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path: root/drivers/usb/serial/io_ionsp.h
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Diffstat (limited to 'drivers/usb/serial/io_ionsp.h')
-rw-r--r--drivers/usb/serial/io_ionsp.h95
1 files changed, 48 insertions, 47 deletions
diff --git a/drivers/usb/serial/io_ionsp.h b/drivers/usb/serial/io_ionsp.h
index 092e03d2dfc4..5cc591bae54d 100644
--- a/drivers/usb/serial/io_ionsp.h
+++ b/drivers/usb/serial/io_ionsp.h
@@ -89,10 +89,10 @@ All 16-bit fields are sent in little-endian (Intel) format.
89// 89//
90 90
91struct int_status_pkt { 91struct int_status_pkt {
92 __u16 RxBytesAvail; // Additional bytes available to 92 __u16 RxBytesAvail; // Additional bytes available to
93 // be read from Bulk IN pipe 93 // be read from Bulk IN pipe
94 __u16 TxCredits[ MAX_RS232_PORTS ]; // Additional space available in 94 __u16 TxCredits[MAX_RS232_PORTS]; // Additional space available in
95 // given port's TxBuffer 95 // given port's TxBuffer
96}; 96};
97 97
98 98
@@ -115,24 +115,24 @@ struct int_status_pkt {
115#define IOSP_CMD_STAT_BIT 0x80 // If set, this is command/status header 115#define IOSP_CMD_STAT_BIT 0x80 // If set, this is command/status header
116 116
117#define IS_CMD_STAT_HDR(Byte1) ((Byte1) & IOSP_CMD_STAT_BIT) 117#define IS_CMD_STAT_HDR(Byte1) ((Byte1) & IOSP_CMD_STAT_BIT)
118#define IS_DATA_HDR(Byte1) (! IS_CMD_STAT_HDR(Byte1)) 118#define IS_DATA_HDR(Byte1) (!IS_CMD_STAT_HDR(Byte1))
119 119
120#define IOSP_GET_HDR_PORT(Byte1) ((__u8) ((Byte1) & IOSP_PORT_MASK)) 120#define IOSP_GET_HDR_PORT(Byte1) ((__u8) ((Byte1) & IOSP_PORT_MASK))
121#define IOSP_GET_HDR_DATA_LEN(Byte1, Byte2) ((__u16) ( ((__u16)((Byte1) & 0x78)) << 5) | (Byte2)) 121#define IOSP_GET_HDR_DATA_LEN(Byte1, Byte2) ((__u16) (((__u16)((Byte1) & 0x78)) << 5) | (Byte2))
122#define IOSP_GET_STATUS_CODE(Byte1) ((__u8) (((Byte1) & 0x78) >> 3)) 122#define IOSP_GET_STATUS_CODE(Byte1) ((__u8) (((Byte1) & 0x78) >> 3))
123 123
124 124
125// 125//
126// These macros build the 1st and 2nd bytes for a data header 126// These macros build the 1st and 2nd bytes for a data header
127// 127//
128#define IOSP_BUILD_DATA_HDR1(Port, Len) ((__u8) (((Port) | ((__u8) (((__u16) (Len)) >> 5) & 0x78 )))) 128#define IOSP_BUILD_DATA_HDR1(Port, Len) ((__u8) (((Port) | ((__u8) (((__u16) (Len)) >> 5) & 0x78))))
129#define IOSP_BUILD_DATA_HDR2(Port, Len) ((__u8) (Len)) 129#define IOSP_BUILD_DATA_HDR2(Port, Len) ((__u8) (Len))
130 130
131 131
132// 132//
133// These macros build the 1st and 2nd bytes for a command header 133// These macros build the 1st and 2nd bytes for a command header
134// 134//
135#define IOSP_BUILD_CMD_HDR1(Port, Cmd) ((__u8) ( IOSP_CMD_STAT_BIT | (Port) | ((__u8) ((Cmd) << 3)) )) 135#define IOSP_BUILD_CMD_HDR1(Port, Cmd) ((__u8) (IOSP_CMD_STAT_BIT | (Port) | ((__u8) ((Cmd) << 3))))
136 136
137 137
