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

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: (342 commits) Staging: comedi: fix build errors Staging: udlfb: update to version 0.2.3 Staging: udlfb: fix some sparse warnings. Staging: udlfb: clean up checkpatch warnings in udlfb.c Staging: udlfb: clean up checkpatch warnings in udlfb.h Staging: udlfb: add udlfb driver to build Staging: add udlfb driver Staging: pata_rdc: remove pointless comments Staging: pata_rdc: remove DRIVER macros Staging: pata_rdc: remove dbgprintf macro Staging: pata_rdc: remove broken flag Staging: pata_rdc: fix build warnings Staging: pata_rdc: use PCI_DEVICE Staging: pata_rdc: remove function prototypes Staging: pata_rdc: coding style fixes Staging: pata_rdc: convert code to work in 2.6.29 Staging: pata_rdc: add driver to the build system Staging: add pata_rdc driver Staging: remove obsolete serqt_usb driver Staging: serqt_usb2 add the driver to the build ...
2026-05-01 15:00:59 -07:00 · 2009-06-19 17:48:32 -07:00
parent bee89ab228 c7a5d70796
commit fb20871a54
658 changed files with 165401 additions and 240309 deletions
@@ -5479,6 +5479,7 @@ STAGING SUBSYSTEM
 P:	Greg Kroah-Hartman
 M:	gregkh@suse.de
 T:	quilt kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/
+L:	devel@driverdev.osuosl.org
 S:	Maintained
 F:	drivers/staging/

@@ -85,6 +85,8 @@ source "drivers/staging/altpciechdma/Kconfig"

 source "drivers/staging/rtl8187se/Kconfig"

+source "drivers/staging/rtl8192su/Kconfig"
+
 source "drivers/staging/rspiusb/Kconfig"

 source "drivers/staging/mimio/Kconfig"
@@ -113,11 +115,19 @@ source "drivers/staging/heci/Kconfig"

 source "drivers/staging/line6/Kconfig"

-source "drivers/staging/serqt_usb/Kconfig"
-
 source "drivers/gpu/drm/radeon/Kconfig"

 source "drivers/staging/octeon/Kconfig"

+source "drivers/staging/serqt_usb2/Kconfig"
+
+source "drivers/staging/vt6655/Kconfig"
+
+source "drivers/staging/cpc-usb/Kconfig"
+
+source "drivers/staging/pata_rdc/Kconfig"
+
+source "drivers/staging/udlfb/Kconfig"
+
 endif # !STAGING_EXCLUDE_BUILD
 endif # STAGING
@@ -25,6 +25,7 @@ obj-$(CONFIG_ASUS_OLED)		+= asus_oled/
 obj-$(CONFIG_PANEL)		+= panel/
 obj-$(CONFIG_ALTERA_PCIE_CHDMA)	+= altpciechdma/
 obj-$(CONFIG_RTL8187SE)		+= rtl8187se/
+obj-$(CONFIG_RTL8192SU)		+= rtl8192su/
 obj-$(CONFIG_USB_RSPI)		+= rspiusb/
 obj-$(CONFIG_INPUT_MIMIO)	+= mimio/
 obj-$(CONFIG_TRANZPORT)		+= frontier/
@@ -39,5 +40,9 @@ obj-$(CONFIG_IDE_PHISON)	+= phison/
 obj-$(CONFIG_PLAN9AUTH)		+= p9auth/
 obj-$(CONFIG_HECI)		+= heci/
 obj-$(CONFIG_LINE6_USB)		+= line6/
-obj-$(CONFIG_USB_SERIAL_QUATECH_ESU100)	+= serqt_usb/
+obj-$(CONFIG_USB_SERIAL_QUATECH2)	+= serqt_usb2/
 obj-$(CONFIG_OCTEON_ETHERNET)	+= octeon/
+obj-$(CONFIG_VT6655)		+= vt6655/
+obj-$(CONFIG_USB_CPC)		+= cpc-usb/
+obj-$(CONFIG_RDC_17F3101X)	+= pata_rdc/
+obj-$(CONFIG_FB_UDL)		+= udlfb/
@@ -312,7 +312,6 @@ static inline void dump_ieee80211_hdr(struct ieee80211_hdr *hdr, char *tag)
 {
 	u16 fctl;
 	int hdrlen;
-	DECLARE_MAC_BUF(mac);

 	fctl = le16_to_cpu(hdr->frame_control);
 	switch (fctl & IEEE80211_FCTL_FTYPE) {
@@ -375,13 +374,13 @@ static inline void dump_ieee80211_hdr(struct ieee80211_hdr *hdr, char *tag)
 		printk("FC=0x%04x DUR=0x%04x",
 		       fctl, le16_to_cpu(hdr->duration_id));
 	if (hdrlen >= 10)
-		printk(" A1=%s", print_mac(mac, hdr->addr1));
+		printk(" A1=%pM", hdr->addr1);
 	if (hdrlen >= 16)
-		printk(" A2=%s", print_mac(mac, hdr->addr2));
+		printk(" A2=%pM", hdr->addr2);
 	if (hdrlen >= 24)
-		printk(" A3=%s", print_mac(mac, hdr->addr3));
+		printk(" A3=%pM", hdr->addr3);
 	if (hdrlen >= 30)
-		printk(" A4=%s", print_mac(mac, hdr->addr4));
+		printk(" A4=%pM", hdr->addr4);
 	printk("\n");
 }

