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video: driver: state handling code movement

Sfoglia il codice sorgente 
state handling changes were spread across multiple files.
So re-arrange all state related handling changes into
msm_vidc_state.h/.c file.

Change-Id: I3826daa678d1e2b5ce7e74380d465e70b1b824c6
Signed-off-by: Govindaraj Rajagopal <quic_grajagop@quicinc.com>
This commit is contained in:
Govindaraj Rajagopal
2023-01-30 10:53:20 +05:30
parent 0884f5a04a
commit c175e36454
5 ha cambiato i file con 321 aggiunte e 325 eliminazioni
Scarica il file Patch Scarica il file Diff Expand all files Collapse all files

19
driver/vidc/inc/msm_vidc_driver.h
Vedi File

@@ -359,17 +359,6 @@ static inline bool is_enc_slice_delivery_mode(struct msm_vidc_inst *inst)
inst->capabilities->cap[DELIVERY_MODE].value);
}
static inline bool is_state(struct msm_vidc_inst *inst, enum msm_vidc_state state)
{
return inst->state == state;
}
static inline bool is_sub_state(struct msm_vidc_inst *inst,
enum msm_vidc_sub_state sub_state)
{
return (inst->sub_state & sub_state);
}
const char *cap_name(enum msm_vidc_inst_capability_type cap_id);
const char *v4l2_pixelfmt_name(struct msm_vidc_inst *inst, u32 pixelfmt);
const char *v4l2_type_name(u32 port);
@@ -400,12 +389,6 @@ u32 v4l2_matrix_coeff_from_driver(struct msm_vidc_inst *inst,
int v4l2_type_to_driver_port(struct msm_vidc_inst *inst, u32 type,
const char *func);
const char *allow_name(enum msm_vidc_allow allow);
const char *state_name(enum msm_vidc_state state);
int msm_vidc_change_state(struct msm_vidc_inst *inst,
enum msm_vidc_state request_state, const char *func);
int msm_vidc_change_sub_state(struct msm_vidc_inst *inst,
enum msm_vidc_sub_state clear_sub_state,
enum msm_vidc_sub_state set_sub_state, const char *func);
int msm_vidc_create_internal_buffer(struct msm_vidc_inst *inst,
enum msm_vidc_buffer_type buffer_type, u32 index);
int msm_vidc_get_internal_buffers(struct msm_vidc_inst *inst,
@@ -436,8 +419,6 @@ int msm_vidc_change_core_state(struct msm_vidc_core *core,
int msm_vidc_change_core_sub_state(struct msm_vidc_core *core,
enum msm_vidc_core_sub_state clear_sub_states,
enum msm_vidc_core_sub_state set_sub_states, const char *func);
int prepare_sub_state_name(enum msm_vidc_sub_state sub_state,
char *buf, u32 size);
int msm_vidc_core_init(struct msm_vidc_core *core);
int msm_vidc_core_init_wait(struct msm_vidc_core *core);
int msm_vidc_core_deinit(struct msm_vidc_core *core, bool force);

28
driver/vidc/inc/msm_vidc_inst.h
Vedi File

@@ -14,15 +14,6 @@
struct msm_vidc_inst;
#define FOREACH_STATE(STATE) { \
STATE(OPEN) \
STATE(INPUT_STREAMING) \
STATE(OUTPUT_STREAMING) \
STATE(STREAMING) \
STATE(CLOSE) \
STATE(ERROR) \
}
#define call_session_op(c, op, ...) \
(((c) && (c)->session_ops && (c)->session_ops->op) ? \
((c)->session_ops->op(__VA_ARGS__)) : 0)
