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Commit 659f7c1a authored by Len Brown's avatar Len Brown
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merge

parents 4b5f87b0 e878a1dd
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Documentation/i2c/porting-clients
View file @ 659f7c1a
......@@ -92,10 +92,7 @@ Technical changes:
i2c_get_clientdata(client) instead.
* [Interface] Init function should not print anything. Make sure
there is a MODULE_LICENSE() line. MODULE_PARM() is replaced
by module_param(). Note that module_param has a third parameter,
that you should set to 0 by default. See include/linux/moduleparam.h
for details.
there is a MODULE_LICENSE() line.
Coding policy:
......
arch/ia64/kernel/unaligned.c
View file @ 659f7c1a
/*
* Architecture-specific unaligned trap handling.
*
* Copyright (C) 1999-2002 Hewlett-Packard Co
* Copyright (C) 1999-2002, 2004 Hewlett-Packard Co
* Stephane Eranian <eranian@hpl.hp.com>
* David Mosberger-Tang <davidm@hpl.hp.com>
*
......@@ -1328,7 +1328,7 @@ ia64_handle_unaligned (unsigned long ifa, struct pt_regs *regs)
* handler into reading an arbitrary kernel addresses...
*/
if (!user_mode(regs))
eh = SEARCH_EXCEPTION_TABLE(regs);
eh = search_exception_tables(regs->cr_iip + ia64_psr(regs)->ri);
if (user_mode(regs) || eh) {
if ((current->thread.flags & IA64_THREAD_UAC_SIGBUS) != 0)
goto force_sigbus;
......
arch/ia64/mm/extable.c
View file @ 659f7c1a
/*
* Kernel exception handling table support. Derived from arch/alpha/mm/extable.c.
*
* Copyright (C) 1998, 1999, 2001-2002 Hewlett-Packard Co
* Copyright (C) 1998, 1999, 2001-2002, 2004 Hewlett-Packard Co
* David Mosberger-Tang <davidm@hpl.hp.com>
*/
......@@ -10,9 +10,51 @@
#include <asm/uaccess.h>
#include <asm/module.h>
void sort_extable(struct exception_table_entry *start,
struct exception_table_entry *finish)
static inline int
compare_entries (struct exception_table_entry *l, struct exception_table_entry *r)
{
u64 lip = (u64) &l->addr + l->addr;
u64 rip = (u64) &r->addr + r->addr;
if (lip < rip)
return -1;
if (lip == rip)
return 0;
else
return 1;
}
static inline void
swap_entries (struct exception_table_entry *l, struct exception_table_entry *r)
{
u64 delta = (u64) r - (u64) l;
struct exception_table_entry tmp;
tmp = *l;
l->addr = r->addr + delta;
l->cont = r->cont + delta;
r->addr = tmp.addr - delta;
r->cont = tmp.cont - delta;
}
/*
* Sort the exception table. It's usually already sorted, but there may be unordered
* entries due to multiple text sections (such as the .init text section). Note that the
* exception-table-entries contain location-relative addresses, which requires a bit of
* care during sorting to avoid overflows in the offset members (e.g., it would not be
* safe to make a temporary copy of an exception-table entry on the stack, because the
* stack may be more than 2GB away from the exception-table).
*/
void
sort_extable (struct exception_table_entry *start, struct exception_table_entry *finish)
{
struct exception_table_entry *p, *q;
/* insertion sort */
for (p = start + 1; p < finish; ++p)
/* start .. p-1 is sorted; push p down to it's proper place */
for (q = p; q > start && compare_entries(&q[0], &q[-1]) < 0; --q)
swap_entries(&q[0], &q[-1]);
}
const struct exception_table_entry *
......
arch/ia64/mm/fault.c
View file @ 659f7c1a
......@@ -58,7 +58,7 @@ mapped_kernel_page_is_present (unsigned long address)
if (pgd_none(*pgd) || pgd_bad(*pgd))
return 0;
pmd = pmd_offset(pgd,address);
pmd = pmd_offset(pgd, address);
if (pmd_none(*pmd) || pmd_bad(*pmd))
return 0;
......
arch/ia64/sn/kernel/sn2/timer_interrupt.c
View file @ 659f7c1a
......@@ -48,7 +48,6 @@ sn_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
if (!pda->hb_count--) {
pda->hb_count = HZ/2;
set_led_bits(pda->hb_state ^= LED_CPU_HEARTBEAT, LED_CPU_HEARTBEAT);
printk("Blink\n");
}
if (enable_shub_wars_1_1()) {
......
arch/x86_64/mm/extable.c
View file @ 659f7c1a
......@@ -55,5 +55,4 @@ void sort_extable(struct exception_table_entry *start,
}
}
} while (change != 0);
return 0;
}
arch/x86_64/mm/k8topology.c
View file @ 659f7c1a
......@@ -75,7 +75,7 @@ int __init k8_scan_nodes(unsigned long start, unsigned long end)
continue;
}
if (nodeid >= numnodes) {
printk("Ignoring excess node %d (%x:%x)\n", nodeid,
printk("Ignoring excess node %d (%lx:%lx)\n", nodeid,
base, limit);
continue;
}
......
drivers/cpufreq/cpufreq.c
View file @ 659f7c1a
......@@ -868,7 +868,7 @@ int cpufreq_update_policy(unsigned int cpu)
down(&data->lock);
memcpy(&policy,
data,
data,
sizeof(struct cpufreq_policy));
policy.min = data->user_policy.min;
policy.max = data->user_policy.max;
......
drivers/i2c/busses/i2c-parport.h
View file @ 659f7c1a
......@@ -67,12 +67,13 @@ static struct adapter_parm adapter_parm[] = {
.getsda = { 0x40, STAT, 1 },
.getscl = { 0x08, STAT, 1 },
},
/* type 4: ADM 1032 evaluation board */
/* type 4: ADM1025 and ADM1032 evaluation boards */
{
.setsda = { 0x02, DATA, 1 },
.setscl = { 0x01, DATA, 1 },
.getsda = { 0x10, STAT, 1 },
.init = { 0xf0, DATA, 0 },
.init = { 0xf0, DATA, 0 }, /* ADM1025 doesn't need this,
but it doesn't hurt */
},
};
......@@ -84,4 +85,4 @@ MODULE_PARM_DESC(type,
" 1 = home brew teletext adapter\n"
" 2 = Velleman K8000 adapter\n"
" 3 = ELV adapter\n"
" 4 = ADM 1032 evalulation board\n");
" 4 = ADM1025 and ADM1032 evaluation boards\n");
drivers/i2c/busses/i2c-philips-par.c
View file @ 659f7c1a
......@@ -184,8 +184,8 @@ static void i2c_parport_attach (struct parport *port)
return;
}
/* reset hardware to sane state */
bit_lp_setsda(port, 1);
bit_lp_setscl(port, 1);
adapter->bit_lp_data.setsda(port, 1);
adapter->bit_lp_data.setscl(port, 1);
parport_release(adapter->pdev);
if (i2c_bit_add_bus(&adapter->adapter) < 0) {
......
drivers/i2c/busses/i2c-piix4.c
View file @ 659f7c1a
......@@ -68,6 +68,9 @@ struct sd {
#define SMBSLVEVT (0xA + piix4_smba)
#define SMBSLVDAT (0xC + piix4_smba)
/* count for request_region */
#define SMBIOSIZE 8
/* PCI Address Constants */
#define SMBBA 0x090
#define SMBHSTCFG 0x0D2
......@@ -112,14 +115,13 @@ MODULE_PARM_DESC(fix_hstcfg,
static int piix4_transaction(void);
static unsigned short piix4_smba = 0;
static struct i2c_adapter piix4_adapter;
/*
* Get DMI information.
*/
static int ibm_dmi_probe(void)
static int __devinit ibm_dmi_probe(void)
{
#ifdef CONFIG_X86
extern int is_unsafe_smbus;
......@@ -129,9 +131,9 @@ static int ibm_dmi_probe(void)
#endif
}
static int piix4_setup(struct pci_dev *PIIX4_dev, const struct pci_device_id *id)
static int __devinit piix4_setup(struct pci_dev *PIIX4_dev,
const struct pci_device_id *id)
{
int error_return = 0;
unsigned char temp;
/* match up the function */
......@@ -144,8 +146,7 @@ static int piix4_setup(struct pci_dev *PIIX4_dev, const struct pci_device_id *id
dev_err(&PIIX4_dev->dev, "IBM Laptop detected; this module "
"may corrupt your serial eeprom! Refusing to load "
"module!\n");
error_return = -EPERM;
goto END;
return -EPERM;
}
/* Determine the address of the SMBus areas */
......@@ -163,11 +164,10 @@ static int piix4_setup(struct pci_dev *PIIX4_dev, const struct pci_device_id *id
}
}
if (!request_region(piix4_smba, 8, "piix4-smbus")) {
if (!request_region(piix4_smba, SMBIOSIZE, "piix4-smbus")) {
dev_err(&PIIX4_dev->dev, "SMB region 0x%x already in use!\n",
piix4_smba);
error_return = -ENODEV;
goto END;
return -ENODEV;
}
pci_read_config_byte(PIIX4_dev, SMBHSTCFG, &temp);
......@@ -214,8 +214,9 @@ static int piix4_setup(struct pci_dev *PIIX4_dev, const struct pci_device_id *id
} else {
dev_err(&PIIX4_dev->dev,
"Host SMBus controller not enabled!\n");
error_return = -ENODEV;
goto END;
release_region(piix4_smba, SMBIOSIZE);
piix4_smba = 0;
return -ENODEV;
}
}
......@@ -231,8 +232,7 @@ static int piix4_setup(struct pci_dev *PIIX4_dev, const struct pci_device_id *id
dev_dbg(&PIIX4_dev->dev, "SMBREV = 0x%X\n", temp);
dev_dbg(&PIIX4_dev->dev, "SMBA = 0x%X\n", piix4_smba);
END:
return error_return;
return 0;
}
/* Another internally used function */
......@@ -465,7 +465,8 @@ static struct pci_device_id piix4_ids[] = {
{ 0, }
};
static int __devinit piix4_probe(struct pci_dev *dev, const struct pci_device_id *id)
static int __devinit piix4_probe(struct pci_dev *dev,
const struct pci_device_id *id)
{
int retval;
......@@ -479,17 +480,24 @@ static int __devinit piix4_probe(struct pci_dev *dev, const struct pci_device_id
snprintf(piix4_adapter.name, I2C_NAME_SIZE,
"SMBus PIIX4 adapter at %04x", piix4_smba);
retval = i2c_add_adapter(&piix4_adapter);
if ((retval = i2c_add_adapter(&piix4_adapter))) {
dev_err(&dev->dev, "Couldn't register adapter!\n");
release_region(piix4_smba, SMBIOSIZE);
piix4_smba = 0;
}
return retval;
}
static void __devexit piix4_remove(struct pci_dev *dev)
{
i2c_del_adapter(&piix4_adapter);
if (piix4_smba) {
i2c_del_adapter(&piix4_adapter);
release_region(piix4_smba, SMBIOSIZE);
piix4_smba = 0;
}
}
static struct pci_driver piix4_driver = {
.name = "piix4-smbus",
.id_table = piix4_ids,
......@@ -502,15 +510,13 @@ static int __init i2c_piix4_init(void)
return pci_module_init(&piix4_driver);
}
static void __exit i2c_piix4_exit(void)
{
pci_unregister_driver(&piix4_driver);
release_region(piix4_smba, 8);
}
MODULE_AUTHOR
("Frodo Looijaard <frodol@dds.nl> and Philip Edelbrock <phil@netroedge.com>");
MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl> and "
"Philip Edelbrock <phil@netroedge.com>");
MODULE_DESCRIPTION("PIIX4 SMBus driver");
MODULE_LICENSE("GPL");
......
drivers/i2c/chips/lm75.c
View file @ 659f7c1a
......@@ -104,9 +104,9 @@ static ssize_t set_##value(struct device *dev, const char *buf, size_t count) \
set(temp_max, LM75_REG_TEMP_OS);
set(temp_hyst, LM75_REG_TEMP_HYST);
static DEVICE_ATTR(temp_max, S_IWUSR | S_IRUGO, show_temp_max, set_temp_max);
static DEVICE_ATTR(temp_hyst, S_IWUSR | S_IRUGO, show_temp_hyst, set_temp_hyst);
static DEVICE_ATTR(temp_input, S_IRUGO, show_temp_input, NULL);
static DEVICE_ATTR(temp_max1, S_IWUSR | S_IRUGO, show_temp_max, set_temp_max);
static DEVICE_ATTR(temp_hyst1, S_IWUSR | S_IRUGO, show_temp_hyst, set_temp_hyst);
static DEVICE_ATTR(temp_input1, S_IRUGO, show_temp_input, NULL);
static int lm75_attach_adapter(struct i2c_adapter *adapter)
{
......@@ -197,9 +197,9 @@ static int lm75_detect(struct i2c_adapter *adapter, int address, int kind)
lm75_init_client(new_client);
/* Register sysfs hooks */
device_create_file(&new_client->dev, &dev_attr_temp_max);
device_create_file(&new_client->dev, &dev_attr_temp_hyst);
device_create_file(&new_client->dev, &dev_attr_temp_input);
device_create_file(&new_client->dev, &dev_attr_temp_max1);
device_create_file(&new_client->dev, &dev_attr_temp_hyst1);
device_create_file(&new_client->dev, &dev_attr_temp_input1);
return 0;
......
drivers/i2c/chips/lm78.c
View file @ 659f7c1a
......@@ -369,10 +369,10 @@ static ssize_t set_temp_hyst(struct device *dev, const char *buf, size_t count)
return count;
}
static DEVICE_ATTR(temp_input, S_IRUGO, show_temp, NULL)
static DEVICE_ATTR(temp_max, S_IRUGO | S_IWUSR,
static DEVICE_ATTR(temp_input1, S_IRUGO, show_temp, NULL)
static DEVICE_ATTR(temp_max1, S_IRUGO | S_IWUSR,
show_temp_over, set_temp_over)
static DEVICE_ATTR(temp_hyst, S_IRUGO | S_IWUSR,
static DEVICE_ATTR(temp_hyst1, S_IRUGO | S_IWUSR,
show_temp_hyst, set_temp_hyst)
/* 3 Fans */
......@@ -678,9 +678,9 @@ int lm78_detect(struct i2c_adapter *adapter, int address, int kind)
device_create_file(&new_client->dev, &dev_attr_in_input6);
device_create_file(&new_client->dev, &dev_attr_in_min6);
device_create_file(&new_client->dev, &dev_attr_in_max6);
device_create_file(&new_client->dev, &dev_attr_temp_input);
device_create_file(&new_client->dev, &dev_attr_temp_max);
device_create_file(&new_client->dev, &dev_attr_temp_hyst);
device_create_file(&new_client->dev, &dev_attr_temp_input1);
device_create_file(&new_client->dev, &dev_attr_temp_max1);
device_create_file(&new_client->dev, &dev_attr_temp_hyst1);
device_create_file(&new_client->dev, &dev_attr_fan_input1);
device_create_file(&new_client->dev, &dev_attr_fan_min1);
device_create_file(&new_client->dev, &dev_attr_fan_div1);
......
