1d5d37f408
The advantage of kcalloc is, that will prevent integer overflows which could result from the multiplication of number of elements and size and it is also a bit nicer to read. The semantic patch that makes this change is available in https://lkml.org/lkml/2011/11/25/107 Signed-off-by: Thomas Meyer <thomas@m3y3r.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
886 lines
19 KiB
C
886 lines
19 KiB
C
/**
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* Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
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*
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* This source file is released under GPL v2 license (no other versions).
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* See the COPYING file included in the main directory of this source
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* distribution for the license terms and conditions.
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*
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* @File ctsrc.c
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*
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* @Brief
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* This file contains the implementation of the Sample Rate Convertor
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* resource management object.
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*
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* @Author Liu Chun
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* @Date May 13 2008
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*
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*/
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#include "ctsrc.h"
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#include "cthardware.h"
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#include <linux/slab.h>
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#define SRC_RESOURCE_NUM 256
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#define SRCIMP_RESOURCE_NUM 256
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static unsigned int conj_mask;
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static int src_default_config_memrd(struct src *src);
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static int src_default_config_memwr(struct src *src);
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static int src_default_config_arcrw(struct src *src);
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static int (*src_default_config[3])(struct src *) = {
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[MEMRD] = src_default_config_memrd,
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[MEMWR] = src_default_config_memwr,
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[ARCRW] = src_default_config_arcrw
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};
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static int src_set_state(struct src *src, unsigned int state)
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{
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struct hw *hw;
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hw = src->rsc.hw;
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hw->src_set_state(src->rsc.ctrl_blk, state);
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return 0;
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}
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static int src_set_bm(struct src *src, unsigned int bm)
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{
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struct hw *hw;
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hw = src->rsc.hw;
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hw->src_set_bm(src->rsc.ctrl_blk, bm);
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return 0;
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}
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static int src_set_sf(struct src *src, unsigned int sf)
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{
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struct hw *hw;
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hw = src->rsc.hw;
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hw->src_set_sf(src->rsc.ctrl_blk, sf);
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return 0;
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}
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static int src_set_pm(struct src *src, unsigned int pm)
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{
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struct hw *hw;
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hw = src->rsc.hw;
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hw->src_set_pm(src->rsc.ctrl_blk, pm);
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return 0;
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}
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static int src_set_rom(struct src *src, unsigned int rom)
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{
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struct hw *hw;
