mirror of
https://github.com/torvalds/linux.git
synced 2024-11-25 13:41:51 +00:00
aabdedf4d2
This driver creates an abstraction for different components by casting function
pointers to slightly incompatible types for each one to get the correct
argument even when the caller does not know those types. This is a
bit unreliable and not allowed in combination with control flow integrity
(KCFI):
sound/pci/ctxfi/ctatc.c:115:25: error: cast from 'int (*)(struct hw *, struct src_mgr **)' to 'create_t' (aka 'int (*)(struct hw *, void **)') converts to incompatible function type [-Werror,-Wcast-function-type-strict]
115 | [SRC] = { .create = (create_t)src_mgr_create,
| ^~~~~~~~~~~~~~~~~~~~~~~~
sound/pci/ctxfi/ctatc.c:116:20: error: cast from 'int (*)(struct src_mgr *)' to 'destroy_t' (aka 'int (*)(void *)') converts to incompatible function type [-Werror,-Wcast-function-type-strict]
116 | .destroy = (destroy_t)src_mgr_destroy },
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
sound/pci/ctxfi/ctatc.c:117:27: error: cast from 'int (*)(struct hw *, struct srcimp_mgr **)' to 'create_t' (aka 'int (*)(struct hw *, void **)') converts to incompatible function type [-Werror,-Wcast-function-type-strict]
117 | [SRCIMP] = { .create = (create_t)srcimp_mgr_create,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
sound/pci/ctxfi/ctatc.c:118:20: error: cast from 'int (*)(struct srcimp_mgr *)' to 'destroy_t' (aka 'int (*)(void *)') converts to incompatible function type [-Werror,-Wcast-function-type-strict]
118 | .destroy = (destroy_t)srcimp_mgr_destroy },
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Change these to always pass void pointers and move the abstraction one level
down.
Fixes: 8cc7236148 ("ALSA: SB X-Fi driver merge")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20240213101303.460008-1-arnd@kernel.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
885 lines
19 KiB
C
885 lines
19 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
|
|
*
|
|
* @File ctsrc.c
|
|
*
|
|
* @Brief
|
|
* This file contains the implementation of the Sample Rate Convertor
|
|
* resource management object.
|
|
*
|
|
* @Author Liu Chun
|
|
* @Date May 13 2008
|
|
*/
|
|
|
|
#include "ctsrc.h"
|
|
#include "cthardware.h"
|
|
#include <linux/slab.h>
|
|
|
|
#define SRC_RESOURCE_NUM 256
|
|
#define SRCIMP_RESOURCE_NUM 256
|
|
|
|
static unsigned int conj_mask;
|
|
|
|
static int src_default_config_memrd(struct src *src);
|
|
static int src_default_config_memwr(struct src *src);
|
|
static int src_default_config_arcrw(struct src *src);
|
|
|
|
static int (*src_default_config[3])(struct src *) = {
|
|
[MEMRD] = src_default_config_memrd,
|
|
[MEMWR] = src_default_config_memwr,
|
|
[ARCRW] = src_default_config_arcrw
|
|
};
|
|
|
|
static int src_set_state(struct src *src, unsigned int state)
|
|
{
|
|
struct hw *hw;
|
|
|
|
hw = src->rsc.hw;
|
|
hw->src_set_state(src->rsc.ctrl_blk, state);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int src_set_bm(struct src *src, unsigned int bm)
|
|
{
|
|
struct hw *hw;
|
|
|
|
hw = src->rsc.hw;
|
|
hw->src_set_bm(src->rsc.ctrl_blk, bm);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int src_set_sf(struct src *src, unsigned int sf)
|
|
{
|
|
struct hw *hw;
