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path: root/target/linux/ramips/files/drivers/usb/host/xhci-mtk-scheduler.c
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Diffstat (limited to 'target/linux/ramips/files/drivers/usb/host/xhci-mtk-scheduler.c')
-rw-r--r--target/linux/ramips/files/drivers/usb/host/xhci-mtk-scheduler.c608
1 files changed, 0 insertions, 608 deletions
diff --git a/target/linux/ramips/files/drivers/usb/host/xhci-mtk-scheduler.c b/target/linux/ramips/files/drivers/usb/host/xhci-mtk-scheduler.c
deleted file mode 100644
index bf6a8bdc19..0000000000
--- a/target/linux/ramips/files/drivers/usb/host/xhci-mtk-scheduler.c
+++ /dev/null
@@ -1,608 +0,0 @@
-#include "xhci-mtk-scheduler.h"
-#include <linux/kernel.h> /* printk() */
-
-static struct sch_ep **ss_out_eps[MAX_EP_NUM];
-static struct sch_ep **ss_in_eps[MAX_EP_NUM];
-static struct sch_ep **hs_eps[MAX_EP_NUM]; //including tt isoc
-static struct sch_ep **tt_intr_eps[MAX_EP_NUM];
-
-
-int mtk_xhci_scheduler_init(void){
- int i;
-
- for(i=0; i<MAX_EP_NUM; i++){
- ss_out_eps[i] = NULL;
- }
- for(i=0; i<MAX_EP_NUM; i++){
- ss_in_eps[i] = NULL;
- }
- for(i=0; i<MAX_EP_NUM; i++){
- hs_eps[i] = NULL;
- }
- for(i=0; i<MAX_EP_NUM; i++){
- tt_intr_eps[i] = NULL;
- }
- return 0;
-}
-
-int add_sch_ep(int dev_speed, int is_in, int isTT, int ep_type, int maxp, int interval, int burst
- , int mult, int offset, int repeat, int pkts, int cs_count, int burst_mode
- , int bw_cost, mtk_u32 *ep, struct sch_ep *tmp_ep){
-
- struct sch_ep **ep_array;
- int i;
-
- if(is_in && dev_speed == USB_SPEED_SUPER ){
- ep_array = (struct sch_ep **)ss_in_eps;
- }
- else if(dev_speed == USB_SPEED_SUPER){
- ep_array = (struct sch_ep **)ss_out_eps;
- }
- else if(dev_speed == USB_SPEED_HIGH || (isTT && ep_type == USB_EP_ISOC)){
- ep_array = (struct sch_ep **)hs_eps;
- }
- else{
- ep_array = (struct sch_ep **)tt_intr_eps;
- }
- for(i=0; i<MAX_EP_NUM; i++){
- if(ep_array[i] == NULL){
- tmp_ep->dev_speed = dev_speed;
- tmp_ep->isTT = isTT;
- tmp_ep->is_in = is_in;
- tmp_ep->ep_type = ep_type;
- tmp_ep->maxp = maxp;
- tmp_ep->interval = interval;
- tmp_ep->burst = burst;
- tmp_ep->mult = mult;
- tmp_ep->offset = offset;
- tmp_ep->repeat = repeat;
- tmp_ep->pkts = pkts;
- tmp_ep->cs_count = cs_count;
- tmp_ep->burst_mode = burst_mode;
- tmp_ep->bw_cost = bw_cost;
- tmp_ep->ep = ep;
- ep_array[i] = tmp_ep;
- return SCH_SUCCESS;
- }
- }
- return SCH_FAIL;
-}
-
-int count_ss_bw(int is_in, int ep_type, int maxp, int interval, int burst, int mult, int offset, int repeat
- , int td_size){
- int i, j, k;
- int bw_required[3];
- int final_bw_required;
- int bw_required_per_repeat;
- int tmp_bw_required;
- struct sch_ep *cur_sch_ep;