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hw = src->rsc.hw;
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hw->src_set_rom(src->rsc.ctrl_blk, rom);
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return 0;
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}
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static int src_set_vo(struct src *src, unsigned int vo)
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{
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struct hw *hw;
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hw = src->rsc.hw;
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hw->src_set_vo(src->rsc.ctrl_blk, vo);
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return 0;
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}
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static int src_set_st(struct src *src, unsigned int st)
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{
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struct hw *hw;
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hw = src->rsc.hw;
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hw->src_set_st(src->rsc.ctrl_blk, st);
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return 0;
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}
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static int src_set_bp(struct src *src, unsigned int bp)
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{
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struct hw *hw;
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hw = src->rsc.hw;
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hw->src_set_bp(src->rsc.ctrl_blk, bp);
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return 0;
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}
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static int src_set_cisz(struct src *src, unsigned int cisz)
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{
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struct hw *hw;
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hw = src->rsc.hw;
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hw->src_set_cisz(src->rsc.ctrl_blk, cisz);
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return 0;
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}
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static int src_set_ca(struct src *src, unsigned int ca)
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{
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struct hw *hw;
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hw = src->rsc.hw;
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hw->src_set_ca(src->rsc.ctrl_blk, ca);
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return 0;
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}
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static int src_set_sa(struct src *src, unsigned int sa)
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{
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struct hw *hw;
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hw = src->rsc.hw;
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hw->src_set_sa(src->rsc.ctrl_blk, sa);
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return 0;
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}
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static int src_set_la(struct src *src, unsigned int la)
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{
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struct hw *hw;
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hw = src->rsc.hw;
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hw->src_set_la(src->rsc.ctrl_blk, la);
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return 0;
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}
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static int src_set_pitch(struct src *src, unsigned int pitch)
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{
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struct hw *hw;
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hw = src->rsc.hw;
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hw->src_set_pitch(src->rsc.ctrl_blk, pitch);
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return 0;
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}
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static int src_set_clear_zbufs(struct src *src)
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{
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struct hw *hw;
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hw = src->rsc.hw;
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hw->src_set_clear_zbufs(src->rsc.ctrl_blk, 1);
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return 0;
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}
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static int src_commit_write(struct src *src)
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{
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struct hw *hw;
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int i;
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unsigned int dirty = 0;
