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Merge branch 'ep93xx-dma' into spi/next

hifive-unleashed-5.1
Grant Likely 2011-06-09 12:42:57 -06:00
parent c37f3c2749 626a96db11
commit e4c8308c85
169 changed files with 3494 additions and 1658 deletions
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10
Documentation/spi/ep93xx_spi
View File

@ -88,6 +88,16 @@ static void __init ts72xx_init_machine(void)
ARRAY_SIZE(ts72xx_spi_devices));
}
The driver can use DMA for the transfers also. In this case ts72xx_spi_info
becomes:
static struct ep93xx_spi_info ts72xx_spi_info = {
.num_chipselect = ARRAY_SIZE(ts72xx_spi_devices),
.use_dma = true;
};
Note that CONFIG_EP93XX_DMA should be enabled as well.
Thanks to
=========
Martin Guy, H. Hartley Sweeten and others who helped me during development of

2
Makefile
View File

@ -1,7 +1,7 @@
VERSION = 3
PATCHLEVEL = 0
SUBLEVEL = 0
EXTRAVERSION = -rc1
EXTRAVERSION = -rc2
NAME = Sneaky Weasel
# *DOCUMENTATION*

4
arch/arm/mach-ep93xx/Makefile
View File

@ -1,11 +1,13 @@
#
# Makefile for the linux kernel.
#
obj-y := core.o clock.o dma-m2p.o gpio.o
obj-y := core.o clock.o gpio.o
obj-m :=
obj-n :=
obj- :=
obj-$(CONFIG_EP93XX_DMA) += dma.o
obj-$(CONFIG_MACH_ADSSPHERE) += adssphere.o
obj-$(CONFIG_MACH_EDB93XX) += edb93xx.o
obj-$(CONFIG_MACH_GESBC9312) += gesbc9312.o

6
arch/arm/mach-ep93xx/core.c
View File

@ -488,11 +488,15 @@ static struct resource ep93xx_spi_resources[] = {
},
};
static u64 ep93xx_spi_dma_mask = DMA_BIT_MASK(32);
static struct platform_device ep93xx_spi_device = {
.name = "ep93xx-spi",
.id = 0,
.dev = {
.platform_data = &ep93xx_spi_master_data,
.platform_data = &ep93xx_spi_master_data,
.coherent_dma_mask = DMA_BIT_MASK(32),
.dma_mask = &ep93xx_spi_dma_mask,
},
.num_resources = ARRAY_SIZE(ep93xx_spi_resources),
.resource = ep93xx_spi_resources,

411
arch/arm/mach-ep93xx/dma-m2p.c
View File

@ -1,411 +0,0 @@
/*
* arch/arm/mach-ep93xx/dma-m2p.c
* M2P DMA handling for Cirrus EP93xx chips.
*
* Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
* Copyright (C) 2006 Applied Data Systems
*
* Copyright (C) 2009 Ryan Mallon <ryan@bluewatersys.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at
* your option) any later version.
*/
/*
* On the EP93xx chip the following peripherals my be allocated to the 10
* Memory to Internal Peripheral (M2P) channels (5 transmit + 5 receive).
*
* I2S contains 3 Tx and 3 Rx DMA Channels
* AAC contains 3 Tx and 3 Rx DMA Channels
* UART1 contains 1 Tx and 1 Rx DMA Channels
* UART2 contains 1 Tx and 1 Rx DMA Channels
* UART3 contains 1 Tx and 1 Rx DMA Channels
* IrDA contains 1 Tx and 1 Rx DMA Channels
*
* SSP and IDE use the Memory to Memory (M2M) channels and are not covered
* with this implementation.
*/
#define pr_fmt(fmt) "ep93xx " KBUILD_MODNAME ": " fmt
#include <linux/kernel.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/io.h>
#include <mach/dma.h>
#include <mach/hardware.h>
#define M2P_CONTROL 0x00
#define M2P_CONTROL_STALL_IRQ_EN (1 << 0)
#define M2P_CONTROL_NFB_IRQ_EN (1 << 1)
#define M2P_CONTROL_ERROR_IRQ_EN (1 << 3)
#define M2P_CONTROL_ENABLE (1 << 4)
#define M2P_INTERRUPT 0x04
#define M2P_INTERRUPT_STALL (1 << 0)
#define M2P_INTERRUPT_NFB (1 << 1)
#define M2P_INTERRUPT_ERROR (1 << 3)
#define M2P_PPALLOC 0x08
#define M2P_STATUS 0x0c
#define M2P_REMAIN 0x14
#define M2P_MAXCNT0 0x20
#define M2P_BASE0 0x24
#define M2P_MAXCNT1 0x30
#define M2P_BASE1 0x34
#define STATE_IDLE 0 /* Channel is inactive. */
#define STATE_STALL 1 /* Channel is active, no buffers pending. */
#define STATE_ON 2 /* Channel is active, one buffer pending. */
#define STATE_NEXT 3 /* Channel is active, two buffers pending. */
struct m2p_channel {
char *name;
void __iomem *base;
int irq;
struct clk *clk;
spinlock_t lock;
void *client;
unsigned next_slot:1;
struct ep93xx_dma_buffer *buffer_xfer;
struct ep93xx_dma_buffer *buffer_next;
struct list_head buffers_pending;
};
static struct m2p_channel m2p_rx[] = {
{"m2p1", EP93XX_DMA_BASE + 0x0040, IRQ_EP93XX_DMAM2P1},
{"m2p3", EP93XX_DMA_BASE + 0x00c0, IRQ_EP93XX_DMAM2P3},
{"m2p5", EP93XX_DMA_BASE + 0x0200, IRQ_EP93XX_DMAM2P5},
{"m2p7", EP93XX_DMA_BASE + 0x0280, IRQ_EP93XX_DMAM2P7},
{"m2p9", EP93XX_DMA_BASE + 0x0300, IRQ_EP93XX_DMAM2P9},
{NULL},
};
static struct m2p_channel m2p_tx[] = {
{"m2p0", EP93XX_DMA_BASE + 0x0000, IRQ_EP93XX_DMAM2P0},
{"m2p2", EP93XX_DMA_BASE + 0x0080, IRQ_EP93XX_DMAM2P2},
{"m2p4", EP93XX_DMA_BASE + 0x0240, IRQ_EP93XX_DMAM2P4},
{"m2p6", EP93XX_DMA_BASE + 0x02c0, IRQ_EP93XX_DMAM2P6},
{"m2p8", EP93XX_DMA_BASE + 0x0340, IRQ_EP93XX_DMAM2P8},
{NULL},
};
static void feed_buf(struct m2p_channel *ch, struct ep93xx_dma_buffer *buf)
{
if (ch->next_slot == 0) {
writel(buf->size, ch->base + M2P_MAXCNT0);
writel(buf->bus_addr, ch->base + M2P_BASE0);
} else {
writel(buf->size, ch->base + M2P_MAXCNT1);
writel(buf->bus_addr, ch->base + M2P_BASE1);
}
ch->next_slot ^= 1;
}
static void choose_buffer_xfer(struct m2p_channel *ch)
{
struct ep93xx_dma_buffer *buf;
ch->buffer_xfer = NULL;
if (!list_empty(&ch->buffers_pending)) {
buf = list_entry(ch->buffers_pending.next,
struct ep93xx_dma_buffer, list);
list_del(&buf->list);
feed_buf(ch, buf);
ch->buffer_xfer = buf;
}
}
static void choose_buffer_next(struct m2p_channel *ch)
{
struct ep93xx_dma_buffer *buf;
ch->buffer_next = NULL;
if (!list_empty(&ch->buffers_pending)) {
buf = list_entry(ch->buffers_pending.next,
struct ep93xx_dma_buffer, list);
list_del(&buf->list);
feed_buf(ch, buf);
ch->buffer_next = buf;
}
}
static inline void m2p_set_control(struct m2p_channel *ch, u32 v)
{
/*
* The control register must be read immediately after being written so
* that the internal state machine is correctly updated. See the ep93xx
* users' guide for details.
*/
writel(v, ch->base + M2P_CONTROL);
readl(ch->base + M2P_CONTROL);
}
static inline int m2p_channel_state(struct m2p_channel *ch)
{
return (readl(ch->base + M2P_STATUS) >> 4) & 0x3;
}
static irqreturn_t m2p_irq(int irq, void *dev_id)
{
struct m2p_channel *ch = dev_id;
struct ep93xx_dma_m2p_client *cl;
u32 irq_status, v;
int error = 0;
cl = ch->client;
spin_lock(&ch->lock);
irq_status = readl(ch->base + M2P_INTERRUPT);
if (irq_status & M2P_INTERRUPT_ERROR) {
writel(M2P_INTERRUPT_ERROR, ch->base + M2P_INTERRUPT);
error = 1;
}
if ((irq_status & (M2P_INTERRUPT_STALL | M2P_INTERRUPT_NFB)) == 0) {
spin_unlock(&ch->lock);
return IRQ_NONE;
}
switch (m2p_channel_state(ch)) {
case STATE_IDLE:
pr_crit("dma interrupt without a dma buffer\n");
BUG();
break;
case STATE_STALL:
cl->buffer_finished(cl->cookie, ch->buffer_xfer, 0, error);
if (ch->buffer_next != NULL) {
cl->buffer_finished(cl->cookie, ch->buffer_next,
0, error);
}
choose_buffer_xfer(ch);
choose_buffer_next(ch);
if (ch->buffer_xfer != NULL)
cl->buffer_started(cl->cookie, ch->buffer_xfer);
break;
case STATE_ON:
cl->buffer_finished(cl->cookie, ch->buffer_xfer, 0, error);
ch->buffer_xfer = ch->buffer_next;
choose_buffer_next(ch);
cl->buffer_started(cl->cookie, ch->buffer_xfer);
break;
case STATE_NEXT:
pr_crit("dma interrupt while next\n");
BUG();
break;
}
v = readl(ch->base + M2P_CONTROL) & ~(M2P_CONTROL_STALL_IRQ_EN |
M2P_CONTROL_NFB_IRQ_EN);
if (ch->buffer_xfer != NULL)
v |= M2P_CONTROL_STALL_IRQ_EN;
if (ch->buffer_next != NULL)
v |= M2P_CONTROL_NFB_IRQ_EN;
m2p_set_control(ch, v);
spin_unlock(&ch->lock);
return IRQ_HANDLED;
}
static struct m2p_channel *find_free_channel(struct ep93xx_dma_m2p_client *cl)
{
struct m2p_channel *ch;
int i;
if (cl->flags & EP93XX_DMA_M2P_RX)
ch = m2p_rx;
else
ch = m2p_tx;
for (i = 0; ch[i].base; i++) {
struct ep93xx_dma_m2p_client *client;
client = ch[i].client;
if (client != NULL) {
int port;
port = cl->flags & EP93XX_DMA_M2P_PORT_MASK;
if (port == (client->flags &
EP93XX_DMA_M2P_PORT_MASK)) {
pr_warning("DMA channel already used by %s\n",
cl->name ? : "unknown client");
return ERR_PTR(-EBUSY);
}
}
}
for (i = 0; ch[i].base; i++) {
if (ch[i].client == NULL)
return ch + i;
}
pr_warning("No free DMA channel for %s\n",
cl->name ? : "unknown client");
return ERR_PTR(-ENODEV);
}
static void channel_enable(struct m2p_channel *ch)
{
struct ep93xx_dma_m2p_client *cl = ch->client;
u32 v;
clk_enable(ch->clk);
v = cl->flags & EP93XX_DMA_M2P_PORT_MASK;
writel(v, ch->base + M2P_PPALLOC);
v = cl->flags & EP93XX_DMA_M2P_ERROR_MASK;
v |= M2P_CONTROL_ENABLE | M2P_CONTROL_ERROR_IRQ_EN;
m2p_set_control(ch, v);
}
static void channel_disable(struct m2p_channel *ch)
{
u32 v;
v = readl(ch->base + M2P_CONTROL);
v &= ~(M2P_CONTROL_STALL_IRQ_EN | M2P_CONTROL_NFB_IRQ_EN);
m2p_set_control(ch, v);
while (m2p_channel_state(ch) >= STATE_ON)
cpu_relax();
m2p_set_control(ch, 0x0);
while (m2p_channel_state(ch) == STATE_STALL)
cpu_relax();
clk_disable(ch->clk);
}
int ep93xx_dma_m2p_client_register(struct ep93xx_dma_m2p_client *cl)
{
struct m2p_channel *ch;
int err;
ch = find_free_channel(cl);
if (IS_ERR(ch))
return PTR_ERR(ch);
err = request_irq(ch->irq, m2p_irq, 0, cl->name ? : "dma-m2p", ch);
if (err)
return err;
ch->client = cl;
ch->next_slot = 0;
ch->buffer_xfer = NULL;
ch->buffer_next = NULL;
INIT_LIST_HEAD(&ch->buffers_pending);
cl->channel = ch;
channel_enable(ch);
return 0;
}
EXPORT_SYMBOL_GPL(ep93xx_dma_m2p_client_register);
void ep93xx_dma_m2p_client_unregister(struct ep93xx_dma_m2p_client *cl)
{
struct m2p_channel *ch = cl->channel;
channel_disable(ch);
free_irq(ch->irq, ch);
ch->client = NULL;
}
EXPORT_SYMBOL_GPL(ep93xx_dma_m2p_client_unregister);
void ep93xx_dma_m2p_submit(struct ep93xx_dma_m2p_client *cl,
struct ep93xx_dma_buffer *buf)
{
struct m2p_channel *ch = cl->channel;
unsigned long flags;
u32 v;
spin_lock_irqsave(&ch->lock, flags);
v = readl(ch->base + M2P_CONTROL);
if (ch->buffer_xfer == NULL) {
ch->buffer_xfer = buf;
feed_buf(ch, buf);
cl->buffer_started(cl->cookie, buf);
v |= M2P_CONTROL_STALL_IRQ_EN;
m2p_set_control(ch, v);
} else if (ch->buffer_next == NULL) {
ch->buffer_next = buf;
feed_buf(ch, buf);
v |= M2P_CONTROL_NFB_IRQ_EN;
m2p_set_control(ch, v);
} else {
list_add_tail(&buf->list, &ch->buffers_pending);
}
spin_unlock_irqrestore(&ch->lock, flags);
}
EXPORT_SYMBOL_GPL(ep93xx_dma_m2p_submit);
void ep93xx_dma_m2p_submit_recursive(struct ep93xx_dma_m2p_client *cl,
struct ep93xx_dma_buffer *buf)
{
struct m2p_channel *ch = cl->channel;
list_add_tail(&buf->list, &ch->buffers_pending);
}
EXPORT_SYMBOL_GPL(ep93xx_dma_m2p_submit_recursive);
void ep93xx_dma_m2p_flush(struct ep93xx_dma_m2p_client *cl)
{
struct m2p_channel *ch = cl->channel;
channel_disable(ch);
ch->next_slot = 0;
ch->buffer_xfer = NULL;
ch->buffer_next = NULL;
INIT_LIST_HEAD(&ch->buffers_pending);
channel_enable(ch);
}
EXPORT_SYMBOL_GPL(ep93xx_dma_m2p_flush);
static int init_channel(struct m2p_channel *ch)
{
ch->clk = clk_get(NULL, ch->name);
if (IS_ERR(ch->clk))
return PTR_ERR(ch->clk);
spin_lock_init(&ch->lock);
ch->client = NULL;
return 0;
}
static int __init ep93xx_dma_m2p_init(void)
{
int i;
int ret;
for (i = 0; m2p_rx[i].base; i++) {
ret = init_channel(m2p_rx + i);
if (ret)
return ret;
}
for (i = 0; m2p_tx[i].base; i++) {
ret = init_channel(m2p_tx + i);
if (ret)
return ret;
}
pr_info("M2P DMA subsystem initialized\n");
return 0;
}
arch_initcall(ep93xx_dma_m2p_init);

108
arch/arm/mach-ep93xx/dma.c 100644
View File

@ -0,0 +1,108 @@
/*
* arch/arm/mach-ep93xx/dma.c
*
* Platform support code for the EP93xx dmaengine driver.
*
* Copyright (C) 2011 Mika Westerberg
*
* This work is based on the original dma-m2p implementation with
* following copyrights:
*
* Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
* Copyright (C) 2006 Applied Data Systems
* Copyright (C) 2009 Ryan Mallon <rmallon@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at
* your option) any later version.
*/
#include <linux/dmaengine.h>
#include <linux/dma-mapping.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <mach/dma.h>
#include <mach/hardware.h>
#define DMA_CHANNEL(_name, _base, _irq) \
{ .name = (_name), .base = (_base), .irq = (_irq) }
/*
* DMA M2P channels.
*
* On the EP93xx chip the following peripherals my be allocated to the 10
* Memory to Internal Peripheral (M2P) channels (5 transmit + 5 receive).
*
* I2S contains 3 Tx and 3 Rx DMA Channels
* AAC contains 3 Tx and 3 Rx DMA Channels
* UART1 contains 1 Tx and 1 Rx DMA Channels
* UART2 contains 1 Tx and 1 Rx DMA Channels
* UART3 contains 1 Tx and 1 Rx DMA Channels
* IrDA contains 1 Tx and 1 Rx DMA Channels
*
* Registers are mapped statically in ep93xx_map_io().
*/
static struct ep93xx_dma_chan_data ep93xx_dma_m2p_channels[] = {
DMA_CHANNEL("m2p0", EP93XX_DMA_BASE + 0x0000, IRQ_EP93XX_DMAM2P0),
DMA_CHANNEL("m2p1", EP93XX_DMA_BASE + 0x0040, IRQ_EP93XX_DMAM2P1),
DMA_CHANNEL("m2p2", EP93XX_DMA_BASE + 0x0080, IRQ_EP93XX_DMAM2P2),
DMA_CHANNEL("m2p3", EP93XX_DMA_BASE + 0x00c0, IRQ_EP93XX_DMAM2P3),
DMA_CHANNEL("m2p4", EP93XX_DMA_BASE + 0x0240, IRQ_EP93XX_DMAM2P4),
DMA_CHANNEL("m2p5", EP93XX_DMA_BASE + 0x0200, IRQ_EP93XX_DMAM2P5),
DMA_CHANNEL("m2p6", EP93XX_DMA_BASE + 0x02c0, IRQ_EP93XX_DMAM2P6),
DMA_CHANNEL("m2p7", EP93XX_DMA_BASE + 0x0280, IRQ_EP93XX_DMAM2P7),
DMA_CHANNEL("m2p8", EP93XX_DMA_BASE + 0x0340, IRQ_EP93XX_DMAM2P8),
DMA_CHANNEL("m2p9", EP93XX_DMA_BASE + 0x0300, IRQ_EP93XX_DMAM2P9),
};
static struct ep93xx_dma_platform_data ep93xx_dma_m2p_data = {
.channels = ep93xx_dma_m2p_channels,
.num_channels = ARRAY_SIZE(ep93xx_dma_m2p_channels),
};
static struct platform_device ep93xx_dma_m2p_device = {
.name = "ep93xx-dma-m2p",
.id = -1,
.dev = {
.platform_data = &ep93xx_dma_m2p_data,
},
};
/*
* DMA M2M channels.
*
* There are 2 M2M channels which support memcpy/memset and in addition simple
* hardware requests from/to SSP and IDE. We do not implement an external
* hardware requests.
*
* Registers are mapped statically in ep93xx_map_io().
*/
static struct ep93xx_dma_chan_data ep93xx_dma_m2m_channels[] = {
DMA_CHANNEL("m2m0", EP93XX_DMA_BASE + 0x0100, IRQ_EP93XX_DMAM2M0),
DMA_CHANNEL("m2m1", EP93XX_DMA_BASE + 0x0140, IRQ_EP93XX_DMAM2M1),
};
static struct ep93xx_dma_platform_data ep93xx_dma_m2m_data = {
.channels = ep93xx_dma_m2m_channels,
.num_channels = ARRAY_SIZE(ep93xx_dma_m2m_channels),
};
static struct platform_device ep93xx_dma_m2m_device = {
.name = "ep93xx-dma-m2m",
.id = -1,
.dev = {
.platform_data = &ep93xx_dma_m2m_data,
},
};
static int __init ep93xx_dma_init(void)
{
platform_device_register(&ep93xx_dma_m2p_device);
platform_device_register(&ep93xx_dma_m2m_device);
return 0;
}
arch_initcall(ep93xx_dma_init);

