| /linux-6.1.9/drivers/tty/serial/8250/ |
| D | 8250_dwlib.c | 138 static void dw8250_rs485_set_addr(struct uart_port *p, struct serial_rs485 *rs485, in dw8250_rs485_set_addr() argument
143 if (rs485->flags & SER_RS485_ADDRB) { in dw8250_rs485_set_addr()
148 if (rs485->flags & SER_RS485_ADDR_RECV) { in dw8250_rs485_set_addr()
149 u32 delta = p->rs485.flags ^ rs485->flags; in dw8250_rs485_set_addr()
155 if (unlikely(&p->rs485 == rs485)) in dw8250_rs485_set_addr()
156 delta = rs485->flags; in dw8250_rs485_set_addr()
159 (p->rs485.addr_recv != rs485->addr_recv)) in dw8250_rs485_set_addr()
160 dw8250_update_rar(p, rs485->addr_recv); in dw8250_rs485_set_addr()
165 if (rs485->flags & SER_RS485_ADDR_DEST) { in dw8250_rs485_set_addr()
171 dw8250_writel_ext(p, DW_UART_TAR, rs485->addr_dest); in dw8250_rs485_set_addr()
[all …]
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| D | 8250_fintek.c | 195 struct serial_rs485 *rs485) in fintek_8250_rs485_config() argument
204 if (rs485->flags & SER_RS485_ENABLED) { in fintek_8250_rs485_config()
206 if (!(rs485->flags & SER_RS485_RTS_ON_SEND) == in fintek_8250_rs485_config()
207 !(rs485->flags & SER_RS485_RTS_AFTER_SEND)) in fintek_8250_rs485_config()
212 if (rs485->delay_rts_before_send) { in fintek_8250_rs485_config()
213 rs485->delay_rts_before_send = 1; in fintek_8250_rs485_config()
217 if (rs485->delay_rts_after_send) { in fintek_8250_rs485_config()
218 rs485->delay_rts_after_send = 1; in fintek_8250_rs485_config()
222 if (rs485->flags & SER_RS485_RTS_ON_SEND) in fintek_8250_rs485_config()
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| D | 8250_lpc18xx.c | 36 struct serial_rs485 *rs485) in lpc18xx_rs485_config() argument
43 if (rs485->flags & SER_RS485_ENABLED) { in lpc18xx_rs485_config()
47 if (rs485->flags & SER_RS485_RTS_ON_SEND) in lpc18xx_rs485_config()
51 if (rs485->delay_rts_after_send) { in lpc18xx_rs485_config()
53 rs485_dly_reg = DIV_ROUND_UP(rs485->delay_rts_after_send in lpc18xx_rs485_config()
60 rs485->delay_rts_after_send = (rs485_dly_reg * MSEC_PER_SEC) in lpc18xx_rs485_config()
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| D | 8250_bcm2835aux.c | 54 if (!(up->port.rs485.flags & SER_RS485_RX_DURING_TX)) { in bcm2835aux_rs485_start_tx()
65 if (up->port.rs485.flags & SER_RS485_RTS_ON_SEND) in bcm2835aux_rs485_start_tx()
73 if (up->port.rs485.flags & SER_RS485_RTS_AFTER_SEND) in bcm2835aux_rs485_stop_tx()
78 if (!(up->port.rs485.flags & SER_RS485_RX_DURING_TX)) { in bcm2835aux_rs485_stop_tx()
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| D | 8250_exar.c | 122 struct serial_rs485 *rs485);
420 struct serial_rs485 *rs485) in generic_rs485_config() argument
422 bool is_rs485 = !!(rs485->flags & SER_RS485_ENABLED); in generic_rs485_config()
452 struct serial_rs485 *rs485) in iot2040_rs485_config() argument
454 bool is_rs485 = !!(rs485->flags & SER_RS485_ENABLED); in iot2040_rs485_config()
460 if (rs485->flags & SER_RS485_RX_DURING_TX) in iot2040_rs485_config()
465 if (rs485->flags & SER_RS485_TERMINATE_BUS) in iot2040_rs485_config()
481 return generic_rs485_config(port, termios, rs485); in iot2040_rs485_config()
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| /linux-6.1.9/Documentation/devicetree/bindings/serial/ |
