diff options
author | Kinsey Moore <kinsey.moore@oarcorp.com> | 2020-10-26 10:26:49 -0500 |
---|---|---|
committer | Joel Sherrill <joel@rtems.org> | 2020-12-02 18:51:40 -0600 |
commit | f0859573f90b539e2a37857b129323c3d6211512 (patch) | |
tree | 02d9c0f6355ad697563c5b7b89dc791b6e585f1d /bsps/arm | |
parent | dosfs: Fix Doxygen group placement (diff) | |
download | rtems-f0859573f90b539e2a37857b129323c3d6211512.tar.bz2 |
bsps: Move zynq-uart to bsps/shared
This moves the zynq-uart driver from bsps/arm/shared to bsps/shared to
accomodate use by AArch64 BSPs.
Diffstat (limited to 'bsps/arm')
-rw-r--r-- | bsps/arm/headers.am | 2 | ||||
-rw-r--r-- | bsps/arm/include/bsp/zynq-uart-regs.h | 163 | ||||
-rw-r--r-- | bsps/arm/include/bsp/zynq-uart.h | 78 | ||||
-rw-r--r-- | bsps/arm/shared/serial/zynq-uart-polled.c | 184 | ||||
-rw-r--r-- | bsps/arm/shared/serial/zynq-uart.c | 177 | ||||
-rw-r--r-- | bsps/arm/xilinx-zynq/console/console-config.c | 2 | ||||
-rw-r--r-- | bsps/arm/xilinx-zynq/console/console-init.c | 2 | ||||
-rw-r--r-- | bsps/arm/xilinx-zynq/console/debug-console.c | 2 | ||||
-rw-r--r-- | bsps/arm/xilinx-zynq/include/bsp.h | 2 | ||||
-rw-r--r-- | bsps/arm/xilinx-zynq/start/bspreset.c | 2 | ||||
-rw-r--r-- | bsps/arm/xilinx-zynqmp/console/console-config.c | 2 |
11 files changed, 6 insertions, 610 deletions
diff --git a/bsps/arm/headers.am b/bsps/arm/headers.am index bff9a16fc8..a4d6dfa09e 100644 --- a/bsps/arm/headers.am +++ b/bsps/arm/headers.am @@ -31,8 +31,6 @@ include_bsp_HEADERS += ../../../../../bsps/arm/include/bsp/lpc-i2s.h include_bsp_HEADERS += ../../../../../bsps/arm/include/bsp/lpc-lcd.h include_bsp_HEADERS += ../../../../../bsps/arm/include/bsp/lpc-timer.h include_bsp_HEADERS += ../../../../../bsps/arm/include/bsp/start.h -include_bsp_HEADERS += ../../../../../bsps/arm/include/bsp/zynq-uart-regs.h -include_bsp_HEADERS += ../../../../../bsps/arm/include/bsp/zynq-uart.h include_libcpudir = $(includedir)/libcpu include_libcpu_HEADERS = diff --git a/bsps/arm/include/bsp/zynq-uart-regs.h b/bsps/arm/include/bsp/zynq-uart-regs.h deleted file mode 100644 index 8b6e7d513b..0000000000 --- a/bsps/arm/include/bsp/zynq-uart-regs.h +++ /dev/null @@ -1,163 +0,0 @@ -/** - * @file - * @ingroup zynq_uart_regs - * @brief UART register definitions. - */ - -/* - * SPDX-License-Identifier: BSD-2-Clause - * - * Copyright (C) 2013 embedded brains GmbH - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -/** - * @defgroup zynq_uart_regs UART Register Definitions - * @ingroup zynq_uart - * @brief