mirror of https://gitee.com/openkylin/linux.git
815 lines
20 KiB
C
815 lines
20 KiB
C
/*
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*
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* Support for the mpeg transport stream transfers
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* PCI function #2 of the cx2388x.
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*
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* (c) 2004 Jelle Foks <jelle@foks.us>
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* (c) 2004 Chris Pascoe <c.pascoe@itee.uq.edu.au>
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* (c) 2004 Gerd Knorr <kraxel@bytesex.org>
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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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#include "cx88.h"
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/init.h>
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#include <linux/device.h>
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#include <linux/dma-mapping.h>
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#include <linux/interrupt.h>
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#include <linux/delay.h>
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/* ------------------------------------------------------------------ */
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MODULE_DESCRIPTION("mpeg driver for cx2388x based TV cards");
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MODULE_AUTHOR("Jelle Foks <jelle@foks.us>");
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MODULE_AUTHOR("Chris Pascoe <c.pascoe@itee.uq.edu.au>");
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MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
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MODULE_LICENSE("GPL");
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MODULE_VERSION(CX88_VERSION);
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static unsigned int debug;
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module_param(debug, int, 0644);
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MODULE_PARM_DESC(debug, "enable debug messages [mpeg]");
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#define dprintk(level, fmt, arg...) do { \
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if (debug + 1 > level) \
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printk(KERN_DEBUG pr_fmt("%s: mpeg:" fmt), \
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__func__, ##arg); \
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} while (0)
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#if defined(CONFIG_MODULES) && defined(MODULE)
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static void request_module_async(struct work_struct *work)
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{
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struct cx8802_dev *dev = container_of(work, struct cx8802_dev,
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request_module_wk);
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if (dev->core->board.mpeg & CX88_MPEG_DVB)
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request_module("cx88-dvb");
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if (dev->core->board.mpeg & CX88_MPEG_BLACKBIRD)
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request_module("cx88-blackbird");
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}
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static void request_modules(struct cx8802_dev *dev)
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{
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INIT_WORK(&dev->request_module_wk, request_module_async);
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schedule_work(&dev->request_module_wk);
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}
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static void flush_request_modules(struct cx8802_dev *dev)
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{
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flush_work(&dev->request_module_wk);
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}
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#else
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#define request_modules(dev)
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#define flush_request_modules(dev)
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#endif /* CONFIG_MODULES */
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static LIST_HEAD(cx8802_devlist);
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static DEFINE_MUTEX(cx8802_mutex);
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/* ------------------------------------------------------------------ */
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int cx8802_start_dma(struct cx8802_dev *dev,
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struct cx88_dmaqueue *q,
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struct cx88_buffer *buf)
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{
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struct cx88_core *core = dev->core;
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dprintk(1, "w: %d, h: %d, f: %d\n",
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core->width, core->height, core->field);
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/* setup fifo + format */
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cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH28],
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dev->ts_packet_size, buf->risc.dma);
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/* write TS length to chip */
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cx_write(MO_TS_LNGTH, dev->ts_packet_size);
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/*
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* FIXME: this needs a review.
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* also: move to cx88-blackbird + cx88-dvb source files?
