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libqos: i2c: move address into QI2CDevice 

This removes the hardcoded I2C address from the tests.  The address
is passed via QOSGraphEdgeOptions to i2c_device_create and stored
in the QI2CDevice.

The i2c_send and i2c_recv functions, along with their wrappers,
therefore, can be changed to take a QI2CDevice rather than an
adapter/address pair.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2019-03-18 15:06:50 +01:00
parent 8130dbcbcd
commit 06599472ec
5 changed files with 82 additions and 75 deletions
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4
tests/ds1338-test.c
View File

@ -31,13 +31,12 @@ static inline uint8_t bcd2bin(uint8_t x)
static void send_and_receive(void *obj, void *data, QGuestAllocator *alloc) static void send_and_receive(void *obj, void *data, QGuestAllocator *alloc)
{ {
QI2CDevice *i2cdev = (QI2CDevice *)obj; QI2CDevice *i2cdev = (QI2CDevice *)obj;
I2CAdapter *i2c = i2cdev->bus;
uint8_t resp[7]; uint8_t resp[7];
time_t now = time(NULL); time_t now = time(NULL);
struct tm *tm_ptr = gmtime(&now); struct tm *tm_ptr = gmtime(&now);
i2c_read_block(i2c, DS1338_ADDR, 0, resp, sizeof(resp)); i2c_read_block(i2cdev, 0, resp, sizeof(resp));
/* check retrieved time againt local time */ /* check retrieved time againt local time */
g_assert_cmpuint(bcd2bin(resp[4]), == , tm_ptr->tm_mday); g_assert_cmpuint(bcd2bin(resp[4]), == , tm_ptr->tm_mday);
@ -50,6 +49,7 @@ static void ds1338_register_nodes(void)
QOSGraphEdgeOptions opts = { QOSGraphEdgeOptions opts = {
.extra_device_opts = "address=0x68" .extra_device_opts = "address=0x68"
}; };
add_qi2c_address(&opts, &(QI2CAddress) { DS1338_ADDR });
qos_node_create_driver("ds1338", i2c_device_create); qos_node_create_driver("ds1338", i2c_device_create);
qos_node_consumes("ds1338", "i2c-bus", &opts); qos_node_consumes("ds1338", "i2c-bus", &opts);

