Lines Matching +full:write +full:- +full:1 +full:- +full:bps
1 /* SPDX-License-Identifier: GPL-2.0 */
26 int clk_mode; /* May be 1, 16, 32, or 64. */
34 u8 regs[ZS_NUM_REGS]; /* Channel write registers. */
38 * Per-SCC state for locking and the interrupt handler.
53 #define ZS_BPS_TO_BRG(bps, freq) ((((freq) + (bps)) / (2 * (bps))) - 2) argument
59 /* Write Register 0 (Command) */
61 #define R1 1
90 /* Write Register 1 (Tx/Rx/Ext Int Enable and WAIT/DMA Commands) */
105 /* Write Register 2 (Interrupt Vector) */
107 /* Write Register 3 (Receive Parameters and Control) */
120 /* Write Register 4 (Transmit/Receive Miscellaneous Parameters and Modes) */
125 #define SB1 0x4 /* 1 stop bit/char */
141 /* Write Register 5 (Transmit Parameters and Controls) */
144 #define SDLC_CRC 0x4 /* SDLC/CRC-16 */
154 /* Write Register 6 (Sync bits 0-7/SDLC Address Field) */
156 /* Write Register 7 (Sync bits 8-15/SDLC 01111110) */
158 /* Write Register 8 (Transmit Buffer) */
160 /* Write Register 9 (Master Interrupt Control) */
161 #define VIS 1 /* Vector Includes Status */
167 #define NORESET 0 /* No reset on write to R9 */
172 /* Write Register 10 (Miscellaneous Transmitter/Receiver Control Bits) */
173 #define BIT6 1 /* 6 bit/8bit sync */
180 #define FM1 0x40 /* FM1 (transition = 1) */
184 /* Write Register 11 (Clock Mode Control) */
186 #define TRxCTC 1 /* TRxC = Transmit clock */
200 /* Write Register 12 (Lower Byte of Baud Rate Generator Time Constant) */
202 /* Write Register 13 (Upper Byte of Baud Rate Generator Time Constant) */
204 /* Write Register 14 (Miscellaneous Control Bits) */
205 #define BRENABL 1 /* Baud rate generator enable */
218 /* Write Register 15 (External/Status Interrupt Control) */
219 #define WR7P_EN 1 /* WR7 Prime SDLC Feature Enable */
238 /* Read Register 1 (Special Receive Condition Status) */
247 #define RES18 0xe /* 1/8 */
255 /* Read Register 2 (Interrupt Vector (WR2) -- channel A). */
257 /* Read Register 2 (Modified Interrupt Vector -- channel B). */
259 /* Read Register 3 (Interrupt Pending Bits -- channel A only). */