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qtest: Add functions for accessing devices on Aspeed I2C controller

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Add read and write functions for accessing registers of I2C devices
connected to the Aspeed I2C controller.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Ninad Palsule <ninad@linux.ibm.com>
Message-Id: <20230331173051.3857801-2-stefanb@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
This commit is contained in:
Stefan Berger 2023-03-31 13:30:49 -04:00 • committed by Thomas Huth
parent 2243299a74
commit a3ebb580a2
3 changed files with 165 additions and 0 deletions
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7
include/hw/i2c/aspeed_i2c.h
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@ -38,6 +38,13 @@ OBJECT_DECLARE_TYPE(AspeedI2CState, AspeedI2CClass, ASPEED_I2C)
#define ASPEED_I2C_OLD_NUM_REG 11
#define ASPEED_I2C_NEW_NUM_REG 22
#define A_I2CD_M_STOP_CMD BIT(5)
#define A_I2CD_M_RX_CMD BIT(3)
#define A_I2CD_M_TX_CMD BIT(1)
#define A_I2CD_M_START_CMD BIT(0)
#define A_I2CD_MASTER_EN BIT(0)
/* Tx State Machine */
#define I2CD_TX_STATE_MASK 0xf
#define I2CD_IDLE 0x0