@@ -68,25 +59,6 @@ struct msm_vidc_buffers_info {
struct msm_vidc_buffers partial_data;
};
enum msm_vidc_state FOREACH_STATE(GENERATE_MSM_VIDC_ENUM);
#define MSM_VIDC_SUB_STATE_NONE 0
#define MSM_VIDC_MAX_SUB_STATES 6
/*
* max value of inst->sub_state if all
* the 6 valid bits are set i.e 111111==>63
*/
#define MSM_VIDC_MAX_SUB_STATE_VALUE ((1 << MSM_VIDC_MAX_SUB_STATES) - 1)
enum msm_vidc_sub_state {
MSM_VIDC_DRAIN = BIT(0),
MSM_VIDC_DRC = BIT(1),
MSM_VIDC_DRAIN_LAST_BUFFER = BIT(2),
MSM_VIDC_DRC_LAST_BUFFER = BIT(3),
MSM_VIDC_INPUT_PAUSE = BIT(4),
MSM_VIDC_OUTPUT_PAUSE = BIT(5),
};
struct buf_queue {
struct vb2_queue *vb2q;
};

43
driver/vidc/inc/msm_vidc_state.h
Vedi File

@@ -10,8 +10,6 @@
#include "msm_vidc_internal.h"
struct msm_vidc_core;
enum msm_vidc_state;
enum msm_vidc_sub_state;
#define FOREACH_CORE_STATE(CORE_STATE) { \
CORE_STATE(CORE_DEINIT) \
@@ -50,6 +48,34 @@ enum msm_vidc_core_event_type {
CORE_EVENT_UPDATE_SUB_STATE = BIT(1),
};
#define FOREACH_STATE(STATE) { \
STATE(OPEN) \
STATE(INPUT_STREAMING) \
STATE(OUTPUT_STREAMING) \
STATE(STREAMING) \
STATE(CLOSE) \
STATE(ERROR) \
}
enum msm_vidc_state FOREACH_STATE(GENERATE_MSM_VIDC_ENUM);
#define MSM_VIDC_SUB_STATE_NONE 0
#define MSM_VIDC_MAX_SUB_STATES 6
/*
* max value of inst->sub_state if all
* the 6 valid bits are set i.e 111111==>63
*/
#define MSM_VIDC_MAX_SUB_STATE_VALUE ((1 << MSM_VIDC_MAX_SUB_STATES) - 1)
enum msm_vidc_sub_state {
MSM_VIDC_DRAIN = BIT(0),
MSM_VIDC_DRC = BIT(1),
MSM_VIDC_DRAIN_LAST_BUFFER = BIT(2),
MSM_VIDC_DRC_LAST_BUFFER = BIT(3),
MSM_VIDC_INPUT_PAUSE = BIT(4),
MSM_VIDC_OUTPUT_PAUSE = BIT(5),
};
enum msm_vidc_event FOREACH_EVENT(GENERATE_MSM_VIDC_ENUM);
/* core statemachine functions */
@@ -67,8 +93,15 @@ const char *core_sub_state_name(enum msm_vidc_core_sub_state sub_state);
/* inst statemachine functions */
int msm_vidc_update_state(struct msm_vidc_inst *inst,
enum msm_vidc_state request_state, const char *func);
enum msm_vidc_allow msm_vidc_allow_state_change(
struct msm_vidc_inst *inst,
enum msm_vidc_state req_state);
int msm_vidc_change_state(struct msm_vidc_inst *inst,
enum msm_vidc_state request_state, const char *func);
int msm_vidc_change_sub_state(struct msm_vidc_inst *inst,
enum msm_vidc_sub_state clear_sub_state,
enum msm_vidc_sub_state set_sub_state, const char *func);
const char *state_name(enum msm_vidc_state state);
const char *sub_state_name(enum msm_vidc_sub_state sub_state);
bool is_state(struct msm_vidc_inst *inst, enum msm_vidc_state state);
bool is_sub_state(struct msm_vidc_inst *inst,
enum msm_vidc_sub_state sub_state);
#endif // _MSM_VIDC_STATE_H_

137
driver/vidc/src/msm_vidc_driver.c
Vedi File

@@ -99,59 +99,6 @@ exit:
return name;
}
/* do not modify the state names as it is used in test scripts */
static const char * const state_name_arr[] =
FOREACH_STATE(GENERATE_STRING);