@@ -58,15 +58,17 @@ static inline void agnx_interrupt_ack(struct agnx_priv *priv, u32 *reason)
 			*reason |= AGNX_STAT_TXM;
 		}
 	}
-/*	if (*reason & AGNX_STAT_X) {
+#if 0
+	if (*reason & AGNX_STAT_X) {
 		reg = ioread32(ctl + AGNX_INT_STAT);
 		iowrite32(reg, ctl + AGNX_INT_STAT);
-		/* FIXME reinit interrupt mask *\/
+		/* FIXME reinit interrupt mask */
 		reg = 0xc390bf9 & ~IRQ_TX_BEACON;
 		reg &= ~IRQ_TX_DISABLE;
 		iowrite32(reg, ctl + AGNX_INT_MASK);
 		iowrite32(0x800, ctl + AGNX_CIR_BLKCTL);
-	} */
+	}
+#endif
 } /* agnx_interrupt_ack */

 static irqreturn_t agnx_interrupt_handler(int irq, void *dev_id)
@@ -150,8 +152,7 @@ static int agnx_get_mac_address(struct agnx_priv *priv)
 	*((u32 *)(priv->mac_addr + 2)) = cpu_to_le32(reg);

 	if (!is_valid_ether_addr(priv->mac_addr)) {
-		DECLARE_MAC_BUF(mbuf);
-		printk(KERN_WARNING PFX "read mac %s\n", print_mac(mbuf, priv->mac_addr));
+		printk(KERN_WARNING PFX "read mac %pM\n", priv->mac_addr);
 		printk(KERN_WARNING PFX "Invalid hwaddr! Using random hwaddr\n");
 		random_ether_addr(priv->mac_addr);
 	}
@@ -220,7 +221,7 @@ static void agnx_periodic_work_handler(struct work_struct *work)
 	/* TODO Recalibrate*/
 /*	calibrate_oscillator(priv); */
 /*	antenna_calibrate(priv); */
-/*	agnx_send_packet(priv, 997); /
+/*	agnx_send_packet(priv, 997); */
 	/* FIXME */
 /* 	if (debug == 3) */
 /*                 delay = msecs_to_jiffies(AGNX_PERIODIC_DELAY); */
@@ -455,47 +456,35 @@ static int __devinit agnx_pci_probe(struct pci_dev *pdev,
 {
 	struct ieee80211_hw *dev;
 	struct agnx_priv *priv;
-	u32 mem_addr0, mem_len0;
-	u32 mem_addr1, mem_len1;
 	int err;
-	DECLARE_MAC_BUF(mac);

 	err = pci_enable_device(pdev);
 	if (err) {
-		printk(KERN_ERR PFX "Can't enable new PCI device\n");
+		dev_err(&pdev->dev, "can't enable pci device\n");
 		return err;
 	}

-	/* get pci resource */
-	mem_addr0 = pci_resource_start(pdev, 0);
-	mem_len0 = pci_resource_len(pdev, 0);
-	mem_addr1 = pci_resource_start(pdev, 1);
-	mem_len1 = pci_resource_len(pdev, 1);
-	printk(KERN_DEBUG PFX "Memaddr0 is %x, length is %x\n", mem_addr0, mem_len0);
-	printk(KERN_DEBUG PFX "Memaddr1 is %x, length is %x\n", mem_addr1, mem_len1);
-
 	err = pci_request_regions(pdev, "agnx-pci");
 	if (err) {
-		printk(KERN_ERR PFX "Can't obtain PCI resource\n");
+		dev_err(&pdev->dev, "can't reserve PCI resources\n");
 		return err;
 	}

 	if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) ||
 	    pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
-		printk(KERN_ERR PFX "No suitable DMA available\n");
+		dev_err(&pdev->dev, "no suitable DMA available\n");
+		err = -EIO;
 		goto err_free_reg;
 	}

 	pci_set_master(pdev);
-	printk(KERN_DEBUG PFX "pdev->irq is %d\n", pdev->irq);

 	dev = ieee80211_alloc_hw(sizeof(*priv), &agnx_ops);
 	if (!dev) {
-		printk(KERN_ERR PFX "ieee80211 alloc failed\n");
+		dev_err(&pdev->dev, "ieee80211 alloc failed\n");
 		err = -ENOMEM;
 		goto err_free_reg;
 	}
-	/* init priv  */
 	priv = dev->priv;
 	memset(priv, 0, sizeof(*priv));
 	priv->mode = NL80211_IFTYPE_MONITOR;
@@ -504,17 +493,17 @@ static int __devinit agnx_pci_probe(struct pci_dev *pdev,
 	spin_lock_init(&priv->lock);
 	priv->init_status = AGNX_UNINIT;

-	/* Map mem #1 and #2 */
-	priv->ctl = pci_iomap(pdev, 0, mem_len0);
-/*	printk(KERN_DEBUG PFX"MEM1 mapped address is 0x%p\n", priv->ctl); */
+	priv->ctl = pci_iomap(pdev, 0, 0);
+/*	dev_dbg(&pdev->dev, "MEM1 mapped address is 0x%p\n", priv->ctl); */
 	if (!priv->ctl) {
-		printk(KERN_ERR PFX "Can't map device memory\n");
+		dev_err(&pdev->dev, "can't map device memory\n");
+		err = -ENOMEM;
 		goto err_free_dev;
 	}
-	priv->data = pci_iomap(pdev, 1, mem_len1);
-	printk(KERN_DEBUG PFX "MEM2 mapped address is 0x%p\n", priv->data);
+	priv->data = pci_iomap(pdev, 1, 0);
 	if (!priv->data) {
-		printk(KERN_ERR PFX "Can't map device memory\n");
+		dev_err(&pdev->dev, "can't map device memory\n");
+		err = -ENOMEM;
 		goto err_iounmap2;
 	}