drivers/i2c/chips/lm85.c
View file @ 659f7c1a
......@@ -48,9 +48,6 @@ static unsigned int normal_isa_range[] = { I2C_CLIENT_ISA_END };
/* Insmod parameters */
SENSORS_INSMOD_4(lm85b, lm85c, adm1027, adt7463);
/* Enable debug if true */
static int lm85debug = 0;
/* The LM85 registers */
#define LM85_REG_IN(nr) (0x20 + (nr))
......@@ -802,19 +799,15 @@ int lm85_detect(struct i2c_adapter *adapter, int address,
company = lm85_read_value(new_client, LM85_REG_COMPANY);
verstep = lm85_read_value(new_client, LM85_REG_VERSTEP);
if (lm85debug) {
printk("lm85: Detecting device at %d,0x%02x with"
dev_dbg(&adapter->dev, "Detecting device at %d,0x%02x with"
" COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
i2c_adapter_id(new_client->adapter), new_client->addr,
company, verstep);
}
/* If auto-detecting, Determine the chip type. */
if (kind <= 0) {
if (lm85debug) {
printk("lm85: Autodetecting device at %d,0x%02x ...\n",
dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x ...\n",
i2c_adapter_id(adapter), address );
}
if( company == LM85_COMPANY_NATIONAL
&& verstep == LM85_VERSTEP_LM85C ) {
kind = lm85c ;
......@@ -823,8 +816,8 @@ int lm85_detect(struct i2c_adapter *adapter, int address,
kind = lm85b ;
} else if( company == LM85_COMPANY_NATIONAL
&& (verstep & 0xf0) == LM85_VERSTEP_GENERIC ) {
printk("lm85: Unrecgonized version/stepping 0x%02x"
" Defaulting to LM85.\n", verstep );
dev_err(&adapter->dev, "Unrecgonized version/stepping 0x%02x"
" Defaulting to LM85.\n", verstep);
kind = any_chip ;
} else if( company == LM85_COMPANY_ANALOG_DEV
&& verstep == LM85_VERSTEP_ADM1027 ) {
......@@ -834,21 +827,19 @@ int lm85_detect(struct i2c_adapter *adapter, int address,
kind = adt7463 ;
} else if( company == LM85_COMPANY_ANALOG_DEV
&& (verstep & 0xf0) == LM85_VERSTEP_GENERIC ) {
printk("lm85: Unrecgonized version/stepping 0x%02x"
" Defaulting to ADM1027.\n", verstep );
dev_err(&adapter->dev, "Unrecgonized version/stepping 0x%02x"
" Defaulting to ADM1027.\n", verstep);
kind = adm1027 ;
} else if( kind == 0 && (verstep & 0xf0) == 0x60) {
printk("lm85: Generic LM85 Version 6 detected\n");
dev_err(&adapter->dev, "Generic LM85 Version 6 detected\n");
/* Leave kind as "any_chip" */
} else {
if (lm85debug) {
printk("lm85: Autodetection failed\n");
}
dev_dbg(&adapter->dev, "Autodetection failed\n");
/* Not an LM85 ... */
if( kind == 0 ) { /* User used force=x,y */
printk("lm85: Generic LM85 Version 6 not"
" found at %d,0x%02x. Try force_lm85c.\n",
i2c_adapter_id(adapter), address );
dev_err(&adapter->dev, "Generic LM85 Version 6 not"
" found at %d,0x%02x. Try force_lm85c.\n",
i2c_adapter_id(adapter), address );
}
err = 0 ;
goto ERROR1;
......@@ -879,12 +870,10 @@ int lm85_detect(struct i2c_adapter *adapter, int address,
data->valid = 0;
init_MUTEX(&data->update_lock);
if (lm85debug) {
printk("lm85: Assigning ID %d to %s at %d,0x%02x\n",
dev_dbg(&adapter->dev, "Assigning ID %d to %s at %d,0x%02x\n",
new_client->id, new_client->name,
i2c_adapter_id(new_client->adapter),
new_client->addr);
}
/* Tell the I2C layer a new client has arrived */
if ((err = i2c_attach_client(new_client)))
......@@ -1021,31 +1010,24 @@ void lm85_init_client(struct i2c_client *client)
int value;
struct lm85_data *data = i2c_get_clientdata(client);
if (lm85debug) {
printk("lm85(%d): Initializing device\n", client->id);
}
dev_dbg(&client->dev, "Initializing device\n");
/* Warn if part was not "READY" */
value = lm85_read_value(client, LM85_REG_CONFIG);
if (lm85debug) {
printk("lm85(%d): LM85_REG_CONFIG is: 0x%02x\n", client->id, value );
}
dev_dbg(&client->dev, "LM85_REG_CONFIG is: 0x%02x\n", value);
if( value & 0x02 ) {
printk("lm85(%d): Client (%d,0x%02x) config is locked.\n",
client->id,
dev_err(&client->dev, "Client (%d,0x%02x) config is locked.\n",
i2c_adapter_id(client->adapter), client->addr );
};
if( ! (value & 0x04) ) {
printk("lm85(%d): Client (%d,0x%02x) is not ready.\n",
client->id,
dev_err(&client->dev, "Client (%d,0x%02x) is not ready.\n",
i2c_adapter_id(client->adapter), client->addr );
};
if( value & 0x10
&& ( data->type == adm1027
|| data->type == adt7463 ) ) {
printk("lm85(%d): Client (%d,0x%02x) VxI mode is set. "
dev_err(&client->dev, "Client (%d,0x%02x) VxI mode is set. "
"Please report this to the lm85 maintainer.\n",
client->id,
i2c_adapter_id(client->adapter), client->addr );
};
......@@ -1061,11 +1043,8 @@ void lm85_init_client(struct i2c_client *client)
value = lm85_read_value(client, LM85_REG_CONFIG);
/* Try to clear LOCK, Set START, save everything else */
value = (value & ~ 0x02) | 0x01 ;
if (lm85debug) {
printk("lm85(%d): Setting CONFIG to: 0x%02x\n", client->id, value );
}
dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value);
lm85_write_value(client, LM85_REG_CONFIG, value);
}
void lm85_update_client(struct i2c_client *client)
......@@ -1078,10 +1057,8 @@ void lm85_update_client(struct i2c_client *client)
if ( !data->valid ||
(jiffies - data->last_reading > LM85_DATA_INTERVAL ) ) {
/* Things that change quickly */
if (lm85debug) {
printk("lm85(%d): Reading sensor values\n", client->id);
}
dev_dbg(&client->dev, "Reading sensor values\n");
/* Have to read extended bits first to "freeze" the
* more significant bits that are read later.
*/
......@@ -1125,10 +1102,8 @@ void lm85_update_client(struct i2c_client *client)
if ( !data->valid ||
(jiffies - data->last_config > LM85_CONFIG_INTERVAL) ) {
/* Things that don't change often */
dev_dbg(&client->dev, "Reading config values\n");
if (lm85debug) {
printk("lm85(%d): Reading config values\n", client->id);
}
for (i = 0; i <= 4; ++i) {
data->in_min[i] =
lm85_read_value(client, LM85_REG_IN_MIN(i));
......@@ -1234,8 +1209,6 @@ static void __exit sm_lm85_exit(void)
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, Margit Schubert-While <margitsw@t-online.de>");
MODULE_DESCRIPTION("LM85-B, LM85-C driver");
MODULE_PARM(lm85debug, "i");
MODULE_PARM_DESC(lm85debug, "Enable debugging statements");
module_init(sm_lm85_init);
module_exit(sm_lm85_exit);
drivers/usb/Kconfig
View file @ 659f7c1a
......@@ -7,7 +7,7 @@ menu "USB support"
# ARM SA1111 chips have a non-PCI based "OHCI-compatible" USB host interface.
config USB
tristate "Support for USB"
depends on PCI || SA1111
depends on PCI || SA1111 || ARCH_OMAP1510 || ARCH_OMAP1610
---help---
Universal Serial Bus (USB) is a specification for a serial bus
subsystem which offers higher speeds and more features than the
......
drivers/usb/core/hub.c
View file @ 659f7c1a
......@@ -31,6 +31,7 @@
#include <asm/uaccess.h>
#include <asm/byteorder.h>
#include "usb.h"
#include "hcd.h"
#include "hub.h"
......@@ -1316,8 +1317,8 @@ int usb_physical_reset_device(struct usb_device *dev)
kfree(descriptor);
usb_destroy_configuration(dev);
ret = usb_get_device_descriptor(dev);
if (ret < sizeof(dev->descriptor)) {
ret = usb_get_device_descriptor(dev, sizeof(dev->descriptor));
if (ret != sizeof(dev->descriptor)) {
if (ret < 0)
err("unable to get device %s descriptor "
"(error=%d)", dev->devpath, ret);
......
drivers/usb/core/message.c
View file @ 659f7c1a
......@@ -546,10 +546,10 @@ void usb_sg_cancel (struct usb_sg_request *io)
*
* Gets a USB descriptor. Convenience functions exist to simplify
* getting some types of descriptors. Use
* usb_get_device_descriptor() for USB_DT_DEVICE,
* usb_get_device_descriptor() for USB_DT_DEVICE (not exported),
* and usb_get_string() or usb_string() for USB_DT_STRING.
* Configuration descriptors (USB_DT_CONFIG) are part of the device
* structure, at least for the current configuration.
* Device (USB_DT_DEVICE) and configuration descriptors (USB_DT_CONFIG)
* are part of the device structure.
* In addition to a number of USB-standard descriptors, some
* devices also use class-specific or vendor-specific descriptors.
*
......@@ -610,6 +610,7 @@ int usb_get_string(struct usb_device *dev, unsigned short langid, unsigned char
/**
* usb_get_device_descriptor - (re)reads the device descriptor
* @dev: the device whose device descriptor is being updated
* @size: how much of the descriptor to read
* Context: !in_interrupt ()
*
* Updates the copy of the device descriptor stored in the device structure,
......@@ -618,24 +619,35 @@ int usb_get_string(struct usb_device *dev, unsigned short langid, unsigned char
* vendors product and version fields (idVendor, idProduct, and bcdDevice).
* That lets device drivers compare against non-byteswapped constants.
*
* There's normally no need to use this call, although some devices
* will change their descriptors after events like updating firmware.
* Not exported, only for use by the core. If drivers really want to read
* the device descriptor directly, they can call usb_get_descriptor() with
* type = USB_DT_DEVICE and index = 0.
*
* This call is synchronous, and may not be used in an interrupt context.
*
* Returns the number of bytes received on success, or else the status code
* returned by the underlying usb_control_msg() call.
*/
int usb_get_device_descriptor(struct usb_device *dev)
int usb_get_device_descriptor(struct usb_device *dev, unsigned int size)
{
int ret = usb_get_descriptor(dev, USB_DT_DEVICE, 0, &dev->descriptor,
sizeof(dev->descriptor));
struct usb_device_descriptor *desc;
int ret;
if (size > sizeof(*desc))
return -EINVAL;
desc = kmalloc(sizeof(*desc), GFP_NOIO);
if (!desc)
return -ENOMEM;
ret = usb_get_descriptor(dev, USB_DT_DEVICE, 0, desc, size);
if (ret >= 0) {
le16_to_cpus(&dev->descriptor.bcdUSB);
le16_to_cpus(&dev->descriptor.idVendor);
le16_to_cpus(&dev->descriptor.idProduct);
le16_to_cpus(&dev->descriptor.bcdDevice);
le16_to_cpus(&desc->bcdUSB);
le16_to_cpus(&desc->idVendor);
le16_to_cpus(&desc->idProduct);
le16_to_cpus(&desc->bcdDevice);
memcpy(&dev->descriptor, desc, size);
}
kfree(desc);
return ret;
}
......@@ -1241,7 +1253,6 @@ EXPORT_SYMBOL(usb_sg_wait);
// synchronous control message convenience routines
EXPORT_SYMBOL(usb_get_descriptor);
EXPORT_SYMBOL(usb_get_device_descriptor);
EXPORT_SYMBOL(usb_get_status);
EXPORT_SYMBOL(usb_get_string);
EXPORT_SYMBOL(usb_string);
......
drivers/usb/core/usb.c
View file @ 659f7c1a
......@@ -206,12 +206,15 @@ void usb_deregister(struct usb_driver *driver)
*/
struct usb_interface *usb_ifnum_to_if(struct usb_device *dev, unsigned ifnum)
{
struct usb_host_config *config = dev->actconfig;
int i;
for (i = 0; i < dev->actconfig->desc.bNumInterfaces; i++)
if (dev->actconfig->interface[i]->altsetting[0]
if (!config)
return NULL;
for (i = 0; i < config->desc.bNumInterfaces; i++)
if (config->interface[i]->altsetting[0]
.desc.bInterfaceNumber == ifnum)
return dev->actconfig->interface[i];
return config->interface[i];
return NULL;
}
......@@ -233,14 +236,17 @@ struct usb_interface *usb_ifnum_to_if(struct usb_device *dev, unsigned ifnum)
struct usb_endpoint_descriptor *
usb_epnum_to_ep_desc(struct usb_device *dev, unsigned epnum)
{
struct usb_host_config *config = dev->actconfig;
int i, k;
for (i = 0; i < dev->actconfig->desc.bNumInterfaces; i++) {
if (!config)
return NULL;
for (i = 0; i < config->desc.bNumInterfaces; i++) {
struct usb_interface *intf;
struct usb_host_interface *alt;
/* only endpoints in current altseting are active */
intf = dev->actconfig->interface[i];
/* only endpoints in current altsetting are active */
intf = config->interface[i];
alt = intf->altsetting + intf->act_altsetting;
for (k = 0; k < alt->desc.bNumEndpoints; k++)
......@@ -1059,7 +1065,7 @@ int usb_new_device(struct usb_device *dev, struct device *parent)
wait_ms(10); /* Let the SET_ADDRESS settle */
/* high and low speed devices don't need this... */
err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, &dev->descriptor, 8);
err = usb_get_device_descriptor(dev, 8);
if (err >= 8)
break;
wait_ms(100);
......@@ -1079,8 +1085,8 @@ int usb_new_device(struct usb_device *dev, struct device *parent)
/* USB device state == addressed ... still not usable */
err = usb_get_device_descriptor(dev);
if (err < (signed)sizeof(dev->descriptor)) {
err = usb_get_device_descriptor(dev, sizeof(dev->descriptor));
if (err != (signed)sizeof(dev->descriptor)) {
dev_err(&dev->dev, "device descriptor read/all, error %d\n", err);
goto fail;
}
......
drivers/usb/core/usb.h
View file @ 659f7c1a
......@@ -14,3 +14,6 @@ extern void usb_enable_endpoint (struct usb_device *dev,
struct usb_endpoint_descriptor *epd);
extern void usb_enable_interface (struct usb_device *dev,
struct usb_interface *intf);
extern int usb_get_device_descriptor(struct usb_device *dev,
unsigned int size);
drivers/usb/gadget/Kconfig
View file @ 659f7c1a
......@@ -3,12 +3,10 @@
# (a) a peripheral controller, and
# (b) the gadget driver using it.
#
# for 2.5 kbuild, drivers/usb/gadget/Kconfig
# source this at the end of drivers/usb/Kconfig
#
menuconfig USB_GADGET
menu "USB Gadget Support"
config USB_GADGET
tristate "Support for USB Gadgets"
depends on EXPERIMENTAL
help
USB is a master/slave protocol, organized with one master
host (such as a PC) controlling up to 127 peripheral devices.
......@@ -36,12 +34,15 @@ menuconfig USB_GADGET
# USB Peripheral Controller Support
#
choice
prompt "USB Peripheral Controller Support"
prompt "USB Peripheral Controller"
depends on USB_GADGET
help
A USB device uses a controller to talk to its host.
Systems should have only one such upstream link.
config USB_NET2280
tristate "NetChip 2280 USB Peripheral Controller"
depends on PCI && USB_GADGET
config USB_GADGET_NET2280
boolean "NetChip 2280"
depends on PCI
help
NetChip 2280 is a PCI based USB peripheral controller which
supports both full and high speed USB 2.0 data transfers.
......@@ -54,21 +55,91 @@ config USB_NET2280
dynamically linked module called "net2280" and force all
gadget drivers to also be dynamically linked.
config USB_NET2280
tristate
depends on USB_GADGET_NET2280
default USB_GADGET
config USB_GADGET_PXA2XX
boolean "PXA 2xx or IXP 42x"
depends on ARCH_PXA || ARCH_IXP425
help
Intel's PXA 2xx series XScale ARM-5TE processors include
an integrated full speed USB 1.1 device controller. The
controller in the IXP 4xx series is register-compatible.
It has fifteen fixed-function endpoints, as well as endpoint
zero (for control transfers).
Say "y" to link the driver statically, or "m" to build a
dynamically linked module called "pxa2xx_udc" and force all
gadget drivers to also be dynamically linked.
config USB_PXA2XX
tristate
depends on USB_GADGET_PXA2XX
default USB_GADGET
# if there's only one gadget driver, using only two bulk endpoints,
# don't waste memory for the other endpoints
config USB_PXA2XX_SMALL
depends on USB_GADGET_PXA2XX
bool
default y if USB_ZERO
default y if USB_ETH
default y if USB_G_SERIAL
config USB_GADGET_GOKU
boolean "Toshiba TC86C001 'Goku-S'"
depends on PCI
help
The Toshiba TC86C001 is a PCI device which includes controllers
for full speed USB devices, IDE, I2C, SIO, plus a USB host (OHCI).
The device controller has three configurable (bulk or interrupt)
endpoints, plus endpoint zero (for control transfers).
Say "y" to link the driver statically, or "m" to build a
dynamically linked module called "goku_udc" and to force all
gadget drivers to also be dynamically linked.
config USB_GOKU
tristate
depends on USB_GADGET_GOKU
default USB_GADGET
# this could be built elsewhere (doesn't yet exist)
config USB_GADGET_SA1100
boolean "SA 1100"
depends on ARCH_SA1100
help
Intel's SA-1100 is an ARM-4 processor with an integrated
full speed USB 1.1 device controller.
