cirrus.com>)
- : Don't call netif_wake_queue() in net_send_packet()
- : Fixed an out-of-mem bug in dma_rx()
- : Updated Documentation/networking/cs89x0.txt
-
- Andrew Morton : Kernel 2.3.99-pre1
- : Use skb_reserve to longword align IP header (two places)
- : Remove a delay loop from dma_rx()
- : Replace '100' with HZ
- : Clean up a couple of skb API abuses
- : Added 'cs89x0_dma=N' kernel boot option
- : Correctly initialise lp->lock in non-module compile
-
- Andrew Morton : Kernel 2.3.99-pre4-1
- : MOD_INC/DEC race fix (see
- : http://www.uwsg.indiana.edu/hypermail/linux/kernel/0003.3/1532.html)
-
- Andrew Morton : Kernel 2.4.0-test7-pre2
- : Enhanced EEPROM support to cover more devices,
- : abstracted IRQ mapping to support CONFIG_ARCH_CLPS7500 arch
- : (Jason Gunthorpe <jgg@ualberta.ca>)
-
- Andrew Morton : Kernel 2.4.0-test11-pre4
- : Use dev->name in request_*() (Andrey Panin)
- : Fix an error-path memleak in init_module()
- : Preserve return value from request_irq()
- : Fix type of `media' module parm (Keith Owens)
- : Use SET_MODULE_OWNER()
- : Tidied up strange request_irq() abuse in net_open().
-
- Andrew Morton : Kernel 2.4.3-pre1
- : Request correct number of pages for DMA (Hugh Dickens)
- : Select PP_ChipID _after_ unregister_netdev in cleanup_module()
- : because unregister_netdev() calls get_stats.
- : Make `version[]' __initdata
- : Uninlined the read/write reg/word functions.
-
- Oskar Schirmer : oskar@scara.com
- : HiCO.SH4 (superh) support added (irq#1, cs89x0_media=)
-
- Deepak Saxena : dsaxena@plexity.net
- : Intel IXDP2x01 (XScale ixp2x00 NPU) platform support
-
- Dmitry Pervushin : dpervushin@ru.mvista.com
- : PNX010X platform support
-
- Deepak Saxena : dsaxena@plexity.net
- : Intel IXDP2351 platform support
-
- Dmitry Pervushin : dpervushin@ru.mvista.com
- : PNX010X platform support
-
- Domenico Andreoli : cavokz@gmail.com
- : QQ2440 platform support
-
-*/
-
/*
* Set this to zero to disable DMA code
@@ -119,14 +41,10 @@
*/
#define DEBUGGING 1
-/*
- Sources:
-
- Crynwr packet driver epktisa.
-
- Crystal Semiconductor data sheets.
-
-*/
+/* Sources:
+ * Crynwr packet driver epktisa.
+ * Crystal Semiconductor data sheets.
+ */
#include <linux/module.h>
#include <linux/printk.h>
@@ -158,21 +76,23 @@
#include "cs89x0.h"
static char version[] __initdata =
-"cs89x0.c: v2.4.3-pre1 Russell Nelson <nelson@crynwr.com>, Andrew Morton\n";
+ "cs89x0.c: v2.4.3-pre1 Russell Nelson <nelson@crynwr.com>, Andrew Morton\n";
#define DRV_NAME "cs89x0"
/* First, a few definitions that the brave might change.
- A zero-terminated list of I/O addresses to be probed. Some special flags..
- Addr & 1 = Read back the address port, look for signature and reset
- the page window before probing
- Addr & 3 = Reset the page window and probe
- The CLPS eval board has the Cirrus chip at 0x80090300, in ARM IO space,
- but it is possible that a Cirrus board could be plugged into the ISA
- slots. */
+ * A zero-terminated list of I/O addresses to be probed. Some special flags..
+ * Addr & 1 = Read back the address port, look for signature and reset
+ * the page window before probing
+ * Addr & 3 = Reset the page window and probe
+ * The CLPS eval board has the Cirrus chip at 0x80090300, in ARM IO space,
+ * but it is possible that a Cirrus board could be plugged into the ISA
+ * slots.
+ */
/* The cs8900 has 4 IRQ pins, software selectable. cs8900_irq_map maps
- them to system IRQ numbers. This mapping is card specific and is set to
- the configuration of the Cirrus Eval board for this chip. */
+ * them to system IRQ numbers. This mapping is card specific and is set to
+ * the configuration of the Cirrus Eval board for this chip.
+ */
#if defined(CONFIG_MACH_IXDP2351)
#define CS89x0_NONISA_IRQ
static unsigned int netcard_portlist[] __used __initdata = {IXDP2351_VIRT_CS8900_BASE, 0};
@@ -184,8 +104,8 @@ static unsigned int cs8900_irq_map[] = {IRQ_IXDP2X01_CS8900, 0, 0, 0};
#else
#ifndef CONFIG_CS89x0_PLATFORM
static unsigned int netcard_portlist[] __used __initdata =
- { 0x300, 0x320, 0x340, 0x360, 0x200, 0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x2e0, 0};
-static unsigned int cs8900_irq_map[] = {10,11,12,5};
+{ 0x300, 0x320, 0x340, 0x360, 0x200, 0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x2e0, 0};
+static unsigned int cs8900_irq_map[] = {10, 11, 12, 5};
#endif
#endif
@@ -268,7 +188,7 @@ static int g_cs89x0_dma;
static int __init dma_fn(char *str)
{
- g_cs89x0_dma = simple_strtol(str,NULL,0);
+ g_cs89x0_dma = simple_strtol(str, NULL, 0);
return 1;
}
@@ -362,10 +282,11 @@ static int __init
wait_eeprom_ready(struct net_device *dev)
{
int timeout = jiffies;
- /* check to see if the EEPROM is ready, a timeout is used -
- just in case EEPROM is ready when SI_BUSY in the
- PP_SelfST is clear */
- while(readreg(dev, PP_SelfST) & SI_BUSY)
+ /* check to see if the EEPROM is ready,
+ * a timeout is used just in case EEPROM is ready when
+ * SI_BUSY in the PP_SelfST is clear
+ */
+ while (readreg(dev, PP_SelfST) & SI_BUSY)
if (jiffies - timeout >= 40)
return -1;
return 0;
@@ -376,7 +297,7 @@ get_eeprom_data(struct net_device *dev, int off, int len, int *buffer)
{
int i;
- if (net_debug > 3) printk("EEPROM data from %x for %x:\n",off,len);
+ if (net_debug > 3) printk("EEPROM data from %x for %x:\n", off, len);
for (i = 0; i < len; i++) {
if (wait_eeprom_ready(dev) < 0) return -1;
/* Now send the EEPROM read command and EEPROM location to read */
@@ -386,7 +307,7 @@ get_eeprom_data(struct net_device *dev, int off, int len, int *buffer)
if (net_debug > 3) printk("%04x ", buffer[i]);
}
if (net_debug > 3) printk("\n");
- return 0;
+ return 0;
}
static int __init
@@ -420,10 +341,10 @@ static const struct net_device_ops net_ops = {
.ndo_open = net_open,
.ndo_stop = net_close,
.ndo_tx_timeout = net_timeout,
- .ndo_start_xmit = net_send_packet,
+ .ndo_start_xmit = net_send_packet,
.ndo_get_stats = net_get_stats,
.ndo_set_rx_mode = set_multicast_list,
- .ndo_set_mac_address = set_mac_address,
+ .ndo_set_mac_address = set_mac_address,
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = net_poll_controller,
#endif
@@ -431,12 +352,12 @@ static const struct net_device_ops net_ops = {
.ndo_validate_addr = eth_validate_addr,
};
-/* This is the real probe routine. Linux has a history of friendly device
- probes on the ISA bus. A good device probes avoids doing writes, and
- verifies that the correct device exists and functions.