const char *state_name(enum msm_vidc_state state)
{
const char *name = "UNKNOWN STATE";
if (state >= ARRAY_SIZE(state_name_arr))
goto exit;
name = state_name_arr[state];
exit:
return name;
}
const char *sub_state_name(enum msm_vidc_sub_state sub_state)
{
switch (sub_state) {
case MSM_VIDC_DRAIN: return "DRAIN ";
case MSM_VIDC_DRC: return "DRC ";
case MSM_VIDC_DRAIN_LAST_BUFFER: return "DRAIN_LAST_BUFFER ";
case MSM_VIDC_DRC_LAST_BUFFER: return "DRC_LAST_BUFFER ";
case MSM_VIDC_INPUT_PAUSE: return "INPUT_PAUSE ";
case MSM_VIDC_OUTPUT_PAUSE: return "OUTPUT_PAUSE ";
}
return "SUB_STATE_NONE";
}
int prepare_sub_state_name(enum msm_vidc_sub_state sub_state,
char *buf, u32 size)
{
int i = 0;
if (!buf || !size)
return -EINVAL;
strscpy(buf, "\0", size);
if (sub_state == MSM_VIDC_SUB_STATE_NONE) {
strscpy(buf, "SUB_STATE_NONE", size);
return 0;
}
for (i = 0; i < MSM_VIDC_MAX_SUB_STATES; i++) {
if (sub_state & BIT(i))
strlcat(buf, sub_state_name(BIT(i)), size);
}
return 0;
}
const char *v4l2_type_name(u32 port)
{
switch (port) {
@@ -1013,90 +960,6 @@ int signal_session_msg_receipt(struct msm_vidc_inst *inst,
return 0;
}
int msm_vidc_change_state(struct msm_vidc_inst *inst,
enum msm_vidc_state request_state, const char *func)
{
enum msm_vidc_allow allow;
int rc;
if (!inst) {
d_vpr_e("%s: invalid params\n", __func__);
return -EINVAL;
}
if (is_session_error(inst)) {
i_vpr_h(inst,
"%s: inst is in bad state, can not change state to %s\n",
func, state_name(request_state));
return 0;
}
/* current and requested state is same */
if (inst->state == request_state)
return 0;
/* check if requested state movement is allowed */
allow = msm_vidc_allow_state_change(inst, request_state);
if (allow != MSM_VIDC_ALLOW) {
i_vpr_e(inst, "%s: %s state change %s -> %s\n", func,
allow_name(allow), state_name(inst->state),
state_name(request_state));
return (allow == MSM_VIDC_DISALLOW ? -EINVAL : 0);
}
/* go ahead and update inst state */
rc = msm_vidc_update_state(inst, request_state, func);
if (rc)
return rc;
return 0;
}
int msm_vidc_change_sub_state(struct msm_vidc_inst *inst,
enum msm_vidc_sub_state clear_sub_state,
enum msm_vidc_sub_state set_sub_state, const char *func)
{
enum msm_vidc_sub_state prev_sub_state;
int rc = 0;
if (!inst) {
d_vpr_e("%s: invalid params\n", __func__);
return -EINVAL;
}
if (is_session_error(inst)) {
i_vpr_h(inst,
"%s: inst is in bad state, can not change sub state\n", func);
return 0;
}
if (!clear_sub_state && !set_sub_state)
return 0;
if ((clear_sub_state & set_sub_state) ||
(set_sub_state > MSM_VIDC_MAX_SUB_STATE_VALUE) ||
(clear_sub_state > MSM_VIDC_MAX_SUB_STATE_VALUE)) {
i_vpr_e(inst, "%s: invalid sub states to clear %#x or set %#x\n",
func, clear_sub_state, set_sub_state);
return -EINVAL;
}
prev_sub_state = inst->sub_state;
inst->sub_state |= set_sub_state;
inst->sub_state &= ~clear_sub_state;