- struct sch_ep **ep_array;
- int cur_offset;
- int cur_ep_offset;
- int tmp_offset;
- int tmp_interval;
- int ep_offset;
- int ep_interval;
- int ep_repeat;
- int ep_mult;
-
- if(is_in){
- ep_array = (struct sch_ep **)ss_in_eps;
- }
- else{
- ep_array = (struct sch_ep **)ss_out_eps;
- }
-
- bw_required[0] = 0;
- bw_required[1] = 0;
- bw_required[2] = 0;
-
- if(repeat == 0){
- final_bw_required = 0;
- for(i=0; i<MAX_EP_NUM; i++){
- cur_sch_ep = ep_array[i];
- if(cur_sch_ep == NULL){
- continue;
- }
- ep_interval = cur_sch_ep->interval;
- ep_offset = cur_sch_ep->offset;
- if(cur_sch_ep->repeat == 0){
- if(ep_interval >= interval){
- tmp_offset = ep_offset + ep_interval - offset;
- tmp_interval = interval;
- }
- else{
- tmp_offset = offset + interval - ep_offset;
- tmp_interval = ep_interval;
- }
- if(tmp_offset % tmp_interval == 0){
- final_bw_required += cur_sch_ep->bw_cost;
- }
- }
- else{
- ep_repeat = cur_sch_ep->repeat;
- ep_mult = cur_sch_ep->mult;
- for(k=0; k<=ep_mult; k++){
- cur_ep_offset = ep_offset+(k*ep_mult);
- if(ep_interval >= interval){
- tmp_offset = cur_ep_offset + ep_interval - offset;
- tmp_interval = interval;
- }
- else{
- tmp_offset = offset + interval - cur_ep_offset;
- tmp_interval = ep_interval;
- }
- if(tmp_offset % tmp_interval == 0){
- final_bw_required += cur_sch_ep->bw_cost;
- break;
- }
- }
- }
- }
- final_bw_required += td_size;
- }
- else{
- bw_required_per_repeat = maxp * (burst+1);
- for(j=0; j<=mult; j++){
- tmp_bw_required = 0;
- cur_offset = offset+(j*repeat);
- for(i=0; i<MAX_EP_NUM; i++){
- cur_sch_ep = ep_array[i];
- if(cur_sch_ep == NULL){
- continue;
- }
- ep_interval = cur_sch_ep->interval;
- ep_offset = cur_sch_ep->offset;
- if(cur_sch_ep->repeat == 0){
- if(ep_interval >= interval){
- tmp_offset = ep_offset + ep_interval - cur_offset;
- tmp_interval = interval;
- }
- else{
- tmp_offset = cur_offset + interval - ep_offset;
- tmp_interval = ep_interval;
- }
- if(tmp_offset % tmp_interval == 0){
- tmp_bw_required += cur_sch_ep->bw_cost;
- }
- }
- else{
- ep_repeat = cur_sch_ep->repeat;
- ep_mult = cur_sch_ep->mult;
- for(k=0; k<=ep_mult; k++){
- cur_ep_offset = ep_offset+(k*ep_repeat);
- if(ep_interval >= interval){
- tmp_offset = cur_ep_offset + ep_interval - cur_offset;
- tmp_interval = interval;
- }
- else{
- tmp_offset = cur_offset + interval - cur_ep_offset;
- tmp_interval = ep_interval;
- }
- if(tmp_offset % tmp_interval == 0){
- tmp_bw_required += cur_sch_ep->bw_cost;
- break;
- }
- }
- }
- }
- bw_required[j] = tmp_bw_required;
- }
- final_bw_required = SS_BW_BOUND;
- for(j=0; j<=mult; j++){
- if(bw_required[j] < final_bw_required){
- final_bw_required = bw_required[j];
- }
- }
- final_bw_required += bw_required_per_repeat;