- Return 0 on success.
+/* This is the real probe routine.
+ * Linux has a history of friendly device probes on the ISA bus.
+ * A good device probes avoids doing writes, and
+ * verifies that the correct device exists and functions.
+ * Return 0 on success.
*/
-
static int __init
cs89x0_probe1(struct net_device *dev, void __iomem *ioaddr, int modular)
{
@@ -462,7 +383,7 @@ cs89x0_probe1(struct net_device *dev, void __iomem *ioaddr, int modular)
#endif
lp->force = g_cs89x0_media__force;
#endif
- }
+ }
printk(KERN_DEBUG "PP_addr at %p[%x]: 0x%x\n",
ioaddr, ADD_PORT, ioread16(ioaddr + ADD_PORT));
@@ -471,9 +392,9 @@ cs89x0_probe1(struct net_device *dev, void __iomem *ioaddr, int modular)
tmp = ioread16(ioaddr + DATA_PORT);
if (tmp != CHIP_EISA_ID_SIG) {
printk(KERN_DEBUG "%s: incorrect signature at %p[%x]: 0x%x!="
- CHIP_EISA_ID_SIG_STR "\n",
- dev->name, ioaddr, DATA_PORT, tmp);
- retval = -ENODEV;
+ CHIP_EISA_ID_SIG_STR "\n",
+ dev->name, ioaddr, DATA_PORT, tmp);
+ retval = -ENODEV;
goto out1;
}
@@ -481,11 +402,11 @@ cs89x0_probe1(struct net_device *dev, void __iomem *ioaddr, int modular)
/* get the chip type */
rev_type = readreg(dev, PRODUCT_ID_ADD);
- lp->chip_type = rev_type &~ REVISON_BITS;
+ lp->chip_type = rev_type & ~REVISON_BITS;
lp->chip_revision = ((rev_type & REVISON_BITS) >> 8) + 'A';
/* Check the chip type and revision in order to set the correct send command
- CS8920 revision C and CS8900 revision F can use the faster send. */
+ CS8920 revision C and CS8900 revision F can use the faster send. */
lp->send_cmd = TX_AFTER_381;
if (lp->chip_type == CS8900 && lp->chip_revision >= 'F')
lp->send_cmd = TX_NOW;
@@ -497,45 +418,46 @@ cs89x0_probe1(struct net_device *dev, void __iomem *ioaddr, int modular)
printk(KERN_INFO "%s: cs89%c0%s rev %c found at %p ",
dev->name,
- lp->chip_type==CS8900?'0':'2',
- lp->chip_type==CS8920M?"M":"",
+ lp->chip_type == CS8900 ? '0' : '2',
+ lp->chip_type == CS8920M ? "M" : "",
lp->chip_revision,
lp->virt_addr);
reset_chip(dev);
- /* Here we read the current configuration of the chip. If there
- is no Extended EEPROM then the idea is to not disturb the chip
- configuration, it should have been correctly setup by automatic
- EEPROM read on reset. So, if the chip says it read the EEPROM
- the driver will always do *something* instead of complain that
- adapter_cnf is 0. */
-
-
- if ((readreg(dev, PP_SelfST) & (EEPROM_OK | EEPROM_PRESENT)) ==
- (EEPROM_OK|EEPROM_PRESENT)) {
- /* Load the MAC. */
- for (i=0; i < ETH_ALEN/2; i++) {
- unsigned int Addr;
- Addr = readreg(dev, PP_IA+i*2);
- dev->dev_addr[i*2] = Addr & 0xFF;
- dev->dev_addr[i*2+1] = Addr >> 8;
+ /* Here we read the current configuration of the chip.
+ * If there is no Extended EEPROM then the idea is to not disturb
+ * the chip configuration, it should have been correctly setup by
+ * automatic EEPROM read on reset. So, if the chip says it read
+ * the EEPROM the driver will always do *something* instead of
+ * complain that adapter_cnf is 0.
+ */
+
+ if ((readreg(dev, PP_SelfST) & (EEPROM_OK | EEPROM_PRESENT)) ==
+ (EEPROM_OK|EEPROM_PRESENT)) {
+ /* Load the MAC. */
+ for (i = 0; i < ETH_ALEN / 2; i++) {
+ unsigned int Addr;
+ Addr = readreg(dev, PP_IA + i * 2);
+ dev->dev_addr[i * 2] = Addr & 0xFF;
+ dev->dev_addr[i * 2 + 1] = Addr >> 8;
}
- /* Load the Adapter Configuration.
- Note: Barring any more specific information from some
- other source (ie EEPROM+Schematics), we would not know
- how to operate a 10Base2 interface on the AUI port.
- However, since we do read the status of HCB1 and use
- settings that always result in calls to control_dc_dc(dev,0)
- a BNC interface should work if the enable pin
- (dc/dc converter) is on HCB1. It will be called AUI
- however. */
+ /* Load the Adapter Configuration.
+ * Note: Barring any more specific information from some
+ * other source (ie EEPROM+Schematics), we would not know
+ * how to operate a 10Base2 interface on the AUI port.
+ * However, since we do read the status of HCB1 and use
+ * settings that always result in calls to control_dc_dc(dev,0)
+ * a BNC interface should work if the enable pin
+ * (dc/dc converter) is on HCB1.
+ * It will be called AUI however.