It has two fixed-function endpoints, as well as endpoint
zero (for control transfers).
config USB_SA1100
tristate
depends on USB_GADGET_SA1100
default USB_GADGET
endchoice
#
# USB Gadget Drivers
#
choice
prompt "USB Gadget Drivers"
tristate "USB Gadget Drivers"
depends on USB_GADGET
default USB_ETH
# FIXME want a cleaner dependency/config approach for drivers.
# this first set of drivers all depend on bulk-capable hardware.
config USB_ZERO
tristate "Gadget Zero (DEVELOPMENT)"
depends on USB_GADGET && (USB_DUMMY_HCD || USB_NET2280 || USB_PXA2XX || USB_SA1100)
depends on EXPERIMENTAL
help
Gadget Zero is a two-configuration device. It either sinks and
sources bulk data; or it loops back a configurable number of
......@@ -91,26 +162,9 @@ config USB_ZERO
Say "y" to link the driver statically, or "m" to build a
dynamically linked module called "g_zero".
config USB_ZERO_NET2280
bool
# for now, treat the "dummy" hcd as if it were a net2280
depends on USB_ZERO && (USB_NET2280 || USB_DUMMY_HCD)
default y
config USB_ZERO_PXA2XX
bool
depends on USB_ZERO && USB_PXA2XX
default y
config USB_ZERO_SA1100
bool
depends on USB_ZERO && USB_SA1100
default y
config USB_ETH
tristate "Ethernet Gadget"
depends on USB_GADGET && NET && (USB_DUMMY_HCD || USB_NET2280 || USB_PXA2XX || USB_SA1100)
depends on NET
help
This driver implements Ethernet style communication, in either
of two ways:
......@@ -136,26 +190,9 @@ config USB_ETH
Say "y" to link the driver statically, or "m" to build a
dynamically linked module called "g_ether".
config USB_ETH_NET2280
bool
# for now, treat the "dummy" hcd as if it were a net2280
depends on USB_ETH && (USB_NET2280 || USB_DUMMY_HCD)
default y
config USB_ETH_PXA2XX
bool
depends on USB_ETH && USB_PXA2XX
default y
config USB_ETH_SA1100
bool
depends on USB_ETH && USB_SA1100
default y
config USB_GADGETFS
tristate "Gadget Filesystem (EXPERIMENTAL)"
depends on USB_GADGET && (USB_DUMMY_HCD || USB_NET2280 || USB_PXA2XX) && EXPERIMENTAL
depends on EXPERIMENTAL
help
This driver provides a filesystem based API that lets user mode
programs implement a single-configuration USB device, including
......@@ -166,38 +203,44 @@ config USB_GADGETFS
Say "y" to link the driver statically, or "m" to build a
dynamically linked module called "gadgetfs".
config USB_GADGETFS_NET2280
bool
# for now, treat the "dummy" hcd as if it were a net2280
depends on USB_GADGETFS && (USB_NET2280 || USB_DUMMY_HCD)
default y
config USB_FILE_STORAGE
tristate "File-backed Storage Gadget (DEVELOPMENT)"
# we don't support the SA1100 because of its limitations
depends on USB_GADGET_SA1100 = n
help
The File-backed Storage Gadget acts as a USB Mass Storage
disk drive. As its storage repository it can use a regular
file or a block device (in much the same way as the "loop"
device driver), specified as a module parameter.
config USB_GADGETFS_PXA2XX
bool
depends on USB_GADGETFS && USB_PXA2XX
default y
Say "y" to link the driver statically, or "m" to build a
dynamically linked module called "g_file_storage".
config USB_FILE_STORAGE_TEST
bool "File-backed Storage Gadget test version"
depends on USB_FILE_STORAGE
default n
help
Say "y" to generate the larger testing version of the
File-backed Storage Gadget, useful for probing the
behavior of USB Mass Storage hosts. Not needed for
normal operation.
config USB_G_SERIAL
tristate "serial Gadget"
depends on USB_GADGET && (USB_DUMMY_HCD || USB_NET2280 || USB_PXA2XX || USB_SA1100)
tristate "Serial Gadget"
help
The Serial Gadget talks to the Linux-USB generic serial driver.
config USB_G_SERIAL_NET2280
bool
# for now, treat the "dummy" hcd as if it were a net2280
depends on USB_G_SERIAL && (USB_NET2280 || USB_DUMMY_HCD)
default y
Say "y" to link the driver statically, or "m" to build a
dynamically linked module called "g_serial".
config USB_G_SERIAL_PXA2XX
bool
depends on USB_G_SERIAL && USB_PXA2XX
default y
config USB_G_SERIAL_SA1100
bool
depends on USB_G_SERIAL && USB_SA1100
default y
# put drivers that need isochronous transfer support (for audio
# or video class gadget drivers), or specific hardware, here.
# - none yet
endchoice
# endmenuconfig
endmenu
drivers/usb/gadget/Makefile
View file @ 659f7c1a
......@@ -2,6 +2,8 @@
# USB peripheral controller drivers
#
obj-$(CONFIG_USB_NET2280) += net2280.o
obj-$(CONFIG_USB_PXA2XX) += pxa2xx_udc.o
obj-$(CONFIG_USB_GOKU) += goku_udc.o
#
# USB gadget drivers
......@@ -10,8 +12,11 @@ g_zero-objs := zero.o usbstring.o
g_ether-objs := ether.o usbstring.o
g_serial-objs := serial.o usbstring.o
gadgetfs-objs := inode.o usbstring.o
g_file_storage-objs := file_storage.o usbstring.o
obj-$(CONFIG_USB_ZERO) += g_zero.o
obj-$(CONFIG_USB_ETH) += g_ether.o
obj-$(CONFIG_USB_GADGETFS) += gadgetfs.o
obj-$(CONFIG_USB_FILE_STORAGE) += g_file_storage.o
obj-$(CONFIG_USB_G_SERIAL) += g_serial.o
drivers/usb/gadget/ether.c
View file @ 659f7c1a
......@@ -122,12 +122,9 @@ struct eth_dev {
*
* CHIP ... hardware identifier
* DRIVER_VERSION_NUM ... alerts the host side driver to differences
* EP0_MAXPACKET ... controls packetization of control requests
* EP_*_NAME ... which endpoints do we use for which purpose?
* EP_*_NUM ... numbers for them (often limited by hardware)
* HIGHSPEED ... define if ep0 and descriptors need high speed support
* MAX_USB_POWER ... define if we use other than 100 mA bus current
* SELFPOWER ... unless we can run on bus power, USB_CONFIG_ATT_SELFPOWER
* WAKEUP ... if hardware supports remote wakeup AND we will issue the
* usb_gadget_wakeup() call to initiate it, USB_CONFIG_ATT_WAKEUP
*
......@@ -143,6 +140,9 @@ struct eth_dev {
/* #undef on hardware that can't implement CDC */
#define DEV_CONFIG_CDC
/* undef on bus-powered hardware, and #define MAX_USB_POWER */
#define SELFPOWER
/*
* NetChip 2280, PCI based.
*
......@@ -152,11 +152,10 @@ struct eth_dev {
* performance note: only PIO needs per-usb-packet IRQs (ep0, ep-e, ep-f)
* otherwise IRQs are per-Ethernet-packet unless TX_DELAY and chaining help.
*/
#ifdef CONFIG_USB_ETH_NET2280
#ifdef CONFIG_USB_GADGET_NET2280
#define CHIP "net2280"
#define DEFAULT_QLEN 4 /* has dma chaining */
#define DRIVER_VERSION_NUM 0x0101
#define EP0_MAXPACKET 64
static const char EP_OUT_NAME [] = "ep-a";
#define EP_OUT_NUM 1
static const char EP_IN_NAME [] = "ep-b";
......@@ -164,8 +163,6 @@ static const char EP_IN_NAME [] = "ep-b";
static const char EP_STATUS_NAME [] = "ep-f";
#define EP_STATUS_NUM 3
#define HIGHSPEED
/* specific hardware configs could be bus-powered */
#define SELFPOWER USB_CONFIG_ATT_SELFPOWER
/* supports remote wakeup, but this driver doesn't */
extern int net2280_set_fifo_mode (struct usb_gadget *gadget, int mode);
......@@ -186,17 +183,14 @@ static inline void hw_optimize (struct usb_gadget *gadget)
* multiple interfaces (or altsettings) aren't usable. so this hardware
* can't implement CDC, which needs both capabilities.
*/
#ifdef CONFIG_USB_ETH_PXA2XX
#ifdef CONFIG_USB_GADGET_PXA2XX
#undef DEV_CONFIG_CDC
#define CHIP "pxa2xx"
#define DRIVER_VERSION_NUM 0x0103
#define EP0_MAXPACKET 16
static const char EP_OUT_NAME [] = "ep2out-bulk";
#define EP_OUT_NUM 2
static const char EP_IN_NAME [] = "ep1in-bulk";
#define EP_IN_NUM 1
/* doesn't support bus-powered operation */
#define SELFPOWER USB_CONFIG_ATT_SELFPOWER
/* supports remote wakeup, but this driver doesn't */
/* no hw optimizations to apply */
......@@ -209,17 +203,14 @@ static const char EP_IN_NAME [] = "ep1in-bulk";
* can't have a notification endpoint, since there are only the two
* bulk-capable ones. the CDC spec allows that.
*/
#ifdef CONFIG_USB_ETH_SA1100
#ifdef CONFIG_USB_GADGET_SA1100
#define CHIP "sa1100"
#define DRIVER_VERSION_NUM 0x0105
#define EP0_MAXPACKET 8
static const char EP_OUT_NAME [] = "ep1out-bulk";
#define EP_OUT_NUM 1
static const char EP_IN_NAME [] = "ep2in-bulk";
#define EP_IN_NUM 2
// EP_STATUS_NUM is undefined
/* doesn't support bus-powered operation */
#define SELFPOWER USB_CONFIG_ATT_SELFPOWER
/* doesn't support remote wakeup? */
/* no hw optimizations to apply */
......@@ -231,25 +222,43 @@ static const char EP_IN_NAME [] = "ep2in-bulk";
*
* This has three semi-configurable full speed bulk/interrupt endpoints.
*/
#ifdef CONFIG_USB_ETH_GOKU
#ifdef CONFIG_USB_GADGET_GOKU
#define CHIP "goku"
#define DRIVER_VERSION_NUM 0x0106
#define EP0_MAXPACKET 8
static const char EP_OUT_NAME [] = "ep1-bulk";
#define EP_OUT_NUM 1
static const char EP_IN_NAME [] = "ep2-bulk";
#define EP_IN_NUM 2
static const char EP_STATUS_NAME [] = "ep3-bulk";
#define EP_STATUS_NUM 3
#define SELFPOWER USB_CONFIG_ATT_SELFPOWER
/* doesn't support remote wakeup */
#define hw_optimize(g) do {} while (0)
#endif
/*
* SuperH UDC: UDC built-in to some Renesas SH processors.
*
* This has three semi-configurable full speed bulk/interrupt endpoints.
*
* Only one configuration and interface is supported. So this hardware
* can't implement CDC.
*/
#ifdef CONFIG_USB_GADGET_SUPERH
#undef DEV_CONFIG_CDC
#define CHIP "superh"
#define DRIVER_VERSION_NUM 0x0107
static const char EP_OUT_NAME[] = "ep1out-bulk";
#define EP_OUT_NUM 1
static const char EP_IN_NAME[] = "ep2in-bulk";
#define EP_IN_NUM 2
#define hw_optimize(g) do {} while (0)
#endif
/*-------------------------------------------------------------------------*/
#ifndef EP0_MAXPACKET
#ifndef CHIP
# error Configure some USB peripheral controller driver!
#endif
......@@ -280,19 +289,15 @@ static const char EP_STATUS_NAME [] = "ep3-bulk";
* hardware that supports remote wakeup defaults to disabling it.
*/
#ifndef SELFPOWER
/* default: say we rely on bus power */
#define SELFPOWER 0
/* else:
* - SELFPOWER value must be USB_CONFIG_ATT_SELFPOWER
* - MAX_USB_POWER may be nonzero.
*/
#endif
#ifndef MAX_USB_POWER
/* any hub supports this steady state bus power consumption */
#define MAX_USB_POWER 100 /* mA */
#ifdef SELFPOWER
/* some hosts are confused by 0mA */
#define MAX_USB_POWER 2 /* mA */
#else
/* bus powered */
#error Define your bus power consumption!
#endif
#endif /* MAX_USB_POWER */
#ifndef WAKEUP
/* default: this driver won't do remote wakeup */
......@@ -376,7 +381,7 @@ module_param (qmult, uint, S_IRUGO|S_IWUSR);
/*
* This device advertises one configuration.
*/
static const struct usb_device_descriptor
static struct usb_device_descriptor
device_desc = {
.bLength = sizeof device_desc,
.bDescriptorType = USB_DT_DEVICE,
......@@ -386,7 +391,6 @@ device_desc = {
.bDeviceClass = DEV_CONFIG_CLASS,
.bDeviceSubClass = 0,
.bDeviceProtocol = 0,
.bMaxPacketSize0 = EP0_MAXPACKET,
.idVendor = __constant_cpu_to_le16 (DRIVER_VENDOR_NUM),
.idProduct = __constant_cpu_to_le16 (DRIVER_PRODUCT_NUM),
......@@ -396,7 +400,7 @@ device_desc = {
.bNumConfigurations = 1,
};
static const struct usb_config_descriptor
static struct usb_config_descriptor
eth_config = {
.bLength = sizeof eth_config,
.bDescriptorType = USB_DT_CONFIG,
......@@ -409,7 +413,7 @@ eth_config = {
#endif
.bConfigurationValue = DEV_CONFIG_VALUE,
.iConfiguration = STRING_PRODUCT,
.bmAttributes = USB_CONFIG_ATT_ONE | SELFPOWER | WAKEUP,
.bmAttributes = USB_CONFIG_ATT_ONE | WAKEUP,
.bMaxPower = (MAX_USB_POWER + 1) / 2,
};
......@@ -645,7 +649,7 @@ hs_sink_desc = {
.bInterval = 1,
};
static const struct usb_qualifier_descriptor
static struct usb_qualifier_descriptor
dev_qualifier = {
.bLength = sizeof dev_qualifier,
.bDescriptorType = USB_DT_DEVICE_QUALIFIER,
......@@ -653,12 +657,10 @@ dev_qualifier = {
.bcdUSB = __constant_cpu_to_le16 (0x0200),
.bDeviceClass = DEV_CONFIG_CLASS,
/* assumes ep0 uses the same value for both speeds ... */
.bMaxPacketSize0 = EP0_MAXPACKET,
.bNumConfigurations = 1,
};
/* maxpacket and other transfer characteristics vary by speed. */
#define ep_desc(g,hs,fs) (((g)->speed==USB_SPEED_HIGH)?(hs):(fs))
......@@ -959,7 +961,7 @@ eth_set_config (struct eth_dev *dev, unsigned number, int gfp_flags)
if (number == dev->config)
return 0;
#ifdef CONFIG_USB_ETH_SA1100
#ifdef CONFIG_USB_GADGET_SA1100
if (dev->config && atomic_read (&dev->tx_qlen) != 0) {
/* tx fifo is full, but we can't clear it...*/
INFO (dev, "can't change configurations\n");
......@@ -1006,6 +1008,7 @@ eth_set_config (struct eth_dev *dev, unsigned number, int gfp_flags)
/* section 3.8.2 table 11 of the CDC spec lists Ethernet notifications */
#define CDC_NOTIFY_NETWORK_CONNECTION 0x00 /* required; 6.3.1 */
#define CDC_NOTIFY_RESPONSE_AVAILABLE 0x01 /* optional; 6.3.2 */
#define CDC_NOTIFY_SPEED_CHANGE 0x2a /* required; 6.3.8 */
struct cdc_notification {
......@@ -1123,6 +1126,8 @@ static void eth_setup_complete (struct usb_ep *ep, struct usb_request *req)
/* see section 3.8.2 table 10 of the CDC spec for more ethernet
* requests, mostly for filters (multicast, pm) and statistics
*/
#define CDC_SEND_ENCAPSULATED_REQUEST 0x00 /* optional */
#define CDC_GET_ENCAPSULATED_RESPONSE 0x01 /* optional */
#define CDC_SET_ETHERNET_PACKET_FILTER 0x43 /* required */
/*
......@@ -1188,7 +1193,7 @@ eth_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
value = eth_set_config (dev, ctrl->wValue, GFP_ATOMIC);
spin_unlock (&dev->lock);
break;
#ifdef CONFIG_USB_ETH_PXA2XX
#ifdef CONFIG_USB_GADGET_PXA2XX
/* PXA UDC prevents us from using SET_INTERFACE in normal ways.
* And it hides GET_CONFIGURATION and GET_INTERFACE too.
*/
......@@ -1638,7 +1643,7 @@ static int eth_start_xmit (struct sk_buff *skb, struct net_device *net)
req->context = skb;
req->complete = tx_complete;
#ifdef CONFIG_USB_ETH_SA1100
#ifdef CONFIG_USB_GADGET_SA1100
/* don't demand zlp (req->zero) support from all hardware */
if ((length % dev->in_ep->maxpacket) == 0)
length++;
......@@ -1770,6 +1775,17 @@ eth_bind (struct usb_gadget *gadget)
return -ENODEV;
#endif
device_desc.bMaxPacketSize0 = gadget->ep0->maxpacket;
#ifdef HIGHSPEED
/* assumes ep0 uses the same value for both speeds ... */
dev_qualifier.bMaxPacketSize0 = device_desc.bMaxPacketSize0;
#endif
#ifdef SELFPOWERED
eth_config.bmAttributes |= USB_CONFIG_ATT_SELFPOWERED;
usb_gadget_set_selfpowered (gadget);
#endif
net = alloc_etherdev (sizeof *dev);
if (!net)
return status;
......
drivers/usb/gadget/file_storage.c 0 → 100644
View file @ 659f7c1a
This source diff could not be displayed because it is too large. You can view the blob instead.
drivers/usb/gadget/inode.c
View file @ 659f7c1a
......@@ -232,18 +232,27 @@ static void put_ep (struct ep_data *data)
* the usb controller exposes.