UART Register Definitions - * @{ - */ - -#ifndef LIBBSP_ARM_XILINX_ZYNQ_UART_REGS_H -#define LIBBSP_ARM_XILINX_ZYNQ_UART_REGS_H - -#include <bsp/utility.h> - -#define ZYNQ_UART_FIFO_DEPTH 64 - -typedef struct zynq_uart { - uint32_t control; -#define ZYNQ_UART_CONTROL_STPBRK BSP_BIT32(8) -#define ZYNQ_UART_CONTROL_STTBRK BSP_BIT32(7) -#define ZYNQ_UART_CONTROL_RSTTO BSP_BIT32(6) -#define ZYNQ_UART_CONTROL_TXDIS BSP_BIT32(5) -#define ZYNQ_UART_CONTROL_TXEN BSP_BIT32(4) -#define ZYNQ_UART_CONTROL_RXDIS BSP_BIT32(3) -#define ZYNQ_UART_CONTROL_RXEN BSP_BIT32(2) -#define ZYNQ_UART_CONTROL_TXRES BSP_BIT32(1) -#define ZYNQ_UART_CONTROL_RXRES BSP_BIT32(0) - uint32_t mode; -#define ZYNQ_UART_MODE_CHMODE(val) BSP_FLD32(val, 8, 9) -#define ZYNQ_UART_MODE_CHMODE_GET(reg) BSP_FLD32GET(reg, 8, 9) -#define ZYNQ_UART_MODE_CHMODE_SET(reg, val) BSP_FLD32SET(reg, val, 8, 9) -#define ZYNQ_UART_MODE_CHMODE_NORMAL 0x00U -#define ZYNQ_UART_MODE_CHMODE_AUTO_ECHO 0x01U -#define ZYNQ_UART_MODE_CHMODE_LOCAL_LOOPBACK 0x02U -#define ZYNQ_UART_MODE_CHMODE_REMOTE_LOOPBACK 0x03U -#define ZYNQ_UART_MODE_NBSTOP(val) BSP_FLD32(val, 6, 7) -#define ZYNQ_UART_MODE_NBSTOP_GET(reg) BSP_FLD32GET(reg, 6, 7) -#define ZYNQ_UART_MODE_NBSTOP_SET(reg, val) BSP_FLD32SET(reg, val, 6, 7) -#define ZYNQ_UART_MODE_NBSTOP_STOP_1 0x00U -#define ZYNQ_UART_MODE_NBSTOP_STOP_1_5 0x01U -#define ZYNQ_UART_MODE_NBSTOP_STOP_2 0x02U -#define ZYNQ_UART_MODE_PAR(val) BSP_FLD32(val, 3, 5) -#define ZYNQ_UART_MODE_PAR_GET(reg) BSP_FLD32GET(reg, 3, 5) -#define ZYNQ_UART_MODE_PAR_SET(reg, val) BSP_FLD32SET(reg, val, 3, 5) -#define ZYNQ_UART_MODE_PAR_EVEN 0x00U -#define ZYNQ_UART_MODE_PAR_ODD 0x01U -#define ZYNQ_UART_MODE_PAR_SPACE 0x02U -#define ZYNQ_UART_MODE_PAR_MARK 0x03U -#define ZYNQ_UART_MODE_PAR_NONE 0x04U -#define ZYNQ_UART_MODE_CHRL(val) BSP_FLD32(val, 1, 2) -#define ZYNQ_UART_MODE_CHRL_GET(reg) BSP_FLD32GET(reg, 1, 2) -#define ZYNQ_UART_MODE_CHRL_SET(reg, val) BSP_FLD32SET(reg, val, 1, 2) -#define ZYNQ_UART_MODE_CHRL_8 0x00U -#define ZYNQ_UART_MODE_CHRL_7 0x02U -#define ZYNQ_UART_MODE_CHRL_6 0x03U -#define ZYNQ_UART_MODE_CLKS BSP_BIT32(0) - uint32_t irq_en; - uint32_t irq_dis; - uint32_t irq_mask; - uint32_t irq_sts; -#define ZYNQ_UART_TOVR BSP_BIT32(12) -#define ZYNQ_UART_TNFUL BSP_BIT32(11) -#define ZYNQ_UART_TTRIG BSP_BIT32(10) -#define ZYNQ_UART_DMSI BSP_BIT32(9) -#define ZYNQ_UART_TIMEOUT BSP_BIT32(8) -#define ZYNQ_UART_PARE BSP_BIT32(7) -#define ZYNQ_UART_FRAME BSP_BIT32(6) -#define ZYNQ_UART_ROVR BSP_BIT32(5) -#define ZYNQ_UART_TFUL BSP_BIT32(4) -#define