+ */
lp->adapter_cnf = 0;
i = readreg(dev, PP_LineCTL);
/* Preserve the setting of the HCB1 pin. */
- if ((i & (HCB1 | HCB1_ENBL)) == (HCB1 | HCB1_ENBL))
+ if ((i & (HCB1 | HCB1_ENBL)) == (HCB1 | HCB1_ENBL))
lp->adapter_cnf |= A_CNF_DC_DC_POLARITY;
/* Save the sqelch bit */
if ((i & LOW_RX_SQUELCH) == LOW_RX_SQUELCH)
@@ -549,92 +471,94 @@ cs89x0_probe1(struct net_device *dev, void __iomem *ioaddr, int modular)
/* Check if the card is in Auto mode. */
if ((i & (AUI_ONLY | AUTO_AUI_10BASET)) == AUTO_AUI_10BASET)
lp->adapter_cnf |= A_CNF_AUI | A_CNF_10B_T |
- A_CNF_MEDIA_AUI | A_CNF_MEDIA_10B_T | A_CNF_MEDIA_AUTO;
+ A_CNF_MEDIA_AUI | A_CNF_MEDIA_10B_T | A_CNF_MEDIA_AUTO;
if (net_debug > 1)
printk(KERN_INFO "%s: PP_LineCTL=0x%x, adapter_cnf=0x%x\n",
- dev->name, i, lp->adapter_cnf);
+ dev->name, i, lp->adapter_cnf);
/* IRQ. Other chips already probe, see below. */
if (lp->chip_type == CS8900)
lp->isa_config = readreg(dev, PP_CS8900_ISAINT) & INT_NO_MASK;
- printk( "[Cirrus EEPROM] ");
+ printk("[Cirrus EEPROM] ");
}
- printk("\n");
+ printk("\n");
/* First check to see if an EEPROM is attached. */
if ((readreg(dev, PP_SelfST) & EEPROM_PRESENT) == 0)
printk(KERN_WARNING "cs89x0: No EEPROM, relying on command line....\n");
- else if (get_eeprom_data(dev, START_EEPROM_DATA,CHKSUM_LEN,eeprom_buff) < 0) {
+ else if (get_eeprom_data(dev, START_EEPROM_DATA, CHKSUM_LEN, eeprom_buff) < 0) {
printk(KERN_WARNING "\ncs89x0: EEPROM read failed, relying on command line.\n");
- } else if (get_eeprom_cksum(START_EEPROM_DATA,CHKSUM_LEN,eeprom_buff) < 0) {
+ } else if (get_eeprom_cksum(START_EEPROM_DATA, CHKSUM_LEN, eeprom_buff) < 0) {
/* Check if the chip was able to read its own configuration starting
at 0 in the EEPROM*/
if ((readreg(dev, PP_SelfST) & (EEPROM_OK | EEPROM_PRESENT)) !=
- (EEPROM_OK|EEPROM_PRESENT))
- printk(KERN_WARNING "cs89x0: Extended EEPROM checksum bad and no Cirrus EEPROM, relying on command line\n");
+ (EEPROM_OK | EEPROM_PRESENT))
+ printk(KERN_WARNING "cs89x0: Extended EEPROM checksum bad and no Cirrus EEPROM, relying on command line\n");
- } else {
+ } else {
/* This reads an extended EEPROM that is not documented
- in the CS8900 datasheet. */
-
- /* get transmission control word but keep the autonegotiation bits */
- if (!lp->auto_neg_cnf) lp->auto_neg_cnf = eeprom_buff[AUTO_NEG_CNF_OFFSET/2];
- /* Store adapter configuration */
- if (!lp->adapter_cnf) lp->adapter_cnf = eeprom_buff[ADAPTER_CNF_OFFSET/2];
- /* Store ISA configuration */
- lp->isa_config = eeprom_buff[ISA_CNF_OFFSET/2];
- dev->mem_start = eeprom_buff[PACKET_PAGE_OFFSET/2] << 8;
-
- /* eeprom_buff has 32-bit ints, so we can't just memcpy it */
- /* store the initial memory base address */
- for (i = 0; i < ETH_ALEN/2; i++) {
- dev->dev_addr[i*2] = eeprom_buff[i];
- dev->dev_addr[i*2+1] = eeprom_buff[i] >> 8;
- }
+ * in the CS8900 datasheet.
+ */
+
+ /* get transmission control word but keep the autonegotiation bits */
+ if (!lp->auto_neg_cnf) lp->auto_neg_cnf = eeprom_buff[AUTO_NEG_CNF_OFFSET/2];
+ /* Store adapter configuration */
+ if (!lp->adapter_cnf) lp->adapter_cnf = eeprom_buff[ADAPTER_CNF_OFFSET/2];
+ /* Store ISA configuration */
+ lp->isa_config = eeprom_buff[ISA_CNF_OFFSET/2];
+ dev->mem_start = eeprom_buff[PACKET_PAGE_OFFSET/2] << 8;
+
+ /* eeprom_buff has 32-bit ints, so we can't just memcpy it */
+ /* store the initial memory base address */
+ for (i = 0; i < ETH_ALEN / 2; i++) {
+ dev->dev_addr[i * 2] = eeprom_buff[i];
+ dev->dev_addr[i * 2 + 1] = eeprom_buff[i] >> 8;
+ }
if (net_debug > 1)
printk(KERN_DEBUG "%s: new adapter_cnf: 0x%x\n",
- dev->name, lp->adapter_cnf);
- }
+ dev->name, lp->adapter_cnf);
+ }
- /* allow them to force multiple transceivers. If they force multiple, autosense */
- {
+ /* allow them to force multiple transceivers. If they force multiple, autosense */
+ {
int count = 0;
if (lp->force & FORCE_RJ45) {lp->adapter_cnf |= A_CNF_10B_T; count++; }
- if (lp->force & FORCE_AUI) {lp->adapter_cnf |= A_CNF_AUI; count++; }
+ if (lp->force & FORCE_AUI) {lp->adapter_cnf |= A_CNF_AUI; count++; }
if (lp->force & FORCE_BNC) {lp->adapter_cnf |= A_CNF_10B_2; count++; }
if (count > 1) {lp->adapter_cnf |= A_CNF_MEDIA_AUTO; }
else if (lp->force & FORCE_RJ45){lp->adapter_cnf |= A_CNF_MEDIA_10B_T; }
else if (lp->force & FORCE_AUI) {lp->adapter_cnf |= A_CNF_MEDIA_AUI; }
else if (lp->force & FORCE_BNC) {lp->adapter_cnf |= A_CNF_MEDIA_10B_2; }
- }
+ }
if (net_debug > 1)
printk(KERN_DEBUG "%s: after force 0x%x, adapter_cnf=0x%x\n",
- dev->name, lp->force, lp->adapter_cnf);
+ dev->name, lp->force, lp->adapter_cnf);
- /* FIXME: We don't let you set dc-dc polarity or low RX squelch from the command line: add it here */
+ /* FIXME: We don't let you set dc-dc polarity or low RX squelch from the command line: add it here */
- /* FIXME: We don't let you set the IMM bit from the command line: add it to lp->auto_neg_cnf here */
+ /* FIXME: We don't let you set the IMM bit from the command line: add it to lp->auto_neg_cnf here */
- /* FIXME: we don't set the Ethernet address on the command line. Use
- ifconfig IFACE hw ether AABBCCDDEEFF */
+ /* FIXME: we don't set the Ethernet address on the command line. Use
+ * ifconfig IFACE hw ether AABBCCDDEEFF
+ */
printk(KERN_INFO "cs89x0 media %s%s%s",
- (lp->adapter_cnf & A_CNF_10B_T)?"RJ-45,":"",
- (lp->adapter_cnf & A_CNF_AUI)?"AUI,":"",
- (lp->adapter_cnf & A_CNF_10B_2)?"BNC,":"");
+ (lp->adapter_cnf & A_CNF_10B_T) ? "RJ-45," : "",
+ (lp->adapter_cnf & A_CNF_AUI) ? "AUI," : "",
+ (lp->adapter_cnf & A_CNF_10B_2) ? "BNC," : "");
lp->irq_map = 0xffff;
/* If this is a CS8900 then no pnp soft */
if (lp->chip_type != CS8900 &&
/* Check if the ISA IRQ has been set */
- (i = readreg(dev, PP_CS8920_ISAINT) & 0xff,
- (i != 0 && i < CS8920_NO_INTS))) {
+ (i = readreg(dev, PP_CS8920_ISAINT) & 0xff,
+ (i != 0 && i < CS8920_NO_INTS))) {
if (!dev->irq)
dev->irq = i;
} else {
@@ -642,7 +566,7 @@ cs89x0_probe1(struct net_device *dev, void __iomem *ioaddr, int modular)
#ifndef CONFIG_CS89x0_PLATFORM
if (lp->chip_type == CS8900) {
#ifdef CS89x0_NONISA_IRQ
- i = cs8900_irq_map[0];
+ i = cs8900_irq_map[0];
#else
/* Translate the IRQ using the IRQ mapping table. */
if (i >= ARRAY_SIZE(cs8900_irq_map))
@@ -655,10 +579,10 @@ cs89x0_probe1(struct net_device *dev, void __iomem *ioaddr, int modular)
int irq_map_buff[IRQ_MAP_LEN/2];
if (get_eeprom_data(dev, IRQ_MAP_EEPROM_DATA,
- IRQ_MAP_LEN/2,
+ IRQ_MAP_LEN / 2,
irq_map_buff) >= 0) {
if ((irq_map_buff[0] & 0xff) == PNP_IRQ_FRMT)
- lp->irq_map = (irq_map_buff[0]>>8) | (irq_map_buff[1] << 8);
+ lp->irq_map = (irq_map_buff[0] >> 8) | (irq_map_buff[1] << 8);
}
#endif
}
@@ -730,9 +654,10 @@ cs89x0_ioport_probe(struct net_device *dev, unsigned long ioport, int modular)
}
/* if they give us an odd I/O address, then do ONE write to
- the address port, to get it back to address zero, where we
- expect to find the EISA signature word. An IO with a base of 0x3
- will skip the test for the ADD_PORT. */
+ * the address port, to get it back to address zero, where we
+ * expect to find the EISA signature word. An IO with a base of 0x3
+ * will skip the test for the ADD_PORT.