51
tests/libqos/i2c.c
View File

@ -10,63 +10,59 @@
#include "libqos/i2c.h" #include "libqos/i2c.h"
#include "libqtest.h" #include "libqtest.h"
void i2c_send(I2CAdapter *i2c, uint8_t addr, void i2c_send(QI2CDevice *i2cdev, const uint8_t *buf, uint16_t len)
const uint8_t *buf, uint16_t len)
{ {
i2c->send(i2c, addr, buf, len); i2cdev->bus->send(i2cdev->bus, i2cdev->addr, buf, len);
} }
void i2c_recv(I2CAdapter *i2c, uint8_t addr, void i2c_recv(QI2CDevice *i2cdev, uint8_t *buf, uint16_t len)
uint8_t *buf, uint16_t len)
{ {
i2c->recv(i2c, addr, buf, len); i2cdev->bus->recv(i2cdev->bus, i2cdev->addr, buf, len);
} }
void i2c_read_block(I2CAdapter *i2c, uint8_t addr, uint8_t reg, void i2c_read_block(QI2CDevice *i2cdev, uint8_t reg,
uint8_t *buf, uint16_t len) uint8_t *buf, uint16_t len)
{ {
i2c_send(i2c, addr, &reg, 1); i2c_send(i2cdev, &reg, 1);
i2c_recv(i2c, addr, buf, len); i2c_recv(i2cdev, buf, len);
} }
void i2c_write_block(I2CAdapter *i2c, uint8_t addr, uint8_t reg, void i2c_write_block(QI2CDevice *i2cdev, uint8_t reg,
const uint8_t *buf, uint16_t len) const uint8_t *buf, uint16_t len)
{ {
uint8_t *cmd = g_malloc(len + 1); uint8_t *cmd = g_malloc(len + 1);
cmd[0] = reg; cmd[0] = reg;
memcpy(&cmd[1], buf, len); memcpy(&cmd[1], buf, len);
i2c_send(i2c, addr, cmd, len + 1); i2c_send(i2cdev, cmd, len + 1);
g_free(cmd); g_free(cmd);
} }
uint8_t i2c_get8(I2CAdapter *i2c, uint8_t addr, uint8_t reg) uint8_t i2c_get8(QI2CDevice *i2cdev, uint8_t reg)
{ {
uint8_t resp[1]; uint8_t resp[1];
i2c_read_block(i2c, addr, reg, resp, sizeof(resp)); i2c_read_block(i2cdev, reg, resp, sizeof(resp));
return resp[0]; return resp[0];
} }
uint16_t i2c_get16(I2CAdapter *i2c, uint8_t addr, uint8_t reg) uint16_t i2c_get16(QI2CDevice *i2cdev, uint8_t reg)
{ {
uint8_t resp[2]; uint8_t resp[2];
i2c_read_block(i2c, addr, reg, resp, sizeof(resp)); i2c_read_block(i2cdev, reg, resp, sizeof(resp));
return (resp[0] << 8) | resp[1]; return (resp[0] << 8) | resp[1];
} }
void i2c_set8(I2CAdapter *i2c, uint8_t addr, uint8_t reg, void i2c_set8(QI2CDevice *i2cdev, uint8_t reg, uint8_t value)
uint8_t value)
{ {
i2c_write_block(i2c, addr, reg, &value, 1); i2c_write_block(i2cdev, reg, &value, 1);
} }
void i2c_set16(I2CAdapter *i2c, uint8_t addr, uint8_t reg, void i2c_set16(QI2CDevice *i2cdev, uint8_t reg, uint16_t value)
uint16_t value)
{ {
uint8_t data[2]; uint8_t data[2];
data[0] = value >> 8; data[0] = value >> 8;
data[1] = value & 255; data[1] = value & 255;
i2c_write_block(i2c, addr, reg, data, sizeof(data)); i2c_write_block(i2cdev, reg, data, sizeof(data));
} }
void *i2c_device_create(void *i2c_bus, QGuestAllocator *alloc, void *addr) void *i2c_device_create(void *i2c_bus, QGuestAllocator *alloc, void *addr)
@ -74,5 +70,16 @@ void *i2c_device_create(void *i2c_bus, QGuestAllocator *alloc, void *addr)
QI2CDevice *i2cdev = g_new0(QI2CDevice, 1); QI2CDevice *i2cdev = g_new0(QI2CDevice, 1);
i2cdev->bus = i2c_bus; i2cdev->bus = i2c_bus;
if (addr) {
i2cdev->addr = ((QI2CAddress *)addr)->addr;
}
return &i2cdev->obj; return &i2cdev->obj;
} }
void add_qi2c_address(QOSGraphEdgeOptions *opts, QI2CAddress *addr)
{
g_assert(addr);
opts->arg = addr;
opts->size_arg = sizeof(QI2CAddress);
}

