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authorLinus Torvalds <torvalds@linux-foundation.org>2009-03-26 11:11:23 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-03-26 11:11:23 -0700
commit928a726b0e12184729900c076e13dbf1c511c96c (patch)
treef31a7f23c1b511ebb486598cc746786e1821d48c /drivers
parent8ff64b539bfd998792614481ccb67139b97075ef (diff)
parenteaeed5d31d8ded02fa0a4b608f57418cc0e65b07 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (96 commits) sh: add support for SMSC Polaris platform sh: fix the HD64461 level-triggered interrupts handling sh: sh-rtc wakeup support sh: sh-rtc invalid time rework sh: sh-rtc carry interrupt rework sh: disallow kexec virtual entry sh: kexec jump: fix for ftrace. sh: kexec: Drop SR.BL bit toggling. sh: add kexec jump support sh: rework kexec segment code sh: simplify kexec vbr code sh: Flush only the needed range when unmapping a VMA. sh: Update debugfs ASID dumping for 16-bit ASID support. sh: tlb-pteaex: Kill off legacy PTEA updates. sh: Support for extended ASIDs on PTEAEX-capable SH-X3 cores. sh: sh7763rdp: Change IRQ number for sh_eth of sh7763rdp sh: espt-giga board support sh: dma: Make G2 DMA configurable. sh: dma: Make PVR2 DMA configurable. sh: Move IRQ multi definition of DMAC to defconfig ...
Diffstat (limited to 'drivers')
-rw-r--r--drivers/clocksource/Makefile1
-rw-r--r--drivers/clocksource/sh_cmt.c615
-rw-r--r--drivers/input/joystick/maplecontrol.c4
-rw-r--r--drivers/input/keyboard/maple_keyb.c37
-rw-r--r--drivers/input/keyboard/sh_keysc.c26
-rw-r--r--drivers/mtd/maps/Kconfig12
-rw-r--r--drivers/mtd/maps/Makefile1
-rw-r--r--drivers/mtd/maps/vmu-flash.c832
-rw-r--r--drivers/rtc/rtc-sh.c246
-rw-r--r--drivers/serial/sh-sci.c12
-rw-r--r--drivers/serial/sh-sci.h15
-rw-r--r--drivers/sh/intc.c47
-rw-r--r--drivers/sh/maple/maple.c472
-rw-r--r--drivers/sh/superhyway/superhyway.c4
-rw-r--r--drivers/usb/Kconfig1
-rw-r--r--drivers/usb/host/ohci-hcd.c3
-rw-r--r--drivers/video/pvr2fb.c16
-rw-r--r--drivers/video/sh_mobile_lcdcfb.c66
18 files changed, 2043 insertions, 367 deletions
diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile
index 1525882190fd..1efb2879a94f 100644
--- a/drivers/clocksource/Makefile
+++ b/drivers/clocksource/Makefile
@@ -2,3 +2,4 @@ obj-$(CONFIG_ATMEL_TCB_CLKSRC) += tcb_clksrc.o
obj-$(CONFIG_X86_CYCLONE_TIMER) += cyclone.o
obj-$(CONFIG_X86_PM_TIMER) += acpi_pm.o
obj-$(CONFIG_SCx200HR_TIMER) += scx200_hrt.o
+obj-$(CONFIG_SH_TIMER_CMT) += sh_cmt.o
diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c
new file mode 100644
index 000000000000..7783b42f6914
--- /dev/null
+++ b/drivers/clocksource/sh_cmt.c
@@ -0,0 +1,615 @@
+/*
+ * SuperH Timer Support - CMT
+ *
+ * Copyright (C) 2008 Magnus Damm
+ *
+ * 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
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/init.h>
+#include <linux/bootmem.h>
+#include <linux/platform_device.h>
+#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/io.h>
+#include <linux/clk.h>
+#include <linux/irq.h>
+#include <linux/err.h>
+#include <linux/clocksource.h>
+#include <linux/clockchips.h>
+#include <linux/sh_cmt.h>
+
+struct sh_cmt_priv {
+ void __iomem *mapbase;
+ struct clk *clk;
+ unsigned long width; /* 16 or 32 bit version of hardware block */
+ unsigned long overflow_bit;
+ unsigned long clear_bits;
+ struct irqaction irqaction;
+ struct platform_device *pdev;
+
+ unsigned long flags;
+ unsigned long match_value;
+ unsigned long next_match_value;
+ unsigned long max_match_value;
+ unsigned long rate;
+ spinlock_t lock;
+ struct clock_event_device ced;
+ unsigned long total_cycles;
+};
+
+static DEFINE_SPINLOCK(sh_cmt_lock);
+
+#define CMSTR -1 /* shared register */
+#define CMCSR 0 /* channel register */
+#define CMCNT 1 /* channel register */
+#define CMCOR 2 /* channel register */
+
+static inline unsigned long sh_cmt_read(struct sh_cmt_priv *p, int reg_nr)
+{
+ struct sh_cmt_config *cfg = p->pdev->dev.platform_data;
+ void __iomem *base = p->mapbase;
+ unsigned long offs;
+
+ if (reg_nr == CMSTR) {
+ offs = 0;
+ base -= cfg->channel_offset;
+ } else
+ offs = reg_nr;
+
+ if (p->width == 16)
+ offs <<= 1;
+ else {
+ offs <<= 2;
+ if ((reg_nr == CMCNT) || (reg_nr == CMCOR))
+ return ioread32(base + offs);
+ }
+
+ return ioread16(base + offs);
+}
+
+static inline void sh_cmt_write(struct sh_cmt_priv *p, int reg_nr,
+ unsigned long value)
+{
+ struct sh_cmt_config *cfg = p->pdev->dev.platform_data;
+ void __iomem *base = p->mapbase;
+ unsigned long offs;
+
+ if (reg_nr == CMSTR) {
+ offs = 0;
+ base -= cfg->channel_offset;
+ } else
+ offs = reg_nr;
+
+ if (p->width == 16)
+ offs <<= 1;
+ else {
+ offs <<= 2;
+ if ((reg_nr == CMCNT) || (reg_nr == CMCOR)) {
+ iowrite32(value, base + offs);
+ return;
+ }
+ }
+
+ iowrite16(value, base + offs);
+}
+
+static unsigned long sh_cmt_get_counter(struct sh_cmt_priv *p,
+ int *has_wrapped)
+{
+ unsigned long v1, v2, v3;
+
+ /* Make sure the timer value is stable. Stolen from acpi_pm.c */
+ do {
+ v1 = sh_cmt_read(p, CMCNT);
+ v2 = sh_cmt_read(p, CMCNT);
+ v3 = sh_cmt_read(p, CMCNT);
+ } while (unlikely((v1 > v2 && v1 < v3) || (v2 > v3 && v2 < v1)
+ || (v3 > v1 && v3 < v2)));
+
+ *has_wrapped = sh_cmt_read(p, CMCSR) & p->overflow_bit;
+ return v2;
+}
+
+
+static void sh_cmt_start_stop_ch(struct sh_cmt_priv *p, int start)
+{
+ struct sh_cmt_config *cfg = p->pdev->dev.platform_data;
+ unsigned long flags, value;
+
+ /* start stop register shared by multiple timer channels */
+ spin_lock_irqsave(&sh_cmt_lock, flags);
+ value = sh_cmt_read(p, CMSTR);
+
+ if (start)
+ value |= 1 << cfg->timer_bit;
+ else
+ value &= ~(1 << cfg->timer_bit);
+
+ sh_cmt_write(p, CMSTR, value);
+ spin_unlock_irqrestore(&sh_cmt_lock, flags);
+}
+
+static int sh_cmt_enable(struct sh_cmt_priv *p, unsigned long *rate)
+{
+ struct sh_cmt_config *cfg = p->pdev->dev.platform_data;
+ int ret;
+
+ /* enable clock */
+ ret = clk_enable(p->clk);
+ if (ret) {
+ pr_err("sh_cmt: cannot enable clock \"%s\"\n", cfg->clk);
+ return ret;
+ }
+ *rate = clk_get_rate(p->clk) / 8;
+
+ /* make sure channel is disabled */
+ sh_cmt_start_stop_ch(p, 0);
+
+ /* configure channel, periodic mode and maximum timeout */
+ if (p->width == 16)
+ sh_cmt_write(p, CMCSR, 0);
+ else
+ sh_cmt_write(p, CMCSR, 0x01a4);
+
+ sh_cmt_write(p, CMCOR, 0xffffffff);
+ sh_cmt_write(p, CMCNT, 0);
+
+ /* enable channel */
+ sh_cmt_start_stop_ch(p, 1);
+ return 0;
+}
+
+static void sh_cmt_disable(struct sh_cmt_priv *p)
+{
+ /* disable channel */
+ sh_cmt_start_stop_ch(p, 0);
+
+ /* stop clock */
+ clk_disable(p->clk);
+}
+
+/* private flags */
+#define FLAG_CLOCKEVENT (1 << 0)
+#define FLAG_CLOCKSOURCE (1 << 1)
+#define FLAG_REPROGRAM (1 << 2)
+#define FLAG_SKIPEVENT (1 << 3)
+#define FLAG_IRQCONTEXT (1 << 4)
+
+static void sh_cmt_clock_event_program_verify(struct sh_cmt_priv *p,
+ int absolute)
+{
+ unsigned long new_match;
+ unsigned long value = p->next_match_value;
+ unsigned long delay = 0;
+ unsigned long now = 0;
+ int has_wrapped;
+
+ now = sh_cmt_get_counter(p, &has_wrapped);
+ p->flags |= FLAG_REPROGRAM; /* force reprogram */
+
+ if (has_wrapped) {
+ /* we're competing with the interrupt handler.
+ * -> let the interrupt handler reprogram the timer.
+ * -> interrupt number two handles the event.
+ */
+ p->flags |= FLAG_SKIPEVENT;
+ return;
+ }
+
+ if (absolute)
+ now = 0;
+
+ do {
+ /* reprogram the timer hardware,
+ * but don't save the new match value yet.
+ */
+ new_match = now + value + delay;
+ if (new_match > p->max_match_value)
+ new_match = p->max_match_value;
+
+ sh_cmt_write(p, CMCOR, new_match);
+
+ now = sh_cmt_get_counter(p, &has_wrapped);
+ if (has_wrapped && (new_match > p->match_value)) {
+ /* we are changing to a greater match value,
+ * so this wrap must be caused by the counter
+ * matching the old value.
+ * -> first interrupt reprograms the timer.
+ * -> interrupt number two handles the event.
+ */
+ p->flags |= FLAG_SKIPEVENT;
+ break;
+ }
+
+ if (has_wrapped) {
+ /* we are changing to a smaller match value,
+ * so the wrap must be caused by the counter
+ * matching the new value.
+ * -> save programmed match value.
+ * -> let isr handle the event.
+ */
+ p->match_value = new_match;
+ break;
+ }
+
+ /* be safe: verify hardware settings */
+ if (now < new_match) {
+ /* timer value is below match value, all good.
+ * this makes sure we won't miss any match events.
+ * -> save programmed match value.
+ * -> let isr handle the event.
+ */
+ p->match_value = new_match;
+ break;
+ }
+
+ /* the counter has reached a value greater
+ * than our new match value. and since the
+ * has_wrapped flag isn't set we must have
+ * programmed a too close event.
+ * -> increase delay and retry.
+ */
+ if (delay)
+ delay <<= 1;
+ else
+ delay = 1;
+
+ if (!delay)
+ pr_warning("sh_cmt: too long delay\n");
+
+ } while (delay);
+}
+
+static void sh_cmt_set_next(struct sh_cmt_priv *p, unsigned long delta)
+{
+ unsigned long flags;
+
+ if (delta > p->max_match_value)
+ pr_warning("sh_cmt: delta out of range\n");
+
+ spin_lock_irqsave(&p->lock, flags);
+ p->next_match_value = delta;
+ sh_cmt_clock_event_program_verify(p, 0);
+ spin_unlock_irqrestore(&p->lock, flags);
+}
+
+static irqreturn_t sh_cmt_interrupt(int irq, void *dev_id)
+{
+ struct sh_cmt_priv *p = dev_id;
+
+ /* clear flags */
+ sh_cmt_write(p, CMCSR, sh_cmt_read(p, CMCSR) & p->clear_bits);
+
+ /* update clock source counter to begin with if enabled
+ * the wrap flag should be cleared by the timer specific
+ * isr before we end up here.