+ */
if (ioport & 1) {
if (net_debug > 1)
printk(KERN_INFO "%s: odd ioaddr 0x%lx\n",
@@ -742,8 +667,8 @@ cs89x0_ioport_probe(struct net_device *dev, unsigned long ioport, int modular)
if ((ioread16(io_mem + ADD_PORT) & ADD_MASK) !=
ADD_SIG) {
printk(KERN_ERR "%s: bad signature 0x%x\n",
- dev->name,
- ioread16(io_mem + ADD_PORT));
+ dev->name,
+ ioread16(io_mem + ADD_PORT));
ret = -ENODEV;
goto unmap;
}
@@ -762,12 +687,12 @@ out:
#ifndef MODULE
/* Check for a network adaptor of this type, and return '0' iff one exists.
- If dev->base_addr == 0, probe all likely locations.
- If dev->base_addr == 1, always return failure.
- If dev->base_addr == 2, allocate space for the device and return success
- (detachable devices only).
- Return 0 on success.
- */
+ * If dev->base_addr == 0, probe all likely locations.
+ * If dev->base_addr == 1, always return failure.
+ * If dev->base_addr == 2, allocate space for the device and return success
+ * (detachable devices only).
+ * Return 0 on success.
+ */
struct net_device * __init cs89x0_probe(int unit)
{
@@ -814,7 +739,7 @@ out:
/*********************************
* This page contains DMA routines
-**********************************/
+ *********************************/
#if ALLOW_DMA
@@ -882,7 +807,7 @@ dma_bufcfg(struct net_device *dev)
{
struct net_local *lp = netdev_priv(dev);
if (lp->use_dma)
- return (lp->isa_config & ANY_ISA_DMA)? RX_DMA_ENBL : 0;
+ return (lp->isa_config & ANY_ISA_DMA) ? RX_DMA_ENBL : 0;
else
return 0;
}
@@ -916,8 +841,8 @@ dma_rx(struct net_device *dev)
length = bp[2] + (bp[3]<<8);
bp += 4;
if (net_debug > 5) {
- printk( "%s: receiving DMA packet at %lx, status %x, length %x\n",
- dev->name, (unsigned long)bp, status, length);
+ printk("%s: receiving DMA packet at %lx, status %x, length %x\n",
+ dev->name, (unsigned long)bp, status, length);
}
if ((status & RX_OK) == 0) {
count_rx_errors(status, dev);
@@ -942,22 +867,22 @@ skip_this_frame:
if (bp + length > lp->end_dma_buff) {
int semi_cnt = lp->end_dma_buff - bp;
- memcpy(skb_put(skb,semi_cnt), bp, semi_cnt);
- memcpy(skb_put(skb,length - semi_cnt), lp->dma_buff,
+ memcpy(skb_put(skb, semi_cnt), bp, semi_cnt);
+ memcpy(skb_put(skb, length - semi_cnt), lp->dma_buff,
length - semi_cnt);
} else {
- memcpy(skb_put(skb,length), bp, length);
+ memcpy(skb_put(skb, length), bp, length);
}
bp += (length + 3) & ~3;
if (bp >= lp->end_dma_buff) bp -= lp->dmasize*1024;
lp->rx_dma_ptr = bp;
if (net_debug > 3) {
- printk( "%s: received %d byte DMA packet of type %x\n",
- dev->name, length,
- (skb->data[ETH_ALEN+ETH_ALEN] << 8) | skb->data[ETH_ALEN+ETH_ALEN+1]);
+ printk("%s: received %d byte DMA packet of type %x\n",
+ dev->name, length,
+ (skb->data[ETH_ALEN + ETH_ALEN] << 8) | skb->data[ETH_ALEN + ETH_ALEN + 1]);
}
- skb->protocol=eth_type_trans(skb,dev);
+ skb->protocol = eth_type_trans(skb, dev);
netif_rx(skb);
dev->stats.rx_packets++;
dev->stats.rx_bytes += length;
@@ -995,7 +920,7 @@ static void __init reset_chip(struct net_device *dev)
/* Wait until the chip is reset */
reset_start_time = jiffies;
- while( (readreg(dev, PP_SelfST) & INIT_DONE) == 0 && jiffies - reset_start_time < 2)
+ while ((readreg(dev, PP_SelfST) & INIT_DONE) == 0 && jiffies - reset_start_time < 2)
;
#endif /* !CONFIG_MACH_MX31ADS */
}
@@ -1038,38 +963,38 @@ detect_tp(struct net_device *dev)
if (net_debug > 1) printk("%s: Attempting TP\n", dev->name);
- /* If connected to another full duplex capable 10-Base-T card the link pulses
- seem to be lost when the auto detect bit in the LineCTL is set.
- To overcome this the auto detect bit will be cleared whilst testing the
- 10-Base-T interface. This would not be necessary for the sparrow chip but
- is simpler to do it anyway. */
- writereg(dev, PP_LineCTL, lp->linectl &~ AUI_ONLY);
+ /* If connected to another full duplex capable 10-Base-T card the link pulses
+ seem to be lost when the auto detect bit in the LineCTL is set.