/* print substates only when there is a change */
if (inst->sub_state != prev_sub_state) {
rc = prepare_sub_state_name(inst->sub_state, inst->sub_state_name,
sizeof(inst->sub_state_name));
if (!rc)
i_vpr_h(inst, "%s: state %s and sub state changed to %s\n",
func, state_name(inst->state), inst->sub_state_name);
}
return 0;
}
bool msm_vidc_allow_s_fmt(struct msm_vidc_inst *inst, u32 type)
{
bool allow = false;

419
driver/vidc/src/msm_vidc_state.c
Vedi File

@@ -496,6 +496,136 @@ int msm_vidc_change_core_sub_state(struct msm_vidc_core *core,
return 0;
}
/* do not modify the state names as it is used in test scripts */
static const char * const state_name_arr[] =
FOREACH_STATE(GENERATE_STRING);
const char *state_name(enum msm_vidc_state state)
{
const char *name = "UNKNOWN STATE";
if (state >= ARRAY_SIZE(state_name_arr))
goto exit;
name = state_name_arr[state];
exit:
return name;
}
bool is_state(struct msm_vidc_inst *inst, enum msm_vidc_state state)
{
return inst->state == state;
}
bool is_sub_state(struct msm_vidc_inst *inst, enum msm_vidc_sub_state sub_state)
{
return (inst->sub_state & sub_state);
}
const char *sub_state_name(enum msm_vidc_sub_state sub_state)
{
switch (sub_state) {
case MSM_VIDC_DRAIN: return "DRAIN ";
case MSM_VIDC_DRC: return "DRC ";
case MSM_VIDC_DRAIN_LAST_BUFFER: return "DRAIN_LAST_BUFFER ";
case MSM_VIDC_DRC_LAST_BUFFER: return "DRC_LAST_BUFFER ";
case MSM_VIDC_INPUT_PAUSE: return "INPUT_PAUSE ";
case MSM_VIDC_OUTPUT_PAUSE: return "OUTPUT_PAUSE ";
}
return "SUB_STATE_NONE";
}
static int prepare_sub_state_name(enum msm_vidc_sub_state sub_state,
char *buf, u32 size)
{
int i = 0;
if (!buf || !size)
return -EINVAL;
strscpy(buf, "\0", size);
if (sub_state == MSM_VIDC_SUB_STATE_NONE) {
strscpy(buf, "SUB_STATE_NONE", size);
return 0;
}
for (i = 0; i < MSM_VIDC_MAX_SUB_STATES; i++) {
if (sub_state & BIT(i))
strlcat(buf, sub_state_name(BIT(i)), size);
}
return 0;
}
struct msm_vidc_state_allow {
enum msm_vidc_state from;
enum msm_vidc_state to;
enum msm_vidc_allow allow;
};
static enum msm_vidc_allow msm_vidc_allow_state_change(
struct msm_vidc_inst *inst,
enum msm_vidc_state req_state)
{
int cnt;
enum msm_vidc_allow allow = MSM_VIDC_DISALLOW;
static struct msm_vidc_state_allow state[] = {
/* from, to, allow */
{MSM_VIDC_OPEN, MSM_VIDC_OPEN, MSM_VIDC_IGNORE },
{MSM_VIDC_OPEN, MSM_VIDC_INPUT_STREAMING, MSM_VIDC_ALLOW },
{MSM_VIDC_OPEN, MSM_VIDC_OUTPUT_STREAMING, MSM_VIDC_ALLOW },
{MSM_VIDC_OPEN, MSM_VIDC_STREAMING, MSM_VIDC_DISALLOW },
{MSM_VIDC_OPEN, MSM_VIDC_CLOSE, MSM_VIDC_ALLOW },
{MSM_VIDC_OPEN, MSM_VIDC_ERROR, MSM_VIDC_ALLOW },
{MSM_VIDC_INPUT_STREAMING, MSM_VIDC_OPEN, MSM_VIDC_ALLOW },
{MSM_VIDC_INPUT_STREAMING, MSM_VIDC_INPUT_STREAMING, MSM_VIDC_IGNORE },
{MSM_VIDC_INPUT_STREAMING, MSM_VIDC_OUTPUT_STREAMING, MSM_VIDC_DISALLOW },
{MSM_VIDC_INPUT_STREAMING, MSM_VIDC_STREAMING, MSM_VIDC_ALLOW },