192
arch/arm/mach-ep93xx/include/mach/dma.h
View File

@ -1,149 +1,93 @@
/**
* DOC: EP93xx DMA M2P memory to peripheral and peripheral to memory engine
*
* The EP93xx DMA M2P subsystem handles DMA transfers between memory and
* peripherals. DMA M2P channels are available for audio, UARTs and IrDA.
* See chapter 10 of the EP93xx users guide for full details on the DMA M2P
* engine.
*
* See sound/soc/ep93xx/ep93xx-pcm.c for an example use of the DMA M2P code.
*
*/
#ifndef __ASM_ARCH_DMA_H
#define __ASM_ARCH_DMA_H
#include <linux/list.h>
#include <linux/types.h>
/**
* struct ep93xx_dma_buffer - Information about a buffer to be transferred
* using the DMA M2P engine
*
* @list: Entry in DMA buffer list
* @bus_addr: Physical address of the buffer
* @size: Size of the buffer in bytes
*/
struct ep93xx_dma_buffer {
struct list_head list;
u32 bus_addr;
u16 size;
};
/**
* struct ep93xx_dma_m2p_client - Information about a DMA M2P client
*
* @name: Unique name for this client
* @flags: Client flags
* @cookie: User data to pass to callback functions
* @buffer_started: Non NULL function to call when a transfer is started.
* The arguments are the user data cookie and the DMA
* buffer which is starting.
* @buffer_finished: Non NULL function to call when a transfer is completed.
* The arguments are the user data cookie, the DMA buffer
* which has completed, and a boolean flag indicating if
* the transfer had an error.
*/
struct ep93xx_dma_m2p_client {
char *name;
u8 flags;
void *cookie;
void (*buffer_started)(void *cookie,
struct ep93xx_dma_buffer *buf);
void (*buffer_finished)(void *cookie,
struct ep93xx_dma_buffer *buf,
int bytes, int error);
/* private: Internal use only */
void *channel;
};
/* DMA M2P ports */
#define EP93XX_DMA_M2P_PORT_I2S1 0x00
#define EP93XX_DMA_M2P_PORT_I2S2 0x01
#define EP93XX_DMA_M2P_PORT_AAC1 0x02
#define EP93XX_DMA_M2P_PORT_AAC2 0x03
#define EP93XX_DMA_M2P_PORT_AAC3 0x04
#define EP93XX_DMA_M2P_PORT_I2S3 0x05
#define EP93XX_DMA_M2P_PORT_UART1 0x06
#define EP93XX_DMA_M2P_PORT_UART2 0x07
#define EP93XX_DMA_M2P_PORT_UART3 0x08
#define EP93XX_DMA_M2P_PORT_IRDA 0x09
#define EP93XX_DMA_M2P_PORT_MASK 0x0f
/* DMA M2P client flags */
#define EP93XX_DMA_M2P_TX 0x00 /* Memory to peripheral */
#define EP93XX_DMA_M2P_RX 0x10 /* Peripheral to memory */
#include <linux/dmaengine.h>
#include <linux/dma-mapping.h>
/*
* DMA M2P client error handling flags. See the EP93xx users guide
* documentation on the DMA M2P CONTROL register for more details
* M2P channels.
*
* Note that these values are also directly used for setting the PPALLOC
* register.
*/
#define EP93XX_DMA_M2P_ABORT_ON_ERROR 0x20 /* Abort on peripheral error */
#define EP93XX_DMA_M2P_IGNORE_ERROR 0x40 /* Ignore peripheral errors */
#define EP93XX_DMA_M2P_ERROR_MASK 0x60 /* Mask of error bits */
#define EP93XX_DMA_I2S1 0
#define EP93XX_DMA_I2S2 1
#define EP93XX_DMA_AAC1 2
#define EP93XX_DMA_AAC2 3
#define EP93XX_DMA_AAC3 4
#define EP93XX_DMA_I2S3 5
#define EP93XX_DMA_UART1 6
#define EP93XX_DMA_UART2 7
#define EP93XX_DMA_UART3 8
#define EP93XX_DMA_IRDA 9
/* M2M channels */
#define EP93XX_DMA_SSP 10
#define EP93XX_DMA_IDE 11
/**
* ep93xx_dma_m2p_client_register - Register a client with the DMA M2P
* subsystem
* struct ep93xx_dma_data - configuration data for the EP93xx dmaengine
* @port: peripheral which is requesting the channel
* @direction: TX/RX channel
* @name: optional name for the channel, this is displayed in /proc/interrupts
*
* @m2p: Client information to register
* returns 0 on success
*
* The DMA M2P subsystem allocates a channel and an interrupt line for the DMA
* client
* This information is passed as private channel parameter in a filter
* function. Note that this is only needed for slave/cyclic channels. For
* memcpy channels %NULL data should be passed.
*/
int ep93xx_dma_m2p_client_register(struct ep93xx_dma_m2p_client *m2p);
struct ep93xx_dma_data {
int port;
enum dma_data_direction direction;
const char *name;
};
/**
* ep93xx_dma_m2p_client_unregister - Unregister a client from the DMA M2P
* subsystem
*
* @m2p: Client to unregister
*
* Any transfers currently in progress will be completed in hardware, but
* ignored in software.
* struct ep93xx_dma_chan_data - platform specific data for a DMA channel
* @name: name of the channel, used for getting the right clock for the channel
* @base: mapped registers
* @irq: interrupt number used by this channel
*/
void ep93xx_dma_m2p_client_unregister(struct ep93xx_dma_m2p_client *m2p);
struct ep93xx_dma_chan_data {
const char *name;
void __iomem *base;
int irq;
};
/**
* ep93xx_dma_m2p_submit - Submit a DMA M2P transfer
*
* @m2p: DMA Client to submit the transfer on
* @buf: DMA Buffer to submit
*
* If the current or next transfer positions are free on the M2P client then
* the transfer is started immediately. If not, the transfer is added to the
* list of pending transfers. This function must not be called from the
* buffer_finished callback for an M2P channel.
* struct ep93xx_dma_platform_data - platform data for the dmaengine driver
* @channels: array of channels which are passed to the driver
* @num_channels: number of channels in the array
*
* This structure is passed to the DMA engine driver via platform data. For
* M2P channels, contract is that even channels are for TX and odd for RX.
* There is no requirement for the M2M channels.
*/
void ep93xx_dma_m2p_submit(struct ep93xx_dma_m2p_client *m2p,
struct ep93xx_dma_buffer *buf);
struct ep93xx_dma_platform_data {
struct ep93xx_dma_chan_data *channels;
size_t num_channels;
};
static inline bool ep93xx_dma_chan_is_m2p(struct dma_chan *chan)
{
return !strcmp(dev_name(chan->device->dev), "ep93xx-dma-m2p");
}
/**
* ep93xx_dma_m2p_submit_recursive - Put a DMA transfer on the pending list
* for an M2P channel
* ep93xx_dma_chan_direction - returns direction the channel can be used
* @chan: channel
*
* @m2p: DMA Client to submit the transfer on
* @buf: DMA Buffer to submit
*
* This function must only be called from the buffer_finished callback for an
* M2P channel. It is commonly used to add the next transfer in a chained list
* of DMA transfers.
* This function can be used in filter functions to find out whether the
* channel supports given DMA direction. Only M2P channels have such
* limitation, for M2M channels the direction is configurable.
*/
void ep93xx_dma_m2p_submit_recursive(struct ep93xx_dma_m2p_client *m2p,
struct ep93xx_dma_buffer *buf);
static inline enum dma_data_direction
ep93xx_dma_chan_direction(struct dma_chan *chan)
{
if (!ep93xx_dma_chan_is_m2p(chan))
return DMA_NONE;
/**
* ep93xx_dma_m2p_flush - Flush all pending transfers on a DMA M2P client
*
* @m2p: DMA client to flush transfers on
*
* Any transfers currently in progress will be completed in hardware, but
* ignored in software.
*
*/
void ep93xx_dma_m2p_flush(struct ep93xx_dma_m2p_client *m2p);
/* even channels are for TX, odd for RX */
return (chan->chan_id % 2 == 0) ? DMA_TO_DEVICE : DMA_FROM_DEVICE;
}
#endif /* __ASM_ARCH_DMA_H */

2
arch/arm/mach-ep93xx/include/mach/ep93xx_spi.h
View File

@ -7,9 +7,11 @@ struct spi_device;
* struct ep93xx_spi_info - EP93xx specific SPI descriptor
* @num_chipselect: number of chip selects on this board, must be
* at least one
* @use_dma: use DMA for the transfers
*/
struct ep93xx_spi_info {
int num_chipselect;
bool use_dma;
};
/**

56
arch/arm/mach-shmobile/board-ap4evb.c
View File

@ -249,6 +249,29 @@ static int slot_cn7_get_cd(struct platform_device *pdev)
{
return !gpio_get_value(GPIO_PORT41);
}
/* MERAM */
static struct sh_mobile_meram_info meram_info = {
.addr_mode = SH_MOBILE_MERAM_MODE1,
};
static struct resource meram_resources[] = {
[0] = {
.name = "MERAM",
.start = 0xe8000000,
.end = 0xe81fffff,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device meram_device = {
.name = "sh_mobile_meram",
.id = 0,
.num_resources = ARRAY_SIZE(meram_resources),
.resource = meram_resources,
.dev = {
.platform_data = &meram_info,
},
};
/* SH_MMCIF */
static struct resource sh_mmcif_resources[] = {
@ -447,13 +470,29 @@ const static struct fb_videomode ap4evb_lcdc_modes[] = {
#endif
},
};
static struct sh_mobile_meram_cfg lcd_meram_cfg = {
.icb[0] = {
.marker_icb = 28,
.cache_icb = 24,
.meram_offset = 0x0,
.meram_size = 0x40,
},
.icb[1] = {
.marker_icb = 29,
.cache_icb = 25,
.meram_offset = 0x40,
.meram_size = 0x40,
},
};
static struct sh_mobile_lcdc_info lcdc_info = {
.meram_dev = &meram_info,
.ch[0] = {
.chan = LCDC_CHAN_MAINLCD,
.bpp = 16,
.lcd_cfg = ap4evb_lcdc_modes,
.num_cfg = ARRAY_SIZE(ap4evb_lcdc_modes),
.meram_cfg = &lcd_meram_cfg,
}
};
@ -724,15 +763,31 @@ static struct platform_device fsi_device = {
static struct platform_device fsi_ak4643_device = {
.name = "sh_fsi2_a_ak4643",
};
static struct sh_mobile_meram_cfg hdmi_meram_cfg = {
.icb[0] = {
.marker_icb = 30,
.cache_icb = 26,
.meram_offset = 0x80,
.meram_size = 0x100,
},
.icb[1] = {
.marker_icb = 31,
.cache_icb = 27,
.meram_offset = 0x180,
.meram_size = 0x100,
},
};
static struct sh_mobile_lcdc_info sh_mobile_lcdc1_info = {
.clock_source = LCDC_CLK_EXTERNAL,
.meram_dev = &meram_info,
.ch[0] = {
.chan = LCDC_CHAN_MAINLCD,
.bpp = 16,
.interface_type = RGB24,
.clock_divider = 1,
.flags = LCDC_FLAGS_DWPOL,
.meram_cfg = &hdmi_meram_cfg,
}
};
@ -961,6 +1016,7 @@ static struct platform_device *ap4evb_devices[] __initdata = {
&csi2_device,
&ceu_device,
&ap4evb_camera,
&meram_device,
};
static void __init hdmi_init_pm_clock(void)

78
arch/arm/mach-shmobile/board-mackerel.c
View File

@ -39,6 +39,7 @@
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/pm_runtime.h>
#include <linux/smsc911x.h>
#include <linux/sh_intc.h>
#include <linux/tca6416_keypad.h>
@ -314,6 +315,30 @@ static struct platform_device smc911x_device = {
},
};
/* MERAM */
static struct sh_mobile_meram_info mackerel_meram_info = {
.addr_mode = SH_MOBILE_MERAM_MODE1,
};
static struct resource meram_resources[] = {
[0] = {
.name = "MERAM",
.start = 0xe8000000,
.end = 0xe81fffff,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device meram_device = {
.name = "sh_mobile_meram",
.id = 0,
.num_resources = ARRAY_SIZE(meram_resources),
.resource = meram_resources,
.dev = {
.platform_data = &mackerel_meram_info,
},
};
/* LCDC */
static struct fb_videomode mackerel_lcdc_modes[] = {
{
@ -342,7 +367,23 @@ static int mackerel_get_brightness(void *board_data)
return gpio_get_value(GPIO_PORT31);
}
static struct sh_mobile_meram_cfg lcd_meram_cfg = {
.icb[0] = {
.marker_icb = 28,
.cache_icb = 24,
.meram_offset = 0x0,
.meram_size = 0x40,
},
.icb[1] = {
.marker_icb = 29,
.cache_icb = 25,
.meram_offset = 0x40,
.meram_size = 0x40,
},
};
static struct sh_mobile_lcdc_info lcdc_info = {
.meram_dev = &mackerel_meram_info,
.clock_source = LCDC_CLK_BUS,
.ch[0] = {
.chan = LCDC_CHAN_MAINLCD,
@ -362,6 +403,7 @@ static struct sh_mobile_lcdc_info lcdc_info = {
.name = "sh_mobile_lcdc_bl",
.max_brightness = 1,
},
.meram_cfg = &lcd_meram_cfg,
}
};
@ -388,8 +430,23 @@ static struct platform_device lcdc_device = {
},
};
static struct sh_mobile_meram_cfg hdmi_meram_cfg = {
.icb[0] = {
.marker_icb = 30,
.cache_icb = 26,
.meram_offset = 0x80,
.meram_size = 0x100,
},
.icb[1] = {
.marker_icb = 31,
.cache_icb = 27,
.meram_offset = 0x180,
.meram_size = 0x100,
},
};
/* HDMI */
static struct sh_mobile_lcdc_info hdmi_lcdc_info = {
.meram_dev = &mackerel_meram_info,
.clock_source = LCDC_CLK_EXTERNAL,
.ch[0] = {
.chan = LCDC_CHAN_MAINLCD,
@ -397,6 +454,7 @@ static struct sh_mobile_lcdc_info hdmi_lcdc_info = {
.interface_type = RGB24,
.clock_divider = 1,
.flags = LCDC_FLAGS_DWPOL,
.meram_cfg = &hdmi_meram_cfg,
}
};
@ -856,6 +914,17 @@ static int slot_cn7_get_cd(struct platform_device *pdev)
}
/* SDHI0 */
static irqreturn_t mackerel_sdhi0_gpio_cd(int irq, void *arg)
{
struct device *dev = arg;
struct sh_mobile_sdhi_info *info = dev->platform_data;
struct tmio_mmc_data *pdata = info->pdata;
tmio_mmc_cd_wakeup(pdata);
return IRQ_HANDLED;
}
static struct sh_mobile_sdhi_info sdhi0_info = {
.dma_slave_tx = SHDMA_SLAVE_SDHI0_TX,
.dma_slave_rx = SHDMA_SLAVE_SDHI0_RX,
@ -1150,6 +1219,7 @@ static struct platform_device *mackerel_devices[] __initdata = {
&mackerel_camera,
&hdmi_lcdc_device,
&hdmi_device,
&meram_device,
};
/* Keypad Initialization */
@ -1238,6 +1308,7 @@ static void __init mackerel_init(void)
{
u32 srcr4;
struct clk *clk;
int ret;
sh7372_pinmux_init();
@ -1343,6 +1414,13 @@ static void __init mackerel_init(void)
gpio_request(GPIO_FN_SDHID0_1, NULL);
gpio_request(GPIO_FN_SDHID0_0, NULL);
ret = request_irq(evt2irq(0x3340), mackerel_sdhi0_gpio_cd,
IRQF_TRIGGER_FALLING, "sdhi0 cd", &sdhi0_device.dev);
if (!ret)
sdhi0_info.tmio_flags |= TMIO_MMC_HAS_COLD_CD;
else
pr_err("Cannot get IRQ #%d: %d\n", evt2irq(0x3340), ret);
#if !defined(CONFIG_MMC_SH_MMCIF) && !defined(CONFIG_MMC_SH_MMCIF_MODULE)
/* enable SDHI1 */
gpio_request(GPIO_FN_SDHICMD1, NULL);

7
arch/arm/mach-shmobile/clock-sh7372.c
View File

@ -509,6 +509,7 @@ enum { MSTP001,
MSTP118, MSTP117, MSTP116, MSTP113,
MSTP106, MSTP101, MSTP100,
MSTP223,
MSTP218, MSTP217, MSTP216,
MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200,
MSTP329, MSTP328, MSTP323, MSTP322, MSTP314, MSTP313, MSTP312,
MSTP423, MSTP415, MSTP413, MSTP411, MSTP410, MSTP406, MSTP403,
@ -534,6 +535,9 @@ static struct clk mstp_clks[MSTP_NR] = {
[MSTP101] = MSTP(&div4_clks[DIV4_M1], SMSTPCR1, 1, 0), /* VPU */
[MSTP100] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 0, 0), /* LCDC0 */
[MSTP223] = MSTP(&div6_clks[DIV6_SPU], SMSTPCR2, 23, 0), /* SPU2 */
[MSTP218] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 18, 0), /* DMAC1 */
[MSTP217] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 17, 0), /* DMAC2 */
[MSTP216] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 16, 0), /* DMAC3 */
[MSTP207] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 7, 0), /* SCIFA5 */
[MSTP206] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 6, 0), /* SCIFB */
[MSTP204] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 4, 0), /* SCIFA0 */
@ -626,6 +630,9 @@ static struct clk_lookup lookups[] = {
CLKDEV_DEV_ID("sh_mobile_lcdc_fb.0", &mstp_clks[MSTP100]), /* LCDC0 */
CLKDEV_DEV_ID("uio_pdrv_genirq.6", &mstp_clks[MSTP223]), /* SPU2DSP0 */
CLKDEV_DEV_ID("uio_pdrv_genirq.7", &mstp_clks[MSTP223]), /* SPU2DSP1 */
CLKDEV_DEV_ID("sh-dma-engine.0", &mstp_clks[MSTP218]), /* DMAC1 */
CLKDEV_DEV_ID("sh-dma-engine.1", &mstp_clks[MSTP217]), /* DMAC2 */
CLKDEV_DEV_ID("sh-dma-engine.2", &mstp_clks[MSTP216]), /* DMAC3 */
CLKDEV_DEV_ID("sh-sci.5", &mstp_clks[MSTP207]), /* SCIFA5 */
CLKDEV_DEV_ID("sh-sci.6", &mstp_clks[MSTP206]), /* SCIFB */
CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP204]), /* SCIFA0 */