27
tests/libqos/i2c.h
View File

@ -22,6 +22,11 @@ struct I2CAdapter {
QTestState *qts; QTestState *qts;
}; };
typedef struct QI2CAddress QI2CAddress;
struct QI2CAddress {
uint8_t addr;
};
typedef struct QI2CDevice QI2CDevice; typedef struct QI2CDevice QI2CDevice;
struct QI2CDevice { struct QI2CDevice {
/* /*
@ -36,25 +41,23 @@ struct QI2CDevice {
*/ */
QOSGraphObject obj; QOSGraphObject obj;
I2CAdapter *bus; I2CAdapter *bus;
uint8_t addr;
}; };
void *i2c_device_create(void *i2c_bus, QGuestAllocator *alloc, void *addr); void *i2c_device_create(void *i2c_bus, QGuestAllocator *alloc, void *addr);
void add_qi2c_address(QOSGraphEdgeOptions *opts, QI2CAddress *addr);
void i2c_send(I2CAdapter *i2c, uint8_t addr, void i2c_send(QI2CDevice *dev, const uint8_t *buf, uint16_t len);
const uint8_t *buf, uint16_t len); void i2c_recv(QI2CDevice *dev, uint8_t *buf, uint16_t len);
void i2c_recv(I2CAdapter *i2c, uint8_t addr,
uint8_t *buf, uint16_t len);
void i2c_read_block(I2CAdapter *i2c, uint8_t addr, uint8_t reg, void i2c_read_block(QI2CDevice *dev, uint8_t reg,
uint8_t *buf, uint16_t len); uint8_t *buf, uint16_t len);
void i2c_write_block(I2CAdapter *i2c, uint8_t addr, uint8_t reg, void i2c_write_block(QI2CDevice *dev, uint8_t reg,
const uint8_t *buf, uint16_t len); const uint8_t *buf, uint16_t len);
uint8_t i2c_get8(I2CAdapter *i2c, uint8_t addr, uint8_t reg); uint8_t i2c_get8(QI2CDevice *dev, uint8_t reg);
uint16_t i2c_get16(I2CAdapter *i2c, uint8_t addr, uint8_t reg); uint16_t i2c_get16(QI2CDevice *dev, uint8_t reg);
void i2c_set8(I2CAdapter *i2c, uint8_t addr, uint8_t reg, void i2c_set8(QI2CDevice *dev, uint8_t reg, uint8_t value);
uint8_t value); void i2c_set16(QI2CDevice *dev, uint8_t reg, uint16_t value);
void i2c_set16(I2CAdapter *i2c, uint8_t addr, uint8_t reg,
uint16_t value);
/* i2c-omap.c */ /* i2c-omap.c */
typedef struct OMAPI2C { typedef struct OMAPI2C {

