Andreas Färber | 6e99890 | 2013-01-16 01:57:57 +0100 | [diff] [blame] | 1 | /* |
| 2 | * QTest testcase for the TMP105 temperature sensor |
| 3 | * |
| 4 | * Copyright (c) 2012 Andreas Färber |
| 5 | * |
| 6 | * This work is licensed under the terms of the GNU GPL, version 2 or later. |
| 7 | * See the COPYING file in the top-level directory. |
| 8 | */ |
Stefan Hajnoczi | 91f32b0 | 2014-02-08 11:41:07 +0100 | [diff] [blame^] | 9 | |
| 10 | #include <glib.h> |
| 11 | |
Andreas Färber | 6e99890 | 2013-01-16 01:57:57 +0100 | [diff] [blame] | 12 | #include "libqtest.h" |
Andreas Färber | cc9936a | 2013-05-02 15:56:26 +0200 | [diff] [blame] | 13 | #include "libqos/i2c.h" |
Paolo Bonzini | 0d09e41 | 2013-02-05 17:06:20 +0100 | [diff] [blame] | 14 | #include "hw/misc/tmp105_regs.h" |
Andreas Färber | 6e99890 | 2013-01-16 01:57:57 +0100 | [diff] [blame] | 15 | |
Andreas Färber | 6e99890 | 2013-01-16 01:57:57 +0100 | [diff] [blame] | 16 | #define OMAP2_I2C_1_BASE 0x48070000 |
| 17 | |
| 18 | #define N8X0_ADDR 0x48 |
| 19 | |
| 20 | static I2CAdapter *i2c; |
| 21 | static uint8_t addr; |
| 22 | |
| 23 | static void send_and_receive(void) |
| 24 | { |
| 25 | uint8_t cmd[3]; |
| 26 | uint8_t resp[2]; |
| 27 | |
| 28 | cmd[0] = TMP105_REG_TEMPERATURE; |
| 29 | i2c_send(i2c, addr, cmd, 1); |
| 30 | i2c_recv(i2c, addr, resp, 2); |
| 31 | g_assert_cmpuint(((uint16_t)resp[0] << 8) | resp[1], ==, 0); |
| 32 | |
| 33 | cmd[0] = TMP105_REG_CONFIG; |
| 34 | cmd[1] = 0x0; /* matches the reset value */ |
| 35 | i2c_send(i2c, addr, cmd, 2); |
| 36 | i2c_recv(i2c, addr, resp, 1); |
| 37 | g_assert_cmphex(resp[0], ==, cmd[1]); |
| 38 | |
| 39 | cmd[0] = TMP105_REG_T_LOW; |
| 40 | cmd[1] = 0x12; |
| 41 | cmd[2] = 0x34; |
| 42 | i2c_send(i2c, addr, cmd, 3); |
| 43 | i2c_recv(i2c, addr, resp, 2); |
| 44 | g_assert_cmphex(resp[0], ==, cmd[1]); |
| 45 | g_assert_cmphex(resp[1], ==, cmd[2]); |
| 46 | |
| 47 | cmd[0] = TMP105_REG_T_HIGH; |
| 48 | cmd[1] = 0x42; |
| 49 | cmd[2] = 0x31; |
| 50 | i2c_send(i2c, addr, cmd, 3); |
| 51 | i2c_recv(i2c, addr, resp, 2); |
| 52 | g_assert_cmphex(resp[0], ==, cmd[1]); |
| 53 | g_assert_cmphex(resp[1], ==, cmd[2]); |
| 54 | } |
| 55 | |
| 56 | int main(int argc, char **argv) |
| 57 | { |
| 58 | QTestState *s = NULL; |
| 59 | int ret; |
| 60 | |
| 61 | g_test_init(&argc, &argv, NULL); |
| 62 | |
Andreas Färber | 2ad645d | 2013-11-18 17:36:34 +0100 | [diff] [blame] | 63 | s = qtest_start("-machine n800"); |
Andreas Färber | 6e99890 | 2013-01-16 01:57:57 +0100 | [diff] [blame] | 64 | i2c = omap_i2c_create(OMAP2_I2C_1_BASE); |
| 65 | addr = N8X0_ADDR; |
| 66 | |
| 67 | qtest_add_func("/tmp105/tx-rx", send_and_receive); |
| 68 | |
| 69 | ret = g_test_run(); |
| 70 | |
| 71 | if (s) { |
| 72 | qtest_quit(s); |
| 73 | } |
| 74 | g_free(i2c); |
| 75 | |
| 76 | return ret; |
| 77 | } |