+ To overcome this the auto detect bit will be cleared whilst testing the
+ 10-Base-T interface. This would not be necessary for the sparrow chip but
+ is simpler to do it anyway. */
+ writereg(dev, PP_LineCTL, lp->linectl & ~AUI_ONLY);
control_dc_dc(dev, 0);
- /* Delay for the hardware to work out if the TP cable is present - 150ms */
+ /* Delay for the hardware to work out if the TP cable is present - 150ms */
for (timenow = jiffies; jiffies - timenow < 15; )
- ;
+ ;
if ((readreg(dev, PP_LineST) & LINK_OK) == 0)
return DETECTED_NONE;
if (lp->chip_type == CS8900) {
- switch (lp->force & 0xf0) {
+ switch (lp->force & 0xf0) {
#if 0
- case FORCE_AUTO:
- printk("%s: cs8900 doesn't autonegotiate\n",dev->name);
- return DETECTED_NONE;
+ case FORCE_AUTO:
+ printk("%s: cs8900 doesn't autonegotiate\n", dev->name);
+ return DETECTED_NONE;
#endif
- /* CS8900 doesn't support AUTO, change to HALF*/
- case FORCE_AUTO:
+ /* CS8900 doesn't support AUTO, change to HALF*/
+ case FORCE_AUTO:
lp->force &= ~FORCE_AUTO;
- lp->force |= FORCE_HALF;
+ lp->force |= FORCE_HALF;
break;
case FORCE_HALF:
break;
- case FORCE_FULL:
+ case FORCE_FULL:
writereg(dev, PP_TestCTL, readreg(dev, PP_TestCTL) | FDX_8900);
break;
- }
+ }
fdx = readreg(dev, PP_TestCTL) & FDX_8900;
} else {
switch (lp->force & 0xf0) {
@@ -1082,12 +1007,12 @@ detect_tp(struct net_device *dev)
case FORCE_FULL:
lp->auto_neg_cnf = RE_NEG_NOW | ALLOW_FDX;
break;
- }
+ }
writereg(dev, PP_AutoNegCTL, lp->auto_neg_cnf & AUTO_NEG_MASK);
if ((lp->auto_neg_cnf & AUTO_NEG_BITS) == AUTO_NEG_ENABLE) {
- printk(KERN_INFO "%s: negotiating duplex...\n",dev->name);
+ printk(KERN_INFO "%s: negotiating duplex...\n", dev->name);
while (readreg(dev, PP_AutoNegST) & AUTO_NEG_BUSY) {
if (jiffies - timenow > 4000) {
printk(KERN_ERR "**** Full / half duplex auto-negotiation timed out ****\n");
@@ -1109,15 +1034,15 @@ send_test_pkt(struct net_device *dev)
{
struct net_local *lp = netdev_priv(dev);
char test_packet[] = { 0,0,0,0,0,0, 0,0,0,0,0,0,
- 0, 46, /* A 46 in network order */
- 0, 0, /* DSAP=0 & SSAP=0 fields */
- 0xf3, 0 /* Control (Test Req + P bit set) */ };
+ 0, 46, /* A 46 in network order */
+ 0, 0, /* DSAP=0 & SSAP=0 fields */
+ 0xf3, 0 /* Control (Test Req + P bit set) */ };
long timenow = jiffies;
writereg(dev, PP_LineCTL, readreg(dev, PP_LineCTL) | SERIAL_TX_ON);
- memcpy(test_packet, dev->dev_addr, ETH_ALEN);
- memcpy(test_packet+ETH_ALEN, dev->dev_addr, ETH_ALEN);
+ memcpy(test_packet, dev->dev_addr, ETH_ALEN);
+ memcpy(test_packet + ETH_ALEN, dev->dev_addr, ETH_ALEN);
iowrite16(TX_AFTER_ALL, lp->virt_addr + TX_CMD_PORT);
iowrite16(ETH_ZLEN, lp->virt_addr + TX_LEN_PORT);
@@ -1135,11 +1060,11 @@ send_test_pkt(struct net_device *dev)
if (net_debug > 1) printk("Sending test packet ");
/* wait a couple of jiffies for packet to be received */
for (timenow = jiffies; jiffies - timenow < 3; )
- ;
- if ((readreg(dev, PP_TxEvent) & TX_SEND_OK_BITS) == TX_OK) {
- if (net_debug > 1) printk("succeeded\n");
- return 1;
- }
+ ;
+ if ((readreg(dev, PP_TxEvent) & TX_SEND_OK_BITS) == TX_OK) {
+ if (net_debug > 1) printk("succeeded\n");
+ return 1;
+ }
if (net_debug > 1) printk("failed\n");
return 0;
}
@@ -1153,7 +1078,7 @@ detect_aui(struct net_device *dev)
if (net_debug > 1) printk("%s: Attempting AUI\n", dev->name);
control_dc_dc(dev, 0);
- writereg(dev, PP_LineCTL, (lp->linectl &~ AUTO_AUI_10BASET) | AUI_ONLY);
+ writereg(dev, PP_LineCTL, (lp->linectl & ~AUTO_AUI_10BASET) | AUI_ONLY);
if (send_test_pkt(dev))
return DETECTED_AUI;
@@ -1169,7 +1094,7 @@ detect_bnc(struct net_device *dev)
if (net_debug > 1) printk("%s: Attempting BNC\n", dev->name);
control_dc_dc(dev, 1);
- writereg(dev, PP_LineCTL, (lp->linectl &~ AUTO_AUI_10BASET) | AUI_ONLY);
+ writereg(dev, PP_LineCTL, (lp->linectl & ~AUTO_AUI_10BASET) | AUI_ONLY);
if (send_test_pkt(dev))
return DETECTED_BNC;
@@ -1208,7 +1133,7 @@ write_irq(struct net_device *dev, int chip_type, int irq)
This routine should set everything up anew at each open, even
registers that "should" only need to be set once at boot, so that
there is non-reboot way to recover if something goes wrong.
- */
+*/
/* AKPM: do we need to do any locking here? */
@@ -1224,7 +1149,7 @@ net_open(struct net_device *dev)
/* Allow interrupts to be generated by the chip */
/* Cirrus' release had this: */
#if 0
- writereg(dev, PP_BusCTL, readreg(dev, PP_BusCTL)|ENABLE_IRQ );
+ writereg(dev, PP_BusCTL, readreg(dev, PP_BusCTL) | ENABLE_IRQ);
#endif
/* And 2.3.47 had this: */
writereg(dev, PP_BusCTL, ENABLE_IRQ | MEMORY_ON);
@@ -1252,13 +1177,13 @@ net_open(struct net_device *dev)
#if !defined(CS89x0_NONISA_IRQ) && !defined(CONFIG_CS89x0_PLATFORM)
if (((1 << dev->irq) & lp->irq_map) == 0) {
printk(KERN_ERR "%s: IRQ %d is not in our map of allowable IRQs, which is %x\n",
- dev->name, dev->irq, lp->irq_map);
+ dev->name, dev->irq, lp->irq_map);
ret = -EAGAIN;
goto bad_out;
}
#endif
/* FIXME: Cirrus' release had this: */
- writereg(dev, PP_BusCTL, readreg(dev, PP_BusCTL)|ENABLE_IRQ );
+ writereg(dev, PP_BusCTL, readreg(dev, PP_BusCTL)|ENABLE_IRQ);
/* And 2.3.47 had this: */
#if 0
writereg(dev, PP_BusCTL, ENABLE_IRQ | MEMORY_ON);
@@ -1276,17 +1201,17 @@ net_open(struct net_device *dev)
if (lp->isa_config & ANY_ISA_DMA) {
unsigned long flags;
lp->dma_buff = (unsigned char *)__get_dma_pages(GFP_KERNEL,
- get_order(lp->dmasize * 1024));
+ get_order(lp->dmasize * 1024));
if (!lp->dma_buff) {
printk(KERN_ERR "%s: cannot get %dK memory for DMA\n", dev->name, lp->dmasize);
goto release_irq;
}
if (net_debug > 1) {