31
tests/pca9552-test.c
View File

@ -19,65 +19,61 @@
static void pca9552_init(QI2CDevice *i2cdev) static void pca9552_init(QI2CDevice *i2cdev)
{ {
I2CAdapter *i2c = i2cdev->bus;
/* Switch on LEDs 0 and 12 */ /* Switch on LEDs 0 and 12 */
i2c_set8(i2c, PCA9552_TEST_ADDR, PCA9552_LS0, 0x54); i2c_set8(i2cdev, PCA9552_LS0, 0x54);
i2c_set8(i2c, PCA9552_TEST_ADDR, PCA9552_LS3, 0x54); i2c_set8(i2cdev, PCA9552_LS3, 0x54);
} }
static void receive_autoinc(void *obj, void *data, QGuestAllocator *alloc) static void receive_autoinc(void *obj, void *data, QGuestAllocator *alloc)
{ {
QI2CDevice *i2cdev = (QI2CDevice *)obj; QI2CDevice *i2cdev = (QI2CDevice *)obj;
I2CAdapter *i2c = i2cdev->bus;
uint8_t resp; uint8_t resp;
uint8_t reg = PCA9552_LS0 | PCA9552_AUTOINC; uint8_t reg = PCA9552_LS0 | PCA9552_AUTOINC;
pca9552_init(i2cdev); pca9552_init(i2cdev);
i2c_send(i2c, PCA9552_TEST_ADDR, &reg, 1); i2c_send(i2cdev, &reg, 1);
/* PCA9552_LS0 */ /* PCA9552_LS0 */
i2c_recv(i2c, PCA9552_TEST_ADDR, &resp, 1); i2c_recv(i2cdev, &resp, 1);
g_assert_cmphex(resp, ==, 0x54); g_assert_cmphex(resp, ==, 0x54);
/* PCA9552_LS1 */ /* PCA9552_LS1 */
i2c_recv(i2c, PCA9552_TEST_ADDR, &resp, 1); i2c_recv(i2cdev, &resp, 1);
g_assert_cmphex(resp, ==, 0x55); g_assert_cmphex(resp, ==, 0x55);
/* PCA9552_LS2 */ /* PCA9552_LS2 */
i2c_recv(i2c, PCA9552_TEST_ADDR, &resp, 1); i2c_recv(i2cdev, &resp, 1);
g_assert_cmphex(resp, ==, 0x55); g_assert_cmphex(resp, ==, 0x55);
/* PCA9552_LS3 */ /* PCA9552_LS3 */
i2c_recv(i2c, PCA9552_TEST_ADDR, &resp, 1); i2c_recv(i2cdev, &resp, 1);
g_assert_cmphex(resp, ==, 0x54); g_assert_cmphex(resp, ==, 0x54);
} }
static void send_and_receive(void *obj, void *data, QGuestAllocator *alloc) static void send_and_receive(void *obj, void *data, QGuestAllocator *alloc)
{ {
QI2CDevice *i2cdev = (QI2CDevice *)obj; QI2CDevice *i2cdev = (QI2CDevice *)obj;
I2CAdapter *i2c = i2cdev->bus;
uint8_t value; uint8_t value;
value = i2c_get8(i2c, PCA9552_TEST_ADDR, PCA9552_LS0); value = i2c_get8(i2cdev, PCA9552_LS0);
g_assert_cmphex(value, ==, 0x55); g_assert_cmphex(value, ==, 0x55);
value = i2c_get8(i2c, PCA9552_TEST_ADDR, PCA9552_INPUT0); value = i2c_get8(i2cdev, PCA9552_INPUT0);
g_assert_cmphex(value, ==, 0x0); g_assert_cmphex(value, ==, 0x0);
pca9552_init(i2cdev); pca9552_init(i2cdev);
value = i2c_get8(i2c, PCA9552_TEST_ADDR, PCA9552_LS0); value = i2c_get8(i2cdev, PCA9552_LS0);
g_assert_cmphex(value, ==, 0x54); g_assert_cmphex(value, ==, 0x54);
value = i2c_get8(i2c, PCA9552_TEST_ADDR, PCA9552_INPUT0); value = i2c_get8(i2cdev, PCA9552_INPUT0);
g_assert_cmphex(value, ==, 0x01); g_assert_cmphex(value, ==, 0x01);
value = i2c_get8(i2c, PCA9552_TEST_ADDR, PCA9552_LS3); value = i2c_get8(i2cdev, PCA9552_LS3);
g_assert_cmphex(value, ==, 0x54); g_assert_cmphex(value, ==, 0x54);
value = i2c_get8(i2c, PCA9552_TEST_ADDR, PCA9552_INPUT1); value = i2c_get8(i2cdev, PCA9552_INPUT1);
g_assert_cmphex(value, ==, 0x10); g_assert_cmphex(value, ==, 0x10);
} }
@ -86,6 +82,7 @@ static void pca9552_register_nodes(void)
QOSGraphEdgeOptions opts = { QOSGraphEdgeOptions opts = {
.extra_device_opts = "address=0x60" .extra_device_opts = "address=0x60"
}; };
add_qi2c_address(&opts, &(QI2CAddress) { 0x60 });
qos_node_create_driver("pca9552", i2c_device_create); qos_node_create_driver("pca9552", i2c_device_create);
qos_node_consumes("pca9552", "i2c-bus", &opts); qos_node_consumes("pca9552", "i2c-bus", &opts);

