From: Jeff Garzik Date: Fri, 19 Oct 2007 05:42:14 +0000 (-0400) Subject: [PARPORT] Consolidate code copies into a single generic irq handler X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=3f2e40df0e1d7694224c3083b0bebd129039a40a;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git [PARPORT] Consolidate code copies into a single generic irq handler Several arches used the exact same code for their parport irq handling. Make that code generic, in parport_irq_handler(). Also, s/__inline__/inline/ in include/linux/parport.h. Signed-off-by: Jeff Garzik --- diff --git a/drivers/parport/parport_amiga.c b/drivers/parport/parport_amiga.c index a0afaee5ebe5..1586e1caa2f5 100644 --- a/drivers/parport/parport_amiga.c +++ b/drivers/parport/parport_amiga.c @@ -137,13 +137,6 @@ static unsigned char amiga_read_status(struct parport *p) return status; } -/* as this ports irq handling is already done, we use a generic funktion */ -static irqreturn_t amiga_interrupt(int irq, void *dev_id) -{ - parport_generic_irq(irq, (struct parport *) dev_id); - return IRQ_HANDLED; -} - static void amiga_enable_irq(struct parport *p) { enable_irq(IRQ_AMIGA_CIAA_FLG); @@ -255,7 +248,7 @@ static int __init parport_amiga_init(void) if (!p) goto out_port; - err = request_irq(IRQ_AMIGA_CIAA_FLG, amiga_interrupt, 0, p->name, p); + err = request_irq(IRQ_AMIGA_CIAA_FLG, parport_irq_handler, 0, p->name, p); if (err) goto out_irq; diff --git a/drivers/parport/parport_atari.c b/drivers/parport/parport_atari.c index 6ea9929b8c7f..ad4cdd256137 100644 --- a/drivers/parport/parport_atari.c +++ b/drivers/parport/parport_atari.c @@ -103,13 +103,6 @@ parport_atari_restore_state(struct parport *p, struct parport_state *s) { } -static irqreturn_t -parport_atari_interrupt(int irq, void *dev_id) -{ - parport_generic_irq(irq, (struct parport *) dev_id); - return IRQ_HANDLED; -} - static void parport_atari_enable_irq(struct parport *p) { @@ -208,7 +201,7 @@ static int __init parport_atari_init(void) &parport_atari_ops); if (!p) return -ENODEV; - if (request_irq(IRQ_MFP_BUSY, parport_atari_interrupt, + if (request_irq(IRQ_MFP_BUSY, parport_irq_handler, IRQ_TYPE_SLOW, p->name, p)) { parport_put_port (p); return -ENODEV; diff --git a/drivers/parport/parport_ax88796.c b/drivers/parport/parport_ax88796.c index 74f4e9742c6c..4ec220b2eae7 100644 --- a/drivers/parport/parport_ax88796.c +++ b/drivers/parport/parport_ax88796.c @@ -232,14 +232,6 @@ parport_ax88796_restore_state(struct parport *p, struct parport_state *s) writeb(s->u.ax88796.cpr, dd->spp_cpr); } -static irqreturn_t -parport_ax88796_interrupt(int irq, void *dev_id) -{ - parport_generic_irq(irq, dev_id); - return IRQ_HANDLED; -} - - static struct parport_operations parport_ax88796_ops = { .write_data = parport_ax88796_write_data, .read_data = parport_ax88796_read_data, @@ -344,7 +336,7 @@ static int parport_ax88796_probe(struct platform_device *pdev) if (irq >= 0) { /* request irq */ - ret = request_irq(irq, parport_ax88796_interrupt, + ret = request_irq(irq, parport_irq_handler, IRQF_TRIGGER_FALLING, pdev->name, pp); if (ret < 0) diff --git a/drivers/parport/parport_gsc.c b/drivers/parport/parport_gsc.c index 43652ba523eb..0e77ae2b71a0 100644 --- a/drivers/parport/parport_gsc.c +++ b/drivers/parport/parport_gsc.c @@ -80,12 +80,6 @@ static int clear_epp_timeout(struct parport *pb) * of these are in parport_gsc.h. */ -static irqreturn_t parport_gsc_interrupt(int irq, void *dev_id) -{ - parport_generic_irq(irq, (struct parport *) dev_id); - return IRQ_HANDLED; -} - void parport_gsc_init_state(struct pardevice *dev, struct parport_state *s) { s->u.pc.ctr = 0xc | (dev->irq_func ? 