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authorMikael Starvik <mikael.starvik@axis.com>2005-07-27 18:44:35 (GMT)
committerLinus Torvalds <torvalds@g5.osdl.org>2005-07-27 23:26:00 (GMT)
commit63245d2cde2be64f172388c2c50862f233c05700 (patch)
treec5f41dca80044bf4820e9c65eaa9844eb89493f6 /include/asm-cris
parent7e9204265b4ec6680fad9abc7a78b94087983916 (diff)
downloadlinux-63245d2cde2be64f172388c2c50862f233c05700.tar.xz
[PATCH] CRIS update: I/O and DMA allocator
Added I/O and DMA allocators to be used by drivers. Signed-off-by: Mikael Starvik <starvik@axis.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-cris')
-rw-r--r--include/asm-cris/arch-v10/dma.h28
-rw-r--r--include/asm-cris/arch-v10/io.h1
-rw-r--r--include/asm-cris/arch-v10/io_interface_mux.h75
3 files changed, 104 insertions, 0 deletions
diff --git a/include/asm-cris/arch-v10/dma.h b/include/asm-cris/arch-v10/dma.h
index 9e078b9..ecb9dba 100644
--- a/include/asm-cris/arch-v10/dma.h
+++ b/include/asm-cris/arch-v10/dma.h
@@ -44,3 +44,31 @@
#define USB_RX_DMA_NBR 9
#endif
+
+enum dma_owner
+{
+ dma_eth,
+ dma_ser0,
+ dma_ser1, /* Async and sync */
+ dma_ser2,
+ dma_ser3, /* Async and sync */
+ dma_ata,
+ dma_par0,
+ dma_par1,
+ dma_ext0,
+ dma_ext1,
+ dma_int6,
+ dma_int7,
+ dma_usb,
+ dma_scsi0,
+ dma_scsi1
+};
+
+/* Masks used by cris_request_dma options: */
+#define DMA_VERBOSE_ON_ERROR (1<<0)
+#define DMA_PANIC_ON_ERROR ((1<<1)|DMA_VERBOSE_ON_ERROR)
+
+int cris_request_dma(unsigned int dmanr, const char * device_id,
+ unsigned options, enum dma_owner owner);
+
+void cris_free_dma(unsigned int dmanr, const char * device_id);
diff --git a/include/asm-cris/arch-v10/io.h b/include/asm-cris/arch-v10/io.h
index 0bc38a0..dd39198 100644
--- a/include/asm-cris/arch-v10/io.h
+++ b/include/asm-cris/arch-v10/io.h
@@ -6,6 +6,7 @@
/* Etrax shadow registers - which live in arch/cris/kernel/shadows.c */
+extern unsigned long gen_config_ii_shadow;
extern unsigned long port_g_data_shadow;
extern unsigned char port_pa_dir_shadow;
extern unsigned char port_pa_data_shadow;
diff --git a/include/asm-cris/arch-v10/io_interface_mux.h b/include/asm-cris/arch-v10/io_interface_mux.h
new file mode 100644
index 0000000..d925000
--- /dev/null
+++ b/include/asm-cris/arch-v10/io_interface_mux.h
@@ -0,0 +1,75 @@
+/* IO interface mux allocator for ETRAX100LX.
+ * Copyright 2004, Axis Communications AB
+ * $Id: io_interface_mux.h,v 1.1 2004/12/13 12:21:53 starvik Exp $
+ */
+
+
+#ifndef _IO_INTERFACE_MUX_H
+#define _IO_INTERFACE_MUX_H
+
+
+/* C.f. ETRAX100LX Designer's Reference 20.9 */
+
+/* The order in enum must match the order of interfaces[] in
+ * io_interface_mux.c */
+enum cris_io_interface {
+ /* Begin Non-multiplexed interfaces */
+ if_eth = 0,
+ if_serial_0,
+ /* End Non-multiplexed interfaces */
+ if_serial_1,
+ if_serial_2,
+ if_serial_3,
+ if_sync_serial_1,
+ if_sync_serial_3,
+ if_shared_ram,
+ if_shared_ram_w,
+ if_par_0,
+ if_par_1,
+ if_par_w,
+ if_scsi8_0,
+ if_scsi8_1,
+ if_scsi_w,
+ if_ata,
+ if_csp,
+ if_i2c,
+ if_usb_1,
+ if_usb_2,
+ /* GPIO pins */
+ if_gpio_grp_a,
+ if_gpio_grp_b,
+ if_gpio_grp_c,
+ if_gpio_grp_d,
+ if_gpio_grp_e,
+ if_gpio_grp_f,
+ if_max_interfaces,
+ if_unclaimed
+};
+
+int cris_request_io_interface(enum cris_io_interface ioif, const char *device_id);
+
+void cris_free_io_interface(enum cris_io_interface ioif);
+
+/* port can be 'a', 'b' or 'g' */
+int cris_io_interface_allocate_pins(const enum cris_io_interface ioif,
+ const char port,
+ const unsigned start_bit,
+ const unsigned stop_bit);
+
+/* port can be 'a', 'b' or 'g' */
+int cris_io_interface_free_pins(const enum cris_io_interface ioif,
+ const char port,
+ const unsigned start_bit,
+ const unsigned stop_bit);
+
+int cris_io_interface_register_watcher(void (*notify)(const unsigned int gpio_in_available,
+ const unsigned int gpio_out_available,
+ const unsigned char pa_available,
+ const unsigned char pb_available));
+
+void cris_io_interface_delete_watcher(void (*notify)(const unsigned int gpio_in_available,
+ const unsigned int gpio_out_available,
+ const unsigned char pa_available,
+ const unsigned char pb_available));
+
+#endif /* _IO_INTERFACE_MUX_H */