@@ -23,6 +23,7 @@
#include "hw/char/imx_serial.h"
#include "hw/timer/imx_gpt.h"
#include "hw/timer/imx_epit.h"
+#include "hw/i2c/imx_i2c.h"
#include "exec/memory.h"
#define TYPE_FSL_IMX31 "fsl,imx31"
@@ -201,6 +201,7 @@ check-qtest-sparc64-y = tests/endianness-test$(EXESUF)
gcov-files-sparc-y += hw/timer/m48t59.c
gcov-files-sparc64-y += hw/timer/m48t59.c
check-qtest-arm-y = tests/tmp105-test$(EXESUF)
+check-qtest-arm-y = tests/ds1338-test$(EXESUF)
gcov-files-arm-y += hw/misc/tmp105.c
check-qtest-arm-y += tests/virtio-blk-test$(EXESUF)
gcov-files-arm-y += arm-softmmu/hw/block/virtio-blk.c
@@ -354,6 +355,7 @@ libqos-pc-obj-y = $(libqos-obj-y) tests/libqos/pci-pc.o
libqos-pc-obj-y += tests/libqos/malloc-pc.o tests/libqos/libqos-pc.o
libqos-pc-obj-y += tests/libqos/ahci.o
libqos-omap-obj-y = $(libqos-obj-y) tests/libqos/i2c-omap.o
+libqos-imx-obj-y = $(libqos-obj-y) tests/libqos/i2c-imx.o
libqos-usb-obj-y = $(libqos-pc-obj-y) tests/libqos/usb.o
libqos-virtio-obj-y = $(libqos-pc-obj-y) tests/libqos/virtio.o tests/libqos/virtio-pci.o tests/libqos/virtio-mmio.o tests/libqos/malloc-generic.o
@@ -368,6 +370,7 @@ tests/hd-geo-test$(EXESUF): tests/hd-geo-test.o
tests/boot-order-test$(EXESUF): tests/boot-order-test.o $(libqos-obj-y)
tests/bios-tables-test$(EXESUF): tests/bios-tables-test.o $(libqos-obj-y)
tests/tmp105-test$(EXESUF): tests/tmp105-test.o $(libqos-omap-obj-y)
+tests/ds1338-test$(EXESUF): tests/ds1338-test.o $(libqos-imx-obj-y)
tests/i440fx-test$(EXESUF): tests/i440fx-test.o $(libqos-pc-obj-y)
tests/q35-test$(EXESUF): tests/q35-test.o $(libqos-pc-obj-y)
tests/fw_cfg-test$(EXESUF): tests/fw_cfg-test.o $(libqos-pc-obj-y)
new file mode 100644
@@ -0,0 +1,78 @@
+/*
+ * QTest testcase for the DS1338 RTC
+ *
+ * Copyright (c) 2013 Jean-Christophe Dubois
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "libqtest.h"
+#include "libqos/i2c.h"
+
+#include <glib.h>
+
+#define IMX25_I2C_0_BASE 0x43F80000
+
+#define DS1338_ADDR 0x68
+
+static I2CAdapter *i2c;
+static uint8_t addr;
+
+static inline uint8_t bcd2bin(uint8_t x)
+{
+ return ((x) & 0x0f) + ((x) >> 4) * 10;
+}
+
+static void send_and_receive(void)
+{
+ uint8_t cmd[1];
+ uint8_t resp[7];
+ time_t now = time(NULL);
+ struct tm *tm_ptr = gmtime(&now);
+
+ /* reset the index in the RTC memory */
+ cmd[0] = 0;
+ i2c_send(i2c, addr, cmd, 1);
+
+ /* retrieve the date */
+ i2c_recv(i2c, addr, resp, 7);
+
+ /* check retrieved time againt local time */
+ g_assert_cmpuint(bcd2bin(resp[4]), == , tm_ptr->tm_mday);