0x10 : 0x0); @@ -324,7 +318,7 @@ struct parport *__devinit parport_gsc_probe_port (unsigned long base, printk("]\n"); if (p->irq != PARPORT_IRQ_NONE) { - if (request_irq (p->irq, parport_gsc_interrupt, + if (request_irq (p->irq, parport_irq_handler, 0, p->name, p)) { printk (KERN_WARNING "%s: irq %d in use, " "resorting to polled operation\n", diff --git a/drivers/parport/parport_ip32.c b/drivers/parport/parport_ip32.c index ec44efdbb84e..6d58bf895b1a 100644 --- a/drivers/parport/parport_ip32.c +++ b/drivers/parport/parport_ip32.c @@ -778,14 +778,16 @@ static irqreturn_t parport_ip32_interrupt(int irq, void *dev_id) struct parport * const p = dev_id; struct parport_ip32_private * const priv = p->physport->private_data; enum parport_ip32_irq_mode irq_mode = priv->irq_mode; + switch (irq_mode) { case PARPORT_IP32_IRQ_FWD: - parport_generic_irq(irq, p); - break; + return parport_irq_handler(irq, dev_id); + case PARPORT_IP32_IRQ_HERE: parport_ip32_wakeup(p); break; } + return IRQ_HANDLED; } diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c index e2be84001105..e9743d3efaf6 100644 --- a/drivers/parport/parport_pc.c +++ b/drivers/parport/parport_pc.c @@ -272,13 +272,6 @@ static int clear_epp_timeout(struct parport *pb) * of these are in parport_pc.h. */ -static irqreturn_t parport_pc_interrupt(int irq, void *dev_id) -{ - parport_generic_irq(irq, (struct parport *) dev_id); - /* FIXME! Was it really ours? */ - return IRQ_HANDLED; -} - static void parport_pc_init_state(struct pardevice *dev, struct parport_state *s) { s->u.pc.ctr = 0xc; @@ -2301,7 +2294,7 @@ struct parport *parport_pc_probe_port (unsigned long int base, EPP_res = NULL; } if (p->irq != PARPORT_IRQ_NONE) { - if (request_irq (p->irq, parport_pc_interrupt, + if (request_irq (p->irq, parport_irq_handler, 0, p->name, p)) { printk (KERN_WARNING "%s: irq %d in use, " "resorting to polled operation\n", diff --git a/drivers/parport/parport_sunbpp.c b/drivers/parport/parport_sunbpp.c index d27019c2f860..9d595aa91e46 100644 --- a/drivers/parport/parport_sunbpp.c +++ b/drivers/parport/parport_sunbpp.c @@ -46,12 +46,6 @@ #define dprintk(x) #endif -static irqreturn_t parport_sunbpp_interrupt(int irq, void *dev_id) -{ - parport_generic_irq(irq, (struct parport *) dev_id); - return IRQ_HANDLED; -} - static void parport_sunbpp_disable_irq(struct parport *p) { struct bpp_regs __iomem *regs = (struct bpp_regs __iomem *)p->base; @@ -324,7 +318,7 @@ static int __devinit init_one_port(struct sbus_dev *sdev) p->size = size; p->dev = &sdev->ofdev.dev; - if ((err = request_irq(p->irq, parport_sunbpp_interrupt, + if ((err = request_irq(p->irq, parport_irq_handler, IRQF_SHARED, p->name, p)) != 0) { goto out_put_port; } diff --git a/drivers/parport/share.c b/drivers/parport/share.c index cd66442acfee..414c52a5883a 100644 --- a/drivers/parport/share.c +++ b/drivers/parport/share.c @@ -995,6 +995,15 @@ void parport_release(struct pardevice *dev) } } +irqreturn_t parport_irq_handler(int irq, void *dev_id) +{ + struct parport *port = dev_id; + + parport_generic_irq(irq, port); + + return IRQ_HANDLED; +} + /* Exported symbols for modules. */ EXPORT_SYMBOL(parport_claim); @@ -1011,5 +1020,6 @@ EXPORT_SYMBOL(parport_get_port); EXPORT_SYMBOL(parport_put_port); EXPORT_SYMBOL(parport_find_number); EXPORT_SYMBOL(parport_find_base); +EXPORT_SYMBOL(parport_irq_handler); MODULE_LICENSE("GPL"); diff --git a/include/linux/parport.h b/include/linux/parport.h index ec3f76598327..66026eab10c7 100644 --- a/include/linux/parport.h +++ b/include/linux/parport.h @@ -100,6 +100,7 @@ typedef enum { #include #include #include +#include #include #include #include @@ -366,6 +367,9 @@ extern void parport_unregister_driver (struct parport_driver *); extern struct parport *parport_find_number (int); extern struct parport *parport_find_base (unsigned long); +/* generic irq handler, if it suits your needs */ +extern irqreturn_t parport_irq_handler(int irq, void *dev_id); + /* Reference counting for ports. */ extern struct parport *parport_get_port (struct parport *); extern void parport_put_port (struct parport *); @@ -514,7 +518,7 @@ extern void parport_daisy_deselect_all (struct parport *port); extern int parport_daisy_select (struct parport *port, int daisy, int mode); /* Lowlevel drivers _can_ call this support function to handle irqs. */ -static __inline__ void parport_generic_irq(int irq, struct parport *port) +static inline void parport_generic_irq(int irq, struct parport *port) { parport_ieee1284_interrupt (irq, port); read_lock(&port->cad_lock);