373 lines
11 KiB
C
373 lines
11 KiB
C
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/*
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* cx18 mailbox functions
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*
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* Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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* 02111-1307 USA
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*/
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#include <stdarg.h>
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#include "cx18-driver.h"
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#include "cx18-scb.h"
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#include "cx18-irq.h"
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#include "cx18-mailbox.h"
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#define API_FAST (1 << 2) /* Short timeout */
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#define API_SLOW (1 << 3) /* Additional 300ms timeout */
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#define APU 0
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#define CPU 1
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#define EPU 2
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#define HPU 3
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struct cx18_api_info {
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u32 cmd;
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u8 flags; /* Flags, see above */
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u8 rpu; /* Processing unit */
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const char *name; /* The name of the command */
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};
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#define API_ENTRY(rpu, x, f) { (x), (f), (rpu), #x }
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static const struct cx18_api_info api_info[] = {
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/* MPEG encoder API */
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API_ENTRY(CPU, CX18_CPU_SET_CHANNEL_TYPE, 0),
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API_ENTRY(CPU, CX18_EPU_DEBUG, 0),
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API_ENTRY(CPU, CX18_CREATE_TASK, 0),
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API_ENTRY(CPU, CX18_DESTROY_TASK, 0),
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API_ENTRY(CPU, CX18_CPU_CAPTURE_START, API_SLOW),
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API_ENTRY(CPU, CX18_CPU_CAPTURE_STOP, API_SLOW),
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API_ENTRY(CPU, CX18_CPU_CAPTURE_PAUSE, 0),
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API_ENTRY(CPU, CX18_CPU_CAPTURE_RESUME, 0),
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API_ENTRY(CPU, CX18_CPU_SET_CHANNEL_TYPE, 0),
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API_ENTRY(CPU, CX18_CPU_SET_STREAM_OUTPUT_TYPE, 0),
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API_ENTRY(CPU, CX18_CPU_SET_VIDEO_IN, 0),
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API_ENTRY(CPU, CX18_CPU_SET_VIDEO_RATE, 0),
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API_ENTRY(CPU, CX18_CPU_SET_VIDEO_RESOLUTION, 0),
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API_ENTRY(CPU, CX18_CPU_SET_FILTER_PARAM, 0),
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API_ENTRY(CPU, CX18_CPU_SET_SPATIAL_FILTER_TYPE, 0),
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API_ENTRY(CPU, CX18_CPU_SET_MEDIAN_CORING, 0),
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API_ENTRY(CPU, CX18_CPU_SET_INDEXTABLE, 0),
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API_ENTRY(CPU, CX18_CPU_SET_AUDIO_PARAMETERS, 0),
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API_ENTRY(CPU, CX18_CPU_SET_VIDEO_MUTE, 0),
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API_ENTRY(CPU, CX18_CPU_SET_AUDIO_MUTE, 0),
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API_ENTRY(CPU, CX18_CPU_SET_MISC_PARAMETERS, 0),
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API_ENTRY(CPU, CX18_CPU_SET_RAW_VBI_PARAM, API_SLOW),
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API_ENTRY(CPU, CX18_CPU_SET_CAPTURE_LINE_NO, 0),
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API_ENTRY(CPU, CX18_CPU_SET_COPYRIGHT, 0),
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API_ENTRY(CPU, CX18_CPU_SET_AUDIO_PID, 0),
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API_ENTRY(CPU, CX18_CPU_SET_VIDEO_PID, 0),
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API_ENTRY(CPU, CX18_CPU_SET_VER_CROP_LINE, 0),
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API_ENTRY(CPU, CX18_CPU_SET_GOP_STRUCTURE, 0),
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API_ENTRY(CPU, CX18_CPU_SET_SCENE_CHANGE_DETECTION, 0),
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API_ENTRY(CPU, CX18_CPU_SET_ASPECT_RATIO, 0),
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API_ENTRY(CPU, CX18_CPU_SET_SKIP_INPUT_FRAME, 0),
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API_ENTRY(CPU, CX18_CPU_SET_SLICED_VBI_PARAM, 0),
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API_ENTRY(CPU, CX18_CPU_SET_USERDATA_PLACE_HOLDER, 0),
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API_ENTRY(CPU, CX18_CPU_GET_ENC_PTS, 0),
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API_ENTRY(CPU, CX18_CPU_DE_SET_MDL_ACK, 0),
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API_ENTRY(CPU, CX18_CPU_DE_SET_MDL, API_FAST),
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API_ENTRY(0, 0, 0),
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};
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static const struct cx18_api_info *find_api_info(u32 cmd)
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{
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int i;
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for (i = 0; api_info[i].cmd; i++)
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if (api_info[i].cmd == cmd)