|
|
|
|
hw = src->rsc.hw;
|
|
hw->src_set_sf(src->rsc.ctrl_blk, sf);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int src_set_pm(struct src *src, unsigned int pm)
|
|
{
|
|
struct hw *hw;
|
|
|
|
hw = src->rsc.hw;
|
|
hw->src_set_pm(src->rsc.ctrl_blk, pm);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int src_set_rom(struct src *src, unsigned int rom)
|
|
{
|
|
struct hw *hw;
|
|
|
|
hw = src->rsc.hw;
|
|
hw->src_set_rom(src->rsc.ctrl_blk, rom);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int src_set_vo(struct src *src, unsigned int vo)
|
|
{
|
|
struct hw *hw;
|
|
|
|
hw = src->rsc.hw;
|
|
hw->src_set_vo(src->rsc.ctrl_blk, vo);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int src_set_st(struct src *src, unsigned int st)
|
|
{
|
|
struct hw *hw;
|
|
|
|
hw = src->rsc.hw;
|
|
hw->src_set_st(src->rsc.ctrl_blk, st);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int src_set_bp(struct src *src, unsigned int bp)
|
|
{
|
|
struct hw *hw;
|
|
|
|
hw = src->rsc.hw;
|
|
hw->src_set_bp(src->rsc.ctrl_blk, bp);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int src_set_cisz(struct src *src, unsigned int cisz)
|
|
{
|
|
struct hw *hw;
|
|
|
|
hw = src->rsc.hw;
|
|
hw->src_set_cisz(src->rsc.ctrl_blk, cisz);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int src_set_ca(struct src *src, unsigned int ca)
|
|
{
|
|
struct hw *hw;
|
|
|
|
hw = src->rsc.hw;
|
|
hw->src_set_ca(src->rsc.ctrl_blk, ca);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int src_set_sa(struct src *src, unsigned int sa)
|
|
{
|
|
struct hw *hw;
|
|
|
|
hw = src->rsc.hw;
|
|
hw->src_set_sa(src->rsc.ctrl_blk, sa);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int src_set_la(struct src *src, unsigned int la)
|
|
{
|
|
struct hw *hw;
|
|
|
|
hw = src->rsc.hw;
|
|
hw->src_set_la(src->rsc.ctrl_blk, la);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int src_set_pitch(struct src *src, unsigned int pitch)
|
|
{
|
|
struct hw *hw;
|
|
|
|
hw = src->rsc.hw;
|
|
hw->src_set_pitch(src->rsc.ctrl_blk, pitch);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int src_set_clear_zbufs(struct src *src)
|
|
{
|
|
struct hw *hw;
|
|
|
|
hw = src->rsc.hw;
|
|
hw->src_set_clear_zbufs(src->rsc.ctrl_blk, 1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int src_commit_write(struct src *src)
|
|
{
|
|
struct hw *hw;
|
|
int i;
|
|
unsigned int dirty = 0;
|
|
|
|
hw = src->rsc.hw;
|
|
src->rsc.ops->master(&src->rsc);
|
|
if (src->rsc.msr > 1) {
|
|
/* Save dirty flags for conjugate resource programming */
|
|
dirty = hw->src_get_dirty(src->rsc.ctrl_blk) & conj_mask;
|
|
}
|
|
hw->src_commit_write(hw, src->rsc.ops->index(&src->rsc),
|
|
src->rsc.ctrl_blk);
|
|
|
|
/* Program conjugate parameter mixer resources */
|
|
if (MEMWR == src->mode)
|
|
return 0;
|
|
|
|
for (i = 1; i < src->rsc.msr; i++) {
|
|
src->rsc.ops->next_conj(&src->rsc);
|
|
hw->src_set_dirty(src->rsc.ctrl_blk, dirty);
|
|
hw->src_commit_write(hw, src->rsc.ops->index(&src->rsc),
|
|
src->rsc.ctrl_blk);
|
|
}
|
|
src->rsc.ops->master(&src->rsc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int src_get_ca(struct src *src)
|
|
{
|
|
struct hw *hw;
|
|
|
|
hw = src->rsc.hw;
|
|
return hw->src_get_ca(hw, src->rsc.ops->index(&src->rsc),
