contiki/cpu
Michael LeMay c815fa4511 x86: Use shared ISR for I2C and GPIO
This patch permits interrupts to be generated by both the I2C and GPIO
controllers for simultaneously-executing applications. The controllers
share a single interrupt pin, INTC. Prior to this patch,
quarkX1000_gpio_init() routed INTA to PIRQC and IRQ 10 (due to an
incorrect assumption that INTA is connected to the GPIO controller),
and quarkX1000_i2c_init() routed INTC to PIRQC and IRQ 9. The I2C
controller initialization is a prerequisite for GPIO initialization,
so the final configuration was that INTA and INTC were both routed to
PIRQC and IRQ 10. Thus, only the GPIO ISR was being invoked, even if
the I2C controller was actually responsible for the interrupt.

This patch refactors the I2C and GPIO ISR setup and handler code so
that the shared portions are combined in
cpu/x86/drivers/legacy_pc/shared-isr.[ch].  The I2C and GPIO drivers
communicate their interrupt information to the shared component by
placing structures in a specific section of the binary.
2016-02-16 21:19:44 -08:00
..
6502 Removed CC_FASTCALL. 2015-11-01 18:10:17 +01:00
arm Merge pull request #1344 from tsparber/fix-doxygen 2015-11-30 22:07:15 +01:00
avr Merge pull request #1344 from tsparber/fix-doxygen 2015-11-30 22:07:15 +01:00
cc26xx-cc13xx Allow the caller to access the entire content of CMDSTA 2016-01-24 13:39:14 +00:00
cc253x Removed CC_FASTCALL. 2015-11-01 18:10:17 +01:00
cc2538 cc2538: Fix GCC 5 warning 2016-01-09 15:43:20 +01:00
mc1322x Merge pull request #1344 from tsparber/fix-doxygen 2015-11-30 22:07:15 +01:00
msp430 Adding definitions required for TSCH to the sky and z1 platforms 2015-12-04 15:21:53 +01:00
native Merge pull request #1293 from simonduq/pr/fix-warnings 2015-11-10 08:49:11 +01:00
pic32 [cpu/pic32] Removed excess end group 2014-11-10 23:53:33 +01:00
rl78 The -pedantic and -stdc flags trigger a few too many warnings 2015-10-20 10:11:35 +02:00
stm32w108 Merge pull request #1344 from tsparber/fix-doxygen 2015-11-30 22:07:15 +01:00
x86 x86: Use shared ISR for I2C and GPIO 2016-02-16 21:19:44 -08:00