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return &api_info[i];
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return NULL;
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}
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static struct cx18_mailbox *cx18_mb_is_complete(struct cx18 *cx, int rpu,
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u32 *state, u32 *irq, u32 *req)
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{
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struct cx18_mailbox *mb = NULL;
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int wait_count = 0;
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u32 ack;
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switch (rpu) {
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case APU:
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mb = &cx->scb->epu2apu_mb;
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*state = readl(&cx->scb->apu_state);
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*irq = readl(&cx->scb->epu2apu_irq);
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break;
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case CPU:
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mb = &cx->scb->epu2cpu_mb;
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*state = readl(&cx->scb->cpu_state);
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*irq = readl(&cx->scb->epu2cpu_irq);
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break;
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case HPU:
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mb = &cx->scb->epu2hpu_mb;
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*state = readl(&cx->scb->hpu_state);
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*irq = readl(&cx->scb->epu2hpu_irq);
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break;
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}
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if (mb == NULL)
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return mb;
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do {
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*req = readl(&mb->request);
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ack = readl(&mb->ack);
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wait_count++;
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} while (*req != ack && wait_count < 600);
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if (*req == ack) {
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(*req)++;
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if (*req == 0 || *req == 0xffffffff)
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*req = 1;
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return mb;
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}
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return NULL;
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}
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long cx18_mb_ack(struct cx18 *cx, const struct cx18_mailbox *mb)
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{
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const struct cx18_api_info *info = find_api_info(mb->cmd);
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struct cx18_mailbox *ack_mb;
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u32 ack_irq;
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u8 rpu = CPU;
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if (info == NULL && mb->cmd) {
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CX18_WARN("Cannot ack unknown command %x\n", mb->cmd);
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return -EINVAL;
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}
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if (info)
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rpu = info->rpu;
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switch (rpu) {
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case HPU:
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ack_irq = IRQ_EPU_TO_HPU_ACK;
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ack_mb = &cx->scb->hpu2epu_mb;
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break;
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case APU:
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ack_irq = IRQ_EPU_TO_APU_ACK;
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ack_mb = &cx->scb->apu2epu_mb;
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break;
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case CPU:
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ack_irq = IRQ_EPU_TO_CPU_ACK;
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ack_mb = &cx->scb->cpu2epu_mb;
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break;
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default:
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CX18_WARN("Unknown RPU for command %x\n", mb->cmd);
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return -EINVAL;
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}
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setup_page(SCB_OFFSET);
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write_sync(mb->request, &ack_mb->ack);
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write_reg(ack_irq, SW2_INT_SET);
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return 0;
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}
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static int cx18_api_call(struct cx18 *cx, u32 cmd, int args, u32 data[])
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{
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const struct cx18_api_info *info = find_api_info(cmd);
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u32 state = 0, irq = 0, req, oldreq, err;
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struct cx18_mailbox *mb;
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wait_queue_head_t *waitq;
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int timeout = 100;