4
arch/arm/mach-tegra/board-harmony-power.c
View File

@ -24,6 +24,8 @@
#include <mach/irqs.h>
#include "board-harmony.h"
#define PMC_CTRL 0x0
#define PMC_CTRL_INTR_LOW (1 << 17)
@ -98,7 +100,7 @@ static struct tps6586x_platform_data tps_platform = {
.irq_base = TEGRA_NR_IRQS,
.num_subdevs = ARRAY_SIZE(tps_devs),
.subdevs = tps_devs,
.gpio_base = TEGRA_NR_GPIOS,
.gpio_base = HARMONY_GPIO_TPS6586X(0),
};
static struct i2c_board_info __initdata harmony_regulators[] = {

3
arch/arm/mach-tegra/board-harmony.h
View File

@ -17,7 +17,8 @@
#ifndef _MACH_TEGRA_BOARD_HARMONY_H
#define _MACH_TEGRA_BOARD_HARMONY_H
#define HARMONY_GPIO_WM8903(_x_) (TEGRA_NR_GPIOS + (_x_))
#define HARMONY_GPIO_TPS6586X(_x_) (TEGRA_NR_GPIOS + (_x_))
#define HARMONY_GPIO_WM8903(_x_) (HARMONY_GPIO_TPS6586X(4) + (_x_))
#define TEGRA_GPIO_SD2_CD TEGRA_GPIO_PI5
#define TEGRA_GPIO_SD2_WP TEGRA_GPIO_PH1

2
arch/blackfin/lib/strncpy.S
View File

@ -25,7 +25,7 @@
ENTRY(_strncpy)
CC = R2 == 0;
if CC JUMP 4f;
if CC JUMP 6f;
P2 = R2 ; /* size */
P0 = R0 ; /* dst*/

2
arch/sh/Kconfig
View File

@ -161,7 +161,7 @@ config ARCH_HAS_CPU_IDLE_WAIT
config NO_IOPORT
def_bool !PCI
depends on !SH_CAYMAN && !SH_SH4202_MICRODEV
depends on !SH_CAYMAN && !SH_SH4202_MICRODEV && !SH_SHMIN
config IO_TRAPPED
bool

34
arch/sh/boards/mach-ap325rxa/setup.c
View File

@ -359,37 +359,31 @@ static struct soc_camera_link camera_link = {
.priv = &camera_info,
};
static void dummy_release(struct device *dev)
{
}
static struct platform_device *camera_device;
static struct platform_device camera_device = {
.name = "soc_camera_platform",
.dev = {
.platform_data = &camera_info,
.release = dummy_release,
},
};
static void ap325rxa_camera_release(struct device *dev)
{
soc_camera_platform_release(&camera_device);
}
static int ap325rxa_camera_add(struct soc_camera_link *icl,
struct device *dev)
{
if (icl != &camera_link || camera_probe() <= 0)
return -ENODEV;
int ret = soc_camera_platform_add(icl, dev, &camera_device, &camera_link,
ap325rxa_camera_release, 0);
if (ret < 0)
return ret;
camera_info.dev = dev;
ret = camera_probe();
if (ret < 0)
soc_camera_platform_del(icl, camera_device, &camera_link);
return platform_device_register(&camera_device);
return ret;
}
static void ap325rxa_camera_del(struct soc_camera_link *icl)
{
if (icl != &camera_link)
return;
platform_device_unregister(&camera_device);
memset(&camera_device.dev.kobj, 0,
sizeof(camera_device.dev.kobj));
soc_camera_platform_del(icl, camera_device, &camera_link);
}
#endif /* CONFIG_I2C */

3
arch/sh/boards/mach-ecovec24/setup.c
View File

@ -885,6 +885,9 @@ static struct platform_device sh_mmcif_device = {
},
.num_resources = ARRAY_SIZE(sh_mmcif_resources),
.resource = sh_mmcif_resources,
.archdata = {
.hwblk_id = HWBLK_MMC,
},
};
#endif

1
arch/sh/include/asm/pgtable.h
View File

@ -18,6 +18,7 @@
#include <asm/pgtable-2level.h>
#endif
#include <asm/page.h>
#include <asm/mmu.h>
#ifndef __ASSEMBLY__
#include <asm/addrspace.h>

6
arch/sh/include/asm/ptrace.h
View File

@ -41,7 +41,9 @@
#define user_mode(regs) (((regs)->sr & 0x40000000)==0)
#define kernel_stack_pointer(_regs) ((unsigned long)(_regs)->regs[15])
#define GET_USP(regs) ((regs)->regs[15])
#define GET_FP(regs) ((regs)->regs[14])
#define GET_USP(regs) ((regs)->regs[15])
extern void show_regs(struct pt_regs *);
@ -131,7 +133,7 @@ extern void ptrace_triggered(struct perf_event *bp, int nmi,
static inline unsigned long profile_pc(struct pt_regs *regs)
{
unsigned long pc = instruction_pointer(regs);
unsigned long pc = regs->pc;
if (virt_addr_uncached(pc))
return CAC_ADDR(pc);

1
arch/sh/include/asm/tlb.h
View File

@ -9,6 +9,7 @@
#include <linux/pagemap.h>
#ifdef CONFIG_MMU
#include <linux/swap.h>
#include <asm/pgalloc.h>
#include <asm/tlbflush.h>
#include <asm/mmu_context.h>

1
arch/sh/include/cpu-sh4/cpu/sh7722.h
View File

@ -236,6 +236,7 @@ enum {
};
enum {
SHDMA_SLAVE_INVALID,
SHDMA_SLAVE_SCIF0_TX,
SHDMA_SLAVE_SCIF0_RX,
SHDMA_SLAVE_SCIF1_TX,

1
arch/sh/include/cpu-sh4/cpu/sh7724.h
View File

@ -285,6 +285,7 @@ enum {
};
enum {
SHDMA_SLAVE_INVALID,
SHDMA_SLAVE_SCIF0_TX,
SHDMA_SLAVE_SCIF0_RX,
SHDMA_SLAVE_SCIF1_TX,

1
arch/sh/include/cpu-sh4/cpu/sh7757.h
View File

@ -252,6 +252,7 @@ enum {
};
enum {
SHDMA_SLAVE_INVALID,
SHDMA_SLAVE_SDHI_TX,
SHDMA_SLAVE_SDHI_RX,
SHDMA_SLAVE_MMCIF_TX,

1
arch/sh/kernel/process_32.c
View File

@ -21,6 +21,7 @@
#include <linux/fs.h>
#include <linux/ftrace.h>
#include <linux/hw_breakpoint.h>
#include <linux/prefetch.h>
#include <asm/uaccess.h>
#include <asm/mmu_context.h>
#include <asm/system.h>

2
arch/sh/mm/consistent.c
View File

@ -82,7 +82,7 @@ void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
void *addr;
addr = __in_29bit_mode() ?
(void *)P1SEGADDR((unsigned long)vaddr) : vaddr;
(void *)CAC_ADDR((unsigned long)vaddr) : vaddr;
switch (direction) {
case DMA_FROM_DEVICE: /* invalidate only */

4
block/blk-ioc.c
View File

@ -21,7 +21,7 @@ static void cfq_dtor(struct io_context *ioc)
if (!hlist_empty(&ioc->cic_list)) {
struct cfq_io_context *cic;
cic = list_entry(ioc->cic_list.first, struct cfq_io_context,
cic = hlist_entry(ioc->cic_list.first, struct cfq_io_context,
cic_list);
cic->dtor(ioc);
}
@ -57,7 +57,7 @@ static void cfq_exit(struct io_context *ioc)
if (!hlist_empty(&ioc->cic_list)) {
struct cfq_io_context *cic;
cic = list_entry(ioc->cic_list.first, struct cfq_io_context,
cic = hlist_entry(ioc->cic_list.first, struct cfq_io_context,
cic_list);
cic->exit(ioc);
}

11
block/cfq-iosched.c
View File

@ -185,7 +185,7 @@ struct cfq_group {
int nr_cfqq;
/*
* Per group busy queus average. Useful for workload slice calc. We
* Per group busy queues average. Useful for workload slice calc. We
* create the array for each prio class but at run time it is used
* only for RT and BE class and slot for IDLE class remains unused.
* This is primarily done to avoid confusion and a gcc warning.
@ -369,16 +369,16 @@ CFQ_CFQQ_FNS(wait_busy);
#define cfq_log_cfqq(cfqd, cfqq, fmt, args...) \
blk_add_trace_msg((cfqd)->queue, "cfq%d%c %s " fmt, (cfqq)->pid, \
cfq_cfqq_sync((cfqq)) ? 'S' : 'A', \
blkg_path(&(cfqq)->cfqg->blkg), ##args);
blkg_path(&(cfqq)->cfqg->blkg), ##args)
#define cfq_log_cfqg(cfqd, cfqg, fmt, args...) \
blk_add_trace_msg((cfqd)->queue, "%s " fmt, \
blkg_path(&(cfqg)->blkg), ##args); \
blkg_path(&(cfqg)->blkg), ##args) \
#else
#define cfq_log_cfqq(cfqd, cfqq, fmt, args...) \
blk_add_trace_msg((cfqd)->queue, "cfq%d " fmt, (cfqq)->pid, ##args)
#define cfq_log_cfqg(cfqd, cfqg, fmt, args...) do {} while (0);
#define cfq_log_cfqg(cfqd, cfqg, fmt, args...) do {} while (0)
#endif
#define cfq_log(cfqd, fmt, args...) \
blk_add_trace_msg((cfqd)->queue, "cfq " fmt, ##args)
@ -3786,9 +3786,6 @@ new_queue:
return 0;
queue_fail:
if (cic)
put_io_context(cic->ioc);
cfq_schedule_dispatch(cfqd);
spin_unlock_irqrestore(q->queue_lock, flags);
cfq_log(cfqd, "set_request fail");

22
drivers/block/nbd.c
View File

@ -192,7 +192,8 @@ static int sock_xmit(struct nbd_device *lo, int send, void *buf, int size,
if (lo->xmit_timeout)
del_timer_sync(&ti);
} else
result = kernel_recvmsg(sock, &msg, &iov, 1, size, 0);
result = kernel_recvmsg(sock, &msg, &iov, 1, size,
msg.msg_flags);
if (signal_pending(current)) {
siginfo_t info;
@ -753,9 +754,26 @@ static int __init nbd_init(void)
return -ENOMEM;
part_shift = 0;
if (max_part > 0)
if (max_part > 0) {
part_shift = fls(max_part);
/*
* Adjust max_part according to part_shift as it is exported
* to user space so that user can know the max number of
* partition kernel should be able to manage.
*
* Note that -1 is required because partition 0 is reserved
* for the whole disk.
*/
max_part = (1UL << part_shift) - 1;
}
if ((1UL << part_shift) > DISK_MAX_PARTS)
return -EINVAL;
if (nbds_max > 1UL << (MINORBITS - part_shift))
return -EINVAL;
for (i = 0; i < nbds_max; i++) {
struct gendisk *disk = alloc_disk(1 << part_shift);
if (!disk)

10
drivers/block/xen-blkback/blkback.c
View File

@ -809,11 +809,13 @@ static int __init xen_blkif_init(void)
failed_init:
kfree(blkbk->pending_reqs);
kfree(blkbk->pending_grant_handles);
for (i = 0; i < mmap_pages; i++) {
if (blkbk->pending_pages[i])
__free_page(blkbk->pending_pages[i]);
if (blkbk->pending_pages) {
for (i = 0; i < mmap_pages; i++) {
if (blkbk->pending_pages[i])
__free_page(blkbk->pending_pages[i]);
}
kfree(blkbk->pending_pages);
}
kfree(blkbk->pending_pages);
kfree(blkbk);
blkbk = NULL;
return rc;

3
drivers/block/xen-blkback/xenbus.c
View File

@ -357,14 +357,13 @@ static int xen_vbd_create(struct xen_blkif *blkif, blkif_vdev_t handle,
}
vbd->bdev = bdev;
vbd->size = vbd_sz(vbd);
if (vbd->bdev->bd_disk == NULL) {
DPRINTK("xen_vbd_create: device %08x doesn't exist.\n",
vbd->pdevice);
xen_vbd_free(vbd);
return -ENOENT;
}
vbd->size = vbd_sz(vbd);
if (vbd->bdev->bd_disk->flags & GENHD_FL_CD || cdrom)
vbd->type |= VDISK_CDROM;

17
drivers/bluetooth/hci_ldisc.c
View File

@ -355,29 +355,24 @@ static void hci_uart_tty_wakeup(struct tty_struct *tty)
* flags pointer to flags for data
* count count of received data in bytes
*
* Return Value: Number of bytes received
* Return Value: None
*/
static unsigned int hci_uart_tty_receive(struct tty_struct *tty,
const u8 *data, char *flags, int count)
static void hci_uart_tty_receive(struct tty_struct *tty, const u8 *data, char *flags, int count)
{
struct hci_uart *hu = (void *)tty->disc_data;
int received;
if (!hu || tty != hu->tty)
return -ENODEV;
return;
if (!test_bit(HCI_UART_PROTO_SET, &hu->flags))
return -EINVAL;
return;
spin_lock(&hu->rx_lock);
received = hu->proto->recv(hu, (void *) data, count);
if (received > 0)
hu->hdev->stat.byte_rx += received;
hu->proto->recv(hu, (void *) data, count);
hu->hdev->stat.byte_rx += count;
spin_unlock(&hu->rx_lock);
tty_unthrottle(tty);
return received;
}
static int hci_uart_register_dev(struct hci_uart *hu)

12
drivers/clocksource/sh_cmt.c
View File

@ -24,7 +24,6 @@
#include <linux/ioport.h>
#include <linux/io.h>
#include <linux/clk.h>
#include <linux/pm_runtime.h>
#include <linux/irq.h>
#include <linux/err.h>
#include <linux/clocksource.h>
@ -153,12 +152,10 @@ static int sh_cmt_enable(struct sh_cmt_priv *p, unsigned long *rate)
{
int ret;
/* wake up device and enable clock */
pm_runtime_get_sync(&p->pdev->dev);
/* enable clock */
ret = clk_enable(p->clk);
if (ret) {
dev_err(&p->pdev->dev, "cannot enable clock\n");
pm_runtime_put_sync(&p->pdev->dev);
return ret;
}
@ -190,9 +187,8 @@ static void sh_cmt_disable(struct sh_cmt_priv *p)
/* disable interrupts in CMT block */
sh_cmt_write(p, CMCSR, 0);
/* stop clock and mark device as idle */
/* stop clock */
clk_disable(p->clk);
pm_runtime_put_sync(&p->pdev->dev);
}
/* private flags */
@ -664,7 +660,6 @@ static int __devinit sh_cmt_probe(struct platform_device *pdev)
if (p) {
dev_info(&pdev->dev, "kept as earlytimer\n");
pm_runtime_enable(&pdev->dev);
return 0;
}
@ -679,9 +674,6 @@ static int __devinit sh_cmt_probe(struct platform_device *pdev)
kfree(p);
platform_set_drvdata(pdev, NULL);
}
if (!is_early_platform_device(pdev))
pm_runtime_enable(&pdev->dev);
return ret;
}

12
drivers/clocksource/sh_tmu.c
View File

@ -25,7 +25,6 @@
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/clk.h>
#include <linux/pm_runtime.h>
#include <linux/irq.h>
#include <linux/err.h>
#include <linux/clocksource.h>
@ -110,12 +109,10 @@ static int sh_tmu_enable(struct sh_tmu_priv *p)
{
int ret;
/* wake up device and enable clock */
pm_runtime_get_sync(&p->pdev->dev);
/* enable clock */
ret = clk_enable(p->clk);
if (ret) {
dev_err(&p->pdev->dev, "cannot enable clock\n");
pm_runtime_put_sync(&p->pdev->dev);
return ret;
}
@ -144,9 +141,8 @@ static void sh_tmu_disable(struct sh_tmu_priv *p)
/* disable interrupts in TMU block */
sh_tmu_write(p, TCR, 0x0000);
/* stop clock and mark device as idle */
/* stop clock */
clk_disable(p->clk);
pm_runtime_put_sync(&p->pdev->dev);
}
static void sh_tmu_set_next(struct sh_tmu_priv *p, unsigned long delta,
@ -415,7 +411,6 @@ static int __devinit sh_tmu_probe(struct platform_device *pdev)
if (p) {
dev_info(&pdev->dev, "kept as earlytimer\n");
pm_runtime_enable(&pdev->dev);
return 0;
}
@ -430,9 +425,6 @@ static int __devinit sh_tmu_probe(struct platform_device *pdev)
kfree(p);
platform_set_drvdata(pdev, NULL);
}
if (!is_early_platform_device(pdev))
pm_runtime_enable(&pdev->dev);
return ret;
}

7
drivers/dma/Kconfig
View File

@ -237,6 +237,13 @@ config MXS_DMA
Support the MXS DMA engine. This engine including APBH-DMA
and APBX-DMA is integrated into Freescale i.MX23/28 chips.
config EP93XX_DMA
bool "Cirrus Logic EP93xx DMA support"
depends on ARCH_EP93XX
select DMA_ENGINE
help
Enable support for the Cirrus Logic EP93xx M2P/M2M DMA controller.
config DMA_ENGINE
bool

1
drivers/dma/Makefile
View File

@ -25,3 +25,4 @@ obj-$(CONFIG_STE_DMA40) += ste_dma40.o ste_dma40_ll.o
obj-$(CONFIG_PL330_DMA) += pl330.o
obj-$(CONFIG_PCH_DMA) += pch_dma.o
obj-$(CONFIG_AMBA_PL08X) += amba-pl08x.o
obj-$(CONFIG_EP93XX_DMA) += ep93xx_dma.o

1355
drivers/dma/ep93xx_dma.c 100644
View File

File diff suppressed because it is too large Load Diff

9
drivers/dma/shdma.c
View File

@ -343,7 +343,7 @@ static int sh_dmae_alloc_chan_resources(struct dma_chan *chan)
dmae_set_dmars(sh_chan, cfg->mid_rid);
dmae_set_chcr(sh_chan, cfg->chcr);
} else if ((sh_dmae_readl(sh_chan, CHCR) & 0xf00) != 0x400) {
} else {
dmae_init(sh_chan);
}
@ -1144,6 +1144,8 @@ static int __init sh_dmae_probe(struct platform_device *pdev)
/* platform data */
shdev->pdata = pdata;
platform_set_drvdata(pdev, shdev);
pm_runtime_enable(&pdev->dev);
pm_runtime_get_sync(&pdev->dev);
@ -1256,7 +1258,6 @@ static int __init sh_dmae_probe(struct platform_device *pdev)
pm_runtime_put(&pdev->dev);
platform_set_drvdata(pdev, shdev);
dma_async_device_register(&shdev->common);
return err;
@ -1278,6 +1279,8 @@ rst_err:
if (dmars)
iounmap(shdev->dmars);
platform_set_drvdata(pdev, NULL);
emapdmars:
iounmap(shdev->chan_reg);
synchronize_rcu();
@ -1316,6 +1319,8 @@ static int __exit sh_dmae_remove(struct platform_device *pdev)
iounmap(shdev->dmars);
iounmap(shdev->chan_reg);
platform_set_drvdata(pdev, NULL);
synchronize_rcu();
kfree(shdev);

