From 7002cb8380406173407c9e8c8d16ebd670fff55c Mon Sep 17 00:00:00 2001
From: Josh Rahm <joshuarahm@gmail.com>
Date: Fri, 4 Dec 2020 23:16:31 -0700
Subject: Added kernel-level abstraction over the spi interface.

---
 tests/test_spi.c | 63 ++++++++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 61 insertions(+), 2 deletions(-)

(limited to 'tests')

diff --git a/tests/test_spi.c b/tests/test_spi.c
index 866f6e8..7e60c60 100644
--- a/tests/test_spi.c
+++ b/tests/test_spi.c
@@ -1,10 +1,69 @@
+#include <stdio.h>
+
+#include "arch/stm32l4xxx/peripherals/rcc.h"
 #include "arch/stm32l4xxx/peripherals/spi.h"
+#include "kern/common.h"
+#include "kern/spi/spi_manager.h"
 #include "test_harness.h"
 
 TEST(spi, smoke)
 {
-  __IO spi_t* spi = &SPI1;
-  spi->s_r = 1;
+  int ec = 1;
+  spi_opts_t opts = DEFAULT_SPI_OPTS;
+  spi_t* spi = reserve_spi(SPI_SELECT_SPI1, &opts, &ec);
+
+  ASSERT_EQ(ec, 0);
+  ASSERT_TRUE(spi != NULL);
+
+  uint32_t reg = 0;
+  regset(reg, spi_bidimode, 0);
+  regset(reg, spi_crcen, 0);
+  regset(reg, spi_crcnext, 0);
+  regset(reg, spi_crcl, 0);
+  regset(reg, spi_rxonly, 0);
+  regset(reg, spi_ssm, 1);
+  regset(reg, spi_ssi, 1);
+  regset(reg, spi_lsbfirst, 1);
+  regset(reg, spi_spe, 1);
+  regset(reg, spi_br, SPI_BAUD_FPCLK_DIV_32);
+  regset(reg, spi_mstr, 1);
+  regset(reg, spi_cpol, 0);
+  regset(reg, spi_cpha, 0);
+
+  ASSERT_EQ(SPI1.c_r1, reg);
+
+  reg = 0;
+  regset(reg, spi_ldma_tx, 0);
+  regset(reg, spi_ldma_rx, 0);
+  regset(reg, spi_frxth, 0);
+  regset(reg, spi_ds, SPI_DATA_SIZE_8_BITS);
+  regset(reg, spi_txeie, 0);
+  regset(reg, spi_rxneie, 0);
+  regset(reg, spi_errie, 0);
+  regset(reg, spi_frf, 0);
+  regset(reg, spi_nssp, 0);
+  regset(reg, spi_ssoe, 0);
+  regset(reg, spi_txdmaen, 0);
+  regset(reg, spi_rxdmaen, 0);
+  SPI1.c_r2 = reg;
+
+  ASSERT_EQ(SPI1.c_r2, reg);
+
+  ASSERT_TRUE(regget(RCC.apb2en_r, rcc_spi1en));
+
+  return 0;
+}
+
+TEST(spi, double_reserve)
+{
+  int ec = 10;
+
+  spi_opts_t opts = DEFAULT_SPI_OPTS;
+  reserve_spi(SPI_SELECT_SPI1, &opts, &ec);
+  ASSERT_EQ(ec, 0);
+  spi_t* spi1_2 = reserve_spi(SPI_SELECT_SPI1, &opts, &ec);
+  ASSERT_EQ(spi1_2, NULL);
+  ASSERT_EQ(ec, SPI_ERROR_ALREADY_IN_USE);
 
   return 0;
 }
-- 
cgit