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int cnt = 0;
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int sig = 0;
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int i;
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if (info == NULL) {
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CX18_WARN("unknown cmd %x\n", cmd);
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return -EINVAL;
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}
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if (cmd == CX18_CPU_DE_SET_MDL)
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CX18_DEBUG_HI_API("%s\n", info->name);
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else
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CX18_DEBUG_API("%s\n", info->name);
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setup_page(SCB_OFFSET);
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mb = cx18_mb_is_complete(cx, info->rpu, &state, &irq, &req);
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if (mb == NULL) {
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CX18_ERR("mb %s busy\n", info->name);
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return -EBUSY;
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}
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oldreq = req - 1;
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writel(cmd, &mb->cmd);
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for (i = 0; i < args; i++)
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writel(data[i], &mb->args[i]);
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writel(0, &mb->error);
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writel(req, &mb->request);
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switch (info->rpu) {
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case APU: waitq = &cx->mb_apu_waitq; break;
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case CPU: waitq = &cx->mb_cpu_waitq; break;
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case EPU: waitq = &cx->mb_epu_waitq; break;
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case HPU: waitq = &cx->mb_hpu_waitq; break;
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default: return -EINVAL;
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}
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if (info->flags & API_FAST)
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timeout /= 2;
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write_reg(irq, SW1_INT_SET);
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while (!sig && readl(&mb->ack) != readl(&mb->request) && cnt < 660) {
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if (cnt > 200 && !in_atomic())
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sig = cx18_msleep_timeout(10, 1);
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cnt++;
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}
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if (sig)
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return -EINTR;
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if (cnt == 660) {
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writel(oldreq, &mb->request);
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CX18_ERR("mb %s failed\n", info->name);
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return -EINVAL;
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}
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for (i = 0; i < MAX_MB_ARGUMENTS; i++)
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data[i] = readl(&mb->args[i]);
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err = readl(&mb->error);
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if (!in_atomic() && (info->flags & API_SLOW))
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cx18_msleep_timeout(300, 0);
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if (err)
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CX18_DEBUG_API("mailbox error %08x for command %s\n", err,
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info->name);
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return err ? -EIO : 0;
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}
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int cx18_api(struct cx18 *cx, u32 cmd, int args, u32 data[])
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{
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int res = cx18_api_call(cx, cmd, args, data);
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/* Allow a single retry, probably already too late though.
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If there is no free mailbox then that is usually an indication
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of a more serious problem. */
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return (res == -EBUSY) ? cx18_api_call(cx, cmd, args, data) : res;
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}
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static int cx18_set_filter_param(struct cx18_stream *s)
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{
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struct cx18 *cx = s->cx;
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u32 mode;
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int ret;
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mode = (cx->filter_mode & 1) ? 2 : (cx->spatial_strength ? 1 : 0);
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ret = cx18_vapi(cx, CX18_CPU_SET_FILTER_PARAM, 4,
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s->handle, 1, mode, cx->spatial_strength);
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mode = (cx->filter_mode & 2) ? 2 : (cx->temporal_strength ? 1 : 0);
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ret = ret ? ret : cx18_vapi(cx, CX18_CPU_SET_FILTER_PARAM, 4,
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s->handle, 0, mode, cx->temporal_strength);
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ret = ret ? ret : cx18_vapi(cx, CX18_CPU_SET_FILTER_PARAM, 4,
