iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6

Browse Source 
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6:
  drivers: fix dma_get_required_mask
  firmware: provide stubs for the FW_LOADER=n case
  nozomi: fix initialization and early flow control access
  sysdev: fix problem with sysdev_class being re-registered
This commit is contained in:
Linus Torvalds 2008-03-10 18:04:00 -07:00
commit ee215ca3b2
4 changed files with 71 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/base/platform.c
View File

@ -648,7 +648,7 @@ u64 dma_get_required_mask(struct device *dev)
high_totalram += high_totalram - 1;
mask = (((u64)high_totalram) << 32) + 0xffffffff;
}
return mask & *dev->dma_mask;
return mask;
}
EXPORT_SYMBOL_GPL(dma_get_required_mask);
#endif

4
drivers/base/sys.c
View File

@ -133,6 +133,7 @@ int sysdev_class_register(struct sysdev_class * cls)
pr_debug("Registering sysdev class '%s'\n",
kobject_name(&cls->kset.kobj));
INIT_LIST_HEAD(&cls->drivers);
memset(&cls->kset.kobj, 0x00, sizeof(struct kobject));
cls->kset.kobj.parent = &system_kset->kobj;
cls->kset.kobj.ktype = &ktype_sysdev_class;
cls->kset.kobj.kset = system_kset;
@ -227,6 +228,9 @@ int sysdev_register(struct sys_device * sysdev)
pr_debug("Registering sys device '%s'\n", kobject_name(&sysdev->kobj));
/* initialize the kobject to 0, in case it had previously been used */
memset(&sysdev->kobj, 0x00, sizeof(struct kobject));
/* Make sure the kset is set */
sysdev->kobj.kset = &cls->kset;

