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qemu-e2k/include/hw/char/ibex_uart.h

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hw/char: Initial commit of Ibex UART This is the initial commit of the Ibex UART device. Serial TX is working, while RX has been implemeneted but untested. This is based on the documentation from: https://docs.opentitan.org/hw/ip/uart/doc/ Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: LIU Zhiwei<zhiwei_liu@c-sky.com>
2020-04-23 23:07:27 +02:00
/*
* QEMU lowRISC Ibex UART device
*
* Copyright (c) 2020 Western Digital
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef HW_IBEX_UART_H
#define HW_IBEX_UART_H
#include "hw/sysbus.h"
hw/char: Convert the Ibex UART to use the registerfields API Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 06372c9cdeec715077899e71c858d9f0a2a3395b.1594332223.git.alistair.francis@wdc.com Message-Id: <06372c9cdeec715077899e71c858d9f0a2a3395b.1594332223.git.alistair.francis@wdc.com>
2020-07-10 00:04:51 +02:00
#include "hw/registerfields.h"
hw/char: Initial commit of Ibex UART This is the initial commit of the Ibex UART device. Serial TX is working, while RX has been implemeneted but untested. This is based on the documentation from: https://docs.opentitan.org/hw/ip/uart/doc/ Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: LIU Zhiwei<zhiwei_liu@c-sky.com>
2020-04-23 23:07:27 +02:00
#include "chardev/char-fe.h"
#include "qemu/timer.h"
Move QOM typedefs and add missing includes Some typedefs and macros are defined after the type check macros. This makes it difficult to automatically replace their definitions with OBJECT_DECLARE_TYPE. Patch generated using: $ ./scripts/codeconverter/converter.py -i \ --pattern=QOMStructTypedefSplit $(git grep -l '' -- '*.[ch]') which will split "typdef struct { ... } TypedefName" declarations. Followed by: $ ./scripts/codeconverter/converter.py -i --pattern=MoveSymbols \ $(git grep -l '' -- '*.[ch]') which will: - move the typedefs and #defines above the type check macros - add missing #include "qom/object.h" lines if necessary Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Message-Id: <20200831210740.126168-9-ehabkost@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Message-Id: <20200831210740.126168-10-ehabkost@redhat.com> Message-Id: <20200831210740.126168-11-ehabkost@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-09-03 22:43:22 +02:00
#include "qom/object.h"
hw/char: Initial commit of Ibex UART This is the initial commit of the Ibex UART device. Serial TX is working, while RX has been implemeneted but untested. This is based on the documentation from: https://docs.opentitan.org/hw/ip/uart/doc/ Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: LIU Zhiwei<zhiwei_liu@c-sky.com>
2020-04-23 23:07:27 +02:00
hw/char: Convert the Ibex UART to use the registerfields API Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 06372c9cdeec715077899e71c858d9f0a2a3395b.1594332223.git.alistair.francis@wdc.com Message-Id: <06372c9cdeec715077899e71c858d9f0a2a3395b.1594332223.git.alistair.francis@wdc.com>
2020-07-10 00:04:51 +02:00
REG32(INTR_STATE, 0x00)
FIELD(INTR_STATE, TX_WATERMARK, 0, 1)
FIELD(INTR_STATE, RX_WATERMARK, 1, 1)
FIELD(INTR_STATE, TX_EMPTY, 2, 1)
FIELD(INTR_STATE, RX_OVERFLOW, 3, 1)
REG32(INTR_ENABLE, 0x04)
REG32(INTR_TEST, 0x08)
REG32(CTRL, 0x0C)
FIELD(CTRL, TX_ENABLE, 0, 1)
FIELD(CTRL, RX_ENABLE, 1, 1)
FIELD(CTRL, NF, 2, 1)
FIELD(CTRL, SLPBK, 4, 1)
FIELD(CTRL, LLPBK, 5, 1)
FIELD(CTRL, PARITY_EN, 6, 1)
FIELD(CTRL, PARITY_ODD, 7, 1)
FIELD(CTRL, RXBLVL, 8, 2)
FIELD(CTRL, NCO, 16, 16)
REG32(STATUS, 0x10)
FIELD(STATUS, TXFULL, 0, 1)
FIELD(STATUS, RXFULL, 1, 1)
FIELD(STATUS, TXEMPTY, 2, 1)
FIELD(STATUS, RXIDLE, 4, 1)
FIELD(STATUS, RXEMPTY, 5, 1)
REG32(RDATA, 0x14)
REG32(WDATA, 0x18)
REG32(FIFO_CTRL, 0x1c)
FIELD(FIFO_CTRL, RXRST, 0, 1)
FIELD(FIFO_CTRL, TXRST, 1, 1)
FIELD(FIFO_CTRL, RXILVL, 2, 3)
FIELD(FIFO_CTRL, TXILVL, 5, 2)
REG32(FIFO_STATUS, 0x20)
REG32(OVRD, 0x24)
REG32(VAL, 0x28)
REG32(TIMEOUT_CTRL, 0x2c)
hw/char: Initial commit of Ibex UART This is the initial commit of the Ibex UART device. Serial TX is working, while RX has been implemeneted but untested. This is based on the documentation from: https://docs.opentitan.org/hw/ip/uart/doc/ Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: LIU Zhiwei<zhiwei_liu@c-sky.com>
2020-04-23 23:07:27 +02:00
#define IBEX_UART_TX_FIFO_SIZE 16
hw/char: Convert the Ibex UART to use the qdev Clock model Conver the Ibex UART to use the recently added qdev-clock functions. Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: b0136fad870a29049959ec161c1217b967d7e19d.1594332223.git.alistair.francis@wdc.com Message-Id: <b0136fad870a29049959ec161c1217b967d7e19d.1594332223.git.alistair.francis@wdc.com>
2020-07-10 00:04:48 +02:00
#define IBEX_UART_CLOCK 50000000 /* 50MHz clock */
hw/char: Initial commit of Ibex UART This is the initial commit of the Ibex UART device. Serial TX is working, while RX has been implemeneted but untested. This is based on the documentation from: https://docs.opentitan.org/hw/ip/uart/doc/ Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: LIU Zhiwei<zhiwei_liu@c-sky.com>