{MSM_VIDC_INPUT_STREAMING, MSM_VIDC_CLOSE, MSM_VIDC_ALLOW },
{MSM_VIDC_INPUT_STREAMING, MSM_VIDC_ERROR, MSM_VIDC_ALLOW },
{MSM_VIDC_OUTPUT_STREAMING, MSM_VIDC_OPEN, MSM_VIDC_ALLOW },
{MSM_VIDC_OUTPUT_STREAMING, MSM_VIDC_INPUT_STREAMING, MSM_VIDC_DISALLOW },
{MSM_VIDC_OUTPUT_STREAMING, MSM_VIDC_OUTPUT_STREAMING, MSM_VIDC_IGNORE },
{MSM_VIDC_OUTPUT_STREAMING, MSM_VIDC_STREAMING, MSM_VIDC_ALLOW },
{MSM_VIDC_OUTPUT_STREAMING, MSM_VIDC_CLOSE, MSM_VIDC_ALLOW },
{MSM_VIDC_OUTPUT_STREAMING, MSM_VIDC_ERROR, MSM_VIDC_ALLOW },
{MSM_VIDC_STREAMING, MSM_VIDC_OPEN, MSM_VIDC_DISALLOW },
{MSM_VIDC_STREAMING, MSM_VIDC_INPUT_STREAMING, MSM_VIDC_ALLOW },
{MSM_VIDC_STREAMING, MSM_VIDC_OUTPUT_STREAMING, MSM_VIDC_ALLOW },
{MSM_VIDC_STREAMING, MSM_VIDC_STREAMING, MSM_VIDC_IGNORE },
{MSM_VIDC_STREAMING, MSM_VIDC_CLOSE, MSM_VIDC_ALLOW },
{MSM_VIDC_STREAMING, MSM_VIDC_ERROR, MSM_VIDC_ALLOW },
{MSM_VIDC_CLOSE, MSM_VIDC_OPEN, MSM_VIDC_DISALLOW },
{MSM_VIDC_CLOSE, MSM_VIDC_INPUT_STREAMING, MSM_VIDC_DISALLOW },
{MSM_VIDC_CLOSE, MSM_VIDC_OUTPUT_STREAMING, MSM_VIDC_DISALLOW },
{MSM_VIDC_CLOSE, MSM_VIDC_STREAMING, MSM_VIDC_DISALLOW },
{MSM_VIDC_CLOSE, MSM_VIDC_CLOSE, MSM_VIDC_IGNORE },
{MSM_VIDC_CLOSE, MSM_VIDC_ERROR, MSM_VIDC_IGNORE },
{MSM_VIDC_ERROR, MSM_VIDC_OPEN, MSM_VIDC_IGNORE },
{MSM_VIDC_ERROR, MSM_VIDC_INPUT_STREAMING, MSM_VIDC_IGNORE },
{MSM_VIDC_ERROR, MSM_VIDC_OUTPUT_STREAMING, MSM_VIDC_IGNORE },
{MSM_VIDC_ERROR, MSM_VIDC_STREAMING, MSM_VIDC_IGNORE },
{MSM_VIDC_ERROR, MSM_VIDC_CLOSE, MSM_VIDC_ALLOW },
{MSM_VIDC_ERROR, MSM_VIDC_ERROR, MSM_VIDC_IGNORE },
};
for (cnt = 0; cnt < ARRAY_SIZE(state); cnt++) {
if (state[cnt].from == inst->state && state[cnt].to == req_state) {
allow = state[cnt].allow;
break;
}
}
return allow;
}
static int msm_vidc_open_state(struct msm_vidc_inst *inst,
enum msm_vidc_event event, void *data)
{
@@ -611,6 +741,33 @@ static int msm_vidc_input_streaming_state(struct msm_vidc_inst *inst,
}
switch (event) {
case MSM_VIDC_BUF_QUEUE:
{
struct msm_vidc_buffer *buf = (struct msm_vidc_buffer *)data;
/* defer meta port */
if (buf->type == MSM_VIDC_BUF_INPUT_META || buf->type == MSM_VIDC_BUF_OUTPUT_META) {
print_vidc_buffer(VIDC_LOW, "low ", "qbuf deferred", inst, buf);
return 0;
}
/* disallow */
if (buf->type != MSM_VIDC_BUF_INPUT && buf->type != MSM_VIDC_BUF_OUTPUT) {
i_vpr_e(inst, "%s: invalid buf type %u\n", __func__, buf->type);
return -EINVAL;
}
/* defer output port */
if (buf->type == MSM_VIDC_BUF_OUTPUT) {
print_vidc_buffer(VIDC_LOW, "low ", "qbuf deferred", inst, buf);
return 0;
}
rc = msm_vidc_buf_queue(inst, buf);
if (rc)
return rc;
break;
}
case MSM_VIDC_S_FMT:
{
struct v4l2_format *f = (struct v4l2_format *)data;
@@ -707,33 +864,6 @@ static int msm_vidc_input_streaming_state(struct msm_vidc_inst *inst,
return rc;
break;
}
case MSM_VIDC_BUF_QUEUE:
{
struct msm_vidc_buffer *buf = (struct msm_vidc_buffer *)data;