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hw = src->rsc.hw;
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src->rsc.ops->master(&src->rsc);
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if (src->rsc.msr > 1) {
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/* Save dirty flags for conjugate resource programming */
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dirty = hw->src_get_dirty(src->rsc.ctrl_blk) & conj_mask;
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}
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hw->src_commit_write(hw, src->rsc.ops->index(&src->rsc),
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src->rsc.ctrl_blk);
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/* Program conjugate parameter mixer resources */
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if (MEMWR == src->mode)
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return 0;
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for (i = 1; i < src->rsc.msr; i++) {
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src->rsc.ops->next_conj(&src->rsc);
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hw->src_set_dirty(src->rsc.ctrl_blk, dirty);
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hw->src_commit_write(hw, src->rsc.ops->index(&src->rsc),
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src->rsc.ctrl_blk);
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}
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src->rsc.ops->master(&src->rsc);
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return 0;
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}
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static int src_get_ca(struct src *src)
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{
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struct hw *hw;
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hw = src->rsc.hw;
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return hw->src_get_ca(hw, src->rsc.ops->index(&src->rsc),
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src->rsc.ctrl_blk);
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}
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static int src_init(struct src *src)
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{
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src_default_config[src->mode](src);
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return 0;
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}
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static struct src *src_next_interleave(struct src *src)
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{
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return src->intlv;
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}
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static int src_default_config_memrd(struct src *src)
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{
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struct hw *hw = src->rsc.hw;
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unsigned int rsr, msr;
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hw->src_set_state(src->rsc.ctrl_blk, SRC_STATE_OFF);
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hw->src_set_bm(src->rsc.ctrl_blk, 1);
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for (rsr = 0, msr = src->rsc.msr; msr > 1; msr >>= 1)
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rsr++;
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hw->src_set_rsr(src->rsc.ctrl_blk, rsr);
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hw->src_set_sf(src->rsc.ctrl_blk, SRC_SF_S16);
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hw->src_set_wr(src->rsc.ctrl_blk, 0);
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hw->src_set_pm(src->rsc.ctrl_blk, 0);
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hw->src_set_rom(src->rsc.ctrl_blk, 0);
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hw->src_set_vo(src->rsc.ctrl_blk, 0);
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hw->src_set_st(src->rsc.ctrl_blk, 0);
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hw->src_set_ilsz(src->rsc.ctrl_blk, src->multi - 1);
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hw->src_set_cisz(src->rsc.ctrl_blk, 0x80);
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hw->src_set_sa(src->rsc.ctrl_blk, 0x0);
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hw->src_set_la(src->rsc.ctrl_blk, 0x1000);
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hw->src_set_ca(src->rsc.ctrl_blk, 0x80);
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hw->src_set_pitch(src->rsc.ctrl_blk, 0x1000000);
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hw->src_set_clear_zbufs(src->rsc.ctrl_blk, 1);
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src->rsc.ops->master(&src->rsc);
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hw->src_commit_write(hw, src->rsc.ops->index(&src->rsc),
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src->rsc.ctrl_blk);
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for (msr = 1; msr < src->rsc.msr; msr++) {