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*/
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dprintk(1, "core->active_type_id = 0x%08x\n", core->active_type_id);
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if ((core->active_type_id == CX88_MPEG_DVB) &&
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(core->board.mpeg & CX88_MPEG_DVB)) {
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dprintk(1, "cx8802_start_dma doing .dvb\n");
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/* negedge driven & software reset */
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cx_write(TS_GEN_CNTRL, 0x0040 | dev->ts_gen_cntrl);
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udelay(100);
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cx_write(MO_PINMUX_IO, 0x00);
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cx_write(TS_HW_SOP_CNTRL, 0x47 << 16 | 188 << 4 | 0x01);
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switch (core->boardnr) {
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case CX88_BOARD_DVICO_FUSIONHDTV_3_GOLD_Q:
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case CX88_BOARD_DVICO_FUSIONHDTV_3_GOLD_T:
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case CX88_BOARD_DVICO_FUSIONHDTV_5_GOLD:
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case CX88_BOARD_PCHDTV_HD5500:
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cx_write(TS_SOP_STAT, 1 << 13);
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break;
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case CX88_BOARD_SAMSUNG_SMT_7020:
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cx_write(TS_SOP_STAT, 0x00);
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break;
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case CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1:
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case CX88_BOARD_HAUPPAUGE_NOVASE2_S1:
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/* Enable MPEG parallel IO and video signal pins */
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cx_write(MO_PINMUX_IO, 0x88);
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udelay(100);
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break;
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case CX88_BOARD_HAUPPAUGE_HVR1300:
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/* Enable MPEG parallel IO and video signal pins */
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cx_write(MO_PINMUX_IO, 0x88);
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cx_write(TS_SOP_STAT, 0);
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cx_write(TS_VALERR_CNTRL, 0);
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break;
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case CX88_BOARD_PINNACLE_PCTV_HD_800i:
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/* Enable MPEG parallel IO and video signal pins */
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cx_write(MO_PINMUX_IO, 0x88);
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cx_write(TS_HW_SOP_CNTRL, (0x47 << 16) | (188 << 4));
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dev->ts_gen_cntrl = 5;
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cx_write(TS_SOP_STAT, 0);
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cx_write(TS_VALERR_CNTRL, 0);
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udelay(100);
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break;
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default:
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cx_write(TS_SOP_STAT, 0x00);
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break;
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}
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cx_write(TS_GEN_CNTRL, dev->ts_gen_cntrl);
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udelay(100);
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} else if ((core->active_type_id == CX88_MPEG_BLACKBIRD) &&
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(core->board.mpeg & CX88_MPEG_BLACKBIRD)) {
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dprintk(1, "cx8802_start_dma doing .blackbird\n");
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cx_write(MO_PINMUX_IO, 0x88); /* enable MPEG parallel IO */
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/* punctured clock TS & posedge driven & software reset */
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cx_write(TS_GEN_CNTRL, 0x46);
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udelay(100);
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cx_write(TS_HW_SOP_CNTRL, 0x408); /* mpeg start byte */
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cx_write(TS_VALERR_CNTRL, 0x2000);
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/* punctured clock TS & posedge driven */
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cx_write(TS_GEN_CNTRL, 0x06);
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udelay(100);
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} else {
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pr_err("%s() Failed. Unsupported value in .mpeg (0x%08x)\n",
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__func__, core->board.mpeg);
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return -EINVAL;
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}
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/* reset counter */
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cx_write(MO_TS_GPCNTRL, GP_COUNT_CONTROL_RESET);
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q->count = 0;
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/* enable irqs */
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dprintk(1, "setting the interrupt mask\n");