23
drivers/hwmon/coretemp.c
View File

@ -296,7 +296,7 @@ static int get_tjmax(struct cpuinfo_x86 *c, u32 id, struct device *dev)
* If the TjMax is not plausible, an assumption
* will be used
*/
if (val > 80 && val < 120) {
if (val) {
dev_info(dev, "TjMax is %d C.\n", val);
return val * 1000;
}
@ -304,24 +304,9 @@ static int get_tjmax(struct cpuinfo_x86 *c, u32 id, struct device *dev)
/*
* An assumption is made for early CPUs and unreadable MSR.
* NOTE: the given value may not be correct.
* NOTE: the calculated value may not be correct.
*/
switch (c->x86_model) {
case 0xe:
case 0xf:
case 0x16:
case 0x1a:
dev_warn(dev, "TjMax is assumed as 100 C!\n");
return 100000;
case 0x17:
case 0x1c: /* Atom CPUs */
return adjust_tjmax(c, id, dev);
default:
dev_warn(dev, "CPU (model=0x%x) is not supported yet,"
" using default TjMax of 100C.\n", c->x86_model);
return 100000;
}
return adjust_tjmax(c, id, dev);
}
static void __devinit get_ucode_rev_on_cpu(void *edx)
@ -341,7 +326,7 @@ static int get_pkg_tjmax(unsigned int cpu, struct device *dev)
err = rdmsr_safe_on_cpu(cpu, MSR_IA32_TEMPERATURE_TARGET, &eax, &edx);
if (!err) {
val = (eax >> 16) & 0xff;
if (val > 80 && val < 120)
if (val)
return val * 1000;
}
dev_warn(dev, "Unable to read Pkg-TjMax from CPU:%u\n", cpu);

22
drivers/hwmon/max6642.c
View File

@ -136,15 +136,29 @@ static int max6642_detect(struct i2c_client *client,
if (man_id != 0x4D)
return -ENODEV;
/* sanity check */
if (i2c_smbus_read_byte_data(client, 0x04) != 0x4D
|| i2c_smbus_read_byte_data(client, 0x06) != 0x4D
|| i2c_smbus_read_byte_data(client, 0xff) != 0x4D)
return -ENODEV;
/*
* We read the config and status register, the 4 lower bits in the
* config register should be zero and bit 5, 3, 1 and 0 should be
* zero in the status register.
*/
reg_config = i2c_smbus_read_byte_data(client, MAX6642_REG_R_CONFIG);
if ((reg_config & 0x0f) != 0x00)
return -ENODEV;
/* in between, another round of sanity checks */
if (i2c_smbus_read_byte_data(client, 0x04) != reg_config
|| i2c_smbus_read_byte_data(client, 0x06) != reg_config
|| i2c_smbus_read_byte_data(client, 0xff) != reg_config)
return -ENODEV;
reg_status = i2c_smbus_read_byte_data(client, MAX6642_REG_R_STATUS);
if (((reg_config & 0x0f) != 0x00) ||
((reg_status & 0x2b) != 0x00))
if ((reg_status & 0x2b) != 0x00)
return -ENODEV;
strlcpy(info->type, "max6642", I2C_NAME_SIZE);
@ -246,7 +260,7 @@ static SENSOR_DEVICE_ATTR_2(temp1_max, S_IWUSR | S_IRUGO, show_temp_max,
set_temp_max, 0, MAX6642_REG_W_LOCAL_HIGH);
static SENSOR_DEVICE_ATTR_2(temp2_max, S_IWUSR | S_IRUGO, show_temp_max,
set_temp_max, 1, MAX6642_REG_W_REMOTE_HIGH);
static SENSOR_DEVICE_ATTR(temp_fault, S_IRUGO, show_alarm, NULL, 2);
static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_alarm, NULL, 2);
static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 6);
static SENSOR_DEVICE_ATTR(temp2_max_alarm, S_IRUGO, show_alarm, NULL, 4);
@ -256,7 +270,7 @@ static struct attribute *max6642_attributes[] = {
&sensor_dev_attr_temp1_max.dev_attr.attr,
&sensor_dev_attr_temp2_max.dev_attr.attr,
&sensor_dev_attr_temp_fault.dev_attr.attr,
&sensor_dev_attr_temp2_fault.dev_attr.attr,
&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
&sensor_dev_attr_temp2_max_alarm.dev_attr.attr,
NULL

10
drivers/input/serio/serport.c
View File

@ -120,21 +120,17 @@ static void serport_ldisc_close(struct tty_struct *tty)
* 'interrupt' routine.
*/
static unsigned int serport_ldisc_receive(struct tty_struct *tty,
const unsigned char *cp, char *fp, int count)
static void serport_ldisc_receive(struct tty_struct *tty, const unsigned char *cp, char *fp, int count)
{
struct serport *serport = (struct serport*) tty->disc_data;
unsigned long flags;
unsigned int ch_flags;
int ret = 0;
int i;
spin_lock_irqsave(&serport->lock, flags);
if (!test_bit(SERPORT_ACTIVE, &serport->flags)) {
ret = -EINVAL;
if (!test_bit(SERPORT_ACTIVE, &serport->flags))
goto out;
}
for (i = 0; i < count; i++) {
switch (fp[i]) {
@ -156,8 +152,6 @@ static unsigned int serport_ldisc_receive(struct tty_struct *tty,
out:
spin_unlock_irqrestore(&serport->lock, flags);
return ret == 0 ? count : ret;
}
/*

8
drivers/isdn/gigaset/ser-gigaset.c
View File

@ -674,7 +674,7 @@ gigaset_tty_ioctl(struct tty_struct *tty, struct file *file,
* cflags buffer containing error flags for received characters (ignored)
* count number of received characters
*/
static unsigned int
static void
gigaset_tty_receive(struct tty_struct *tty, const unsigned char *buf,
char *cflags, int count)
{
@ -683,12 +683,12 @@ gigaset_tty_receive(struct tty_struct *tty, const unsigned char *buf,
struct inbuf_t *inbuf;
if (!cs)
return -ENODEV;
return;
inbuf = cs->inbuf;
if (!inbuf) {
dev_err(cs->dev, "%s: no inbuf\n", __func__);
cs_put(cs);
return -EINVAL;
return;
}
tail = inbuf->tail;
@ -725,8 +725,6 @@ gigaset_tty_receive(struct tty_struct *tty, const unsigned char *buf,
gig_dbg(DEBUG_INTR, "%s-->BH", __func__);
gigaset_schedule_event(cs);
cs_put(cs);
return count;
}
/*

6
drivers/misc/ti-st/st_core.c
View File

@ -747,8 +747,8 @@ static void st_tty_close(struct tty_struct *tty)
pr_debug("%s: done ", __func__);
}
static unsigned int st_tty_receive(struct tty_struct *tty,
const unsigned char *data, char *tty_flags, int count)
static void st_tty_receive(struct tty_struct *tty, const unsigned char *data,
char *tty_flags, int count)
{
#ifdef VERBOSE
print_hex_dump(KERN_DEBUG, ">in>", DUMP_PREFIX_NONE,
@ -761,8 +761,6 @@ static unsigned int st_tty_receive(struct tty_struct *tty,
*/
st_recv(tty->disc_data, data, count);
pr_debug("done %s", __func__);
return count;
}
/* wake-up function called in from the TTY layer

14
drivers/net/3c509.c
View File

@ -185,7 +185,7 @@ static int max_interrupt_work = 10;
static int nopnp;
#endif
static int el3_common_init(struct net_device *dev);
static int __devinit el3_common_init(struct net_device *dev);
static void el3_common_remove(struct net_device *dev);
static ushort id_read_eeprom(int index);
static ushort read_eeprom(int ioaddr, int index);
@ -395,7 +395,7 @@ static struct isa_driver el3_isa_driver = {
static int isa_registered;
#ifdef CONFIG_PNP
static const struct pnp_device_id el3_pnp_ids[] __devinitconst = {
static struct pnp_device_id el3_pnp_ids[] = {
{ .id = "TCM5090" }, /* 3Com Etherlink III (TP) */
{ .id = "TCM5091" }, /* 3Com Etherlink III */
{ .id = "TCM5094" }, /* 3Com Etherlink III (combo) */
@ -478,7 +478,7 @@ static int pnp_registered;
#endif /* CONFIG_PNP */
#ifdef CONFIG_EISA
static const struct eisa_device_id el3_eisa_ids[] __devinitconst = {
static struct eisa_device_id el3_eisa_ids[] = {
{ "TCM5090" },
{ "TCM5091" },
{ "TCM5092" },
@ -508,7 +508,7 @@ static int eisa_registered;
#ifdef CONFIG_MCA
static int el3_mca_probe(struct device *dev);
static const short el3_mca_adapter_ids[] __devinitconst = {
static short el3_mca_adapter_ids[] __initdata = {
0x627c,
0x627d,
0x62db,
@ -517,7 +517,7 @@ static const short el3_mca_adapter_ids[] __devinitconst = {
0x0000
};
static const char *const el3_mca_adapter_names[] __devinitconst = {
static char *el3_mca_adapter_names[] __initdata = {
"3Com 3c529 EtherLink III (10base2)",
"3Com 3c529 EtherLink III (10baseT)",
"3Com 3c529 EtherLink III (test mode)",
@ -601,7 +601,7 @@ static void el3_common_remove (struct net_device *dev)
}
#ifdef CONFIG_MCA
static int __devinit el3_mca_probe(struct device *device)
static int __init el3_mca_probe(struct device *device)
{
/* Based on Erik Nygren's (nygren@mit.edu) 3c529 patch,
* heavily modified by Chris Beauregard
@ -671,7 +671,7 @@ static int __devinit el3_mca_probe(struct device *device)
#endif /* CONFIG_MCA */
#ifdef CONFIG_EISA
static int __devinit el3_eisa_probe (struct device *device)
static int __init el3_eisa_probe (struct device *device)
{
short i;
int ioaddr, irq, if_port;

4
drivers/net/3c59x.c
View File

@ -901,14 +901,14 @@ static const struct dev_pm_ops vortex_pm_ops = {
#endif /* !CONFIG_PM */
#ifdef CONFIG_EISA
static const struct eisa_device_id vortex_eisa_ids[] __devinitconst = {
static struct eisa_device_id vortex_eisa_ids[] = {
{ "TCM5920", CH_3C592 },
{ "TCM5970", CH_3C597 },
{ "" }
};
MODULE_DEVICE_TABLE(eisa, vortex_eisa_ids);
static int __devinit vortex_eisa_probe(struct device *device)
static int __init vortex_eisa_probe(struct device *device)
{
void __iomem *ioaddr;
struct eisa_device *edev;

6
drivers/net/caif/caif_serial.c
View File

@ -167,8 +167,8 @@ static inline void debugfs_tx(struct ser_device *ser, const u8 *data, int size)
#endif
static unsigned int ldisc_receive(struct tty_struct *tty,
const u8 *data, char *flags, int count)
static void ldisc_receive(struct tty_struct *tty, const u8 *data,
char *flags, int count)
{
struct sk_buff *skb = NULL;
struct ser_device *ser;
@ -215,8 +215,6 @@ static unsigned int ldisc_receive(struct tty_struct *tty,
} else
++ser->dev->stats.rx_dropped;
update_tty_status(ser);
return count;
}
static int handle_tx(struct ser_device *ser)

5
drivers/net/can/flexcan.c
View File

@ -923,7 +923,7 @@ static int __devinit flexcan_probe(struct platform_device *pdev)
mem_size = resource_size(mem);
if (!request_mem_region(mem->start, mem_size, pdev->name)) {
err = -EBUSY;
goto failed_req;
goto failed_get;
}
base = ioremap(mem->start, mem_size);
@ -977,9 +977,8 @@ static int __devinit flexcan_probe(struct platform_device *pdev)
iounmap(base);
failed_map:
release_mem_region(mem->start, mem_size);
failed_req:
clk_put(clk);
failed_get:
clk_put(clk);
failed_clock:
return err;
}

9
drivers/net/can/slcan.c
View File

@ -425,17 +425,16 @@ static void slc_setup(struct net_device *dev)
* in parallel
*/
static unsigned int slcan_receive_buf(struct tty_struct *tty,
static void slcan_receive_buf(struct tty_struct *tty,
const unsigned char *cp, char *fp, int count)
{
struct slcan *sl = (struct slcan *) tty->disc_data;
int bytes = count;
if (!sl || sl->magic != SLCAN_MAGIC || !netif_running(sl->dev))
return -ENODEV;
return;
/* Read the characters out of the buffer */
while (bytes--) {
while (count--) {
if (fp && *fp++) {
if (!test_and_set_bit(SLF_ERROR, &sl->flags))
sl->dev->stats.rx_errors++;
@ -444,8 +443,6 @@ static unsigned int slcan_receive_buf(struct tty_struct *tty,
}
slcan_unesc(sl, *cp++);
}
return count;
}
/************************************

10
drivers/net/davinci_emac.c
View File

@ -1781,8 +1781,8 @@ static int __devinit davinci_emac_probe(struct platform_device *pdev)
ndev = alloc_etherdev(sizeof(struct emac_priv));
if (!ndev) {
dev_err(&pdev->dev, "error allocating net_device\n");
clk_put(emac_clk);
return -ENOMEM;
rc = -ENOMEM;
goto free_clk;
}
platform_set_drvdata(pdev, ndev);
@ -1796,7 +1796,8 @@ static int __devinit davinci_emac_probe(struct platform_device *pdev)
pdata = pdev->dev.platform_data;
if (!pdata) {
dev_err(&pdev->dev, "no platform data\n");
return -ENODEV;
rc = -ENODEV;
goto probe_quit;
}
/* MAC addr and PHY mask , RMII enable info from platform_data */
@ -1929,8 +1930,9 @@ no_dma:
iounmap(priv->remap_addr);
probe_quit:
clk_put(emac_clk);
free_netdev(ndev);
free_clk:
clk_put(emac_clk);
return rc;
}

35
drivers/net/depca.c
View File

@ -331,18 +331,18 @@ static struct {
"DE422",\
""}
static const char* const depca_signature[] __devinitconst = DEPCA_SIGNATURE;
static char* __initdata depca_signature[] = DEPCA_SIGNATURE;
enum depca_type {
DEPCA, de100, de101, de200, de201, de202, de210, de212, de422, unknown
};
static const char depca_string[] = "depca";
static char depca_string[] = "depca";
static int depca_device_remove (struct device *device);
#ifdef CONFIG_EISA
static const struct eisa_device_id depca_eisa_ids[] __devinitconst = {
static struct eisa_device_id depca_eisa_ids[] = {
{ "DEC4220", de422 },
{ "" }
};
@ -367,19 +367,19 @@ static struct eisa_driver depca_eisa_driver = {
#define DE210_ID 0x628d
#define DE212_ID 0x6def
static const short depca_mca_adapter_ids[] __devinitconst = {
static short depca_mca_adapter_ids[] = {
DE210_ID,
DE212_ID,
0x0000
};
static const char *depca_mca_adapter_name[] = {
static char *depca_mca_adapter_name[] = {
"DEC EtherWORKS MC Adapter (DE210)",
"DEC EtherWORKS MC Adapter (DE212)",
NULL
};
static const enum depca_type depca_mca_adapter_type[] = {
static enum depca_type depca_mca_adapter_type[] = {
de210,
de212,
0
@ -541,9 +541,10 @@ static void SetMulticastFilter(struct net_device *dev);
static int load_packet(struct net_device *dev, struct sk_buff *skb);
static void depca_dbg_open(struct net_device *dev);
static const u_char de1xx_irq[] __devinitconst = { 2, 3, 4, 5, 7, 9, 0 };
static const u_char de2xx_irq[] __devinitconst = { 5, 9, 10, 11, 15, 0 };
static const u_char de422_irq[] __devinitconst = { 5, 9, 10, 11, 0 };
static u_char de1xx_irq[] __initdata = { 2, 3, 4, 5, 7, 9, 0 };
static u_char de2xx_irq[] __initdata = { 5, 9, 10, 11, 15, 0 };
static u_char de422_irq[] __initdata = { 5, 9, 10, 11, 0 };
static u_char *depca_irq;
static int irq;
static int io;
@ -579,7 +580,7 @@ static const struct net_device_ops depca_netdev_ops = {
.ndo_validate_addr = eth_validate_addr,
};
static int __devinit depca_hw_init (struct net_device *dev, struct device *device)
static int __init depca_hw_init (struct net_device *dev, struct device *device)
{
struct depca_private *lp;
int i, j, offset, netRAM, mem_len, status = 0;
@ -747,7 +748,6 @@ static int __devinit depca_hw_init (struct net_device *dev, struct device *devic
if (dev->irq < 2) {
unsigned char irqnum;
unsigned long irq_mask, delay;
const u_char *depca_irq;
irq_mask = probe_irq_on();
@ -770,7 +770,6 @@ static int __devinit depca_hw_init (struct net_device *dev, struct device *devic
break;
default:
depca_irq = NULL;
break; /* Not reached */
}
@ -1303,7 +1302,7 @@ static void SetMulticastFilter(struct net_device *dev)
}
}
static int __devinit depca_common_init (u_long ioaddr, struct net_device **devp)
static int __init depca_common_init (u_long ioaddr, struct net_device **devp)
{
int status = 0;
@ -1334,7 +1333,7 @@ static int __devinit depca_common_init (u_long ioaddr, struct net_device **devp)
/*
** Microchannel bus I/O device probe
*/
static int __devinit depca_mca_probe(struct device *device)
static int __init depca_mca_probe(struct device *device)
{
unsigned char pos[2];
unsigned char where;
@ -1458,7 +1457,7 @@ static int __devinit depca_mca_probe(struct device *device)
** ISA bus I/O device probe
*/
static void __devinit depca_platform_probe (void)
static void __init depca_platform_probe (void)
{
int i;
struct platform_device *pldev;
@ -1498,7 +1497,7 @@ static void __devinit depca_platform_probe (void)
}
}
static enum depca_type __devinit depca_shmem_probe (ulong *mem_start)
static enum depca_type __init depca_shmem_probe (ulong *mem_start)
{
u_long mem_base[] = DEPCA_RAM_BASE_ADDRESSES;
enum depca_type adapter = unknown;
@ -1559,7 +1558,7 @@ static int __devinit depca_isa_probe (struct platform_device *device)
*/
#ifdef CONFIG_EISA
static int __devinit depca_eisa_probe (struct device *device)
static int __init depca_eisa_probe (struct device *device)
{
enum depca_type adapter = unknown;
struct eisa_device *edev;
@ -1630,7 +1629,7 @@ static int __devexit depca_device_remove (struct device *device)
** and Boot (readb) ROM. This will also give us a clue to the network RAM
** base address.
*/
static int __devinit DepcaSignature(char *name, u_long base_addr)
static int __init DepcaSignature(char *name, u_long base_addr)
{
u_int i, j, k;
void __iomem *ptr;