+ */
+ if (p->flags & FLAG_CLOCKSOURCE)
+ p->total_cycles += p->match_value;
+
+ if (!(p->flags & FLAG_REPROGRAM))
+ p->next_match_value = p->max_match_value;
+
+ p->flags |= FLAG_IRQCONTEXT;
+
+ if (p->flags & FLAG_CLOCKEVENT) {
+ if (!(p->flags & FLAG_SKIPEVENT)) {
+ if (p->ced.mode == CLOCK_EVT_MODE_ONESHOT) {
+ p->next_match_value = p->max_match_value;
+ p->flags |= FLAG_REPROGRAM;
+ }
+
+ p->ced.event_handler(&p->ced);
+ }
+ }
+
+ p->flags &= ~FLAG_SKIPEVENT;
+
+ if (p->flags & FLAG_REPROGRAM) {
+ p->flags &= ~FLAG_REPROGRAM;
+ sh_cmt_clock_event_program_verify(p, 1);
+
+ if (p->flags & FLAG_CLOCKEVENT)
+ if ((p->ced.mode == CLOCK_EVT_MODE_SHUTDOWN)
+ || (p->match_value == p->next_match_value))
+ p->flags &= ~FLAG_REPROGRAM;
+ }
+
+ p->flags &= ~FLAG_IRQCONTEXT;
+
+ return IRQ_HANDLED;
+}
+
+static int sh_cmt_start(struct sh_cmt_priv *p, unsigned long flag)
+{
+ int ret = 0;
+ unsigned long flags;
+
+ spin_lock_irqsave(&p->lock, flags);
+
+ if (!(p->flags & (FLAG_CLOCKEVENT | FLAG_CLOCKSOURCE)))
+ ret = sh_cmt_enable(p, &p->rate);
+
+ if (ret)
+ goto out;
+ p->flags |= flag;
+
+ /* setup timeout if no clockevent */
+ if ((flag == FLAG_CLOCKSOURCE) && (!(p->flags & FLAG_CLOCKEVENT)))
+ sh_cmt_set_next(p, p->max_match_value);
+ out:
+ spin_unlock_irqrestore(&p->lock, flags);
+
+ return ret;
+}
+
+static void sh_cmt_stop(struct sh_cmt_priv *p, unsigned long flag)
+{
+ unsigned long flags;
+ unsigned long f;
+
+ spin_lock_irqsave(&p->lock, flags);
+
+ f = p->flags & (FLAG_CLOCKEVENT | FLAG_CLOCKSOURCE);
+ p->flags &= ~flag;
+
+ if (f && !(p->flags & (FLAG_CLOCKEVENT | FLAG_CLOCKSOURCE)))
+ sh_cmt_disable(p);
+
+ /* adjust the timeout to maximum if only clocksource left */
+ if ((flag == FLAG_CLOCKEVENT) && (p->flags & FLAG_CLOCKSOURCE))
+ sh_cmt_set_next(p, p->max_match_value);
+
+ spin_unlock_irqrestore(&p->lock, flags);
+}
+
+static struct sh_cmt_priv *ced_to_sh_cmt(struct clock_event_device *ced)
+{
+ return container_of(ced, struct sh_cmt_priv, ced);
+}
+
+static void sh_cmt_clock_event_start(struct sh_cmt_priv *p, int periodic)
+{
+ struct clock_event_device *ced = &p->ced;
+
+ sh_cmt_start(p, FLAG_CLOCKEVENT);
+
+ /* TODO: calculate good shift from rate and counter bit width */
+
+ ced->shift = 32;
+ ced->mult = div_sc(p->rate, NSEC_PER_SEC, ced->shift);
+ ced->max_delta_ns = clockevent_delta2ns(p->max_match_value, ced);
+ ced->min_delta_ns = clockevent_delta2ns(0x1f, ced);
+
+ if (periodic)
+ sh_cmt_set_next(p, (p->rate + HZ/2) / HZ);
+ else
+ sh_cmt_set_next(p, p->max_match_value);
+}
+
+static void sh_cmt_clock_event_mode(enum clock_event_mode mode,
+ struct clock_event_device *ced)
+{
+ struct sh_cmt_priv *p = ced_to_sh_cmt(ced);
+
+ /* deal with old setting first */
+ switch (ced->mode) {
+ case CLOCK_EVT_MODE_PERIODIC:
+ case CLOCK_EVT_MODE_ONESHOT:
+ sh_cmt_stop(p, FLAG_CLOCKEVENT);
+ break;
+ default:
+ break;
+ }
+
+ switch (mode) {
+ case CLOCK_EVT_MODE_PERIODIC:
+ pr_info("sh_cmt: %s used for periodic clock events\n",
+ ced->name);
+ sh_cmt_clock_event_start(p, 1);
+ break;
+ case CLOCK_EVT_MODE_ONESHOT:
+ pr_info("sh_cmt: %s used for oneshot clock events\n",
+ ced->name);
+ sh_cmt_clock_event_start(p, 0);
+ break;
+ case CLOCK_EVT_MODE_SHUTDOWN:
+ case CLOCK_EVT_MODE_UNUSED:
+ sh_cmt_stop(p, FLAG_CLOCKEVENT);
+ break;
+ default:
+ break;
+ }
+}
+
+static int sh_cmt_clock_event_next(unsigned long delta,
+ struct clock_event_device *ced)
+{
+ struct sh_cmt_priv *p = ced_to_sh_cmt(ced);
+
+ BUG_ON(ced->mode != CLOCK_EVT_MODE_ONESHOT);
+ if (likely(p->flags & FLAG_IRQCONTEXT))
+ p->next_match_value = delta;
+ else
+ sh_cmt_set_next(p, delta);
+
+ return 0;
+}
+
+static void sh_cmt_register_clockevent(struct sh_cmt_priv *p,
+ char *name, unsigned long rating)
+{
+ struct clock_event_device *ced = &p->ced;
+
+ memset(ced, 0, sizeof(*ced));
+
+ ced->name = name;
+ ced->features = CLOCK_EVT_FEAT_PERIODIC;
+ ced->features |= CLOCK_EVT_FEAT_ONESHOT;
+ ced->rating = rating;
+ ced->cpumask = cpumask_of(0);
+ ced->set_next_event = sh_cmt_clock_event_next;
+ ced->set_mode = sh_cmt_clock_event_mode;
+
+ pr_info("sh_cmt: %s used for clock events\n", ced->name);
+ ced->mult = 1; /* work around misplaced WARN_ON() in clockevents.c */
+ clockevents_register_device(ced);
+}
+
+int sh_cmt_register(struct sh_cmt_priv *p, char *name,
+ unsigned long clockevent_rating,
+ unsigned long clocksource_rating)
+{
+ if (p->width == (sizeof(p->max_match_value) * 8))
+ p->max_match_value = ~0;
+ else
+ p->max_match_value = (1 << p->width) - 1;
+
+ p->match_value = p->max_match_value;
+ spin_lock_init(&p->lock);
+
+ if (clockevent_rating)
+ sh_cmt_register_clockevent(p, name, clockevent_rating);
+
+ return 0;
+}
+
+static int sh_cmt_setup(struct sh_cmt_priv *p, struct platform_device *pdev)
+{
+ struct sh_cmt_config *cfg = pdev->dev.platform_data;
+ struct resource *res;
+ int irq, ret;
+ ret = -ENXIO;
+
+ memset(p, 0, sizeof(*p));
+ p->pdev = pdev;
+
+ if (!cfg) {
+ dev_err(&p->pdev->dev, "missing platform data\n");
+ goto err0;
+ }
+
+ platform_set_drvdata(pdev, p);
+
+ res = platform_get_resource(p->pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&p->pdev->dev, "failed to get I/O memory\n");
+ goto err0;
+ }
+
+ irq = platform_get_irq(p->pdev, 0);
+ if (irq < 0) {
+ dev_err(&p->pdev->dev, "failed to get irq\n");
+ goto err0;
+ }
+
+ /* map memory, let mapbase point to our channel */
+ p->mapbase = ioremap_nocache(res->start, resource_size(res));
+ if (p->mapbase == NULL) {
+ pr_err("sh_cmt: failed to remap I/O memory\n");
+ goto err0;
+ }
+
+ /* request irq using setup_irq() (too early for request_irq()) */
+ p->irqaction.name = cfg->name;
+ p->irqaction.handler = sh_cmt_interrupt;
+ p->irqaction.dev_id = p;
+ p->irqaction.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL;
+ p->irqaction.mask = CPU_MASK_NONE;
+ ret = setup_irq(irq, &p->irqaction);
+ if (ret) {
+ pr_err("sh_cmt: failed to request irq %d\n", irq);
+ goto err1;
+ }
+
+ /* get hold of clock */
+ p->clk = clk_get(&p->pdev->dev, cfg->clk);
+ if (IS_ERR(p->clk)) {
+ pr_err("sh_cmt: cannot get clock \"%s\"\n", cfg->clk);
+ ret = PTR_ERR(p->clk);
+ goto err2;
+ }
+
+ if (resource_size(res) == 6) {
+ p->width = 16;
+ p->overflow_bit = 0x80;
+ p->clear_bits = ~0xc0;
+ } else {
+ p->width = 32;
+ p->overflow_bit = 0x8000;
+ p->clear_bits = ~0xc000;
+ }
+
+ return sh_cmt_register(p, cfg->name,
+ cfg->clockevent_rating,
+ cfg->clocksource_rating);
+ err2:
+ free_irq(irq, p);
+ err1:
+ iounmap(p->mapbase);
+ err0:
+ return ret;
+}
+
+static int __devinit sh_cmt_probe(struct platform_device *pdev)
+{
+ struct sh_cmt_priv *p = platform_get_drvdata(pdev);
+ int ret;
+
+ p = kmalloc(sizeof(*p), GFP_KERNEL);
+ if (p == NULL) {
+ dev_err(&pdev->dev, "failed to allocate driver data\n");
+ return -ENOMEM;
+ }
+
+ ret = sh_cmt_setup(p, pdev);
+ if (ret) {
+ kfree(p);
+
+ platform_set_drvdata(pdev, NULL);
+ }
+ return ret;
+}
+
+static int __devexit sh_cmt_remove(struct platform_device *pdev)
+{
+ return -EBUSY; /* cannot unregister clockevent and clocksource */
+}
+
+static struct platform_driver sh_cmt_device_driver = {
+ .probe = sh_cmt_probe,
+ .remove = __devexit_p(sh_cmt_remove),
+ .driver = {
+ .name = "sh_cmt",
+ }
+};
+
+static int __init sh_cmt_init(void)
+{
+ return platform_driver_register(&sh_cmt_device_driver);
+}
+
+static void __exit sh_cmt_exit(void)
+{
+ platform_driver_unregister(&sh_cmt_device_driver);
+}
+
+module_init(sh_cmt_init);
+module_exit(sh_cmt_exit);
+
+MODULE_AUTHOR("Magnus Damm");
+MODULE_DESCRIPTION("SuperH CMT Timer Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/input/joystick/maplecontrol.c b/drivers/input/joystick/maplecontrol.c
index e50047bfe938..77cfde571bd9 100644
--- a/drivers/input/joystick/maplecontrol.c
+++ b/drivers/input/joystick/maplecontrol.c
@@ -3,7 +3,7 @@
* Based on drivers/usb/iforce.c
*
* Copyright Yaegashi Takeshi, 2001
- * Adrian McMenamin, 2008
+ * Adrian McMenamin, 2008 - 2009
*/
#include <linux/kernel.h>
@@ -29,7 +29,7 @@ static void dc_pad_callback(struct mapleq *mq)
struct maple_device *mapledev = mq->dev;
struct dc_pad *pad = maple_get_drvdata(mapledev);
struct input_dev *dev = pad->dev;
- unsigned char *res = mq->recvbuf;
+ unsigned char *res = mq->recvbuf->buf;
buttons = ~le16_to_cpup((__le16 *)(res + 8));
diff --git a/drivers/input/keyboard/maple_keyb.c b/drivers/input/keyboard/maple_keyb.c
index 22f17a593be7..5aa2361aef95 100644
--- a/drivers/input/keyboard/maple_keyb.c
+++ b/drivers/input/keyboard/maple_keyb.c
@@ -1,8 +1,8 @@
/*
* SEGA Dreamcast keyboard driver
* Based on drivers/usb/usbkbd.c
- * Copyright YAEGASHI Takeshi, 2001
- * Porting to 2.6 Copyright Adrian McMenamin, 2007, 2008
+ * Copyright (c) YAEGASHI Takeshi, 2001
+ * Porting to 2.6 Copyright (c) Adrian McMenamin, 2007 - 2009
*
* 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
@@ -33,7 +33,7 @@ static DEFINE_MUTEX(maple_keyb_mutex);
#define NR_SCANCODES 256
-MODULE_AUTHOR("YAEGASHI Takeshi, Adrian McMenamin");
+MODULE_AUTHOR("Adrian McMenamin <adrian@mcmen.demon.co.uk");
MODULE_DESCRIPTION("SEGA Dreamcast keyboard driver");
MODULE_LICENSE("GPL");
@@ -115,7 +115,7 @@ static void dc_scan_kbd(struct dc_kbd *kbd)
input_event(dev, EV_MSC, MSC_SCAN, code);
input_report_key(dev, keycode, 0);
} else
- printk(KERN_DEBUG "maple_keyb: "
+ dev_dbg(&dev->dev,
"Unknown key (scancode %#x) released.",
code);
}
@@ -127,7 +127,7 @@ static void dc_scan_kbd(struct dc_kbd *kbd)
input_event(dev, EV_MSC, MSC_SCAN, code);
input_report_key(dev, keycode, 1);
} else
- printk(KERN_DEBUG "maple_keyb: "
+ dev_dbg(&dev->dev,
"Unknown key (scancode %#x) pressed.",
code);
}
@@ -140,7 +140,7 @@ static void dc_kbd_callback(struct mapleq *mq)
{
struct maple_device *mapledev = mq->dev;
struct dc_kbd *kbd = maple_get_drvdata(mapledev);
- unsigned long *buf = mq->recvbuf;
+ unsigned long *buf = (unsigned long *)(mq->recvbuf->buf);
/*
* We should always get the lock because the only
@@ -159,22 +159,27 @@ static void dc_kbd_callback(struct mapleq *mq)
static int probe_maple_kbd(struct device *dev)
{
- struct maple_device *mdev = to_maple_dev(dev);
- struct maple_driver *mdrv = to_maple_driver(dev->driver);
+ struct maple_device *mdev;
+ struct maple_driver *mdrv;
int i, error;
struct dc_kbd *kbd;
struct input_dev *idev;
- if (!(mdev->function & MAPLE_FUNC_KEYBOARD))
- return -EINVAL;
+ mdev = to_maple_dev(dev);
+ mdrv = to_maple_driver(dev->driver);
kbd = kzalloc(sizeof(struct dc_kbd), GFP_KERNEL);
- idev = input_allocate_device();
- if (!kbd || !idev) {
+ if (!kbd) {
error = -ENOMEM;
goto fail;
}
+ idev = input_allocate_device();
+ if (!idev) {
+ error = -ENOMEM;
+ goto fail_idev_alloc;
+ }
+
kbd->dev = idev;
memcpy(kbd->keycode, dc_kbd_keycode, sizeof(kbd->keycode));
@@ -195,7 +200,7 @@ static int probe_maple_kbd(struct device *dev)
error = input_register_device(idev);
if (error)
- goto fail;
+ goto fail_register;
/* Maple polling is locked to VBLANK - which may be just 50/s */
maple_getcond_callback(mdev, dc_kbd_callback, HZ/50,
@@ -207,10 +212,12 @@ static int probe_maple_kbd(struct device *dev)
return error;
-fail:
+fail_register:
+ maple_set_drvdata(mdev, NULL);
input_free_device(idev);
+fail_idev_alloc:
kfree(kbd);
- maple_set_drvdata(mdev, NULL);
+fail:
return error;
}
diff --git a/drivers/input/keyboard/sh_keysc.c b/drivers/input/keyboard/sh_keysc.c
index 5c8a1bcf7ca7..e1480fb11de3 100644
--- a/drivers/input/keyboard/sh_keysc.c
+++ b/drivers/input/keyboard/sh_keysc.c
@@ -219,6 +219,8 @@ static int __devinit sh_keysc_probe(struct platform_device *pdev)
pdata->scan_timing, priv->iomem_base + KYCR1_OFFS);
iowrite16(0, priv->iomem_base + KYOUTDR_OFFS);
iowrite16(KYCR2_IRQ_LEVEL, priv->iomem_base + KYCR2_OFFS);
+
+ device_init_wakeup(&pdev->dev, 1);
return 0;
err5:
free_irq(irq, pdev);
@@ -253,17 +255,33 @@ static int __devexit sh_keysc_remove(struct platform_device *pdev)
return 0;
}
+static int sh_keysc_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct sh_keysc_priv *priv = platform_get_drvdata(pdev);
+ unsigned short value;
+
+ value = ioread16(priv->iomem_base + KYCR1_OFFS);
+
+ if (device_may_wakeup(dev))
+ value |= 0x80;
+ else
+ value &= ~0x80;
-#define sh_keysc_suspend NULL
-#define sh_keysc_resume NULL
+ iowrite16(value, priv->iomem_base + KYCR1_OFFS);
+ return 0;
+}
+
+static struct dev_pm_ops sh_keysc_dev_pm_ops = {
+ .suspend = sh_keysc_suspend,
+};
struct platform_driver sh_keysc_device_driver = {
.probe = sh_keysc_probe,
.remove = __devexit_p(sh_keysc_remove),
- .suspend = sh_keysc_suspend,
- .resume = sh_keysc_resume,
.driver = {
.name = "sh_keysc",
+ .pm = &sh_keysc_dev_pm_ops,
}
};
diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig
index 043d50fb6ef6..729f899a5cd5 100644
--- a/drivers/mtd/maps/Kconfig
+++ b/drivers/mtd/maps/Kconfig
@@ -551,5 +551,15 @@ config MTD_PLATRAM
This selection automatically selects the map_ram driver.
-endmenu
+config MTD_VMU
+ tristate "Map driver for Dreamcast VMU"
+ depends on MAPLE
+ help
+ This driver enables access to the Dreamcast Visual Memory Unit (VMU).
+
+ Most Dreamcast users will want to say Y here.
+ To build this as a module select M here, the module will be called
+ vmu-flash.