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src->rsc.ops->next_conj(&src->rsc);
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hw->src_set_pitch(src->rsc.ctrl_blk, 0x1000000);
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hw->src_commit_write(hw, src->rsc.ops->index(&src->rsc),
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src->rsc.ctrl_blk);
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}
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src->rsc.ops->master(&src->rsc);
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return 0;
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}
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static int src_default_config_memwr(struct src *src)
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{
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struct hw *hw = src->rsc.hw;
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hw->src_set_state(src->rsc.ctrl_blk, SRC_STATE_OFF);
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hw->src_set_bm(src->rsc.ctrl_blk, 1);
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hw->src_set_rsr(src->rsc.ctrl_blk, 0);
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hw->src_set_sf(src->rsc.ctrl_blk, SRC_SF_S16);
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hw->src_set_wr(src->rsc.ctrl_blk, 1);
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hw->src_set_pm(src->rsc.ctrl_blk, 0);
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hw->src_set_rom(src->rsc.ctrl_blk, 0);
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hw->src_set_vo(src->rsc.ctrl_blk, 0);
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hw->src_set_st(src->rsc.ctrl_blk, 0);
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hw->src_set_ilsz(src->rsc.ctrl_blk, 0);
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hw->src_set_cisz(src->rsc.ctrl_blk, 0x80);
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hw->src_set_sa(src->rsc.ctrl_blk, 0x0);
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hw->src_set_la(src->rsc.ctrl_blk, 0x1000);
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hw->src_set_ca(src->rsc.ctrl_blk, 0x80);
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hw->src_set_pitch(src->rsc.ctrl_blk, 0x1000000);
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hw->src_set_clear_zbufs(src->rsc.ctrl_blk, 1);
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src->rsc.ops->master(&src->rsc);
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hw->src_commit_write(hw, src->rsc.ops->index(&src->rsc),
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src->rsc.ctrl_blk);
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return 0;
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}
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static int src_default_config_arcrw(struct src *src)
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{
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struct hw *hw = src->rsc.hw;
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unsigned int rsr, msr;
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unsigned int dirty;
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hw->src_set_state(src->rsc.ctrl_blk, SRC_STATE_OFF);
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hw->src_set_bm(src->rsc.ctrl_blk, 0);
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for (rsr = 0, msr = src->rsc.msr; msr > 1; msr >>= 1)
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rsr++;
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hw->src_set_rsr(src->rsc.ctrl_blk, rsr);
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hw->src_set_sf(src->rsc.ctrl_blk, SRC_SF_F32);
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hw->src_set_wr(src->rsc.ctrl_blk, 0);
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hw->src_set_pm(src->rsc.ctrl_blk, 0);
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hw->src_set_rom(src->rsc.ctrl_blk, 0);
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hw->src_set_vo(src->rsc.ctrl_blk, 0);
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hw->src_set_st(src->rsc.ctrl_blk, 0);
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hw->src_set_ilsz(src->rsc.ctrl_blk, 0);
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hw->src_set_cisz(src->rsc.ctrl_blk, 0x80);
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hw->src_set_sa(src->rsc.ctrl_blk, 0x0);
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/*hw->src_set_sa(src->rsc.ctrl_blk, 0x100);*/
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hw->src_set_la(src->rsc.ctrl_blk, 0x1000);
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/*hw->src_set_la(src->rsc.ctrl_blk, 0x03ffffe0);*/
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hw->src_set_ca(src->rsc.ctrl_blk, 0x80);
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hw->src_set_pitch(src->rsc.ctrl_blk, 0x1000000);
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hw->src_set_clear_zbufs(src->rsc.ctrl_blk, 1);
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dirty = hw->src_get_dirty(src->rsc.ctrl_blk);
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src->rsc.ops->master(&src->rsc);