6
drivers/net/dm9000.c
View File

@ -1157,9 +1157,6 @@ dm9000_open(struct net_device *dev)
irqflags |= IRQF_SHARED;
if (request_irq(dev->irq, dm9000_interrupt, irqflags, dev->name, dev))
return -EAGAIN;
/* GPIO0 on pre-activate PHY, Reg 1F is not set by reset */
iow(db, DM9000_GPR, 0); /* REG_1F bit0 activate phyxcer */
mdelay(1); /* delay needs by DM9000B */
@ -1168,6 +1165,9 @@ dm9000_open(struct net_device *dev)
dm9000_reset(db);
dm9000_init_dm9000(dev);
if (request_irq(dev->irq, dm9000_interrupt, irqflags, dev->name, dev))
return -EAGAIN;
/* Init driver variable */
db->dbug_cnt = 0;

8
drivers/net/hamradio/6pack.c
View File

@ -456,7 +456,7 @@ out:
* a block of 6pack data has been received, which can now be decapsulated
* and sent on to some IP layer for further processing.
*/
static unsigned int sixpack_receive_buf(struct tty_struct *tty,
static void sixpack_receive_buf(struct tty_struct *tty,
const unsigned char *cp, char *fp, int count)
{
struct sixpack *sp;
@ -464,11 +464,11 @@ static unsigned int sixpack_receive_buf(struct tty_struct *tty,
int count1;
if (!count)
return 0;
return;
sp = sp_get(tty);
if (!sp)
return -ENODEV;
return;
memcpy(buf, cp, count < sizeof(buf) ? count : sizeof(buf));
@ -487,8 +487,6 @@ static unsigned int sixpack_receive_buf(struct tty_struct *tty,
sp_put(sp);
tty_unthrottle(tty);
return count1;
}
/*

11
drivers/net/hamradio/mkiss.c
View File

@ -923,14 +923,13 @@ static long mkiss_compat_ioctl(struct tty_struct *tty, struct file *file,
* a block of data has been received, which can now be decapsulated
* and sent on to the AX.25 layer for further processing.
*/
static unsigned int mkiss_receive_buf(struct tty_struct *tty,
const unsigned char *cp, char *fp, int count)
static void mkiss_receive_buf(struct tty_struct *tty, const unsigned char *cp,
char *fp, int count)
{
struct mkiss *ax = mkiss_get(tty);
int bytes = count;
if (!ax)
return -ENODEV;
return;
/*
* Argh! mtu change time! - costs us the packet part received
@ -940,7 +939,7 @@ static unsigned int mkiss_receive_buf(struct tty_struct *tty,
ax_changedmtu(ax);
/* Read the characters out of the buffer */
while (bytes--) {
while (count--) {
if (fp != NULL && *fp++) {
if (!test_and_set_bit(AXF_ERROR, &ax->flags))
ax->dev->stats.rx_errors++;
@ -953,8 +952,6 @@ static unsigned int mkiss_receive_buf(struct tty_struct *tty,
mkiss_put(ax);
tty_unthrottle(tty);
return count;
}
/*

12
drivers/net/hp100.c
View File

@ -188,14 +188,14 @@ struct hp100_private {
* variables
*/
#ifdef CONFIG_ISA
static const char *const hp100_isa_tbl[] __devinitconst = {
static const char *hp100_isa_tbl[] = {
"HWPF150", /* HP J2573 rev A */
"HWP1950", /* HP J2573 */
};
#endif
#ifdef CONFIG_EISA
static const struct eisa_device_id hp100_eisa_tbl[] __devinitconst = {
static struct eisa_device_id hp100_eisa_tbl[] = {
{ "HWPF180" }, /* HP J2577 rev A */
{ "HWP1920" }, /* HP 27248B */
{ "HWP1940" }, /* HP J2577 */
@ -336,7 +336,7 @@ static __devinit const char *hp100_read_id(int ioaddr)
}
#ifdef CONFIG_ISA
static __devinit int hp100_isa_probe1(struct net_device *dev, int ioaddr)
static __init int hp100_isa_probe1(struct net_device *dev, int ioaddr)
{
const char *sig;
int i;
@ -372,7 +372,7 @@ static __devinit int hp100_isa_probe1(struct net_device *dev, int ioaddr)
* EISA and PCI are handled by device infrastructure.
*/
static int __devinit hp100_isa_probe(struct net_device *dev, int addr)
static int __init hp100_isa_probe(struct net_device *dev, int addr)
{
int err = -ENODEV;
@ -396,7 +396,7 @@ static int __devinit hp100_isa_probe(struct net_device *dev, int addr)
#endif /* CONFIG_ISA */
#if !defined(MODULE) && defined(CONFIG_ISA)
struct net_device * __devinit hp100_probe(int unit)
struct net_device * __init hp100_probe(int unit)
{
struct net_device *dev = alloc_etherdev(sizeof(struct hp100_private));
int err;
@ -2843,7 +2843,7 @@ static void cleanup_dev(struct net_device *d)
}
#ifdef CONFIG_EISA
static int __devinit hp100_eisa_probe (struct device *gendev)
static int __init hp100_eisa_probe (struct device *gendev)
{
struct net_device *dev = alloc_etherdev(sizeof(struct hp100_private));
struct eisa_device *edev = to_eisa_device(gendev);

4
drivers/net/ibmlana.c
View File

@ -895,12 +895,12 @@ static int ibmlana_irq;
static int ibmlana_io;
static int startslot; /* counts through slots when probing multiple devices */
static const short ibmlana_adapter_ids[] __devinitconst = {
static short ibmlana_adapter_ids[] __initdata = {
IBM_LANA_ID,
0x0000
};
static const char *const ibmlana_adapter_names[] __devinitconst = {
static char *ibmlana_adapter_names[] __devinitdata = {
"IBM LAN Adapter/A",
NULL
};

16
drivers/net/irda/irtty-sir.c
View File

@ -216,23 +216,23 @@ static int irtty_do_write(struct sir_dev *dev, const unsigned char *ptr, size_t
* usbserial: urb-complete-interrupt / softint
*/
static unsigned int irtty_receive_buf(struct tty_struct *tty,
const unsigned char *cp, char *fp, int count)
static void irtty_receive_buf(struct tty_struct *tty, const unsigned char *cp,
char *fp, int count)
{
struct sir_dev *dev;
struct sirtty_cb *priv = tty->disc_data;
int i;
IRDA_ASSERT(priv != NULL, return -ENODEV;);
IRDA_ASSERT(priv->magic == IRTTY_MAGIC, return -EINVAL;);
IRDA_ASSERT(priv != NULL, return;);
IRDA_ASSERT(priv->magic == IRTTY_MAGIC, return;);
if (unlikely(count==0)) /* yes, this happens */
return 0;
return;
dev = priv->dev;
if (!dev) {
IRDA_WARNING("%s(), not ready yet!\n", __func__);
return -ENODEV;
return;
}
for (i = 0; i < count; i++) {
@ -242,13 +242,11 @@ static unsigned int irtty_receive_buf(struct tty_struct *tty,
if (fp && *fp++) {
IRDA_DEBUG(0, "Framing or parity error!\n");
sirdev_receive(dev, NULL, 0); /* notify sir_dev (updating stats) */
return -EINVAL;
return;
}
}
sirdev_receive(dev, cp, count);
return count;
}
/*

44
drivers/net/irda/smsc-ircc2.c
View File

@ -222,19 +222,19 @@ static void smsc_ircc_set_transceiver_for_speed(struct smsc_ircc_cb *self, u32 s
static void smsc_ircc_sir_wait_hw_transmitter_finish(struct smsc_ircc_cb *self);
/* Probing */
static int smsc_ircc_look_for_chips(void);
static const struct smsc_chip * smsc_ircc_probe(unsigned short cfg_base, u8 reg, const struct smsc_chip *chip, char *type);
static int smsc_superio_flat(const struct smsc_chip *chips, unsigned short cfg_base, char *type);
static int smsc_superio_paged(const struct smsc_chip *chips, unsigned short cfg_base, char *type);
static int smsc_superio_fdc(unsigned short cfg_base);
static int smsc_superio_lpc(unsigned short cfg_base);
static int __init smsc_ircc_look_for_chips(void);
static const struct smsc_chip * __init smsc_ircc_probe(unsigned short cfg_base, u8 reg, const struct smsc_chip *chip, char *type);
static int __init smsc_superio_flat(const struct smsc_chip *chips, unsigned short cfg_base, char *type);
static int __init smsc_superio_paged(const struct smsc_chip *chips, unsigned short cfg_base, char *type);
static int __init smsc_superio_fdc(unsigned short cfg_base);
static int __init smsc_superio_lpc(unsigned short cfg_base);
#ifdef CONFIG_PCI
static int preconfigure_smsc_chip(struct smsc_ircc_subsystem_configuration *conf);
static int preconfigure_through_82801(struct pci_dev *dev, struct smsc_ircc_subsystem_configuration *conf);
static void preconfigure_ali_port(struct pci_dev *dev,
static int __init preconfigure_smsc_chip(struct smsc_ircc_subsystem_configuration *conf);
static int __init preconfigure_through_82801(struct pci_dev *dev, struct smsc_ircc_subsystem_configuration *conf);
static void __init preconfigure_ali_port(struct pci_dev *dev,
unsigned short port);
static int preconfigure_through_ali(struct pci_dev *dev, struct smsc_ircc_subsystem_configuration *conf);
static int smsc_ircc_preconfigure_subsystems(unsigned short ircc_cfg,
static int __init preconfigure_through_ali(struct pci_dev *dev, struct smsc_ircc_subsystem_configuration *conf);
static int __init smsc_ircc_preconfigure_subsystems(unsigned short ircc_cfg,
unsigned short ircc_fir,
unsigned short ircc_sir,
unsigned char ircc_dma,
@ -366,7 +366,7 @@ static inline void register_bank(int iobase, int bank)
}
/* PNP hotplug support */
static const struct pnp_device_id smsc_ircc_pnp_table[] __devinitconst = {
static const struct pnp_device_id smsc_ircc_pnp_table[] = {
{ .id = "SMCf010", .driver_data = 0 },
/* and presumably others */
{ }
@ -515,7 +515,7 @@ static const struct net_device_ops smsc_ircc_netdev_ops = {
* Try to open driver instance
*
*/
static int __devinit smsc_ircc_open(unsigned int fir_base, unsigned int sir_base, u8 dma, u8 irq)
static int __init smsc_ircc_open(unsigned int fir_base, unsigned int sir_base, u8 dma, u8 irq)
{
struct smsc_ircc_cb *self;
struct net_device *dev;
@ -2273,7 +2273,7 @@ static int __init smsc_superio_paged(const struct smsc_chip *chips, unsigned sho
}
static int __devinit smsc_access(unsigned short cfg_base, unsigned char reg)
static int __init smsc_access(unsigned short cfg_base, unsigned char reg)
{
IRDA_DEBUG(1, "%s\n", __func__);
@ -2281,7 +2281,7 @@ static int __devinit smsc_access(unsigned short cfg_base, unsigned char reg)
return inb(cfg_base) != reg ? -1 : 0;
}
static const struct smsc_chip * __devinit smsc_ircc_probe(unsigned short cfg_base, u8 reg, const struct smsc_chip *chip, char *type)
static const struct smsc_chip * __init smsc_ircc_probe(unsigned short cfg_base, u8 reg, const struct smsc_chip *chip, char *type)
{
u8 devid, xdevid, rev;
@ -2406,7 +2406,7 @@ static int __init smsc_superio_lpc(unsigned short cfg_base)
#ifdef CONFIG_PCI
#define PCIID_VENDOR_INTEL 0x8086
#define PCIID_VENDOR_ALI 0x10b9
static const struct smsc_ircc_subsystem_configuration subsystem_configurations[] __devinitconst = {
static struct smsc_ircc_subsystem_configuration subsystem_configurations[] __initdata = {
/*
* Subsystems needing entries:
* 0x10b9:0x1533 0x103c:0x0850 HP nx9010 family
@ -2532,7 +2532,7 @@ static const struct smsc_ircc_subsystem_configuration subsystem_configurations[]
* (FIR port, SIR port, FIR DMA, FIR IRQ)
* through the chip configuration port.
*/
static int __devinit preconfigure_smsc_chip(struct
static int __init preconfigure_smsc_chip(struct
smsc_ircc_subsystem_configuration
*conf)
{
@ -2633,7 +2633,7 @@ static int __devinit preconfigure_smsc_chip(struct
* or Intel 82801DB/DBL (ICH4/ICH4-L) LPC Interface Bridge.
* They all work the same way!
*/
static int __devinit preconfigure_through_82801(struct pci_dev *dev,
static int __init preconfigure_through_82801(struct pci_dev *dev,
struct
smsc_ircc_subsystem_configuration
*conf)
@ -2786,7 +2786,7 @@ static int __devinit preconfigure_through_82801(struct pci_dev *dev,
* This is based on reverse-engineering since ALi does not
* provide any data sheet for the 1533 chip.
*/
static void __devinit preconfigure_ali_port(struct pci_dev *dev,
static void __init preconfigure_ali_port(struct pci_dev *dev,
unsigned short port)
{
unsigned char reg;
@ -2824,7 +2824,7 @@ static void __devinit preconfigure_ali_port(struct pci_dev *dev,
IRDA_MESSAGE("Activated ALi 1533 ISA bridge port 0x%04x.\n", port);
}
static int __devinit preconfigure_through_ali(struct pci_dev *dev,
static int __init preconfigure_through_ali(struct pci_dev *dev,
struct
smsc_ircc_subsystem_configuration
*conf)
@ -2837,7 +2837,7 @@ static int __devinit preconfigure_through_ali(struct pci_dev *dev,
return preconfigure_smsc_chip(conf);
}
static int __devinit smsc_ircc_preconfigure_subsystems(unsigned short ircc_cfg,
static int __init smsc_ircc_preconfigure_subsystems(unsigned short ircc_cfg,
unsigned short ircc_fir,
unsigned short ircc_sir,
unsigned char ircc_dma,
@ -2849,7 +2849,7 @@ static int __devinit smsc_ircc_preconfigure_subsystems(unsigned short ircc_cfg,
int ret = 0;
for_each_pci_dev(dev) {
const struct smsc_ircc_subsystem_configuration *conf;
struct smsc_ircc_subsystem_configuration *conf;
/*
* Cache the subsystem vendor/device:

2
drivers/net/ks8842.c
View File

@ -661,7 +661,7 @@ static void ks8842_rx_frame(struct net_device *netdev,
/* check the status */
if ((status & RXSR_VALID) && !(status & RXSR_ERROR)) {
struct sk_buff *skb = netdev_alloc_skb_ip_align(netdev, len);
struct sk_buff *skb = netdev_alloc_skb_ip_align(netdev, len + 3);
if (skb) {

15
drivers/net/ne3210.c
View File

@ -80,20 +80,17 @@ static void ne3210_block_output(struct net_device *dev, int count, const unsigne
#define NE3210_DEBUG 0x0
static const unsigned char irq_map[] __devinitconst =
{ 15, 12, 11, 10, 9, 7, 5, 3 };
static const unsigned int shmem_map[] __devinitconst =
{ 0xff0, 0xfe0, 0xfff0, 0xd8, 0xffe0, 0xffc0, 0xd0, 0x0 };
static const char *const ifmap[] __devinitconst =
{ "UTP", "?", "BNC", "AUI" };
static const int ifmap_val[] __devinitconst = {
static unsigned char irq_map[] __initdata = {15, 12, 11, 10, 9, 7, 5, 3};
static unsigned int shmem_map[] __initdata = {0xff0, 0xfe0, 0xfff0, 0xd8, 0xffe0, 0xffc0, 0xd0, 0x0};
static const char *ifmap[] __initdata = {"UTP", "?", "BNC", "AUI"};
static int ifmap_val[] __initdata = {
IF_PORT_10BASET,
IF_PORT_UNKNOWN,
IF_PORT_10BASE2,
IF_PORT_AUI,
};
static int __devinit ne3210_eisa_probe (struct device *device)
static int __init ne3210_eisa_probe (struct device *device)
{
unsigned long ioaddr, phys_mem;
int i, retval, port_index;
@ -316,7 +313,7 @@ static void ne3210_block_output(struct net_device *dev, int count,
memcpy_toio(shmem, buf, count);
}
static const struct eisa_device_id ne3210_ids[] __devinitconst = {
static struct eisa_device_id ne3210_ids[] = {
{ "EGL0101" },
{ "NVL1801" },
{ "" },

6
drivers/net/ppp_async.c
View File

@ -340,7 +340,7 @@ ppp_asynctty_poll(struct tty_struct *tty, struct file *file, poll_table *wait)
}
/* May sleep, don't call from interrupt level or with interrupts disabled */
static unsigned int
static void
ppp_asynctty_receive(struct tty_struct *tty, const unsigned char *buf,
char *cflags, int count)
{
@ -348,7 +348,7 @@ ppp_asynctty_receive(struct tty_struct *tty, const unsigned char *buf,
unsigned long flags;
if (!ap)
return -ENODEV;
return;
spin_lock_irqsave(&ap->recv_lock, flags);
ppp_async_input(ap, buf, cflags, count);
spin_unlock_irqrestore(&ap->recv_lock, flags);
@ -356,8 +356,6 @@ ppp_asynctty_receive(struct tty_struct *tty, const unsigned char *buf,
tasklet_schedule(&ap->tsk);
ap_put(ap);
tty_unthrottle(tty);
return count;
}
static void

6
drivers/net/ppp_synctty.c
View File

@ -381,7 +381,7 @@ ppp_sync_poll(struct tty_struct *tty, struct file *file, poll_table *wait)
}
/* May sleep, don't call from interrupt level or with interrupts disabled */
static unsigned int
static void
ppp_sync_receive(struct tty_struct *tty, const unsigned char *buf,
char *cflags, int count)
{
@ -389,7 +389,7 @@ ppp_sync_receive(struct tty_struct *tty, const unsigned char *buf,
unsigned long flags;
if (!ap)
return -ENODEV;
return;
spin_lock_irqsave(&ap->recv_lock, flags);
ppp_sync_input(ap, buf, cflags, count);
spin_unlock_irqrestore(&ap->recv_lock, flags);
@ -397,8 +397,6 @@ ppp_sync_receive(struct tty_struct *tty, const unsigned char *buf,
tasklet_schedule(&ap->tsk);
sp_put(ap);
tty_unthrottle(tty);
return count;
}
static void