- }
- return final_bw_required;
-}
-
-int count_hs_bw(int ep_type, int maxp, int interval, int offset, int td_size){
- int i;
- int bw_required;
- struct sch_ep *cur_sch_ep;
- int tmp_offset;
- int tmp_interval;
- int ep_offset;
- int ep_interval;
- int cur_tt_isoc_interval; //for isoc tt check
-
- bw_required = 0;
- for(i=0; i<MAX_EP_NUM; i++){
-
- cur_sch_ep = (struct sch_ep *)hs_eps[i];
- if(cur_sch_ep == NULL){
- continue;
- }
- ep_offset = cur_sch_ep->offset;
- ep_interval = cur_sch_ep->interval;
-
- if(cur_sch_ep->isTT && cur_sch_ep->ep_type == USB_EP_ISOC){
- cur_tt_isoc_interval = ep_interval<<3;
- if(ep_interval >= interval){
- tmp_offset = ep_offset + cur_tt_isoc_interval - offset;
- tmp_interval = interval;
- }
- else{
- tmp_offset = offset + interval - ep_offset;
- tmp_interval = cur_tt_isoc_interval;
- }
- if(cur_sch_ep->is_in){
- if((tmp_offset%tmp_interval >=2) && (tmp_offset%tmp_interval <= cur_sch_ep->cs_count)){
- bw_required += 188;
- }
- }
- else{
- if(tmp_offset%tmp_interval <= cur_sch_ep->cs_count){
- bw_required += 188;
- }
- }
- }
- else{
- if(ep_interval >= interval){
- tmp_offset = ep_offset + ep_interval - offset;
- tmp_interval = interval;
- }
- else{
- tmp_offset = offset + interval - ep_offset;
- tmp_interval = ep_interval;
- }
- if(tmp_offset%tmp_interval == 0){
- bw_required += cur_sch_ep->bw_cost;
- }
- }
- }
- bw_required += td_size;
- return bw_required;
-}
-
-int count_tt_isoc_bw(int is_in, int maxp, int interval, int offset, int td_size){
- char is_cs;
- int mframe_idx, frame_idx, s_frame, s_mframe, cur_mframe;
- int bw_required, max_bw;
- int ss_cs_count;
- int cs_mframe;
- int max_frame;
- int i,j;
- struct sch_ep *cur_sch_ep;
- int ep_offset;
- int ep_interval;
- int ep_cs_count;
- int tt_isoc_interval; //for isoc tt check
- int cur_tt_isoc_interval; //for isoc tt check
- int tmp_offset;
- int tmp_interval;
-
- is_cs = 0;
-
- tt_isoc_interval = interval<<3; //frame to mframe
- if(is_in){
- is_cs = 1;
- }
- s_frame = offset/8;
- s_mframe = offset%8;
- ss_cs_count = (maxp + (188 - 1))/188;
- if(is_cs){
- cs_mframe = offset%8 + 2 + ss_cs_count;
- if (cs_mframe <= 6)
- ss_cs_count += 2;
- else if (cs_mframe == 7)
- ss_cs_count++;
- else if (cs_mframe > 8)
- return -1;
- }
- max_bw = 0;
- if(is_in){
- i=2;
- }
- for(cur_mframe = offset+i; i<ss_cs_count; cur_mframe++, i++){
- bw_required = 0;
- for(j=0; j<MAX_EP_NUM; j++){
- cur_sch_ep = (struct sch_ep *)hs_eps[j];
- if(cur_sch_ep == NULL){
- continue;
- }
- ep_offset = cur_sch_ep->offset;
- ep_interval = cur_sch_ep->interval;
- if(cur_sch_ep->isTT && cur_sch_ep->ep_type == USB_EP_ISOC){
- //isoc tt
- //check if mframe offset overlap
- //if overlap, add 188 to the bw
- cur_tt_isoc_interval = ep_interval<<3;