- printk( "%s: dma %lx %lx\n",
- dev->name,
- (unsigned long)lp->dma_buff,
- (unsigned long)isa_virt_to_bus(lp->dma_buff));
+ printk("%s: dma %lx %lx\n",
+ dev->name,
+ (unsigned long)lp->dma_buff,
+ (unsigned long)isa_virt_to_bus(lp->dma_buff));
}
if ((unsigned long) lp->dma_buff >= MAX_DMA_ADDRESS ||
!dma_page_eq(lp->dma_buff, lp->dma_buff+lp->dmasize*1024-1)) {
@@ -1314,64 +1239,64 @@ net_open(struct net_device *dev)
#endif /* ALLOW_DMA */
/* set the Ethernet address */
- for (i=0; i < ETH_ALEN/2; i++)
- writereg(dev, PP_IA+i*2, dev->dev_addr[i*2] | (dev->dev_addr[i*2+1] << 8));
+ for (i = 0; i < ETH_ALEN / 2; i++)
+ writereg(dev, PP_IA + i * 2, dev->dev_addr[i * 2] | (dev->dev_addr[i * 2 + 1] << 8));
/* while we're testing the interface, leave interrupts disabled */
writereg(dev, PP_BusCTL, MEMORY_ON);
/* Set the LineCTL quintuplet based on adapter configuration read from EEPROM */
if ((lp->adapter_cnf & A_CNF_EXTND_10B_2) && (lp->adapter_cnf & A_CNF_LOW_RX_SQUELCH))
- lp->linectl = LOW_RX_SQUELCH;
+ lp->linectl = LOW_RX_SQUELCH;
else
- lp->linectl = 0;
+ lp->linectl = 0;
- /* check to make sure that they have the "right" hardware available */
- switch(lp->adapter_cnf & A_CNF_MEDIA_TYPE) {
+ /* check to make sure that they have the "right" hardware available */
+ switch (lp->adapter_cnf & A_CNF_MEDIA_TYPE) {
case A_CNF_MEDIA_10B_T: result = lp->adapter_cnf & A_CNF_10B_T; break;
case A_CNF_MEDIA_AUI: result = lp->adapter_cnf & A_CNF_AUI; break;
case A_CNF_MEDIA_10B_2: result = lp->adapter_cnf & A_CNF_10B_2; break;
- default: result = lp->adapter_cnf & (A_CNF_10B_T | A_CNF_AUI | A_CNF_10B_2);
- }
- if (!result) {
- printk(KERN_ERR "%s: EEPROM is configured for unavailable media\n", dev->name);
+ default: result = lp->adapter_cnf & (A_CNF_10B_T | A_CNF_AUI | A_CNF_10B_2);
+ }
+ if (!result) {
+ printk(KERN_ERR "%s: EEPROM is configured for unavailable media\n", dev->name);
release_dma:
#if ALLOW_DMA
free_dma(dev->dma);
release_irq:
release_dma_buff(lp);
#endif
- writereg(dev, PP_LineCTL, readreg(dev, PP_LineCTL) & ~(SERIAL_TX_ON | SERIAL_RX_ON));
- free_irq(dev->irq, dev);
+ writereg(dev, PP_LineCTL, readreg(dev, PP_LineCTL) & ~(SERIAL_TX_ON | SERIAL_RX_ON));
+ free_irq(dev->irq, dev);
ret = -EAGAIN;
goto bad_out;
}
- /* set the hardware to the configured choice */
- switch(lp->adapter_cnf & A_CNF_MEDIA_TYPE) {
+ /* set the hardware to the configured choice */
+ switch (lp->adapter_cnf & A_CNF_MEDIA_TYPE) {
case A_CNF_MEDIA_10B_T:
- result = detect_tp(dev);
- if (result==DETECTED_NONE) {
- printk(KERN_WARNING "%s: 10Base-T (RJ-45) has no cable\n", dev->name);
- if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */
- result = DETECTED_RJ45H; /* Yes! I don't care if I see a link pulse */
- }
+ result = detect_tp(dev);
+ if (result == DETECTED_NONE) {
+ printk(KERN_WARNING "%s: 10Base-T (RJ-45) has no cable\n", dev->name);
+ if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */
+ result = DETECTED_RJ45H; /* Yes! I don't care if I see a link pulse */
+ }
break;
case A_CNF_MEDIA_AUI:
- result = detect_aui(dev);
- if (result==DETECTED_NONE) {
- printk(KERN_WARNING "%s: 10Base-5 (AUI) has no cable\n", dev->name);
- if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */
- result = DETECTED_AUI; /* Yes! I don't care if I see a carrrier */
- }
+ result = detect_aui(dev);
+ if (result == DETECTED_NONE) {
+ printk(KERN_WARNING "%s: 10Base-5 (AUI) has no cable\n", dev->name);
+ if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */
+ result = DETECTED_AUI; /* Yes! I don't care if I see a carrrier */
+ }
break;
case A_CNF_MEDIA_10B_2:
- result = detect_bnc(dev);
- if (result==DETECTED_NONE) {
- printk(KERN_WARNING "%s: 10Base-2 (BNC) has no cable\n", dev->name);
- if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */
- result = DETECTED_BNC; /* Yes! I don't care if I can xmit a packet */
- }
+ result = detect_bnc(dev);
+ if (result == DETECTED_NONE) {
+ printk(KERN_WARNING "%s: 10Base-2 (BNC) has no cable\n", dev->name);
+ if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */
+ result = DETECTED_BNC; /* Yes! I don't care if I can xmit a packet */
+ }
break;
case A_CNF_MEDIA_AUTO:
writereg(dev, PP_LineCTL, lp->linectl | AUTO_AUI_10BASET);
@@ -1387,7 +1312,7 @@ release_irq:
printk(KERN_ERR "%s: no media detected\n", dev->name);
goto release_dma;
}
- switch(result) {
+ switch (result) {
case DETECTED_NONE:
printk(KERN_ERR "%s: no network cable attached to configured media\n", dev->name);
goto release_dma;
@@ -1422,22 +1347,22 @@ release_irq:
writereg(dev, PP_RxCFG, lp->curr_rx_cfg);
writereg(dev, PP_TxCFG, TX_LOST_CRS_ENBL | TX_SQE_ERROR_ENBL | TX_OK_ENBL |
- TX_LATE_COL_ENBL | TX_JBR_ENBL | TX_ANY_COL_ENBL | TX_16_COL_ENBL);
+ TX_LATE_COL_ENBL | TX_JBR_ENBL | TX_ANY_COL_ENBL | TX_16_COL_ENBL);
writereg(dev, PP_BufCFG, READY_FOR_TX_ENBL | RX_MISS_COUNT_OVRFLOW_ENBL |
#if ALLOW_DMA
- dma_bufcfg(dev) |
+ dma_bufcfg(dev) |
#endif
- TX_COL_COUNT_OVRFLOW_ENBL | TX_UNDERRUN_ENBL);
+ TX_COL_COUNT_OVRFLOW_ENBL | TX_UNDERRUN_ENBL);
/* now that we've got our act together, enable everything */
writereg(dev, PP_BusCTL, ENABLE_IRQ
- | (dev->mem_start?MEMORY_ON : 0) /* turn memory on */
+ | (dev->mem_start ? MEMORY_ON : 0) /* turn memory on */
#if ALLOW_DMA
| dma_busctl(dev)
#endif
- );
- netif_start_queue(dev);
+ );
+ netif_start_queue(dev);
if (net_debug > 1)
printk("cs89x0: net_open() succeeded\n");
return 0;
@@ -1450,25 +1375,25 @@ static void net_timeout(struct net_device *dev)
/* If we get here, some higher level has decided we are broken.