+ g_assert_cmpuint(bcd2bin(resp[5]), == , 1 + tm_ptr->tm_mon);
+ g_assert_cmpuint(2000 + bcd2bin(resp[6]), == , 1900 + tm_ptr->tm_year);
+}
+
+int main(int argc, char **argv)
+{
+ QTestState *s = NULL;
+ int ret;
+
+ g_test_init(&argc, &argv, NULL);
+
+ s = qtest_start("-display none -machine imx25_pdk");
+ i2c = imx_i2c_create(IMX25_I2C_0_BASE);
+ addr = DS1338_ADDR;
+
+ qtest_add_func("/ds1338/tx-rx", send_and_receive);
+
+ ret = g_test_run();
+
+ if (s) {
+ qtest_quit(s);
+ }
+ g_free(i2c);
+
+ return ret;
+}
new file mode 100644
@@ -0,0 +1,209 @@
+/*
+ * QTest i.MX I2C driver
+ *
+ * Copyright (c) 2013 Jean-Christophe Dubois
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "libqos/i2c.h"
+
+#include <glib.h>
+#include <string.h>
+
+#include "qemu/osdep.h"
+#include "libqtest.h"
+
+#include "hw/i2c/imx_i2c.h"
+
+enum IMXI2CDirection {
+ IMX_I2C_READ,
+ IMX_I2C_WRITE,
+};
+
+typedef struct IMXI2C {
+ I2CAdapter parent;
+
+ uint64_t addr;
+} IMXI2C;
+
+
+static void imx_i2c_set_slave_addr(IMXI2C *s, uint8_t addr,
+ enum IMXI2CDirection direction)
+{
+ writeb(s->addr + I2DR_ADDR, (addr << 1) |
+ (direction == IMX_I2C_READ ? 1 : 0));
+}
+
+static void imx_i2c_send(I2CAdapter *i2c, uint8_t addr,
+ const uint8_t *buf, uint16_t len)
+{
+ IMXI2C *s = (IMXI2C *)i2c;
+ uint8_t data;
+ uint8_t status;
+ uint16_t size = 0;
+
+ if (!len) {
+ return;
+ }
+
+ /* set the bus for write */
+ data = I2CR_IEN |
+ I2CR_IIEN |
+ I2CR_MSTA |
+ I2CR_MTX |
+ I2CR_TXAK;
+
+ writeb(s->addr + I2CR_ADDR, data);
+ status = readb(s->addr + I2SR_ADDR);
+ g_assert((status & I2SR_IBB) != 0);
+
+ /* set the slave address */
+ imx_i2c_set_slave_addr(s, addr, IMX_I2C_WRITE);
+ status = readb(s->addr + I2SR_ADDR);
+ g_assert((status & I2SR_IIF) != 0);
+ g_assert((status & I2SR_RXAK) == 0);
+
+ /* ack the interrupt */
+ writeb(s->addr + I2SR_ADDR, 0);
+ status = readb(s->addr + I2SR_ADDR);
+ g_assert((status & I2SR_IIF) == 0);
+
+ while (size < len) {
+ /* check we are still busy */
+ status = readb(s->addr + I2SR_ADDR);
+ g_assert((status & I2SR_IBB) != 0);
+
+ /* write the data */
+ writeb(s->addr + I2DR_ADDR, buf[size]);
+ status = readb(s->addr + I2SR_ADDR);
+ g_assert((status & I2SR_IIF) != 0);
+ g_assert((status & I2SR_RXAK) == 0);
+
+ /* ack the interrupt */
+ writeb(s->addr + I2SR_ADDR, 0);
+ status = readb(s->addr + I2SR_ADDR);
+ g_assert((status & I2SR_IIF) == 0);
+
+ size++;
+ }
+
+ /* release the bus */
+ data &= ~(I2CR_MSTA | I2CR_MTX);
+ writeb(s->addr + I2CR_ADDR, data);
