diff options
| -rw-r--r-- | hw/char/imx_serial.c | 82 | ||||
| -rw-r--r-- | include/hw/char/imx_serial.h | 102 |
2 files changed, 104 insertions, 80 deletions
diff --git a/hw/char/imx_serial.c b/hw/char/imx_serial.c index f3fbc77..1dcb325 100644 --- a/hw/char/imx_serial.c +++ b/hw/char/imx_serial.c @@ -4,6 +4,7 @@ * Copyright (c) 2008 OKL * Originally Written by Hans Jiang * Copyright (c) 2011 NICTA Pty Ltd. + * Updated by Jean-Christophe Dubois <jcd@tribudubois.net> * * This work is licensed under the terms of the GNU GPL, version 2 or later. * See the COPYING file in the top-level directory. @@ -17,8 +18,7 @@ * is a real serial device. */ -#include "hw/hw.h" -#include "hw/sysbus.h" +#include "hw/char/imx_serial.h" #include "sysemu/sysemu.h" #include "sysemu/char.h" #include "hw/arm/imx.h" @@ -43,35 +43,6 @@ do { printf("imx_serial: " fmt , ##args); } while (0) # define IPRINTF(fmt, args...) do {} while (0) #endif -#define TYPE_IMX_SERIAL "imx-serial" -#define IMX_SERIAL(obj) OBJECT_CHECK(IMXSerialState, (obj), TYPE_IMX_SERIAL) - -typedef struct IMXSerialState { - SysBusDevice parent_obj; - - MemoryRegion iomem; - int32_t readbuff; - - uint32_t usr1; - uint32_t usr2; - uint32_t ucr1; - uint32_t ucr2; - uint32_t uts1; - - /* - * The registers below are implemented just so that the - * guest OS sees what it has written - */ - uint32_t onems; - uint32_t ufcr; - uint32_t ubmr; - uint32_t ubrc; - uint32_t ucr3; - - qemu_irq irq; - CharDriverState *chr; -} IMXSerialState; - static const VMStateDescription vmstate_imx_serial = { .name = "imx-serial", .version_id = 1, @@ -91,55 +62,6 @@ static const VMStateDescription vmstate_imx_serial = { }, }; - -#define URXD_CHARRDY (1<<15) /* character read is valid */ -#define URXD_ERR (1<<14) /* Character has error */ -#define URXD_BRK (1<<11) /* Break received */ - -#define USR1_PARTYER (1<<15) /* Parity Error */ -#define USR1_RTSS (1<<14) /* RTS pin status */ -#define USR1_TRDY (1<<13) /* Tx ready */ -#define USR1_RTSD (1<<12) /* RTS delta: pin changed state */ -#define USR1_ESCF (1<<11) /* Escape sequence interrupt */ -#define USR1_FRAMERR (1<<10) /* Framing error */ -#define USR1_RRDY (1<<9) /* receiver ready */ -#define USR1_AGTIM (1<<8) /* Aging timer interrupt */ -#define USR1_DTRD (1<<7) /* DTR changed */ -#define USR1_RXDS (1<<6) /* Receiver is idle */ -#define USR1_AIRINT (1<<5) /* Aysnch IR interrupt */ -#define USR1_AWAKE (1<<4) /* Falling edge detected on RXd pin */ - -#define USR2_ADET (1<<15) /* Autobaud complete */ -#define USR2_TXFE (1<<14) /* Transmit FIFO empty */ -#define USR2_DTRF (1<<13) /* DTR/DSR transition */ -#define USR2_IDLE (1<<12) /* UART has been idle for too long */ -#define USR2_ACST (1<<11) /* Autobaud counter stopped */ -#define USR2_RIDELT (1<<10) /* Ring Indicator delta */ -#define USR2_RIIN (1<<9) /* Ring Indicator Input */ -#define USR2_IRINT (1<<8) /* Serial Infrared Interrupt */ -#define USR2_WAKE (1<<7) /* Start bit detected */ -#define USR2_DCDDELT (1<<6) /* Data Carrier Detect delta */ -#define USR2_DCDIN (1<<5) /* Data Carrier Detect Input */ -#define USR2_RTSF (1<<4) /* RTS transition */ -#define USR2_TXDC (1<<3) /* Transmission complete */ -#define USR2_BRCD (1<<2) /* Break condition detected */ -#define USR2_ORE (1<<1) /* Overrun error */ -#define USR2_RDR (1<<0) /* Receive data ready */ - -#define UCR1_TRDYEN (1<<13) /* Tx Ready Interrupt Enable */ -#define UCR1_RRDYEN (1<<9) /* Rx Ready Interrupt Enable */ -#define UCR1_TXMPTYEN (1<<6) /* Tx Empty Interrupt Enable */ -#define UCR1_UARTEN (1<<0) /* UART Enable */ - -#define UCR2_TXEN (1<<2) /* Transmitter enable */ -#define UCR2_RXEN (1<<1) /* Receiver enable */ -#define UCR2_SRST (1<<0) /* Reset complete */ - -#define UTS1_TXEMPTY (1<<6) -#define UTS1_RXEMPTY (1<<5) -#define UTS1_TXFULL (1<<4) -#define UTS1_RXFULL (1<<3) - static void imx_update(IMXSerialState *s) { uint32_t flags; diff --git a/include/hw/char/imx_serial.h b/include/hw/char/imx_serial.h new file mode 100644 index 0000000..6cd75c0 --- /dev/null +++ b/include/hw/char/imx_serial.h @@ -0,0 +1,102 @@ +/* + * Device model for i.MX UART + * + * Copyright (c) 2008 OKL + * Originally Written by Hans Jiang + * Copyright (c) 2011 NICTA Pty Ltd. + * Updated by Jean-Christophe Dubois <jcd@tribudubois.net> + * + * 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. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef IMX_SERIAL_H +#define IMX_SERIAL_H + +#include "hw/sysbus.h" + +#define TYPE_IMX_SERIAL "imx.serial" +#define IMX_SERIAL(obj) OBJECT_CHECK(IMXSerialState, (obj), TYPE_IMX_SERIAL) + +#define URXD_CHARRDY (1<<15) /* character read is valid */ +#define URXD_ERR (1<<14) /* Character has error */ +#define URXD_BRK (1<<11) /* Break received */ + +#define USR1_PARTYER (1<<15) /* Parity Error */ +#define USR1_RTSS (1<<14) /* RTS pin status */ +#define USR1_TRDY (1<<13) /* Tx ready */ +#define USR1_RTSD (1<<12) /* RTS delta: pin changed state */ +#define USR1_ESCF (1<<11) /* Escape sequence interrupt */ +#define USR1_FRAMERR (1<<10) /* Framing error */ +#define USR1_RRDY (1<<9) /* receiver ready */ +#define USR1_AGTIM (1<<8) /* Aging timer interrupt */ +#define USR1_DTRD (1<<7) /* DTR changed */ +#define USR1_RXDS (1<<6) /* Receiver is idle */ +#define USR1_AIRINT (1<<5) /* Aysnch IR interrupt */ +#define USR1_AWAKE (1<<4) /* Falling edge detected on RXd pin */ + +#define USR2_ADET (1<<15) /* Autobaud complete */ +#define USR2_TXFE (1<<14) /* Transmit FIFO empty */ +#define USR2_DTRF (1<<13) /* DTR/DSR transition */ +#define USR2_IDLE (1<<12) /* UART has been idle for too long */ +#define USR2_ACST (1<<11) /* Autobaud counter stopped */ +#define USR2_RIDELT (1<<10) /* Ring Indicator delta */ +#define USR2_RIIN (1<<9) /* Ring Indicator Input */ +#define USR2_IRINT (1<<8) /* Serial Infrared Interrupt */ +#define USR2_WAKE (1<<7) /* Start bit detected */ +#define USR2_DCDDELT (1<<6) /* Data Carrier Detect delta */ +#define USR2_DCDIN (1<<5) /* Data Carrier Detect Input */ +#define USR2_RTSF (1<<4) /* RTS transition */ +#define USR2_TXDC (1<<3) /* Transmission complete */ +#define USR2_BRCD (1<<2) /* Break condition detected */ +#define USR2_ORE (1<<1) /* Overrun error */ +#define USR2_RDR (1<<0) /* Receive data ready */ + +#define UCR1_TRDYEN (1<<13) /* Tx Ready Interrupt Enable */ +#define UCR1_RRDYEN (1<<9) /* Rx Ready Interrupt Enable */ +#define UCR1_TXMPTYEN (1<<6) /* Tx Empty Interrupt Enable */ +#define UCR1_UARTEN (1<<0) /* UART Enable */ + +#define UCR2_TXEN (1<<2) /* Transmitter enable */ +#define UCR2_RXEN (1<<1) /* Receiver enable */ +#define UCR2_SRST (1<<0) /* Reset complete */ + +#define UTS1_TXEMPTY (1<<6) +#define UTS1_RXEMPTY (1<<5) +#define UTS1_TXFULL (1<<4) +#define UTS1_RXFULL (1<<3) + +typedef struct IMXSerialState { + /*< private >*/ + SysBusDevice parent_obj; + + /*< public >*/ + MemoryRegion iomem; + int32_t readbuff; + + uint32_t usr1; + uint32_t usr2; + uint32_t ucr1; + uint32_t ucr2; + uint32_t uts1; + + /* + * The registers below are implemented just so that the + * guest OS sees what it has written + */ + uint32_t onems; + uint32_t ufcr; + uint32_t ubmr; + uint32_t ubrc; + uint32_t ucr3; + + qemu_irq irq; + CharDriverState *chr; +} IMXSerialState; + +#endif |
