From 316c3b4825689afca170576e5a5681302f64fdfa Mon Sep 17 00:00:00 2001
From: Michael Spradling <mike@mspradling.com>
Date: Mon, 29 Jun 2015 21:54:13 -0400
Subject: Add CRC Driver

This patch includes a high level and two low level drivers.

The high level driver is enabled with flag HAL_USE_CRC

The low level drivers include:
    * Hardware CRC for the STM32 cortex processor lines.(when supported)
        * Enabled with flag STM32_CRC_USE_CRC1
        * DMA is enabled with CRC_USE_DMA
          * SYNC api will use DMA, but put calling thread to sleep
          * ASYNC api enabled.
        * DMA Disabled
          * SYNC api spin while calculating CRC
          * ASYNC api disabled
    * Software CRC (3 modes)
        * CRCSW_CRC32_TABLE - Enables crc32 with lookup table.
        * CRCSW_CRC16_TABLE - Enables crc16 with lookup tables.
        * CRCSW_PROGRAMMBLE - Enables any crc done with computation.
          * Can calculate any crc configuration.
        * CRC_USE_DMA obviously not support with software CRC
---
 os/hal/hal.mk | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'os/hal/hal.mk')

diff --git a/os/hal/hal.mk b/os/hal/hal.mk
index 51cda56..c193ef4 100644
--- a/os/hal/hal.mk
+++ b/os/hal/hal.mk
@@ -3,6 +3,7 @@ include ${CHIBIOS}/os/hal/hal.mk
 HALSRC += ${CHIBIOS}/community/os/hal/src/hal_community.c \
           ${CHIBIOS}/community/os/hal/src/nand.c \
           ${CHIBIOS}/community/os/hal/src/onewire.c \
-          ${CHIBIOS}/community/os/hal/src/eicu.c
+          ${CHIBIOS}/community/os/hal/src/eicu.c \
+          ${CHIBIOS}/community/os/hal/src/crc.c
 
 HALINC += ${CHIBIOS}/community/os/hal/include
-- 
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