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cx_set(MO_PCI_INTMSK, core->pci_irqmask | PCI_INT_TSINT);
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cx_set(MO_TS_INTMSK, 0x1f0011);
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/* start dma */
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cx_set(MO_DEV_CNTRL2, (1 << 5));
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cx_set(MO_TS_DMACNTRL, 0x11);
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return 0;
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}
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EXPORT_SYMBOL(cx8802_start_dma);
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static int cx8802_stop_dma(struct cx8802_dev *dev)
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{
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struct cx88_core *core = dev->core;
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dprintk(1, "\n");
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/* stop dma */
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cx_clear(MO_TS_DMACNTRL, 0x11);
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/* disable irqs */
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cx_clear(MO_PCI_INTMSK, PCI_INT_TSINT);
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cx_clear(MO_TS_INTMSK, 0x1f0011);
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/* Reset the controller */
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cx_write(TS_GEN_CNTRL, 0xcd);
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return 0;
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}
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static int cx8802_restart_queue(struct cx8802_dev *dev,
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struct cx88_dmaqueue *q)
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{
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struct cx88_buffer *buf;
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dprintk(1, "\n");
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if (list_empty(&q->active))
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return 0;
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buf = list_entry(q->active.next, struct cx88_buffer, list);
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dprintk(2, "restart_queue [%p/%d]: restart dma\n",
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buf, buf->vb.vb2_buf.index);
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cx8802_start_dma(dev, q, buf);
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return 0;
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}
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/* ------------------------------------------------------------------ */
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int cx8802_buf_prepare(struct vb2_queue *q, struct cx8802_dev *dev,
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struct cx88_buffer *buf)
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{
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int size = dev->ts_packet_size * dev->ts_packet_count;
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struct sg_table *sgt = vb2_dma_sg_plane_desc(&buf->vb.vb2_buf, 0);
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struct cx88_riscmem *risc = &buf->risc;
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int rc;
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if (vb2_plane_size(&buf->vb.vb2_buf, 0) < size)
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return -EINVAL;
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vb2_set_plane_payload(&buf->vb.vb2_buf, 0, size);
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rc = cx88_risc_databuffer(dev->pci, risc, sgt->sgl,
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dev->ts_packet_size, dev->ts_packet_count, 0);
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if (rc) {
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if (risc->cpu)
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pci_free_consistent(dev->pci, risc->size,
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risc->cpu, risc->dma);
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memset(risc, 0, sizeof(*risc));
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return rc;
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}
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return 0;
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}
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EXPORT_SYMBOL(cx8802_buf_prepare);
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void cx8802_buf_queue(struct cx8802_dev *dev, struct cx88_buffer *buf)
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{
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struct cx88_buffer *prev;
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struct cx88_dmaqueue *cx88q = &dev->mpegq;
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dprintk(1, "\n");
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/* add jump to start */
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buf->risc.cpu[1] = cpu_to_le32(buf->risc.dma + 8);
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buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_CNT_INC);
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buf->risc.jmp[1] = cpu_to_le32(buf->risc.dma + 8);
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if (list_empty(&cx88q->active)) {
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dprintk(1, "queue is empty - first active\n");
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list_add_tail(&buf->list, &cx88q->active);
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dprintk(1, "[%p/%d] %s - first active\n",
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buf, buf->vb.vb2_buf.index, __func__);