| D | rs485.yaml | 4 $id: http://devicetree.org/schemas/serial/rs485.yaml#
17 rs485-rts-delay:
32 rs485-rts-active-low:
36 rs485-rx-active-high:
41 linux,rs485-enabled-at-boot-time:
42 description: enables the rs485 feature at boot time. It can be disabled
46 rs485-rx-during-tx:
50 rs485-term-gpios:
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| D | 8250_omap.yaml | 14 - $ref: /schemas/serial/rs485.yaml#
73 rs485-rts-delay: true
74 rs485-rts-active-low: true
75 rs485-rx-during-tx: true
76 rs485-rts-active-high: true
77 linux,rs485-enabled-at-boot-time: true
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| D | st,stm32-uart.yaml | 63 rs485-rts-delay: true
64 rs485-rts-active-low: true
65 linux,rs485-enabled-at-boot-time: true
66 rs485-rx-during-tx: true
81 - $ref: rs485.yaml#
130 rs485-rts-active-low;
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| D | fsl-imx-uart.yaml | 14 - $ref: "rs485.yaml"
88 rs485-rts-delay: true
89 rs485-rts-active-low: true
90 rs485-rx-during-tx: true
91 linux,rs485-enabled-at-boot-time: true
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| D | fsl-lpuart.yaml | 13 - $ref: "rs485.yaml"
64 rs485-rts-active-low: true
65 linux,rs485-enabled-at-boot-time: true
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| D | rs485.txt | 1 See rs485.yaml
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| /linux-6.1.9/arch/arm/boot/dts/ |
| D | aks-cdu.dts | 32 linux,rs485-enabled-at-boot-time;
33 rs485-rts-delay = <0 0>;
38 linux,rs485-enabled-at-boot-time;
39 rs485-rts-delay = <0 0>;
44 linux,rs485-enabled-at-boot-time;
45 rs485-rts-delay = <0 0>;
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| D | imx6qdl-dhcom-drc02.dtsi | 30 rs485-rx-en-hog {
33 line-name = "rs485-rx-en";
92 linux,rs485-enabled-at-boot-time;
122 * P: uart5 rs485-tx-en
123 * Q: uart5 rs485-rx-en
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| D | imx28-duckbill-2-485.dts | 174 rs485-red {
175 label = "duckbill:red:rs485";
179 rs485-green {
180 label = "duckbill:green:rs485";
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| D | am335x-nano.dts | 171 rs485-rts-active-high;
172 rs485-rx-during-tx;
173 rs485-rts-delay = <1 1>;
174 linux,rs485-enabled-at-boot-time;
182 rs485-rts-active-high;
183 rs485-rts-delay = <1 1>;
184 linux,rs485-enabled-at-boot-time;
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| D | stm32mp15xx-dhcom-drc02.dtsi | 36 rs485-rx-en-hog {
40 line-name = "rs485-rx-en";
145 linux,rs485-enabled-at-boot-time;
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| D | animeo_ip.dts | 59 linux,rs485-enabled-at-boot-time;
65 linux,rs485-enabled-at-boot-time;
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| /linux-6.1.9/drivers/tty/serial/ |
| D | serial_core.c | 164 if (old != port->mctrl && !(port->rs485.flags & SER_RS485_ENABLED)) in uart_update_mctrl()
1289 static int uart_check_rs485_flags(struct uart_port *port, struct serial_rs485 *rs485) in uart_check_rs485_flags() argument
1291 u32 flags = rs485->flags; in uart_check_rs485_flags()
1304 if (!(rs485->flags & SER_RS485_ADDRB) && in uart_check_rs485_flags()
1305 (rs485->flags & (SER_RS485_ADDR_RECV|SER_RS485_ADDR_DEST))) in uart_check_rs485_flags()
