From: David Brownell <david-b@pacbell.net>
To: Linux Kernel list <linux-kernel@vger.kernel.org>
Cc: Andrew Morton <akpm@osdl.org>,
Andrew Victor <andrew@sanpeople.com>,
Bill Gatliff <bgat@billgatliff.com>,
Haavard Skinnemoen <hskinnemoen@atmel.com>,
jamey.hicks@hp.com, Kevin Hilman <khilman@mvista.com>,
Nicolas Pitre <nico@cam.org>, Russell King <rmk@arm.linux.org.uk>,
Tony Lindgren <tony@atomide.com>,
pHilipp Zabel <philipp.zabel@gmail.com>
Subject: [patch 2.6.20-rc1 2/6] OMAP GPIO wrappers
Date: Wed, 20 Dec 2006 13:09:44 -0800 [thread overview]
Message-ID: <200612201309.45366.david-b@pacbell.net> (raw)
In-Reply-To: <200612201304.03912.david-b@pacbell.net>
This teaches OMAP how to implement the cross-platform GPIO interfaces.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Index: at91/include/asm-arm/arch-omap/gpio.h
===================================================================
--- at91.orig/include/asm-arm/arch-omap/gpio.h 2006-12-19 01:45:33.000000000 -0800
+++ at91/include/asm-arm/arch-omap/gpio.h 2006-12-19 02:06:11.000000000 -0800
@@ -76,4 +76,58 @@ extern void omap_set_gpio_direction(int
extern void omap_set_gpio_dataout(int gpio, int enable);
extern int omap_get_gpio_datain(int gpio);
+/*-------------------------------------------------------------------------*/
+
+/* wrappers for "new style" GPIO calls. the old OMAP-specfic ones should
+ * eventually be removed (along with this errno.h inclusion), and maybe
+ * gpios should put MPUIOs last too.
+ */
+
+#include <asm/errno.h>
+
+static inline int gpio_request(unsigned gpio, const char *label)
+ { return omap_request_gpio(gpio); }
+
+static inline void gpio_free(unsigned gpio)
+ { omap_free_gpio(gpio); }
+
+
+static inline int __gpio_set_direction(unsigned gpio, int is_input)
+{
+ if (cpu_class_is_omap2()) {
+ if (gpio > OMAP_MAX_GPIO_LINES)
+ return -EINVAL;
+ } else {
+ if (gpio > (OMAP_MAX_GPIO_LINES + 16 /* MPUIO */))
+ return -EINVAL;
+ }
+ omap_set_gpio_direction(gpio, is_input);
+ return 0;
+}
+
+static inline int gpio_direction_input(unsigned gpio)
+ { return __gpio_set_direction(gpio, 1); }
+
+static inline int gpio_direction_output(unsigned gpio)
+ { return __gpio_set_direction(gpio, 0); }
+
+
+static inline int gpio_get_value(unsigned gpio)
+ { return omap_get_gpio_datain(gpio); }
+
+static inline void gpio_set_value(unsigned gpio, int value)
+ { omap_set_gpio_dataout(gpio, value); }
+
+#include <asm-generic/gpio.h> /* cansleep wrappers */
+
+static inline int gpio_to_irq(unsigned gpio)
+ { return OMAP_GPIO_IRQ(gpio); }
+
+static inline int irq_to_gpio(unsigned irq)
+{
+ if (cpu_class_is_omap1() && (irq < (IH_MPUIO_BASE + 16)))
+ return (irq - IH_MPUIO_BASE) + OMAP_MAX_GPIO_LINES;
+ return irq - IH_GPIO_BASE;
+}
+
#endif
next prev parent reply other threads:[~2006-12-20 21:19 UTC|newest]
Thread overview: 103+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-11-11 23:41 [patch/rfc 2.6.19-rc5] arch-neutral GPIO calls David Brownell
2006-11-12 1:27 ` H. Peter Anvin
2006-11-12 3:04 ` David Brownell
2006-11-12 3:15 ` H. Peter Anvin
2006-11-13 3:30 ` Bill Gatliff
2006-11-13 17:38 ` Paul Mundt
2006-11-13 17:56 ` Thiago Galesi
2006-11-13 19:25 ` David Brownell
2006-11-13 19:50 ` Bill Gatliff
2006-11-13 18:19 ` Bill Gatliff
2006-11-13 18:38 ` Paul Mundt
2006-11-13 19:29 ` Bill Gatliff
2006-11-13 20:15 ` Paul Mundt
2006-11-20 21:49 ` David Brownell
