Disable ICANON for now. Use standardized fixed-size ring buffer inside the keyboard drivers.
This commit is contained in:
Enrico Fraccaroli
@@ -26,19 +26,18 @@ typedef struct termios {
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speed_t c_ospeed; ///< output speed
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} termios_t;
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/// @brief These flags generally control higher-level aspects of input processing than the input
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/// modes flags described in Input Modes, such as echoing, signals, and the choice of canonical
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/// or noncanonical input.
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enum {
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ISIG = 000001U, ///< Controls whether the INTR, QUIT, and SUSP characters are recognized.
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ICANON = 000002U, ///< Enables canonical input processing mode.
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ECHO = 000010U, ///< Echo input characters.
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ECHOE = 000020U, ///< If ICANON is set, the ERASE character erases the preceding character.
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ECHOK = 000040U, ///< If ICANON is set, the KILL character erases the current line.
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ECHONL = 000100U, ///< If ICANON is set, echo the NL character even if ECHO is not set.
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NOFLSH = 000200U, ///< Do not clear in/out queues when receiving INTR, QUIT, and SUSP.
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TOSTOP = 000400U, ///< Allows SIGTTOU signals generated by background processes.
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ECHOCTL = 001000U, ///< If this and ECHO are set, control characters with ‘^’ are echoed.
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ECHOKE = 004000U, ///< If ICANON is set, KILL is echoed by erasing each character on the line.
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IEXTEN = 100000U, ///< Enables implementation-defined input processing.
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};
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//These flags generally control higher-level aspects of input processing than
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// the input modes flags described in Input Modes, such as echoing, signals, and
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// the choice of canonical or noncanonical input.
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#define ISIG 0x00000080 ///< Controls whether the INTR, QUIT, and SUSP characters are recognized.
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#define ICANON 0x00000100 ///< Enables canonical input processing mode.
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#define ECHO 0x00000008 ///< Echo input characters.
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#define ECHOE 0x00000002 ///< If ICANON is set, the ERASE character erases the preceding character.
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#define ECHOK 0x00000004 ///< If ICANON is set, the KILL character erases the current line.
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#define ECHONL 0x00000010 ///< If ICANON is set, echo the NL character even if ECHO is not set.
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#define NOFLSH 0x80000000 ///< Do not clear in/out queues when receiving INTR, QUIT, and SUSP.
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#define TOSTOP 0x00400000 ///< Allows SIGTTOU signals generated by background processes.
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#define ECHOCTL 0x00000040 ///< If this and ECHO are set, control characters with ‘^’ are echoed.
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#define ECHOKE 0x00000001 ///< If ICANON is set, KILL is echoed by erasing each character on the line.
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#define IEXTEN 0x00000400 ///< Enables implementation-defined input processing.
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+41
-39
@@ -5,45 +5,47 @@
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#pragma once
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#define DECLARE_FS_RING_BUFFER(type, name, length, init) \
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typedef struct rb_##name##_t { \
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unsigned size, read, write; \
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type buffer[length]; \
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} rb_##name##_t; \
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static inline void init_rb_##name(rb_##name##_t *rb) \
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{ \
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rb->size = length; \
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rb->read = rb->write = 0; \
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memset(rb->buffer, init, sizeof(type) * length); \
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} \
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static inline void free_rb_##name(rb_##name##_t *rb) \
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{ \
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kfree(rb->buffer); \
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} \
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static inline unsigned step_rb_##name(rb_##name##_t *rb, unsigned index) \
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{ \
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return (index == (rb->size - 1)) ? 0 : index + 1; \
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} \
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static inline void push_rb_##name(rb_##name##_t *rb, type item) \
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{ \
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if (step_rb_##name(rb, rb->write) == rb->read) \
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rb->read = step_rb_##name(rb, rb->read); \
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rb->buffer[rb->write] = item; \
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rb->write = step_rb_##name(rb, rb->write); \
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} \
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static inline type pop_rb_##name(rb_##name##_t *rb) \
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{ \
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type item = init; \
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if (rb->write != rb->read) { \
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item = rb->buffer[rb->read]; \
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rb->read = step_rb_##name(rb, rb->read); \
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} \
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return item; \
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} \
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static inline void get_rb_##name(rb_##name##_t *rb, unsigned index, type *item) \
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{ \
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if (index < rb->size) \
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*item = rb->buffer[index]; \
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#define DECLARE_FIXED_SIZE_RING_BUFFER(type, name, length, init) \
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typedef struct fs_rb_##name##_t { \
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unsigned size, read, write; \
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type buffer[length]; \
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} fs_rb_##name##_t; \
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static inline void fs_rb_##name##_init(fs_rb_##name##_t *rb) \
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{ \
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rb->size = length; \
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rb->read = rb->write = 0; \
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char *dst = (char *)rb->buffer; \
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long num = sizeof(type) * length; \
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while (num--) *dst++ = (char)(init & 0xFF); \
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} \
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static inline unsigned fs_rb_##name##_step(fs_rb_##name##_t *rb, unsigned index) \
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{ \
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return (index == (rb->size - 1)) ? 0 : index + 1; \
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} \
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static inline void fs_rb_##name##_push(fs_rb_##name##_t *rb, type item) \
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{ \
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if (fs_rb_##name##_step(rb, rb->write) == rb->read) \
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rb->read = fs_rb_##name##_step(rb, rb->read); \
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rb->buffer[rb->write] = item; \
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rb->write = fs_rb_##name##_step(rb, rb->write); \
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} \
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static inline type fs_rb_##name##_empty(fs_rb_##name##_t *rb) \
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{ \
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return rb->write == rb->read; \
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} \
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static inline type fs_rb_##name##_pop(fs_rb_##name##_t *rb) \
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{ \
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type item = init; \
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if (rb->write != rb->read) { \
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item = rb->buffer[rb->read]; \
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rb->read = fs_rb_##name##_step(rb, rb->read); \
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} \
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return item; \
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} \
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static inline void fs_rb_##name##_get(fs_rb_##name##_t *rb, unsigned index, type *item) \
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{ \
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if (index < rb->size) \
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*item = rb->buffer[index]; \
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}
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#ifdef __KERNEL__
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