ZYNQ_UART_TEMPTY BSP_BIT32(3) -#define ZYNQ_UART_RFUL BSP_BIT32(2) -#define ZYNQ_UART_REMPTY BSP_BIT32(1) -#define ZYNQ_UART_RTRIG BSP_BIT32(0) - uint32_t baud_rate_gen; -#define ZYNQ_UART_BAUD_RATE_GEN_CD(val) BSP_FLD32(val, 0, 15) -#define ZYNQ_UART_BAUD_RATE_GEN_CD_GET(reg) BSP_FLD32GET(reg, 0, 15) -#define ZYNQ_UART_BAUD_RATE_GEN_CD_SET(reg, val) BSP_FLD32SET(reg, val, 0, 15) - uint32_t rx_timeout; -#define ZYNQ_UART_RX_TIMEOUT_RTO(val) BSP_FLD32(val, 0, 7) -#define ZYNQ_UART_RX_TIMEOUT_RTO_GET(reg) BSP_FLD32GET(reg, 0, 7) -#define ZYNQ_UART_RX_TIMEOUT_RTO_SET(reg, val) BSP_FLD32SET(reg, val, 0, 7) - uint32_t rx_fifo_trg_lvl; -#define ZYNQ_UART_RX_FIFO_TRG_LVL_RTRIG(val) BSP_FLD32(val, 0, 5) -#define ZYNQ_UART_RX_FIFO_TRG_LVL_RTRIG_GET(reg) BSP_FLD32GET(reg, 0, 5) -#define ZYNQ_UART_RX_FIFO_TRG_LVL_RTRIG_SET(reg, val) BSP_FLD32SET(reg, val, 0, 5) - uint32_t modem_ctrl; -#define ZYNQ_UART_MODEM_CTRL_FCM BSP_BIT32(5) -#define ZYNQ_UART_MODEM_CTRL_RTS BSP_BIT32(1) -#define ZYNQ_UART_MODEM_CTRL_DTR BSP_BIT32(0) - uint32_t modem_sts; -#define ZYNQ_UART_MODEM_STS_FCMS BSP_BIT32(8) -#define ZYNQ_UART_MODEM_STS_DCD BSP_BIT32(7) -#define ZYNQ_UART_MODEM_STS_RI BSP_BIT32(6) -#define ZYNQ_UART_MODEM_STS_DSR BSP_BIT32(5) -#define ZYNQ_UART_MODEM_STS_CTS BSP_BIT32(4) -#define ZYNQ_UART_MODEM_STS_DDCD BSP_BIT32(3) -#define ZYNQ_UART_MODEM_STS_TERI BSP_BIT32(2) -#define ZYNQ_UART_MODEM_STS_DDSR BSP_BIT32(1) -#define ZYNQ_UART_MODEM_STS_DCTS BSP_BIT32(0) - uint32_t channel_sts; -#define ZYNQ_UART_CHANNEL_STS_TNFUL BSP_BIT32(14) -#define ZYNQ_UART_CHANNEL_STS_TTRIG BSP_BIT32(13) -#define ZYNQ_UART_CHANNEL_STS_FDELT BSP_BIT32(12) -#define ZYNQ_UART_CHANNEL_STS_TACTIVE BSP_BIT32(11) -#define ZYNQ_UART_CHANNEL_STS_RACTIVE BSP_BIT32(10) -#define ZYNQ_UART_CHANNEL_STS_TFUL BSP_BIT32(4) -#define ZYNQ_UART_CHANNEL_STS_TEMPTY BSP_BIT32(3) -#define ZYNQ_UART_CHANNEL_STS_RFUL BSP_BIT32(2) -#define ZYNQ_UART_CHANNEL_STS_REMPTY BSP_BIT32(1) -#define ZYNQ_UART_CHANNEL_STS_RTRIG BSP_BIT32(0) - uint32_t tx_rx_fifo; -#define ZYNQ_UART_TX_RX_FIFO_FIFO(val) BSP_FLD32(val, 0, 7) -#define ZYNQ_UART_TX_RX_FIFO_FIFO_GET(reg) BSP_FLD32GET(reg, 0, 7) -#define ZYNQ_UART_TX_RX_FIFO_FIFO_SET(reg, val) BSP_FLD32SET(reg, val, 0, 7) - uint32_t baud_rate_div; -#define ZYNQ_UART_BAUD_RATE_DIV_BDIV(val) BSP_FLD32(val, 0, 7) -#define ZYNQ_UART_BAUD_RATE_DIV_BDIV_GET(reg) BSP_FLD32GET(reg, 0, 7) -#define ZYNQ_UART_BAUD_RATE_DIV_BDIV_SET(reg, val) BSP_FLD32SET(reg, val, 0, 7) - uint32_t flow_delay; -#define