2020-04-23 23:07:27 +02:00
#define TYPE_IBEX_UART "ibex-uart"
Use OBJECT_DECLARE_SIMPLE_TYPE when possible This converts existing DECLARE_INSTANCE_CHECKER usage to OBJECT_DECLARE_SIMPLE_TYPE when possible. $ ./scripts/codeconverter/converter.py -i \ --pattern=AddObjectDeclareSimpleType $(git grep -l '' -- '*.[ch]') Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Acked-by: Paul Durrant <paul@xen.org> Message-Id: <20200916182519.415636-6-ehabkost@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-09-16 20:25:19 +02:00
OBJECT_DECLARE_SIMPLE_TYPE(IbexUartState, IBEX_UART)
hw/char: Initial commit of Ibex UART This is the initial commit of the Ibex UART device. Serial TX is working, while RX has been implemeneted but untested. This is based on the documentation from: https://docs.opentitan.org/hw/ip/uart/doc/ Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: LIU Zhiwei<zhiwei_liu@c-sky.com>
2020-04-23 23:07:27 +02:00
Move QOM typedefs and add missing includes Some typedefs and macros are defined after the type check macros. This makes it difficult to automatically replace their definitions with OBJECT_DECLARE_TYPE. Patch generated using: $ ./scripts/codeconverter/converter.py -i \ --pattern=QOMStructTypedefSplit $(git grep -l '' -- '*.[ch]') which will split "typdef struct { ... } TypedefName" declarations. Followed by: $ ./scripts/codeconverter/converter.py -i --pattern=MoveSymbols \ $(git grep -l '' -- '*.[ch]') which will: - move the typedefs and #defines above the type check macros - add missing #include "qom/object.h" lines if necessary Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Message-Id: <20200831210740.126168-9-ehabkost@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Message-Id: <20200831210740.126168-10-ehabkost@redhat.com> Message-Id: <20200831210740.126168-11-ehabkost@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-09-03 22:43:22 +02:00
struct IbexUartState {
hw/char: Initial commit of Ibex UART This is the initial commit of the Ibex UART device. Serial TX is working, while RX has been implemeneted but untested. This is based on the documentation from: https://docs.opentitan.org/hw/ip/uart/doc/ Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: LIU Zhiwei<zhiwei_liu@c-sky.com>
2020-04-23 23:07:27 +02:00
/* <private> */
SysBusDevice parent_obj;
/* <public> */
MemoryRegion mmio;
uint8_t tx_fifo[IBEX_UART_TX_FIFO_SIZE];
uint32_t tx_level;
QEMUTimer *fifo_trigger_handle;
uint64_t char_tx_time;
uint32_t uart_intr_state;
uint32_t uart_intr_enable;
uint32_t uart_ctrl;
uint32_t uart_status;
uint32_t uart_rdata;
uint32_t uart_fifo_ctrl;
uint32_t uart_fifo_status;
uint32_t uart_ovrd;
uint32_t uart_val;
uint32_t uart_timeout_ctrl;
hw/char: Convert the Ibex UART to use the qdev Clock model Conver the Ibex UART to use the recently added qdev-clock functions. Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: b0136fad870a29049959ec161c1217b967d7e19d.1594332223.git.alistair.francis@wdc.com Message-Id: <b0136fad870a29049959ec161c1217b967d7e19d.1594332223.git.alistair.francis@wdc.com>
2020-07-10 00:04:48 +02:00
Clock *f_clk;
hw/char: Initial commit of Ibex UART This is the initial commit of the Ibex UART device. Serial TX is working, while RX has been implemeneted but untested. This is based on the documentation from: https://docs.opentitan.org/hw/ip/uart/doc/ Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: LIU Zhiwei<zhiwei_liu@c-sky.com>
2020-04-23 23:07:27 +02:00
CharBackend chr;
qemu_irq tx_watermark;
qemu_irq rx_watermark;
qemu_irq tx_empty;
qemu_irq rx_overflow;
Move QOM typedefs and add missing includes Some typedefs and macros are defined after the type check macros. This makes it difficult to automatically replace their definitions with OBJECT_DECLARE_TYPE. Patch generated using: $ ./scripts/codeconverter/converter.py -i \ --pattern=QOMStructTypedefSplit $(git grep -l '' -- '*.[ch]') which will split "typdef struct { ... } TypedefName" declarations. Followed by: $ ./scripts/codeconverter/converter.py -i --pattern=MoveSymbols \ $(git grep -l '' -- '*.[ch]') which will: - move the typedefs and #defines above the type check macros - add missing #include "qom/object.h" lines if necessary Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Message-Id: <20200831210740.126168-9-ehabkost@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Message-Id: <20200831210740.126168-10-ehabkost@redhat.com> Message-Id: <20200831210740.126168-11-ehabkost@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-09-03 22:43:22 +02:00
};
hw/char: Initial commit of Ibex UART This is the initial commit of the Ibex UART device. Serial TX is working, while RX has been implemeneted but untested. This is based on the documentation from: https://docs.opentitan.org/hw/ip/uart/doc/ Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: LIU Zhiwei<zhiwei_liu@c-sky.com>
2020-04-23 23:07:27 +02:00
#endif /* HW_IBEX_UART_H */
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