- if(cur_tt_isoc_interval >= tt_isoc_interval){
- tmp_offset = (ep_offset+cur_tt_isoc_interval) - cur_mframe;
- tmp_interval = tt_isoc_interval;
- }
- else{
- tmp_offset = (cur_mframe+tt_isoc_interval) - ep_offset;
- tmp_interval = cur_tt_isoc_interval;
- }
- if(cur_sch_ep->is_in){
- if((tmp_offset%tmp_interval >=2) && (tmp_offset%tmp_interval <= cur_sch_ep->cs_count)){
- bw_required += 188;
- }
- }
- else{
- if(tmp_offset%tmp_interval <= cur_sch_ep->cs_count){
- bw_required += 188;
- }
- }
-
- }
- else if(cur_sch_ep->ep_type == USB_EP_INT || cur_sch_ep->ep_type == USB_EP_ISOC){
- //check if mframe
- if(ep_interval >= tt_isoc_interval){
- tmp_offset = (ep_offset+ep_interval) - cur_mframe;
- tmp_interval = tt_isoc_interval;
- }
- else{
- tmp_offset = (cur_mframe+tt_isoc_interval) - ep_offset;
- tmp_interval = ep_interval;
- }
- if(tmp_offset%tmp_interval == 0){
- bw_required += cur_sch_ep->bw_cost;
- }
- }
- }
- bw_required += 188;
- if(bw_required > max_bw){
- max_bw = bw_required;
- }
- }
- return max_bw;
-}
-
-int count_tt_intr_bw(int interval, int frame_offset){
- //check all eps in tt_intr_eps
- int ret;
- int i,j;
- int ep_offset;
- int ep_interval;
- int tmp_offset;
- int tmp_interval;
- ret = SCH_SUCCESS;
- struct sch_ep *cur_sch_ep;
-
- for(i=0; i<MAX_EP_NUM; i++){
- cur_sch_ep = (struct sch_ep *)tt_intr_eps[i];
- if(cur_sch_ep == NULL){
- continue;
- }
- ep_offset = cur_sch_ep->offset;
- ep_interval = cur_sch_ep->interval;
- if(ep_interval >= interval){
- tmp_offset = ep_offset + ep_interval - frame_offset;
- tmp_interval = interval;
- }
- else{
- tmp_offset = frame_offset + interval - ep_offset;
- tmp_interval = ep_interval;
- }
-
- if(tmp_offset%tmp_interval==0){
- return SCH_FAIL;
- }
- }
- return SCH_SUCCESS;
-}
-
-struct sch_ep * mtk_xhci_scheduler_remove_ep(int dev_speed, int is_in, int isTT, int ep_type, mtk_u32 *ep){
- int i;
- struct sch_ep **ep_array;
- struct sch_ep *cur_ep;
-
- if (is_in && dev_speed == USB_SPEED_SUPER) {
- ep_array = (struct sch_ep **)ss_in_eps;
- }
- else if (dev_speed == USB_SPEED_SUPER) {
- ep_array = (struct sch_ep **)ss_out_eps;
- }
- else if (dev_speed == USB_SPEED_HIGH || (isTT && ep_type == USB_EP_ISOC)) {
- ep_array = (struct sch_ep **)hs_eps;
- }
- else {
- ep_array = (struct sch_ep **)tt_intr_eps;
- }
- for (i = 0; i < MAX_EP_NUM; i++) {
- cur_ep = (struct sch_ep *)ep_array[i];
- if(cur_ep != NULL && cur_ep->ep == ep){
- ep_array[i] = NULL;
- return cur_ep;
- }
- }
- return NULL;
-}
-
-int mtk_xhci_scheduler_add_ep(int dev_speed, int is_in, int isTT, int ep_type, int maxp, int interval, int burst
- , int mult, mtk_u32 *ep, mtk_u32 *ep_ctx, struct sch_ep *sch_ep){
- mtk_u32 bPkts = 0;
- mtk_u32 bCsCount = 0;