*/
#ifdef CONFIG_USB_GADGETFS_NET2280
#ifdef CONFIG_USB_GADGET_DUMMY_HCD
/* act (mostly) like a net2280 */
#define CONFIG_USB_GADGET_NET2280
#endif
#ifdef CONFIG_USB_GADGET_NET2280
#define CHIP "net2280"
#define HIGHSPEED
#endif
#ifdef CONFIG_USB_GADGETFS_PXA2XX
#ifdef CONFIG_USB_GADGET_PXA2XX
#define CHIP "pxa2xx_udc"
/* earlier hardware doesn't have UDCCFR, races set_{config,interface} */
#warning works best with pxa255 or newer
#endif
#ifdef CONFIG_USB_GADGETFS_SA1100
#ifdef CONFIG_USB_GADGET_GOKU
#define CHIP "goku_udc"
#endif
#ifdef CONFIG_USB_GADGET_SA1100
#define CHIP "sa1100"
#endif
......@@ -397,7 +406,7 @@ ep_io (struct ep_data *epdata, void *buf, unsigned len)
/* handle a synchronous OUT bulk/intr/iso transfer */
static ssize_t
ep_read (struct file *fd, char *buf, size_t len, loff_t *ptr)
ep_read (struct file *fd, char __user *buf, size_t len, loff_t *ptr)
{
struct ep_data *data = fd->private_data;
void *kbuf;
......@@ -441,7 +450,7 @@ ep_read (struct file *fd, char *buf, size_t len, loff_t *ptr)
/* handle a synchronous IN bulk/intr/iso transfer */
static ssize_t
ep_write (struct file *fd, const char *buf, size_t len, loff_t *ptr)
ep_write (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
{
struct ep_data *data = fd->private_data;
void *kbuf;
......
drivers/usb/gadget/net2280.c
View file @ 659f7c1a
......@@ -25,9 +25,6 @@
* rev1 chips. Rev1a silicon (0110) fixes almost all of them.
*/
#define USE_DMA_CHAINING
/*
* Copyright (C) 2003 David Brownell
* Copyright (C) 2003 NetChip Technologies
......@@ -47,8 +44,8 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#define DEBUG 1
// #define VERBOSE /* extra debug messages (success too) */
#undef DEBUG /* messages on error and most fault paths */
#undef VERBOSE /* extra debug messages (success too) */
#include <linux/config.h>
#include <linux/module.h>
......@@ -77,7 +74,7 @@
#define DRIVER_DESC "NetChip 2280 USB Peripheral Controller"
#define DRIVER_VERSION "Bastille Day 2003"
#define DRIVER_VERSION "2004 Jan 14"
#define DMA_ADDR_INVALID (~(dma_addr_t)0)
#define EP_DONTUSE 13 /* nonzero */
......@@ -96,10 +93,21 @@ static const char *ep_name [] = {
"ep-e", "ep-f",
};
/* use_dma -- general goodness, fewer interrupts, less cpu load (vs PIO)
* use_dma_chaining -- dma descriptor queueing gives even more irq reduction
*
* The net2280 DMA engines are not tightly integrated with their FIFOs;
* not all cases are (yet) handled well in this driver or the silicon.
* Some gadget drivers work better with the dma support here than others.
* These two parameters let you use PIO or more aggressive DMA.
*/
static int use_dma = 1;
static int use_dma_chaining = 0;
/* "modprobe net2280 use_dma=n" etc */
module_param (use_dma, bool, S_IRUGO|S_IWUSR);
module_param (use_dma, bool, S_IRUGO);
module_param (use_dma_chaining, bool, S_IRUGO);
/* mode 0 == ep-{a,b,c,d} 1K fifo each
* mode 1 == ep-{a,b} 2K fifo each, ep-{c,d} unavailable
......@@ -110,6 +118,7 @@ static ushort fifo_mode = 0;
/* "modprobe net2280 fifo_mode=1" etc */
module_param (fifo_mode, ushort, 0644);
#define DIR_STRING(bAddress) (((bAddress) & USB_DIR_IN) ? "in" : "out")
#if defined(USE_SYSFS_DEBUG_FILES) || defined (DEBUG)
......@@ -162,6 +171,7 @@ net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
/* ep_reset() has already been called */
ep->stopped = 0;
ep->out_overflow = 0;
/* set speed-dependent max packet; may kick in high bandwidth */
set_idx_reg (dev->regs, REG_EP_MAXPKT (dev, ep->num), max);
......@@ -169,8 +179,8 @@ net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
/* FIFO lines can't go to different packets. PIO is ok, so
* use it instead of troublesome (non-bulk) multi-packet DMA.
*/
if (ep->is_in && ep->dma && (max % 4) != 0) {
DEBUG (ep->dev, "%s, no IN dma for maxpacket %d\n",
if (ep->dma && (max % 4) != 0 && use_dma_chaining) {
DEBUG (ep->dev, "%s, no dma for maxpacket %d\n",
ep->ep.name, ep->ep.maxpacket);
ep->dma = 0;
}
......@@ -179,17 +189,21 @@ net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
writel ((1 << FIFO_FLUSH), &ep->regs->ep_stat);
tmp = (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK);
if (tmp == USB_ENDPOINT_XFER_INT) {
/* not just because of erratum 0105; avoid ever
* kicking in the "toggle-irrelevant" mode.
*/
tmp = USB_ENDPOINT_XFER_BULK;
/* erratum 0105 workaround prevents hs NYET */
if (dev->chiprev == 0100
&& dev->gadget.speed == USB_SPEED_HIGH
&& !(desc->bEndpointAddress & USB_DIR_IN))
writel ((1 << CLEAR_NAK_OUT_PACKETS_MODE),
&ep->regs->ep_rsp);
} else if (tmp == USB_ENDPOINT_XFER_BULK) {
/* catch some particularly blatant driver bugs */
if ((dev->gadget.speed == USB_SPEED_HIGH
&& max != 512)
|| (dev->gadget.speed == USB_SPEED_FULL
&& max > 64))
&& max > 64)) {
spin_unlock_irqrestore (&dev->lock, flags);
return -ERANGE;
}
}
ep->is_iso = (tmp == USB_ENDPOINT_XFER_ISOC) ? 1 : 0;
tmp <<= ENDPOINT_TYPE;
......@@ -205,11 +219,6 @@ net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
writel (tmp, &ep->regs->ep_cfg);
#ifdef NET2280_DMA_OUT_WORKAROUND
if (!ep->is_in)
ep->dma = 0;
#endif
/* enable irqs */
if (!ep->dma) { /* pio, per-packet */
tmp = (1 << ep->num) | readl (&dev->regs->pciirqenb0);
......@@ -388,6 +397,7 @@ net2280_alloc_request (struct usb_ep *_ep, int gfp_flags)
}
td->dmacount = 0; /* not VALID */
td->dmaaddr = __constant_cpu_to_le32 (DMA_ADDR_INVALID);
td->dmadesc = td->dmaaddr;
req->td = td;
}
return &req->req;
......@@ -541,8 +551,11 @@ write_fifo (struct net2280_ep *ep, struct usb_request *req)
count -= 4;
}
/* last fifo entry is "short" unless we wrote a full packet */
if (total < ep->ep.maxpacket) {
/* last fifo entry is "short" unless we wrote a full packet.
* also explicitly validate last word in (periodic) transfers
* when maxpacket is not a multiple of 4 bytes.
*/
if (count || total < ep->ep.maxpacket) {
tmp = count ? get_unaligned ((u32 *)buf) : count;
cpu_to_le32s (&tmp);
set_fifo_bytecount (ep, count & 0x03);
......@@ -555,6 +568,9 @@ write_fifo (struct net2280_ep *ep, struct usb_request *req)
/* work around erratum 0106: PCI and USB race over the OUT fifo.
* caller guarantees chiprev 0100, out endpoint is NAKing, and
* there's no real data in the fifo.
*
* NOTE: also used in cases where that erratum doesn't apply:
* where the host wrote "too much" data to us.
*/
static void out_flush (struct net2280_ep *ep)
{
......@@ -599,13 +615,13 @@ read_fifo (struct net2280_ep *ep, struct net2280_request *req)
/* erratum 0106 ... packets coming in during fifo reads might
* be incompletely rejected. not all cases have workarounds.
*/
if (ep->dev->chiprev == 0x0100) {
if (ep->dev->chiprev == 0x0100
&& ep->dev->gadget.speed == USB_SPEED_FULL) {
udelay (1);
tmp = readl (&ep->regs->ep_stat);
if ((tmp & (1 << NAK_OUT_PACKETS)))
/* cleanup = 1 */;
else if ((tmp & (1 << FIFO_FULL))
/* don't break hs PING protocol ... */
|| ep->dev->gadget.speed == USB_SPEED_FULL) {
cleanup = 1;
else if ((tmp & (1 << FIFO_FULL))) {
start_out_naking (ep);
prevent = 1;
}
......@@ -617,6 +633,15 @@ read_fifo (struct net2280_ep *ep, struct net2280_request *req)
*/
prefetchw (buf);
count = readl (&regs->ep_avail);
if (unlikely (count == 0)) {
udelay (1);
tmp = readl (&ep->regs->ep_stat);
count = readl (&regs->ep_avail);
/* handled that data already? */
if (count == 0 && (tmp & (1 << NAK_OUT_PACKETS)) == 0)
return 0;
}
tmp = req->req.length - req->req.actual;
if (count > tmp) {
/* as with DMA, data overflow gets flushed */
......@@ -626,7 +651,10 @@ read_fifo (struct net2280_ep *ep, struct net2280_request *req)
ep->ep.name, count, tmp);
req->req.status = -EOVERFLOW;
cleanup = 1;
}
/* NAK_OUT_PACKETS will be set, so flushing is safe;
* the next read will start with the next packet
*/
} /* else it's a ZLP, no worries */
count = tmp;
}
req->req.actual += count;
......@@ -665,7 +693,7 @@ read_fifo (struct net2280_ep *ep, struct net2280_request *req)
}
/* fill out dma descriptor to match a given request */
static inline void
static void
fill_dma_desc (struct net2280_ep *ep, struct net2280_request *req, int valid)
{
struct net2280_dma *td = req->td;
......@@ -678,15 +706,13 @@ fill_dma_desc (struct net2280_ep *ep, struct net2280_request *req, int valid)
*/
if (ep->is_in)
dmacount |= (1 << DMA_DIRECTION);
else
else if ((dmacount % ep->ep.maxpacket) != 0)
dmacount |= (1 << END_OF_CHAIN);
req->valid = valid;
if (valid)
dmacount |= (1 << VALID_BIT);
#ifdef USE_DMA_CHAINING
if (!req->req.no_interrupt)
#endif
if (likely(!req->req.no_interrupt || !use_dma_chaining))
dmacount |= (1 << DMA_DONE_INTERRUPT_ENABLE);
/* td->dmadesc = previously set by caller */
......@@ -698,7 +724,8 @@ fill_dma_desc (struct net2280_ep *ep, struct net2280_request *req, int valid)
}
static const u32 dmactl_default =
(1 << DMA_CLEAR_COUNT_ENABLE)
(1 << DMA_SCATTER_GATHER_DONE_INTERRUPT)
| (1 << DMA_CLEAR_COUNT_ENABLE)
/* erratum 0116 workaround part 1 (use POLLING) */
| (POLL_100_USEC << DESCRIPTOR_POLLING_RATE)
| (1 << DMA_VALID_BIT_POLLING_ENABLE)
......@@ -714,18 +741,41 @@ static inline void spin_stop_dma (struct net2280_dma_regs *dma)
static inline void stop_dma (struct net2280_dma_regs *dma)
{
writel (dmactl_default & ~(1 << DMA_ENABLE), &dma->dmactl);
writel (readl (&dma->dmactl) & ~(1 << DMA_ENABLE), &dma->dmactl);
spin_stop_dma (dma);
}
static void start_queue (struct net2280_ep *ep, u32 dmactl, u32 td_dma)
{
struct net2280_dma_regs *dma = ep->dma;
writel ((1 << VALID_BIT) | (ep->is_in << DMA_DIRECTION),
&dma->dmacount);
writel (readl (&dma->dmastat), &dma->dmastat);
writel (td_dma, &dma->dmadesc);
writel (dmactl, &dma->dmactl);
/* erratum 0116 workaround part 3: pci arbiter away from net2280 */
(void) readl (&ep->dev->pci->pcimstctl);
writel ((1 << DMA_START), &dma->dmastat);
if (!ep->is_in)
stop_out_naking (ep);
}
static void start_dma (struct net2280_ep *ep, struct net2280_request *req)
{
u32 tmp;
int clear_nak = 0;
struct net2280_dma_regs *dma = ep->dma;
/* FIXME can't use DMA for ZLPs */
/* on this path we "know" there's no dma active (yet) */
WARN_ON (readl (&dma->dmactl) & (1 << DMA_ENABLE));
writel (0, &ep->dma->dmactl);
/* previous OUT packet might have been short */
if (!ep->is_in && ((tmp = readl (&ep->regs->ep_stat))
& (1 << NAK_OUT_PACKETS)) != 0) {
......@@ -733,9 +783,9 @@ static void start_dma (struct net2280_ep *ep, struct net2280_request *req)
&ep->regs->ep_stat);
tmp = readl (&ep->regs->ep_avail);
if (tmp == 0)
clear_nak = 1;
else {
if (tmp) {
writel (readl (&dma->dmastat), &dma->dmastat);
/* transfer all/some fifo data */
writel (req->req.dma, &dma->dmaaddr);
tmp = min (tmp, req->req.length);
......@@ -744,6 +794,8 @@ static void start_dma (struct net2280_ep *ep, struct net2280_request *req)
req->td->dmacount = cpu_to_le32 (req->req.length - tmp);
writel ((1 << DMA_DONE_INTERRUPT_ENABLE)
| tmp, &dma->dmacount);
req->td->dmadesc = 0;
req->valid = 1;
writel ((1 << DMA_ENABLE), &dma->dmactl);
writel ((1 << DMA_START), &dma->dmastat);
......@@ -751,8 +803,6 @@ static void start_dma (struct net2280_ep *ep, struct net2280_request *req)
}
}
/* on this path we know there's no dma queue (yet) */
WARN_ON (readl (&dma->dmactl) & (1 << DMA_ENABLE));
tmp = dmactl_default;
/* force packet boundaries between dma requests, but prevent the
......@@ -772,25 +822,10 @@ static void start_dma (struct net2280_ep *ep, struct net2280_request *req)
req->td->dmadesc = cpu_to_le32 (ep->td_dma);
fill_dma_desc (ep, req, 1);
#ifdef USE_DMA_CHAINING
writel ( (1 << VALID_BIT)
| (ep->is_in << DMA_DIRECTION)
| 0, &dma->dmacount);
#else
req->td->dmacount |= __constant_cpu_to_le32 (1 << END_OF_CHAIN);
#endif
writel (req->td_dma, &dma->dmadesc);
writel (tmp, &dma->dmactl);
if (!use_dma_chaining)
req->td->dmacount |= __constant_cpu_to_le32 (1 << END_OF_CHAIN);
/* erratum 0116 workaround part 3: pci arbiter away from net2280 */
(void) readl (&ep->dev->pci->pcimstctl);
writel ((1 << DMA_START), &dma->dmastat);
/* recover from previous short read; erratum 0112 workaround #1 */
if (clear_nak)
writel ((1 << CLEAR_NAK_OUT_PACKETS), &ep->regs->ep_rsp);
start_queue (ep, tmp, req->td_dma);
}
static inline void
......@@ -893,7 +928,6 @@ net2280_queue (struct usb_ep *_ep, struct usb_request *_req, int gfp_flags)
_req->status = -EINPROGRESS;
_req->actual = 0;
req->dma_done = 0;
/* kickstart this i/o queue? */
if (list_empty (&ep->queue) && !ep->stopped) {
......@@ -977,10 +1011,11 @@ dma_done (
)
{
req->req.actual = req->req.length - (DMA_BYTE_COUNT_MASK & dmacount);
rmb ();
done (ep, req, status);
}
static void restart_dma (struct net2280_ep *ep);
static void scan_dma_completions (struct net2280_ep *ep)
{
/* only look at descriptors that were "naturally" retired,
......@@ -1000,14 +1035,37 @@ static void scan_dma_completions (struct net2280_ep *ep)
break;
/* SHORT_PACKET_TRANSFERRED_INTERRUPT handles "usb-short"
* packets, including overruns, even when the transfer was
* exactly the length requested (dmacount now zero).
* FIXME there's an overrun case here too, where we expect
* a short packet but receive a max length one (won't NAK).
* cases where DMA must be aborted; this code handles
* all non-abort DMA completions.
*/
if (!ep->is_in && (req->req.length % ep->ep.maxpacket) != 0) {
req->dma_done = 1;
if (unlikely (req->td->dmadesc == 0)) {
/* paranoia */
tmp = readl (&ep->dma->dmacount);
if (tmp & DMA_BYTE_COUNT_MASK)
break;
/* single transfer mode */
dma_done (ep, req, tmp, 0);
break;
} else if (!ep->is_in
&& (req->req.length % ep->ep.maxpacket) != 0) {
tmp = readl (&ep->regs->ep_stat);
/* AVOID TROUBLE HERE by not issuing short reads from
* your gadget driver. That helps avoids errata 0121,
* 0122, and 0124; not all cases trigger the warning.
