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Diffstat (limited to 'tests/libqos/i2c-omap.c')
| -rw-r--r-- | tests/libqos/i2c-omap.c | 196 |
1 files changed, 0 insertions, 196 deletions
diff --git a/tests/libqos/i2c-omap.c b/tests/libqos/i2c-omap.c deleted file mode 100644 index 9ae8214fa8..0000000000 --- a/tests/libqos/i2c-omap.c +++ /dev/null @@ -1,196 +0,0 @@ -/* - * QTest I2C driver - * - * Copyright (c) 2012 Andreas Färber - * - * This work is licensed under the terms of the GNU GPL, version 2 or later. - * See the COPYING file in the top-level directory. - */ -#include "qemu/osdep.h" -#include "libqos/i2c.h" - - -#include "qemu/bswap.h" -#include "libqtest.h" - -enum OMAPI2CRegisters { - OMAP_I2C_REV = 0x00, - OMAP_I2C_STAT = 0x08, - OMAP_I2C_CNT = 0x18, - OMAP_I2C_DATA = 0x1c, - OMAP_I2C_CON = 0x24, - OMAP_I2C_SA = 0x2c, -}; - -enum OMAPI2CSTATBits { - OMAP_I2C_STAT_NACK = 1 << 1, - OMAP_I2C_STAT_ARDY = 1 << 2, - OMAP_I2C_STAT_RRDY = 1 << 3, - OMAP_I2C_STAT_XRDY = 1 << 4, - OMAP_I2C_STAT_ROVR = 1 << 11, - OMAP_I2C_STAT_SBD = 1 << 15, -}; - -enum OMAPI2CCONBits { - OMAP_I2C_CON_STT = 1 << 0, - OMAP_I2C_CON_STP = 1 << 1, - OMAP_I2C_CON_TRX = 1 << 9, - OMAP_I2C_CON_MST = 1 << 10, - OMAP_I2C_CON_BE = 1 << 14, - OMAP_I2C_CON_I2C_EN = 1 << 15, -}; - - -static void omap_i2c_set_slave_addr(OMAPI2C *s, uint8_t addr) -{ - uint16_t data = addr; - - qtest_writew(s->parent.qts, s->addr + OMAP_I2C_SA, data); - data = qtest_readw(s->parent.qts, s->addr + OMAP_I2C_SA); - g_assert_cmphex(data, ==, addr); -} - -static void omap_i2c_send(I2CAdapter *i2c, uint8_t addr, - const uint8_t *buf, uint16_t len) -{ - OMAPI2C *s = container_of(i2c, OMAPI2C, parent); - uint16_t data; - - omap_i2c_set_slave_addr(s, addr); - - data = len; - qtest_writew(i2c->qts, s->addr + OMAP_I2C_CNT, data); - - data = OMAP_I2C_CON_I2C_EN | - OMAP_I2C_CON_TRX | - OMAP_I2C_CON_MST | - OMAP_I2C_CON_STT | - OMAP_I2C_CON_STP; - qtest_writew(i2c->qts, s->addr + OMAP_I2C_CON, data); - data = qtest_readw(i2c->qts, s->addr + OMAP_I2C_CON); - g_assert((data & OMAP_I2C_CON_STP) != 0); - - data = qtest_readw(i2c->qts, s->addr + OMAP_I2C_STAT); - g_assert((data & OMAP_I2C_STAT_NACK) == 0); - - while (len > 1) { - data = qtest_readw(i2c->qts, s->addr + OMAP_I2C_STAT); - g_assert((data & OMAP_I2C_STAT_XRDY) != 0); - - data = buf[0] | ((uint16_t)buf[1] << 8); - qtest_writew(i2c->qts, s->addr + OMAP_I2C_DATA, data); - buf = (uint8_t *)buf + 2; - len -= 2; - } - if (len == 1) { - data = qtest_readw(i2c->qts, s->addr + OMAP_I2C_STAT); - g_assert((data & OMAP_I2C_STAT_XRDY) != 0); - - data = buf[0]; - qtest_writew(i2c->qts, s->addr + OMAP_I2C_DATA, data); - } - - data = qtest_readw(i2c->qts, s->addr + OMAP_I2C_CON); - g_assert((data & OMAP_I2C_CON_STP) == 0); -} - -static void omap_i2c_recv(I2CAdapter *i2c, uint8_t addr, - uint8_t *buf, uint16_t len) -{ - OMAPI2C *s = container_of(i2c, OMAPI2C, parent); - uint16_t data, stat; - uint16_t orig_len = len; - - omap_i2c_set_slave_addr(s, addr); - - data = len; - qtest_writew(i2c->qts, s->addr + OMAP_I2C_CNT, data); - - data = OMAP_I2C_CON_I2C_EN | - OMAP_I2C_CON_MST | - OMAP_I2C_CON_STT | - OMAP_I2C_CON_STP; - qtest_writew(i2c->qts, s->addr + OMAP_I2C_CON, data); - - data = qtest_readw(i2c->qts, s->addr + OMAP_I2C_STAT); - g_assert((data & OMAP_I2C_STAT_NACK) == 0); - - while (len > 0) { - data = qtest_readw(i2c->qts, s->addr + OMAP_I2C_CON); - if (len <= 4) { - g_assert((data & OMAP_I2C_CON_STP) == 0); - - data = qtest_readw(i2c->qts, s->addr + OMAP_I2C_CNT); - g_assert_cmpuint(data, ==, orig_len); - } else { - g_assert((data & OMAP_I2C_CON_STP) != 0); - - data = qtest_readw(i2c->qts, s->addr + OMAP_I2C_CNT); - g_assert_cmpuint(data, ==, len - 4); - } - - data = qtest_readw(i2c->qts, s->addr + OMAP_I2C_STAT); - g_assert((data & OMAP_I2C_STAT_RRDY) != 0); - g_assert((data & OMAP_I2C_STAT_ROVR) == 0); - - data = qtest_readw(i2c->qts, s->addr + OMAP_I2C_DATA); - - stat = qtest_readw(i2c->qts, s->addr + OMAP_I2C_STAT); - - if (unlikely(len == 1)) { - g_assert((stat & OMAP_I2C_STAT_SBD) != 0); - - buf[0] = data & 0xff; - buf++; - len--; - } else { - buf[0] = data & 0xff; - buf[1] = data >> 8; - buf += 2; - len -= 2; - } - } - - data = qtest_readw(i2c->qts, s->addr + OMAP_I2C_CON); - g_assert((data & OMAP_I2C_CON_STP) == 0); -} - -static void *omap_i2c_get_driver(void *obj, const char *interface) -{ - OMAPI2C *s = obj; - if (!g_strcmp0(interface, "i2c-bus")) { - return &s->parent; - } - fprintf(stderr, "%s not present in omap_i2c\n", interface); - g_assert_not_reached(); -} - -static void omap_i2c_start_hw(QOSGraphObject *object) -{ - OMAPI2C *s = (OMAPI2C *) object; - uint16_t data; - - /* verify the mmio address by looking for a known signature */ - data = qtest_readw(s->parent.qts, s->addr + OMAP_I2C_REV); - g_assert_cmphex(data, ==, 0x34); -} - -void omap_i2c_init(OMAPI2C *s, QTestState *qts, uint64_t addr) -{ - s->addr = addr; - - s->obj.get_driver = omap_i2c_get_driver; - s->obj.start_hw = omap_i2c_start_hw; - - s->parent.send = omap_i2c_send; - s->parent.recv = omap_i2c_recv; - s->parent.qts = qts; -} - -static void omap_i2c_register_nodes(void) -{ - qos_node_create_driver("omap_i2c", NULL); - qos_node_produces("omap_i2c", "i2c-bus"); -} - -libqos_init(omap_i2c_register_nodes); |