138//-------------------------------------------------------------- 138//--------------------------------------------------------------
@@ -194,24 +194,25 @@ struct int_status_pkt {
194// Define macros to simplify building of IOSP cmds 194// Define macros to simplify building of IOSP cmds
195// 195//
196 196
197#define MAKE_CMD_WRITE_REG(ppBuf, pLen, Port, Reg, Val) \ 197#define MAKE_CMD_WRITE_REG(ppBuf, pLen, Port, Reg, Val) \
198 do { \ 198do { \
199 (*(ppBuf))[0] = IOSP_BUILD_CMD_HDR1( (Port), IOSP_WRITE_UART_REG(Reg) ); \ 199 (*(ppBuf))[0] = IOSP_BUILD_CMD_HDR1((Port), \
200 (*(ppBuf))[1] = (Val); \ 200 IOSP_WRITE_UART_REG(Reg)); \
201 \ 201 (*(ppBuf))[1] = (Val); \
202 *ppBuf += 2; \ 202 \
203 *pLen += 2; \ 203 *ppBuf += 2; \
204 } while (0) 204 *pLen += 2; \
205} while (0)
205 206
206#define MAKE_CMD_EXT_CMD(ppBuf, pLen, Port, ExtCmd, Param) \ 207#define MAKE_CMD_EXT_CMD(ppBuf, pLen, Port, ExtCmd, Param) \
207 do { \ 208do { \
208 (*(ppBuf))[0] = IOSP_BUILD_CMD_HDR1( (Port), IOSP_EXT_CMD ); \ 209 (*(ppBuf))[0] = IOSP_BUILD_CMD_HDR1((Port), IOSP_EXT_CMD); \
209 (*(ppBuf))[1] = (ExtCmd); \ 210 (*(ppBuf))[1] = (ExtCmd); \
210 (*(ppBuf))[2] = (Param); \ 211 (*(ppBuf))[2] = (Param); \
211 \ 212 \
212 *ppBuf += 3; \ 213 *ppBuf += 3; \
213 *pLen += 3; \ 214 *pLen += 3; \
214 } while (0) 215} while (0)
215 216
216 217
217 218
@@ -310,16 +311,16 @@ struct int_status_pkt {
310// 311//
311// IOSP_CMD_RX_CHECK_REQ 312// IOSP_CMD_RX_CHECK_REQ
312// 313//
313// This command is used to assist in the implementation of the 314// This command is used to assist in the implementation of the
314// IOCTL_SERIAL_PURGE Windows IOCTL. 315// IOCTL_SERIAL_PURGE Windows IOCTL.
315// This IOSP command tries to place a marker at the end of the RX 316// This IOSP command tries to place a marker at the end of the RX
316// queue in the Edgeport. If the Edgeport RX queue is full then 317// queue in the Edgeport. If the Edgeport RX queue is full then
317// the Check will be discarded. 318// the Check will be discarded.
318// It is up to the device driver to timeout waiting for the 319// It is up to the device driver to timeout waiting for the
319// RX_CHECK_RSP. If a RX_CHECK_RSP is received, the driver is 320// RX_CHECK_RSP. If a RX_CHECK_RSP is received, the driver is
320// sure that all data has been received from the edgeport and 321// sure that all data has been received from the edgeport and
321// may now purge any internal RX buffers. 322// may now purge any internal RX buffers.
322// Note tat the sequence numbers may be used to detect lost 323// Note tat the sequence numbers may be used to detect lost
323// CHECK_REQs. 324// CHECK_REQs.
324 325
325// Example for Port 0 326// Example for Port 0
@@ -341,7 +342,7 @@ struct int_status_pkt {
341// 342//
342// 1ssssPPP P1P1P1P1 [ P2P2P2P2P2 ]... 343// 1ssssPPP P1P1P1P1 [ P2P2P2P2P2 ]...