*/
if ((tmp & (1 << NAK_OUT_PACKETS)) == 0) {
WARN (ep->dev, "%s lost packet sync!\n",
ep->ep.name);
req->req.status = -EOVERFLOW;
} else if ((tmp = readl (&ep->regs->ep_avail)) != 0) {
/* fifo gets flushed later */
ep->out_overflow = 1;
DEBUG (ep->dev, "%s dma, discard %d len %d\n",
ep->ep.name, tmp,
req->req.length);
req->req.status = -EOVERFLOW;
}
}
dma_done (ep, req, tmp, 0);
}
......@@ -1016,41 +1074,50 @@ static void scan_dma_completions (struct net2280_ep *ep)
static void restart_dma (struct net2280_ep *ep)
{
struct net2280_request *req;
u32 dmactl = dmactl_default;
if (ep->stopped)
return;
req = list_entry (ep->queue.next, struct net2280_request, queue);
#ifdef USE_DMA_CHAINING
if (!use_dma_chaining) {
start_dma (ep, req);
return;
}
/* the 2280 will be processing the queue unless queue hiccups after
* the previous transfer:
* IN: wanted automagic zlp, head doesn't (or vice versa)
* DMA_FIFO_VALIDATE doesn't init from dma descriptors.
* OUT: was "usb-short", we must restart.
*/
if (!req->valid) {
if (ep->is_in && !req->valid) {
struct net2280_request *entry, *prev = 0;
int qmode, reqmode, done = 0;
int reqmode, done = 0;
DEBUG (ep->dev, "%s dma hiccup td %p\n", ep->ep.name, req->td);
qmode = likely (req->req.zero
ep->in_fifo_validate = likely (req->req.zero
|| (req->req.length % ep->ep.maxpacket) != 0);
if (ep->in_fifo_validate)
dmactl |= (1 << DMA_FIFO_VALIDATE);
list_for_each_entry (entry, &ep->queue, queue) {
u32 dmacount;
if (entry != req)
if (entry == req)
continue;
dmacount = entry->td->dmacount;
if (!done) {
reqmode = likely (entry->req.zero
|| (entry->req.length
% ep->ep.maxpacket) != 0);
if (reqmode == qmode) {
if (reqmode == ep->in_fifo_validate) {
entry->valid = 1;
dmacount |= valid_bit;
entry->td->dmacount = dmacount;
prev = entry;
continue;
} else {
/* force a hiccup */
prev->td->dmacount |= dma_done_ie;
done = 1;
}
......@@ -1062,22 +1129,21 @@ static void restart_dma (struct net2280_ep *ep)
entry->td->dmacount = dmacount;
prev = entry;
}
start_dma (ep, req);
} else if (!ep->is_in
&& (readl (&ep->regs->ep_stat)
& (1 << NAK_OUT_PACKETS)) != 0)
start_dma (ep, req);
#else
start_dma (ep, req);
#endif
}
writel (0, &ep->dma->dmactl);
start_queue (ep, dmactl, req->td_dma);
}
static inline void abort_dma (struct net2280_ep *ep)
static void abort_dma (struct net2280_ep *ep)
{
/* abort the current transfer */
writel ((1 << DMA_ABORT), &ep->dma->dmastat);
/* collect completed transfers (except the current one) */
if (likely (!list_empty (&ep->queue))) {
/* FIXME work around errata 0121, 0122, 0124 */
writel ((1 << DMA_ABORT), &ep->dma->dmastat);
spin_stop_dma (ep->dma);
} else
stop_dma (ep->dma);
scan_dma_completions (ep);
}
......@@ -1108,43 +1174,53 @@ static int net2280_dequeue (struct usb_ep *_ep, struct usb_request *_req)
int stopped;
ep = container_of (_ep, struct net2280_ep, ep);
req = container_of (_req, struct net2280_request, req);
if (!_ep || (!ep->desc && ep->num != 0) || !_req)
return -EINVAL;
spin_lock_irqsave (&ep->dev->lock, flags);
stopped = ep->stopped;
/* pause dma while we scan the queue */
/* quiesce dma while we patch the queue */
dmactl = 0;
ep->stopped = 1;
if (ep->dma) {
dmactl = readl (&ep->dma->dmactl);
writel (dmactl & ~(1 << DMA_ENABLE), &ep->dma->dmactl);
/* force synch, clean any completed requests */
spin_stop_dma (ep->dma);
/* WARNING erratum 0127 may kick in ... */
stop_dma (ep->dma);
scan_dma_completions (ep);
}
/* make sure it's still queued on this endpoint */
list_for_each_entry (req, &ep->queue, queue) {
if (&req->req == _req)
break;
}
if (&req->req != _req) {
spin_unlock_irqrestore (&ep->dev->lock, flags);
return -EINVAL;
}
/* queue head may be partially complete. */
if (ep->queue.next == &req->queue) {
if (ep->dma) {
DEBUG (ep->dev, "unlink (%s) dma\n", _ep->name);
_req->status = -ECONNRESET;
abort_dma (ep);
if (likely (ep->queue.next == &req->queue))
if (likely (ep->queue.next == &req->queue)) {
// NOTE: misreports single-transfer mode
req->td->dmacount = 0; /* invalidate */
dma_done (ep, req,
le32_to_cpup (&req->td->dmacount),
readl (&ep->dma->dmacount),
-ECONNRESET);
}
} else {
DEBUG (ep->dev, "unlink (%s) pio\n", _ep->name);
done (ep, req, -ECONNRESET);
}
req = 0;
#ifdef USE_DMA_CHAINING
/* patch up hardware chaining data */
} else if (ep->dma) {
} else if (ep->dma && use_dma_chaining) {
if (req->queue.prev == ep->queue.next) {
writel (le32_to_cpu (req->td->dmadesc),
&ep->dma->dmadesc);
......@@ -1161,7 +1237,6 @@ static int net2280_dequeue (struct usb_ep *_ep, struct usb_request *_req)
if (req->td->dmacount & dma_done_ie)
prev->td->dmacount |= dma_done_ie;
}
#endif
}
if (req)
......@@ -1188,10 +1263,14 @@ static int net2280_dequeue (struct usb_ep *_ep, struct usb_request *_req)
/*-------------------------------------------------------------------------*/
static int net2280_fifo_status (struct usb_ep *_ep);
static int
net2280_set_halt (struct usb_ep *_ep, int value)
{
struct net2280_ep *ep;
unsigned long flags;
int retval = 0;
ep = container_of (_ep, struct net2280_ep, ep);
if (!_ep || (!ep->desc && ep->num != 0))
......@@ -1202,19 +1281,27 @@ net2280_set_halt (struct usb_ep *_ep, int value)
== USB_ENDPOINT_XFER_ISOC)
return -EINVAL;
VDEBUG (ep->dev, "%s %s halt\n", _ep->name, value ? "set" : "clear");
/* set/clear, then synch memory views with the device */
if (value) {
if (ep->num == 0)
ep->dev->protocol_stall = 1;
else
set_halt (ep);
} else
clear_halt (ep);
(void) readl (&ep->regs->ep_rsp);
spin_lock_irqsave (&ep->dev->lock, flags);
if (!list_empty (&ep->queue))
retval = -EAGAIN;
else if (ep->is_in && value && net2280_fifo_status (_ep) != 0)
retval = -EAGAIN;
else {
VDEBUG (ep->dev, "%s %s halt\n", _ep->name,
value ? "set" : "clear");
/* set/clear, then synch memory views with the device */
if (value) {
if (ep->num == 0)
ep->dev->protocol_stall = 1;
else
set_halt (ep);
} else
clear_halt (ep);
(void) readl (&ep->regs->ep_rsp);
}
spin_unlock_irqrestore (&ep->dev->lock, flags);
return 0;
return retval;
}
static int
......@@ -1290,21 +1377,49 @@ static int net2280_get_frame (struct usb_gadget *_gadget)
static int net2280_wakeup (struct usb_gadget *_gadget)
{
struct net2280 *dev;
u32 tmp;
unsigned long flags;
if (!_gadget)
return 0;
dev = container_of (_gadget, struct net2280, gadget);
writel (1 << GENERATE_RESUME, &dev->usb->usbstat);
spin_lock_irqsave (&dev->lock, flags);
tmp = readl (&dev->usb->usbctl);
if (tmp & (1 << DEVICE_REMOTE_WAKEUP_ENABLE))
writel (1 << GENERATE_RESUME, &dev->usb->usbstat);
spin_unlock_irqrestore (&dev->lock, flags);
/* pci writes may still be posted */
return 0;
}
static int net2280_set_selfpowered (struct usb_gadget *_gadget, int value)
{
struct net2280 *dev;
u32 tmp;
unsigned long flags;
if (!_gadget)
return 0;
dev = container_of (_gadget, struct net2280, gadget);
spin_lock_irqsave (&dev->lock, flags);
tmp = readl (&dev->usb->usbctl);
if (value)
tmp |= (1 << SELF_POWERED_STATUS);
else
tmp &= ~(1 << SELF_POWERED_STATUS);
writel (tmp, &dev->usb->usbctl);
spin_unlock_irqrestore (&dev->lock, flags);
return 0;
}
static const struct usb_gadget_ops net2280_ops = {
.get_frame = net2280_get_frame,
.wakeup = net2280_wakeup,
// .set_selfpowered = net2280_set_selfpowered,
.set_selfpowered = net2280_set_selfpowered,
};
/*-------------------------------------------------------------------------*/
......@@ -1348,11 +1463,14 @@ show_registers (struct device *_dev, char *buf)
/* Main Control Registers */
t = snprintf (next, size, "%s version " DRIVER_VERSION
", chiprev %04x\n"
", chiprev %04x, dma %s\n\n"
"devinit %03x fifoctl %08x gadget '%s'\n"
"pci irqenb0 %02x irqenb1 %08x "
"irqstat0 %04x irqstat1 %08x\n",
driver_name, dev->chiprev,
use_dma
? (use_dma_chaining ? "chaining" : "enabled")
: "disabled",
readl (&dev->regs->devinit),
readl (&dev->regs->fifoctl),
s,
......@@ -1399,7 +1517,7 @@ show_registers (struct device *_dev, char *buf)
t1 = readl (&ep->regs->ep_cfg);
t2 = readl (&ep->regs->ep_rsp) & 0xff;
t = snprintf (next, size,
"%s\tcfg %05x rsp (%02x) %s%s%s%s%s%s%s%s"
"\n%s\tcfg %05x rsp (%02x) %s%s%s%s%s%s%s%s"
"irqenb %02x\n",
ep->ep.name, t1, t2,
(t2 & (1 << CLEAR_NAK_OUT_PACKETS))
......@@ -1453,7 +1571,7 @@ show_registers (struct device *_dev, char *buf)
// none yet
/* Statistics */
t = snprintf (next, size, "irqs: ");
t = snprintf (next, size, "\nirqs: ");
size -= t;
next += t;
for (i = 0; i < 7; i++) {
......@@ -1462,7 +1580,7 @@ show_registers (struct device *_dev, char *buf)
ep = &dev->ep [i];
if (i && !ep->irqs)
continue;
t = snprintf (next, size, " %s/%ld", ep->ep.name, ep->irqs);
t = snprintf (next, size, " %s/%lu", ep->ep.name, ep->irqs);
size -= t;
next += t;
......@@ -1504,7 +1622,7 @@ show_queues (struct device *_dev, char *buf)
continue;
t = d->bEndpointAddress;
t = snprintf (next, size,
"%s (ep%d%s-%s) max %04x %s\n",
"\n%s (ep%d%s-%s) max %04x %s fifo %d\n",
ep->ep.name, t & USB_ENDPOINT_NUMBER_MASK,
(t & USB_DIR_IN) ? "in" : "out",
({ char *val;
......@@ -1517,7 +1635,7 @@ show_queues (struct device *_dev, char *buf)
val = "iso"; break;
}; val; }),
le16_to_cpu (d->wMaxPacketSize) & 0x1fff,
ep->dma ? "dma" : "pio"
ep->dma ? "dma" : "pio", ep->fifo_size
);
} else /* ep0 should only have one transfer queued */
t = snprintf (next, size, "ep0 max 64 pio %s\n",
......@@ -1552,6 +1670,20 @@ show_queues (struct device *_dev, char *buf)
goto done;
size -= t;
next += t;
if (ep->dma) {
struct net2280_dma *td;
td = req->td;
t = snprintf (next, size, "\t td %08x "
" count %08x buf %08x desc %08x\n",
req->td_dma, td->dmacount,
td->dmaaddr, td->dmadesc);
if (t <= 0 || t > size)
goto done;
size -= t;
next += t;
}
}
}
......@@ -1686,8 +1818,10 @@ static void usb_reset (struct net2280 *dev)
/* clear old dma and irq state */
for (tmp = 0; tmp < 4; tmp++) {
writel ((1 << DMA_ABORT), &dev->dma [tmp].dmastat);
stop_dma (&dev->dma [tmp]);
struct net2280_ep *ep = &dev->ep [tmp + 1];
if (ep->dma)
abort_dma (ep);
}
writel (~0, &dev->regs->irqstat0),
writel (~(1 << SUSPEND_REQUEST_INTERRUPT), &dev->regs->irqstat1),
......@@ -1767,7 +1901,7 @@ static void ep0_start (struct net2280 *dev)
| (1 << SELF_POWERED_USB_DEVICE)
| (1 << REMOTE_WAKEUP_SUPPORT)
| (1 << USB_DETECT_ENABLE)
| (1 << DEVICE_REMOTE_WAKEUP_ENABLE)
| (1 << SELF_POWERED_STATUS)
, &dev->usb->usbctl);
/* enable irqs so we can see ep0 and general operation */
......@@ -1889,6 +2023,7 @@ int usb_gadget_unregister_driver (struct usb_gadget_driver *driver)
spin_unlock_irqrestore (&dev->lock, flags);
driver->unbind (&dev->gadget);
dev->gadget.dev.driver = 0;
dev->driver = 0;
net2280_led_active (dev, 0);
......@@ -1947,6 +2082,8 @@ static void handle_ep_small (struct net2280_ep *ep)
ep->stopped = 1;
set_halt (ep);
}
if (!req)
allow_status (ep);
mode = 2;
/* reply to extra IN data tokens with a zlp */
} else if (t & (1 << DATA_IN_TOKEN_INTERRUPT)) {
......@@ -1987,41 +2124,62 @@ static void handle_ep_small (struct net2280_ep *ep)
if (likely (ep->dma != 0)) {
if (t & (1 << SHORT_PACKET_TRANSFERRED_INTERRUPT)) {
u32 count;
int stopped = ep->stopped;
/* TRANSFERRED works around OUT_DONE erratum 0112.
* we expect (N <= maxpacket) bytes; host wrote M.
* iff (M < N) we won't ever see a DMA interrupt.
*/
count = readl (&ep->dma->dmacount);
count &= DMA_BYTE_COUNT_MASK;
if (!req->dma_done) {
/* dma can finish with the FIFO non-empty,
* on (M > N) errors.
ep->stopped = 1;
for (count = 0; ; t = readl (&ep->regs->ep_stat)) {
/* any preceding dma transfers must finish.
* dma handles (M >= N), may empty the queue
*/
scan_dma_completions (ep);
if (unlikely (list_empty (&ep->queue)
|| ep->out_overflow)) {
req = 0;
break;
}
req = list_entry (ep->queue.next,
struct net2280_request, queue);
/* here either (M < N), a "real" short rx;
* or (M == N) and the queue didn't empty
*/
while (count && (t & (1 << FIFO_EMPTY)) == 0) {
cpu_relax ();
t = readl (&ep->regs->ep_stat);
if (likely (t & (1 << FIFO_EMPTY))) {
count = readl (&ep->dma->dmacount);
count &= DMA_BYTE_COUNT_MASK;
if (readl (&ep->dma->dmadesc)
!= req->td_dma)
req = 0;
break;
}
udelay(1);
}
/* stop DMA, leave ep NAKing */
writel ((1 << DMA_ABORT), &ep->dma->dmastat);
spin_stop_dma (ep->dma);
/* buffer might have been too small */
t = readl (&ep->regs->ep_avail);
if (t != 0)
DEBUG (ep->dev, "%s dma, discard %d len %d\n",
ep->ep.name, t, count);
dma_done (ep, req, count, t ? -EOVERFLOW : 0);
if (likely (req)) {
req->td->dmacount = 0;
t = readl (&ep->regs->ep_avail);
dma_done (ep, req, count, t);
}
/* also flush to prevent erratum 0106 trouble */
if (t || ep->dev->chiprev == 0x0100)
if (unlikely (ep->out_overflow
|| (ep->dev->chiprev == 0x0100
&& ep->dev->gadget.speed
== USB_SPEED_FULL))) {
out_flush (ep);
ep->out_overflow = 0;
}
/* restart dma (still NAKing OUT!) if needed */
/* (re)start dma if needed, stop NAKing */
ep->stopped = stopped;
if (!list_empty (&ep->queue))
restart_dma (ep);
} else
......@@ -2192,11 +2350,12 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat)
* that'll mean a lot less irqs for some drivers.