11
drivers/net/slip.c
View File

@ -670,17 +670,16 @@ static void sl_setup(struct net_device *dev)
* in parallel
*/
static unsigned int slip_receive_buf(struct tty_struct *tty,
const unsigned char *cp, char *fp, int count)
static void slip_receive_buf(struct tty_struct *tty, const unsigned char *cp,
char *fp, int count)
{
struct slip *sl = tty->disc_data;
int bytes = count;
if (!sl || sl->magic != SLIP_MAGIC || !netif_running(sl->dev))
return -ENODEV;
return;
/* Read the characters out of the buffer */
while (bytes--) {
while (count--) {
if (fp && *fp++) {
if (!test_and_set_bit(SLF_ERROR, &sl->flags))
sl->dev->stats.rx_errors++;
@ -694,8 +693,6 @@ static unsigned int slip_receive_buf(struct tty_struct *tty,
#endif
slip_unesc(sl, *cp++);
}
return count;
}
/************************************

6
drivers/net/smc-mca.c
View File

@ -156,7 +156,7 @@ static const struct {
{ 14, 15 }
};
static const short smc_mca_adapter_ids[] __devinitconst = {
static short smc_mca_adapter_ids[] __initdata = {
0x61c8,
0x61c9,
0x6fc0,
@ -168,7 +168,7 @@ static const short smc_mca_adapter_ids[] __devinitconst = {
0x0000
};
static const char *const smc_mca_adapter_names[] __devinitconst = {
static char *smc_mca_adapter_names[] __initdata = {
"SMC Ethercard PLUS Elite/A BNC/AUI (WD8013EP/A)",
"SMC Ethercard PLUS Elite/A UTP/AUI (WD8013WP/A)",
"WD Ethercard PLUS/A (WD8003E/A or WD8003ET/A)",
@ -199,7 +199,7 @@ static const struct net_device_ops ultramca_netdev_ops = {
#endif
};
static int __devinit ultramca_probe(struct device *gen_dev)
static int __init ultramca_probe(struct device *gen_dev)
{
unsigned short ioaddr;
struct net_device *dev;

2
drivers/net/tg3.c
View File

@ -5774,7 +5774,7 @@ static void tg3_skb_error_unmap(struct tg3_napi *tnapi,
dma_unmap_addr(txb, mapping),
skb_headlen(skb),
PCI_DMA_TODEVICE);
for (i = 0; i <= last; i++) {
for (i = 0; i < last; i++) {
skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
entry = NEXT_TX(entry);

2
drivers/net/tokenring/madgemc.c
View File

@ -727,7 +727,7 @@ static int __devexit madgemc_remove(struct device *device)
return 0;
}
static const short madgemc_adapter_ids[] __devinitconst = {
static short madgemc_adapter_ids[] __initdata = {
0x002d,
0x0000
};

4
drivers/net/tulip/de4x5.c
View File

@ -1995,7 +1995,7 @@ SetMulticastFilter(struct net_device *dev)
static u_char de4x5_irq[] = EISA_ALLOWED_IRQ_LIST;
static int __devinit de4x5_eisa_probe (struct device *gendev)
static int __init de4x5_eisa_probe (struct device *gendev)
{
struct eisa_device *edev;
u_long iobase;
@ -2097,7 +2097,7 @@ static int __devexit de4x5_eisa_remove (struct device *device)
return 0;
}
static const struct eisa_device_id de4x5_eisa_ids[] __devinitconst = {
static struct eisa_device_id de4x5_eisa_ids[] = {
{ "DEC4250", 0 }, /* 0 is the board name index... */
{ "" }
};

2
drivers/net/usb/catc.c
View File

@ -495,7 +495,7 @@ static void catc_ctrl_run(struct catc *catc)
if (!q->dir && q->buf && q->len)
memcpy(catc->ctrl_buf, q->buf, q->len);
if ((status = usb_submit_urb(catc->ctrl_urb, GFP_KERNEL)))
if ((status = usb_submit_urb(catc->ctrl_urb, GFP_ATOMIC)))
err("submit(ctrl_urb) status %d", status);
}

3
drivers/net/usb/cdc_ncm.c
View File

@ -54,7 +54,7 @@
#include <linux/usb/usbnet.h>
#include <linux/usb/cdc.h>
#define DRIVER_VERSION "24-May-2011"
#define DRIVER_VERSION "01-June-2011"
/* CDC NCM subclass 3.2.1 */
#define USB_CDC_NCM_NDP16_LENGTH_MIN 0x10
@ -1234,6 +1234,7 @@ static struct usb_driver cdc_ncm_driver = {
.disconnect = cdc_ncm_disconnect,
.suspend = usbnet_suspend,
.resume = usbnet_resume,
.reset_resume = usbnet_resume,
.supports_autosuspend = 1,
};

7
drivers/net/wan/x25_asy.c
View File

@ -517,18 +517,17 @@ static int x25_asy_close(struct net_device *dev)
* and sent on to some IP layer for further processing.
*/
static unsigned int x25_asy_receive_buf(struct tty_struct *tty,
static void x25_asy_receive_buf(struct tty_struct *tty,
const unsigned char *cp, char *fp, int count)
{
struct x25_asy *sl = tty->disc_data;
int bytes = count;
if (!sl || sl->magic != X25_ASY_MAGIC || !netif_running(sl->dev))
return;
/* Read the characters out of the buffer */
while (bytes--) {
while (count--) {
if (fp && *fp++) {
if (!test_and_set_bit(SLF_ERROR, &sl->flags))
sl->dev->stats.rx_errors++;
@ -537,8 +536,6 @@ static unsigned int x25_asy_receive_buf(struct tty_struct *tty,
}
x25_asy_unesc(sl, *cp++);
}
return count;
}
/*

1
drivers/net/wireless/ath/ath9k/Kconfig
View File

@ -26,7 +26,6 @@ config ATH9K
config ATH9K_PCI
bool "Atheros ath9k PCI/PCIe bus support"
depends on ATH9K && PCI
default PCI
---help---
This option enables the PCI bus support in ath9k.

2
drivers/net/wireless/ath/ath9k/ar9002_calib.c
View File

@ -829,7 +829,7 @@ static bool ar9002_hw_init_cal(struct ath_hw *ah, struct ath9k_channel *chan)
if (AR_SREV_9271(ah)) {
if (!ar9285_hw_cl_cal(ah, chan))
return false;
} else if (AR_SREV_9285_12_OR_LATER(ah)) {
} else if (AR_SREV_9285(ah) && AR_SREV_9285_12_OR_LATER(ah)) {
if (!ar9285_hw_clc(ah, chan))
return false;
} else {

10
drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
View File

@ -4645,10 +4645,16 @@ static void ar9003_hw_set_power_per_rate_table(struct ath_hw *ah,
case 1:
break;
case 2:
scaledPower -= REDUCE_SCALED_POWER_BY_TWO_CHAIN;
if (scaledPower > REDUCE_SCALED_POWER_BY_TWO_CHAIN)
scaledPower -= REDUCE_SCALED_POWER_BY_TWO_CHAIN;
else
scaledPower = 0;
break;
case 3:
scaledPower -= REDUCE_SCALED_POWER_BY_THREE_CHAIN;
if (scaledPower > REDUCE_SCALED_POWER_BY_THREE_CHAIN)
scaledPower -= REDUCE_SCALED_POWER_BY_THREE_CHAIN;
else
scaledPower = 0;
break;
}

22
drivers/net/wireless/ath/ath9k/ar9003_phy.c
View File

@ -1381,3 +1381,25 @@ void ar9003_hw_bb_watchdog_dbg_info(struct ath_hw *ah)
"==== BB update: done ====\n\n");
}
EXPORT_SYMBOL(ar9003_hw_bb_watchdog_dbg_info);
void ar9003_hw_disable_phy_restart(struct ath_hw *ah)
{
u32 val;
/* While receiving unsupported rate frame rx state machine
* gets into a state 0xb and if phy_restart happens in that
* state, BB would go hang. If RXSM is in 0xb state after
* first bb panic, ensure to disable the phy_restart.
*/
if (!((MS(ah->bb_watchdog_last_status,
AR_PHY_WATCHDOG_RX_OFDM_SM) == 0xb) ||
ah->bb_hang_rx_ofdm))
return;
ah->bb_hang_rx_ofdm = true;
val = REG_READ(ah, AR_PHY_RESTART);
val &= ~AR_PHY_RESTART_ENA;
REG_WRITE(ah, AR_PHY_RESTART, val);
}
EXPORT_SYMBOL(ar9003_hw_disable_phy_restart);

10
drivers/net/wireless/ath/ath9k/eeprom_9287.c
View File

@ -524,10 +524,16 @@ static void ath9k_hw_set_ar9287_power_per_rate_table(struct ath_hw *ah,
case 1:
break;
case 2:
scaledPower -= REDUCE_SCALED_POWER_BY_TWO_CHAIN;
if (scaledPower > REDUCE_SCALED_POWER_BY_TWO_CHAIN)
scaledPower -= REDUCE_SCALED_POWER_BY_TWO_CHAIN;
else
scaledPower = 0;
break;
case 3:
scaledPower -= REDUCE_SCALED_POWER_BY_THREE_CHAIN;
if (scaledPower > REDUCE_SCALED_POWER_BY_THREE_CHAIN)
scaledPower -= REDUCE_SCALED_POWER_BY_THREE_CHAIN;
else
scaledPower = 0;
break;
}
scaledPower = max((u16)0, scaledPower);

5
drivers/net/wireless/ath/ath9k/hw.c
View File

@ -1555,9 +1555,12 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
if (ah->btcoex_hw.enabled)
ath9k_hw_btcoex_enable(ah);
if (AR_SREV_9300_20_OR_LATER(ah))
if (AR_SREV_9300_20_OR_LATER(ah)) {
ar9003_hw_bb_watchdog_config(ah);
ar9003_hw_disable_phy_restart(ah);
}
ath9k_hw_apply_gpio_override(ah);
return 0;

2
drivers/net/wireless/ath/ath9k/hw.h
View File

@ -842,6 +842,7 @@ struct ath_hw {
u32 bb_watchdog_last_status;
u32 bb_watchdog_timeout_ms; /* in ms, 0 to disable */
u8 bb_hang_rx_ofdm; /* true if bb hang due to rx_ofdm */
unsigned int paprd_target_power;
unsigned int paprd_training_power;
@ -990,6 +991,7 @@ void ar9002_hw_enable_wep_aggregation(struct ath_hw *ah);
void ar9003_hw_bb_watchdog_config(struct ath_hw *ah);
void ar9003_hw_bb_watchdog_read(struct ath_hw *ah);
void ar9003_hw_bb_watchdog_dbg_info(struct ath_hw *ah);
void ar9003_hw_disable_phy_restart(struct ath_hw *ah);
void ar9003_paprd_enable(struct ath_hw *ah, bool val);
void ar9003_paprd_populate_single_table(struct ath_hw *ah,
struct ath9k_hw_cal_data *caldata,

4
drivers/net/wireless/ath/ath9k/main.c
View File

@ -670,7 +670,8 @@ void ath9k_tasklet(unsigned long data)
u32 status = sc->intrstatus;
u32 rxmask;
if (status & ATH9K_INT_FATAL) {
if ((status & ATH9K_INT_FATAL) ||
(status & ATH9K_INT_BB_WATCHDOG)) {
ath_reset(sc, true);
return;
}
@ -737,6 +738,7 @@ irqreturn_t ath_isr(int irq, void *dev)
{
#define SCHED_INTR ( \
ATH9K_INT_FATAL | \
ATH9K_INT_BB_WATCHDOG | \
ATH9K_INT_RXORN | \
ATH9K_INT_RXEOL | \
ATH9K_INT_RX | \

3
drivers/net/wireless/ath/ath9k/rc.c
View File

@ -689,7 +689,8 @@ static void ath_rc_rate_set_series(const struct ath_rate_table *rate_table,
if (WLAN_RC_PHY_HT(rate_table->info[rix].phy)) {
rate->flags |= IEEE80211_TX_RC_MCS;
if (WLAN_RC_PHY_40(rate_table->info[rix].phy))
if (WLAN_RC_PHY_40(rate_table->info[rix].phy) &&
conf_is_ht40(&txrc->hw->conf))
rate->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH;
if (WLAN_RC_PHY_SGI(rate_table->info[rix].phy))
rate->flags |= IEEE80211_TX_RC_SHORT_GI;

2
drivers/net/wireless/b43/phy_n.c
View File

@ -3093,7 +3093,7 @@ static int b43_nphy_cal_tx_iq_lo(struct b43_wldev *dev,
int freq;
bool avoid = false;
u8 length;
u16 tmp, core, type, count, max, numb, last, cmd;
u16 tmp, core, type, count, max, numb, last = 0, cmd;
const u16 *table;
bool phy6or5x;

4
drivers/net/wireless/iwlegacy/iwl-4965-lib.c
View File

@ -628,11 +628,11 @@ void iwl4965_rx_reply_rx(struct iwl_priv *priv,
/* rx_status carries information about the packet to mac80211 */
rx_status.mactime = le64_to_cpu(phy_res->timestamp);
rx_status.band = (phy_res->phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK) ?
IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
rx_status.freq =
ieee80211_channel_to_frequency(le16_to_cpu(phy_res->channel),
rx_status.band);
rx_status.band = (phy_res->phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK) ?
IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
rx_status.rate_idx =
iwl4965_hwrate_to_mac80211_idx(rate_n_flags, rx_status.band);
rx_status.flag = 0;

2
drivers/net/wireless/iwlegacy/iwl-4965.c
View File

@ -1543,7 +1543,7 @@ static void iwl4965_temperature_calib(struct iwl_priv *priv)
s32 temp;
temp = iwl4965_hw_get_temperature(priv);
if (temp < 0)
if (IWL_TX_POWER_TEMPERATURE_OUT_OF_RANGE(temp))
return;
if (priv->temperature != temp) {

28
drivers/net/wireless/iwlwifi/iwl-6000.c
View File

@ -603,19 +603,27 @@ struct iwl_cfg iwl6050_2abg_cfg = {
IWL_DEVICE_6050,
};
#define IWL_DEVICE_6150 \
.fw_name_pre = IWL6050_FW_PRE, \
.ucode_api_max = IWL6050_UCODE_API_MAX, \
.ucode_api_min = IWL6050_UCODE_API_MIN, \
.ops = &iwl6150_ops, \
.eeprom_ver = EEPROM_6150_EEPROM_VERSION, \
.eeprom_calib_ver = EEPROM_6150_TX_POWER_VERSION, \
.base_params = &iwl6050_base_params, \
.need_dc_calib = true, \
.led_mode = IWL_LED_BLINK, \
.internal_wimax_coex = true
struct iwl_cfg iwl6150_bgn_cfg = {
.name = "Intel(R) Centrino(R) Wireless-N + WiMAX 6150 BGN",
.fw_name_pre = IWL6050_FW_PRE,
.ucode_api_max = IWL6050_UCODE_API_MAX,
.ucode_api_min = IWL6050_UCODE_API_MIN,
.eeprom_ver = EEPROM_6150_EEPROM_VERSION,
.eeprom_calib_ver = EEPROM_6150_TX_POWER_VERSION,
.ops = &iwl6150_ops,
.base_params = &iwl6050_base_params,
IWL_DEVICE_6150,
.ht_params = &iwl6000_ht_params,
.need_dc_calib = true,
.led_mode = IWL_LED_RF_STATE,
.internal_wimax_coex = true,
};
struct iwl_cfg iwl6150_bg_cfg = {
.name = "Intel(R) Centrino(R) Wireless-N + WiMAX 6150 BG",
IWL_DEVICE_6150,
};
struct iwl_cfg iwl6000_3agn_cfg = {

6
drivers/net/wireless/iwlwifi/iwl-agn.c
View File

@ -3831,11 +3831,11 @@ static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = {
/* 6150 WiFi/WiMax Series */
{IWL_PCI_DEVICE(0x0885, 0x1305, iwl6150_bgn_cfg)},
{IWL_PCI_DEVICE(0x0885, 0x1306, iwl6150_bgn_cfg)},
{IWL_PCI_DEVICE(0x0885, 0x1307, iwl6150_bg_cfg)},
{IWL_PCI_DEVICE(0x0885, 0x1325, iwl6150_bgn_cfg)},
{IWL_PCI_DEVICE(0x0885, 0x1326, iwl6150_bgn_cfg)},
{IWL_PCI_DEVICE(0x0885, 0x1327, iwl6150_bg_cfg)},
{IWL_PCI_DEVICE(0x0886, 0x1315, iwl6150_bgn_cfg)},
{IWL_PCI_DEVICE(0x0886, 0x1316, iwl6150_bgn_cfg)},
{IWL_PCI_DEVICE(0x0886, 0x1317, iwl6150_bg_cfg)},
/* 1000 Series WiFi */
{IWL_PCI_DEVICE(0x0083, 0x1205, iwl1000_bgn_cfg)},

1
drivers/net/wireless/iwlwifi/iwl-agn.h
View File

@ -89,6 +89,7 @@ extern struct iwl_cfg iwl6000_3agn_cfg;
extern struct iwl_cfg iwl6050_2agn_cfg;
extern struct iwl_cfg iwl6050_2abg_cfg;
extern struct iwl_cfg iwl6150_bgn_cfg;
extern struct iwl_cfg iwl6150_bg_cfg;
extern struct iwl_cfg iwl1000_bgn_cfg;
extern struct iwl_cfg iwl1000_bg_cfg;
extern struct iwl_cfg iwl100_bgn_cfg;

6
drivers/net/wireless/libertas/cmd.c
View File

@ -994,6 +994,8 @@ static void lbs_submit_command(struct lbs_private *priv,
cmd = cmdnode->cmdbuf;
spin_lock_irqsave(&priv->driver_lock, flags);
priv->seqnum++;
cmd->seqnum = cpu_to_le16(priv->seqnum);
priv->cur_cmd = cmdnode;
spin_unlock_irqrestore(&priv->driver_lock, flags);
@ -1621,11 +1623,9 @@ struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv,
/* Copy the incoming command to the buffer */
memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size);
/* Set sequence number, clean result, move to buffer */
priv->seqnum++;
/* Set command, clean result, move to buffer */
cmdnode->cmdbuf->command = cpu_to_le16(command);
cmdnode->cmdbuf->size = cpu_to_le16(in_cmd_size);
cmdnode->cmdbuf->seqnum = cpu_to_le16(priv->seqnum);
cmdnode->cmdbuf->result = 0;
lbs_deb_host("PREP_CMD: command 0x%04x\n", command);

4
drivers/net/wireless/mwifiex/sdio.h
View File

@ -167,8 +167,8 @@
/* Rx unit register */
#define CARD_RX_UNIT_REG 0x63
/* Event header Len*/
#define MWIFIEX_EVENT_HEADER_LEN 8
/* Event header len w/o 4 bytes of interface header */
#define MWIFIEX_EVENT_HEADER_LEN 4
/* Max retry number of CMD53 write */
#define MAX_WRITE_IOMEM_RETRY 2

1
drivers/net/wireless/rt2x00/Kconfig
View File

@ -166,7 +166,6 @@ config RT2800USB_RT35XX
config RT2800USB_RT53XX
bool "rt2800usb - Include support for rt53xx devices (EXPERIMENTAL)"
depends on EXPERIMENTAL
default y
---help---
This adds support for rt53xx wireless chipset family to the
rt2800pci driver.