+
+endmenu
diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile
index 6d9ba35caf11..26b28a7a90b5 100644
--- a/drivers/mtd/maps/Makefile
+++ b/drivers/mtd/maps/Makefile
@@ -61,3 +61,4 @@ obj-$(CONFIG_MTD_PLATRAM) += plat-ram.o
obj-$(CONFIG_MTD_OMAP_NOR) += omap_nor.o
obj-$(CONFIG_MTD_INTEL_VR_NOR) += intel_vr_nor.o
obj-$(CONFIG_MTD_BFIN_ASYNC) += bfin-async-flash.o
+obj-$(CONFIG_MTD_VMU) += vmu-flash.o
diff --git a/drivers/mtd/maps/vmu-flash.c b/drivers/mtd/maps/vmu-flash.c
new file mode 100644
index 000000000000..1f73297e7776
--- /dev/null
+++ b/drivers/mtd/maps/vmu-flash.c
@@ -0,0 +1,832 @@
+/* vmu-flash.c
+ * Driver for SEGA Dreamcast Visual Memory Unit
+ *
+ * Copyright (c) Adrian McMenamin 2002 - 2009
+ * Copyright (c) Paul Mundt 2001
+ *
+ * Licensed under version 2 of the
+ * GNU General Public Licence
+ */
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/delay.h>
+#include <linux/maple.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+
+struct vmu_cache {
+ unsigned char *buffer; /* Cache */
+ unsigned int block; /* Which block was cached */
+ unsigned long jiffies_atc; /* When was it cached? */
+ int valid;
+};
+
+struct mdev_part {
+ struct maple_device *mdev;
+ int partition;
+};
+
+struct vmupart {
+ u16 user_blocks;
+ u16 root_block;
+ u16 numblocks;
+ char *name;
+ struct vmu_cache *pcache;
+};
+
+struct memcard {
+ u16 tempA;
+ u16 tempB;
+ u32 partitions;
+ u32 blocklen;
+ u32 writecnt;
+ u32 readcnt;
+ u32 removeable;
+ int partition;
+ int read;
+ unsigned char *blockread;
+ struct vmupart *parts;
+ struct mtd_info *mtd;
+};
+
+struct vmu_block {
+ unsigned int num; /* block number */
+ unsigned int ofs; /* block offset */
+};
+
+static struct vmu_block *ofs_to_block(unsigned long src_ofs,
+ struct mtd_info *mtd, int partition)
+{
+ struct vmu_block *vblock;
+ struct maple_device *mdev;
+ struct memcard *card;
+ struct mdev_part *mpart;
+ int num;
+
+ mpart = mtd->priv;
+ mdev = mpart->mdev;
+ card = maple_get_drvdata(mdev);
+
+ if (src_ofs >= card->parts[partition].numblocks * card->blocklen)
+ goto failed;
+
+ num = src_ofs / card->blocklen;
+ if (num > card->parts[partition].numblocks)
+ goto failed;
+
+ vblock = kmalloc(sizeof(struct vmu_block), GFP_KERNEL);
+ if (!vblock)
+ goto failed;
+
+ vblock->num = num;
+ vblock->ofs = src_ofs % card->blocklen;
+ return vblock;
+
+failed:
+ return NULL;
+}
+
+/* Maple bus callback function for reads */
+static void vmu_blockread(struct mapleq *mq)
+{
+ struct maple_device *mdev;
+ struct memcard *card;
+
+ mdev = mq->dev;
+ card = maple_get_drvdata(mdev);
+ /* copy the read in data */
+
+ if (unlikely(!card->blockread))
+ return;
+
+ memcpy(card->blockread, mq->recvbuf->buf + 12,
+ card->blocklen/card->readcnt);
+
+}
+
+/* Interface with maple bus to read blocks
+ * caching the results so that other parts
+ * of the driver can access block reads */
+static int maple_vmu_read_block(unsigned int num, unsigned char *buf,
+ struct mtd_info *mtd)
+{
+ struct memcard *card;
+ struct mdev_part *mpart;
+ struct maple_device *mdev;
+ int partition, error = 0, x, wait;
+ unsigned char *blockread = NULL;
+ struct vmu_cache *pcache;
+ __be32 sendbuf;
+
+ mpart = mtd->priv;
+ mdev = mpart->mdev;
+ partition = mpart->partition;
+ card = maple_get_drvdata(mdev);
+ pcache = card->parts[partition].pcache;
+ pcache->valid = 0;
+
+ /* prepare the cache for this block */
+ if (!pcache->buffer) {
+ pcache->buffer = kmalloc(card->blocklen, GFP_KERNEL);
+ if (!pcache->buffer) {
+ dev_err(&mdev->dev, "VMU at (%d, %d) - read fails due"
+ " to lack of memory\n", mdev->port,
+ mdev->unit);
+ error = -ENOMEM;
+ goto outB;
+ }
+ }
+
+ /*
+ * Reads may be phased - again the hardware spec
+ * supports this - though may not be any devices in
+ * the wild that implement it, but we will here
+ */
+ for (x = 0; x < card->readcnt; x++) {
+ sendbuf = cpu_to_be32(partition << 24 | x << 16 | num);
+
+ if (atomic_read(&mdev->busy) == 1) {
+ wait_event_interruptible_timeout(mdev->maple_wait,
+ atomic_read(&mdev->busy) == 0, HZ);
+ if (atomic_read(&mdev->busy) == 1) {
+ dev_notice(&mdev->dev, "VMU at (%d, %d)"
+ " is busy\n", mdev->port, mdev->unit);
+ error = -EAGAIN;
+ goto outB;
+ }
+ }
+
+ atomic_set(&mdev->busy, 1);
+ blockread = kmalloc(card->blocklen/card->readcnt, GFP_KERNEL);
+ if (!blockread) {
+ error = -ENOMEM;
+ atomic_set(&mdev->busy, 0);
+ goto outB;
+ }
+ card->blockread = blockread;
+
+ maple_getcond_callback(mdev, vmu_blockread, 0,
+ MAPLE_FUNC_MEMCARD);
+ error = maple_add_packet(mdev, MAPLE_FUNC_MEMCARD,
+ MAPLE_COMMAND_BREAD, 2, &sendbuf);
+ /* Very long timeouts seem to be needed when box is stressed */
+ wait = wait_event_interruptible_timeout(mdev->maple_wait,
+ (atomic_read(&mdev->busy) == 0 ||
+ atomic_read(&mdev->busy) == 2), HZ * 3);
+ /*
+ * MTD layer does not handle hotplugging well
+ * so have to return errors when VMU is unplugged
+ * in the middle of a read (busy == 2)
+ */
+ if (error || atomic_read(&mdev->busy) == 2) {
+ if (atomic_read(&mdev->busy) == 2)
+ error = -ENXIO;
+ atomic_set(&mdev->busy, 0);
+ card->blockread = NULL;
+ goto outA;
+ }
+ if (wait == 0 || wait == -ERESTARTSYS) {
+ card->blockread = NULL;
+ atomic_set(&mdev->busy, 0);
+ error = -EIO;
+ list_del_init(&(mdev->mq->list));
+ kfree(mdev->mq->sendbuf);
+ mdev->mq->sendbuf = NULL;
+ if (wait == -ERESTARTSYS) {
+ dev_warn(&mdev->dev, "VMU read on (%d, %d)"
+ " interrupted on block 0x%X\n",
+ mdev->port, mdev->unit, num);
+ } else
+ dev_notice(&mdev->dev, "VMU read on (%d, %d)"
+ " timed out on block 0x%X\n",
+ mdev->port, mdev->unit, num);
+ goto outA;
+ }
+
+ memcpy(buf + (card->blocklen/card->readcnt) * x, blockread,
+ card->blocklen/card->readcnt);
+
+ memcpy(pcache->buffer + (card->blocklen/card->readcnt) * x,
+ card->blockread, card->blocklen/card->readcnt);
+ card->blockread = NULL;
+ pcache->block = num;
+ pcache->jiffies_atc = jiffies;
+ pcache->valid = 1;
+ kfree(blockread);
+ }
+
+ return error;
+
+outA:
+ kfree(blockread);
+outB:
+ return error;
+}
+
+/* communicate with maple bus for phased writing */
+static int maple_vmu_write_block(unsigned int num, const unsigned char *buf,
+ struct mtd_info *mtd)
+{
+ struct memcard *card;
+ struct mdev_part *mpart;
+ struct maple_device *mdev;
+ int partition, error, locking, x, phaselen, wait;
+ __be32 *sendbuf;
+
+ mpart = mtd->priv;
+ mdev = mpart->mdev;
+ partition = mpart->partition;
+ card = maple_get_drvdata(mdev);
+
+ phaselen = card->blocklen/card->writecnt;
+
+ sendbuf = kmalloc(phaselen + 4, GFP_KERNEL);
+ if (!sendbuf) {
+ error = -ENOMEM;
+ goto fail_nosendbuf;
+ }
+ for (x = 0; x < card->writecnt; x++) {
+ sendbuf[0] = cpu_to_be32(partition << 24 | x << 16 | num);
+ memcpy(&sendbuf[1], buf + phaselen * x, phaselen);
+ /* wait until the device is not busy doing something else
+ * or 1 second - which ever is longer */
+ if (atomic_read(&mdev->busy) == 1) {
+ wait_event_interruptible_timeout(mdev->maple_wait,
+ atomic_read(&mdev->busy) == 0, HZ);
+ if (atomic_read(&mdev->busy) == 1) {
+ error = -EBUSY;
+ dev_notice(&mdev->dev, "VMU write at (%d, %d)"
+ "failed - device is busy\n",
+ mdev->port, mdev->unit);
+ goto fail_nolock;
+ }
+ }
+ atomic_set(&mdev->busy, 1);
+
+ locking = maple_add_packet(mdev, MAPLE_FUNC_MEMCARD,
+ MAPLE_COMMAND_BWRITE, phaselen / 4 + 2, sendbuf);
+ wait = wait_event_interruptible_timeout(mdev->maple_wait,
+ atomic_read(&mdev->busy) == 0, HZ/10);
+ if (locking) {
+ error = -EIO;
+ atomic_set(&mdev->busy, 0);
+ goto fail_nolock;
+ }
+ if (atomic_read(&mdev->busy) == 2) {
+ atomic_set(&mdev->busy, 0);
+ } else if (wait == 0 || wait == -ERESTARTSYS) {
+ error = -EIO;
+ dev_warn(&mdev->dev, "Write at (%d, %d) of block"
+ " 0x%X at phase %d failed: could not"
+ " communicate with VMU", mdev->port,
+ mdev->unit, num, x);
+ atomic_set(&mdev->busy, 0);
+ kfree(mdev->mq->sendbuf);
+ mdev->mq->sendbuf = NULL;
+ list_del_init(&(mdev->mq->list));
+ goto fail_nolock;
+ }
+ }
+ kfree(sendbuf);
+
+ return card->blocklen;
+
+fail_nolock:
+ kfree(sendbuf);
+fail_nosendbuf:
+ dev_err(&mdev->dev, "VMU (%d, %d): write failed\n", mdev->port,
+ mdev->unit);
+ return error;
+}
+
+/* mtd function to simulate reading byte by byte */
+static unsigned char vmu_flash_read_char(unsigned long ofs, int *retval,
+ struct mtd_info *mtd)
+{
+ struct vmu_block *vblock;
+ struct memcard *card;
+ struct mdev_part *mpart;
+ struct maple_device *mdev;
+ unsigned char *buf, ret;
+ int partition, error;
+
+ mpart = mtd->priv;
+ mdev = mpart->mdev;
+ partition = mpart->partition;
+ card = maple_get_drvdata(mdev);
+ *retval = 0;
+
+ buf = kmalloc(card->blocklen, GFP_KERNEL);
+ if (!buf) {
+ *retval = 1;
+ ret = -ENOMEM;
+ goto finish;
+ }
+
+ vblock = ofs_to_block(ofs, mtd, partition);
+ if (!vblock) {
+ *retval = 3;
+ ret = -ENOMEM;
+ goto out_buf;
+ }
+
+ error = maple_vmu_read_block(vblock->num, buf, mtd);
+ if (error) {
+ ret = error;
+ *retval = 2;
+ goto out_vblock;
+ }
+
+ ret = buf[vblock->ofs];
+
+out_vblock:
+ kfree(vblock);
+out_buf:
+ kfree(buf);
+finish:
+ return ret;
+}
+
+/* mtd higher order function to read flash */
+static int vmu_flash_read(struct mtd_info *mtd, loff_t from, size_t len,
+ size_t *retlen, u_char *buf)
+{
+ struct maple_device *mdev;
+ struct memcard *card;
+ struct mdev_part *mpart;
+ struct vmu_cache *pcache;
+ struct vmu_block *vblock;
+ int index = 0, retval, partition, leftover, numblocks;
+ unsigned char cx;
+
+ if (len < 1)
+ return -EIO;
+
+ mpart = mtd->priv;
+ mdev = mpart->mdev;
+ partition = mpart->partition;
+ card = maple_get_drvdata(mdev);
+
+ numblocks = card->parts[partition].numblocks;
+ if (from + len > numblocks * card->blocklen)
+ len = numblocks * card->blocklen - from;
+ if (len == 0)
+ return -EIO;
+ /* Have we cached this bit already? */
+ pcache = card->parts[partition].pcache;
+ do {
+ vblock = ofs_to_block(from + index, mtd, partition);
+ if (!vblock)
+ return -ENOMEM;
+ /* Have we cached this and is the cache valid and timely? */
+ if (pcache->valid &&
+ time_before(jiffies, pcache->jiffies_atc + HZ) &&
+ (pcache->block == vblock->num)) {
+ /* we have cached it, so do necessary copying */
+ leftover = card->blocklen - vblock->ofs;
+ if (vblock->ofs + len - index < card->blocklen) {
+ /* only a bit of this block to copy */
+ memcpy(buf + index,
+ pcache->buffer + vblock->ofs,
+ len - index);
+ index = len;
+ } else {
+ /* otherwise copy remainder of whole block */
+ memcpy(buf + index, pcache->buffer +
+ vblock->ofs, leftover);
+ index += leftover;
+ }
+ } else {
+ /*
+ * Not cached so read one byte -
+ * but cache the rest of the block
+ */
+ cx = vmu_flash_read_char(from + index, &retval, mtd);
+ if (retval) {
+ *retlen = index;
+ kfree(vblock);
+ return cx;
+ }
+ memset(buf + index, cx, 1);
+ index++;
+ }
+ kfree(vblock);
+ } while (len > index);
+ *retlen = index;
+
+ return 0;
+}
+
+static int vmu_flash_write(struct mtd_info *mtd, loff_t to, size_t len,
+ size_t *retlen, const u_char *buf)
+{
+ struct maple_device *mdev;
+ struct memcard *card;
+ struct mdev_part *mpart;
+ int index = 0, partition, error = 0, numblocks;
+ struct vmu_cache *pcache;
+ struct vmu_block *vblock;
+ unsigned char *buffer;
+
+ mpart = mtd->priv;
+ mdev = mpart->mdev;
+ partition = mpart->partition;
+ card = maple_get_drvdata(mdev);
+
+ /* simple sanity checks */
+ if (len < 1) {
+ error = -EIO;
+ goto failed;
+ }
+ numblocks = card->parts[partition].numblocks;