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for (msr = 0; msr < src->rsc.msr; msr++) {
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hw->src_set_dirty(src->rsc.ctrl_blk, dirty);
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hw->src_commit_write(hw, src->rsc.ops->index(&src->rsc),
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src->rsc.ctrl_blk);
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src->rsc.ops->next_conj(&src->rsc);
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}
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src->rsc.ops->master(&src->rsc);
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return 0;
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}
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static struct src_rsc_ops src_rsc_ops = {
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.set_state = src_set_state,
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.set_bm = src_set_bm,
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.set_sf = src_set_sf,
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.set_pm = src_set_pm,
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.set_rom = src_set_rom,
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.set_vo = src_set_vo,
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.set_st = src_set_st,
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.set_bp = src_set_bp,
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.set_cisz = src_set_cisz,
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.set_ca = src_set_ca,
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.set_sa = src_set_sa,
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.set_la = src_set_la,
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.set_pitch = src_set_pitch,
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.set_clr_zbufs = src_set_clear_zbufs,
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.commit_write = src_commit_write,
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.get_ca = src_get_ca,
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.init = src_init,
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.next_interleave = src_next_interleave,
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};
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static int
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src_rsc_init(struct src *src, u32 idx,
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const struct src_desc *desc, struct src_mgr *mgr)
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{
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int err;
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int i, n;
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struct src *p;
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n = (MEMRD == desc->mode) ? desc->multi : 1;
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for (i = 0, p = src; i < n; i++, p++) {
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err = rsc_init(&p->rsc, idx + i, SRC, desc->msr, mgr->mgr.hw);
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if (err)
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goto error1;
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/* Initialize src specific rsc operations */
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p->ops = &src_rsc_ops;
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p->multi = (0 == i) ? desc->multi : 1;
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p->mode = desc->mode;
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src_default_config[desc->mode](p);
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mgr->src_enable(mgr, p);
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p->intlv = p + 1;
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}
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(--p)->intlv = NULL; /* Set @intlv of the last SRC to NULL */
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mgr->commit_write(mgr);
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return 0;
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error1:
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for (i--, p--; i >= 0; i--, p--) {
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mgr->src_disable(mgr, p);
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rsc_uninit(&p->rsc);
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}
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mgr->commit_write(mgr);
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return err;
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}
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static int src_rsc_uninit(struct src *src, struct src_mgr *mgr)
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{
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int i, n;
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struct src *p;
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n = (MEMRD == src->mode) ? src->multi : 1;
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for (i = 0, p = src; i < n; i++, p++) {
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mgr->src_disable(mgr, p);