There should really be a "kick me" function call instead. */
if (net_debug > 0) printk("%s: transmit timed out, %s?\n", dev->name,
- tx_done(dev) ? "IRQ conflict ?" : "network cable problem");
+ tx_done(dev) ? "IRQ conflict ?" : "network cable problem");
/* Try to restart the adaptor. */
netif_wake_queue(dev);
}
-static netdev_tx_t net_send_packet(struct sk_buff *skb,struct net_device *dev)
+static netdev_tx_t net_send_packet(struct sk_buff *skb, struct net_device *dev)
{
struct net_local *lp = netdev_priv(dev);
unsigned long flags;
if (net_debug > 3) {
printk("%s: sent %d byte packet of type %x\n",
- dev->name, skb->len,
- (skb->data[ETH_ALEN+ETH_ALEN] << 8) | skb->data[ETH_ALEN+ETH_ALEN+1]);
+ dev->name, skb->len,
+ (skb->data[ETH_ALEN + ETH_ALEN] << 8) | skb->data[ETH_ALEN + ETH_ALEN + 1]);
}
/* keep the upload from being interrupted, since we
- ask the chip to start transmitting before the
- whole packet has been completely uploaded. */
+ ask the chip to start transmitting before the
+ whole packet has been completely uploaded. */
spin_lock_irqsave(&lp->lock, flags);
netif_stop_queue(dev);
@@ -1479,8 +1404,7 @@ static netdev_tx_t net_send_packet(struct sk_buff *skb,struct net_device *dev)
/* Test to see if the chip has allocated memory for the packet */
if ((readreg(dev, PP_BusST) & READY_FOR_TX_NOW) == 0) {
- /*
- * Gasp! It hasn't. But that shouldn't happen since
+ /* Gasp! It hasn't. But that shouldn't happen since
* we're waiting for TxOk, so return 1 and requeue this packet.
*/
@@ -1492,10 +1416,9 @@ static netdev_tx_t net_send_packet(struct sk_buff *skb,struct net_device *dev)
writewords(lp, TX_FRAME_PORT, skb->data, (skb->len+1) >> 1);
spin_unlock_irqrestore(&lp->lock, flags);
dev->stats.tx_bytes += skb->len;
- dev_kfree_skb (skb);
+ dev_kfree_skb(skb);
- /*
- * We DO NOT call netif_wake_queue() here.
+ /* We DO NOT call netif_wake_queue() here.
* We also DO NOT call netif_start_queue().
*
* Either of these would cause another bottom half run through
@@ -1509,28 +1432,30 @@ static netdev_tx_t net_send_packet(struct sk_buff *skb,struct net_device *dev)
}
/* The typical workload of the driver:
- Handle the network interface interrupts. */
+ * Handle the network interface interrupts.
+ */
static irqreturn_t net_interrupt(int irq, void *dev_id)
{
struct net_device *dev = dev_id;
struct net_local *lp;
int status;
- int handled = 0;
+ int handled = 0;
lp = netdev_priv(dev);
/* we MUST read all the events out of the ISQ, otherwise we'll never
- get interrupted again. As a consequence, we can't have any limit
- on the number of times we loop in the interrupt handler. The
- hardware guarantees that eventually we'll run out of events. Of
- course, if you're on a slow machine, and packets are arriving
- faster than you can read them off, you're screwed. Hasta la
- vista, baby! */
+ * get interrupted again. As a consequence, we can't have any limit
+ * on the number of times we loop in the interrupt handler. The
+ * hardware guarantees that eventually we'll run out of events. Of
+ * course, if you're on a slow machine, and packets are arriving
+ * faster than you can read them off, you're screwed. Hasta la
+ * vista, baby!
+ */
while ((status = ioread16(lp->virt_addr + ISQ_PORT))) {
if (net_debug > 4)printk("%s: event=%04x\n", dev->name, status);
handled = 1;
- switch(status & ISQ_EVENT_MASK) {
+ switch (status & ISQ_EVENT_MASK) {
case ISQ_RECEIVER_EVENT:
/* Got a packet(s). */
net_rx(dev);
@@ -1538,11 +1463,11 @@ static irqreturn_t net_interrupt(int irq, void *dev_id)
case ISQ_TRANSMITTER_EVENT:
dev->stats.tx_packets++;
netif_wake_queue(dev); /* Inform upper layers. */
- if ((status & ( TX_OK |
- TX_LOST_CRS |
- TX_SQE_ERROR |
- TX_LATE_COL |
- TX_16_COL)) != TX_OK) {
+ if ((status & (TX_OK |
+ TX_LOST_CRS |
+ TX_SQE_ERROR |
+ TX_LATE_COL |
+ TX_16_COL)) != TX_OK) {
if ((status & TX_OK) == 0)
dev->stats.tx_errors++;
if (status & TX_LOST_CRS)
@@ -1558,31 +1483,33 @@ static irqreturn_t net_interrupt(int irq, void *dev_id)
case ISQ_BUFFER_EVENT:
if (status & READY_FOR_TX) {
/* we tried to transmit a packet earlier,
- but inexplicably ran out of buffers.
- That shouldn't happen since we only ever
- load one packet. Shrug. Do the right
- thing anyway. */
+ * but inexplicably ran out of buffers.
+ * That shouldn't happen since we only ever
+ * load one packet. Shrug. Do the right
+ * thing anyway.
+ */
netif_wake_queue(dev); /* Inform upper layers. */
}
if (status & TX_UNDERRUN) {
if (net_debug > 0) printk("%s: transmit underrun\n", dev->name);
- lp->send_underrun++;
- if (lp->send_underrun == 3) lp->send_cmd = TX_AFTER_381;
- else if (lp->send_underrun == 6) lp->send_cmd = TX_AFTER_ALL;
+ lp->send_underrun++;
+ if (lp->send_underrun == 3) lp->send_cmd = TX_AFTER_381;
+ else if (lp->send_underrun == 6) lp->send_cmd = TX_AFTER_ALL;
/* transmit cycle is done, although
- frame wasn't transmitted - this
- avoids having to wait for the upper
- layers to timeout on us, in the
- event of a tx underrun */
+ * frame wasn't transmitted - this
+ * avoids having to wait for the upper
+ * layers to timeout on us, in the
+ * event of a tx underrun
+ */
netif_wake_queue(dev); /* Inform upper layers. */
- }
+ }
#if ALLOW_DMA
if (lp->use_dma && (status & RX_DMA)) {
int count = readreg(dev, PP_DmaFrameCnt);
- while(count) {
+ while (count) {
if (net_debug > 5)
printk("%s: receiving %d DMA frames\n", dev->name, count);
- if (net_debug > 2 && count >1)
+ if (net_debug > 2 && count > 1)
printk("%s: receiving %d DMA frames\n", dev->name, count);
dma_rx(dev);
if (--count == 0)
@@ -1651,12 +1578,12 @@ net_rx(struct net_device *dev)
skb->data[length-1] = ioread16(lp->virt_addr + RX_FRAME_PORT);
if (net_debug > 3) {
- printk( "%s: received %d byte packet of type %x\n",
- dev->name, length,
- (skb->data[ETH_ALEN+ETH_ALEN] << 8) | skb->data[ETH_ALEN+ETH_ALEN+1]);
+ printk("%s: received %d byte packet of type %x\n",
+ dev->name, length,
+ (skb->data[ETH_ALEN + ETH_ALEN] << 8) | skb->data[ETH_ALEN + ETH_ALEN + 1]);
}
- skb->protocol=eth_type_trans(skb,dev);
+ skb->protocol = eth_type_trans(skb, dev);
netif_rx(skb);
dev->stats.rx_packets++;
dev->stats.rx_bytes += length;
@@ -1700,8 +1627,9 @@ net_close(struct net_device *dev)
return 0;
}
-/* Get the current statistics. This may be called with the card open or
- closed. */
+/* Get the current statistics.