61
drivers/char/nozomi.c
View File

@ -190,6 +190,14 @@ enum card_type {
F32_8 = 8192, /* 3072 bytes downl. + 1024 bytes uplink * 2 -> 8192 */
};
/* Initialization states a card can be in */
enum card_state {
NOZOMI_STATE_UKNOWN = 0,
NOZOMI_STATE_ENABLED = 1, /* pci device enabled */
NOZOMI_STATE_ALLOCATED = 2, /* config setup done */
NOZOMI_STATE_READY = 3, /* flowcontrols received */
};
/* Two different toggle channels exist */
enum channel_type {
CH_A = 0,
@ -385,6 +393,7 @@ struct nozomi {
spinlock_t spin_mutex; /* secures access to registers and tty */
unsigned int index_start;
enum card_state state;
u32 open_ttys;
};
@ -686,6 +695,7 @@ static int nozomi_read_config_table(struct nozomi *dc)
dc->last_ier = dc->last_ier | CTRL_DL;
writew(dc->last_ier, dc->reg_ier);
dc->state = NOZOMI_STATE_ALLOCATED;
dev_info(&dc->pdev->dev, "Initialization OK!\n");
return 1;
}
@ -944,6 +954,14 @@ static int receive_flow_control(struct nozomi *dc)
case CTRL_APP2:
port = PORT_APP2;
enable_ier = APP2_DL;
if (dc->state == NOZOMI_STATE_ALLOCATED) {
/*
* After card initialization the flow control
* received for APP2 is always the last
*/
dc->state = NOZOMI_STATE_READY;
dev_info(&dc->pdev->dev, "Device READY!\n");
}
break;
default:
dev_err(&dc->pdev->dev,
@ -1366,22 +1384,12 @@ static int __devinit nozomi_card_init(struct pci_dev *pdev,
dc->pdev = pdev;
/* Find out what card type it is */
nozomi_get_card_type(dc);
ret = pci_enable_device(dc->pdev);
if (ret) {
dev_err(&pdev->dev, "Failed to enable PCI Device\n");
goto err_free;
}
start = pci_resource_start(dc->pdev, 0);
if (start == 0) {
dev_err(&pdev->dev, "No I/O address for card detected\n");
ret = -ENODEV;
goto err_disable_device;
}
ret = pci_request_regions(dc->pdev, NOZOMI_NAME);
if (ret) {
dev_err(&pdev->dev, "I/O address 0x%04x already in use\n",
@ -1389,6 +1397,16 @@ static int __devinit nozomi_card_init(struct pci_dev *pdev,
goto err_disable_device;
}
start = pci_resource_start(dc->pdev, 0);
if (start == 0) {
dev_err(&pdev->dev, "No I/O address for card detected\n");
ret = -ENODEV;
goto err_rel_regs;
}
/* Find out what card type it is */
nozomi_get_card_type(dc);
dc->base_addr = ioremap(start, dc->card_type);
if (!dc->base_addr) {
dev_err(&pdev->dev, "Unable to map card MMIO\n");
@ -1425,6 +1443,14 @@ static int __devinit nozomi_card_init(struct pci_dev *pdev,
dc->index_start = ndev_idx * MAX_PORT;
ndevs[ndev_idx] = dc;
pci_set_drvdata(pdev, dc);
/* Enable RESET interrupt */
dc->last_ier = RESET;
iowrite16(dc->last_ier, dc->reg_ier);
dc->state = NOZOMI_STATE_ENABLED;
for (i = 0; i < MAX_PORT; i++) {
mutex_init(&dc->port[i].tty_sem);
dc->port[i].tty_open_count = 0;
@ -1433,12 +1459,6 @@ static int __devinit nozomi_card_init(struct pci_dev *pdev,
&pdev->dev);
}
/* Enable RESET interrupt. */
dc->last_ier = RESET;
writew(dc->last_ier, dc->reg_ier);
pci_set_drvdata(pdev, dc);
return 0;
err_free_sbuf:
@ -1553,7 +1573,7 @@ static int ntty_open(struct tty_struct *tty, struct file *file)
struct nozomi *dc = get_dc_by_tty(tty);
unsigned long flags;
if (!port || !dc)
if (!port || !dc || dc->state != NOZOMI_STATE_READY)
return -ENODEV;
if (mutex_lock_interruptible(&port->tty_sem))
@ -1716,6 +1736,10 @@ static int ntty_tiocmget(struct tty_struct *tty, struct file *file)
static int ntty_tiocmset(struct tty_struct *tty, struct file *file,
unsigned int set, unsigned int clear)
{
struct nozomi *dc = get_dc_by_tty(tty);
unsigned long flags;
spin_lock_irqsave(&dc->spin_mutex, flags);
if (set & TIOCM_RTS)
set_rts(tty, 1);
else if (clear & TIOCM_RTS)
@ -1725,6 +1749,7 @@ static int ntty_tiocmset(struct tty_struct *tty, struct file *file,
set_dtr(tty, 1);
else if (clear & TIOCM_DTR)
set_dtr(tty, 0);
spin_unlock_irqrestore(&dc->spin_mutex, flags);
return 0;
}
@ -1762,7 +1787,7 @@ static int ntty_ioctl_tiocgicount(struct port *port, void __user *argp)
icount.brk = cnow.brk;
icount.buf_overrun = cnow.buf_overrun;
return copy_to_user(argp, &icount, sizeof(icount));
return copy_to_user(argp, &icount, sizeof(icount)) ? -EFAULT : 0;
}
static int ntty_ioctl(struct tty_struct *tty, struct file *file,

23
include/linux/firmware.h
View File

@ -10,7 +10,10 @@ struct firmware {
size_t size;
u8 *data;
};
struct device;
#if defined(CONFIG_FW_LOADER) || defined(CONFIG_FW_LOADER_MODULE)
int request_firmware(const struct firmware **fw, const char *name,
struct device *device);
int request_firmware_nowait(
@ -19,4 +22,24 @@ int request_firmware_nowait(
void (*cont)(const struct firmware *fw, void *context));
void release_firmware(const struct firmware *fw);
#else
static inline int request_firmware(const struct firmware **fw,
const char *name,
struct device *device)
{
return -EINVAL;
}
static inline int request_firmware_nowait(
struct module *module, int uevent,
const char *name, struct device *device, void *context,
void (*cont)(const struct firmware *fw, void *context))
{
return -EINVAL;
}
static inline void release_firmware(const struct firmware *fw)
{
}
#endif
#endif