- mtk_u32 bBm = 1;
- mtk_u32 bOffset = 0;
- mtk_u32 bRepeat = 0;
- int ret;
- struct mtk_xhci_ep_ctx *temp_ep_ctx;
- int td_size;
- int mframe_idx, frame_idx;
- int bw_cost;
- int cur_bw, best_bw, best_bw_idx,repeat, max_repeat, best_bw_repeat;
- int cur_offset, cs_mframe;
- int break_out;
- int frame_interval;
-
- printk(KERN_ERR "add_ep parameters, dev_speed %d, is_in %d, isTT %d, ep_type %d, maxp %d, interval %d, burst %d, mult %d, ep 0x%x, ep_ctx 0x%x, sch_ep 0x%x\n", dev_speed, is_in, isTT, ep_type, maxp
- , interval, burst, mult, ep, ep_ctx, sch_ep);
- if(isTT && ep_type == USB_EP_INT && ((dev_speed == USB_SPEED_LOW) || (dev_speed == USB_SPEED_FULL))){
- frame_interval = interval >> 3;
- for(frame_idx=0; frame_idx<frame_interval; frame_idx++){
- printk(KERN_ERR "check tt_intr_bw interval %d, frame_idx %d\n", frame_interval, frame_idx);
- if(count_tt_intr_bw(frame_interval, frame_idx) == SCH_SUCCESS){
- printk(KERN_ERR "check OK............\n");
- bOffset = frame_idx<<3;
- bPkts = 1;
- bCsCount = 3;
- bw_cost = maxp;
- bRepeat = 0;
- if(add_sch_ep(dev_speed, is_in, isTT, ep_type, maxp, frame_interval, burst, mult
- , bOffset, bRepeat, bPkts, bCsCount, bBm, maxp, ep, sch_ep) == SCH_FAIL){
- return SCH_FAIL;
- }
- ret = SCH_SUCCESS;
- break;
- }
- }
- }
- else if(isTT && ep_type == USB_EP_ISOC){
- best_bw = HS_BW_BOUND;
- best_bw_idx = -1;
- cur_bw = 0;
- td_size = maxp;
- break_out = 0;
- frame_interval = interval>>3;
- for(frame_idx=0; frame_idx<frame_interval && !break_out; frame_idx++){
- for(mframe_idx=0; mframe_idx<8; mframe_idx++){
- cur_offset = (frame_idx*8) + mframe_idx;
- cur_bw = count_tt_isoc_bw(is_in, maxp, frame_interval, cur_offset, td_size);
- if(cur_bw > 0 && cur_bw < best_bw){
- best_bw_idx = cur_offset;
- best_bw = cur_bw;
- if(cur_bw == td_size || cur_bw < (HS_BW_BOUND>>1)){
- break_out = 1;
- break;
- }
- }
- }
- }
- if(best_bw_idx == -1){
- return SCH_FAIL;
- }
- else{
- bOffset = best_bw_idx;
- bPkts = 1;
- bCsCount = (maxp + (188 - 1)) / 188;
- if(is_in){
- cs_mframe = bOffset%8 + 2 + bCsCount;
- if (cs_mframe <= 6)
- bCsCount += 2;
- else if (cs_mframe == 7)
- bCsCount++;
- }
- bw_cost = 188;
- bRepeat = 0;
- if(add_sch_ep( dev_speed, is_in, isTT, ep_type, maxp, interval, burst, mult
- , bOffset, bRepeat, bPkts, bCsCount, bBm, bw_cost, ep, sch_ep) == SCH_FAIL){
- return SCH_FAIL;
- }
- ret = SCH_SUCCESS;
- }
- }
- else if((dev_speed == USB_SPEED_FULL || dev_speed == USB_SPEED_LOW) && ep_type == USB_EP_INT){
- bPkts = 1;
- ret = SCH_SUCCESS;
- }
- else if(dev_speed == USB_SPEED_FULL && ep_type == USB_EP_ISOC){
- bPkts = 1;
- ret = SCH_SUCCESS;
- }
- else if(dev_speed == USB_SPEED_HIGH && (ep_type == USB_EP_INT || ep_type == USB_EP_ISOC)){