1309 if (!(rs485->flags & SER_RS485_ADDR_RECV) && rs485->addr_recv) in uart_check_rs485_flags()
1311 if (!(rs485->flags & SER_RS485_ADDR_DEST) && rs485->addr_dest) in uart_check_rs485_flags()
1318 struct serial_rs485 *rs485) in uart_sanitize_serial_rs485_delays() argument
1321 if (rs485->delay_rts_before_send) { in uart_sanitize_serial_rs485_delays()
1326 rs485->delay_rts_before_send = 0; in uart_sanitize_serial_rs485_delays()
[all …]
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| D | omap-serial.c | 290 if (port->rs485.flags & SER_RS485_ENABLED) { in serial_omap_stop_tx()
301 res = (port->rs485.flags & SER_RS485_RTS_AFTER_SEND) ? in serial_omap_stop_tx()
304 if (port->rs485.delay_rts_after_send > 0) in serial_omap_stop_tx()
306 port->rs485.delay_rts_after_send); in serial_omap_stop_tx()
343 if ((up->port.rs485.flags & SER_RS485_ENABLED) && in serial_omap_put_char()
344 !(up->port.rs485.flags & SER_RS485_RX_DURING_TX)) in serial_omap_put_char()
394 if (port->rs485.flags & SER_RS485_ENABLED) { in serial_omap_start_tx()
400 res = (port->rs485.flags & SER_RS485_RTS_ON_SEND) ? 1 : 0; in serial_omap_start_tx()
403 if (port->rs485.delay_rts_before_send > 0) in serial_omap_start_tx()
404 mdelay(port->rs485.delay_rts_before_send); in serial_omap_start_tx()
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| D | max310x.c | 1022 delay = (one->port.rs485.delay_rts_before_send << 4) | in max310x_rs_proc()
1023 one->port.rs485.delay_rts_after_send; in max310x_rs_proc()
1026 if (one->port.rs485.flags & SER_RS485_ENABLED) { in max310x_rs_proc()
1029 if (!(one->port.rs485.flags & SER_RS485_RX_DURING_TX)) in max310x_rs_proc()
1040 struct serial_rs485 *rs485) in max310x_rs485_config() argument
1044 if ((rs485->delay_rts_before_send > 0x0f) || in max310x_rs485_config()
1045 (rs485->delay_rts_after_send > 0x0f)) in max310x_rs485_config()
1048 port->rs485 = *rs485; in max310x_rs485_config()
1073 val = (clamp(port->rs485.delay_rts_before_send, 0U, 15U) << 4) | in max310x_startup()
1074 clamp(port->rs485.delay_rts_after_send, 0U, 15U); in max310x_startup()
[all …]
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| /linux-6.1.9/arch/arm64/boot/dts/freescale/ |
| D | imx8mp-verdin-dev.dtsi | 38 linux,rs485-enabled-at-boot-time;
39 rs485-rts-active-low;
40 rs485-rx-during-tx;
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| D | imx8mm-verdin-dev.dtsi | 60 linux,rs485-enabled-at-boot-time;
61 rs485-rts-active-low;
62 rs485-rx-during-tx;
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| D | Makefile | 123 imx8mm-venice-gw72xx-0x-rs485-dtbs := imx8mm-venice-gw72xx-0x.dtb imx8mm-venice-gw72xx-0x-rs485.dtbo
127 imx8mm-venice-gw73xx-0x-rs485-dtbs := imx8mm-venice-gw73xx-0x.dtb imx8mm-venice-gw73xx-0x-rs485.dtbo
132 dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw72xx-0x-rs485.dtb
136 dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw73xx-0x-rs485.dtb
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| /linux-6.1.9/arch/x86/platform/ts5500/ |
| D | ts5500.c | 77 bool rs485; member
135 sbc->rs485 = tmp & TS5500_RS485; in ts5500_detect_config()
188 TS5500_ATTR_BOOL(rs485);
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| /linux-6.1.9/Documentation/driver-api/serial/ |
| D | index.rst | 20 serial-rs485
|