@@ -555,15 +544,15 @@ static int __devinit agnx_pci_probe(struct pci_dev *pdev,

 	err = ieee80211_register_hw(dev);
 	if (err) {
-		printk(KERN_ERR PFX "Can't register hardware\n");
+		dev_err(&pdev->dev, "can't register hardware\n");
 		goto err_iounmap;
 	}

 	agnx_hw_reset(priv);

-
-	printk(PFX "%s: hwaddr %s, Rev 0x%02x\n", wiphy_name(dev->wiphy),
-	       print_mac(mac, dev->wiphy->perm_addr), priv->revid);
+	dev_info(&pdev->dev, "%s: hwaddr %pM, Rev 0x%02x\n",
+		wiphy_name(dev->wiphy),
+		dev->wiphy->perm_addr, priv->revid);
 	return 0;

 err_iounmap:
@@ -118,7 +118,7 @@ static void mac_address_set(struct agnx_priv *priv)
 	iowrite32(reg, ctl + AGNX_RXM_MACLO);
 }

-static void receiver_bssid_set(struct agnx_priv *priv, u8 *bssid)
+static void receiver_bssid_set(struct agnx_priv *priv, const u8 *bssid)
 {
 	void __iomem *ctl = priv->ctl;
 	u32 reg;
@@ -954,7 +954,7 @@ int agnx_set_ssid(struct agnx_priv *priv, u8 *ssid, size_t ssid_len)
 	return 0;
 }

-void agnx_set_bssid(struct agnx_priv *priv, u8 *bssid)
+void agnx_set_bssid(struct agnx_priv *priv, const u8 *bssid)
 {
 	receiver_bssid_set(priv, bssid);
 }
@@ -401,7 +401,7 @@ u8 read_from_eeprom(struct agnx_priv *priv, u16 address);
 void agnx_hw_init(struct agnx_priv *priv);
 int agnx_hw_reset(struct agnx_priv *priv);
 int agnx_set_ssid(struct agnx_priv *priv, u8 *ssid, size_t ssid_len);
-void agnx_set_bssid(struct agnx_priv *priv, u8 *bssid);
+void agnx_set_bssid(struct agnx_priv *priv, const u8 *bssid);
 void enable_power_saving(struct agnx_priv *priv);
 void disable_power_saving(struct agnx_priv *priv);
 void calibrate_antenna_period(unsigned long data);
@@ -22,7 +22,7 @@ void hash_read(struct agnx_priv *priv, u32 reghi, u32 reglo, u8 sta_id)
 	printk(PFX "RX hash cmd are : %.8x%.8x\n", reghi, reglo);
 }

-void hash_write(struct agnx_priv *priv, u8 *mac_addr, u8 sta_id)
+void hash_write(struct agnx_priv *priv, const u8 *mac_addr, u8 sta_id)
 {
 	void __iomem *ctl = priv->ctl;
 	u32 reghi, reglo;
@@ -201,7 +201,7 @@ struct agnx_beacon_hdr {
 	/* 802.11(abg) beacon */
 } __attribute__((__packed__));

-void hash_write(struct agnx_priv *priv, u8 *mac_addr, u8 sta_id);
+void hash_write(struct agnx_priv *priv, const u8 *mac_addr, u8 sta_id);
 void hash_dump(struct agnx_priv *priv, u8 sta_id);
 void hash_read(struct agnx_priv *priv, u32 reghi, u32 reglo, u8 sta_id);
 void hash_delete(struct agnx_priv *priv, u32 reghi, u32 reglo, u8 sta_id);
@@ -399,6 +399,7 @@ static inline void ape_chdma_desc_set(struct ape_chdma_desc *desc, dma_addr_t ad
 	desc->rc_addr_l = cpu_to_le32(pci_dma_l(addr));
 }

+#if ALTPCIECHDMA_CDEV
 /*
 * ape_sg_to_chdma_table() - Create a device descriptor table from a scatterlist.
 *
@@ -456,6 +457,7 @@ static int ape_sg_to_chdma_table(struct scatterlist *sgl, int nents, int first,
 	j++;
 	return j;
 }
+#endif

 /* compare buffers */
 static inline int compare(u32 *p, u32 *q, int len)
@@ -540,8 +542,8 @@ static int __devinit dma_test(struct ape_dev *ape, struct pci_dev *dev)
 		printk(KERN_DEBUG "Could not allocate coherent DMA buffer.\n");
 		goto fail;
 	}
-	printk(KERN_DEBUG "Allocated cache-coherent DMA buffer (virtual address = 0x%016llx, bus address = 0x%016llx).\n",
-		(u64)buffer_virt, (u64)buffer_bus);
+	printk(KERN_DEBUG "Allocated cache-coherent DMA buffer (virtual address = %p, bus address = 0x%016llx).\n",
+	       buffer_virt, (u64)buffer_bus);