+ if (to + len > numblocks * card->blocklen)
+ len = numblocks * card->blocklen - to;
+ if (len == 0) {
+ error = -EIO;
+ goto failed;
+ }
+
+ vblock = ofs_to_block(to, mtd, partition);
+ if (!vblock) {
+ error = -ENOMEM;
+ goto failed;
+ }
+
+ buffer = kmalloc(card->blocklen, GFP_KERNEL);
+ if (!buffer) {
+ error = -ENOMEM;
+ goto fail_buffer;
+ }
+
+ do {
+ /* Read in the block we are to write to */
+ error = maple_vmu_read_block(vblock->num, buffer, mtd);
+ if (error)
+ goto fail_io;
+
+ do {
+ buffer[vblock->ofs] = buf[index];
+ vblock->ofs++;
+ index++;
+ if (index >= len)
+ break;
+ } while (vblock->ofs < card->blocklen);
+
+ /* write out new buffer */
+ error = maple_vmu_write_block(vblock->num, buffer, mtd);
+ /* invalidate the cache */
+ pcache = card->parts[partition].pcache;
+ pcache->valid = 0;
+
+ if (error != card->blocklen)
+ goto fail_io;
+
+ vblock->num++;
+ vblock->ofs = 0;
+ } while (len > index);
+
+ kfree(buffer);
+ *retlen = index;
+ kfree(vblock);
+ return 0;
+
+fail_io:
+ kfree(buffer);
+fail_buffer:
+ kfree(vblock);
+failed:
+ dev_err(&mdev->dev, "VMU write failing with error %d\n", error);
+ return error;
+}
+
+static void vmu_flash_sync(struct mtd_info *mtd)
+{
+ /* Do nothing here */
+}
+
+/* Maple bus callback function to recursively query hardware details */
+static void vmu_queryblocks(struct mapleq *mq)
+{
+ struct maple_device *mdev;
+ unsigned short *res;
+ struct memcard *card;
+ __be32 partnum;
+ struct vmu_cache *pcache;
+ struct mdev_part *mpart;
+ struct mtd_info *mtd_cur;
+ struct vmupart *part_cur;
+ int error;
+
+ mdev = mq->dev;
+ card = maple_get_drvdata(mdev);
+ res = (unsigned short *) (mq->recvbuf->buf);
+ card->tempA = res[12];
+ card->tempB = res[6];
+
+ dev_info(&mdev->dev, "VMU device at partition %d has %d user "
+ "blocks with a root block at %d\n", card->partition,
+ card->tempA, card->tempB);
+
+ part_cur = &card->parts[card->partition];
+ part_cur->user_blocks = card->tempA;
+ part_cur->root_block = card->tempB;
+ part_cur->numblocks = card->tempB + 1;
+ part_cur->name = kmalloc(12, GFP_KERNEL);
+ if (!part_cur->name)
+ goto fail_name;
+
+ sprintf(part_cur->name, "vmu%d.%d.%d",
+ mdev->port, mdev->unit, card->partition);
+ mtd_cur = &card->mtd[card->partition];
+ mtd_cur->name = part_cur->name;
+ mtd_cur->type = 8;
+ mtd_cur->flags = MTD_WRITEABLE|MTD_NO_ERASE;
+ mtd_cur->size = part_cur->numblocks * card->blocklen;
+ mtd_cur->erasesize = card->blocklen;
+ mtd_cur->write = vmu_flash_write;
+ mtd_cur->read = vmu_flash_read;
+ mtd_cur->sync = vmu_flash_sync;
+ mtd_cur->writesize = card->blocklen;
+
+ mpart = kmalloc(sizeof(struct mdev_part), GFP_KERNEL);
+ if (!mpart)
+ goto fail_mpart;
+
+ mpart->mdev = mdev;
+ mpart->partition = card->partition;
+ mtd_cur->priv = mpart;
+ mtd_cur->owner = THIS_MODULE;
+
+ pcache = kzalloc(sizeof(struct vmu_cache), GFP_KERNEL);
+ if (!pcache)
+ goto fail_cache_create;
+ part_cur->pcache = pcache;
+
+ error = add_mtd_device(mtd_cur);
+ if (error)
+ goto fail_mtd_register;
+
+ maple_getcond_callback(mdev, NULL, 0,
+ MAPLE_FUNC_MEMCARD);
+
+ /*
+ * Set up a recursive call to the (probably theoretical)
+ * second or more partition
+ */
+ if (++card->partition < card->partitions) {
+ partnum = cpu_to_be32(card->partition << 24);
+ maple_getcond_callback(mdev, vmu_queryblocks, 0,
+ MAPLE_FUNC_MEMCARD);
+ maple_add_packet(mdev, MAPLE_FUNC_MEMCARD,
+ MAPLE_COMMAND_GETMINFO, 2, &partnum);
+ }
+ return;
+
+fail_mtd_register:
+ dev_err(&mdev->dev, "Could not register maple device at (%d, %d)"
+ "error is 0x%X\n", mdev->port, mdev->unit, error);
+ for (error = 0; error <= card->partition; error++) {
+ kfree(((card->parts)[error]).pcache);
+ ((card->parts)[error]).pcache = NULL;
+ }
+fail_cache_create:
+fail_mpart:
+ for (error = 0; error <= card->partition; error++) {
+ kfree(((card->mtd)[error]).priv);
+ ((card->mtd)[error]).priv = NULL;
+ }
+ maple_getcond_callback(mdev, NULL, 0,
+ MAPLE_FUNC_MEMCARD);
+ kfree(part_cur->name);
+fail_name:
+ return;
+}
+
+/* Handles very basic info about the flash, queries for details */
+static int __devinit vmu_connect(struct maple_device *mdev)
+{
+ unsigned long test_flash_data, basic_flash_data;
+ int c, error;
+ struct memcard *card;
+ u32 partnum = 0;
+
+ test_flash_data = be32_to_cpu(mdev->devinfo.function);
+ /* Need to count how many bits are set - to find out which
+ * function_data element has details of the memory card:
+ * using Brian Kernighan's/Peter Wegner's method */
+ for (c = 0; test_flash_data; c++)
+ test_flash_data &= test_flash_data - 1;
+
+ basic_flash_data = be32_to_cpu(mdev->devinfo.function_data[c - 1]);
+
+ card = kmalloc(sizeof(struct memcard), GFP_KERNEL);
+ if (!card) {
+ error = ENOMEM;
+ goto fail_nomem;
+ }
+
+ card->partitions = (basic_flash_data >> 24 & 0xFF) + 1;
+ card->blocklen = ((basic_flash_data >> 16 & 0xFF) + 1) << 5;
+ card->writecnt = basic_flash_data >> 12 & 0xF;
+ card->readcnt = basic_flash_data >> 8 & 0xF;
+ card->removeable = basic_flash_data >> 7 & 1;
+
+ card->partition = 0;
+
+ /*
+ * Not sure there are actually any multi-partition devices in the
+ * real world, but the hardware supports them, so, so will we
+ */
+ card->parts = kmalloc(sizeof(struct vmupart) * card->partitions,
+ GFP_KERNEL);
+ if (!card->parts) {
+ error = -ENOMEM;
+ goto fail_partitions;
+ }
+
+ card->mtd = kmalloc(sizeof(struct mtd_info) * card->partitions,
+ GFP_KERNEL);
+ if (!card->mtd) {
+ error = -ENOMEM;
+ goto fail_mtd_info;
+ }
+
+ maple_set_drvdata(mdev, card);
+
+ /*
+ * We want to trap meminfo not get cond
+ * so set interval to zero, but rely on maple bus
+ * driver to pass back the results of the meminfo
+ */
+ maple_getcond_callback(mdev, vmu_queryblocks, 0,
+ MAPLE_FUNC_MEMCARD);
+
+ /* Make sure we are clear to go */
+ if (atomic_read(&mdev->busy) == 1) {
+ wait_event_interruptible_timeout(mdev->maple_wait,
+ atomic_read(&mdev->busy) == 0, HZ);
+ if (atomic_read(&mdev->busy) == 1) {
+ dev_notice(&mdev->dev, "VMU at (%d, %d) is busy\n",
+ mdev->port, mdev->unit);
+ error = -EAGAIN;
+ goto fail_device_busy;
+ }
+ }
+
+ atomic_set(&mdev->busy, 1);
+
+ /*
+ * Set up the minfo call: vmu_queryblocks will handle
+ * the information passed back
+ */
+ error = maple_add_packet(mdev, MAPLE_FUNC_MEMCARD,
+ MAPLE_COMMAND_GETMINFO, 2, &partnum);
+ if (error) {
+ dev_err(&mdev->dev, "Could not lock VMU at (%d, %d)"
+ " error is 0x%X\n", mdev->port, mdev->unit, error);
+ goto fail_mtd_info;
+ }
+ return 0;
+
+fail_device_busy:
+ kfree(card->mtd);
+fail_mtd_info:
+ kfree(card->parts);
+fail_partitions:
+ kfree(card);
+fail_nomem:
+ return error;
+}
+
+static void __devexit vmu_disconnect(struct maple_device *mdev)
+{
+ struct memcard *card;
+ struct mdev_part *mpart;
+ int x;
+
+ mdev->callback = NULL;
+ card = maple_get_drvdata(mdev);
+ for (x = 0; x < card->partitions; x++) {
+ mpart = ((card->mtd)[x]).priv;
+ mpart->mdev = NULL;
+ del_mtd_device(&((card->mtd)[x]));
+ kfree(((card->parts)[x]).name);
+ }
+ kfree(card->parts);
+ kfree(card->mtd);
+ kfree(card);
+}
+
+/* Callback to handle eccentricities of both mtd subsystem
+ * and general flakyness of Dreamcast VMUs
+ */
+static int vmu_can_unload(struct maple_device *mdev)
+{
+ struct memcard *card;
+ int x;
+ struct mtd_info *mtd;
+
+ card = maple_get_drvdata(mdev);
+ for (x = 0; x < card->partitions; x++) {
+ mtd = &((card->mtd)[x]);
+ if (mtd->usecount > 0)
+ return 0;
+ }
+ return 1;
+}
+
+#define ERRSTR "VMU at (%d, %d) file error -"
+
+static void vmu_file_error(struct maple_device *mdev, void *recvbuf)
+{
+ enum maple_file_errors error = ((int *)recvbuf)[1];
+
+ switch (error) {
+
+ case MAPLE_FILEERR_INVALID_PARTITION:
+ dev_notice(&mdev->dev, ERRSTR " invalid partition number\n",
+ mdev->port, mdev->unit);
+ break;
+
+ case MAPLE_FILEERR_PHASE_ERROR:
+ dev_notice(&mdev->dev, ERRSTR " phase error\n",
+ mdev->port, mdev->unit);
+ break;
+
+ case MAPLE_FILEERR_INVALID_BLOCK:
+ dev_notice(&mdev->dev, ERRSTR " invalid block number\n",
+ mdev->port, mdev->unit);
+ break;
+
+ case MAPLE_FILEERR_WRITE_ERROR:
+ dev_notice(&mdev->dev, ERRSTR " write error\n",
+ mdev->port, mdev->unit);
+ break;
+
+ case MAPLE_FILEERR_INVALID_WRITE_LENGTH:
+ dev_notice(&mdev->dev, ERRSTR " invalid write length\n",
+ mdev->port, mdev->unit);
+ break;
+
+ case MAPLE_FILEERR_BAD_CRC:
+ dev_notice(&mdev->dev, ERRSTR " bad CRC\n",
+ mdev->port, mdev->unit);
+ break;
+
+ default:
+ dev_notice(&mdev->dev, ERRSTR " 0x%X\n",
+ mdev->port, mdev->unit, error);
+ }
+}
+
+
+static int __devinit probe_maple_vmu(struct device *dev)
+{
+ int error;
+ struct maple_device *mdev = to_maple_dev(dev);
+ struct maple_driver *mdrv = to_maple_driver(dev->driver);
+
+ mdev->can_unload = vmu_can_unload;
+ mdev->fileerr_handler = vmu_file_error;
+ mdev->driver = mdrv;
+
+ error = vmu_connect(mdev);
+ if (error)
+ return error;
+
+ return 0;
+}
+
+static int __devexit remove_maple_vmu(struct device *dev)
+{
+ struct maple_device *mdev = to_maple_dev(dev);
+
+ vmu_disconnect(mdev);
+ return 0;
+}
+
+static struct maple_driver vmu_flash_driver = {
+ .function = MAPLE_FUNC_MEMCARD,
+ .drv = {
+ .name = "Dreamcast_visual_memory",
+ .probe = probe_maple_vmu,
+ .remove = __devexit_p(remove_maple_vmu),
+ },
+};
+
+static int __init vmu_flash_map_init(void)
+{
+ return maple_driver_register(&vmu_flash_driver);
+}
+
+static void __exit vmu_flash_map_exit(void)
+{
+ maple_driver_unregister(&vmu_flash_driver);
+}
+
+module_init(vmu_flash_map_init);
+module_exit(vmu_flash_map_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Adrian McMenamin");
+MODULE_DESCRIPTION("Flash mapping for Sega Dreamcast visual memory");
diff --git a/drivers/rtc/rtc-sh.c b/drivers/rtc/rtc-sh.c
index 1c3fc6b428e9..4898f7fe8518 100644
--- a/drivers/rtc/rtc-sh.c
+++ b/drivers/rtc/rtc-sh.c
@@ -28,7 +28,7 @@
#include <asm/rtc.h>
#define DRV_NAME "sh-rtc"
-#define DRV_VERSION "0.2.0"
+#define DRV_VERSION "0.2.1"
#define RTC_REG(r) ((r) * rtc_reg_size)
@@ -99,56 +99,51 @@ struct sh_rtc {
unsigned short periodic_freq;
};
-static irqreturn_t sh_rtc_interrupt(int irq, void *dev_id)
+static int __sh_rtc_interrupt(struct sh_rtc *rtc)
{
- struct sh_rtc *rtc = dev_id;
- unsigned int tmp;
-
- spin_lock(&rtc->lock);
+ unsigned int tmp, pending;
tmp = readb(rtc->regbase + RCR1);
+ pending = tmp & RCR1_CF;
tmp &= ~RCR1_CF;
writeb(tmp, rtc->regbase + RCR1);
/* Users have requested One x Second IRQ */
- if (rtc->periodic_freq & PF_OXS)
+ if (pending && rtc->periodic_freq & PF_OXS)
rtc_update_irq(rtc->rtc_dev, 1, RTC_UF | RTC_IRQF);
- spin_unlock(&rtc->lock);
-
- return IRQ_HANDLED;
+ return pending;
}
-static irqreturn_t sh_rtc_alarm(int irq, void *dev_id)
+static int __sh_rtc_alarm(struct sh_rtc *rtc)
{
- struct sh_rtc *rtc = dev_id;
- unsigned int tmp;
-
- spin_lock(&rtc->lock);
+ unsigned int tmp, pending;
tmp = readb(rtc->regbase + RCR1);
+ pending = tmp & RCR1_AF;
tmp &= ~(RCR1_AF | RCR1_AIE);
- writeb(tmp, rtc->regbase + RCR1);
-
- rtc_update_irq(rtc->rtc_dev, 1, RTC_AF | RTC_IRQF);
+ writeb(tmp, rtc->regbase + RCR1);
- spin_unlock(&rtc->lock);
+ if (pending)
+ rtc_update_irq(rtc->rtc_dev, 1, RTC_AF | RTC_IRQF);
- return IRQ_HANDLED;
+ return pending;
}
-static irqreturn_t sh_rtc_periodic(int irq, void *dev_id)
+static int __sh_rtc_periodic(struct sh_rtc *rtc)
{
- struct sh_rtc *rtc = dev_id;
struct rtc_device *rtc_dev = rtc->rtc_dev;
- unsigned int tmp;
-
- spin_lock(&rtc->lock);
+ struct rtc_task *irq_task;