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} else {
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buf->risc.cpu[0] |= cpu_to_le32(RISC_IRQ1);
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dprintk(1, "queue is not empty - append to active\n");
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prev = list_entry(cx88q->active.prev, struct cx88_buffer, list);
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list_add_tail(&buf->list, &cx88q->active);
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prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
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dprintk(1, "[%p/%d] %s - append to active\n",
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buf, buf->vb.vb2_buf.index, __func__);
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}
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}
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EXPORT_SYMBOL(cx8802_buf_queue);
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/* ----------------------------------------------------------- */
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static void do_cancel_buffers(struct cx8802_dev *dev)
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{
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struct cx88_dmaqueue *q = &dev->mpegq;
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struct cx88_buffer *buf;
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unsigned long flags;
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spin_lock_irqsave(&dev->slock, flags);
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while (!list_empty(&q->active)) {
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buf = list_entry(q->active.next, struct cx88_buffer, list);
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list_del(&buf->list);
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vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
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}
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spin_unlock_irqrestore(&dev->slock, flags);
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}
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void cx8802_cancel_buffers(struct cx8802_dev *dev)
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{
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dprintk(1, "\n");
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cx8802_stop_dma(dev);
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do_cancel_buffers(dev);
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}
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EXPORT_SYMBOL(cx8802_cancel_buffers);
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static const char *cx88_mpeg_irqs[32] = {
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"ts_risci1", NULL, NULL, NULL,
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"ts_risci2", NULL, NULL, NULL,
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"ts_oflow", NULL, NULL, NULL,
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"ts_sync", NULL, NULL, NULL,
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"opc_err", "par_err", "rip_err", "pci_abort",
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"ts_err?",
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};
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static void cx8802_mpeg_irq(struct cx8802_dev *dev)
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{
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struct cx88_core *core = dev->core;
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u32 status, mask, count;
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dprintk(1, "\n");
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status = cx_read(MO_TS_INTSTAT);
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mask = cx_read(MO_TS_INTMSK);
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if (0 == (status & mask))
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return;
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cx_write(MO_TS_INTSTAT, status);
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if (debug || (status & mask & ~0xff))
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cx88_print_irqbits("irq mpeg ",
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cx88_mpeg_irqs, ARRAY_SIZE(cx88_mpeg_irqs),
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status, mask);
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/* risc op code error */
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if (status & (1 << 16)) {
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pr_warn("mpeg risc op code error\n");
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cx_clear(MO_TS_DMACNTRL, 0x11);
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cx88_sram_channel_dump(dev->core,
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&cx88_sram_channels[SRAM_CH28]);
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}
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/* risc1 y */
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if (status & 0x01) {
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dprintk(1, "wake up\n");
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spin_lock(&dev->slock);
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count = cx_read(MO_TS_GPCNT);
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cx88_wakeup(dev->core, &dev->mpegq, count);
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spin_unlock(&dev->slock);
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}
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/* other general errors */
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if (status & 0x1f0100) {
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dprintk(0, "general errors: 0x%08x\n", status & 0x1f0100);