|
|
src->rsc.ctrl_blk);
|
|
}
|
|
|
|
static int src_init(struct src *src)
|
|
{
|
|
src_default_config[src->mode](src);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct src *src_next_interleave(struct src *src)
|
|
{
|
|
return src->intlv;
|
|
}
|
|
|
|
static int src_default_config_memrd(struct src *src)
|
|
{
|
|
struct hw *hw = src->rsc.hw;
|
|
unsigned int rsr, msr;
|
|
|
|
hw->src_set_state(src->rsc.ctrl_blk, SRC_STATE_OFF);
|
|
hw->src_set_bm(src->rsc.ctrl_blk, 1);
|
|
for (rsr = 0, msr = src->rsc.msr; msr > 1; msr >>= 1)
|
|
rsr++;
|
|
|
|
hw->src_set_rsr(src->rsc.ctrl_blk, rsr);
|
|
hw->src_set_sf(src->rsc.ctrl_blk, SRC_SF_S16);
|
|
hw->src_set_wr(src->rsc.ctrl_blk, 0);
|
|
hw->src_set_pm(src->rsc.ctrl_blk, 0);
|
|
hw->src_set_rom(src->rsc.ctrl_blk, 0);
|
|
hw->src_set_vo(src->rsc.ctrl_blk, 0);
|
|
hw->src_set_st(src->rsc.ctrl_blk, 0);
|
|
hw->src_set_ilsz(src->rsc.ctrl_blk, src->multi - 1);
|
|
hw->src_set_cisz(src->rsc.ctrl_blk, 0x80);
|
|
hw->src_set_sa(src->rsc.ctrl_blk, 0x0);
|
|
hw->src_set_la(src->rsc.ctrl_blk, 0x1000);
|
|
hw->src_set_ca(src->rsc.ctrl_blk, 0x80);
|
|
hw->src_set_pitch(src->rsc.ctrl_blk, 0x1000000);
|
|
hw->src_set_clear_zbufs(src->rsc.ctrl_blk, 1);
|
|
|
|
src->rsc.ops->master(&src->rsc);
|
|
hw->src_commit_write(hw, src->rsc.ops->index(&src->rsc),
|
|
src->rsc.ctrl_blk);
|
|
|
|
for (msr = 1; msr < src->rsc.msr; msr++) {
|
|
src->rsc.ops->next_conj(&src->rsc);
|
|
hw->src_set_pitch(src->rsc.ctrl_blk, 0x1000000);
|
|
hw->src_commit_write(hw, src->rsc.ops->index(&src->rsc),
|
|
src->rsc.ctrl_blk);
|
|
}
|
|
src->rsc.ops->master(&src->rsc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int src_default_config_memwr(struct src *src)
|
|
{
|
|
struct hw *hw = src->rsc.hw;
|
|
|
|
hw->src_set_state(src->rsc.ctrl_blk, SRC_STATE_OFF);
|
|
hw->src_set_bm(src->rsc.ctrl_blk, 1);
|
|
hw->src_set_rsr(src->rsc.ctrl_blk, 0);
|
|
hw->src_set_sf(src->rsc.ctrl_blk, SRC_SF_S16);
|
|
hw->src_set_wr(src->rsc.ctrl_blk, 1);
|
|
hw->src_set_pm(src->rsc.ctrl_blk, 0);
|
|
hw->src_set_rom(src->rsc.ctrl_blk, 0);
|
|
hw->src_set_vo(src->rsc.ctrl_blk, 0);
|
|
hw->src_set_st(src->rsc.ctrl_blk, 0);
|
|
hw->src_set_ilsz(src->rsc.ctrl_blk, 0);
|
|
hw->src_set_cisz(src->rsc.ctrl_blk, 0x80);
|
|
hw->src_set_sa(src->rsc.ctrl_blk, 0x0);
|
|
hw->src_set_la(src->rsc.ctrl_blk, 0x1000);
|
|
hw->src_set_ca(src->rsc.ctrl_blk, 0x80);
|
|
hw->src_set_pitch(src->rsc.ctrl_blk, 0x1000000);
|
|
hw->src_set_clear_zbufs(src->rsc.ctrl_blk, 1);
|
|
|
|
src->rsc.ops->master(&src->rsc);
|
|
hw->src_commit_write(hw, src->rsc.ops->index(&src->rsc),
|
|
src->rsc.ctrl_blk);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int src_default_config_arcrw(struct src *src)
|
|
{
|
|
struct hw *hw = src->rsc.hw;
|
|
unsigned int rsr, msr;
|
|
unsigned int dirty;
|
|
|
|
hw->src_set_state(src->rsc.ctrl_blk, SRC_STATE_OFF);
|
|
hw->src_set_bm(src->rsc.ctrl_blk, 0);
|
|
for (rsr = 0, msr = src->rsc.msr; msr > 1; msr >>= 1)
|
|
rsr++;
|
|
|
|
hw->src_set_rsr(src->rsc.ctrl_blk, rsr);
|
|
hw->src_set_sf(src->rsc.ctrl_blk, SRC_SF_F32);
|
|
hw->src_set_wr(src->rsc.ctrl_blk, 0);
|
|
hw->src_set_pm(src->rsc.ctrl_blk, 0);
|
|
hw->src_set_rom(src->rsc.ctrl_blk, 0);
|
|
hw->src_set_vo(src->rsc.ctrl_blk, 0);