*/
ep->is_in = (u.r.bRequestType & USB_DIR_IN) != 0;
if (ep->is_in)
if (ep->is_in) {
scratch = (1 << DATA_PACKET_TRANSMITTED_INTERRUPT)
| (1 << DATA_OUT_PING_TOKEN_INTERRUPT)
| (1 << DATA_IN_TOKEN_INTERRUPT);
else
stop_out_naking (ep);
} else
scratch = (1 << DATA_PACKET_RECEIVED_INTERRUPT)
| (1 << DATA_OUT_PING_TOKEN_INTERRUPT)
| (1 << DATA_IN_TOKEN_INTERRUPT);
......@@ -2398,18 +2557,18 @@ static void handle_stat1_irqs (struct net2280 *dev, u32 stat)
tmp = readl (&dma->dmastat);
writel (tmp, &dma->dmastat);
#ifdef USE_DMA_CHAINING
/* chaining should stop only on error (which?)
/* chaining should stop on abort, short OUT from fifo,
* or (stat0 codepath) short OUT transfer.
*/
#else
if ((tmp & (1 << DMA_TRANSACTION_DONE_INTERRUPT)) == 0) {
DEBUG (ep->dev, "%s no xact done? %08x\n",
ep->ep.name, tmp);
continue;
if (!use_dma_chaining) {
if ((tmp & (1 << DMA_TRANSACTION_DONE_INTERRUPT))
== 0) {
DEBUG (ep->dev, "%s no xact done? %08x\n",
ep->ep.name, tmp);
continue;
}
stop_dma (ep->dma);
}
stop_dma (ep->dma);
#endif
/* OUT transfers terminate when the data from the
* host is in our memory. Process whatever's done.
......@@ -2425,16 +2584,14 @@ static void handle_stat1_irqs (struct net2280 *dev, u32 stat)
/* disable dma on inactive queues; else maybe restart */
if (list_empty (&ep->queue)) {
#ifdef USE_DMA_CHAINING
stop_dma (ep->dma);
#endif
if (use_dma_chaining)
stop_dma (ep->dma);
} else {
tmp = readl (&dma->dmactl);
if ((tmp & (1 << DMA_SCATTER_GATHER_ENABLE)) == 0
if (!use_dma_chaining
|| (tmp & (1 << DMA_ENABLE)) == 0)
restart_dma (ep);
#ifdef USE_DMA_CHAINING
else if (ep->desc->bEndpointAddress & USB_DIR_IN) {
else if (ep->is_in && use_dma_chaining) {
struct net2280_request *req;
u32 dmacount;
......@@ -2449,12 +2606,9 @@ static void handle_stat1_irqs (struct net2280 *dev, u32 stat)
dmacount &= __constant_cpu_to_le32 (
(1 << VALID_BIT)
| DMA_BYTE_COUNT_MASK);
if (dmacount && (dmacount & valid_bit) == 0) {
stop_dma (ep->dma);
if (dmacount && (dmacount & valid_bit) == 0)
restart_dma (ep);
}
}
#endif
}
ep->irqs++;
}
......@@ -2505,7 +2659,7 @@ static void gadget_release (struct device *_dev)
/* tear down the binding between this driver and the pci device */
static void net2280_remove (struct pci_dev *pdev)
static void __exit net2280_remove (struct pci_dev *pdev)
{
struct net2280 *dev = pci_get_drvdata (pdev);
......@@ -2665,12 +2819,14 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id)
}
td->dmacount = 0; /* not VALID */
td->dmaaddr = __constant_cpu_to_le32 (DMA_ADDR_INVALID);
td->dmadesc = td->dmaaddr;
dev->ep [i].dummy = td;
}
/* enable lower-overhead pci memory bursts during DMA */
writel ((1 << PCI_RETRY_ABORT_ENABLE)
| (1 << DMA_MEMORY_WRITE_AND_INVALIDATE_ENABLE)
writel ( (1 << DMA_MEMORY_WRITE_AND_INVALIDATE_ENABLE)
// 256 write retries may not be enough...
// | (1 << PCI_RETRY_ABORT_ENABLE)
| (1 << DMA_READ_MULTIPLE_ENABLE)
| (1 << DMA_READ_LINE_ENABLE)
, &dev->pci->pcimstctl);
......@@ -2686,15 +2842,10 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id)
INFO (dev, "%s\n", driver_desc);
INFO (dev, "irq %s, pci mem %p, chip rev %04x\n",
bufp, base, dev->chiprev);
bufp = DRIVER_VERSION
#ifndef USE_DMA_CHAINING
" (no dma chain)"
#endif
#ifdef NET2280_DMA_OUT_WORKAROUND
" (no dma out)"
#endif
;
INFO (dev, "version: %s\n", bufp);
INFO (dev, "version: " DRIVER_VERSION "; dma %s\n",
use_dma
? (use_dma_chaining ? "chaining" : "enabled")
: "disabled");
the_controller = dev;
device_register (&dev->gadget.dev);
......@@ -2729,7 +2880,7 @@ static struct pci_driver net2280_pci_driver = {
.id_table = pci_ids,
.probe = net2280_probe,
.remove = net2280_remove,
.remove = __exit_p(net2280_remove),
/* FIXME add power management support */
};
......@@ -2740,6 +2891,8 @@ MODULE_LICENSE ("GPL");
static int __init init (void)
{
if (!use_dma)
use_dma_chaining = 0;
return pci_module_init (&net2280_pci_driver);
}
module_init (init);
......
drivers/usb/gadget/net2280.h
View file @ 659f7c1a
......@@ -520,6 +520,7 @@ struct net2280_ep {
unsigned num : 8,
fifo_size : 12,
in_fifo_validate : 1,
out_overflow : 1,
stopped : 1,
is_in : 1,
is_iso : 1;
......@@ -529,6 +530,7 @@ static inline void allow_status (struct net2280_ep *ep)
{
/* ep0 only */
writel ( (1 << CLEAR_CONTROL_STATUS_PHASE_HANDSHAKE)
| (1 << CLEAR_NAK_OUT_PACKETS)
| (1 << CLEAR_NAK_OUT_PACKETS_MODE)
, &ep->regs->ep_rsp);
ep->stopped = 1;
......@@ -546,7 +548,6 @@ struct net2280_request {
dma_addr_t td_dma;
struct list_head queue;
unsigned mapped : 1,
dma_done : 1,
valid : 1;
};
......@@ -559,8 +560,7 @@ struct net2280 {
unsigned enabled : 1,
protocol_stall : 1,
got_irq : 1,
region : 1,
selfpowered : 1;
region : 1;
u16 chiprev;
/* pci state used to access those endpoints */
......
drivers/usb/gadget/serial.c
View file @ 659f7c1a
......@@ -135,9 +135,6 @@ do { \
#define GS_NUM_PORTS 16
#define GS_VENDOR_ID 0x05F9
#define GS_PRODUCT_ID 0xFFFF
#define GS_NUM_CONFIGS 1
#define GS_NO_CONFIG_ID 0
#define GS_BULK_CONFIG_ID 2
......@@ -187,7 +184,7 @@ static int debug = G_SERIAL_DEBUG;
* DMA channels to manage their FIFOs. It supports high speed.
* Those endpoints can be arranged in any desired configuration.
*/
#ifdef CONFIG_USB_G_SERIAL_NET2280
#ifdef CONFIG_USB_GADGET_NET2280
#define CHIP "net2280"
#define EP0_MAXPACKET 64
static const char EP_OUT_NAME[] = "ep-a";
......@@ -220,13 +217,13 @@ static inline void hw_optimize(struct usb_gadget *gadget)
* can't use altsettings or reset the interfaces independently.
* So stick to a single interface.
*/
#ifdef CONFIG_USB_G_SERIAL_PXA2XX
#ifdef CONFIG_USB_GADGET_PXA2XX
#define CHIP "pxa2xx"
#define EP0_MAXPACKET 16
static const char EP_OUT_NAME[] = "ep12out-bulk";
#define EP_OUT_NUM 12
static const char EP_IN_NAME[] = "ep11in-bulk";
#define EP_IN_NUM 11
static const char EP_OUT_NAME[] = "ep2out-bulk";
#define EP_OUT_NUM 2
static const char EP_IN_NAME[] = "ep1in-bulk";
#define EP_IN_NUM 1
#define SELFPOWER USB_CONFIG_ATT_SELFPOWER
/* no hw optimizations to apply */
......@@ -245,7 +242,7 @@ static const char EP_IN_NAME[] = "ep11in-bulk";
* in special situations. So this is a case of "choose it right
* during enumeration" ...
*/
#ifdef CONFIG_USB_G_SERIAL_SA1100
#ifdef CONFIG_USB_GADGET_SA1100
#define CHIP "sa1100"
#define EP0_MAXPACKET 8
static const char EP_OUT_NAME[] = "ep1out-bulk";
......@@ -264,7 +261,7 @@ static const char EP_IN_NAME [] = "ep2in-bulk";
*
* This has three semi-configurable full speed bulk/interrupt endpoints.
*/
#ifdef CONFIG_USB_G_SERIAL_GOKU
#ifdef CONFIG_USB_GADGET_GOKU
#define CHIP "goku"
#define DRIVER_VERSION_NUM 0x0116
#define EP0_MAXPACKET 8
......@@ -302,6 +299,14 @@ static const char EP_IN_NAME [] = "ep2-bulk";
/* else value must be USB_CONFIG_ATT_WAKEUP */
#endif
/* Thanks to NetChip Technologies for donating this product ID.
*
* DO NOT REUSE THESE IDs with a protocol-incompatible driver!! Ever!!
* Instead: allocate your own, using normal USB-IF procedures.
*/
#define GS_VENDOR_ID 0x0525 /* NetChip */
#define GS_PRODUCT_ID 0xa4a6 /* Linux-USB Serial Gadget */
/* Structures */
......
drivers/usb/gadget/zero.c
View file @ 659f7c1a
......@@ -131,7 +131,7 @@ static const char loopback [] = "loop input to output";
* DMA channels to manage their FIFOs. It supports high speed.
* Those endpoints can be arranged in any desired configuration.
*/
#ifdef CONFIG_USB_ZERO_NET2280
#if defined(CONFIG_USB_GADGET_NET2280) || defined(CONFIG_USB_GADGET_DUMMY_HCD)
#define CHIP "net2280"
#define DRIVER_VERSION_NUM 0x0101
static const char EP_OUT_NAME [] = "ep-a";
......@@ -154,7 +154,7 @@ static const char EP_IN_NAME [] = "ep-b";
* can't use altsettings or reset the interfaces independently.
* So stick to a single interface.
*/
#ifdef CONFIG_USB_ZERO_PXA2XX
#ifdef CONFIG_USB_GADGET_PXA2XX
#define CHIP "pxa2xx"
#define DRIVER_VERSION_NUM 0x0103
static const char EP_OUT_NAME [] = "ep12out-bulk";
......@@ -176,7 +176,7 @@ static const char EP_IN_NAME [] = "ep11in-bulk";
* in special situations. So this is a case of "choose it right
* during enumeration" ...
*/
#ifdef CONFIG_USB_ZERO_SA1100
#ifdef CONFIG_USB_GADGET_SA1100
#define CHIP "sa1100"
#define DRIVER_VERSION_NUM 0x0105
static const char EP_OUT_NAME [] = "ep1out-bulk";
......@@ -192,7 +192,7 @@ static const char EP_IN_NAME [] = "ep2in-bulk";
*
* This has three semi-configurable full speed bulk/interrupt endpoints.
*/
#ifdef CONFIG_USB_ZERO_GOKU
#ifdef CONFIG_USB_GADGET_GOKU
#define CHIP "goku"
#define DRIVER_VERSION_NUM 0x0106
static const char EP_OUT_NAME [] = "ep1-bulk";
......@@ -936,7 +936,7 @@ zero_set_config (struct zero_dev *dev, unsigned number, int gfp_flags)
if (number == dev->config)
return 0;
#ifdef CONFIG_USB_ZERO_SA1100
#ifdef CONFIG_USB_GADGET_SA1100
if (dev->config) {
/* tx fifo is full, but we can't clear it...*/
INFO (dev, "can't change configurations\n");
......
drivers/usb/host/ohci-hcd.c
View file @ 659f7c1a
......@@ -684,6 +684,10 @@ MODULE_LICENSE ("GPL");
#include "ohci-sa1111.c"
#endif
#if !(defined(CONFIG_PCI) || defined(CONFIG_SA1111))
#ifdef CONFIG_ARCH_OMAP
#include "ohci-omap.c"
#endif
#if !(defined(CONFIG_PCI) || defined(CONFIG_SA1111) || defined(CONFIG_ARCH_OMAP))
#error "missing bus glue for ohci-hcd"
#endif
drivers/usb/host/ohci-omap.c 0 → 100644
View file @ 659f7c1a
/*
* OHCI HCD (Host Controller Driver) for USB.
*
* (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
* (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net>
* (C) Copyright 2002 Hewlett-Packard Company
*
* OMAP Bus Glue
*
* Written by Christopher Hoover <ch@hpl.hp.com>
* Based on fragments of previous driver by Rusell King et al.
*
* Modified for OMAP from ohci-sa1111.c by Tony Lindgren <tony@atomide.com>
* Based on the 2.4 OMAP OHCI driver originally done by MontaVista Software Inc.
*
* This file is licenced under the GPL.
*/
#include <asm/hardware.h>
#include <asm/mach-types.h>
#include <asm/io.h>
#include <asm/arch/bus.h>
#include <asm/arch/hardware.h>
#include <asm/arch/mux.h>
#include <asm/arch/irqs.h>
#include "ohci-omap.h"
#ifndef CONFIG_ARCH_OMAP
#error "This file is OMAP bus glue. CONFIG_OMAP must be defined."
#endif
extern int usb_disabled(void);
extern int ocpi_enable(void);
/*
* Use the first port only by default. Override with hmc_mode option.
*
* NOTE: Many OMAP-1510 Innovators supposedly have bad wiring for the USB ports
* 1 & 2, so only port 0 will work. To use the OHCI on the first port, use
* the Innovator USB client cable with a client-to-client connector and modify
* either the cable or the hub to feed 5V VBUS back to Innovator. VBUS should
* be the red lead in the cable.
*
* To mount USB hard disk as root, see the patch for do_mounts.c that tries
* remounting the root, and use root=0801 if your root is on sda1. Does not
* work with devfs.
*/
static int default_hmc_mode = 16;
static int hmc_mode = 1234;
/*
* Set the USB host pin multiplexing and the selected HMC mode
*/
static int omap_usb_set_hmc_mode(int hmc_mode)
{
unsigned int val;
switch (hmc_mode) {
case 0:
/* 0: function, 1: disabled, 2: disabled */
omap_cfg_reg(W4_USB_PUEN);
omap_cfg_reg(R18_1510_USB_GPIO0);
break;
case 4:
/* 0: function 1: host 2: host */
omap_cfg_reg(usb1_speed);
omap_cfg_reg(usb1_susp);
omap_cfg_reg(usb1_seo);
omap_cfg_reg(usb1_txen);
omap_cfg_reg(usb1_txd);
omap_cfg_reg(usb1_vp);
omap_cfg_reg(usb1_vm);
omap_cfg_reg(usb1_rcv);
omap_cfg_reg(usb2_susp);
omap_cfg_reg(usb2_seo);
omap_cfg_reg(usb2_txen);
omap_cfg_reg(usb2_txd);
omap_cfg_reg(usb2_vp);
omap_cfg_reg(usb2_vm);
omap_cfg_reg(usb2_rcv);
break;
case 16:
/* 0: host, 1: disabled, 2: disabled */
omap_cfg_reg(W9_USB0_TXEN);
omap_cfg_reg(AA9_USB0_VP);
omap_cfg_reg(Y5_USB0_RCV);
omap_cfg_reg(R9_USB0_VM);
omap_cfg_reg(V6_USB0_TXD);
omap_cfg_reg(W5_USB0_SE0);
break;
default:
printk("Unknown USB host configuration: %i\n", hmc_mode);
return -ENODEV;
}
/* Write the selected HMC mode */
val = readl(MOD_CONF_CTRL_0) & ~HMC_CLEAR;
val |= (hmc_mode << 1);
writel(val, MOD_CONF_CTRL_0);
return 0;
}
/*
* OHCI clock initialization for OMAP-1510 and 1610
*/
static int omap_ohci_clock_power(int on)
{
if (on) {
if (cpu_is_omap_1510()) {
/* Use DPLL, not APLL */
writel(readl(ULPD_APLL_CTRL_REG) & ~APLL_NDPLL_SWITCH,
ULPD_APLL_CTRL_REG);
/* Enable DPLL */
writel(readl(ULPD_DPLL_CTRL_REG) | DPLL_PLL_ENABLE,
ULPD_DPLL_CTRL_REG);
/* Software request for USB 48MHz clock */
writel(readl(ULPD_SOFT_REQ_REG) | SOFT_REQ_REG_REQ,
ULPD_SOFT_REQ_REG);
while (!(readl(ULPD_DPLL_CTRL_REG) & DPLL_LOCK));
}
if (cpu_is_omap_1610()) {
/* Enable OHCI */
writel(readl(ULPD_SOFT_REQ_REG) | SOFT_USB_OTG_REQ,
ULPD_SOFT_REQ_REG);
/* USB host clock request if not using OTG */
writel(readl(ULPD_SOFT_REQ_REG) | SOFT_USB_REQ,
ULPD_SOFT_REQ_REG);
outl(inl(ULPD_STATUS_REQ_REG) | USB_HOST_DPLL_REQ,
ULPD_STATUS_REQ_REG);
}
/* Enable 48MHz clock to USB */
writel(readl(ULPD_CLOCK_CTRL_REG) | USB_MCLK_EN,
ULPD_CLOCK_CTRL_REG);
writel(readl(ARM_IDLECT2) | (1 << EN_LBFREECK) | (1 << EN_LBCK),
ARM_IDLECT2);
writel(readl(MOD_CONF_CTRL_0) | USB_HOST_HHC_UHOST_EN,
MOD_CONF_CTRL_0);
} else {
/* Disable 48MHz clock to USB */
writel(readl(ULPD_CLOCK_CTRL_REG) & ~USB_MCLK_EN,
ULPD_CLOCK_CTRL_REG);
/* FIXME: The DPLL stays on for now */
}
return 0;
}
/*
* Hardware specific transceiver power on/off
*/
static int omap_ohci_transceiver_power(int on)
{
if (on) {
if (omap_is_innovator())
writel(readl(OMAP1510_FPGA_HOST_CTRL) | 0x20,
OMAP1510_FPGA_HOST_CTRL);
} else {
if (omap_is_innovator())
writel(readl(OMAP1510_FPGA_HOST_CTRL) & ~0x20,
OMAP1510_FPGA_HOST_CTRL);
}
return 0;
}
/*
* OMAP-1510 specific Local Bus clock on/off
*/
static int omap_1510_local_bus_power(int on)
{
if (on) {
writel((1 << 1) | (1 << 0), OMAP1510_LB_MMU_CTL);
udelay(200);
} else {
writel(0, OMAP1510_LB_MMU_CTL);
}
return 0;
}
/*
* OMAP-1510 specific Local Bus initialization
* NOTE: This assumes 32MB memory size in OMAP1510LB_MEMSIZE.