 	/* fill first half of buffer with its virtual address as data */
 	for (i = 0; i < 4 * PAGE_SIZE; i += 4)
@@ -783,7 +785,7 @@ static int __devinit probe(struct pci_dev *dev, const struct pci_device_id *id)
 		goto err_ape;
 	}
 	ape->pci_dev = dev;
-	dev->dev.driver_data = (void *)ape;
+	dev_set_drvdata(&dev->dev, ape);
 	printk(KERN_DEBUG "probe() ape = 0x%p\n", ape);

 	printk(KERN_DEBUG "sizeof(struct ape_chdma_table) = %d.\n",
@@ -801,8 +803,8 @@ static int __devinit probe(struct pci_dev *dev, const struct pci_device_id *id)
 		goto err_table;
 	}

-	printk(KERN_DEBUG "table_virt = 0x%16llx, table_bus = 0x%16llx.\n",
-		(u64)ape->table_virt, (u64)ape->table_bus);
+	printk(KERN_DEBUG "table_virt = %p, table_bus = 0x%16llx.\n",
+		ape->table_virt, (u64)ape->table_bus);

 	/* enable device */
 	rc = pci_enable_device(dev);
@@ -913,9 +915,11 @@ static int __devinit probe(struct pci_dev *dev, const struct pci_device_id *id)
 	rc = 0;
 	printk(KERN_DEBUG "probe() successful.\n");
 	goto end;
+#if ALTPCIECHDMA_CDEV
 err_cdev:
 	/* unmap the BARs */
 	unmap_bars(ape, dev);
+#endif
 err_map:
 	/* free allocated irq */
 	if (ape->irq_line >= 0)
@@ -930,7 +934,7 @@ err_irq:
 		pci_release_regions(dev);
 err_mask:
 err_regions:
-err_rev:
+/*err_rev:*/
 /* clean up everything before device enable() */
 err_enable:
 	if (ape->table_virt)
@@ -946,19 +950,11 @@ end:

 static void __devexit remove(struct pci_dev *dev)
 {
-	struct ape_dev *ape;
+	struct ape_dev *ape = dev_get_drvdata(&dev->dev);
+
 	printk(KERN_DEBUG "remove(0x%p)\n", dev);
-	if ((dev == 0) || (dev->dev.driver_data == 0)) {
-		printk(KERN_DEBUG "remove(dev = 0x%p) dev->dev.driver_data = 0x%p\n",
-			dev, (dev? dev->dev.driver_data: NULL));
-		return;
-	}
-	ape = (struct ape_dev *)dev->dev.driver_data;
-	printk(KERN_DEBUG "remove(dev = 0x%p) where dev->dev.driver_data = 0x%p\n", dev, ape);
-	if (ape->pci_dev != dev) {
-		printk(KERN_DEBUG "dev->dev.driver_data->pci_dev (0x%08lx) != dev (0x%08lx)\n",
-		(unsigned long)ape->pci_dev, (unsigned long)dev);
-	}
+	printk(KERN_DEBUG "remove(dev = 0x%p) where ape = 0x%p\n", dev, ape);
+
 	/* remove character device */
 #if ALTPCIECHDMA_CDEV
 	sg_exit(ape);
@@ -1151,7 +1147,7 @@ static struct pci_driver pci_driver = {
 	.name = DRV_NAME,
 	.id_table = ids,
 	.probe = probe,
-	.remove = remove,
+	.remove = __devexit_p(remove),
 	/* resume, suspend are optional */
 };

@@ -6,6 +6,8 @@ config ANDROID
 	---help---
 	  Enable support for various drivers needed on the Android platform

+if ANDROID
+
 config ANDROID_BINDER_IPC
 	bool "Android Binder IPC Driver"
 	default n
@@ -73,9 +75,13 @@ config ANDROID_RAM_CONSOLE_EARLY_SIZE
 	default 0
 	depends on ANDROID_RAM_CONSOLE_EARLY_INIT

+config ANDROID_TIMED_OUTPUT
+	bool "Timed output class driver"
+	default y
+
 config ANDROID_TIMED_GPIO
 	tristate "Android timed gpio driver"
-	depends on GENERIC_GPIO
+	depends on GENERIC_GPIO && ANDROID_TIMED_OUTPUT
 	default n

 config ANDROID_LOW_MEMORY_KILLER
@@ -84,4 +90,6 @@ config ANDROID_LOW_MEMORY_KILLER
 	---help---
 	  Register processes to be killed when memory is low

+endif # if ANDROID
+
 endmenu
@@ -1,5 +1,6 @@
 obj-$(CONFIG_ANDROID_BINDER_IPC)	+= binder.o
 obj-$(CONFIG_ANDROID_LOGGER)		+= logger.o
 obj-$(CONFIG_ANDROID_RAM_CONSOLE)	+= ram_console.o
+obj-$(CONFIG_ANDROID_TIMED_OUTPUT)	+= timed_output.o
 obj-$(CONFIG_ANDROID_TIMED_GPIO)	+= timed_gpio.o
 obj-$(CONFIG_ANDROID_LOW_MEMORY_KILLER)	+= lowmemorykiller.o
@@ -35,7 +35,7 @@
 * mutex 'mutex'.
 */
 struct logger_log {
-	unsigned char *		buffer;	/* the ring buffer itself */
+	unsigned char 		*buffer;/* the ring buffer itself */
 	struct miscdevice	misc;	/* misc device representing the log */
 	wait_queue_head_t	wq;	/* wait queue for readers */
 	struct list_head	readers; /* this log's readers */
@@ -52,7 +52,7 @@ struct logger_log {
 * reference counting. The structure is protected by log->mutex.
 */
 struct logger_reader {
-	struct logger_log *	log;	/* associated log */
+	struct logger_log	*log;	/* associated log */
 	struct list_head	list;	/* entry in logger_log's list */
 	size_t			r_off;	/* current read head offset */
 };
@@ -74,7 +74,7 @@ struct logger_reader {
 * file->logger_log. Thus what file->private_data points at depends on whether
 * or not the file was opened for reading. This function hides that dirtiness.
 */
-static inline struct logger_log * file_get_log(struct file *file)
+static inline struct logger_log *file_get_log(struct file *file)
 {
 	if (file->f_mode & FMODE_READ) {
 		struct logger_reader *reader = file->private_data;
@@ -379,7 +379,7 @@ ssize_t logger_aio_write(struct kiocb *iocb, const struct iovec *iov,
 	return ret;
 }