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spin_lock(&dev->slock);
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cx8802_stop_dma(dev);
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spin_unlock(&dev->slock);
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}
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}
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#define MAX_IRQ_LOOP 10
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static irqreturn_t cx8802_irq(int irq, void *dev_id)
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{
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struct cx8802_dev *dev = dev_id;
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struct cx88_core *core = dev->core;
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u32 status;
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int loop, handled = 0;
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for (loop = 0; loop < MAX_IRQ_LOOP; loop++) {
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status = cx_read(MO_PCI_INTSTAT) &
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(core->pci_irqmask | PCI_INT_TSINT);
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if (status == 0)
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goto out;
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dprintk(1, "cx8802_irq\n");
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dprintk(1, " loop: %d/%d\n", loop, MAX_IRQ_LOOP);
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dprintk(1, " status: %d\n", status);
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handled = 1;
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cx_write(MO_PCI_INTSTAT, status);
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if (status & core->pci_irqmask)
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cx88_core_irq(core, status);
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if (status & PCI_INT_TSINT)
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cx8802_mpeg_irq(dev);
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}
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if (loop == MAX_IRQ_LOOP) {
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dprintk(0, "clearing mask\n");
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pr_warn("irq loop -- clearing mask\n");
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cx_write(MO_PCI_INTMSK, 0);
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}
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out:
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return IRQ_RETVAL(handled);
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}
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static int cx8802_init_common(struct cx8802_dev *dev)
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{
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struct cx88_core *core = dev->core;
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int err;
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/* pci init */
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if (pci_enable_device(dev->pci))
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return -EIO;
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pci_set_master(dev->pci);
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err = pci_set_dma_mask(dev->pci, DMA_BIT_MASK(32));
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if (err) {
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pr_err("Oops: no 32bit PCI DMA ???\n");
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return -EIO;
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}
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dev->pci_rev = dev->pci->revision;
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pci_read_config_byte(dev->pci, PCI_LATENCY_TIMER, &dev->pci_lat);
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pr_info("found at %s, rev: %d, irq: %d, latency: %d, mmio: 0x%llx\n",
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pci_name(dev->pci), dev->pci_rev, dev->pci->irq,
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dev->pci_lat,
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(unsigned long long)pci_resource_start(dev->pci, 0));
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/* initialize driver struct */
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spin_lock_init(&dev->slock);
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/* init dma queue */
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INIT_LIST_HEAD(&dev->mpegq.active);
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/* get irq */
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err = request_irq(dev->pci->irq, cx8802_irq,
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IRQF_SHARED, dev->core->name, dev);
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if (err < 0) {
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pr_err("can't get IRQ %d\n", dev->pci->irq);
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return err;
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}
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cx_set(MO_PCI_INTMSK, core->pci_irqmask);
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/* everything worked */
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pci_set_drvdata(dev->pci, dev);
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return 0;
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}
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static void cx8802_fini_common(struct cx8802_dev *dev)
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{
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dprintk(2, "\n");
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cx8802_stop_dma(dev);
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pci_disable_device(dev->pci);