44
tests/tmp105-test.c
View File

@ -46,19 +46,18 @@ static void send_and_receive(void *obj, void *data, QGuestAllocator *alloc)
{ {
uint16_t value; uint16_t value;
QI2CDevice *i2cdev = (QI2CDevice *)obj; QI2CDevice *i2cdev = (QI2CDevice *)obj;
I2CAdapter *i2c = i2cdev->bus;
value = qmp_tmp105_get_temperature(TMP105_TEST_ID); value = qmp_tmp105_get_temperature(TMP105_TEST_ID);
g_assert_cmpuint(value, ==, 0); g_assert_cmpuint(value, ==, 0);
value = i2c_get16(i2c, TMP105_TEST_ADDR, TMP105_REG_TEMPERATURE); value = i2c_get16(i2cdev, TMP105_REG_TEMPERATURE);
g_assert_cmphex(value, ==, 0); g_assert_cmphex(value, ==, 0);
qmp_tmp105_set_temperature(TMP105_TEST_ID, 20000); qmp_tmp105_set_temperature(TMP105_TEST_ID, 20000);
value = qmp_tmp105_get_temperature(TMP105_TEST_ID); value = qmp_tmp105_get_temperature(TMP105_TEST_ID);
g_assert_cmpuint(value, ==, 20000); g_assert_cmpuint(value, ==, 20000);
value = i2c_get16(i2c, TMP105_TEST_ADDR, TMP105_REG_TEMPERATURE); value = i2c_get16(i2cdev, TMP105_REG_TEMPERATURE);
g_assert_cmphex(value, ==, 0x1400); g_assert_cmphex(value, ==, 0x1400);
qmp_tmp105_set_temperature(TMP105_TEST_ID, 20938); /* 20 + 15/16 */ qmp_tmp105_set_temperature(TMP105_TEST_ID, 20938); /* 20 + 15/16 */
@ -67,27 +66,27 @@ static void send_and_receive(void *obj, void *data, QGuestAllocator *alloc)
g_assert_cmpuint(value, <, 20938 + TMP105_PRECISION/2); g_assert_cmpuint(value, <, 20938 + TMP105_PRECISION/2);
/* Set config */ /* Set config */
i2c_set8(i2c, TMP105_TEST_ADDR, TMP105_REG_CONFIG, 0x60); i2c_set8(i2cdev, TMP105_REG_CONFIG, 0x60);
value = i2c_get8(i2c, TMP105_TEST_ADDR, TMP105_REG_CONFIG); value = i2c_get8(i2cdev, TMP105_REG_CONFIG);
g_assert_cmphex(value, ==, 0x60); g_assert_cmphex(value, ==, 0x60);
value = i2c_get16(i2c, TMP105_TEST_ADDR, TMP105_REG_TEMPERATURE); value = i2c_get16(i2cdev, TMP105_REG_TEMPERATURE);
g_assert_cmphex(value, ==, 0x14f0); g_assert_cmphex(value, ==, 0x14f0);
/* Set precision to 9, 10, 11 bits. */ /* Set precision to 9, 10, 11 bits. */
i2c_set8(i2c, TMP105_TEST_ADDR, TMP105_REG_CONFIG, 0x00); i2c_set8(i2cdev, TMP105_REG_CONFIG, 0x00);
g_assert_cmphex(i2c_get8(i2c, TMP105_TEST_ADDR, TMP105_REG_CONFIG), ==, 0x00); g_assert_cmphex(i2c_get8(i2cdev, TMP105_REG_CONFIG), ==, 0x00);
value = i2c_get16(i2c, TMP105_TEST_ADDR, TMP105_REG_TEMPERATURE); value = i2c_get16(i2cdev, TMP105_REG_TEMPERATURE);
g_assert_cmphex(value, ==, 0x1480); g_assert_cmphex(value, ==, 0x1480);
i2c_set8(i2c, TMP105_TEST_ADDR, TMP105_REG_CONFIG, 0x20); i2c_set8(i2cdev, TMP105_REG_CONFIG, 0x20);