-static struct logger_log * get_log_from_minor(int);
+static struct logger_log *get_log_from_minor(int);

 /*
 * logger_open - the log's open() file operation
@@ -519,7 +519,7 @@ static long logger_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 	return ret;
 }

-static struct file_operations logger_fops = {
+static const struct file_operations logger_fops = {
 	.owner = THIS_MODULE,
 	.read = logger_read,
 	.aio_write = logger_aio_write,
@@ -557,7 +557,7 @@ DEFINE_LOGGER_DEVICE(log_main, LOGGER_LOG_MAIN, 64*1024)
 DEFINE_LOGGER_DEVICE(log_events, LOGGER_LOG_EVENTS, 256*1024)
 DEFINE_LOGGER_DEVICE(log_radio, LOGGER_LOG_RADIO, 64*1024)

-static struct logger_log * get_log_from_minor(int minor)
+static struct logger_log *get_log_from_minor(int minor)
 {
 	if (log_main.misc.minor == minor)
 		return &log_main;
@@ -34,18 +34,24 @@ static int lowmem_adj[6] = {
 };
 static int lowmem_adj_size = 4;
 static size_t lowmem_minfree[6] = {
-	3*512, // 6MB
-	2*1024, // 8MB
-	4*1024, // 16MB
-	16*1024, // 64MB
+	3 * 512,	/* 6MB */
+	2 * 1024,	/* 8MB */
+	4 * 1024,	/* 16MB */
+	16 * 1024,	/* 64MB */
 };
 static int lowmem_minfree_size = 4;

-#define lowmem_print(level, x...) do { if(lowmem_debug_level >= (level)) printk(x); } while(0)
+#define lowmem_print(level, x...)			\
+	do {						\
+		if (lowmem_debug_level >= (level))	\
+			printk(x);			\
+	} while (0)

 module_param_named(cost, lowmem_shrinker.seeks, int, S_IRUGO | S_IWUSR);
-module_param_array_named(adj, lowmem_adj, int, &lowmem_adj_size, S_IRUGO | S_IWUSR);
-module_param_array_named(minfree, lowmem_minfree, uint, &lowmem_minfree_size, S_IRUGO | S_IWUSR);
+module_param_array_named(adj, lowmem_adj, int, &lowmem_adj_size,
+			 S_IRUGO | S_IWUSR);
+module_param_array_named(minfree, lowmem_minfree, uint, &lowmem_minfree_size,
+			 S_IRUGO | S_IWUSR);
 module_param_named(debug_level, lowmem_debug_level, uint, S_IRUGO | S_IWUSR);