- best_bw = HS_BW_BOUND;
- best_bw_idx = -1;
- cur_bw = 0;
- td_size = maxp*(burst+1);
- for(cur_offset = 0; cur_offset<interval; cur_offset++){
- cur_bw = count_hs_bw(ep_type, maxp, interval, cur_offset, td_size);
- if(cur_bw > 0 && cur_bw < best_bw){
- best_bw_idx = cur_offset;
- best_bw = cur_bw;
- if(cur_bw == td_size || cur_bw < (HS_BW_BOUND>>1)){
- break;
- }
- }
- }
- if(best_bw_idx == -1){
- return SCH_FAIL;
- }
- else{
- bOffset = best_bw_idx;
- bPkts = burst + 1;
- bCsCount = 0;
- bw_cost = td_size;
- bRepeat = 0;
- if(add_sch_ep(dev_speed, is_in, isTT, ep_type, maxp, interval, burst, mult
- , bOffset, bRepeat, bPkts, bCsCount, bBm, bw_cost, ep, sch_ep) == SCH_FAIL){
- return SCH_FAIL;
- }
- ret = SCH_SUCCESS;
- }
- }
- else if(dev_speed == USB_SPEED_SUPER && (ep_type == USB_EP_INT || ep_type == USB_EP_ISOC)){
- best_bw = SS_BW_BOUND;
- best_bw_idx = -1;
- cur_bw = 0;
- td_size = maxp * (mult+1) * (burst+1);
- if(mult == 0){
- max_repeat = 0;
- }
- else{
- max_repeat = (interval-1)/(mult+1);
- }
- break_out = 0;
- for(frame_idx = 0; (frame_idx < interval) && !break_out; frame_idx++){
- for(repeat = max_repeat; repeat >= 0; repeat--){
- cur_bw = count_ss_bw(is_in, ep_type, maxp, interval, burst, mult, frame_idx
- , repeat, td_size);
- printk(KERN_ERR "count_ss_bw, frame_idx %d, repeat %d, td_size %d, result bw %d\n"
- , frame_idx, repeat, td_size, cur_bw);
- if(cur_bw > 0 && cur_bw < best_bw){
- best_bw_idx = frame_idx;
- best_bw_repeat = repeat;
- best_bw = cur_bw;
- if(cur_bw <= td_size || cur_bw < (HS_BW_BOUND>>1)){
- break_out = 1;
- break;
- }
- }
- }
- }
- printk(KERN_ERR "final best idx %d, best repeat %d\n", best_bw_idx, best_bw_repeat);
- if(best_bw_idx == -1){
- return SCH_FAIL;
- }
- else{
- bOffset = best_bw_idx;
- bCsCount = 0;
- bRepeat = best_bw_repeat;
- if(bRepeat == 0){
- bw_cost = (burst+1)*(mult+1)*maxp;
- bPkts = (burst+1)*(mult+1);
- }
- else{
- bw_cost = (burst+1)*maxp;
- bPkts = (burst+1);
- }
- if(add_sch_ep(dev_speed, is_in, isTT, ep_type, maxp, interval, burst, mult
- , bOffset, bRepeat, bPkts, bCsCount, bBm, bw_cost, ep, sch_ep) == SCH_FAIL){
- return SCH_FAIL;
- }
- ret = SCH_SUCCESS;
- }
- }
- else{
- bPkts = 1;
- ret = SCH_SUCCESS;
- }
- if(ret == SCH_SUCCESS){
- temp_ep_ctx = (struct mtk_xhci_ep_ctx *)ep_ctx;
- temp_ep_ctx->reserved[0] |= (BPKTS(bPkts) | BCSCOUNT(bCsCount) | BBM(bBm));
- temp_ep_ctx->reserved[1] |= (BOFFSET(bOffset) | BREPEAT(bRepeat));
-
- printk(KERN_DEBUG "[DBG] BPKTS: %x, BCSCOUNT: %x, BBM: %x\n", bPkts, bCsCount, bBm);
- printk(KERN_DEBUG "[DBG] BOFFSET: %x, BREPEAT: %x\n", bOffset, bRepeat);
- return SCH_SUCCESS;
- }
- else{
- return SCH_FAIL;
- }
-}
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