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/* unregister stuff */
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free_irq(dev->pci->irq, dev);
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}
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/* ----------------------------------------------------------- */
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static int cx8802_suspend_common(struct pci_dev *pci_dev, pm_message_t state)
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{
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struct cx8802_dev *dev = pci_get_drvdata(pci_dev);
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unsigned long flags;
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/* stop mpeg dma */
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spin_lock_irqsave(&dev->slock, flags);
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if (!list_empty(&dev->mpegq.active)) {
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dprintk(2, "suspend\n");
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pr_info("suspend mpeg\n");
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cx8802_stop_dma(dev);
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}
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spin_unlock_irqrestore(&dev->slock, flags);
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/* FIXME -- shutdown device */
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cx88_shutdown(dev->core);
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pci_save_state(pci_dev);
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if (pci_set_power_state(pci_dev,
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pci_choose_state(pci_dev, state)) != 0) {
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pci_disable_device(pci_dev);
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dev->state.disabled = 1;
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}
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return 0;
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}
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static int cx8802_resume_common(struct pci_dev *pci_dev)
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|
{
|
|
struct cx8802_dev *dev = pci_get_drvdata(pci_dev);
|
|
unsigned long flags;
|
|
int err;
|
|
|
|
if (dev->state.disabled) {
|
|
err = pci_enable_device(pci_dev);
|
|
if (err) {
|
|
pr_err("can't enable device\n");
|
|
return err;
|
|
}
|
|
dev->state.disabled = 0;
|
|
}
|
|
err = pci_set_power_state(pci_dev, PCI_D0);
|
|
if (err) {
|
|
pr_err("can't enable device\n");
|
|
pci_disable_device(pci_dev);
|
|
dev->state.disabled = 1;
|
|
|
|
return err;
|
|
}
|
|
pci_restore_state(pci_dev);
|
|
|
|
/* FIXME: re-initialize hardware */
|
|
cx88_reset(dev->core);
|
|
|
|
/* restart video+vbi capture */
|
|
spin_lock_irqsave(&dev->slock, flags);
|
|
if (!list_empty(&dev->mpegq.active)) {
|
|
pr_info("resume mpeg\n");
|
|
cx8802_restart_queue(dev, &dev->mpegq);
|
|
}
|
|
spin_unlock_irqrestore(&dev->slock, flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct cx8802_driver *cx8802_get_driver(struct cx8802_dev *dev,
|
|
enum cx88_board_type btype)
|
|
{
|
|
struct cx8802_driver *d;
|
|
|
|
list_for_each_entry(d, &dev->drvlist, drvlist)
|
|
if (d->type_id == btype)
|
|
return d;
|
|
|
|
return NULL;
|
|
}
|
|
EXPORT_SYMBOL(cx8802_get_driver);
|
|
|
|
/* Driver asked for hardware access. */
|
|
static int cx8802_request_acquire(struct cx8802_driver *drv)
|
|
{
|
|
struct cx88_core *core = drv->core;
|
|
unsigned int i;
|
|
|
|
/* Fail a request for hardware if the device is busy. */
|
|
if (core->active_type_id != CX88_BOARD_NONE &&
|
|
core->active_type_id != drv->type_id)
|
|
return -EBUSY;
|
|
|
|
if (drv->type_id == CX88_MPEG_DVB) {
|
|
/* When switching to DVB, always set the input to the tuner */
|
|
core->last_analog_input = core->input;
|
|
core->input = 0;
|
|
for (i = 0;
|
|
i < (sizeof(core->board.input) /
|
|
sizeof(struct cx88_input));
|
|
i++) {
|
|
if (core->board.input[i].type == CX88_VMUX_DVB) {
|
|
core->input = i;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (drv->advise_acquire) {
|
|
core->active_ref++;
|
|
if (core->active_type_id == CX88_BOARD_NONE) {
|
|
core->active_type_id = drv->type_id;
|
|
drv->advise_acquire(drv);
|
|
}
|
|
|
|
dprintk(1, "Post acquire GPIO=%x\n", cx_read(MO_GP0_IO));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Driver asked to release hardware. */
|
|
static int cx8802_request_release(struct cx8802_driver *drv)
|
|
{
|
|
struct cx88_core *core = drv->core;
|
|
|
|
if (drv->advise_release && --core->active_ref == 0) {
|
|
if (drv->type_id == CX88_MPEG_DVB) {
|
|
/*
|
|
* If the DVB driver is releasing, reset the input
|
|
* state to the last configured analog input
|
|
*/
|
|
core->input = core->last_analog_input;
|
|
}
|
|
|
|
drv->advise_release(drv);
|
|
core->active_type_id = CX88_BOARD_NONE;
|
|
dprintk(1, "Post release GPIO=%x\n", cx_read(MO_GP0_IO));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int cx8802_check_driver(struct cx8802_driver *drv)
|
|
{
|
|
if (!drv)
|
|
return -ENODEV;
|
|
|
|
if ((drv->type_id != CX88_MPEG_DVB) &&
|
|
(drv->type_id != CX88_MPEG_BLACKBIRD))
|
|
return -EINVAL;
|
|
|
|
if ((drv->hw_access != CX8802_DRVCTL_SHARED) &&
|
|
(drv->hw_access != CX8802_DRVCTL_EXCLUSIVE))
|
|
return -EINVAL;
|
|
|
|
if ((!drv->probe) ||
|
|
(!drv->remove) ||
|
|
(!drv->advise_acquire) ||
|
|
(!drv->advise_release))
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int cx8802_register_driver(struct cx8802_driver *drv)
|
|
{
|
|
struct cx8802_dev *dev;
|
|
struct cx8802_driver *driver;
|
|
int err, i = 0;
|
|
|
|
pr_info("registering cx8802 driver, type: %s access: %s\n",
|
|
drv->type_id == CX88_MPEG_DVB ? "dvb" : "blackbird",
|
|
drv->hw_access == CX8802_DRVCTL_SHARED ?