/* defer meta port */
if (buf->type == MSM_VIDC_BUF_INPUT_META || buf->type == MSM_VIDC_BUF_OUTPUT_META) {
print_vidc_buffer(VIDC_LOW, "low ", "qbuf deferred", inst, buf);
return 0;
}
/* disallow */
if (buf->type != MSM_VIDC_BUF_INPUT && buf->type != MSM_VIDC_BUF_OUTPUT) {
i_vpr_e(inst, "%s: invalid buf type %u\n", __func__, buf->type);
return -EINVAL;
}
/* defer output port */
if (buf->type == MSM_VIDC_BUF_OUTPUT) {
print_vidc_buffer(VIDC_LOW, "low ", "qbuf deferred", inst, buf);
return 0;
}
rc = msm_vidc_buf_queue(inst, buf);
if (rc)
return rc;
break;
}
default:
{
i_vpr_e(inst, "%s: unexpected event %s\n", __func__, event_name(event));
@@ -762,6 +892,33 @@ static int msm_vidc_output_streaming_state(struct msm_vidc_inst *inst,
}
switch (event) {
case MSM_VIDC_BUF_QUEUE:
{
struct msm_vidc_buffer *buf = (struct msm_vidc_buffer *)data;
/* defer meta port */
if (buf->type == MSM_VIDC_BUF_INPUT_META || buf->type == MSM_VIDC_BUF_OUTPUT_META) {
print_vidc_buffer(VIDC_LOW, "low ", "qbuf deferred", inst, buf);
return 0;
}
/* disallow */
if (buf->type != MSM_VIDC_BUF_INPUT && buf->type != MSM_VIDC_BUF_OUTPUT) {
i_vpr_e(inst, "%s: invalid buf type %u\n", __func__, buf->type);
return -EINVAL;
}
/* defer input port */
if (buf->type == MSM_VIDC_BUF_INPUT) {
print_vidc_buffer(VIDC_LOW, "low ", "qbuf deferred", inst, buf);
return 0;
}
rc = msm_vidc_buf_queue(inst, buf);
if (rc)
return rc;
break;
}
case MSM_VIDC_S_FMT:
{
struct v4l2_format *f = (struct v4l2_format *)data;
@@ -858,33 +1015,6 @@ static int msm_vidc_output_streaming_state(struct msm_vidc_inst *inst,
return rc;
break;
}
case MSM_VIDC_BUF_QUEUE:
{
struct msm_vidc_buffer *buf = (struct msm_vidc_buffer *)data;
/* defer meta port */
if (buf->type == MSM_VIDC_BUF_INPUT_META || buf->type == MSM_VIDC_BUF_OUTPUT_META) {
print_vidc_buffer(VIDC_LOW, "low ", "qbuf deferred", inst, buf);
return 0;
}
/* disallow */
if (buf->type != MSM_VIDC_BUF_INPUT && buf->type != MSM_VIDC_BUF_OUTPUT) {
i_vpr_e(inst, "%s: invalid buf type %u\n", __func__, buf->type);
return -EINVAL;
}
/* defer input port */
if (buf->type == MSM_VIDC_BUF_INPUT) {
print_vidc_buffer(VIDC_LOW, "low ", "qbuf deferred", inst, buf);
return 0;
}
rc = msm_vidc_buf_queue(inst, buf);
if (rc)
return rc;
break;
}
default: {
i_vpr_e(inst, "%s: unexpected event %s\n", __func__, event_name(event));
return -EINVAL;
@@ -912,6 +1042,27 @@ static int msm_vidc_streaming_state(struct msm_vidc_inst *inst,
}
switch (event) {
case MSM_VIDC_BUF_QUEUE:
{
struct msm_vidc_buffer *buf = (struct msm_vidc_buffer *)data;
/* defer meta port */
if (buf->type == MSM_VIDC_BUF_INPUT_META || buf->type == MSM_VIDC_BUF_OUTPUT_META) {
print_vidc_buffer(VIDC_LOW, "low ", "qbuf deferred", inst, buf);
return 0;
}
/* disallow */
if (buf->type != MSM_VIDC_BUF_INPUT && buf->type != MSM_VIDC_BUF_OUTPUT) {
i_vpr_e(inst, "%s: invalid buf type %u\n", __func__, buf->type);