+ * This may be called with the card open or closed.
+ */
static struct net_device_stats *
net_get_stats(struct net_device *dev)
{
@@ -1723,7 +1651,7 @@ static void set_multicast_list(struct net_device *dev)
unsigned long flags;
spin_lock_irqsave(&lp->lock, flags);
- if(dev->flags&IFF_PROMISC)
+ if (dev->flags&IFF_PROMISC)
{
lp->rx_mode = RX_ALL_ACCEPT;
}
@@ -1740,7 +1668,7 @@ static void set_multicast_list(struct net_device *dev)
/* in promiscuous mode, we accept errored packets, so we have to enable interrupts on them also */
writereg(dev, PP_RxCFG, lp->curr_rx_cfg |
- (lp->rx_mode == RX_ALL_ACCEPT? (RX_CRC_ERROR_ENBL|RX_RUNT_ENBL|RX_EXTRA_DATA_ENBL) : 0));
+ (lp->rx_mode == RX_ALL_ACCEPT ? (RX_CRC_ERROR_ENBL|RX_RUNT_ENBL|RX_EXTRA_DATA_ENBL) : 0));
spin_unlock_irqrestore(&lp->lock, flags);
}
@@ -1760,8 +1688,8 @@ static int set_mac_address(struct net_device *dev, void *p)
dev->name, dev->dev_addr);
/* set the Ethernet address */
- for (i=0; i < ETH_ALEN/2; i++)
- writereg(dev, PP_IA+i*2, dev->dev_addr[i*2] | (dev->dev_addr[i*2+1] << 8));
+ for (i = 0; i < ETH_ALEN / 2; i++)
+ writereg(dev, PP_IA + i * 2, dev->dev_addr[i * 2] | (dev->dev_addr[i * 2 + 1] << 8));
return 0;
}
@@ -1770,8 +1698,7 @@ static int set_mac_address(struct net_device *dev, void *p)
static struct net_device *dev_cs89x0;
-/*
- * Support the 'debug' module parm even if we're compiled for non-debug to
+/* Support the 'debug' module parm even if we're compiled for non-debug to
* avoid breaking someone's startup scripts
*/
@@ -1779,11 +1706,11 @@ static int io;
static int irq;
static int debug;
static char media[8];
-static int duplex=-1;
+static int duplex = -1;
static int use_dma; /* These generate unused var warnings if ALLOW_DMA = 0 */
static int dma;
-static int dmasize=16; /* or 64 */
+static int dmasize = 16; /* or 64 */
module_param(io, int, 0);
module_param(irq, int, 0);
@@ -1816,32 +1743,28 @@ MODULE_PARM_DESC(use_dma , "(ignored)");
MODULE_AUTHOR("Mike Cruse, Russwll Nelson <nelson@crynwr.com>, Andrew Morton");
MODULE_LICENSE("GPL");
-
/*
-* media=t - specify media type
- or media=2
- or media=aui
- or medai=auto
-* duplex=0 - specify forced half/full/autonegotiate duplex
-* debug=# - debug level
-
-
-* Default Chip Configuration:
- * DMA Burst = enabled
- * IOCHRDY Enabled = enabled
- * UseSA = enabled
- * CS8900 defaults to half-duplex if not specified on command-line
- * CS8920 defaults to autoneg if not specified on command-line
- * Use reset defaults for other config parameters
-
-* Assumptions:
- * media type specified is supported (circuitry is present)
- * if memory address is > 1MB, then required mem decode hw is present
- * if 10B-2, then agent other than driver will enable DC/DC converter
- (hw or software util)
-
-
-*/
+ * media=t - specify media type
+ * or media=2
+ * or media=aui
+ * or medai=auto
+ * duplex=0 - specify forced half/full/autonegotiate duplex
+ * debug=# - debug level
+ *
+ * Default Chip Configuration:
+ * DMA Burst = enabled
+ * IOCHRDY Enabled = enabled
+ * UseSA = enabled
+ * CS8900 defaults to half-duplex if not specified on command-line
+ * CS8920 defaults to autoneg if not specified on command-line
+ * Use reset defaults for other config parameters
+ *
+ * Assumptions:
+ * media type specified is supported (circuitry is present)
+ * if memory address is > 1MB, then required mem decode hw is present
+ * if 10B-2, then agent other than driver will enable DC/DC converter
+ * (hw or software util)
+ */
int __init init_module(void)
{
@@ -1871,8 +1794,8 @@ int __init init_module(void)
spin_lock_init(&lp->lock);
- /* boy, they'd better get these right */
- if (!strcmp(media, "rj45"))
+ /* boy, they'd better get these right */
+ if (!strcmp(media, "rj45"))
lp->adapter_cnf = A_CNF_MEDIA_10B_T | A_CNF_10B_T;
else if (!strcmp(media, "aui"))
lp->adapter_cnf = A_CNF_MEDIA_AUI | A_CNF_AUI;
@@ -1881,15 +1804,15 @@ int __init init_module(void)
else
lp->adapter_cnf = A_CNF_MEDIA_10B_T | A_CNF_10B_T;
- if (duplex==-1)
+ if (duplex == -1)
lp->auto_neg_cnf = AUTO_NEG_ENABLE;
- if (io == 0) {
- printk(KERN_ERR "cs89x0.c: Module autoprobing not allowed.\n");
- printk(KERN_ERR "cs89x0.c: Append io=0xNNN\n");
- ret = -EPERM;
+ if (io == 0) {
+ printk(KERN_ERR "cs89x0.c: Module autoprobing not allowed.\n");
+ printk(KERN_ERR "cs89x0.c: Append io=0xNNN\n");
+ ret = -EPERM;
goto out;
- } else if (io <= 0x1ff) {
+ } else if (io <= 0x1ff) {
ret = -ENXIO;
goto out;
}
@@ -1985,8 +1908,7 @@ static int cs89x0_platform_remove(struct platform_device *pdev)
struct net_local *lp = netdev_priv(dev);
struct resource *mem_res;
- /*
- * This platform_get_resource() call will not return NULL, because
+ /* This platform_get_resource() call will not return NULL, because
* the same call in cs89x0_platform_probe() has returned a non NULL
* value.
*/
@@ -2021,13 +1943,3 @@ static void __exit cs89x0_cleanup(void)
module_exit(cs89x0_cleanup);
#endif /* CONFIG_CS89x0_PLATFORM */
-
-/*
- * Local variables:
- * version-control: t
- * kept-new-versions: 5
- * c-indent-level: 8
- * tab-width: 8
- * End:
- *
- */
Neaten the comments and reflow the code without changing anything other than whitespace. git diff -w shows just comment neatening and a few line removals. Signed-off-by: Joe Perches <joe@perches.com> --- drivers/net/ethernet/cirrus/cs89x0.c | 734 +++++++++++++++------------------- 1 files changed, 323 insertions(+), 411 deletions(-)