+ unsigned int tmp, pending;
tmp = readb(rtc->regbase + RCR2);
+ pending = tmp & RCR2_PEF;
tmp &= ~RCR2_PEF;
writeb(tmp, rtc->regbase + RCR2);
+ if (!pending)
+ return 0;
+
/* Half period enabled than one skipped and the next notified */
if ((rtc->periodic_freq & PF_HP) && (rtc->periodic_freq & PF_COUNT))
rtc->periodic_freq &= ~PF_COUNT;
@@ -157,16 +152,65 @@ static irqreturn_t sh_rtc_periodic(int irq, void *dev_id)
rtc->periodic_freq |= PF_COUNT;
if (rtc->periodic_freq & PF_KOU) {
spin_lock(&rtc_dev->irq_task_lock);
- if (rtc_dev->irq_task)
- rtc_dev->irq_task->func(rtc_dev->irq_task->private_data);
+ irq_task = rtc_dev->irq_task;
+ if (irq_task)
+ irq_task->func(irq_task->private_data);
spin_unlock(&rtc_dev->irq_task_lock);
} else
rtc_update_irq(rtc->rtc_dev, 1, RTC_PF | RTC_IRQF);
}
+ return pending;
+}
+
+static irqreturn_t sh_rtc_interrupt(int irq, void *dev_id)
+{
+ struct sh_rtc *rtc = dev_id;
+ int ret;
+
+ spin_lock(&rtc->lock);
+ ret = __sh_rtc_interrupt(rtc);
+ spin_unlock(&rtc->lock);
+
+ return IRQ_RETVAL(ret);
+}
+
+static irqreturn_t sh_rtc_alarm(int irq, void *dev_id)
+{
+ struct sh_rtc *rtc = dev_id;
+ int ret;
+
+ spin_lock(&rtc->lock);
+ ret = __sh_rtc_alarm(rtc);
+ spin_unlock(&rtc->lock);
+
+ return IRQ_RETVAL(ret);
+}
+
+static irqreturn_t sh_rtc_periodic(int irq, void *dev_id)
+{
+ struct sh_rtc *rtc = dev_id;
+ int ret;
+
+ spin_lock(&rtc->lock);
+ ret = __sh_rtc_periodic(rtc);
spin_unlock(&rtc->lock);
- return IRQ_HANDLED;
+ return IRQ_RETVAL(ret);
+}
+
+static irqreturn_t sh_rtc_shared(int irq, void *dev_id)
+{
+ struct sh_rtc *rtc = dev_id;
+ int ret;
+
+ spin_lock(&rtc->lock);
+ ret = __sh_rtc_interrupt(rtc);
+ ret |= __sh_rtc_alarm(rtc);
+ ret |= __sh_rtc_periodic(rtc);
+ spin_unlock(&rtc->lock);
+
+ return IRQ_RETVAL(ret);
}
static inline void sh_rtc_setpie(struct device *dev, unsigned int enable)
@@ -275,6 +319,25 @@ static int sh_rtc_proc(struct device *dev, struct seq_file *seq)
return 0;
}
+static inline void sh_rtc_setcie(struct device *dev, unsigned int enable)
+{
+ struct sh_rtc *rtc = dev_get_drvdata(dev);
+ unsigned int tmp;
+
+ spin_lock_irq(&rtc->lock);
+
+ tmp = readb(rtc->regbase + RCR1);
+
+ if (!enable)
+ tmp &= ~RCR1_CIE;
+ else
+ tmp |= RCR1_CIE;
+
+ writeb(tmp, rtc->regbase + RCR1);
+
+ spin_unlock_irq(&rtc->lock);
+}
+
static int sh_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg)
{
struct sh_rtc *rtc = dev_get_drvdata(dev);
@@ -291,9 +354,11 @@ static int sh_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg)
break;
case RTC_UIE_OFF:
rtc->periodic_freq &= ~PF_OXS;
+ sh_rtc_setcie(dev, 0);
break;
case RTC_UIE_ON:
rtc->periodic_freq |= PF_OXS;
+ sh_rtc_setcie(dev, 1);
break;
case RTC_IRQP_READ:
ret = put_user(rtc->rtc_dev->irq_freq,
@@ -356,18 +421,17 @@ static int sh_rtc_read_time(struct device *dev, struct rtc_time *tm)
tm->tm_sec--;
#endif
+ /* only keep the carry interrupt enabled if UIE is on */
+ if (!(rtc->periodic_freq & PF_OXS))
+ sh_rtc_setcie(dev, 0);
+
dev_dbg(dev, "%s: tm is secs=%d, mins=%d, hours=%d, "
"mday=%d, mon=%d, year=%d, wday=%d\n",
__func__,
tm->tm_sec, tm->tm_min, tm->tm_hour,
tm->tm_mday, tm->tm_mon + 1, tm->tm_year, tm->tm_wday);
- if (rtc_valid_tm(tm) < 0) {
- dev_err(dev, "invalid date\n");
- rtc_time_to_tm(0, tm);
- }
-
- return 0;
+ return rtc_valid_tm(tm);
}
static int sh_rtc_set_time(struct device *dev, struct rtc_time *tm)
@@ -572,7 +636,7 @@ static int __devinit sh_rtc_probe(struct platform_device *pdev)
{
struct sh_rtc *rtc;
struct resource *res;
- unsigned int tmp;
+ struct rtc_time r;
int ret;
rtc = kzalloc(sizeof(struct sh_rtc), GFP_KERNEL);
@@ -585,26 +649,12 @@ static int __devinit sh_rtc_probe(struct platform_device *pdev)
ret = platform_get_irq(pdev, 0);
if (unlikely(ret <= 0)) {
ret = -ENOENT;
- dev_err(&pdev->dev, "No IRQ for period\n");
+ dev_err(&pdev->dev, "No IRQ resource\n");
goto err_badres;
}
rtc->periodic_irq = ret;
-
- ret = platform_get_irq(pdev, 1);
- if (unlikely(ret <= 0)) {
- ret = -ENOENT;
- dev_err(&pdev->dev, "No IRQ for carry\n");
- goto err_badres;
- }
- rtc->carry_irq = ret;
-
- ret = platform_get_irq(pdev, 2);
- if (unlikely(ret <= 0)) {
- ret = -ENOENT;
- dev_err(&pdev->dev, "No IRQ for alarm\n");
- goto err_badres;
- }
- rtc->alarm_irq = ret;
+ rtc->carry_irq = platform_get_irq(pdev, 1);
+ rtc->alarm_irq = platform_get_irq(pdev, 2);
res = platform_get_resource(pdev, IORESOURCE_IO, 0);
if (unlikely(res == NULL)) {
@@ -646,47 +696,66 @@ static int __devinit sh_rtc_probe(struct platform_device *pdev)
}
rtc->rtc_dev->max_user_freq = 256;
- rtc->rtc_dev->irq_freq = 1;
- rtc->periodic_freq = 0x60;
platform_set_drvdata(pdev, rtc);
- /* register periodic/carry/alarm irqs */
- ret = request_irq(rtc->periodic_irq, sh_rtc_periodic, IRQF_DISABLED,
- "sh-rtc period", rtc);
- if (unlikely(ret)) {
- dev_err(&pdev->dev,
- "request period IRQ failed with %d, IRQ %d\n", ret,
- rtc->periodic_irq);
- goto err_unmap;
- }
+ if (rtc->carry_irq <= 0) {
+ /* register shared periodic/carry/alarm irq */
+ ret = request_irq(rtc->periodic_irq, sh_rtc_shared,
+ IRQF_DISABLED, "sh-rtc", rtc);
+ if (unlikely(ret)) {
+ dev_err(&pdev->dev,
+ "request IRQ failed with %d, IRQ %d\n", ret,
+ rtc->periodic_irq);
+ goto err_unmap;
+ }
+ } else {
+ /* register periodic/carry/alarm irqs */
+ ret = request_irq(rtc->periodic_irq, sh_rtc_periodic,
+ IRQF_DISABLED, "sh-rtc period", rtc);
+ if (unlikely(ret)) {
+ dev_err(&pdev->dev,
+ "request period IRQ failed with %d, IRQ %d\n",
+ ret, rtc->periodic_irq);
+ goto err_unmap;
+ }
- ret = request_irq(rtc->carry_irq, sh_rtc_interrupt, IRQF_DISABLED,
- "sh-rtc carry", rtc);
- if (unlikely(ret)) {
- dev_err(&pdev->dev,
- "request carry IRQ failed with %d, IRQ %d\n", ret,
- rtc->carry_irq);
- free_irq(rtc->periodic_irq, rtc);
- goto err_unmap;
- }
+ ret = request_irq(rtc->carry_irq, sh_rtc_interrupt,
+ IRQF_DISABLED, "sh-rtc carry", rtc);
+ if (unlikely(ret)) {
+ dev_err(&pdev->dev,
+ "request carry IRQ failed with %d, IRQ %d\n",
+ ret, rtc->carry_irq);
+ free_irq(rtc->periodic_irq, rtc);
+ goto err_unmap;
+ }
- ret = request_irq(rtc->alarm_irq, sh_rtc_alarm, IRQF_DISABLED,
- "sh-rtc alarm", rtc);
- if (unlikely(ret)) {
- dev_err(&pdev->dev,
- "request alarm IRQ failed with %d, IRQ %d\n", ret,
- rtc->alarm_irq);
- free_irq(rtc->carry_irq, rtc);
- free_irq(rtc->periodic_irq, rtc);
- goto err_unmap;
+ ret = request_irq(rtc->alarm_irq, sh_rtc_alarm,
+ IRQF_DISABLED, "sh-rtc alarm", rtc);
+ if (unlikely(ret)) {
+ dev_err(&pdev->dev,
+ "request alarm IRQ failed with %d, IRQ %d\n",
+ ret, rtc->alarm_irq);
+ free_irq(rtc->carry_irq, rtc);
+ free_irq(rtc->periodic_irq, rtc);
+ goto err_unmap;
+ }
}
- tmp = readb(rtc->regbase + RCR1);
- tmp &= ~RCR1_CF;
- tmp |= RCR1_CIE;
- writeb(tmp, rtc->regbase + RCR1);
+ /* everything disabled by default */
+ rtc->periodic_freq = 0;
+ rtc->rtc_dev->irq_freq = 0;
+ sh_rtc_setpie(&pdev->dev, 0);
+ sh_rtc_setaie(&pdev->dev, 0);
+ sh_rtc_setcie(&pdev->dev, 0);
+
+ /* reset rtc to epoch 0 if time is invalid */
+ if (rtc_read_time(rtc->rtc_dev, &r) < 0) {
+ rtc_time_to_tm(0, &r);
+ rtc_set_time(rtc->rtc_dev, &r);
+ }
+ device_init_wakeup(&pdev->dev, 1);
return 0;
err_unmap:
@@ -708,10 +777,13 @@ static int __devexit sh_rtc_remove(struct platform_device *pdev)
sh_rtc_setpie(&pdev->dev, 0);
sh_rtc_setaie(&pdev->dev, 0);
+ sh_rtc_setcie(&pdev->dev, 0);
- free_irq(rtc->carry_irq, rtc);
free_irq(rtc->periodic_irq, rtc);
- free_irq(rtc->alarm_irq, rtc);
+ if (rtc->carry_irq > 0) {
+ free_irq(rtc->carry_irq, rtc);
+ free_irq(rtc->alarm_irq, rtc);
+ }
release_resource(rtc->res);
diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index 557b54ab2f25..dbf5357a77b3 100644
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -139,7 +139,7 @@ static void sci_poll_put_char(struct uart_port *port, unsigned char c)
} while (!(status & SCxSR_TDxE(port)));
sci_in(port, SCxSR); /* Dummy read */
- sci_out(port, SCxSR, SCxSR_TDxE_CLEAR(port));
+ sci_out(port, SCxSR, SCxSR_TDxE_CLEAR(port) & ~SCxSR_TEND(port));
sci_out(port, SCxTDR, c);
}
#endif /* CONFIG_CONSOLE_POLL || CONFIG_SERIAL_SH_SCI_CONSOLE */
@@ -263,6 +263,7 @@ static inline void sci_init_pins(struct uart_port *port, unsigned int cflag)
#elif defined(CONFIG_CPU_SUBTYPE_SH7763) || \
defined(CONFIG_CPU_SUBTYPE_SH7780) || \
defined(CONFIG_CPU_SUBTYPE_SH7785) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7786) || \
defined(CONFIG_CPU_SUBTYPE_SHX3)
static inline void sci_init_pins(struct uart_port *port, unsigned int cflag)
{
@@ -284,7 +285,8 @@ static inline void sci_init_pins(struct uart_port *port, unsigned int cflag)
#if defined(CONFIG_CPU_SUBTYPE_SH7760) || \
defined(CONFIG_CPU_SUBTYPE_SH7780) || \
- defined(CONFIG_CPU_SUBTYPE_SH7785)
+ defined(CONFIG_CPU_SUBTYPE_SH7785) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7786)
static inline int scif_txroom(struct uart_port *port)
{
return SCIF_TXROOM_MAX - (sci_in(port, SCTFDR) & 0xff);
@@ -1095,6 +1097,7 @@ static void serial_console_write(struct console *co, const char *s,
unsigned count)
{
struct uart_port *port = &serial_console_port->port;
+ unsigned short bits;
int i;
for (i = 0; i < count; i++) {
@@ -1103,6 +1106,11 @@ static void serial_console_write(struct console *co, const char *s,
sci_poll_put_char(port, *s++);
}
+
+ /* wait until fifo is empty and last bit has been transmitted */
+ bits = SCxSR_TDxE(port) | SCxSR_TEND(port);
+ while ((sci_in(port, SCxSR) & bits) != bits)
+ cpu_relax();
}
static int __init serial_console_setup(struct console *co, char *options)
diff --git a/drivers/serial/sh-sci.h b/drivers/serial/sh-sci.h
index 022e89ffec1d..d0aa82d7fce0 100644
--- a/drivers/serial/sh-sci.h
+++ b/drivers/serial/sh-sci.h
@@ -1,6 +1,6 @@
#include <linux/serial_core.h>
#include <asm/io.h>
-#include <asm/gpio.h>
+#include <linux/gpio.h>
#if defined(CONFIG_H83007) || defined(CONFIG_H83068)
#include <asm/regs306x.h>
@@ -126,7 +126,8 @@
# define SCSPTR1 0xffe10024 /* 16 bit SCIF */
# define SCIF_ORER 0x0001 /* Overrun error bit */
# define SCSCR_INIT(port) 0x3a /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
-#elif defined(CONFIG_CPU_SUBTYPE_SH7785)
+#elif defined(CONFIG_CPU_SUBTYPE_SH7785) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7786)
# define SCSPTR0 0xffea0024 /* 16 bit SCIF */
# define SCSPTR1 0xffeb0024 /* 16 bit SCIF */
# define SCSPTR2 0xffec0024 /* 16 bit SCIF */
@@ -182,6 +183,7 @@
defined(CONFIG_CPU_SUBTYPE_SH7763) || \
defined(CONFIG_CPU_SUBTYPE_SH7780) || \
defined(CONFIG_CPU_SUBTYPE_SH7785) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7786) || \
defined(CONFIG_CPU_SUBTYPE_SHX3)
#define SCI_CTRL_FLAGS_REIE 0x08 /* 7750 SCIF */
#else
@@ -413,7 +415,8 @@ SCIx_FNS(SCxRDR, 0x0a, 8, 0x14, 8, 0x0A, 8, 0x14, 8, 0x05, 8)
SCIF_FNS(SCFCR, 0x0c, 8, 0x18, 16)
#if defined(CONFIG_CPU_SUBTYPE_SH7760) || \
defined(CONFIG_CPU_SUBTYPE_SH7780) || \
- defined(CONFIG_CPU_SUBTYPE_SH7785)
+ defined(CONFIG_CPU_SUBTYPE_SH7785) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7786)
SCIF_FNS(SCFDR, 0x0e, 16, 0x1C, 16)
SCIF_FNS(SCTFDR, 0x0e, 16, 0x1C, 16)
SCIF_FNS(SCRFDR, 0x0e, 16, 0x20, 16)
@@ -644,7 +647,8 @@ static inline int sci_rxd_in(struct uart_port *port)
return ctrl_inw(SCSPTR1) & 0x0001 ? 1 : 0; /* SCIF */
return 1;
}
-#elif defined(CONFIG_CPU_SUBTYPE_SH7785)
+#elif defined(CONFIG_CPU_SUBTYPE_SH7785) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7786)
static inline int sci_rxd_in(struct uart_port *port)
{