return -EINVAL;
}
rc = msm_vidc_buf_queue(inst, buf);
if (rc)
return rc;
break;
}
case MSM_VIDC_S_CTRL:
{
struct v4l2_ctrl *ctrl = (struct v4l2_ctrl *)data;
@@ -971,27 +1122,6 @@ static int msm_vidc_streaming_state(struct msm_vidc_inst *inst,
return rc;
break;
}
case MSM_VIDC_BUF_QUEUE:
{
struct msm_vidc_buffer *buf = (struct msm_vidc_buffer *)data;
/* defer meta port */
if (buf->type == MSM_VIDC_BUF_INPUT_META || buf->type == MSM_VIDC_BUF_OUTPUT_META) {
print_vidc_buffer(VIDC_LOW, "low ", "qbuf deferred", inst, buf);
return 0;
}
/* disallow */
if (buf->type != MSM_VIDC_BUF_INPUT && buf->type != MSM_VIDC_BUF_OUTPUT) {
i_vpr_e(inst, "%s: invalid buf type %u\n", __func__, buf->type);
return -EINVAL;
}
rc = msm_vidc_buf_queue(inst, buf);
if (rc)
return rc;
break;
}
default: {
i_vpr_e(inst, "%s: unexpected event %s\n", __func__, event_name(event));
return -EINVAL;
@@ -1124,69 +1254,86 @@ int msm_vidc_update_state(struct msm_vidc_inst *inst,
return rc;
}
struct msm_vidc_state_allow {
enum msm_vidc_state from;
enum msm_vidc_state to;
enum msm_vidc_allow allow;
};
enum msm_vidc_allow msm_vidc_allow_state_change(
struct msm_vidc_inst *inst,
enum msm_vidc_state req_state)
int msm_vidc_change_state(struct msm_vidc_inst *inst,
enum msm_vidc_state request_state, const char *func)
{
int cnt;
enum msm_vidc_allow allow = MSM_VIDC_DISALLOW;
static struct msm_vidc_state_allow state[] = {
/* from, to, allow */
{MSM_VIDC_OPEN, MSM_VIDC_OPEN, MSM_VIDC_IGNORE },
{MSM_VIDC_OPEN, MSM_VIDC_INPUT_STREAMING, MSM_VIDC_ALLOW },
{MSM_VIDC_OPEN, MSM_VIDC_OUTPUT_STREAMING, MSM_VIDC_ALLOW },
{MSM_VIDC_OPEN, MSM_VIDC_STREAMING, MSM_VIDC_DISALLOW },
{MSM_VIDC_OPEN, MSM_VIDC_CLOSE, MSM_VIDC_ALLOW },
{MSM_VIDC_OPEN, MSM_VIDC_ERROR, MSM_VIDC_ALLOW },
enum msm_vidc_allow allow;
int rc;
{MSM_VIDC_INPUT_STREAMING, MSM_VIDC_OPEN, MSM_VIDC_ALLOW },
{MSM_VIDC_INPUT_STREAMING, MSM_VIDC_INPUT_STREAMING, MSM_VIDC_IGNORE },
{MSM_VIDC_INPUT_STREAMING, MSM_VIDC_OUTPUT_STREAMING, MSM_VIDC_DISALLOW },
{MSM_VIDC_INPUT_STREAMING, MSM_VIDC_STREAMING, MSM_VIDC_ALLOW },
{MSM_VIDC_INPUT_STREAMING, MSM_VIDC_CLOSE, MSM_VIDC_ALLOW },
{MSM_VIDC_INPUT_STREAMING, MSM_VIDC_ERROR, MSM_VIDC_ALLOW },
{MSM_VIDC_OUTPUT_STREAMING, MSM_VIDC_OPEN, MSM_VIDC_ALLOW },
{MSM_VIDC_OUTPUT_STREAMING, MSM_VIDC_INPUT_STREAMING, MSM_VIDC_DISALLOW },
{MSM_VIDC_OUTPUT_STREAMING, MSM_VIDC_OUTPUT_STREAMING, MSM_VIDC_IGNORE },
{MSM_VIDC_OUTPUT_STREAMING, MSM_VIDC_STREAMING, MSM_VIDC_ALLOW },
{MSM_VIDC_OUTPUT_STREAMING, MSM_VIDC_CLOSE, MSM_VIDC_ALLOW },
{MSM_VIDC_OUTPUT_STREAMING, MSM_VIDC_ERROR, MSM_VIDC_ALLOW },
{MSM_VIDC_STREAMING, MSM_VIDC_OPEN, MSM_VIDC_DISALLOW },
{MSM_VIDC_STREAMING, MSM_VIDC_INPUT_STREAMING, MSM_VIDC_ALLOW },
{MSM_VIDC_STREAMING, MSM_VIDC_OUTPUT_STREAMING, MSM_VIDC_ALLOW },
{MSM_VIDC_STREAMING, MSM_VIDC_STREAMING, MSM_VIDC_IGNORE },