ZYNQ_UART_FLOW_DELAY_FDEL(val) BSP_FLD32(val, 0, 5) -#define ZYNQ_UART_FLOW_DELAY_FDEL_GET(reg) BSP_FLD32GET(reg, 0, 5) -#define ZYNQ_UART_FLOW_DELAY_FDEL_SET(reg, val) BSP_FLD32SET(reg, val, 0, 5) - uint32_t reserved_3c[2]; - uint32_t tx_fifo_trg_lvl; -#define ZYNQ_UART_TX_FIFO_TRG_LVL_TTRIG(val) BSP_FLD32(val, 0, 5) -#define ZYNQ_UART_TX_FIFO_TRG_LVL_TTRIG_GET(reg) BSP_FLD32GET(reg, 0, 5) -#define ZYNQ_UART_TX_FIFO_TRG_LVL_TTRIG_SET(reg, val) BSP_FLD32SET(reg, val, 0, 5) -} zynq_uart; - -/** @} */ - -#endif /* LIBBSP_ARM_XILINX_ZYNQ_UART_REGS_H */ diff --git a/bsps/arm/include/bsp/zynq-uart.h b/bsps/arm/include/bsp/zynq-uart.h deleted file mode 100644 index 20c3c9b653..0000000000 --- a/bsps/arm/include/bsp/zynq-uart.h +++ /dev/null @@ -1,78 +0,0 @@ -/** - * @file - * @ingroup zynq_uart - * @brief UART support. - */ - -/* - * SPDX-License-Identifier: BSD-2-Clause - * - * Copyright (C) 2013, XXX embedded brains GmbH - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef LIBBSP_ARM_XILINX_ZYNQ_UART_H -#define LIBBSP_ARM_XILINX_ZYNQ_UART_H - -#include <rtems/termiostypes.h> - -#ifdef __cplusplus -extern "C" { -#endif /* __cplusplus */ - -/** - * @defgroup zynq_uart UART Support - * @ingroup RTEMSBSPsARMZynq - * @brief UART Support - */ - -typedef struct { - rtems_termios_device_context base; - volatile struct zynq_uart *regs; - bool transmitting; - rtems_vector_number irq; -} zynq_uart_context; - -extern const rtems_termios_device_handler zynq_uart_handler; - -#define ZYNQ_UART_DEFAULT_BAUD 115200 - -void zynq_uart_initialize(rtems_termios_device_context *base); - -int zynq_uart_read_polled(rtems_termios_device_context *base); - -void zynq_uart_write_polled( - rtems_termios_device_context *base, - char c -); - -/** - * Flush TX FIFO and wait until it is empty. Used in bsp_reset. - */ -void zynq_uart_reset_tx_flush(zynq_uart_context *ctx); - -#ifdef __cplusplus -} -#endif /* __cplusplus */ - -#endif /* LIBBSP_ARM_XILINX_ZYNQ_UART_H */ diff --git a/bsps/arm/shared/serial/zynq-uart-polled.c b/bsps/arm/shared/serial/zynq-uart-polled.c deleted file mode 100644 index e6f478ee07..0000000000 --- a/bsps/arm/shared/serial/zynq-uart-polled.c +++ /dev/null @@ -1,184 +0,0 @@ -/* - * SPDX-License-Identifier: BSD-2-Clause - * - * Copyright (C) 2013, 2017 embedded brains GmbH - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#include <bsp/zynq-uart.h> -#include <bsp/zynq-uart-regs.h> - -#include <bspopts.h> - -/* - * Make weak and let the user override. - */ -uint32_t zynq_uart_input_clock(void) __attribute__ ((weak)); - -uint32_t