* See also arch/mach-omap/memory.h for __virt_to_bus() and
* __bus_to_virt() which need to match with the physical
* Local Bus address below.
*/
static int omap_1510_local_bus_init(void)
{
unsigned int tlb;
unsigned long lbaddr, physaddr;
writel((readl(OMAP1510_LB_CLOCK_DIV) & 0xfffffff8) | 0x4,
OMAP1510_LB_CLOCK_DIV);
/* Configure the Local Bus MMU table */
for (tlb = 0; tlb < OMAP1510_LB_MEMSIZE; tlb++) {
lbaddr = tlb * 0x00100000 + OMAP1510_LB_OFFSET;
physaddr = tlb * 0x00100000 + PHYS_OFFSET;
writel((lbaddr & 0x0fffffff) >> 22, OMAP1510_LB_MMU_CAM_H);
writel(((lbaddr & 0x003ffc00) >> 6) | 0xc,
OMAP1510_LB_MMU_CAM_L);
writel(physaddr >> 16, OMAP1510_LB_MMU_RAM_H);
writel((physaddr & 0x0000fc00) | 0x300, OMAP1510_LB_MMU_RAM_L);
writel(tlb << 4, OMAP1510_LB_MMU_LCK);
writel(0x1, OMAP1510_LB_MMU_LD_TLB);
}
/* Enable the walking table */
writel(readl(OMAP1510_LB_MMU_CTL) | (1 << 3), OMAP1510_LB_MMU_CTL);
udelay(200);
return 0;
}
/*
* OMAP-1610 specific hardware initialization
*
* Intended to configure OMAP-1610 USB host and OTG ports depending on
* the HMC mode selected.
*
* FIXME: Currently only supports alternate ping group 2 mode, should
* be easy to modify for other configurations once there is some
* hardware to test with.
*/
static int omap_1610_usb_init(int mode)
{
u_int val = 0;
/* Configure the OMAP transceiver settings */
val |= (1 << 8); /* CONF_USB2_UNI TRM p 15-205*/
val |= (4 << 4); /* TRM p 5-59, p 15-157 (1224) */
//val |= (1 << 3); /* Isolate integrated transceiver from port 0 */
val |= (1 << 2); /* Disable pulldown on integrated transceiver DM */
val |= (1 << 1); /* Disable pulldown on integraded transceiver DP */
outl(val, USB_TRANSCEIVER_CTRL);
/* Set the USB0_TRX_MODE */
val = 0;
val &= ~OTG_IDLE_EN;
val &= ~DEV_IDLE_EN;
val &= ~(7 << 16); /* Clear USB0_TRX_MODE */
val |= (3 << 16); /* 0 or 3, 6-wire DAT/SE0, TRM p 15-159 */
outl(val, OTG_SYSCON_1);
/*
* Control via OTG, see TRM p 15-163
*/
val = 0;
//val |= 1; /* REVISIT: Enable OTG = 1 */
/* Control via OTG */
val &= ~HMC_PADEN;
val &= ~OTG_PADEN;
val |= UHOST_EN;
val &= ~0x3f; /* Clear HMC mode */
val |= mode; /* Set HMC mode */
val &= ~(7 << 16); /* Clear ASE0_BRST */
val |= (4 << 16); /* Must be 4 */
val |= USBX_SYNCHRO; /* Must be set */
val |= SRP_VBUS;
outl(val, OTG_SYSCON_2);
/* Enable OTG idle */
//outl(inl(OTG_SYSCON_1) | OTG_IDLE_EN, OTG_SYSCON_1);
return 0;
}
/*-------------------------------------------------------------------------*/
static void omap_start_hc(struct omap_dev *dev)
{
printk(KERN_DEBUG __FILE__
": starting OMAP OHCI USB Controller\n");
/*
* Set the HMC mode for the USB ports
*/
#if 0
/* See note about the Innovator wiring above */
if (omap_is_innovator())
hmc_mode = 4; /* 0: function 1: host 2: host */
#endif
if (cpu_is_omap_1610())
ocpi_enable();
omap_usb_set_hmc_mode(hmc_mode);
omap_ohci_clock_power(1);
omap_ohci_transceiver_power(1);
if (cpu_is_omap_1510()) {
omap_1510_local_bus_power(1);
omap_1510_local_bus_init();
}
if (cpu_is_omap_1610())
omap_1610_usb_init(hmc_mode);
//omap_enable_device(dev);
}
static void omap_stop_hc(struct omap_dev *dev)
{
printk(KERN_DEBUG __FILE__
": stopping OMAP OHCI USB Controller\n");
/*
* FIXME: Put the USB host controller into reset.
*/
/*
* FIXME: Stop the USB clock.
*/
//omap_disable_device(dev);
}
/*-------------------------------------------------------------------------*/
static irqreturn_t usb_hcd_omap_hcim_irq (int irq, void *__hcd, struct pt_regs * r)
{
struct usb_hcd *hcd = __hcd;
return usb_hcd_irq(irq, hcd, r);
}
/*-------------------------------------------------------------------------*/
void usb_hcd_omap_remove (struct usb_hcd *, struct omap_dev *);
/* configure so an HC device and id are always provided */
/* always called with process context; sleeping is OK */
/**
* usb_hcd_omap_probe - initialize OMAP-based HCDs
* Context: !in_interrupt()
*
* Allocates basic resources for this USB host controller, and
* then invokes the start() method for the HCD associated with it
* through the hotplug entry's driver_data.
*
* Store this function in the HCD's struct pci_driver as probe().
*/
int usb_hcd_omap_probe (const struct hc_driver *driver,
struct usb_hcd **hcd_out,
struct omap_dev *dev)
{
int retval;
struct usb_hcd *hcd = 0;
if (!request_mem_region(dev->res.start,
dev->res.end - dev->res.start + 1, hcd_name)) {
dbg("request_mem_region failed");
return -EBUSY;
}
omap_start_hc(dev);
hcd = driver->hcd_alloc ();
if (hcd == NULL){
dbg ("hcd_alloc failed");
retval = -ENOMEM;
goto err1;
}
hcd->driver = (struct hc_driver *) driver;
hcd->description = driver->description;
hcd->irq = dev->irq[0];
hcd->regs = dev->mapbase;
hcd->pdev = OMAP_FAKE_PCIDEV;
hcd->self.controller = &dev->dev;
hcd->controller = hcd->self.controller;
retval = hcd_buffer_create (hcd);
if (retval != 0) {
dbg ("pool alloc fail");
goto err1;
}
retval = request_irq (hcd->irq,
usb_hcd_omap_hcim_irq,
SA_INTERRUPT, hcd->description, hcd);
if (retval != 0) {
dbg("request_irq failed");
retval = -EBUSY;
goto err2;
}
info ("%s (OMAP) at 0x%p, irq %d\n",
hcd->description, hcd->regs, hcd->irq);
usb_bus_init (&hcd->self);
hcd->self.op = &usb_hcd_operations;
hcd->self.hcpriv = (void *) hcd;
hcd->self.bus_name = "omap";
hcd->product_desc = "OMAP OHCI";
INIT_LIST_HEAD (&hcd->dev_list);
usb_register_bus (&hcd->self);
if ((retval = driver->start (hcd)) < 0)
{
usb_hcd_omap_remove(hcd, dev);
return retval;
}
*hcd_out = hcd;
return 0;
err2:
hcd_buffer_destroy (hcd);
if (hcd)
driver->hcd_free(hcd);
err1:
omap_stop_hc(dev);
release_mem_region(dev->res.start, dev->res.end - dev->res.start + 1);
return retval;
}
/* may be called without controller electrically present */
/* may be called with controller, bus, and devices active */
/**
* usb_hcd_omap_remove - shutdown processing for OMAP-based HCDs
* @dev: USB Host Controller being removed
* Context: !in_interrupt()
*
* Reverses the effect of usb_hcd_omap_probe(), first invoking
* the HCD's stop() method. It is always called from a thread
* context, normally "rmmod", "apmd", or something similar.
*
*/
void usb_hcd_omap_remove (struct usb_hcd *hcd, struct omap_dev *dev)
{
struct usb_device *hub;
void *base;
info ("remove: %s, state %x", hcd->self.bus_name, hcd->state);
if (in_interrupt ())
BUG ();
hub = hcd->self.root_hub;
hcd->state = USB_STATE_QUIESCING;
dbg ("%s: roothub graceful disconnect", hcd->self.bus_name);
usb_disconnect (&hub);
hcd->driver->stop (hcd);
hcd_buffer_destroy (hcd);
hcd->state = USB_STATE_HALT;
free_irq (hcd->irq, hcd);
usb_deregister_bus (&hcd->self);
base = hcd->regs;
hcd->driver->hcd_free (hcd);
omap_stop_hc(dev);
release_mem_region(dev->res.start, dev->res.end - dev->res.start + 1);
}
/*-------------------------------------------------------------------------*/
static int __devinit
ohci_omap_start (struct usb_hcd *hcd)
{
struct ohci_hcd *ohci = hcd_to_ohci (hcd);
int ret;
if (hcd->pdev) {
ohci->hcca = pci_alloc_consistent (hcd->pdev,
sizeof *ohci->hcca, &ohci->hcca_dma);
if (!ohci->hcca)
return -ENOMEM;
}
memset (ohci->hcca, 0, sizeof (struct ohci_hcca));
if ((ret = ohci_mem_init (ohci)) < 0) {
ohci_stop (hcd);
return ret;
}
ohci->regs = hcd->regs;
if (hc_reset (ohci) < 0) {
ohci_stop (hcd);
return -ENODEV;
}
if (hc_start (ohci) < 0) {
err ("can't start %s", ohci->hcd.self.bus_name);
ohci_stop (hcd);
return -EBUSY;
}
create_debug_files (ohci);
#ifdef DEBUG
ohci_dump (ohci, 1);
#endif
return 0;
}
/*-------------------------------------------------------------------------*/
static const struct hc_driver ohci_omap_hc_driver = {
.description = hcd_name,
/*
* generic hardware linkage
*/
.irq = ohci_irq,
.flags = HCD_USB11,
/*
* basic lifecycle operations
*/
.start = ohci_omap_start,
#ifdef CONFIG_PM
/* suspend: ohci_omap_suspend, -- tbd */
/* resume: ohci_omap_resume, -- tbd */
#endif
.stop = ohci_stop,
/*
* memory lifecycle (except per-request)
*/
.hcd_alloc = ohci_hcd_alloc,
.hcd_free = ohci_hcd_free,
/*
* managing i/o requests and associated device resources
*/
.urb_enqueue = ohci_urb_enqueue,
.urb_dequeue = ohci_urb_dequeue,
.endpoint_disable = ohci_endpoint_disable,
/*
* scheduling support
*/
.get_frame_number = ohci_get_frame,
/*
* root hub support
*/
.hub_status_data = ohci_hub_status_data,
.hub_control = ohci_hub_control,
};
/*-------------------------------------------------------------------------*/
static int ohci_hcd_omap_drv_probe(struct omap_dev *dev)
{
struct usb_hcd *hcd = NULL;
int ret;
if (usb_disabled())
return -ENODEV;
ret = usb_hcd_omap_probe(&ohci_omap_hc_driver, &hcd, dev);
if (ret == 0)
omap_set_drvdata(dev, hcd);
return ret;
}
static int ohci_hcd_omap_drv_remove(struct omap_dev *dev)
{
struct usb_hcd *hcd = omap_get_drvdata(dev);
usb_hcd_omap_remove(hcd, dev);
omap_set_drvdata(dev, NULL);
return 0;
}
/*
* Driver definition to register with the OMAP bus
*/
static struct omap_driver ohci_hcd_omap_driver = {
.drv = {
.name = OMAP_OHCI_NAME,
},
.devid = OMAP_OCP_DEVID_USB,
.busid = OMAP_BUS_OCP,
.clocks = 0,
.probe = ohci_hcd_omap_drv_probe,
.remove = ohci_hcd_omap_drv_remove,
};
/* Any dma_mask must be set for OHCI to work */
static u64 omap_dmamask = 0xffffffffUL;
/*
* Device definition to match the driver above
*/
static struct omap_dev ohci_hcd_omap_device = {
.name = OMAP_OHCI_NAME,
.devid = OMAP_OCP_DEVID_USB,
.busid = OMAP_BUS_OCP,
.mapbase = (void *)OMAP_OHCI_BASE,
.dma_mask = &omap_dmamask, /* Needed only for OHCI */
.res = {
.start = OMAP_OHCI_BASE,
.end = OMAP_OHCI_BASE + OMAP_OHCI_SIZE,
},
.irq = {
INT_OHCI,
},
};
static int __init ohci_hcd_omap_init (void)
{
int ret;
dbg (DRIVER_INFO " (OMAP)");
dbg ("block sizes: ed %d td %d\n",
sizeof (struct ed), sizeof (struct td));
if (hmc_mode < 0 || hmc_mode > 25)
hmc_mode = default_hmc_mode;
/* Register the driver with OMAP bus */
ret = omap_driver_register(&ohci_hcd_omap_driver);
if (ret != 0)
return -ENODEV;
/* Register the device with OMAP bus */
ret = omap_device_register(&ohci_hcd_omap_device);
if (ret != 0) {
omap_driver_unregister(&ohci_hcd_omap_driver);
return -ENODEV;
}
return ret;
}
MODULE_PARM(hmc_mode, "hmc_mode");
static void __exit ohci_hcd_omap_cleanup (void)
{
omap_device_unregister(&ohci_hcd_omap_device);
omap_driver_unregister(&ohci_hcd_omap_driver);
}
module_init (ohci_hcd_omap_init);
module_exit (ohci_hcd_omap_cleanup);
drivers/usb/host/ohci-omap.h 0 → 100644
View file @ 659f7c1a
/*
* linux/drivers/usb/host/ohci-omap.h
*
* OMAP OHCI USB controller specific defines
*/
/* OMAP USB OHCI common defines */
#define OMAP_OHCI_NAME "omap-ohci"
#define OMAP_OHCI_BASE 0xfffba000
#define OMAP_OHCI_SIZE 4096
#define HMC_CLEAR (0x3f << 1)
#define APLL_NDPLL_SWITCH 0x0001
#define DPLL_PLL_ENABLE 0x0010
#define DPLL_LOCK 0x0001
#define SOFT_REQ_REG_REQ 0x0001
#define USB_MCLK_EN 0x0010
#define USB_HOST_HHC_UHOST_EN 0x00000200
#define SOFT_USB_OTG_REQ (1 << 8)
#define SOFT_USB_REQ (1 << 3)
#define STATUS_REQ_REG 0xfffe0840
#define USB_HOST_DPLL_REQ (1 << 8)
#define SOFT_DPLL_REQ (1 << 0)
/* OMAP-1510 USB OHCI defines */
#define OMAP1510_LB_MEMSIZE 32 /* Should be same as SDRAM size */
#define OMAP1510_LB_CLOCK_DIV 0xfffec10c
#define OMAP1510_LB_MMU_CTL 0xfffec208
#define OMAP1510_LB_MMU_LCK 0xfffec224
#define OMAP1510_LB_MMU_LD_TLB 0xfffec228
#define OMAP1510_LB_MMU_CAM_H 0xfffec22c
#define OMAP1510_LB_MMU_CAM_L 0xfffec230
#define OMAP1510_LB_MMU_RAM_H 0xfffec234
#define OMAP1510_LB_MMU_RAM_L 0xfffec238
/* OMAP-1610 USB OHCI defines */
#define USB_TRANSCEIVER_CTRL 0xfffe1064
#define OTG_REV 0xfffb0400
#define OTG_SYSCON_1 0xfffb0404
#define OTG_IDLE_EN (1 << 15)
#define DEV_IDLE_EN (1 << 13)
#define OTG_SYSCON_2 0xfffb0408
#define OTG_CTRL 0xfffb040c
#define OTG_IRQ_EN 0xfffb0410
#define OTG_IRQ_SRC 0xfffb0414
#define OTG_EN (1 << 31)
#define USBX_SYNCHRO (1 << 30)
#define SRP_VBUS (1 << 12)
#define OTG_PADEN (1 << 10)
#define HMC_PADEN (1 << 9)
#define UHOST_EN (1 << 8)
/* Hardware specific defines */
#define OMAP1510_FPGA_HOST_CTRL 0xe800020c
drivers/usb/media/dabusb.c
View file @ 659f7c1a
......@@ -781,17 +781,25 @@ static int dabusb_probe (struct usb_interface *intf,
static void dabusb_disconnect (struct usb_interface *intf)
{
wait_queue_t __wait;
pdabusb_t s = usb_get_intfdata (intf);
dbg("dabusb_disconnect");
init_waitqueue_entry(&__wait, current);
usb_set_intfdata (intf, NULL);
if (s) {
usb_deregister_dev (intf, &dabusb_class);
s->remove_pending = 1;
wake_up (&s->wait);
add_wait_queue(&s->remove_ok, &__wait);
set_current_state(TASK_UNINTERRUPTIBLE);
if (s->state == _started)
sleep_on (&s->remove_ok);
schedule();
current->state = TASK_RUNNING;
remove_wait_queue(&s->remove_ok, &__wait);
s->usbdev = NULL;
s->overruns = 0;
}
......
drivers/usb/misc/Kconfig
View file @ 659f7c1a
......@@ -6,6 +6,7 @@ comment "USB Miscellaneous drivers"
config USB_EMI62
tristate "EMI 6|2m USB Audio interface support"
depends on USB
---help---
This driver loads firmware to Emagic EMI 6|2m low latency USB
Audio and Midi interface.