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rsc_uninit(&p->rsc);
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p->multi = 0;
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p->ops = NULL;
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p->mode = NUM_SRCMODES;
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p->intlv = NULL;
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}
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mgr->commit_write(mgr);
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return 0;
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}
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static int
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get_src_rsc(struct src_mgr *mgr, const struct src_desc *desc, struct src **rsrc)
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{
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unsigned int idx = SRC_RESOURCE_NUM;
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int err;
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struct src *src;
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unsigned long flags;
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*rsrc = NULL;
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/* Check whether there are sufficient src resources to meet request. */
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spin_lock_irqsave(&mgr->mgr_lock, flags);
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if (MEMRD == desc->mode)
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err = mgr_get_resource(&mgr->mgr, desc->multi, &idx);
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else
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err = mgr_get_resource(&mgr->mgr, 1, &idx);
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spin_unlock_irqrestore(&mgr->mgr_lock, flags);
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if (err) {
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printk(KERN_ERR "ctxfi: Can't meet SRC resource request!\n");
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return err;
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}
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/* Allocate mem for master src resource */
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if (MEMRD == desc->mode)
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src = kcalloc(desc->multi, sizeof(*src), GFP_KERNEL);
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else
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src = kzalloc(sizeof(*src), GFP_KERNEL);
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if (!src) {
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err = -ENOMEM;
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goto error1;
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}
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err = src_rsc_init(src, idx, desc, mgr);
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if (err)
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goto error2;
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*rsrc = src;
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return 0;
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error2:
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kfree(src);
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error1:
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spin_lock_irqsave(&mgr->mgr_lock, flags);
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if (MEMRD == desc->mode)
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mgr_put_resource(&mgr->mgr, desc->multi, idx);
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else
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mgr_put_resource(&mgr->mgr, 1, idx);
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spin_unlock_irqrestore(&mgr->mgr_lock, flags);
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return err;
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}
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static int put_src_rsc(struct src_mgr *mgr, struct src *src)
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{
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unsigned long flags;
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spin_lock_irqsave(&mgr->mgr_lock, flags);
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src->rsc.ops->master(&src->rsc);
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if (MEMRD == src->mode)
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mgr_put_resource(&mgr->mgr, src->multi,
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src->rsc.ops->index(&src->rsc));
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else
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mgr_put_resource(&mgr->mgr, 1, src->rsc.ops->index(&src->rsc));
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spin_unlock_irqrestore(&mgr->mgr_lock, flags);
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src_rsc_uninit(src, mgr);
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kfree(src);
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return 0;