 static int lowmem_shrink(int nr_to_scan, gfp_t gfp_mask)
@@ -57,46 +63,77 @@ static int lowmem_shrink(int nr_to_scan, gfp_t gfp_mask)
 	int i;
 	int min_adj = OOM_ADJUST_MAX + 1;
 	int selected_tasksize = 0;
+	int selected_oom_adj;
 	int array_size = ARRAY_SIZE(lowmem_adj);
-	int other_free = global_page_state(NR_FREE_PAGES) + global_page_state(NR_FILE_PAGES);
-	if(lowmem_adj_size < array_size)
+	int other_free = global_page_state(NR_FREE_PAGES);
+	int other_file = global_page_state(NR_FILE_PAGES);
+
+	if (lowmem_adj_size < array_size)
 		array_size = lowmem_adj_size;
-	if(lowmem_minfree_size < array_size)
+	if (lowmem_minfree_size < array_size)
 		array_size = lowmem_minfree_size;
-	for(i = 0; i < array_size; i++) {
-		if(other_free < lowmem_minfree[i]) {
+	for (i = 0; i < array_size; i++) {
+		if (other_free < lowmem_minfree[i] &&
+		    other_file < lowmem_minfree[i]) {
 			min_adj = lowmem_adj[i];
 			break;
 		}
 	}
-	if(nr_to_scan > 0)
-		lowmem_print(3, "lowmem_shrink %d, %x, ofree %d, ma %d\n", nr_to_scan, gfp_mask, other_free, min_adj);
+	if (nr_to_scan > 0)
+		lowmem_print(3, "lowmem_shrink %d, %x, ofree %d %d, ma %d\n",
+			     nr_to_scan, gfp_mask, other_free, other_file,
+			     min_adj);
+	rem = global_page_state(NR_ACTIVE_ANON) +
+		global_page_state(NR_ACTIVE_FILE) +
+		global_page_state(NR_INACTIVE_ANON) +
+		global_page_state(NR_INACTIVE_FILE);
+	if (nr_to_scan <= 0 || min_adj == OOM_ADJUST_MAX + 1) {
+		lowmem_print(5, "lowmem_shrink %d, %x, return %d\n",
+			     nr_to_scan, gfp_mask, rem);
+		return rem;
+	}
+	selected_oom_adj = min_adj;
+
 	read_lock(&tasklist_lock);
 	for_each_process(p) {
-		if(p->oomkilladj >= 0 && p->mm) {
-			tasksize = get_mm_rss(p->mm);
-			if(nr_to_scan > 0 && tasksize > 0 && p->oomkilladj >= min_adj) {
-				if(selected == NULL ||
-				   p->oomkilladj > selected->oomkilladj ||
-				   (p->oomkilladj == selected->oomkilladj &&
-				    tasksize > selected_tasksize)) {
-					selected = p;
-					selected_tasksize = tasksize;
-					lowmem_print(2, "select %d (%s), adj %d, size %d, to kill\n",
-					             p->pid, p->comm, p->oomkilladj, tasksize);
-				}
-			}
-			rem += tasksize;
+		int oom_adj;
+
+		task_lock(p);
+		if (!p->mm) {
+			task_unlock(p);
+			continue;
 		}
+		oom_adj = p->oomkilladj;
+		if (oom_adj < min_adj) {
+			task_unlock(p);
+			continue;
+		}
+		tasksize = get_mm_rss(p->mm);
+		task_unlock(p);
+		if (tasksize <= 0)
+			continue;
+		if (selected) {
+			if (oom_adj < selected_oom_adj)
+				continue;
+			if (oom_adj == selected_oom_adj &&
+			    tasksize <= selected_tasksize)
+				continue;
+		}
+		selected = p;
+		selected_tasksize = tasksize;
+		selected_oom_adj = oom_adj;
+		lowmem_print(2, "select %d (%s), adj %d, size %d, to kill\n",
+			     p->pid, p->comm, oom_adj, tasksize);
 	}
-	if(selected != NULL) {
+	if (selected) {
 		lowmem_print(1, "send sigkill to %d (%s), adj %d, size %d\n",
-		             selected->pid, selected->comm,
-		             selected->oomkilladj, selected_tasksize);
+			     selected->pid, selected->comm,
+			     selected_oom_adj, selected_tasksize);
 		force_sig(SIGKILL, selected);
 		rem -= selected_tasksize;
 	}
-	lowmem_print(4, "lowmem_shrink %d, %x, return %d\n", nr_to_scan, gfp_mask, rem);
+	lowmem_print(4, "lowmem_shrink %d, %x, return %d\n",
+		     nr_to_scan, gfp_mask, rem);
 	read_unlock(&tasklist_lock);
 	return rem;
 }
@@ -20,7 +20,7 @@
 #include <linux/proc_fs.h>
 #include <linux/string.h>
 #include <linux/uaccess.h>
-#include <asm/io.h>
+#include <linux/io.h>

 #ifdef CONFIG_ANDROID_RAM_CONSOLE_ERROR_CORRECTION
 #include <linux/rslib.h>
@@ -225,8 +225,9 @@ static int __init ram_console_init(struct ram_console_buffer *buffer,
 		buffer_size - sizeof(struct ram_console_buffer);

 	if (ram_console_buffer_size > buffer_size) {
-		pr_err("ram_console: buffer %p, invalid size %zu, datasize %zu\n",
-		       buffer, buffer_size, ram_console_buffer_size);
+		pr_err("ram_console: buffer %p, invalid size %zu, "
+		       "datasize %zu\n", buffer, buffer_size,
+		       ram_console_buffer_size);
 		return 0;
 	}

@@ -365,7 +366,7 @@ static ssize_t ram_console_read_old(struct file *file, char __user *buf,
 	return count;
 }

-static struct file_operations ram_console_file_ops = {
+static const struct file_operations ram_console_file_ops = {
 	.owner = THIS_MODULE,
 	.read = ram_console_read_old,
 };
@@ -20,13 +20,12 @@
 #include <linux/err.h>
 #include <linux/gpio.h>

+#include "timed_output.h"
 #include "timed_gpio.h"


-static struct class *timed_gpio_class;
-
 struct timed_gpio_data {
-	struct device *dev;
+	struct timed_output_dev dev;
 	struct hrtimer timer;
 	spinlock_t lock;
 	unsigned 	gpio;
@@ -36,70 +35,62 @@ struct timed_gpio_data {

 static enum hrtimer_restart gpio_timer_func(struct hrtimer *timer)
 {
-	struct timed_gpio_data *gpio_data = container_of(timer, struct timed_gpio_data, timer);
+	struct timed_gpio_data *data =
+		container_of(timer, struct timed_gpio_data, timer);

-	gpio_direction_output(gpio_data->gpio, gpio_data->active_low ? 1 : 0);
+	gpio_direction_output(data->gpio, data->active_low ? 1 : 0);
 	return HRTIMER_NORESTART;
 }

-static ssize_t gpio_enable_show(struct device *dev, struct device_attribute *attr, char *buf)
+static int gpio_get_time(struct timed_output_dev *dev)
 {
-	struct timed_gpio_data *gpio_data = dev_get_drvdata(dev);
-	int remaining;
+	struct timed_gpio_data	*data =
+		container_of(dev, struct timed_gpio_data, dev);