zynq_uart_input_clock(void) -{ - return ZYNQ_CLOCK_UART; -} - -static int zynq_cal_baud_rate(uint32_t baudrate, - uint32_t* brgr, - uint32_t* bauddiv, - uint32_t modereg) -{ - uint32_t brgr_value; /* Calculated value for baud rate generator */ - uint32_t calcbaudrate; /* Calculated baud rate */ - uint32_t bauderror; /* Diff between calculated and requested baud rate */ - uint32_t best_error = 0xFFFFFFFF; - uint32_t percenterror; - uint32_t bdiv; - uint32_t inputclk = zynq_uart_input_clock(); - - /* - * Make sure the baud rate is not impossilby large. - * Fastest possible baud rate is Input Clock / 2. - */ - if ((baudrate * 2) > inputclk) { - return -1; - } - /* - * Check whether the input clock is divided by 8 - */ - if(modereg & ZYNQ_UART_MODE_CLKS) { - inputclk = inputclk / 8; - } - - /* - * Determine the Baud divider. It can be 4to 254. - * Loop through all possible combinations - */ - for (bdiv = 4; bdiv < 255; bdiv++) { - - /* - * Calculate the value for BRGR register - */ - brgr_value = inputclk / (baudrate * (bdiv + 1)); - - /* - * Calculate the baud rate from the BRGR value - */ - calcbaudrate = inputclk/ (brgr_value * (bdiv + 1)); - - /* - * Avoid unsigned integer underflow - */ - if (baudrate > calcbaudrate) { - bauderror = baudrate - calcbaudrate; - } - else { - bauderror = calcbaudrate - baudrate; - } - - /* - * Find the calculated baud rate closest to requested baud rate. - */ - if (best_error > bauderror) { - *brgr = brgr_value; - *bauddiv = bdiv; - best_error = bauderror; - } - } - - /* - * Make sure the best error is not too large. - */ - percenterror = (best_error * 100) / baudrate; -#define XUARTPS_MAX_BAUD_ERROR_RATE 3 /* max % error allowed */ - if (XUARTPS_MAX_BAUD_ERROR_RATE < percenterror) { - return -1; - } - - return 0; -} - -void zynq_uart_initialize(rtems_termios_device_context *base) -{ - zynq_uart_context *ctx = (zynq_uart_context *) base; - volatile zynq_uart *regs = ctx->regs; - uint32_t brgr = 0x3e; - uint32_t bauddiv = 0x6; - - zynq_uart_reset_tx_flush(ctx); - - zynq_cal_baud_rate(ZYNQ_UART_DEFAULT_BAUD, &brgr, &bauddiv, regs->mode); - - regs->control &= ~(ZYNQ_UART_CONTROL_RXEN | ZYNQ_UART_CONTROL_TXEN); - regs->control = ZYNQ_UART_CONTROL_RXDIS - | ZYNQ_UART_CONTROL_TXDIS - | ZYNQ_UART_CONTROL_RXRES - | ZYNQ_UART_CONTROL_TXRES; - regs->mode = ZYNQ_UART_MODE_CHMODE(ZYNQ_UART_MODE_CHMODE_NORMAL) - | ZYNQ_UART_MODE_PAR(ZYNQ_UART_MODE_PAR_NONE) - | ZYNQ_UART_MODE_CHRL(ZYNQ_UART_MODE_CHRL_8); - regs->baud_rate_gen = ZYNQ_UART_BAUD_RATE_GEN_CD(brgr); - regs->baud_rate_div = ZYNQ_UART_BAUD_RATE_DIV_BDIV(bauddiv); - regs->rx_fifo_trg_lvl = ZYNQ_UART_RX_FIFO_TRG_LVL_RTRIG(0); - regs->rx_timeout = ZYNQ_UART_RX_TIMEOUT_RTO(0); - regs->control = ZYNQ_UART_CONTROL_RXEN - | ZYNQ_UART_CONTROL_TXEN - | ZYNQ_UART_CONTROL_RSTTO; -} - -int zynq_uart_read_polled(rtems_termios_device_context *base) -{ - zynq_uart_context *ctx = (zynq_uart_context *) base; - volatile zynq_uart *regs = ctx->regs; - - if ((regs->channel_sts & ZYNQ_UART_CHANNEL_STS_REMPTY) != 0) { - return -1; - } else { - return ZYNQ_UART_TX_RX_FIFO_FIFO_GET(regs->tx_rx_fifo); - } -} - -void zynq_uart_write_polled( - rtems_termios_device_context *base, - char c -) -{ - zynq_uart_context *ctx = (zynq_uart_context *) base; - volatile zynq_uart *regs = ctx->regs; - - while ((regs->channel_sts & ZYNQ_UART_CHANNEL_STS_TFUL) != 0) { - /* Wait */ - } - - regs->tx_rx_fifo = ZYNQ_UART_TX_RX_FIFO_FIFO(c); -} - -void zynq_uart_reset_tx_flush(zynq_uart_context *ctx) -{ - volatile zynq_uart *regs = ctx->regs; - int c = 4; - - while (c-- > 0) - zynq_uart_write_polled(&ctx->base, '\r'); - - while ((regs->channel_sts & ZYNQ_UART_CHANNEL_STS_TEMPTY) == 0) { - /* Wait */ - } -} diff --git a/bsps/arm/shared/serial/zynq-uart.c b/bsps/arm/shared/serial/zynq-uart.c deleted file mode 100644 index fc670441b8..0000000000 --- a/bsps/arm/shared/serial/zynq-uart.c +++ /dev/null @@ -1,177 +0,0 @@ -/* - * SPDX-License-Identifier: BSD-2-Clause - * - * Copyright (C) 2013, 2017 embedded brains GmbH - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#include <bsp/zynq-uart.h> -#include <bsp/zynq-uart-regs.h> -#include <bsp/irq.h> - -#include <bspopts.h> - -#ifdef ZYNQ_CONSOLE_USE_INTERRUPTS -static void zynq_uart_interrupt(void *arg) -{ - rtems_termios_tty *tty = arg; - zynq_uart_context *ctx = rtems_termios_get_device_context(tty); - volatile zynq_uart *regs = ctx->regs; - uint32_t channel_sts; - - if ((regs->irq_sts & (ZYNQ_UART_TIMEOUT | ZYNQ_UART_RTRIG)) != 0) { - regs->irq_sts = ZYNQ_UART_TIMEOUT | ZYNQ_UART_RTRIG; - - do { - char c = (char) ZYNQ_UART_TX_RX_FIFO_FIFO_GET(regs->tx_rx_fifo); - - rtems_termios_enqueue_raw_characters(tty, &c, 1); - - channel_sts = regs->channel_sts; - } while ((channel_sts & ZYNQ_UART_CHANNEL_STS_REMPTY) == 0); - } else { - channel_sts = regs->channel_sts; - } - - if (ctx->transmitting && (channel_sts & ZYNQ_UART_CHANNEL_STS_TEMPTY) != 0) { - rtems_termios_dequeue_characters(tty, 1); - } -} -#endif - -static bool zynq_uart_first_open( - rtems_termios_tty *tty, - rtems_termios_device_context *base, - struct termios *term, - rtems_libio_open_close_args_t *args -) -{ -#ifdef ZYNQ_CONSOLE_USE_INTERRUPTS - zynq_uart_context *ctx = (zynq_uart_context *) base; - volatile zynq_uart *regs = ctx->regs; - rtems_status_code sc; -#endif - - rtems_termios_set_initial_baud(tty, ZYNQ_UART_DEFAULT_BAUD); - zynq_uart_initialize(base); - -#ifdef ZYNQ_CONSOLE_USE_INTERRUPTS - regs->rx_timeout = 32; - regs->rx_fifo_trg_lvl = ZYNQ_UART_FIFO_DEPTH / 2; - regs->irq_dis = 0xffffffff; - regs->irq_sts = 0xffffffff; - regs->irq_en = ZYNQ_UART_RTRIG | ZYNQ_UART_TIMEOUT; - sc = rtems_interrupt_handler_install( - ctx->irq, - "UART", - RTEMS_INTERRUPT_SHARED, - zynq_uart_interrupt, - tty - ); - if (sc != RTEMS_SUCCESSFUL) { - return false; - } -#endif - - return true; -} - -#ifdef ZYNQ_CONSOLE_USE_INTERRUPTS -static void zynq_uart_last_close( - rtems_termios_tty *tty, - rtems_termios_device_context *base, - rtems_libio_open_close_args_t *args -) -{ - zynq_uart_context *ctx = (zynq_uart_context *) base; - - rtems_interrupt_handler_remove(ctx->irq, zynq_uart_interrupt, tty); -} -#endif - -static void zynq_uart_write_support( - rtems_termios_device_context *base, - const char *buf, - size_t len -) -{ -#ifdef ZYNQ_CONSOLE_USE_INTERRUPTS - zynq_uart_context *ctx = (zynq_uart_context *) base; - volatile zynq_uart *regs = ctx->regs; - - if (len > 0) { - ctx->transmitting = true; - regs->irq_sts = ZYNQ_UART_TEMPTY; - regs->irq_en = ZYNQ_UART_TEMPTY; - regs->tx_rx_fifo = ZYNQ_UART_TX_RX_FIFO_FIFO(buf[0]); - } else { - ctx->transmitting = false; - regs->irq_dis = ZYNQ_UART_TEMPTY; - } -#else - ssize_t i; - - for (i = 0; i < len; ++i) { - zynq_uart_write_polled(base, buf[i]); - } -#endif -} - -static bool zynq_uart_set_attributes( - rtems_termios_device_context *context, - const struct termios *term -) -{ -#if 0 - volatile zynq_uart *regs = zynq_uart_get_regs(minor); - uint32_t brgr = 0; - uint32_t bauddiv = 0; - int rc; - - rc = zynq_cal_baud_rate(115200, &brgr, &bauddiv, regs->mode); - if (rc != 0) - return rc; - - regs->control &= ~(ZYNQ_UART_CONTROL_RXEN | ZYNQ_UART_CONTROL_TXEN); - regs->baud_rate_gen = ZYNQ_UART_BAUD_RATE_GEN_CD(brgr); - regs->baud_rate_div = ZYNQ_UART_BAUD_RATE_DIV_BDIV(bauddiv); - regs->control |= ZYNQ_UART_CONTROL_RXEN | ZYNQ_UART_CONTROL_TXEN; - - return true; -#else - return false; -#endif -} - -const rtems_termios_device_handler zynq_uart_handler = { - .first_open = zynq_uart_first_open, - .set_attributes = zynq_uart_set_attributes, - .write = zynq_uart_write_support, -#ifdef