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}
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static int src_enable_s(struct src_mgr *mgr, struct src *src)
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{
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struct hw *hw = mgr->mgr.hw;
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int i;
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src->rsc.ops->master(&src->rsc);
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for (i = 0; i < src->rsc.msr; i++) {
|
|
hw->src_mgr_enbs_src(mgr->mgr.ctrl_blk,
|
|
src->rsc.ops->index(&src->rsc));
|
|
src->rsc.ops->next_conj(&src->rsc);
|
|
}
|
|
src->rsc.ops->master(&src->rsc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int src_enable(struct src_mgr *mgr, struct src *src)
|
|
{
|
|
struct hw *hw = mgr->mgr.hw;
|
|
int i;
|
|
|
|
src->rsc.ops->master(&src->rsc);
|
|
for (i = 0; i < src->rsc.msr; i++) {
|
|
hw->src_mgr_enb_src(mgr->mgr.ctrl_blk,
|
|
src->rsc.ops->index(&src->rsc));
|
|
src->rsc.ops->next_conj(&src->rsc);
|
|
}
|
|
src->rsc.ops->master(&src->rsc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int src_disable(struct src_mgr *mgr, struct src *src)
|
|
{
|
|
struct hw *hw = mgr->mgr.hw;
|
|
int i;
|
|
|
|
src->rsc.ops->master(&src->rsc);
|
|
for (i = 0; i < src->rsc.msr; i++) {
|
|
hw->src_mgr_dsb_src(mgr->mgr.ctrl_blk,
|
|
src->rsc.ops->index(&src->rsc));
|
|
src->rsc.ops->next_conj(&src->rsc);
|
|
}
|
|
src->rsc.ops->master(&src->rsc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int src_mgr_commit_write(struct src_mgr *mgr)
|
|
{
|
|
struct hw *hw = mgr->mgr.hw;
|
|
|
|
hw->src_mgr_commit_write(hw, mgr->mgr.ctrl_blk);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int src_mgr_create(void *hw, struct src_mgr **rsrc_mgr)
|
|
{
|
|
int err, i;
|
|
struct src_mgr *src_mgr;
|
|
|
|
*rsrc_mgr = NULL;
|
|
src_mgr = kzalloc(sizeof(*src_mgr), GFP_KERNEL);
|
|
if (!src_mgr)
|
|
return -ENOMEM;
|
|
|
|
err = rsc_mgr_init(&src_mgr->mgr, SRC, SRC_RESOURCE_NUM, hw);
|
|
if (err)
|
|
goto error1;
|
|
|
|
spin_lock_init(&src_mgr->mgr_lock);
|
|
conj_mask = ((struct hw *)hw)->src_dirty_conj_mask();
|
|
|
|
src_mgr->get_src = get_src_rsc;
|
|
src_mgr->put_src = put_src_rsc;
|
|
src_mgr->src_enable_s = src_enable_s;
|
|
src_mgr->src_enable = src_enable;
|
|
src_mgr->src_disable = src_disable;
|
|
src_mgr->commit_write = src_mgr_commit_write;
|
|
|
|
/* Disable all SRC resources. */
|
|
for (i = 0; i < 256; i++)
|
|
((struct hw *)hw)->src_mgr_dsb_src(src_mgr->mgr.ctrl_blk, i);
|
|
|
|
((struct hw *)hw)->src_mgr_commit_write(hw, src_mgr->mgr.ctrl_blk);
|
|
|
|
*rsrc_mgr = src_mgr;
|
|
|
|
return 0;
|
|
|
|
error1:
|
|
kfree(src_mgr);
|
|
return err;
|
|
}
|
|
|
|
int src_mgr_destroy(struct src_mgr *src_mgr)
|
|
{
|
|
rsc_mgr_uninit(&src_mgr->mgr);
|
|
kfree(src_mgr);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* SRCIMP resource manager operations */
|
|
|
|
static int srcimp_master(struct rsc *rsc)
|
|
{
|
|
rsc->conj = 0;
|
|
return rsc->idx = container_of(rsc, struct srcimp, rsc)->idx[0];
|
|
}
|
|
|
|
static int srcimp_next_conj(struct rsc *rsc)
|
|
{
|
|
rsc->conj++;
|
|
return container_of(rsc, struct srcimp, rsc)->idx[rsc->conj];
|
|
}
|
|
|
|
static int srcimp_index(const struct rsc *rsc)
|
|
{
|
|
return container_of(rsc, struct srcimp, rsc)->idx[rsc->conj];
|
|
}
|
|
|
|
static struct rsc_ops srcimp_basic_rsc_ops = {
|
|
.master = srcimp_master,
|
|
.next_conj = srcimp_next_conj,
|
|
.index = srcimp_index,
|
|
.output_slot = NULL,
|
|
};
|
|
|
|
static int srcimp_map(struct srcimp *srcimp, struct src *src, struct rsc *input)
|
|
{
|
|
struct imapper *entry;
|
|
int i;
|
|
|
|
srcimp->rsc.ops->master(&srcimp->rsc);
|
|
src->rsc.ops->master(&src->rsc);
|
|
input->ops->master(input);
|
|
|
|
/* Program master and conjugate resources */
|
|
for (i = 0; i < srcimp->rsc.msr; i++) {
|
|
entry = &srcimp->imappers[i];
|
|
entry->slot = input->ops->output_slot(input);
|
|
entry->user = src->rsc.ops->index(&src->rsc);
|
|
entry->addr = srcimp->rsc.ops->index(&srcimp->rsc);
|
|
srcimp->mgr->imap_add(srcimp->mgr, entry);
|
|
srcimp->mapped |= (0x1 << i);
|
|
|
|
srcimp->rsc.ops->next_conj(&srcimp->rsc);
|
|
input->ops->next_conj(input);
|
|
}
|
|
|
|
srcimp->rsc.ops->master(&srcimp->rsc);
|
|
input->ops->master(input);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int srcimp_unmap(struct srcimp *srcimp)
|
|
{
|
|
int i;
|
|
|
|
/* Program master and conjugate resources */
|
|
for (i = 0; i < srcimp->rsc.msr; i++) {
|
|
if (srcimp->mapped & (0x1 << i)) {
|
|
srcimp->mgr->imap_delete(srcimp->mgr,
|
|
&srcimp->imappers[i]);
|
|
srcimp->mapped &= ~(0x1 << i);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct srcimp_rsc_ops srcimp_ops = {
|
|
.map = srcimp_map,
|
|
.unmap = srcimp_unmap
|
|
};
|
|
|
|
static int srcimp_rsc_init(struct srcimp *srcimp,
|
|
const struct srcimp_desc *desc,
|
|
struct srcimp_mgr *mgr)
|
|
{
|
|
int err;
|
|
|
|
err = rsc_init(&srcimp->rsc, srcimp->idx[0],
|
|
SRCIMP, desc->msr, mgr->mgr.hw);
|
|
if (err)
|
|
return err;
|
|
|
|
/* Reserve memory for imapper nodes */
|
|
srcimp->imappers = kzalloc(sizeof(struct imapper)*desc->msr,
|
|
GFP_KERNEL);
|
|
if (!srcimp->imappers) {
|