g_assert_cmphex(i2c_get8(i2c, TMP105_TEST_ADDR, TMP105_REG_CONFIG), ==, 0x20); g_assert_cmphex(i2c_get8(i2cdev, TMP105_REG_CONFIG), ==, 0x20);
value = i2c_get16(i2c, TMP105_TEST_ADDR, TMP105_REG_TEMPERATURE); value = i2c_get16(i2cdev, TMP105_REG_TEMPERATURE);
g_assert_cmphex(value, ==, 0x14c0); g_assert_cmphex(value, ==, 0x14c0);
i2c_set8(i2c, TMP105_TEST_ADDR, TMP105_REG_CONFIG, 0x40); i2c_set8(i2cdev, TMP105_REG_CONFIG, 0x40);
g_assert_cmphex(i2c_get8(i2c, TMP105_TEST_ADDR, TMP105_REG_CONFIG), ==, 0x40); g_assert_cmphex(i2c_get8(i2cdev, TMP105_REG_CONFIG), ==, 0x40);
value = i2c_get16(i2c, TMP105_TEST_ADDR, TMP105_REG_TEMPERATURE); value = i2c_get16(i2cdev, TMP105_REG_TEMPERATURE);
g_assert_cmphex(value, ==, 0x14e0); g_assert_cmphex(value, ==, 0x14e0);
/* stored precision remains the same */ /* stored precision remains the same */
@ -95,15 +94,15 @@ static void send_and_receive(void *obj, void *data, QGuestAllocator *alloc)
g_assert_cmpuint(value, >=, 20938 - TMP105_PRECISION/2); g_assert_cmpuint(value, >=, 20938 - TMP105_PRECISION/2);
g_assert_cmpuint(value, <, 20938 + TMP105_PRECISION/2); g_assert_cmpuint(value, <, 20938 + TMP105_PRECISION/2);
i2c_set8(i2c, TMP105_TEST_ADDR, TMP105_REG_CONFIG, 0x60); i2c_set8(i2cdev, TMP105_REG_CONFIG, 0x60);
g_assert_cmphex(i2c_get8(i2c, TMP105_TEST_ADDR, TMP105_REG_CONFIG), ==, 0x60); g_assert_cmphex(i2c_get8(i2cdev, TMP105_REG_CONFIG), ==, 0x60);
value = i2c_get16(i2c, TMP105_TEST_ADDR, TMP105_REG_TEMPERATURE); value = i2c_get16(i2cdev, TMP105_REG_TEMPERATURE);
g_assert_cmphex(value, ==, 0x14f0); g_assert_cmphex(value, ==, 0x14f0);
i2c_set16(i2c, TMP105_TEST_ADDR, TMP105_REG_T_LOW, 0x1234); i2c_set16(i2cdev, TMP105_REG_T_LOW, 0x1234);
g_assert_cmphex(i2c_get16(i2c, TMP105_TEST_ADDR, TMP105_REG_T_LOW), ==, 0x1234); g_assert_cmphex(i2c_get16(i2cdev, TMP105_REG_T_LOW), ==, 0x1234);
i2c_set16(i2c, TMP105_TEST_ADDR, TMP105_REG_T_HIGH, 0x4231); i2c_set16(i2cdev, TMP105_REG_T_HIGH, 0x4231);
g_assert_cmphex(i2c_get16(i2c, TMP105_TEST_ADDR, TMP105_REG_T_HIGH), ==, 0x4231); g_assert_cmphex(i2c_get16(i2cdev, TMP105_REG_T_HIGH), ==, 0x4231);
} }
static void tmp105_register_nodes(void) static void tmp105_register_nodes(void)
@ -111,6 +110,7 @@ static void tmp105_register_nodes(void)
QOSGraphEdgeOptions opts = { QOSGraphEdgeOptions opts = {
.extra_device_opts = "id=" TMP105_TEST_ID ",address=0x49" .extra_device_opts = "id=" TMP105_TEST_ID ",address=0x49"
}; };
add_qi2c_address(&opts, &(QI2CAddress) { 0x49 });
qos_node_create_driver("tmp105", i2c_device_create); qos_node_create_driver("tmp105", i2c_device_create);
qos_node_consumes("tmp105", "i2c-bus", &opts); qos_node_consumes("tmp105", "i2c-bus", &opts);