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[Qemu-devel] [PATCH for-2.0 5/7] tmp105-test: wrap simple building block
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH for-2.0 5/7] tmp105-test: wrap simple building blocks for testing |
Date: |
Mon, 31 Mar 2014 18:26:33 +0200 |
The next patches will add more reads and writes. Add a simple testing
API for this.
Signed-off-by: Paolo Bonzini <address@hidden>
---
tests/tmp105-test.c | 54 +++++++++++++++++++++++++++++++++++------------------
1 file changed, 36 insertions(+), 18 deletions(-)
diff --git a/tests/tmp105-test.c b/tests/tmp105-test.c
index 0834219..20a1894 100644
--- a/tests/tmp105-test.c
+++ b/tests/tmp105-test.c
@@ -20,39 +20,57 @@
static I2CAdapter *i2c;
static uint8_t addr;
-static void send_and_receive(void)
+static uint16_t tmp105_get16(I2CAdapter *i2c, uint8_t addr, uint8_t reg)
{
- uint8_t cmd[3];
uint8_t resp[2];
-
- cmd[0] = TMP105_REG_TEMPERATURE;
- i2c_send(i2c, addr, cmd, 1);
+ i2c_send(i2c, addr, ®, 1);
i2c_recv(i2c, addr, resp, 2);
- g_assert_cmpuint(((uint16_t)resp[0] << 8) | resp[1], ==, 0);
+ return (resp[0] << 8) | resp[1];
+}
+
+static void tmp105_set8(I2CAdapter *i2c, uint8_t addr, uint8_t reg,
+ uint8_t value)
+{
+ uint8_t cmd[2];
+ uint8_t resp[1];
- cmd[0] = TMP105_REG_CONFIG;
- cmd[1] = 0x0; /* matches the reset value */
+ cmd[0] = reg;
+ cmd[1] = value;
i2c_send(i2c, addr, cmd, 2);
i2c_recv(i2c, addr, resp, 1);
g_assert_cmphex(resp[0], ==, cmd[1]);
+}
- cmd[0] = TMP105_REG_T_LOW;
- cmd[1] = 0x12;
- cmd[2] = 0x34;
- i2c_send(i2c, addr, cmd, 3);
- i2c_recv(i2c, addr, resp, 2);
- g_assert_cmphex(resp[0], ==, cmd[1]);
- g_assert_cmphex(resp[1], ==, cmd[2]);
+static void tmp105_set16(I2CAdapter *i2c, uint8_t addr, uint8_t reg,
+ uint16_t value)
+{
+ uint8_t cmd[3];
+ uint8_t resp[2];
- cmd[0] = TMP105_REG_T_HIGH;
- cmd[1] = 0x42;
- cmd[2] = 0x31;
+ cmd[0] = reg;
+ cmd[1] = value >> 8;
+ cmd[2] = value & 255;
i2c_send(i2c, addr, cmd, 3);
i2c_recv(i2c, addr, resp, 2);
g_assert_cmphex(resp[0], ==, cmd[1]);
g_assert_cmphex(resp[1], ==, cmd[2]);
}
+
+static void send_and_receive(void)
+{
+ uint16_t value;
+
+ value = tmp105_get16(i2c, addr, TMP105_REG_TEMPERATURE);
+ g_assert_cmpuint(value, ==, 0);
+
+ /* reset */
+ tmp105_set8(i2c, addr, TMP105_REG_CONFIG, 0);
+
+ tmp105_set16(i2c, addr, TMP105_REG_T_LOW, 0x1234);
+ tmp105_set16(i2c, addr, TMP105_REG_T_HIGH, 0x4231);
+}
+
int main(int argc, char **argv)
{
QTestState *s = NULL;
--
1.9.0
- [Qemu-devel] [PATCH for-2.0 0/7] SMBus and tmp105 fixes, Paolo Bonzini, 2014/03/31
- [Qemu-devel] [PATCH for-2.0 1/7] smbus: allow returning an error from reads, Paolo Bonzini, 2014/03/31
- [Qemu-devel] [PATCH for-2.0 2/7] smbus: return -1 if nothing found at the given address, Paolo Bonzini, 2014/03/31
- [Qemu-devel] [PATCH for-2.0 3/7] pm_smbus: correctly report unclaimed cycles, Paolo Bonzini, 2014/03/31
- [Qemu-devel] [PATCH for-2.0 4/7] tmp105: read temperature in milli-celsius, Paolo Bonzini, 2014/03/31
- [Qemu-devel] [PATCH for-2.0 5/7] tmp105-test: wrap simple building blocks for testing,
Paolo Bonzini <=
- [Qemu-devel] [PATCH for-2.0 6/7] tmp105-test: add a second sensor and test that one, Paolo Bonzini, 2014/03/31
- [Qemu-devel] [PATCH for-2.0 7/7] tmp105-test: test QOM property and precision, Paolo Bonzini, 2014/03/31
- Re: [Qemu-devel] [PATCH for-2.0 0/7] SMBus and tmp105 fixes, Andreas Färber, 2014/03/31