|
err = -ENOMEM;
|
|
goto error1;
|
|
}
|
|
|
|
/* Set srcimp specific operations */
|
|
srcimp->rsc.ops = &srcimp_basic_rsc_ops;
|
|
srcimp->ops = &srcimp_ops;
|
|
srcimp->mgr = mgr;
|
|
|
|
srcimp->rsc.ops->master(&srcimp->rsc);
|
|
|
|
return 0;
|
|
|
|
error1:
|
|
rsc_uninit(&srcimp->rsc);
|
|
return err;
|
|
}
|
|
|
|
static int srcimp_rsc_uninit(struct srcimp *srcimp)
|
|
{
|
|
if (NULL != srcimp->imappers) {
|
|
kfree(srcimp->imappers);
|
|
srcimp->imappers = NULL;
|
|
}
|
|
srcimp->ops = NULL;
|
|
srcimp->mgr = NULL;
|
|
rsc_uninit(&srcimp->rsc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int get_srcimp_rsc(struct srcimp_mgr *mgr,
|
|
const struct srcimp_desc *desc,
|
|
struct srcimp **rsrcimp)
|
|
{
|
|
int err, i;
|
|
unsigned int idx;
|
|
struct srcimp *srcimp;
|
|
unsigned long flags;
|
|
|
|
*rsrcimp = NULL;
|
|
|
|
/* Allocate mem for SRCIMP resource */
|
|
srcimp = kzalloc(sizeof(*srcimp), GFP_KERNEL);
|
|
if (!srcimp)
|
|
return -ENOMEM;
|
|
|
|
/* Check whether there are sufficient SRCIMP resources. */
|
|
err = 0;
|
|
spin_lock_irqsave(&mgr->mgr_lock, flags);
|
|
for (i = 0; i < desc->msr; i++) {
|
|
err = mgr_get_resource(&mgr->mgr, 1, &idx);
|
|
if (err)
|
|
break;
|
|
|
|
srcimp->idx[i] = idx;
|
|
}
|
|
spin_unlock_irqrestore(&mgr->mgr_lock, flags);
|
|
if (err) {
|
|
printk(KERN_ERR "ctxfi: Can't meet SRCIMP resource request!\n");
|
|
goto error1;
|
|
}
|
|
|
|
err = srcimp_rsc_init(srcimp, desc, mgr);
|
|
if (err)
|
|
goto error1;
|
|
|
|
*rsrcimp = srcimp;
|
|
|
|
return 0;
|
|
|
|
error1:
|
|
spin_lock_irqsave(&mgr->mgr_lock, flags);
|
|
for (i--; i >= 0; i--)
|
|
mgr_put_resource(&mgr->mgr, 1, srcimp->idx[i]);
|
|
|
|
spin_unlock_irqrestore(&mgr->mgr_lock, flags);
|
|
kfree(srcimp);
|
|
return err;
|
|
}
|
|
|
|
static int put_srcimp_rsc(struct srcimp_mgr *mgr, struct srcimp *srcimp)
|
|
{
|
|
unsigned long flags;
|
|
int i;
|
|
|
|
spin_lock_irqsave(&mgr->mgr_lock, flags);
|
|
for (i = 0; i < srcimp->rsc.msr; i++)
|
|
mgr_put_resource(&mgr->mgr, 1, srcimp->idx[i]);
|
|
|
|
spin_unlock_irqrestore(&mgr->mgr_lock, flags);
|
|
srcimp_rsc_uninit(srcimp);
|
|
kfree(srcimp);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int srcimp_map_op(void *data, struct imapper *entry)
|
|
{
|
|
struct rsc_mgr *mgr = &((struct srcimp_mgr *)data)->mgr;
|
|
struct hw *hw = mgr->hw;
|
|
|
|
hw->srcimp_mgr_set_imaparc(mgr->ctrl_blk, entry->slot);
|
|
hw->srcimp_mgr_set_imapuser(mgr->ctrl_blk, entry->user);
|
|
hw->srcimp_mgr_set_imapnxt(mgr->ctrl_blk, entry->next);
|
|
hw->srcimp_mgr_set_imapaddr(mgr->ctrl_blk, entry->addr);
|
|
hw->srcimp_mgr_commit_write(mgr->hw, mgr->ctrl_blk);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int srcimp_imap_add(struct srcimp_mgr *mgr, struct imapper *entry)
|
|
{
|
|
unsigned long flags;
|
|
int err;
|
|
|
|
spin_lock_irqsave(&mgr->imap_lock, flags);
|
|
if ((0 == entry->addr) && (mgr->init_imap_added)) {
|
|
input_mapper_delete(&mgr->imappers,
|
|
mgr->init_imap, srcimp_map_op, mgr);
|
|
mgr->init_imap_added = 0;
|
|
}
|
|
err = input_mapper_add(&mgr->imappers, entry, srcimp_map_op, mgr);
|
|
spin_unlock_irqrestore(&mgr->imap_lock, flags);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int srcimp_imap_delete(struct srcimp_mgr *mgr, struct imapper *entry)
|
|
{
|
|
unsigned long flags;
|
|
int err;
|
|
|
|
spin_lock_irqsave(&mgr->imap_lock, flags);
|
|
err = input_mapper_delete(&mgr->imappers, entry, srcimp_map_op, mgr);
|
|
if (list_empty(&mgr->imappers)) {
|
|
input_mapper_add(&mgr->imappers, mgr->init_imap,
|
|
srcimp_map_op, mgr);
|
|
mgr->init_imap_added = 1;
|
|
}
|
|
spin_unlock_irqrestore(&mgr->imap_lock, flags);
|
|
|
|
return err;
|
|
}
|
|
|
|
int srcimp_mgr_create(void *hw, struct srcimp_mgr **rsrcimp_mgr)
|
|
{
|
|
int err;
|
|
struct srcimp_mgr *srcimp_mgr;
|
|
struct imapper *entry;
|
|
|
|
*rsrcimp_mgr = NULL;
|
|
srcimp_mgr = kzalloc(sizeof(*srcimp_mgr), GFP_KERNEL);
|
|
if (!srcimp_mgr)
|
|
return -ENOMEM;
|
|
|
|
err = rsc_mgr_init(&srcimp_mgr->mgr, SRCIMP, SRCIMP_RESOURCE_NUM, hw);
|
|
if (err)
|
|
goto error1;
|
|
|
|
spin_lock_init(&srcimp_mgr->mgr_lock);
|
|
spin_lock_init(&srcimp_mgr->imap_lock);
|
|
INIT_LIST_HEAD(&srcimp_mgr->imappers);
|
|
entry = kzalloc(sizeof(*entry), GFP_KERNEL);
|
|
if (!entry) {
|
|
err = -ENOMEM;
|
|
goto error2;
|
|
}
|
|
entry->slot = entry->addr = entry->next = entry->user = 0;
|
|
list_add(&entry->list, &srcimp_mgr->imappers);
|
|
srcimp_mgr->init_imap = entry;
|
|
srcimp_mgr->init_imap_added = 1;
|
|
|
|
srcimp_mgr->get_srcimp = get_srcimp_rsc;
|
|
srcimp_mgr->put_srcimp = put_srcimp_rsc;
|
|
srcimp_mgr->imap_add = srcimp_imap_add;
|
|
srcimp_mgr->imap_delete = srcimp_imap_delete;
|
|
|
|
*rsrcimp_mgr = srcimp_mgr;
|
|
|
|
return 0;
|
|
|
|
error2:
|
|
rsc_mgr_uninit(&srcimp_mgr->mgr);
|
|
error1:
|
|
kfree(srcimp_mgr);
|
|
return err;
|
|
}
|
|
|
|
int srcimp_mgr_destroy(struct srcimp_mgr *srcimp_mgr)
|
|
{
|
|
unsigned long flags;
|
|
|
|
/* free src input mapper list */
|
|
spin_lock_irqsave(&srcimp_mgr->imap_lock, flags);
|
|
free_input_mapper_list(&srcimp_mgr->imappers);
|
|
spin_unlock_irqrestore(&srcimp_mgr->imap_lock, flags);
|
|
|
|
rsc_mgr_uninit(&srcimp_mgr->mgr);
|
|
kfree(srcimp_mgr);
|
|
|
|
return 0;
|
|
}
|