343// 344//
344// ssss: 00-07 2-byte status. ssss identifies which UART register 345// ssss: 00-07 2-byte status. ssss identifies which UART register
345// has changed value, and the new value is in P1. 346// has changed value, and the new value is in P1.
346// Note that the ssss values do not correspond to the 347// Note that the ssss values do not correspond to the
347// 16554 register numbers given in 16554.H. Instead, 348// 16554 register numbers given in 16554.H. Instead,
@@ -383,14 +384,14 @@ struct int_status_pkt {
383// returns this in order to report 384// returns this in order to report
384// changes in modem status lines 385// changes in modem status lines
385// (CTS, DSR, RI, CD) 386// (CTS, DSR, RI, CD)
386// 387//
387 388
388// 0x02 // Available for future expansion 389// 0x02 // Available for future expansion
389// 0x03 // 390// 0x03 //
390// 0x04 // 391// 0x04 //
391// 0x05 // 392// 0x05 //
392// 0x06 // 393// 0x06 //
393// 0x07 // 394// 0x07 //
394 395
395 396
396/**************************************************** 397/****************************************************
@@ -400,7 +401,7 @@ struct int_status_pkt {
400#define IOSP_STATUS_LSR_DATA 0x08 // P1 is new value of LSR register (same as STATUS_LSR) 401#define IOSP_STATUS_LSR_DATA 0x08 // P1 is new value of LSR register (same as STATUS_LSR)
401 402
402// P2 is errored character read from 403// P2 is errored character read from
403// RxFIFO after LSR reported an error. 404// RxFIFO after LSR reported an error.
404 405
405#define IOSP_EXT_STATUS 0x09 // P1 is status/response code, param in P2. 406#define IOSP_EXT_STATUS 0x09 // P1 is status/response code, param in P2.
406 407
@@ -408,7 +409,7 @@ struct int_status_pkt {
408// Response Codes (P1 values) for 3-byte status messages 409// Response Codes (P1 values) for 3-byte status messages
409 410
410#define IOSP_EXT_STATUS_CHASE_RSP 0 // Reply to CHASE_PORT cmd. P2 is outcome: 411#define IOSP_EXT_STATUS_CHASE_RSP 0 // Reply to CHASE_PORT cmd. P2 is outcome:
411#define IOSP_EXT_STATUS_CHASE_PASS 0 // P2 = 0: All Tx data drained successfully 412#define IOSP_EXT_STATUS_CHASE_PASS 0 // P2 = 0: All Tx data drained successfully
412#define IOSP_EXT_STATUS_CHASE_FAIL 1 // P2 = 1: Timed out (stuck due to flow 413#define IOSP_EXT_STATUS_CHASE_FAIL 1 // P2 = 1: Timed out (stuck due to flow
413 414
414// control from remote device). 415// control from remote device).
@@ -446,9 +447,9 @@ struct int_status_pkt {
446// Macros to parse status messages 447// Macros to parse status messages
447// 448//
448 449
449#define IOSP_GET_STATUS_LEN(code) ( (code) < 8 ? 2 : ((code) < 0x0A ? 3 : 4) ) 450#define IOSP_GET_STATUS_LEN(code) ((code) < 8 ? 2 : ((code) < 0x0A ? 3 : 4))
450 451
451#define IOSP_STATUS_IS_2BYTE(code) ( (code) < 0x08 ) 452#define IOSP_STATUS_IS_2BYTE(code) ((code) < 0x08)
452#define IOSP_STATUS_IS_3BYTE(code) ( ((code) >= 0x08) && ((code) <= 0x0B) ) 453#define IOSP_STATUS_IS_3BYTE(code) (((code) >= 0x08) && ((code) <= 0x0B))
453#define IOSP_STATUS_IS_4BYTE(code) ( ((code) >= 0x0C) && ((code) <= 0x0D) ) 454#define IOSP_STATUS_IS_4BYTE(code) (((code) >= 0x0C) && ((code) <= 0x0D))
454 455
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-17 12:27:28 -0500