ZYNQ_CONSOLE_USE_INTERRUPTS - .last_close = zynq_uart_last_close, - .mode = TERMIOS_IRQ_DRIVEN -#else - .poll_read = zynq_uart_read_polled, - .mode = TERMIOS_POLLED -#endif -}; diff --git a/bsps/arm/xilinx-zynq/console/console-config.c b/bsps/arm/xilinx-zynq/console/console-config.c index 7e28716bbe..0581247a2d 100644 --- a/bsps/arm/xilinx-zynq/console/console-config.c +++ b/bsps/arm/xilinx-zynq/console/console-config.c @@ -26,7 +26,7 @@ */ #include <bsp/irq.h> -#include <bsp/zynq-uart.h> +#include <dev/serial/zynq-uart.h> zynq_uart_context zynq_uart_instances[2] = { { diff --git a/bsps/arm/xilinx-zynq/console/console-init.c b/bsps/arm/xilinx-zynq/console/console-init.c index 72ba27006c..a3659e3906 100644 --- a/bsps/arm/xilinx-zynq/console/console-init.c +++ b/bsps/arm/xilinx-zynq/console/console-init.c @@ -28,7 +28,7 @@ #include <rtems/console.h> #include <bsp.h> -#include <bsp/zynq-uart.h> +#include <dev/serial/zynq-uart.h> rtems_status_code console_initialize( rtems_device_major_number major, diff --git a/bsps/arm/xilinx-zynq/console/debug-console.c b/bsps/arm/xilinx-zynq/console/debug-console.c index 809fd6830d..0e9b756f30 100644 --- a/bsps/arm/xilinx-zynq/console/debug-console.c +++ b/bsps/arm/xilinx-zynq/console/debug-console.c @@ -29,7 +29,7 @@ #include <rtems/sysinit.h> #include <bsp.h> -#include <bsp/zynq-uart.h> +#include <dev/serial/zynq-uart.h> #include <bspopts.h> diff --git a/bsps/arm/xilinx-zynq/include/bsp.h b/bsps/arm/xilinx-zynq/include/bsp.h index 6c2759ce50..fde8d03130 100644 --- a/bsps/arm/xilinx-zynq/include/bsp.h +++ b/bsps/arm/xilinx-zynq/include/bsp.h @@ -54,7 +54,7 @@ #include <bsp/default-initial-extension.h> #include <bsp/start.h> -#include <bsp/zynq-uart.h> +#include <dev/serial/zynq-uart.h> #ifdef __cplusplus extern "C" { diff --git a/bsps/arm/xilinx-zynq/start/bspreset.c b/bsps/arm/xilinx-zynq/start/bspreset.c index e0c81ca2ef..3e797a137e 100644 --- a/bsps/arm/xilinx-zynq/start/bspreset.c +++ b/bsps/arm/xilinx-zynq/start/bspreset.c @@ -27,7 +27,7 @@ #include <bsp.h> #include <bsp/bootcard.h> -#include <bsp/zynq-uart.h> +#include <dev/serial/zynq-uart.h> void bsp_reset(void) { diff --git a/bsps/arm/xilinx-zynqmp/console/console-config.c b/bsps/arm/xilinx-zynqmp/console/console-config.c index a525f9c565..fb0b003c83 100644 --- a/bsps/arm/xilinx-zynqmp/console/console-config.c +++ b/bsps/arm/xilinx-zynqmp/console/console-config.c @@ -35,7 +35,7 @@ #include <rtems/sysinit.h> #include <bsp/irq.h> -#include <bsp/zynq-uart.h> +#include <dev/serial/zynq-uart.h> #include <bspopts.h> |