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Posted to commits@nuttx.apache.org by ag...@apache.org on 2021/01/04 08:20:04 UTC
[incubator-nuttx] branch master updated: xtensa/esp32: Fix ESP32
serial UART tx ready check error
This is an automated email from the ASF dual-hosted git repository.
aguettouche pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-nuttx.git
The following commit(s) were added to refs/heads/master by this push:
new fadae0b xtensa/esp32: Fix ESP32 serial UART tx ready check error
fadae0b is described below
commit fadae0bf393ce45416b6c75e5d3506f90cba88e9
Author: Dong Heng <do...@espressif.com>
AuthorDate: Mon Jan 4 10:55:50 2021 +0800
xtensa/esp32: Fix ESP32 serial UART tx ready check error
---
arch/xtensa/src/esp32/esp32_serial.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/arch/xtensa/src/esp32/esp32_serial.c b/arch/xtensa/src/esp32/esp32_serial.c
index ddaa6ec..80b0acc 100644
--- a/arch/xtensa/src/esp32/esp32_serial.c
+++ b/arch/xtensa/src/esp32/esp32_serial.c
@@ -1154,10 +1154,13 @@ static void esp32_txint(struct uart_dev_s *dev, bool enable)
static bool esp32_txready(struct uart_dev_s *dev)
{
+ uint32_t txcnt;
struct esp32_dev_s *priv = (struct esp32_dev_s *)dev->priv;
- return ((esp32_serialin(priv, UART_STATUS_OFFSET) & UART_TXFIFO_CNT_M) <
- 0x7f);
+ txcnt = (esp32_serialin(priv, UART_STATUS_OFFSET) >> UART_TXFIFO_CNT_S) &
+ UART_TXFIFO_CNT_V;
+
+ return txcnt < 0x7f;
}
/****************************************************************************