-	if (hrtimer_active(&gpio_data->timer)) {
-		ktime_t r = hrtimer_get_remaining(&gpio_data->timer);
+	if (hrtimer_active(&data->timer)) {
+		ktime_t r = hrtimer_get_remaining(&data->timer);
 		struct timeval t = ktime_to_timeval(r);
-		remaining = t.tv_sec * 1000 + t.tv_usec / 1000;
+		return t.tv_sec * 1000 + t.tv_usec / 1000;
 	} else
-		remaining = 0;
-
-	return sprintf(buf, "%d\n", remaining);
+		return 0;
 }

-static ssize_t gpio_enable_store(
-		struct device *dev, struct device_attribute *attr,
-		const char *buf, size_t size)
+static void gpio_enable(struct timed_output_dev *dev, int value)
 {
-	struct timed_gpio_data *gpio_data = dev_get_drvdata(dev);
-	int value;
+	struct timed_gpio_data	*data =
+		container_of(dev, struct timed_gpio_data, dev);
 	unsigned long	flags;

-	sscanf(buf, "%d", &value);
-
-	spin_lock_irqsave(&gpio_data->lock, flags);
+	spin_lock_irqsave(&data->lock, flags);

 	/* cancel previous timer and set GPIO according to value */
-	hrtimer_cancel(&gpio_data->timer);
-	gpio_direction_output(gpio_data->gpio, gpio_data->active_low ? !value : !!value);
+	hrtimer_cancel(&data->timer);
+	gpio_direction_output(data->gpio, data->active_low ? !value : !!value);

 	if (value > 0) {
-		if (value > gpio_data->max_timeout)
-			value = gpio_data->max_timeout;
+		if (value > data->max_timeout)
+			value = data->max_timeout;

-		hrtimer_start(&gpio_data->timer,
-						ktime_set(value / 1000, (value % 1000) * 1000000),
-						HRTIMER_MODE_REL);
+		hrtimer_start(&data->timer,
+			ktime_set(value / 1000, (value % 1000) * 1000000),
+			HRTIMER_MODE_REL);
 	}

-	spin_unlock_irqrestore(&gpio_data->lock, flags);
-
-	return size;
+	spin_unlock_irqrestore(&data->lock, flags);
 }

-static DEVICE_ATTR(enable, S_IRUGO | S_IWUSR, gpio_enable_show, gpio_enable_store);
-
 static int timed_gpio_probe(struct platform_device *pdev)
 {
 	struct timed_gpio_platform_data *pdata = pdev->dev.platform_data;
 	struct timed_gpio *cur_gpio;
 	struct timed_gpio_data *gpio_data, *gpio_dat;
-	int i, ret = 0;
+	int i, j, ret = 0;

 	if (!pdata)
 		return -EBUSY;

-	gpio_data = kzalloc(sizeof(struct timed_gpio_data) * pdata->num_gpios, GFP_KERNEL);
+	gpio_data = kzalloc(sizeof(struct timed_gpio_data) * pdata->num_gpios,
+			GFP_KERNEL);
 	if (!gpio_data)
 		return -ENOMEM;

@@ -107,23 +98,26 @@ static int timed_gpio_probe(struct platform_device *pdev)
 		cur_gpio = &pdata->gpios[i];
 		gpio_dat = &gpio_data[i];

-		hrtimer_init(&gpio_dat->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+		hrtimer_init(&gpio_dat->timer, CLOCK_MONOTONIC,
+				HRTIMER_MODE_REL);
 		gpio_dat->timer.function = gpio_timer_func;
 		spin_lock_init(&gpio_dat->lock);

+		gpio_dat->dev.name = cur_gpio->name;
+		gpio_dat->dev.get_time = gpio_get_time;
+		gpio_dat->dev.enable = gpio_enable;
+		ret = timed_output_dev_register(&gpio_dat->dev);
+		if (ret < 0) {
+			for (j = 0; j < i; j++)
+				timed_output_dev_unregister(&gpio_data[i].dev);
+			kfree(gpio_data);
+			return ret;
+		}
+
 		gpio_dat->gpio = cur_gpio->gpio;
 		gpio_dat->max_timeout = cur_gpio->max_timeout;
 		gpio_dat->active_low = cur_gpio->active_low;
 		gpio_direction_output(gpio_dat->gpio, gpio_dat->active_low);
-
-		gpio_dat->dev = device_create(timed_gpio_class, &pdev->dev, 0, "%s", cur_gpio->name);
-		if (unlikely(IS_ERR(gpio_dat->dev)))
-			return PTR_ERR(gpio_dat->dev);
-
-		dev_set_drvdata(gpio_dat->dev, gpio_dat);
-		ret = device_create_file(gpio_dat->dev, &dev_attr_enable);
-		if (ret)
-			return ret;
 	}

 	platform_set_drvdata(pdev, gpio_data);
@@ -137,10 +131,8 @@ static int timed_gpio_remove(struct platform_device *pdev)
 	struct timed_gpio_data *gpio_data = platform_get_drvdata(pdev);
 	int i;

-	for (i = 0; i < pdata->num_gpios; i++) {
-		device_remove_file(gpio_data[i].dev, &dev_attr_enable);
-		device_unregister(gpio_data[i].dev);
-	}
+	for (i = 0; i < pdata->num_gpios; i++)
+		timed_output_dev_unregister(&gpio_data[i].dev);

 	kfree(gpio_data);