+ status = readb(s->addr + I2SR_ADDR);
+ g_assert((status & I2SR_IBB) == 0);
+}
+
+static void imx_i2c_recv(I2CAdapter *i2c, uint8_t addr,
+ uint8_t *buf, uint16_t len)
+{
+ IMXI2C *s = (IMXI2C *)i2c;
+ uint8_t data;
+ uint8_t status;
+ uint16_t size = 0;
+
+ if (!len) {
+ return;
+ }
+
+ /* set the bus for write */
+ data = I2CR_IEN |
+ I2CR_IIEN |
+ I2CR_MSTA |
+ I2CR_MTX |
+ I2CR_TXAK;
+
+ writeb(s->addr + I2CR_ADDR, data);
+ status = readb(s->addr + I2SR_ADDR);
+ g_assert((status & I2SR_IBB) != 0);
+
+ /* set the slave address */
+ imx_i2c_set_slave_addr(s, addr, IMX_I2C_READ);
+ status = readb(s->addr + I2SR_ADDR);
+ g_assert((status & I2SR_IIF) != 0);
+ g_assert((status & I2SR_RXAK) == 0);
+
+ /* ack the interrupt */
+ writeb(s->addr + I2SR_ADDR, 0);
+ status = readb(s->addr + I2SR_ADDR);
+ g_assert((status & I2SR_IIF) == 0);
+
+ /* set the bus for read */
+ data &= ~I2CR_MTX;
+ /* if only one byte don't ack */
+ if (len != 1) {
+ data &= ~I2CR_TXAK;
+ }
+ writeb(s->addr + I2CR_ADDR, data);
+ status = readb(s->addr + I2SR_ADDR);
+ g_assert((status & I2SR_IBB) != 0);
+
+ /* dummy read */
+ readb(s->addr + I2DR_ADDR);
+ status = readb(s->addr + I2SR_ADDR);
+ g_assert((status & I2SR_IIF) != 0);
+
+ /* ack the interrupt */
+ writeb(s->addr + I2SR_ADDR, 0);
+ status = readb(s->addr + I2SR_ADDR);
+ g_assert((status & I2SR_IIF) == 0);
+
+ while (size < len) {
+ /* check we are still busy */
+ status = readb(s->addr + I2SR_ADDR);
+ g_assert((status & I2SR_IBB) != 0);
+
+ if (size == (len - 1)) {
+ /* stop the read transaction */
+ data &= ~(I2CR_MSTA | I2CR_MTX);
+ } else {
+ /* ack the data read */
+ data |= I2CR_TXAK;
+ }
+ writeb(s->addr + I2CR_ADDR, data);
+
+ /* read the data */
+ buf[size] = readb(s->addr + I2DR_ADDR);
+
+ if (size != (len - 1)) {
+ status = readb(s->addr + I2SR_ADDR);
+ g_assert((status & I2SR_IIF) != 0);
+
+ /* ack the interrupt */
+ writeb(s->addr + I2SR_ADDR, 0);
+ }
+
+ status = readb(s->addr + I2SR_ADDR);
+ g_assert((status & I2SR_IIF) == 0);
+
+ size++;
+ }
+
+ status = readb(s->addr + I2SR_ADDR);
+ g_assert((status & I2SR_IBB) == 0);
+}
+
+I2CAdapter *imx_i2c_create(uint64_t addr)
+{
+ IMXI2C *s = g_malloc0(sizeof(*s));
+ I2CAdapter *i2c = (I2CAdapter *)s;
+
+ s->addr = addr;
+
+ i2c->send = imx_i2c_send;
+ i2c->recv = imx_i2c_recv;
+
+ return i2c;
+}
@@ -27,4 +27,7 @@ void i2c_recv(I2CAdapter *i2c, uint8_t addr,
/* libi2c-omap.c */
I2CAdapter *omap_i2c_create(uint64_t addr);
+/* libi2c-imx.c */
+I2CAdapter *imx_i2c_create(uint64_t addr);
+
#endif