if (port->mapbase == 0xffea0000)
@@ -746,7 +750,8 @@ static inline int sci_rxd_in(struct uart_port *port)
*/
#if defined(CONFIG_CPU_SUBTYPE_SH7780) || \
- defined(CONFIG_CPU_SUBTYPE_SH7785)
+ defined(CONFIG_CPU_SUBTYPE_SH7785) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7786)
#define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(16*bps)-1)
#elif defined(CONFIG_CPU_SUBTYPE_SH7705) || \
defined(CONFIG_CPU_SUBTYPE_SH7720) || \
diff --git a/drivers/sh/intc.c b/drivers/sh/intc.c
index 58d24c5a76ce..2269fbcaa182 100644
--- a/drivers/sh/intc.c
+++ b/drivers/sh/intc.c
@@ -568,6 +568,10 @@ static void __init intc_register_irq(struct intc_desc *desc,
if (!data[0] && data[1])
primary = 1;
+ if (!data[0] && !data[1])
+ pr_warning("intc: missing unique irq mask for "
+ "irq %d (vect 0x%04x)\n", irq, irq2evt(irq));
+
data[0] = data[0] ? data[0] : intc_mask_data(desc, d, enum_id, 1);
data[1] = data[1] ? data[1] : intc_prio_data(desc, d, enum_id, 1);
@@ -641,6 +645,17 @@ static unsigned int __init save_reg(struct intc_desc_int *d,
return 0;
}
+static unsigned char *intc_evt2irq_table;
+
+unsigned int intc_evt2irq(unsigned int vector)
+{
+ unsigned int irq = evt2irq(vector);
+
+ if (intc_evt2irq_table && intc_evt2irq_table[irq])
+ irq = intc_evt2irq_table[irq];
+
+ return irq;
+}
void __init register_intc_controller(struct intc_desc *desc)
{
@@ -705,9 +720,41 @@ void __init register_intc_controller(struct intc_desc *desc)
BUG_ON(k > 256); /* _INTC_ADDR_E() and _INTC_ADDR_D() are 8 bits */
+ /* keep the first vector only if same enum is used multiple times */
+ for (i = 0; i < desc->nr_vectors; i++) {
+ struct intc_vect *vect = desc->vectors + i;
+ int first_irq = evt2irq(vect->vect);
+
+ if (!vect->enum_id)
+ continue;
+
+ for (k = i + 1; k < desc->nr_vectors; k++) {
+ struct intc_vect *vect2 = desc->vectors + k;
+
+ if (vect->enum_id != vect2->enum_id)
+ continue;
+
+ vect2->enum_id = 0;
+
+ if (!intc_evt2irq_table)
+ intc_evt2irq_table = alloc_bootmem(NR_IRQS);
+
+ if (!intc_evt2irq_table) {
+ pr_warning("intc: cannot allocate evt2irq!\n");
+ continue;
+ }
+
+ intc_evt2irq_table[evt2irq(vect2->vect)] = first_irq;
+ }
+ }
+
+ /* register the vectors one by one */
for (i = 0; i < desc->nr_vectors; i++) {
struct intc_vect *vect = desc->vectors + i;
+ if (!vect->enum_id)
+ continue;
+
intc_register_irq(desc, d, vect->enum_id, evt2irq(vect->vect));
}
}
diff --git a/drivers/sh/maple/maple.c b/drivers/sh/maple/maple.c
index 63f0de29aa14..c71bb4b4ce84 100644
--- a/drivers/sh/maple/maple.c
+++ b/drivers/sh/maple/maple.c
@@ -1,16 +1,10 @@
/*
* Core maple bus functionality
*
- * Copyright (C) 2007, 2008 Adrian McMenamin
+ * Copyright (C) 2007 - 2009 Adrian McMenamin
* Copyright (C) 2001 - 2008 Paul Mundt
- *
- * Based on 2.4 code by:
- *
- * Copyright (C) 2000-2001 YAEGASHI Takeshi
+ * Copyright (C) 2000 - 2001 YAEGASHI Takeshi
* Copyright (C) 2001 M. R. Brown
- * Copyright (C) 2001 Paul Mundt
- *
- * and others.
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
@@ -32,7 +26,7 @@
#include <mach/dma.h>
#include <mach/sysasic.h>
-MODULE_AUTHOR("Yaegashi Takeshi, Paul Mundt, M. R. Brown, Adrian McMenamin");
+MODULE_AUTHOR("Adrian McMenamin <adrian@mcmen.demon.co.uk>");
MODULE_DESCRIPTION("Maple bus driver for Dreamcast");
MODULE_LICENSE("GPL v2");
MODULE_SUPPORTED_DEVICE("{{SEGA, Dreamcast/Maple}}");
@@ -49,7 +43,7 @@ static LIST_HEAD(maple_sentq);
/* mutex to protect queue of waiting packets */
static DEFINE_MUTEX(maple_wlist_lock);
-static struct maple_driver maple_dummy_driver;
+static struct maple_driver maple_unsupported_device;
static struct device maple_bus;
static int subdevice_map[MAPLE_PORTS];
static unsigned long *maple_sendbuf, *maple_sendptr, *maple_lastptr;
@@ -62,8 +56,9 @@ struct maple_device_specify {
int unit;
};
-static bool checked[4];
-static struct maple_device *baseunits[4];
+static bool checked[MAPLE_PORTS];
+static bool empty[MAPLE_PORTS];
+static struct maple_device *baseunits[MAPLE_PORTS];
/**
* maple_driver_register - register a maple driver
@@ -97,12 +92,20 @@ void maple_driver_unregister(struct maple_driver *drv)
EXPORT_SYMBOL_GPL(maple_driver_unregister);
/* set hardware registers to enable next round of dma */
-static void maplebus_dma_reset(void)
+static void maple_dma_reset(void)
{
ctrl_outl(MAPLE_MAGIC, MAPLE_RESET);
/* set trig type to 0 for software trigger, 1 for hardware (VBLANK) */
ctrl_outl(1, MAPLE_TRIGTYPE);
- ctrl_outl(MAPLE_2MBPS | MAPLE_TIMEOUT(50000), MAPLE_SPEED);
+ /*
+ * Maple system register
+ * bits 31 - 16 timeout in units of 20nsec
+ * bit 12 hard trigger - set 0 to keep responding to VBLANK
+ * bits 9 - 8 set 00 for 2 Mbps, 01 for 1 Mbps
+ * bits 3 - 0 delay (in 1.3ms) between VBLANK and start of DMA
+ * max delay is 11
+ */
+ ctrl_outl(MAPLE_2MBPS | MAPLE_TIMEOUT(0xFFFF), MAPLE_SPEED);
ctrl_outl(PHYSADDR(maple_sendbuf), MAPLE_DMAADDR);
ctrl_outl(1, MAPLE_ENABLE);
}
@@ -134,21 +137,16 @@ static void maple_release_device(struct device *dev)
{
struct maple_device *mdev;
struct mapleq *mq;
- if (!dev)
- return;
+
mdev = to_maple_dev(dev);
mq = mdev->mq;
- if (mq) {
- if (mq->recvbufdcsp)
- kmem_cache_free(maple_queue_cache, mq->recvbufdcsp);
- kfree(mq);
- mq = NULL;
- }
+ kmem_cache_free(maple_queue_cache, mq->recvbuf);
+ kfree(mq);
kfree(mdev);
}
/**
- * maple_add_packet - add a single instruction to the queue
+ * maple_add_packet - add a single instruction to the maple bus queue
* @mdev: maple device
* @function: function on device being queried
* @command: maple command to add
@@ -158,68 +156,12 @@ static void maple_release_device(struct device *dev)
int maple_add_packet(struct maple_device *mdev, u32 function, u32 command,
size_t length, void *data)
{
- int locking, ret = 0;
- void *sendbuf = NULL;
-
- mutex_lock(&maple_wlist_lock);
- /* bounce if device already locked */
- locking = mutex_is_locked(&mdev->mq->mutex);
- if (locking) {
- ret = -EBUSY;
- goto out;
- }
-
- mutex_lock(&mdev->mq->mutex);
-
- if (length) {
- sendbuf = kmalloc(length * 4, GFP_KERNEL);
- if (!sendbuf) {
- mutex_unlock(&mdev->mq->mutex);
- ret = -ENOMEM;
- goto out;
- }
- ((__be32 *)sendbuf)[0] = cpu_to_be32(function);
- }
-
- mdev->mq->command = command;
- mdev->mq->length = length;
- if (length > 1)
- memcpy(sendbuf + 4, data, (length - 1) * 4);
- mdev->mq->sendbuf = sendbuf;
-
- list_add(&mdev->mq->list, &maple_waitq);
-out:
- mutex_unlock(&maple_wlist_lock);
- return ret;
-}
-EXPORT_SYMBOL_GPL(maple_add_packet);
-
-/**
- * maple_add_packet_sleeps - add a single instruction to the queue
- * @mdev: maple device
- * @function: function on device being queried
- * @command: maple command to add
- * @length: length of command string (in 32 bit words)
- * @data: remainder of command string
- *
- * Same as maple_add_packet(), but waits for the lock to become free.
- */
-int maple_add_packet_sleeps(struct maple_device *mdev, u32 function,
- u32 command, size_t length, void *data)
-{
- int locking, ret = 0;
+ int ret = 0;
void *sendbuf = NULL;
- locking = mutex_lock_interruptible(&mdev->mq->mutex);
- if (locking) {
- ret = -EIO;
- goto out;
- }
-
if (length) {
- sendbuf = kmalloc(length * 4, GFP_KERNEL);
+ sendbuf = kzalloc(length * 4, GFP_KERNEL);
if (!sendbuf) {
- mutex_unlock(&mdev->mq->mutex);
ret = -ENOMEM;
goto out;
}
@@ -233,38 +175,35 @@ int maple_add_packet_sleeps(struct maple_device *mdev, u32 function,
mdev->mq->sendbuf = sendbuf;
mutex_lock(&maple_wlist_lock);
- list_add(&mdev->mq->list, &maple_waitq);
+ list_add_tail(&mdev->mq->list, &maple_waitq);
mutex_unlock(&maple_wlist_lock);
out:
return ret;
}
-EXPORT_SYMBOL_GPL(maple_add_packet_sleeps);
+EXPORT_SYMBOL_GPL(maple_add_packet);
static struct mapleq *maple_allocq(struct maple_device *mdev)
{
struct mapleq *mq;
- mq = kmalloc(sizeof(*mq), GFP_KERNEL);
+ mq = kzalloc(sizeof(*mq), GFP_KERNEL);
if (!mq)
goto failed_nomem;
+ INIT_LIST_HEAD(&mq->list);
mq->dev = mdev;
- mq->recvbufdcsp = kmem_cache_zalloc(maple_queue_cache, GFP_KERNEL);
- mq->recvbuf = (void *) P2SEGADDR(mq->recvbufdcsp);
+ mq->recvbuf = kmem_cache_zalloc(maple_queue_cache, GFP_KERNEL);
if (!mq->recvbuf)
goto failed_p2;
- /*
- * most devices do not need the mutex - but
- * anything that injects block reads or writes
- * will rely on it
- */
- mutex_init(&mq->mutex);
+ mq->recvbuf->buf = &((mq->recvbuf->bufx)[0]);
return mq;
failed_p2:
kfree(mq);
failed_nomem:
+ dev_err(&mdev->dev, "could not allocate memory for device (%d, %d)\n",
+ mdev->port, mdev->unit);
return NULL;
}
@@ -272,12 +211,16 @@ static struct maple_device *maple_alloc_dev(int port, int unit)
{
struct maple_device *mdev;
+ /* zero this out to avoid kobj subsystem
+ * thinking it has already been registered */
+
mdev = kzalloc(sizeof(*mdev), GFP_KERNEL);
if (!mdev)
return NULL;
mdev->port = port;
mdev->unit = unit;
+
mdev->mq = maple_allocq(mdev);
if (!mdev->mq) {
@@ -286,19 +229,14 @@ static struct maple_device *maple_alloc_dev(int port, int unit)
}
mdev->dev.bus = &maple_bus_type;
mdev->dev.parent = &maple_bus;
+ init_waitqueue_head(&mdev->maple_wait);
return mdev;
}
static void maple_free_dev(struct maple_device *mdev)
{
- if (!mdev)
- return;
- if (mdev->mq) {
- if (mdev->mq->recvbufdcsp)
- kmem_cache_free(maple_queue_cache,
- mdev->mq->recvbufdcsp);
- kfree(mdev->mq);
- }
+ kmem_cache_free(maple_queue_cache, mdev->mq->recvbuf);
+ kfree(mdev->mq);
kfree(mdev);
}
@@ -320,7 +258,7 @@ static void maple_build_block(struct mapleq *mq)
maple_lastptr = maple_sendptr;
*maple_sendptr++ = (port << 16) | len | 0x80000000;
- *maple_sendptr++ = PHYSADDR(mq->recvbuf);
+ *maple_sendptr++ = PHYSADDR(mq->recvbuf->buf);
*maple_sendptr++ =
mq->command | (to << 8) | (from << 16) | (len << 24);
while (len-- > 0)
@@ -333,20 +271,28 @@ static void maple_send(void)
int i, maple_packets = 0;
struct mapleq *mq, *nmq;
- if (!list_empty(&maple_sentq))
+ if (!maple_dma_done())
return;
+
+ /* disable DMA */
+ ctrl_outl(0, MAPLE_ENABLE);
+
+ if (!list_empty(&maple_sentq))
+ goto finish;
+
mutex_lock(&maple_wlist_lock);
- if (list_empty(&maple_waitq) || !maple_dma_done()) {
+ if (list_empty(&maple_waitq)) {
mutex_unlock(&maple_wlist_lock);
- return;
+ goto finish;
}
- mutex_unlock(&maple_wlist_lock);
+
maple_lastptr = maple_sendbuf;
maple_sendptr = maple_sendbuf;
- mutex_lock(&maple_wlist_lock);
+
list_for_each_entry_safe(mq, nmq, &maple_waitq, list) {
maple_build_block(mq);
- list_move(&mq->list, &maple_sentq);
+ list_del_init(&mq->list);
+ list_add_tail(&mq->list, &maple_sentq);
if (maple_packets++ > MAPLE_MAXPACKETS)
break;
}
@@ -356,10 +302,13 @@ static void maple_send(void)
dma_cache_sync(0, maple_sendbuf + i * PAGE_SIZE,
PAGE_SIZE, DMA_BIDIRECTIONAL);
}
+
+finish:
+ maple_dma_reset();
}
/* check if there is a driver registered likely to match this device */
-static int check_matching_maple_driver(struct device_driver *driver,
+static int maple_check_matching_driver(struct device_driver *driver,
void *devptr)
{
struct maple_driver *maple_drv;
@@ -374,10 +323,7 @@ static int check_matching_maple_driver(struct device_driver *driver,
static void maple_detach_driver(struct maple_device *mdev)
{
- if (!mdev)
- return;
device_unregister(&mdev->dev);
- mdev = NULL;
}
/* process initial MAPLE_COMMAND_DEVINFO for each device or port */
@@ -385,9 +331,9 @@ static void maple_attach_driver(struct maple_device *mdev)
{
char *p, *recvbuf;
unsigned long function;
- int matched, retval;
+ int matched, error;
- recvbuf = mdev->mq->recvbuf;