@@ -151,22 +143,18 @@ static struct platform_driver timed_gpio_driver = {
 	.probe		= timed_gpio_probe,
 	.remove		= timed_gpio_remove,
 	.driver		= {
-		.name		= "timed-gpio",
+		.name		= TIMED_GPIO_NAME,
 		.owner		= THIS_MODULE,
 	},
 };

 static int __init timed_gpio_init(void)
 {
-	timed_gpio_class = class_create(THIS_MODULE, "timed_output");
-	if (IS_ERR(timed_gpio_class))
-		return PTR_ERR(timed_gpio_class);
 	return platform_driver_register(&timed_gpio_driver);
 }

 static void __exit timed_gpio_exit(void)
 {
-	class_destroy(timed_gpio_class);
 	platform_driver_unregister(&timed_gpio_driver);
 }

@@ -16,10 +16,12 @@
 #ifndef _LINUX_TIMED_GPIO_H
 #define _LINUX_TIMED_GPIO_H

+#define TIMED_GPIO_NAME "timed-gpio"
+
 struct timed_gpio {
 	const char *name;
 	unsigned 	gpio;
-	int     max_timeout;
+	int		max_timeout;
 	u8 		active_low;
 };

@@ -0,0 +1,121 @@
+/* drivers/misc/timed_output.c
+ *
+ * Copyright (C) 2009 Google, Inc.
+ * Author: Mike Lockwood <lockwood@android.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/device.h>
+#include <linux/fs.h>
+#include <linux/err.h>
+
+#include "timed_output.h"
+
+static struct class *timed_output_class;
+static atomic_t device_count;
+
+static ssize_t enable_show(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct timed_output_dev *tdev = dev_get_drvdata(dev);
+	int remaining = tdev->get_time(tdev);
+
+	return sprintf(buf, "%d\n", remaining);
+}
+
+static ssize_t enable_store(
+		struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t size)
+{
+	struct timed_output_dev *tdev = dev_get_drvdata(dev);
+	int value;
+
+	sscanf(buf, "%d", &value);
+	tdev->enable(tdev, value);
+
+	return size;
+}
+
+static DEVICE_ATTR(enable, S_IRUGO | S_IWUSR, enable_show, enable_store);
+
+static int create_timed_output_class(void)
+{
+	if (!timed_output_class) {
+		timed_output_class = class_create(THIS_MODULE, "timed_output");
+		if (IS_ERR(timed_output_class))
+			return PTR_ERR(timed_output_class);
+		atomic_set(&device_count, 0);
+	}
+
+	return 0;
+}
+
+int timed_output_dev_register(struct timed_output_dev *tdev)
+{
+	int ret;
+
+	if (!tdev || !tdev->name || !tdev->enable || !tdev->get_time)
+		return -EINVAL;
+
+	ret = create_timed_output_class();
+	if (ret < 0)
+		return ret;
+
+	tdev->index = atomic_inc_return(&device_count);
+	tdev->dev = device_create(timed_output_class, NULL,
+		MKDEV(0, tdev->index), NULL, tdev->name);
+	if (IS_ERR(tdev->dev))
+		return PTR_ERR(tdev->dev);
+
+	ret = device_create_file(tdev->dev, &dev_attr_enable);
+	if (ret < 0)
+		goto err_create_file;
+
+	dev_set_drvdata(tdev->dev, tdev);
+	tdev->state = 0;
+	return 0;
+
+err_create_file:
+	device_destroy(timed_output_class, MKDEV(0, tdev->index));
+	printk(KERN_ERR "timed_output: Failed to register driver %s\n",
+			tdev->name);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(timed_output_dev_register);
+
+void timed_output_dev_unregister(struct timed_output_dev *tdev)
+{
+	device_remove_file(tdev->dev, &dev_attr_enable);
+	device_destroy(timed_output_class, MKDEV(0, tdev->index));
+	dev_set_drvdata(tdev->dev, NULL);
+}
+EXPORT_SYMBOL_GPL(timed_output_dev_unregister);
+
+static int __init timed_output_init(void)
+{
+	return create_timed_output_class();
+}
+
+static void __exit timed_output_exit(void)
+{
+	class_destroy(timed_output_class);
+}
+
+module_init(timed_output_init);
+module_exit(timed_output_exit);
+
+MODULE_AUTHOR("Mike Lockwood <lockwood@android.com>");
+MODULE_DESCRIPTION("timed output class driver");
+MODULE_LICENSE("GPL");
@@ -0,0 +1,37 @@
+/* include/linux/timed_output.h
+ *
+ * Copyright (C) 2008 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+*/
+
+#ifndef _LINUX_TIMED_OUTPUT_H
+#define _LINUX_TIMED_OUTPUT_H
+
+struct timed_output_dev {
+	const char	*name;
+
+	/* enable the output and set the timer */
+	void	(*enable)(struct timed_output_dev *sdev, int timeout);
+
+	/* returns the current number of milliseconds remaining on the timer */
+	int		(*get_time)(struct timed_output_dev *sdev);
+
+	/* private data */
+	struct device	*dev;
+	int		index;
+	int		state;
+};
+
+extern int timed_output_dev_register(struct timed_output_dev *dev);
+extern void timed_output_dev_unregister(struct timed_output_dev *dev);
+
+#endif
--- a/Show More
+++ b/Show More