|
|
hw->src_set_st(src->rsc.ctrl_blk, 0);
|
|
hw->src_set_ilsz(src->rsc.ctrl_blk, 0);
|
|
hw->src_set_cisz(src->rsc.ctrl_blk, 0x80);
|
|
hw->src_set_sa(src->rsc.ctrl_blk, 0x0);
|
|
/*hw->src_set_sa(src->rsc.ctrl_blk, 0x100);*/
|
|
hw->src_set_la(src->rsc.ctrl_blk, 0x1000);
|
|
/*hw->src_set_la(src->rsc.ctrl_blk, 0x03ffffe0);*/
|
|
hw->src_set_ca(src->rsc.ctrl_blk, 0x80);
|
|
hw->src_set_pitch(src->rsc.ctrl_blk, 0x1000000);
|
|
hw->src_set_clear_zbufs(src->rsc.ctrl_blk, 1);
|
|
|
|
dirty = hw->src_get_dirty(src->rsc.ctrl_blk);
|
|
src->rsc.ops->master(&src->rsc);
|
|
for (msr = 0; msr < src->rsc.msr; msr++) {
|
|
hw->src_set_dirty(src->rsc.ctrl_blk, dirty);
|
|
hw->src_commit_write(hw, src->rsc.ops->index(&src->rsc),
|
|
src->rsc.ctrl_blk);
|
|
src->rsc.ops->next_conj(&src->rsc);
|
|
}
|
|
src->rsc.ops->master(&src->rsc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct src_rsc_ops src_rsc_ops = {
|
|
.set_state = src_set_state,
|
|
.set_bm = src_set_bm,
|
|
.set_sf = src_set_sf,
|
|
.set_pm = src_set_pm,
|
|
.set_rom = src_set_rom,
|
|
.set_vo = src_set_vo,
|
|
.set_st = src_set_st,
|
|
.set_bp = src_set_bp,
|
|
.set_cisz = src_set_cisz,
|
|
.set_ca = src_set_ca,
|
|
.set_sa = src_set_sa,
|
|
.set_la = src_set_la,
|
|
.set_pitch = src_set_pitch,
|
|
.set_clr_zbufs = src_set_clear_zbufs,
|
|
.commit_write = src_commit_write,
|
|
.get_ca = src_get_ca,
|
|
.init = src_init,
|
|
.next_interleave = src_next_interleave,
|
|
};
|
|
|
|
static int
|
|
src_rsc_init(struct src *src, u32 idx,
|
|
const struct src_desc *desc, struct src_mgr *mgr)
|
|
{
|
|
int err;
|
|
int i, n;
|
|
struct src *p;
|
|
|
|
n = (MEMRD == desc->mode) ? desc->multi : 1;
|
|
for (i = 0, p = src; i < n; i++, p++) {
|
|
err = rsc_init(&p->rsc, idx + i, SRC, desc->msr, mgr->mgr.hw);
|
|
if (err)
|
|
goto error1;
|
|
|
|
/* Initialize src specific rsc operations */
|
|
p->ops = &src_rsc_ops;
|
|
p->multi = (0 == i) ? desc->multi : 1;
|
|
p->mode = desc->mode;
|
|
src_default_config[desc->mode](p);
|
|
mgr->src_enable(mgr, p);
|
|
p->intlv = p + 1;
|
|
}
|
|
(--p)->intlv = NULL; /* Set @intlv of the last SRC to NULL */
|
|
|
|
mgr->commit_write(mgr);
|
|
|
|
return 0;
|
|
|
|
error1:
|
|
for (i--, p--; i >= 0; i--, p--) {
|
|
mgr->src_disable(mgr, p);
|
|
rsc_uninit(&p->rsc);
|
|
}
|
|
mgr->commit_write(mgr);
|
|
return err;
|
|
}
|
|
|
|
static int src_rsc_uninit(struct src *src, struct src_mgr *mgr)
|
|
{
|
|
int i, n;
|
|
struct src *p;
|
|
|
|
n = (MEMRD == src->mode) ? src->multi : 1;
|
|
for (i = 0, p = src; i < n; i++, p++) {
|
|
mgr->src_disable(mgr, p);
|
|
rsc_uninit(&p->rsc);
|
|
p->multi = 0;
|
|
p->ops = NULL;
|
|
p->mode = NUM_SRCMODES;
|
|
p->intlv = NULL;
|
|
}
|
|
mgr->commit_write(mgr);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
get_src_rsc(struct src_mgr *mgr, const struct src_desc *desc, struct src **rsrc)
|
|
{
|
|
unsigned int idx = SRC_RESOURCE_NUM;
|
|
int err;
|
|
struct src *src;
|
|
unsigned long flags;
|
|
|
|
*rsrc = NULL;
|
|
|
|
/* Check whether there are sufficient src resources to meet request. */
|
|
spin_lock_irqsave(&mgr->mgr_lock, flags);
|
|
if (MEMRD == desc->mode)
|
|
err = mgr_get_resource(&mgr->mgr, desc->multi, &idx);
|
|
else
|
|