2006-11-21 3:44 ` Bill Gatliff
2006-11-21 4:45 ` David Brownell
2006-11-21 5:09 ` Bill Gatliff
2006-11-21 5:35 ` David Brownell
2006-11-21 6:09 ` Paul Mundt
2006-11-21 18:13 ` David Brownell
2006-11-22 3:36 ` Bill Gatliff
2006-11-22 3:55 ` Paul Mundt
2006-11-22 4:45 ` [Bulk] " David Brownell
2006-11-22 4:47 ` Bill Gatliff
2006-11-21 15:57 ` Bill Gatliff
2006-11-23 0:40 ` David Brownell
2006-11-30 6:57 ` pHilipp Zabel
2006-11-30 7:29 ` pHilipp Zabel
2006-11-30 22:24 ` David Brownell
2006-11-20 22:15 ` David Brownell
2006-11-21 2:56 ` Bill Gatliff
2006-11-13 20:00 ` David Brownell
2006-11-13 21:30 ` Paul Mundt
2006-11-14 3:21 ` David Brownell
2006-11-13 19:21 ` David Brownell
2006-11-13 19:43 ` Bill Gatliff
2006-11-13 20:15 ` David Brownell
2006-11-13 20:26 ` Bill Gatliff
2006-11-13 20:53 ` David Brownell
2006-11-13 20:58 ` Bill Gatliff
2006-11-13 20:29 ` Bill Gatliff
2006-11-16 14:54 ` [RFC/PATCH] arch-neutral GPIO calls: AVR32 implementation Haavard Skinnemoen
2006-11-20 21:47 ` David Brownell
2006-11-21 3:11 ` Bill Gatliff
2006-11-21 5:06 ` David Brownell
2006-11-21 5:51 ` Bill Gatliff
2006-11-21 18:19 ` David Brownell
2006-11-21 9:11 ` Haavard Skinnemoen
2006-11-21 19:03 ` David Brownell
2006-11-28 12:36 ` [RFC/PATCH] arch-neutral GPIO calls: AVR32 implementation [take 2] Haavard Skinnemoen
2006-11-30 19:05 ` David Brownell
2006-12-01 9:51 ` Haavard Skinnemoen
2006-12-20 21:04 ` [patch 2.6.20-rc1 0/6] arch-neutral GPIO calls David Brownell
2006-12-20 21:08 ` [patch 2.6.20-rc1 1/6] GPIO core David Brownell
2006-12-27 17:49 ` Pavel Machek
2006-12-28 22:05 ` David Brownell
2006-12-29 0:27 ` Pavel Machek
2006-12-30 1:18 ` David Brownell
2007-01-01 20:55 ` Pavel Machek
2007-01-01 21:27 ` David Brownell
2007-01-02 14:18 ` Pavel Machek
2006-12-20 21:09 ` David Brownell [this message]
2006-12-20 21:11 ` [patch 2.6.20-rc1 3/6] AT91 GPIO wrappers David Brownell
2006-12-21 6:10 ` Andrew Morton
2006-12-21 6:45 ` David Brownell
2006-12-20 21:12 ` [patch 2.6.20-rc1 4/6] PXA " David Brownell
2006-12-21 6:12 ` Andrew Morton
2006-12-21 6:44 ` David Brownell
2006-12-21 14:27 ` Nicolas Pitre
2006-12-21 15:03 ` pHilipp Zabel
2006-12-21 17:25 ` Nicolas Pitre
2006-12-21 19:32 ` pHilipp Zabel
2006-12-21 20:10 ` Nicolas Pitre
2006-12-21 20:32 ` Bill Gatliff
2006-12-22 6:53 ` pHilipp Zabel
2006-12-28 20:47 ` David Brownell
2006-12-30 2:15 ` Nicolas Pitre
2006-12-30 2:38 ` David Brownell
2007-01-01 19:43 ` David Brownell
2006-12-30 1:13 ` David Brownell
2006-12-21 19:25 ` David Brownell
2006-12-27 17:53 ` Pavel Machek
2006-12-28 20:48 ` David Brownell
2006-12-28 20:50 ` Pavel Machek
2006-12-28 20:53 ` Pavel Machek
2006-12-20 21:13 ` [patch 2.6.20-rc1 5/6] SA1100 " David Brownell
2006-12-21 6:13 ` Andrew Morton
2006-12-22 7:16 ` pHilipp Zabel
2006-12-22 15:05 ` Nicolas Pitre
2006-12-30 2:21 ` David Brownell
2006-12-30 3:15 ` Nicolas Pitre
2006-12-30 6:01 ` David Brownell
2006-12-30 13:59 ` pHilipp Zabel
2006-12-30 15:08 ` Russell King
2006-12-23 11:37 ` Russell King
2006-12-23 20:39 ` David Brownell
2006-12-27 18:24 ` Pavel Machek
2006-12-20 21:14 ` [patch 2.6.20-rc1 6/6] S3C2410 " David Brownell
2006-12-21 10:33 ` Arnaud Patard
2006-12-21 15:29 ` pHilipp Zabel
2006-12-23 11:40 ` Russell King
2006-12-20 23:30 ` [patch 2.6.20-rc1 0/6] arch-neutral GPIO calls Håvard Skinnemoen
2006-12-20 23:46 ` David Brownell
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