35
drivers/net/wireless/rtlwifi/pci.c
View File

@ -669,11 +669,6 @@ static void _rtl_pci_rx_interrupt(struct ieee80211_hw *hw)
&rx_status,
(u8 *) pdesc, skb);
pci_unmap_single(rtlpci->pdev,
*((dma_addr_t *) skb->cb),
rtlpci->rxbuffersize,
PCI_DMA_FROMDEVICE);
skb_put(skb, rtlpriv->cfg->ops->get_desc((u8 *) pdesc,
false,
HW_DESC_RXPKT_LEN));
@ -690,6 +685,21 @@ static void _rtl_pci_rx_interrupt(struct ieee80211_hw *hw)
hdr = rtl_get_hdr(skb);
fc = rtl_get_fc(skb);
/* try for new buffer - if allocation fails, drop
* frame and reuse old buffer
*/
new_skb = dev_alloc_skb(rtlpci->rxbuffersize);
if (unlikely(!new_skb)) {
RT_TRACE(rtlpriv, (COMP_INTR | COMP_RECV),
DBG_DMESG,
("can't alloc skb for rx\n"));
goto done;
}
pci_unmap_single(rtlpci->pdev,
*((dma_addr_t *) skb->cb),
rtlpci->rxbuffersize,
PCI_DMA_FROMDEVICE);
if (!stats.crc || !stats.hwerror) {
memcpy(IEEE80211_SKB_RXCB(skb), &rx_status,
sizeof(rx_status));
@ -758,15 +768,7 @@ static void _rtl_pci_rx_interrupt(struct ieee80211_hw *hw)
rtl_lps_leave(hw);
}
new_skb = dev_alloc_skb(rtlpci->rxbuffersize);
if (unlikely(!new_skb)) {
RT_TRACE(rtlpriv, (COMP_INTR | COMP_RECV),
DBG_DMESG,
("can't alloc skb for rx\n"));
goto done;
}
skb = new_skb;
/*skb->dev = dev; */
rtlpci->rx_ring[rx_queue_idx].rx_buf[rtlpci->
rx_ring
@ -1113,6 +1115,13 @@ static int _rtl_pci_init_rx_ring(struct ieee80211_hw *hw)
rtlpci->rx_ring[rx_queue_idx].idx = 0;
/* If amsdu_8k is disabled, set buffersize to 4096. This
* change will reduce memory fragmentation.
*/
if (rtlpci->rxbuffersize > 4096 &&
rtlpriv->rtlhal.disable_amsdu_8k)
rtlpci->rxbuffersize = 4096;
for (i = 0; i < rtlpci->rxringcount; i++) {
struct sk_buff *skb =
dev_alloc_skb(rtlpci->rxbuffersize);

3
drivers/net/wireless/wl12xx/conf.h
View File

@ -1157,6 +1157,9 @@ struct conf_sched_scan_settings {
/* time to wait on the channel for passive scans (in TUs) */
u32 dwell_time_passive;
/* time to wait on the channel for DFS scans (in TUs) */
u32 dwell_time_dfs;
/* number of probe requests to send on each channel in active scans */
u8 num_probe_reqs;

1
drivers/net/wireless/wl12xx/main.c
View File

@ -311,6 +311,7 @@ static struct conf_drv_settings default_conf = {
.min_dwell_time_active = 8,
.max_dwell_time_active = 30,
.dwell_time_passive = 100,
.dwell_time_dfs = 150,
.num_probe_reqs = 2,
.rssi_threshold = -90,
.snr_threshold = 0,

51
drivers/net/wireless/wl12xx/scan.c
View File

@ -331,16 +331,22 @@ wl1271_scan_get_sched_scan_channels(struct wl1271 *wl,
struct conf_sched_scan_settings *c = &wl->conf.sched_scan;
int i, j;
u32 flags;
bool force_passive = !req->n_ssids;
for (i = 0, j = start;
i < req->n_channels && j < MAX_CHANNELS_ALL_BANDS;
i++) {
flags = req->channels[i]->flags;
if (!(flags & IEEE80211_CHAN_DISABLED) &&
((flags & IEEE80211_CHAN_PASSIVE_SCAN) == passive) &&
((flags & IEEE80211_CHAN_RADAR) == radar) &&
(req->channels[i]->band == band)) {
if (force_passive)
flags |= IEEE80211_CHAN_PASSIVE_SCAN;
if ((req->channels[i]->band == band) &&
!(flags & IEEE80211_CHAN_DISABLED) &&
(!!(flags & IEEE80211_CHAN_RADAR) == radar) &&
/* if radar is set, we ignore the passive flag */
(radar ||
!!(flags & IEEE80211_CHAN_PASSIVE_SCAN) == passive)) {
wl1271_debug(DEBUG_SCAN, "band %d, center_freq %d ",
req->channels[i]->band,
req->channels[i]->center_freq);
@ -350,7 +356,12 @@ wl1271_scan_get_sched_scan_channels(struct wl1271 *wl,
wl1271_debug(DEBUG_SCAN, "max_power %d",
req->channels[i]->max_power);
if (flags & IEEE80211_CHAN_PASSIVE_SCAN) {
if (flags & IEEE80211_CHAN_RADAR) {
channels[j].flags |= SCAN_CHANNEL_FLAGS_DFS;
channels[j].passive_duration =
cpu_to_le16(c->dwell_time_dfs);
}
else if (flags & IEEE80211_CHAN_PASSIVE_SCAN) {
channels[j].passive_duration =
cpu_to_le16(c->dwell_time_passive);
} else {
@ -359,7 +370,7 @@ wl1271_scan_get_sched_scan_channels(struct wl1271 *wl,
channels[j].max_duration =
cpu_to_le16(c->max_dwell_time_active);
}
channels[j].tx_power_att = req->channels[j]->max_power;
channels[j].tx_power_att = req->channels[i]->max_power;
channels[j].channel = req->channels[i]->hw_value;
j++;
@ -386,7 +397,11 @@ wl1271_scan_sched_scan_channels(struct wl1271 *wl,
wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels,
IEEE80211_BAND_2GHZ,
false, false, idx);
idx += cfg->active[0];
/*
* 5GHz channels always start at position 14, not immediately
* after the last 2.4GHz channel
*/
idx = 14;
cfg->passive[1] =
wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels,
@ -394,22 +409,23 @@ wl1271_scan_sched_scan_channels(struct wl1271 *wl,
false, true, idx);
idx += cfg->passive[1];
cfg->active[1] =
wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels,
IEEE80211_BAND_5GHZ,
false, false, 14);
idx += cfg->active[1];
cfg->dfs =
wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels,
IEEE80211_BAND_5GHZ,
true, false, idx);
true, true, idx);
idx += cfg->dfs;
cfg->active[1] =
wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels,
IEEE80211_BAND_5GHZ,
false, false, idx);
idx += cfg->active[1];
wl1271_debug(DEBUG_SCAN, " 2.4GHz: active %d passive %d",
cfg->active[0], cfg->passive[0]);
wl1271_debug(DEBUG_SCAN, " 5GHz: active %d passive %d",
cfg->active[1], cfg->passive[1]);
wl1271_debug(DEBUG_SCAN, " DFS: %d", cfg->dfs);
return idx;
}
@ -421,6 +437,7 @@ int wl1271_scan_sched_scan_config(struct wl1271 *wl,
struct wl1271_cmd_sched_scan_config *cfg = NULL;
struct conf_sched_scan_settings *c = &wl->conf.sched_scan;
int i, total_channels, ret;
bool force_passive = !req->n_ssids;
wl1271_debug(DEBUG_CMD, "cmd sched_scan scan config");
@ -444,7 +461,7 @@ int wl1271_scan_sched_scan_config(struct wl1271 *wl,
for (i = 0; i < SCAN_MAX_CYCLE_INTERVALS; i++)
cfg->intervals[i] = cpu_to_le32(req->interval);
if (req->ssids[0].ssid_len && req->ssids[0].ssid) {
if (!force_passive && req->ssids[0].ssid_len && req->ssids[0].ssid) {
cfg->filter_type = SCAN_SSID_FILTER_SPECIFIC;
cfg->ssid_len = req->ssids[0].ssid_len;
memcpy(cfg->ssid, req->ssids[0].ssid,
@ -461,7 +478,7 @@ int wl1271_scan_sched_scan_config(struct wl1271 *wl,
goto out;
}
if (cfg->active[0]) {
if (!force_passive && cfg->active[0]) {
ret = wl1271_cmd_build_probe_req(wl, req->ssids[0].ssid,
req->ssids[0].ssid_len,
ies->ie[IEEE80211_BAND_2GHZ],
@ -473,7 +490,7 @@ int wl1271_scan_sched_scan_config(struct wl1271 *wl,
}
}
if (cfg->active[1]) {
if (!force_passive && cfg->active[1]) {
ret = wl1271_cmd_build_probe_req(wl, req->ssids[0].ssid,
req->ssids[0].ssid_len,
ies->ie[IEEE80211_BAND_5GHZ],

3
drivers/net/wireless/wl12xx/scan.h
View File

@ -137,6 +137,9 @@ enum {
SCAN_BSS_TYPE_ANY,
};
#define SCAN_CHANNEL_FLAGS_DFS BIT(0)
#define SCAN_CHANNEL_FLAGS_DFS_ENABLED BIT(1)
struct conn_scan_ch_params {
__le16 min_duration;
__le16 max_duration;

53
drivers/net/wireless/zd1211rw/zd_usb.c
View File

@ -1533,6 +1533,31 @@ static void __exit usb_exit(void)
module_init(usb_init);
module_exit(usb_exit);
static int zd_ep_regs_out_msg(struct usb_device *udev, void *data, int len,
int *actual_length, int timeout)
{
/* In USB 2.0 mode EP_REGS_OUT endpoint is interrupt type. However in
* USB 1.1 mode endpoint is bulk. Select correct type URB by endpoint
* descriptor.
*/
struct usb_host_endpoint *ep;
unsigned int pipe;
pipe = usb_sndintpipe(udev, EP_REGS_OUT);
ep = usb_pipe_endpoint(udev, pipe);
if (!ep)
return -EINVAL;
if (usb_endpoint_xfer_int(&ep->desc)) {
return usb_interrupt_msg(udev, pipe, data, len,
actual_length, timeout);
} else {
pipe = usb_sndbulkpipe(udev, EP_REGS_OUT);
return usb_bulk_msg(udev, pipe, data, len, actual_length,
timeout);
}
}
static int usb_int_regs_length(unsigned int count)
{
return sizeof(struct usb_int_regs) + count * sizeof(struct reg_data);
@ -1648,15 +1673,14 @@ int zd_usb_ioread16v(struct zd_usb *usb, u16 *values,
udev = zd_usb_to_usbdev(usb);
prepare_read_regs_int(usb);
r = usb_interrupt_msg(udev, usb_sndintpipe(udev, EP_REGS_OUT),
req, req_len, &actual_req_len, 50 /* ms */);
r = zd_ep_regs_out_msg(udev, req, req_len, &actual_req_len, 50 /*ms*/);
if (r) {
dev_dbg_f(zd_usb_dev(usb),
"error in usb_interrupt_msg(). Error number %d\n", r);
"error in zd_ep_regs_out_msg(). Error number %d\n", r);
goto error;
}
if (req_len != actual_req_len) {
dev_dbg_f(zd_usb_dev(usb), "error in usb_interrupt_msg()\n"
dev_dbg_f(zd_usb_dev(usb), "error in zd_ep_regs_out_msg()\n"
" req_len %d != actual_req_len %d\n",
req_len, actual_req_len);
r = -EIO;
@ -1818,9 +1842,17 @@ int zd_usb_iowrite16v_async(struct zd_usb *usb, const struct zd_ioreq16 *ioreqs,
rw->value = cpu_to_le16(ioreqs[i].value);
}
usb_fill_int_urb(urb, udev, usb_sndintpipe(udev, EP_REGS_OUT),
req, req_len, iowrite16v_urb_complete, usb,
ep->desc.bInterval);
/* In USB 2.0 mode endpoint is interrupt type. However in USB 1.1 mode
* endpoint is bulk. Select correct type URB by endpoint descriptor.
*/
if (usb_endpoint_xfer_int(&ep->desc))
usb_fill_int_urb(urb, udev, usb_sndintpipe(udev, EP_REGS_OUT),
req, req_len, iowrite16v_urb_complete, usb,
ep->desc.bInterval);
else
usb_fill_bulk_urb(urb, udev, usb_sndbulkpipe(udev, EP_REGS_OUT),
req, req_len, iowrite16v_urb_complete, usb);
urb->transfer_flags |= URB_FREE_BUFFER;
/* Submit previous URB */
@ -1924,15 +1956,14 @@ int zd_usb_rfwrite(struct zd_usb *usb, u32 value, u8 bits)
}
udev = zd_usb_to_usbdev(usb);
r = usb_interrupt_msg(udev, usb_sndintpipe(udev, EP_REGS_OUT),
req, req_len, &actual_req_len, 50 /* ms */);
r = zd_ep_regs_out_msg(udev, req, req_len, &actual_req_len, 50 /*ms*/);
if (r) {
dev_dbg_f(zd_usb_dev(usb),
"error in usb_interrupt_msg(). Error number %d\n", r);
"error in zd_ep_regs_out_msg(). Error number %d\n", r);
goto out;
}
if (req_len != actual_req_len) {
dev_dbg_f(zd_usb_dev(usb), "error in usb_interrupt_msg()"
dev_dbg_f(zd_usb_dev(usb), "error in zd_ep_regs_out_msg()"
" req_len %d != actual_req_len %d\n",
req_len, actual_req_len);
r = -EIO;

2
drivers/rtc/rtc-m41t93.c
View File

@ -189,7 +189,7 @@ static int __devinit m41t93_probe(struct spi_device *spi)
static int __devexit m41t93_remove(struct spi_device *spi)
{
struct rtc_device *rtc = platform_get_drvdata(spi);
struct rtc_device *rtc = spi_get_drvdata(spi);
if (rtc)
rtc_device_unregister(rtc);

2
drivers/scsi/scsi_scan.c
View File

@ -297,7 +297,7 @@ static struct scsi_device *scsi_alloc_sdev(struct scsi_target *starget,
kfree(sdev);
goto out;
}
blk_get_queue(sdev->request_queue);
sdev->request_queue->queuedata = sdev;
scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);

1
drivers/scsi/scsi_sysfs.c
View File

@ -322,6 +322,7 @@ static void scsi_device_dev_release_usercontext(struct work_struct *work)
kfree(evt);
}
blk_put_queue(sdev->request_queue);
/* NULL queue means the device can't be used */
sdev->request_queue = NULL;