+ recvbuf = mdev->mq->recvbuf->buf;
/* copy the data as individual elements in
* case of memory optimisation */
memcpy(&mdev->devinfo.function, recvbuf + 4, 4);
@@ -395,7 +341,6 @@ static void maple_attach_driver(struct maple_device *mdev)
memcpy(&mdev->devinfo.area_code, recvbuf + 20, 1);
memcpy(&mdev->devinfo.connector_direction, recvbuf + 21, 1);
memcpy(&mdev->devinfo.product_name[0], recvbuf + 22, 30);
- memcpy(&mdev->devinfo.product_licence[0], recvbuf + 52, 60);
memcpy(&mdev->devinfo.standby_power, recvbuf + 112, 2);
memcpy(&mdev->devinfo.max_power, recvbuf + 114, 2);
memcpy(mdev->product_name, mdev->devinfo.product_name, 30);
@@ -414,43 +359,40 @@ static void maple_attach_driver(struct maple_device *mdev)
else
break;
- printk(KERN_INFO "Maple device detected: %s\n",
- mdev->product_name);
- printk(KERN_INFO "Maple device: %s\n", mdev->product_licence);
-
function = be32_to_cpu(mdev->devinfo.function);
+ dev_info(&mdev->dev, "detected %s: function 0x%lX: at (%d, %d)\n",
+ mdev->product_name, function, mdev->port, mdev->unit);
+
if (function > 0x200) {
/* Do this silently - as not a real device */
function = 0;
- mdev->driver = &maple_dummy_driver;
- sprintf(mdev->dev.bus_id, "%d:0.port", mdev->port);
+ mdev->driver = &maple_unsupported_device;
+ dev_set_name(&mdev->dev, "%d:0.port", mdev->port);
} else {
- printk(KERN_INFO
- "Maple bus at (%d, %d): Function 0x%lX\n",
- mdev->port, mdev->unit, function);
-
matched =
bus_for_each_drv(&maple_bus_type, NULL, mdev,
- check_matching_maple_driver);
+ maple_check_matching_driver);
if (matched == 0) {
/* Driver does not exist yet */
- printk(KERN_INFO
- "No maple driver found.\n");
- mdev->driver = &maple_dummy_driver;
+ dev_info(&mdev->dev, "no driver found\n");
+ mdev->driver = &maple_unsupported_device;
}
- sprintf(mdev->dev.bus_id, "%d:0%d.%lX", mdev->port,
- mdev->unit, function);
+
+ dev_set_name(&mdev->dev, "%d:0%d.%lX", mdev->port,
+ mdev->unit, function);
}
+
mdev->function = function;
mdev->dev.release = &maple_release_device;
- retval = device_register(&mdev->dev);
- if (retval) {
- printk(KERN_INFO
- "Maple bus: Attempt to register device"
- " (%x, %x) failed.\n",
- mdev->port, mdev->unit);
+
+ atomic_set(&mdev->busy, 0);
+ error = device_register(&mdev->dev);
+ if (error) {
+ dev_warn(&mdev->dev, "could not register device at"
+ " (%d, %d), with error 0x%X\n", mdev->unit,
+ mdev->port, error);
maple_free_dev(mdev);
mdev = NULL;
return;
@@ -462,7 +404,7 @@ static void maple_attach_driver(struct maple_device *mdev)
* port and unit then return 1 - allows identification
* of which devices need to be attached or detached
*/
-static int detach_maple_device(struct device *device, void *portptr)
+static int check_maple_device(struct device *device, void *portptr)
{
struct maple_device_specify *ds;
struct maple_device *mdev;
@@ -477,21 +419,25 @@ static int detach_maple_device(struct device *device, void *portptr)
static int setup_maple_commands(struct device *device, void *ignored)
{
int add;
- struct maple_device *maple_dev = to_maple_dev(device);
-
- if ((maple_dev->interval > 0)
- && time_after(jiffies, maple_dev->when)) {
- /* bounce if we cannot lock */
- add = maple_add_packet(maple_dev,
- be32_to_cpu(maple_dev->devinfo.function),
+ struct maple_device *mdev = to_maple_dev(device);
+ if (mdev->interval > 0 && atomic_read(&mdev->busy) == 0 &&
+ time_after(jiffies, mdev->when)) {
+ /* bounce if we cannot add */
+ add = maple_add_packet(mdev,
+ be32_to_cpu(mdev->devinfo.function),
MAPLE_COMMAND_GETCOND, 1, NULL);
if (!add)
- maple_dev->when = jiffies + maple_dev->interval;
+ mdev->when = jiffies + mdev->interval;
} else {
if (time_after(jiffies, maple_pnp_time))
- /* This will also bounce */
- maple_add_packet(maple_dev, 0,
- MAPLE_COMMAND_DEVINFO, 0, NULL);
+ /* Ensure we don't have block reads and devinfo
+ * calls interfering with one another - so flag the
+ * device as busy */
+ if (atomic_read(&mdev->busy) == 0) {
+ atomic_set(&mdev->busy, 1);
+ maple_add_packet(mdev, 0,
+ MAPLE_COMMAND_DEVINFO, 0, NULL);
+ }
}
return 0;
}
@@ -499,29 +445,50 @@ static int setup_maple_commands(struct device *device, void *ignored)
/* VBLANK bottom half - implemented via workqueue */
static void maple_vblank_handler(struct work_struct *work)
{
- if (!list_empty(&maple_sentq) || !maple_dma_done())
+ int x, locking;
+ struct maple_device *mdev;
+
+ if (!maple_dma_done())
return;
ctrl_outl(0, MAPLE_ENABLE);
+ if (!list_empty(&maple_sentq))
+ goto finish;
+
+ /*
+ * Set up essential commands - to fetch data and
+ * check devices are still present
+ */
bus_for_each_dev(&maple_bus_type, NULL, NULL,
- setup_maple_commands);
+ setup_maple_commands);
+
+ if (time_after(jiffies, maple_pnp_time)) {
+ /*
+ * Scan the empty ports - bus is flakey and may have
+ * mis-reported emptyness
+ */
+ for (x = 0; x < MAPLE_PORTS; x++) {
+ if (checked[x] && empty[x]) {
+ mdev = baseunits[x];
+ if (!mdev)
+ break;
+ atomic_set(&mdev->busy, 1);
+ locking = maple_add_packet(mdev, 0,
+ MAPLE_COMMAND_DEVINFO, 0, NULL);
+ if (!locking)
+ break;
+ }
+ }
- if (time_after(jiffies, maple_pnp_time))
maple_pnp_time = jiffies + MAPLE_PNP_INTERVAL;
-
- mutex_lock(&maple_wlist_lock);
- if (!list_empty(&maple_waitq) && list_empty(&maple_sentq)) {
- mutex_unlock(&maple_wlist_lock);
- maple_send();
- } else {
- mutex_unlock(&maple_wlist_lock);
}
- maplebus_dma_reset();
+finish:
+ maple_send();
}
-/* handle devices added via hotplugs - placing them on queue for DEVINFO*/
+/* handle devices added via hotplugs - placing them on queue for DEVINFO */
static void maple_map_subunits(struct maple_device *mdev, int submask)
{
int retval, k, devcheck;
@@ -533,7 +500,7 @@ static void maple_map_subunits(struct maple_device *mdev, int submask)
ds.unit = k + 1;
retval =
bus_for_each_dev(&maple_bus_type, NULL, &ds,
- detach_maple_device);
+ check_maple_device);
if (retval) {
submask = submask >> 1;
continue;
@@ -543,6 +510,7 @@ static void maple_map_subunits(struct maple_device *mdev, int submask)
mdev_add = maple_alloc_dev(mdev->port, k + 1);
if (!mdev_add)
return;
+ atomic_set(&mdev_add->busy, 1);
maple_add_packet(mdev_add, 0, MAPLE_COMMAND_DEVINFO,
0, NULL);
/* mark that we are checking sub devices */
@@ -564,27 +532,45 @@ static void maple_clean_submap(struct maple_device *mdev)
}
/* handle empty port or hotplug removal */
-static void maple_response_none(struct maple_device *mdev,
- struct mapleq *mq)
-{
- if (mdev->unit != 0) {
- list_del(&mq->list);
- maple_clean_submap(mdev);
- printk(KERN_INFO
- "Maple bus device detaching at (%d, %d)\n",
- mdev->port, mdev->unit);
+static void maple_response_none(struct maple_device *mdev)
+{
+ maple_clean_submap(mdev);
+
+ if (likely(mdev->unit != 0)) {
+ /*
+ * Block devices play up
+ * and give the impression they have
+ * been removed even when still in place or
+ * trip the mtd layer when they have
+ * really gone - this code traps that eventuality
+ * and ensures we aren't overloaded with useless
+ * error messages
+ */
+ if (mdev->can_unload) {
+ if (!mdev->can_unload(mdev)) {
+ atomic_set(&mdev->busy, 2);
+ wake_up(&mdev->maple_wait);
+ return;
+ }
+ }
+
+ dev_info(&mdev->dev, "detaching device at (%d, %d)\n",
+ mdev->port, mdev->unit);
maple_detach_driver(mdev);
return;
- }
- if (!started || !fullscan) {
- if (checked[mdev->port] == false) {
- checked[mdev->port] = true;
- printk(KERN_INFO "No maple devices attached"
- " to port %d\n", mdev->port);
+ } else {
+ if (!started || !fullscan) {
+ if (checked[mdev->port] == false) {
+ checked[mdev->port] = true;
+ empty[mdev->port] = true;
+ dev_info(&mdev->dev, "no devices"
+ " to port %d\n", mdev->port);
+ }
+ return;
}
- return;
}
- maple_clean_submap(mdev);
+ /* Some hardware devices generate false detach messages on unit 0 */
+ atomic_set(&mdev->busy, 0);
}
/* preprocess hotplugs or scans */
@@ -599,8 +585,11 @@ static void maple_response_devinfo(struct maple_device *mdev,
} else {
if (mdev->unit != 0)
maple_attach_driver(mdev);
+ if (mdev->unit == 0) {
+ empty[mdev->port] = false;
+ maple_attach_driver(mdev);
+ }
}
- return;
}
if (mdev->unit == 0) {
submask = recvbuf[2] & 0x1F;
@@ -611,6 +600,17 @@ static void maple_response_devinfo(struct maple_device *mdev,
}
}
+static void maple_response_fileerr(struct maple_device *mdev, void *recvbuf)
+{
+ if (mdev->fileerr_handler) {
+ mdev->fileerr_handler(mdev, recvbuf);
+ return;
+ } else
+ dev_warn(&mdev->dev, "device at (%d, %d) reports"
+ "file error 0x%X\n", mdev->port, mdev->unit,
+ ((int *)recvbuf)[1]);
+}
+
static void maple_port_rescan(void)
{
int i;
@@ -621,12 +621,6 @@ static void maple_port_rescan(void)
if (checked[i] == false) {
fullscan = 0;
mdev = baseunits[i];
- /*
- * test lock in case scan has failed
- * but device is still locked
- */
- if (mutex_is_locked(&mdev->mq->mutex))
- mutex_unlock(&mdev->mq->mutex);
maple_add_packet(mdev, 0, MAPLE_COMMAND_DEVINFO,
0, NULL);
}
@@ -637,7 +631,7 @@ static void maple_port_rescan(void)
static void maple_dma_handler(struct work_struct *work)
{
struct mapleq *mq, *nmq;
- struct maple_device *dev;
+ struct maple_device *mdev;
char *recvbuf;
enum maple_code code;
@@ -646,43 +640,56 @@ static void maple_dma_handler(struct work_struct *work)
ctrl_outl(0, MAPLE_ENABLE);
if (!list_empty(&maple_sentq)) {
list_for_each_entry_safe(mq, nmq, &maple_sentq, list) {
- recvbuf = mq->recvbuf;
+ mdev = mq->dev;
+ recvbuf = mq->recvbuf->buf;
+ dma_cache_sync(&mdev->dev, recvbuf, 0x400,
+ DMA_FROM_DEVICE);
code = recvbuf[0];
- dev = mq->dev;
kfree(mq->sendbuf);
- mutex_unlock(&mq->mutex);
list_del_init(&mq->list);
-
switch (code) {
case MAPLE_RESPONSE_NONE:
- maple_response_none(dev, mq);
+ maple_response_none(mdev);
break;
case MAPLE_RESPONSE_DEVINFO:
- maple_response_devinfo(dev, recvbuf);
+ maple_response_devinfo(mdev, recvbuf);
+ atomic_set(&mdev->busy, 0);
break;
case MAPLE_RESPONSE_DATATRF:
- if (dev->callback)
- dev->callback(mq);
+ if (mdev->callback)
+ mdev->callback(mq);
+ atomic_set(&mdev->busy, 0);
+ wake_up(&mdev->maple_wait);
break;
case MAPLE_RESPONSE_FILEERR:
+ maple_response_fileerr(mdev, recvbuf);
+ atomic_set(&mdev->busy, 0);
+ wake_up(&mdev->maple_wait);
+ break;
+
case MAPLE_RESPONSE_AGAIN:
case MAPLE_RESPONSE_BADCMD:
case MAPLE_RESPONSE_BADFUNC:
- printk(KERN_DEBUG
- "Maple non-fatal error 0x%X\n",
- code);
+ dev_warn(&mdev->dev, "non-fatal error"
+ " 0x%X at (%d, %d)\n", code,
+ mdev->port, mdev->unit);
+ atomic_set(&mdev->busy, 0);
break;
case MAPLE_RESPONSE_ALLINFO:
- printk(KERN_DEBUG
- "Maple - extended device information"
- " not supported\n");
+ dev_notice(&mdev->dev, "extended"
+ " device information request for (%d, %d)"
+ " but call is not supported\n", mdev->port,
+ mdev->unit);
+ atomic_set(&mdev->busy, 0);
break;
case MAPLE_RESPONSE_OK:
+ atomic_set(&mdev->busy, 0);
+ wake_up(&mdev->maple_wait);
break;
default:
@@ -699,20 +706,19 @@ static void maple_dma_handler(struct work_struct *work)
if (!fullscan)
maple_port_rescan();
/* mark that we have been through the first scan */
- if (started == 0)
- started = 1;
+ started = 1;
}
- maplebus_dma_reset();
+ maple_send();
}
-static irqreturn_t maplebus_dma_interrupt(int irq, void *dev_id)
+static irqreturn_t maple_dma_interrupt(int irq, void *dev_id)
{
/* Load everything into the bottom half */
schedule_work(&maple_dma_process);
return IRQ_HANDLED;
}
-static irqreturn_t maplebus_vblank_interrupt(int irq, void *dev_id)