err = mgr_get_resource(&mgr->mgr, 1, &idx);
|
|
|
|
spin_unlock_irqrestore(&mgr->mgr_lock, flags);
|
|
if (err) {
|
|
dev_err(mgr->card->dev,
|
|
"Can't meet SRC resource request!\n");
|
|
return err;
|
|
}
|
|
|
|
/* Allocate mem for master src resource */
|
|
if (MEMRD == desc->mode)
|
|
src = kcalloc(desc->multi, sizeof(*src), GFP_KERNEL);
|
|
else
|
|
src = kzalloc(sizeof(*src), GFP_KERNEL);
|
|
|
|
if (!src) {
|
|
err = -ENOMEM;
|
|
goto error1;
|
|
}
|
|
|
|
err = src_rsc_init(src, idx, desc, mgr);
|
|
if (err)
|
|
goto error2;
|
|
|
|
*rsrc = src;
|
|
|
|
return 0;
|
|
|
|
error2:
|
|
kfree(src);
|
|
error1:
|
|
spin_lock_irqsave(&mgr->mgr_lock, flags);
|
|
if (MEMRD == desc->mode)
|
|
mgr_put_resource(&mgr->mgr, desc->multi, idx);
|
|
else
|
|
mgr_put_resource(&mgr->mgr, 1, idx);
|
|
|
|
spin_unlock_irqrestore(&mgr->mgr_lock, flags);
|
|
return err;
|
|
}
|
|
|
|
static int put_src_rsc(struct src_mgr *mgr, struct src *src)
|
|
{
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&mgr->mgr_lock, flags);
|
|
src->rsc.ops->master(&src->rsc);
|
|
if (MEMRD == src->mode)
|
|
mgr_put_resource(&mgr->mgr, src->multi,
|
|
src->rsc.ops->index(&src->rsc));
|
|
else
|
|
mgr_put_resource(&mgr->mgr, 1, src->rsc.ops->index(&src->rsc));
|
|
|
|
spin_unlock_irqrestore(&mgr->mgr_lock, flags);
|
|
src_rsc_uninit(src, mgr);
|
|
kfree(src);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int src_enable_s(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_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(struct hw *hw, void **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 = 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;
|
|
src_mgr->card = hw->card;
|
|
|
|
/* Disable all SRC resources. */
|
|
for (i = 0; i < 256; i++)
|
|
hw->src_mgr_dsb_src(src_mgr->mgr.ctrl_blk, i);
|
|
|
|
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(void *ptr)
|
|
{
|
|
struct src_mgr *src_mgr = ptr;
|
|
rsc_mgr_uninit(&src_mgr->mgr);
|
|
kfree(src_mgr);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* SRCIMP resource manager operations */
|
|
|
|
static void srcimp_master(struct rsc *rsc)
|
|
{
|
|
rsc->conj = 0;
|
|
rsc->idx = container_of(rsc, struct srcimp, rsc)->idx[0];
|
|
}
|
|
|
|
static void srcimp_next_conj(struct rsc *rsc)
|
|
{
|
|
rsc->conj++;
|
|
}
|
|
|
|
static int srcimp_index(const struct rsc *rsc)
|
|
{
|
|
return container_of(rsc, struct srcimp, rsc)->idx[rsc->conj];
|
|
}
|
|
|
|
static const 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 const 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 = kcalloc(desc->msr, sizeof(struct imapper),
|
|
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)
|
|
{
|
|
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) {
|
|
dev_err(mgr->card->dev,
|
|
"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(struct hw *hw, void **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;
|
|
srcimp_mgr->card = hw->card;
|
|
|
|
*rsrcimp_mgr = srcimp_mgr;
|
|
|
|
return 0;
|
|
|
|
error2:
|
|
rsc_mgr_uninit(&srcimp_mgr->mgr);
|
|
error1:
|
|
kfree(srcimp_mgr);
|
|
return err;
|
|
}
|
|
|
|
int srcimp_mgr_destroy(void *ptr)
|
|
{
|
|
struct srcimp_mgr *srcimp_mgr = ptr;
|
|
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;
|
|
}
|