303
drivers/spi/spi-ep93xx.c
View File

@ -1,7 +1,7 @@
/*
* Driver for Cirrus Logic EP93xx SPI controller.
*
* Copyright (c) 2010 Mika Westerberg
* Copyright (C) 2010-2011 Mika Westerberg
*
* Explicit FIFO handling code was inspired by amba-pl022 driver.
*
@ -21,13 +21,16 @@
#include <linux/err.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/dmaengine.h>
#include <linux/bitops.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/workqueue.h>
#include <linux/sched.h>
#include <linux/scatterlist.h>
#include <linux/spi/spi.h>
#include <mach/dma.h>
#include <mach/ep93xx_spi.h>
#define SSPCR0 0x0000
@ -71,6 +74,7 @@
* @pdev: pointer to platform device
* @clk: clock for the controller
* @regs_base: pointer to ioremap()'d registers
* @sspdr_phys: physical address of the SSPDR register
* @irq: IRQ number used by the driver
* @min_rate: minimum clock rate (in Hz) supported by the controller
* @max_rate: maximum clock rate (in Hz) supported by the controller
@ -84,6 +88,14 @@
* @rx: current byte in transfer to receive
* @fifo_level: how full is FIFO (%0..%SPI_FIFO_SIZE - %1). Receiving one
* frame decreases this level and sending one frame increases it.
* @dma_rx: RX DMA channel
* @dma_tx: TX DMA channel
* @dma_rx_data: RX parameters passed to the DMA engine
* @dma_tx_data: TX parameters passed to the DMA engine
* @rx_sgt: sg table for RX transfers
* @tx_sgt: sg table for TX transfers
* @zeropage: dummy page used as RX buffer when only TX buffer is passed in by
* the client
*
* This structure holds EP93xx SPI controller specific information. When
* @running is %true, driver accepts transfer requests from protocol drivers.
@ -100,6 +112,7 @@ struct ep93xx_spi {
const struct platform_device *pdev;
struct clk *clk;
void __iomem *regs_base;
unsigned long sspdr_phys;
int irq;
unsigned long min_rate;
unsigned long max_rate;
@ -112,6 +125,13 @@ struct ep93xx_spi {
size_t tx;
size_t rx;
size_t fifo_level;
struct dma_chan *dma_rx;
struct dma_chan *dma_tx;
struct ep93xx_dma_data dma_rx_data;
struct ep93xx_dma_data dma_tx_data;
struct sg_table rx_sgt;
struct sg_table tx_sgt;
void *zeropage;
};
/**
@ -496,14 +516,195 @@ static int ep93xx_spi_read_write(struct ep93xx_spi *espi)
espi->fifo_level++;
}
if (espi->rx == t->len) {
msg->actual_length += t->len;
if (espi->rx == t->len)
return 0;
}
return -EINPROGRESS;
}
static void ep93xx_spi_pio_transfer(struct ep93xx_spi *espi)
{
/*
* Now everything is set up for the current transfer. We prime the TX
* FIFO, enable interrupts, and wait for the transfer to complete.
*/
if (ep93xx_spi_read_write(espi)) {
ep93xx_spi_enable_interrupts(espi);
wait_for_completion(&espi->wait);
}
}
/**
* ep93xx_spi_dma_prepare() - prepares a DMA transfer
* @espi: ep93xx SPI controller struct
* @dir: DMA transfer direction
*
* Function configures the DMA, maps the buffer and prepares the DMA
* descriptor. Returns a valid DMA descriptor in case of success and ERR_PTR
* in case of failure.
*/
static struct dma_async_tx_descriptor *
ep93xx_spi_dma_prepare(struct ep93xx_spi *espi, enum dma_data_direction dir)
{
struct spi_transfer *t = espi->current_msg->state;
struct dma_async_tx_descriptor *txd;
enum dma_slave_buswidth buswidth;
struct dma_slave_config conf;
struct scatterlist *sg;
struct sg_table *sgt;
struct dma_chan *chan;
const void *buf, *pbuf;
size_t len = t->len;
int i, ret, nents;
if (bits_per_word(espi) > 8)
buswidth = DMA_SLAVE_BUSWIDTH_2_BYTES;
else
buswidth = DMA_SLAVE_BUSWIDTH_1_BYTE;
memset(&conf, 0, sizeof(conf));
conf.direction = dir;
if (dir == DMA_FROM_DEVICE) {
chan = espi->dma_rx;
buf = t->rx_buf;
sgt = &espi->rx_sgt;
conf.src_addr = espi->sspdr_phys;
conf.src_addr_width = buswidth;
} else {
chan = espi->dma_tx;
buf = t->tx_buf;
sgt = &espi->tx_sgt;
conf.dst_addr = espi->sspdr_phys;
conf.dst_addr_width = buswidth;
}
ret = dmaengine_slave_config(chan, &conf);
if (ret)
return ERR_PTR(ret);
/*
* We need to split the transfer into PAGE_SIZE'd chunks. This is
* because we are using @espi->zeropage to provide a zero RX buffer
* for the TX transfers and we have only allocated one page for that.
*
* For performance reasons we allocate a new sg_table only when
* needed. Otherwise we will re-use the current one. Eventually the
* last sg_table is released in ep93xx_spi_release_dma().
*/
nents = DIV_ROUND_UP(len, PAGE_SIZE);
if (nents != sgt->nents) {
sg_free_table(sgt);
ret = sg_alloc_table(sgt, nents, GFP_KERNEL);
if (ret)
return ERR_PTR(ret);
}
pbuf = buf;
for_each_sg(sgt->sgl, sg, sgt->nents, i) {
size_t bytes = min_t(size_t, len, PAGE_SIZE);
if (buf) {
sg_set_page(sg, virt_to_page(pbuf), bytes,
offset_in_page(pbuf));
} else {
sg_set_page(sg, virt_to_page(espi->zeropage),
bytes, 0);
}
pbuf += bytes;
len -= bytes;
}
if (WARN_ON(len)) {
dev_warn(&espi->pdev->dev, "len = %d expected 0!", len);
return ERR_PTR(-EINVAL);
}
nents = dma_map_sg(chan->device->dev, sgt->sgl, sgt->nents, dir);
if (!nents)
return ERR_PTR(-ENOMEM);
txd = chan->device->device_prep_slave_sg(chan, sgt->sgl, nents,
dir, DMA_CTRL_ACK);
if (!txd) {
dma_unmap_sg(chan->device->dev, sgt->sgl, sgt->nents, dir);
return ERR_PTR(-ENOMEM);
}
return txd;
}
/**
* ep93xx_spi_dma_finish() - finishes with a DMA transfer
* @espi: ep93xx SPI controller struct
* @dir: DMA transfer direction
*
* Function finishes with the DMA transfer. After this, the DMA buffer is
* unmapped.
*/
static void ep93xx_spi_dma_finish(struct ep93xx_spi *espi,
enum dma_data_direction dir)
{
struct dma_chan *chan;
struct sg_table *sgt;
if (dir == DMA_FROM_DEVICE) {
chan = espi->dma_rx;
sgt = &espi->rx_sgt;
} else {
chan = espi->dma_tx;
sgt = &espi->tx_sgt;
}
dma_unmap_sg(chan->device->dev, sgt->sgl, sgt->nents, dir);
}
static void ep93xx_spi_dma_callback(void *callback_param)
{
complete(callback_param);
}
static void ep93xx_spi_dma_transfer(struct ep93xx_spi *espi)
{
struct spi_message *msg = espi->current_msg;
struct dma_async_tx_descriptor *rxd, *txd;
rxd = ep93xx_spi_dma_prepare(espi, DMA_FROM_DEVICE);
if (IS_ERR(rxd)) {
dev_err(&espi->pdev->dev, "DMA RX failed: %ld\n", PTR_ERR(rxd));
msg->status = PTR_ERR(rxd);
return;
}
txd = ep93xx_spi_dma_prepare(espi, DMA_TO_DEVICE);
if (IS_ERR(txd)) {
ep93xx_spi_dma_finish(espi, DMA_FROM_DEVICE);
dev_err(&espi->pdev->dev, "DMA TX failed: %ld\n", PTR_ERR(rxd));
msg->status = PTR_ERR(txd);
return;
}
/* We are ready when RX is done */
rxd->callback = ep93xx_spi_dma_callback;
rxd->callback_param = &espi->wait;
/* Now submit both descriptors and wait while they finish */
dmaengine_submit(rxd);
dmaengine_submit(txd);
dma_async_issue_pending(espi->dma_rx);
dma_async_issue_pending(espi->dma_tx);
wait_for_completion(&espi->wait);
ep93xx_spi_dma_finish(espi, DMA_TO_DEVICE);
ep93xx_spi_dma_finish(espi, DMA_FROM_DEVICE);
}
/**
* ep93xx_spi_process_transfer() - processes one SPI transfer
* @espi: ep93xx SPI controller struct
@ -556,13 +757,14 @@ static void ep93xx_spi_process_transfer(struct ep93xx_spi *espi,
espi->tx = 0;
/*
* Now everything is set up for the current transfer. We prime the TX
* FIFO, enable interrupts, and wait for the transfer to complete.
* There is no point of setting up DMA for the transfers which will
* fit into the FIFO and can be transferred with a single interrupt.
* So in these cases we will be using PIO and don't bother for DMA.
*/
if (ep93xx_spi_read_write(espi)) {
ep93xx_spi_enable_interrupts(espi);
wait_for_completion(&espi->wait);
}
if (espi->dma_rx && t->len > SPI_FIFO_SIZE)
ep93xx_spi_dma_transfer(espi);
else
ep93xx_spi_pio_transfer(espi);
/*
* In case of error during transmit, we bail out from processing
@ -571,6 +773,8 @@ static void ep93xx_spi_process_transfer(struct ep93xx_spi *espi,
if (msg->status)
return;
msg->actual_length += t->len;
/*
* After this transfer is finished, perform any possible
* post-transfer actions requested by the protocol driver.
@ -752,6 +956,75 @@ static irqreturn_t ep93xx_spi_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
static bool ep93xx_spi_dma_filter(struct dma_chan *chan, void *filter_param)
{
if (ep93xx_dma_chan_is_m2p(chan))
return false;
chan->private = filter_param;
return true;
}
static int ep93xx_spi_setup_dma(struct ep93xx_spi *espi)
{
dma_cap_mask_t mask;
int ret;
espi->zeropage = (void *)get_zeroed_page(GFP_KERNEL);
if (!espi->zeropage)
return -ENOMEM;
dma_cap_zero(mask);
dma_cap_set(DMA_SLAVE, mask);
espi->dma_rx_data.port = EP93XX_DMA_SSP;
espi->dma_rx_data.direction = DMA_FROM_DEVICE;
espi->dma_rx_data.name = "ep93xx-spi-rx";
espi->dma_rx = dma_request_channel(mask, ep93xx_spi_dma_filter,
&espi->dma_rx_data);
if (!espi->dma_rx) {
ret = -ENODEV;
goto fail_free_page;
}
espi->dma_tx_data.port = EP93XX_DMA_SSP;
espi->dma_tx_data.direction = DMA_TO_DEVICE;
espi->dma_tx_data.name = "ep93xx-spi-tx";
espi->dma_tx = dma_request_channel(mask, ep93xx_spi_dma_filter,
&espi->dma_tx_data);
if (!espi->dma_tx) {
ret = -ENODEV;
goto fail_release_rx;
}
return 0;
fail_release_rx:
dma_release_channel(espi->dma_rx);
espi->dma_rx = NULL;
fail_free_page:
free_page((unsigned long)espi->zeropage);
return ret;
}
static void ep93xx_spi_release_dma(struct ep93xx_spi *espi)
{
if (espi->dma_rx) {
dma_release_channel(espi->dma_rx);
sg_free_table(&espi->rx_sgt);
}
if (espi->dma_tx) {
dma_release_channel(espi->dma_tx);
sg_free_table(&espi->tx_sgt);
}
if (espi->zeropage)
free_page((unsigned long)espi->zeropage);
}
static int __init ep93xx_spi_probe(struct platform_device *pdev)
{
struct spi_master *master;
@ -818,6 +1091,7 @@ static int __init ep93xx_spi_probe(struct platform_device *pdev)
goto fail_put_clock;
}
espi->sspdr_phys = res->start + SSPDR;
espi->regs_base = ioremap(res->start, resource_size(res));
if (!espi->regs_base) {
dev_err(&pdev->dev, "failed to map resources\n");
@ -832,10 +1106,13 @@ static int __init ep93xx_spi_probe(struct platform_device *pdev)
goto fail_unmap_regs;
}
if (info->use_dma && ep93xx_spi_setup_dma(espi))
dev_warn(&pdev->dev, "DMA setup failed. Falling back to PIO\n");
espi->wq = create_singlethread_workqueue("ep93xx_spid");
if (!espi->wq) {
dev_err(&pdev->dev, "unable to create workqueue\n");
goto fail_free_irq;
goto fail_free_dma;
}
INIT_WORK(&espi->msg_work, ep93xx_spi_work);
INIT_LIST_HEAD(&espi->msg_queue);
@ -857,7 +1134,8 @@ static int __init ep93xx_spi_probe(struct platform_device *pdev)
fail_free_queue:
destroy_workqueue(espi->wq);
fail_free_irq:
fail_free_dma:
ep93xx_spi_release_dma(espi);
free_irq(espi->irq, espi);
fail_unmap_regs:
iounmap(espi->regs_base);
@ -901,6 +1179,7 @@ static int __exit ep93xx_spi_remove(struct platform_device *pdev)
}
spin_unlock_irq(&espi->lock);
ep93xx_spi_release_dma(espi);
free_irq(espi->irq, espi);
iounmap(espi->regs_base);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);

6
drivers/tty/n_gsm.c
View File

@ -2128,8 +2128,8 @@ static void gsmld_detach_gsm(struct tty_struct *tty, struct gsm_mux *gsm)
gsm->tty = NULL;
}
static unsigned int gsmld_receive_buf(struct tty_struct *tty,
const unsigned char *cp, char *fp, int count)
static void gsmld_receive_buf(struct tty_struct *tty, const unsigned char *cp,
char *fp, int count)
{
struct gsm_mux *gsm = tty->disc_data;
const unsigned char *dp;
@ -2162,8 +2162,6 @@ static unsigned int gsmld_receive_buf(struct tty_struct *tty,
}
/* FASYNC if needed ? */
/* If clogged call tty_throttle(tty); */
return count;
}
/**

18
drivers/tty/n_hdlc.c
View File

@ -188,8 +188,8 @@ static unsigned int n_hdlc_tty_poll(struct tty_struct *tty, struct file *filp,
poll_table *wait);
static int n_hdlc_tty_open(struct tty_struct *tty);
static void n_hdlc_tty_close(struct tty_struct *tty);
static unsigned int n_hdlc_tty_receive(struct tty_struct *tty,
const __u8 *cp, char *fp, int count);
static void n_hdlc_tty_receive(struct tty_struct *tty, const __u8 *cp,
char *fp, int count);
static void n_hdlc_tty_wakeup(struct tty_struct *tty);
#define bset(p,b) ((p)[(b) >> 5] |= (1 << ((b) & 0x1f)))
@ -509,8 +509,8 @@ static void n_hdlc_tty_wakeup(struct tty_struct *tty)
* Called by tty low level driver when receive data is available. Data is
* interpreted as one HDLC frame.
*/
static unsigned int n_hdlc_tty_receive(struct tty_struct *tty,
const __u8 *data, char *flags, int count)
static void n_hdlc_tty_receive(struct tty_struct *tty, const __u8 *data,
char *flags, int count)
{
register struct n_hdlc *n_hdlc = tty2n_hdlc (tty);
register struct n_hdlc_buf *buf;
@ -521,20 +521,20 @@ static unsigned int n_hdlc_tty_receive(struct tty_struct *tty,
/* This can happen if stuff comes in on the backup tty */
if (!n_hdlc || tty != n_hdlc->tty)
return -ENODEV;
return;
/* verify line is using HDLC discipline */
if (n_hdlc->magic != HDLC_MAGIC) {
printk("%s(%d) line not using HDLC discipline\n",
__FILE__,__LINE__);
return -EINVAL;
return;
}
if ( count>maxframe ) {
if (debuglevel >= DEBUG_LEVEL_INFO)
printk("%s(%d) rx count>maxframesize, data discarded\n",
__FILE__,__LINE__);
return -EINVAL;
return;
}
/* get a free HDLC buffer */
@ -550,7 +550,7 @@ static unsigned int n_hdlc_tty_receive(struct tty_struct *tty,
if (debuglevel >= DEBUG_LEVEL_INFO)
printk("%s(%d) no more rx buffers, data discarded\n",
__FILE__,__LINE__);
return -EINVAL;
return;
}
/* copy received data to HDLC buffer */
@ -565,8 +565,6 @@ static unsigned int n_hdlc_tty_receive(struct tty_struct *tty,
if (n_hdlc->tty->fasync != NULL)
kill_fasync (&n_hdlc->tty->fasync, SIGIO, POLL_IN);
return count;
} /* end of n_hdlc_tty_receive() */
/**

10
drivers/tty/n_r3964.c
View File

@ -139,8 +139,8 @@ static int r3964_ioctl(struct tty_struct *tty, struct file *file,
static void r3964_set_termios(struct tty_struct *tty, struct ktermios *old);
static unsigned int r3964_poll(struct tty_struct *tty, struct file *file,
struct poll_table_struct *wait);
static unsigned int r3964_receive_buf(struct tty_struct *tty,
const unsigned char *cp, char *fp, int count);
static void r3964_receive_buf(struct tty_struct *tty, const unsigned char *cp,
char *fp, int count);
static struct tty_ldisc_ops tty_ldisc_N_R3964 = {
.owner = THIS_MODULE,
@ -1239,8 +1239,8 @@ static unsigned int r3964_poll(struct tty_struct *tty, struct file *file,
return result;
}
static unsigned int r3964_receive_buf(struct tty_struct *tty,
const unsigned char *cp, char *fp, int count)
static void r3964_receive_buf(struct tty_struct *tty, const unsigned char *cp,
char *fp, int count)
{
struct r3964_info *pInfo = tty->disc_data;
const unsigned char *p;
@ -1257,8 +1257,6 @@ static unsigned int r3964_receive_buf(struct tty_struct *tty,
}
}
return count;
}
MODULE_LICENSE("GPL");

61
drivers/tty/n_tty.c
View File

@ -81,6 +81,38 @@ static inline int tty_put_user(struct tty_struct *tty, unsigned char x,
return put_user(x, ptr);
}
/**
* n_tty_set__room - receive space
* @tty: terminal
*
* Called by the driver to find out how much data it is
* permitted to feed to the line discipline without any being lost
* and thus to manage flow control. Not serialized. Answers for the
* "instant".
*/
static void n_tty_set_room(struct tty_struct *tty)
{
/* tty->read_cnt is not read locked ? */
int left = N_TTY_BUF_SIZE - tty->read_cnt - 1;
int old_left;
/*
* If we are doing input canonicalization, and there are no
* pending newlines, let characters through without limit, so
* that erase characters will be handled. Other excess
* characters will be beeped.
*/
if (left <= 0)
left = tty->icanon && !tty->canon_data;
old_left = tty->receive_room;
tty->receive_room = left;
/* Did this open up the receive buffer? We may need to flip */
if (left && !old_left)
schedule_work(&tty->buf.work);
}
static void put_tty_queue_nolock(unsigned char c, struct tty_struct *tty)
{
if (tty->read_cnt < N_TTY_BUF_SIZE) {
@ -152,6 +184,7 @@ static void reset_buffer_flags(struct tty_struct *tty)
tty->canon_head = tty->canon_data = tty->erasing = 0;
memset(&tty->read_flags, 0, sizeof tty->read_flags);
n_tty_set_room(tty);
check_unthrottle(tty);
}
@ -1327,19 +1360,17 @@ static void n_tty_write_wakeup(struct tty_struct *tty)
* calls one at a time and in order (or using flush_to_ldisc)
*/
static unsigned int n_tty_receive_buf(struct tty_struct *tty,
const unsigned char *cp, char *fp, int count)
static void n_tty_receive_buf(struct tty_struct *tty, const unsigned char *cp,
char *fp, int count)
{
const unsigned char *p;
char *f, flags = TTY_NORMAL;
int i;
char buf[64];
unsigned long cpuflags;
int left;
int ret = 0;
if (!tty->read_buf)
return 0;
return;
if (tty->real_raw) {
spin_lock_irqsave(&tty->read_lock, cpuflags);
@ -1349,7 +1380,6 @@ static unsigned int n_tty_receive_buf(struct tty_struct *tty,
memcpy(tty->read_buf + tty->read_head, cp, i);
tty->read_head = (tty->read_head + i) & (N_TTY_BUF_SIZE-1);
tty->read_cnt += i;
ret += i;
cp += i;
count -= i;
@ -1359,10 +1389,8 @@ static unsigned int n_tty_receive_buf(struct tty_struct *tty,
memcpy(tty->read_buf + tty->read_head, cp, i);
tty->read_head = (tty->read_head + i) & (N_TTY_BUF_SIZE-1);
tty->read_cnt += i;
ret += i;
spin_unlock_irqrestore(&tty->read_lock, cpuflags);
} else {
ret = count;
for (i = count, p = cp, f = fp; i; i--, p++) {
if (f)
flags = *f++;
@ -1390,6 +1418,8 @@ static unsigned int n_tty_receive_buf(struct tty_struct *tty,
tty->ops->flush_chars(tty);
}
n_tty_set_room(tty);
if ((!tty->icanon && (tty->read_cnt >= tty->minimum_to_wake)) ||
L_EXTPROC(tty)) {
kill_fasync(&tty->fasync, SIGIO, POLL_IN);
@ -1402,12 +1432,8 @@ static unsigned int n_tty_receive_buf(struct tty_struct *tty,
* mode. We don't want to throttle the driver if we're in
* canonical mode and don't have a newline yet!
*/
left = N_TTY_BUF_SIZE - tty->read_cnt - 1;
if (left < TTY_THRESHOLD_THROTTLE)
if (tty->receive_room < TTY_THRESHOLD_THROTTLE)
tty_throttle(tty);
return ret;
}
int is_ignored(int sig)
@ -1451,6 +1477,7 @@ static void n_tty_set_termios(struct tty_struct *tty, struct ktermios *old)
if (test_bit(TTY_HW_COOK_IN, &tty->flags)) {
tty->raw = 1;
tty->real_raw = 1;
n_tty_set_room(tty);
return;
}
if (I_ISTRIP(tty) || I_IUCLC(tty) || I_IGNCR(tty) ||
@ -1503,6 +1530,7 @@ static void n_tty_set_termios(struct tty_struct *tty, struct ktermios *old)
else
tty->real_raw = 0;
}
n_tty_set_room(tty);
/* The termios change make the tty ready for I/O */
wake_up_interruptible(&tty->write_wait);
wake_up_interruptible(&tty->read_wait);
@ -1784,6 +1812,8 @@ do_it_again:
retval = -ERESTARTSYS;
break;
}
/* FIXME: does n_tty_set_room need locking ? */
n_tty_set_room(tty);
timeout = schedule_timeout(timeout);
continue;
}
@ -1855,8 +1885,10 @@ do_it_again:
* longer than TTY_THRESHOLD_UNTHROTTLE in canonical mode,
* we won't get any more characters.
*/
if (n_tty_chars_in_buffer(tty) <= TTY_THRESHOLD_UNTHROTTLE)
if (n_tty_chars_in_buffer(tty) <= TTY_THRESHOLD_UNTHROTTLE) {
n_tty_set_room(tty);
check_unthrottle(tty);
}
if (b - buf >= minimum)
break;
@ -1878,6 +1910,7 @@ do_it_again:
} else if (test_and_clear_bit(TTY_PUSH, &tty->flags))
goto do_it_again;
n_tty_set_room(tty);
return retval;
}

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