{MSM_VIDC_STREAMING, MSM_VIDC_CLOSE, MSM_VIDC_ALLOW },
{MSM_VIDC_STREAMING, MSM_VIDC_ERROR, MSM_VIDC_ALLOW },
{MSM_VIDC_CLOSE, MSM_VIDC_OPEN, MSM_VIDC_DISALLOW },
{MSM_VIDC_CLOSE, MSM_VIDC_INPUT_STREAMING, MSM_VIDC_DISALLOW },
{MSM_VIDC_CLOSE, MSM_VIDC_OUTPUT_STREAMING, MSM_VIDC_DISALLOW },
{MSM_VIDC_CLOSE, MSM_VIDC_STREAMING, MSM_VIDC_DISALLOW },
{MSM_VIDC_CLOSE, MSM_VIDC_CLOSE, MSM_VIDC_IGNORE },
{MSM_VIDC_CLOSE, MSM_VIDC_ERROR, MSM_VIDC_IGNORE },
{MSM_VIDC_ERROR, MSM_VIDC_OPEN, MSM_VIDC_IGNORE },
{MSM_VIDC_ERROR, MSM_VIDC_INPUT_STREAMING, MSM_VIDC_IGNORE },
{MSM_VIDC_ERROR, MSM_VIDC_OUTPUT_STREAMING, MSM_VIDC_IGNORE },
{MSM_VIDC_ERROR, MSM_VIDC_STREAMING, MSM_VIDC_IGNORE },
{MSM_VIDC_ERROR, MSM_VIDC_CLOSE, MSM_VIDC_ALLOW },
{MSM_VIDC_ERROR, MSM_VIDC_ERROR, MSM_VIDC_IGNORE },
};
for (cnt = 0; cnt < ARRAY_SIZE(state); cnt++) {
if (state[cnt].from == inst->state && state[cnt].to == req_state) {
allow = state[cnt].allow;
break;
}
if (!inst) {
d_vpr_e("%s: invalid params\n", __func__);
return -EINVAL;
}
return allow;
if (is_session_error(inst)) {
i_vpr_h(inst,
"%s: inst is in bad state, can not change state to %s\n",
func, state_name(request_state));
return 0;
}
/* current and requested state is same */
if (inst->state == request_state)
return 0;
/* check if requested state movement is allowed */
allow = msm_vidc_allow_state_change(inst, request_state);
if (allow != MSM_VIDC_ALLOW) {
i_vpr_e(inst, "%s: %s state change %s -> %s\n", func,
allow_name(allow), state_name(inst->state),
state_name(request_state));
return (allow == MSM_VIDC_DISALLOW ? -EINVAL : 0);
}
/* go ahead and update inst state */
rc = msm_vidc_update_state(inst, request_state, func);
if (rc)
return rc;
return 0;
}
int msm_vidc_change_sub_state(struct msm_vidc_inst *inst,
enum msm_vidc_sub_state clear_sub_state,
enum msm_vidc_sub_state set_sub_state, const char *func)
{
enum msm_vidc_sub_state prev_sub_state;
int rc = 0;
if (!inst) {
d_vpr_e("%s: invalid params\n", __func__);
return -EINVAL;
}
if (is_session_error(inst)) {
i_vpr_h(inst,
"%s: inst is in bad state, can not change sub state\n", func);
return 0;
}
if (!clear_sub_state && !set_sub_state)
return 0;
if ((clear_sub_state & set_sub_state) ||
(set_sub_state > MSM_VIDC_MAX_SUB_STATE_VALUE) ||
(clear_sub_state > MSM_VIDC_MAX_SUB_STATE_VALUE)) {
i_vpr_e(inst, "%s: invalid sub states to clear %#x or set %#x\n",
func, clear_sub_state, set_sub_state);
return -EINVAL;
}
prev_sub_state = inst->sub_state;
inst->sub_state |= set_sub_state;
inst->sub_state &= ~clear_sub_state;
/* print substates only when there is a change */
if (inst->sub_state != prev_sub_state) {
rc = prepare_sub_state_name(inst->sub_state, inst->sub_state_name,
sizeof(inst->sub_state_name));
if (!rc)
i_vpr_h(inst, "%s: state %s and sub state changed to %s\n",
func, state_name(inst->state), inst->sub_state_name);
}
return 0;
}