+static irqreturn_t maple_vblank_interrupt(int irq, void *dev_id)
{
schedule_work(&maple_vblank_process);
return IRQ_HANDLED;
@@ -720,14 +726,14 @@ static irqreturn_t maplebus_vblank_interrupt(int irq, void *dev_id)
static int maple_set_dma_interrupt_handler(void)
{
- return request_irq(HW_EVENT_MAPLE_DMA, maplebus_dma_interrupt,
- IRQF_SHARED, "maple bus DMA", &maple_dummy_driver);
+ return request_irq(HW_EVENT_MAPLE_DMA, maple_dma_interrupt,
+ IRQF_SHARED, "maple bus DMA", &maple_unsupported_device);
}
static int maple_set_vblank_interrupt_handler(void)
{
- return request_irq(HW_EVENT_VSYNC, maplebus_vblank_interrupt,
- IRQF_SHARED, "maple bus VBLANK", &maple_dummy_driver);
+ return request_irq(HW_EVENT_VSYNC, maple_vblank_interrupt,
+ IRQF_SHARED, "maple bus VBLANK", &maple_unsupported_device);
}
static int maple_get_dma_buffer(void)
@@ -740,7 +746,7 @@ static int maple_get_dma_buffer(void)
return 0;
}
-static int match_maple_bus_driver(struct device *devptr,
+static int maple_match_bus_driver(struct device *devptr,
struct device_driver *drvptr)
{
struct maple_driver *maple_drv = to_maple_driver(drvptr);
@@ -765,22 +771,24 @@ static void maple_bus_release(struct device *dev)
{
}
-static struct maple_driver maple_dummy_driver = {
+static struct maple_driver maple_unsupported_device = {
.drv = {
- .name = "maple_dummy_driver",
+ .name = "maple_unsupported_device",
.bus = &maple_bus_type,
},
};
-
+/**
+ * maple_bus_type - core maple bus structure
+ */
struct bus_type maple_bus_type = {
.name = "maple",
- .match = match_maple_bus_driver,
+ .match = maple_match_bus_driver,
.uevent = maple_bus_uevent,
};
EXPORT_SYMBOL_GPL(maple_bus_type);
static struct device maple_bus = {
- .bus_id = "maple",
+ .init_name = "maple",
.release = maple_bus_release,
};
@@ -788,7 +796,8 @@ static int __init maple_bus_init(void)
{
int retval, i;
struct maple_device *mdev[MAPLE_PORTS];
- ctrl_outl(0, MAPLE_STATE);
+
+ ctrl_outl(0, MAPLE_ENABLE);
retval = device_register(&maple_bus);
if (retval)
@@ -798,36 +807,33 @@ static int __init maple_bus_init(void)
if (retval)
goto cleanup_device;
- retval = driver_register(&maple_dummy_driver.drv);
+ retval = driver_register(&maple_unsupported_device.drv);
if (retval)
goto cleanup_bus;
/* allocate memory for maple bus dma */
retval = maple_get_dma_buffer();
if (retval) {
- printk(KERN_INFO
- "Maple bus: Failed to allocate Maple DMA buffers\n");
+ dev_err(&maple_bus, "failed to allocate DMA buffers\n");
goto cleanup_basic;
}
/* set up DMA interrupt handler */
retval = maple_set_dma_interrupt_handler();
if (retval) {
- printk(KERN_INFO
- "Maple bus: Failed to grab maple DMA IRQ\n");
+ dev_err(&maple_bus, "bus failed to grab maple "
+ "DMA IRQ\n");
goto cleanup_dma;
}
/* set up VBLANK interrupt handler */
retval = maple_set_vblank_interrupt_handler();
if (retval) {
- printk(KERN_INFO "Maple bus: Failed to grab VBLANK IRQ\n");
+ dev_err(&maple_bus, "bus failed to grab VBLANK IRQ\n");
goto cleanup_irq;
}
- maple_queue_cache =
- kmem_cache_create("maple_queue_cache", 0x400, 0,
- SLAB_HWCACHE_ALIGN, NULL);
+ maple_queue_cache = KMEM_CACHE(maple_buffer, SLAB_HWCACHE_ALIGN);
if (!maple_queue_cache)
goto cleanup_bothirqs;
@@ -838,23 +844,23 @@ static int __init maple_bus_init(void)
/* setup maple ports */
for (i = 0; i < MAPLE_PORTS; i++) {
checked[i] = false;
+ empty[i] = false;
mdev[i] = maple_alloc_dev(i, 0);
- baseunits[i] = mdev[i];
if (!mdev[i]) {
while (i-- > 0)
maple_free_dev(mdev[i]);
goto cleanup_cache;
}
+ baseunits[i] = mdev[i];
+ atomic_set(&mdev[i]->busy, 1);
maple_add_packet(mdev[i], 0, MAPLE_COMMAND_DEVINFO, 0, NULL);
subdevice_map[i] = 0;
}
- /* setup maplebus hardware */
- maplebus_dma_reset();
- /* initial detection */
+ maple_pnp_time = jiffies + HZ;
+ /* prepare initial queue */
maple_send();
- maple_pnp_time = jiffies;
- printk(KERN_INFO "Maple bus core now registered.\n");
+ dev_info(&maple_bus, "bus core now registered\n");
return 0;
@@ -871,7 +877,7 @@ cleanup_dma:
free_pages((unsigned long) maple_sendbuf, MAPLE_DMA_PAGES);
cleanup_basic:
- driver_unregister(&maple_dummy_driver.drv);
+ driver_unregister(&maple_unsupported_device.drv);
cleanup_bus:
bus_unregister(&maple_bus_type);
@@ -880,7 +886,7 @@ cleanup_device:
device_unregister(&maple_bus);
cleanup:
- printk(KERN_INFO "Maple bus registration failed\n");
+ printk(KERN_ERR "Maple bus registration failed\n");
return retval;
}
/* Push init to later to ensure hardware gets detected */
diff --git a/drivers/sh/superhyway/superhyway.c b/drivers/sh/superhyway/superhyway.c
index 4d0282b821b5..2d9e7f3d5611 100644
--- a/drivers/sh/superhyway/superhyway.c
+++ b/drivers/sh/superhyway/superhyway.c
@@ -22,7 +22,7 @@
static int superhyway_devices;
static struct device superhyway_bus_device = {
- .bus_id = "superhyway",
+ .init_name = "superhyway",
};
static void superhyway_device_release(struct device *dev)
@@ -83,7 +83,7 @@ int superhyway_add_device(unsigned long base, struct superhyway_device *sdev,
dev->id.id = dev->vcr.mod_id;
sprintf(dev->name, "SuperHyway device %04x", dev->id.id);
- sprintf(dev->dev.bus_id, "%02x", superhyway_devices);
+ dev_set_name(&dev->dev, "%02x", superhyway_devices);
superhyway_devices++;
diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig
index 83babb0a1df7..c6c816b7ecb5 100644
--- a/drivers/usb/Kconfig
+++ b/drivers/usb/Kconfig
@@ -47,6 +47,7 @@ config USB_ARCH_HAS_OHCI
default y if CPU_SUBTYPE_SH7720
default y if CPU_SUBTYPE_SH7721
default y if CPU_SUBTYPE_SH7763
+ default y if CPU_SUBTYPE_SH7786
# more:
default PCI
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 5cf5f1eca4f4..7658589edb1c 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1049,7 +1049,8 @@ MODULE_LICENSE ("GPL");
#if defined(CONFIG_CPU_SUBTYPE_SH7720) || \
defined(CONFIG_CPU_SUBTYPE_SH7721) || \
- defined(CONFIG_CPU_SUBTYPE_SH7763)
+ defined(CONFIG_CPU_SUBTYPE_SH7763) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7786)
#include "ohci-sh.c"
#define PLATFORM_DRIVER ohci_hcd_sh_driver
#endif
diff --git a/drivers/video/pvr2fb.c b/drivers/video/pvr2fb.c
index 0a0fd48a8566..53f8f1100e81 100644
--- a/drivers/video/pvr2fb.c
+++ b/drivers/video/pvr2fb.c
@@ -61,7 +61,7 @@
#include <mach-dreamcast/mach/sysasic.h>
#endif
-#ifdef CONFIG_SH_DMA
+#ifdef CONFIG_PVR2_DMA
#include <linux/pagemap.h>
#include <mach/dma.h>
#include <asm/dma.h>
@@ -188,7 +188,7 @@ static unsigned int is_blanked = 0; /* Is the screen blanked? */
static unsigned long pvr2fb_map;
#endif
-#ifdef CONFIG_SH_DMA
+#ifdef CONFIG_PVR2_DMA
static unsigned int shdma = PVR2_CASCADE_CHAN;
static unsigned int pvr2dma = ONCHIP_NR_DMA_CHANNELS;
#endif
@@ -207,7 +207,7 @@ static irqreturn_t pvr2fb_interrupt(int irq, void *dev_id);
static int pvr2_init_cable(void);
static int pvr2_get_param(const struct pvr2_params *p, const char *s,
int val, int size);
-#ifdef CONFIG_SH_DMA
+#ifdef CONFIG_PVR2_DMA
static ssize_t pvr2fb_write(struct fb_info *info, const char *buf,
size_t count, loff_t *ppos);
#endif
@@ -218,7 +218,7 @@ static struct fb_ops pvr2fb_ops = {
.fb_blank = pvr2fb_blank,
.fb_check_var = pvr2fb_check_var,
.fb_set_par = pvr2fb_set_par,
-#ifdef CONFIG_SH_DMA
+#ifdef CONFIG_PVR2_DMA
.fb_write = pvr2fb_write,
#endif
.fb_fillrect = cfb_fillrect,
@@ -671,7 +671,7 @@ static int pvr2_init_cable(void)
return cable_type;
}
-#ifdef CONFIG_SH_DMA
+#ifdef CONFIG_PVR2_DMA
static ssize_t pvr2fb_write(struct fb_info *info, const char *buf,
size_t count, loff_t *ppos)
{
@@ -743,7 +743,7 @@ out_unmap:
return ret;
}
-#endif /* CONFIG_SH_DMA */
+#endif /* CONFIG_PVR2_DMA */
/**
* pvr2fb_common_init
@@ -893,7 +893,7 @@ static int __init pvr2fb_dc_init(void)
return -EBUSY;
}
-#ifdef CONFIG_SH_DMA
+#ifdef CONFIG_PVR2_DMA
if (request_dma(pvr2dma, "pvr2") != 0) {
free_irq(HW_EVENT_VSYNC, 0);
return -EBUSY;
@@ -915,7 +915,7 @@ static void __exit pvr2fb_dc_exit(void)
}
free_irq(HW_EVENT_VSYNC, 0);
-#ifdef CONFIG_SH_DMA
+#ifdef CONFIG_PVR2_DMA
free_dma(pvr2dma);
#endif
}
diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c
index 2c5d069e5f06..b433b8ac76d9 100644
--- a/drivers/video/sh_mobile_lcdcfb.c
+++ b/drivers/video/sh_mobile_lcdcfb.c
@@ -33,6 +33,8 @@ struct sh_mobile_lcdc_chan {
struct fb_info info;
dma_addr_t dma_handle;
struct fb_deferred_io defio;
+ unsigned long frame_end;
+ wait_queue_head_t frame_end_wait;
};
struct sh_mobile_lcdc_priv {
@@ -226,7 +228,10 @@ static void sh_mobile_lcdc_deferred_io_touch(struct fb_info *info)
static irqreturn_t sh_mobile_lcdc_irq(int irq, void *data)
{
struct sh_mobile_lcdc_priv *priv = data;
+ struct sh_mobile_lcdc_chan *ch;
unsigned long tmp;
+ int is_sub;
+ int k;
/* acknowledge interrupt */
tmp = lcdc_read(priv, _LDINTR);
@@ -234,8 +239,24 @@ static irqreturn_t sh_mobile_lcdc_irq(int irq, void *data)
tmp |= 0x000000ff ^ LDINTR_FS; /* status in low 8 */
lcdc_write(priv, _LDINTR, tmp);
- /* disable clocks */
- sh_mobile_lcdc_clk_off(priv);
+ /* figure out if this interrupt is for main or sub lcd */
+ is_sub = (lcdc_read(priv, _LDSR) & (1 << 10)) ? 1 : 0;
+
+ /* wake up channel and disable clocks*/
+ for (k = 0; k < ARRAY_SIZE(priv->ch); k++) {
+ ch = &priv->ch[k];
+
+ if (!ch->enabled)
+ continue;
+
+ if (is_sub == lcdc_chan_is_sublcd(ch)) {
+ ch->frame_end = 1;
+ wake_up(&ch->frame_end_wait);
+
+ sh_mobile_lcdc_clk_off(priv);
+ }
+ }
+
return IRQ_HANDLED;
}
@@ -448,18 +469,27 @@ static void sh_mobile_lcdc_stop(struct sh_mobile_lcdc_priv *priv)
struct sh_mobile_lcdc_board_cfg *board_cfg;
int k;
- /* tell the board code to disable the panel */
+ /* clean up deferred io and ask board code to disable panel */
for (k = 0; k < ARRAY_SIZE(priv->ch); k++) {
ch = &priv->ch[k];
- board_cfg = &ch->cfg.board_cfg;
- if (board_cfg->display_off)
- board_cfg->display_off(board_cfg->board_data);
- /* cleanup deferred io if enabled */
+ /* deferred io mode:
+ * flush frame, and wait for frame end interrupt
+ * clean up deferred io and enable clock
+ */
if (ch->info.fbdefio) {
+ ch->frame_end = 0;
+ schedule_delayed_work(&ch->info.deferred_work, 0);
+ wait_event(ch->frame_end_wait, ch->frame_end);
fb_deferred_io_cleanup(&ch->info);
ch->info.fbdefio = NULL;
+ sh_mobile_lcdc_clk_on(priv);
}
+
+ board_cfg = &ch->cfg.board_cfg;
+ if (board_cfg->display_off)
+ board_cfg->display_off(board_cfg->board_data);
+
}
/* stop the lcdc */
@@ -652,6 +682,26 @@ static int sh_mobile_lcdc_set_bpp(struct fb_var_screeninfo *var, int bpp)
return 0;
}
+static int sh_mobile_lcdc_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+
+ sh_mobile_lcdc_stop(platform_get_drvdata(pdev));
+ return 0;
+}
+
+static int sh_mobile_lcdc_resume(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+
+ return sh_mobile_lcdc_start(platform_get_drvdata(pdev));
+}
+
+static struct dev_pm_ops sh_mobile_lcdc_dev_pm_ops = {
+ .suspend = sh_mobile_lcdc_suspend,
+ .resume = sh_mobile_lcdc_resume,
+};
+
static int sh_mobile_lcdc_remove(struct platform_device *pdev);
static int __init sh_mobile_lcdc_probe(struct platform_device *pdev)
@@ -707,6 +757,7 @@ static int __init sh_mobile_lcdc_probe(struct platform_device *pdev)
dev_err(&pdev->dev, "unsupported interface type\n");
goto err1;
}
+ init_waitqueue_head(&priv->ch[i].frame_end_wait);
switch (pdata->ch[i].chan) {
case LCDC_CHAN_MAINLCD:
@@ -860,6 +911,7 @@ static struct platform_driver sh_mobile_lcdc_driver = {
.driver = {
.name = "sh_mobile_lcdc_fb",
.owner = THIS_MODULE,
+ .pm = &sh_mobile_lcdc_dev_pm_ops,
},
.probe = sh_mobile_lcdc_probe,
.remove = sh_mobile_lcdc_remove,