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s->handle, 2, cx->filter_mode >> 2, 0);
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return ret;
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}
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int cx18_api_func(void *priv, u32 cmd, int in, int out,
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u32 data[CX2341X_MBOX_MAX_DATA])
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{
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struct cx18 *cx = priv;
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struct cx18_stream *s = &cx->streams[CX18_ENC_STREAM_TYPE_MPG];
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switch (cmd) {
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case CX2341X_ENC_SET_OUTPUT_PORT:
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return 0;
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case CX2341X_ENC_SET_FRAME_RATE:
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return cx18_vapi(cx, CX18_CPU_SET_VIDEO_IN, 6,
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s->handle, 0, 0, 0, 0, data[0]);
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case CX2341X_ENC_SET_FRAME_SIZE:
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return cx18_vapi(cx, CX18_CPU_SET_VIDEO_RESOLUTION, 3,
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s->handle, data[1], data[0]);
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case CX2341X_ENC_SET_STREAM_TYPE:
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return cx18_vapi(cx, CX18_CPU_SET_STREAM_OUTPUT_TYPE, 2,
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s->handle, data[0]);
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case CX2341X_ENC_SET_ASPECT_RATIO:
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return cx18_vapi(cx, CX18_CPU_SET_ASPECT_RATIO, 2,
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s->handle, data[0]);
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case CX2341X_ENC_SET_GOP_PROPERTIES:
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return cx18_vapi(cx, CX18_CPU_SET_GOP_STRUCTURE, 3,
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s->handle, data[0], data[1]);
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case CX2341X_ENC_SET_GOP_CLOSURE:
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return 0;
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case CX2341X_ENC_SET_AUDIO_PROPERTIES:
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return cx18_vapi(cx, CX18_CPU_SET_AUDIO_PARAMETERS, 2,
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s->handle, data[0]);
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case CX2341X_ENC_MUTE_AUDIO:
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return cx18_vapi(cx, CX18_CPU_SET_AUDIO_MUTE, 2,
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s->handle, data[0]);
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case CX2341X_ENC_SET_BIT_RATE:
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return cx18_vapi(cx, CX18_CPU_SET_VIDEO_RATE, 5,
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s->handle, data[0], data[1], data[2], data[3]);
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case CX2341X_ENC_MUTE_VIDEO:
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return cx18_vapi(cx, CX18_CPU_SET_VIDEO_MUTE, 2,
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s->handle, data[0]);
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case CX2341X_ENC_SET_FRAME_DROP_RATE:
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return cx18_vapi(cx, CX18_CPU_SET_SKIP_INPUT_FRAME, 2,
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s->handle, data[0]);
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case CX2341X_ENC_MISC:
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return cx18_vapi(cx, CX18_CPU_SET_MISC_PARAMETERS, 4,
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s->handle, data[0], data[1], data[2]);
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case CX2341X_ENC_SET_DNR_FILTER_MODE:
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cx->filter_mode = (data[0] & 3) | (data[1] << 2);
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return cx18_set_filter_param(s);
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case CX2341X_ENC_SET_DNR_FILTER_PROPS:
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cx->spatial_strength = data[0];
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cx->temporal_strength = data[1];
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return cx18_set_filter_param(s);
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case CX2341X_ENC_SET_SPATIAL_FILTER_TYPE:
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return cx18_vapi(cx, CX18_CPU_SET_SPATIAL_FILTER_TYPE, 3,
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|
|
s->handle, data[0], data[1]);
|
||
|
|
case CX2341X_ENC_SET_CORING_LEVELS:
|
||
|
|
return cx18_vapi(cx, CX18_CPU_SET_MEDIAN_CORING, 5,
|
||
|
|
s->handle, data[0], data[1], data[2], data[3]);
|
||
|
|
}
|
||
|
|
CX18_WARN("Unknown cmd %x\n", cmd);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int cx18_vapi_result(struct cx18 *cx, u32 data[MAX_MB_ARGUMENTS],
|
||
|
|
u32 cmd, int args, ...)
|
||
|
|
{
|
||
|
|
va_list ap;
|
||
|
|
int i;
|
||
|
|
|
||
|
|
va_start(ap, args);
|
||
|
|
for (i = 0; i < args; i++)
|
||
|
|
data[i] = va_arg(ap, u32);
|
||
|
|
va_end(ap);
|
||
|
|
return cx18_api(cx, cmd, args, data);
|
||
|
|
}
|
||
|
|
|
||
|
|
int cx18_vapi(struct cx18 *cx, u32 cmd, int args, ...)
|
||
|
|
{
|
||
|
|
u32 data[MAX_MB_ARGUMENTS];
|
||
|
|
va_list ap;
|
||
|
|
int i;
|
||
|
|
|
||
|
|
if (cx == NULL) {
|
||
|
|
CX18_ERR("cx == NULL (cmd=%x)\n", cmd);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
if (args > MAX_MB_ARGUMENTS) {
|
||
|
|
CX18_ERR("args too big (cmd=%x)\n", cmd);
|
||
|
|
args = MAX_MB_ARGUMENTS;
|
||
|
|
}
|
||
|
|
va_start(ap, args);
|
||
|
|
for (i = 0; i < args; i++)
|
||
|
|
data[i] = va_arg(ap, u32);
|
||
|
|
va_end(ap);
|
||
|
|
return cx18_api(cx, cmd, args, data);
|
||
|
|
}
|