......@@ -20,6 +21,7 @@ config USB_EMI62
config USB_EMI26
tristate "EMI 2|6 USB Audio interface support"
depends on USB
---help---
This driver loads firmware to Emagic EMI 2|6 low latency USB
Audio interface.
......
drivers/usb/misc/auerswald.c
View file @ 659f7c1a
......@@ -1927,7 +1927,6 @@ static int auerswald_probe (struct usb_interface *intf,
{
struct usb_device *usbdev = interface_to_usbdev(intf);
pauerswald_t cp = NULL;
DECLARE_WAIT_QUEUE_HEAD (wqh);
unsigned int u = 0;
char *pbuf;
int ret;
......@@ -1975,7 +1974,8 @@ static int auerswald_probe (struct usb_interface *intf,
dbg ("Version is %X", cp->version);
/* allow some time to settle the device */
sleep_on_timeout (&wqh, HZ / 3 );
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(HZ/3);
/* Try to get a suitable textual description of the device */
/* Device name:*/
......
drivers/usb/misc/tiglusb.c
View file @ 659f7c1a
......@@ -161,7 +161,7 @@ tiglusb_read (struct file *filp, char __user *buf, size_t count, loff_t * f_pos)
int bytes_to_read = 0;
int bytes_read = 0;
int result = 0;
char buffer[BULK_RCV_MAX];
char *buffer;
unsigned int pipe;
if (*f_pos)
......@@ -173,6 +173,10 @@ tiglusb_read (struct file *filp, char __user *buf, size_t count, loff_t * f_pos)
if (!s->dev)
return -EIO;
buffer = kmalloc(BULK_RCV_MAX, GFP_KERNEL);
if (!buffer)
return -ENOMEM;
bytes_to_read = (count >= BULK_RCV_MAX) ? BULK_RCV_MAX : count;
pipe = usb_rcvbulkpipe (s->dev, 1);
......@@ -203,6 +207,7 @@ tiglusb_read (struct file *filp, char __user *buf, size_t count, loff_t * f_pos)
}
out:
kfree(buffer);
return ret ? ret : bytes_read;
}
......@@ -214,7 +219,7 @@ tiglusb_write (struct file *filp, const char __user *buf, size_t count, loff_t *
int bytes_to_write = 0;
int bytes_written = 0;
int result = 0;
char buffer[BULK_SND_MAX];
char *buffer;
unsigned int pipe;
if (*f_pos)
......@@ -226,6 +231,10 @@ tiglusb_write (struct file *filp, const char __user *buf, size_t count, loff_t *
if (!s->dev)
return -EIO;
buffer = kmalloc(BULK_SND_MAX, GFP_KERNEL);
if (!buffer)
return -ENOMEM;
bytes_to_write = (count >= BULK_SND_MAX) ? BULK_SND_MAX : count;
if (copy_from_user (buffer, buf, bytes_to_write)) {
ret = -EFAULT;
......@@ -258,6 +267,7 @@ tiglusb_write (struct file *filp, const char __user *buf, size_t count, loff_t *
}
out:
kfree(buffer);
return ret ? ret : bytes_written;
}
......@@ -387,7 +397,11 @@ tiglusb_probe (struct usb_interface *intf,
static void
tiglusb_disconnect (struct usb_interface *intf)
{
wait_queue_t __wait;
ptiglusb_t s = usb_get_intfdata (intf);
init_waitqueue_entry(&__wait, current);
usb_set_intfdata (intf, NULL);
if (!s || !s->dev) {
......@@ -397,8 +411,12 @@ tiglusb_disconnect (struct usb_interface *intf)
s->remove_pending = 1;
wake_up (&s->wait);
add_wait_queue(&s->wait, &__wait);
set_current_state(TASK_UNINTERRUPTIBLE);
if (s->state == _started)
sleep_on (&s->remove_ok);
schedule();
current->state = TASK_RUNNING;
remove_wait_queue(&s->wait, &__wait);
down (&s->mutex);
s->dev = NULL;
s->opened = 0;
......
drivers/usb/serial/kobil_sct.c
View file @ 659f7c1a
......@@ -651,7 +651,7 @@ static int kobil_ioctl(struct usb_serial_port *port, struct file *file,
return 0;
case TCSETS: // 0x5402
if (! &port->tty->termios) {
if (!(port->tty->termios)) {
dbg("%s - port %d Error: port->tty->termios is NULL", __FUNCTION__, port->number);
return -ENOTTY;
}
......
drivers/usb/serial/whiteheat.c
View file @ 659f7c1a
......@@ -353,8 +353,8 @@ static int whiteheat_attach (struct usb_serial *serial)
int pipe;
int ret;
int alen;
__u8 command[2] = { WHITEHEAT_GET_HW_INFO, 0 };
__u8 result[sizeof(*hw_info) + 1];
__u8 *command;
__u8 *result;
int i;
int j;
struct urb *urb;
......@@ -365,13 +365,22 @@ static int whiteheat_attach (struct usb_serial *serial)
command_port = serial->port[COMMAND_PORT];
pipe = usb_sndbulkpipe (serial->dev, command_port->bulk_out_endpointAddress);
command = kmalloc(2, GFP_KERNEL);
if (!command)
goto no_command_buffer;
command[0] = WHITEHEAT_GET_HW_INFO;
command[1] = 0;
result = kmalloc(sizeof(*hw_info) + 1, GFP_KERNEL);
if (!result)
goto no_result_buffer;
/*
* When the module is reloaded the firmware is still there and
* the endpoints are still in the usb core unchanged. This is the
* unlinking bug in disguise. Same for the call below.
*/
usb_clear_halt(serial->dev, pipe);
ret = usb_bulk_msg (serial->dev, pipe, command, sizeof(command), &alen, COMMAND_TIMEOUT);
ret = usb_bulk_msg (serial->dev, pipe, command, 2, &alen, COMMAND_TIMEOUT);
if (ret) {
err("%s: Couldn't send command [%d]", serial->type->name, ret);
goto no_firmware;
......@@ -383,7 +392,7 @@ static int whiteheat_attach (struct usb_serial *serial)
pipe = usb_rcvbulkpipe (serial->dev, command_port->bulk_in_endpointAddress);
/* See the comment on the usb_clear_halt() above */
usb_clear_halt(serial->dev, pipe);
ret = usb_bulk_msg (serial->dev, pipe, result, sizeof(result), &alen, COMMAND_TIMEOUT);
ret = usb_bulk_msg (serial->dev, pipe, result, sizeof(*hw_info) + 1, &alen, COMMAND_TIMEOUT);
if (ret) {
err("%s: Couldn't get results [%d]", serial->type->name, ret);
goto no_firmware;
......@@ -485,6 +494,8 @@ static int whiteheat_attach (struct usb_serial *serial)
usb_set_serial_port_data(command_port, command_info);
command_port->write_urb->complete = command_port_write_callback;
command_port->read_urb->complete = command_port_read_callback;
kfree(result);
kfree(command);
return 0;
......@@ -526,6 +537,10 @@ static int whiteheat_attach (struct usb_serial *serial)
no_private:
;
}
kfree(result);
no_result_buffer:
kfree(command);
no_command_buffer:
return -ENOMEM;
}
......
drivers/usb/storage/scsiglue.c
View file @ 659f7c1a
......@@ -309,44 +309,6 @@ static int proc_info (struct Scsi_Host *hostptr, char *buffer, char **start, off
* Sysfs interface
***********************************************************************/
/* Output routine for the sysfs info file */
static ssize_t show_info(struct device *dev, char *buffer)
{
char *pos = buffer;
const int length = PAGE_SIZE;
struct scsi_device *sdev = to_scsi_device(dev);
struct us_data *us = (struct us_data*)sdev->host->hostdata[0];
/* print the controller name */
SPRINTF(" Host scsi%d: usb-storage\n", sdev->host->host_no);
/* print product, vendor, and serial number strings */
SPRINTF(" Vendor: %s\n", us->vendor);
SPRINTF(" Product: %s\n", us->product);
SPRINTF("Serial Number: %s\n", us->serial);
/* show the protocol and transport */
SPRINTF(" Protocol: %s\n", us->protocol_name);
SPRINTF(" Transport: %s\n", us->transport_name);
/* show the device flags */
if (pos < buffer + length) {
pos += sprintf(pos, " Quirks:");
DO_FLAG(SINGLE_LUN);
DO_FLAG(SCM_MULT_TARG);
DO_FLAG(FIX_INQUIRY);
DO_FLAG(FIX_CAPACITY);
*(pos++) = '\n';
}
return (pos - buffer);
}
static DEVICE_ATTR(info, S_IRUGO, show_info, NULL);
/* Output routine for the sysfs max_sectors file */
static ssize_t show_max_sectors(struct device *dev, char *buf)
{
......@@ -373,7 +335,6 @@ static DEVICE_ATTR(max_sectors, S_IRUGO | S_IWUSR, show_max_sectors,
store_max_sectors);
static struct device_attribute *sysfs_device_attr_list[] = {
&dev_attr_info,
&dev_attr_max_sectors,
NULL,
};
......
drivers/usb/storage/unusual_devs.h
View file @ 659f7c1a
......@@ -115,6 +115,13 @@ UNUSUAL_DEV( 0x04a4, 0x0004, 0x0001, 0x0001,
"DVD-CAM DZ-MV100A Camcorder",
US_SC_SCSI, US_PR_CB, NULL, US_FL_SINGLE_LUN),
/* Reported by Simon Levitt <simon@whattf.com>
* This entry needs Sub and Proto fields */
UNUSUAL_DEV( 0x04b8, 0x0601, 0x0100, 0x0100,
"Epson",
"875DC Storage",
US_SC_SCSI, US_PR_CB, NULL, US_FL_FIX_INQUIRY),
/* Reported by Khalid Aziz <khalid@gonehiking.org>
* This entry is needed because the device reports Sub=ff */
UNUSUAL_DEV( 0x04b8, 0x0602, 0x0110, 0x0110,
......@@ -482,11 +489,6 @@ UNUSUAL_DEV( 0x07ab, 0xfc01, 0x0000, 0x9999,
"Freecom",
"USB-IDE",
US_SC_QIC, US_PR_FREECOM, freecom_init, 0),
UNUSUAL_DEV( 0x07ab, 0xfc84, 0x0000, 0x9999,
"Freecom",
"FX-5/FX-50",
US_SC_QIC, US_PR_FREECOM, freecom_init, 0),
#endif
UNUSUAL_DEV( 0x07af, 0x0004, 0x0100, 0x0133,
......
include/asm-ia64/uaccess.h
View file @ 659f7c1a
......@@ -28,7 +28,7 @@
*
* Based on <asm-alpha/uaccess.h>.
*
* Copyright (C) 1998, 1999, 2001-2003 Hewlett-Packard Co
* Copyright (C) 1998, 1999, 2001-2004 Hewlett-Packard Co
* David Mosberger-Tang <davidm@hpl.hp.com>
*/
......@@ -283,24 +283,23 @@ extern unsigned long __strnlen_user (const char *, long);
__su_ret; \
})
/* Generic code can't deal with the location-relative format that we use for compactness. */
#define ARCH_HAS_SORT_EXTABLE
#define ARCH_HAS_SEARCH_EXTABLE
struct exception_table_entry {
int addr; /* gp-relative address of insn this fixup is for */
int cont; /* gp-relative continuation address; if bit 2 is set, r9 is set to 0 */
int addr; /* location-relative address of insn this fixup is for */
int cont; /* location-relative continuation addr.; if bit 2 is set, r9 is set to 0 */
};
extern void handle_exception (struct pt_regs *regs, const struct exception_table_entry *e);
extern const struct exception_table_entry *search_exception_tables (unsigned long addr);
# define SEARCH_EXCEPTION_TABLE(regs) search_exception_tables(regs->cr_iip + ia64_psr(regs)->ri)
static inline int
done_with_exception (struct pt_regs *regs)
{
const struct exception_table_entry *e;
e = SEARCH_EXCEPTION_TABLE(regs);
e = search_exception_tables(regs->cr_iip + ia64_psr(regs)->ri);
if (e) {
handle_exception(regs, e);
return 1;
......
include/linux/usb.h
View file @ 659f7c1a
......@@ -856,7 +856,6 @@ extern int usb_bulk_msg(struct usb_device *usb_dev, unsigned int pipe,
/* wrappers around usb_control_msg() for the most common standard requests */
extern int usb_get_descriptor(struct usb_device *dev, unsigned char desctype,
unsigned char descindex, void *buf, int size);
extern int usb_get_device_descriptor(struct usb_device *dev);
extern int usb_get_status(struct usb_device *dev,
int type, int target, void *data);
extern int usb_get_string(struct usb_device *dev,
......
kernel/power/pmdisk.c
View file @ 659f7c1a
......@@ -28,6 +28,7 @@
#include <linux/device.h>
#include <linux/swapops.h>
#include <linux/bootmem.h>
#include <linux/utsname.h>
#include <asm/mmu_context.h>
......
kernel/sched.c
View file @ 659f7c1a
......@@ -124,9 +124,6 @@
(NS_TO_JIFFIES((p)->sleep_avg) * MAX_BONUS / \
MAX_SLEEP_AVG)
/* spinlock debugging needs this, even on !CONFIG_SMP */
spinlock_t kernel_flag __cacheline_aligned_in_smp = SPIN_LOCK_UNLOCKED;
#ifdef CONFIG_SMP
#define TIMESLICE_GRANULARITY(p) (MIN_TIMESLICE * \
(1 << (((MAX_BONUS - CURRENT_BONUS(p)) ? : 1) - 1)) * \
......@@ -2859,7 +2856,6 @@ __init int migration_init(void)
#endif
#if defined(CONFIG_SMP) || defined(CONFIG_PREEMPT)
/*
* The 'big kernel lock'
*
......@@ -2869,10 +2865,11 @@ __init int migration_init(void)
* been migrated to a proper locking design yet.
*
* Don't use in new code.
*
* Note: spinlock debugging needs this even on !CONFIG_SMP.
*/
spinlock_t kernel_flag __cacheline_aligned_in_smp = SPIN_LOCK_UNLOCKED;
EXPORT_SYMBOL(kernel_flag);
#endif
static void kstat_init_cpu(int cpu)
{
......
sound/usb/usbaudio.c
View file @ 659f7c1a
......@@ -33,6 +33,7 @@
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/usb.h>
#include <linux/usb_ch9.h>
#include <sound/core.h>
#include <sound/info.h>
#include <sound/pcm.h>
......@@ -2560,9 +2561,10 @@ static int snd_usb_extigy_boot_quirk(struct usb_device *dev, struct usb_interfac
err = usb_control_msg(dev, usb_sndctrlpipe(dev,0),
0x10, 0x43, 0x0001, 0x000a, NULL, 0, HZ);
if (err < 0) snd_printdd("error sending boot message: %d\n", err);
err = usb_get_device_descriptor(dev);
err = usb_get_descriptor(dev, USB_DT_DEVICE, 0,
&dev->descriptor, sizeof(dev->descriptor));
config = dev->actconfig;
if (err < 0) snd_printdd("error usb_get_device_descriptor: %d\n", err);
if (err < 0) snd_printdd("error usb_get_descriptor: %d\n", err);
err = usb_reset_configuration(dev);
if (err < 0) snd_printdd("error usb_reset_configuration: %d\n", err);
snd_printdd("extigy_boot: new boot length = %d\n", get_cfg_desc(config)->wTotalLength);
......
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