|
|
"shared" : "exclusive");
|
|
|
|
err = cx8802_check_driver(drv);
|
|
if (err) {
|
|
pr_err("cx8802_driver is invalid\n");
|
|
return err;
|
|
}
|
|
|
|
mutex_lock(&cx8802_mutex);
|
|
|
|
list_for_each_entry(dev, &cx8802_devlist, devlist) {
|
|
pr_info("subsystem: %04x:%04x, board: %s [card=%d]\n",
|
|
dev->pci->subsystem_vendor,
|
|
dev->pci->subsystem_device, dev->core->board.name,
|
|
dev->core->boardnr);
|
|
|
|
/* Bring up a new struct for each driver instance */
|
|
driver = kzalloc(sizeof(*drv), GFP_KERNEL);
|
|
if (!driver) {
|
|
err = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
/* Snapshot of the driver registration data */
|
|
drv->core = dev->core;
|
|
drv->suspend = cx8802_suspend_common;
|
|
drv->resume = cx8802_resume_common;
|
|
drv->request_acquire = cx8802_request_acquire;
|
|
drv->request_release = cx8802_request_release;
|
|
memcpy(driver, drv, sizeof(*driver));
|
|
|
|
mutex_lock(&drv->core->lock);
|
|
err = drv->probe(driver);
|
|
if (err == 0) {
|
|
i++;
|
|
list_add_tail(&driver->drvlist, &dev->drvlist);
|
|
} else {
|
|
pr_err("cx8802 probe failed, err = %d\n", err);
|
|
}
|
|
mutex_unlock(&drv->core->lock);
|
|
}
|
|
|
|
err = i ? 0 : -ENODEV;
|
|
out:
|
|
mutex_unlock(&cx8802_mutex);
|
|
return err;
|
|
}
|
|
EXPORT_SYMBOL(cx8802_register_driver);
|
|
|
|
int cx8802_unregister_driver(struct cx8802_driver *drv)
|
|
{
|
|
struct cx8802_dev *dev;
|
|
struct cx8802_driver *d, *dtmp;
|
|
int err = 0;
|
|
|
|
pr_info("unregistering cx8802 driver, type: %s access: %s\n",
|
|
drv->type_id == CX88_MPEG_DVB ? "dvb" : "blackbird",
|
|
drv->hw_access == CX8802_DRVCTL_SHARED ?
|
|
"shared" : "exclusive");
|
|
|
|
mutex_lock(&cx8802_mutex);
|
|
|
|
list_for_each_entry(dev, &cx8802_devlist, devlist) {
|
|
pr_info("subsystem: %04x:%04x, board: %s [card=%d]\n",
|
|
dev->pci->subsystem_vendor,
|
|
dev->pci->subsystem_device, dev->core->board.name,
|
|
dev->core->boardnr);
|
|
|
|
mutex_lock(&dev->core->lock);
|
|
|
|
list_for_each_entry_safe(d, dtmp, &dev->drvlist, drvlist) {
|
|
/* only unregister the correct driver type */
|
|
if (d->type_id != drv->type_id)
|
|
continue;
|
|
|
|
err = d->remove(d);
|
|
if (err == 0) {
|
|
list_del(&d->drvlist);
|
|
kfree(d);
|
|
} else
|
|
pr_err("cx8802 driver remove failed (%d)\n",
|
|
err);
|
|
}
|
|
|
|
mutex_unlock(&dev->core->lock);
|
|
}
|
|
|
|
mutex_unlock(&cx8802_mutex);
|
|
|
|
return err;
|
|
}
|
|
EXPORT_SYMBOL(cx8802_unregister_driver);
|
|
|
|
/* ----------------------------------------------------------- */
|
|
static int cx8802_probe(struct pci_dev *pci_dev,
|
|
const struct pci_device_id *pci_id)
|
|
{
|
|
struct cx8802_dev *dev;
|
|
struct cx88_core *core;
|
|
int err;
|
|
|
|
/* general setup */
|
|
core = cx88_core_get(pci_dev);
|
|
if (!core)
|
|
return -EINVAL;
|
|
|
|
pr_info("cx2388x 8802 Driver Manager\n");
|
|
|
|
err = -ENODEV;
|
|
if (!core->board.mpeg)
|
|
goto fail_core;
|
|
|
|
err = -ENOMEM;
|
|
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
|
|
if (!dev)
|
|
goto fail_core;
|
|
dev->pci = pci_dev;
|
|
dev->core = core;
|
|
|
|
/* Maintain a reference so cx88-video can query the 8802 device. */
|
|
core->dvbdev = dev;
|
|
|
|
err = cx8802_init_common(dev);
|
|
if (err != 0)
|
|
goto fail_dev;
|
|
|
|
INIT_LIST_HEAD(&dev->drvlist);
|
|
mutex_lock(&cx8802_mutex);
|
|
list_add_tail(&dev->devlist, &cx8802_devlist);
|
|
mutex_unlock(&cx8802_mutex);
|
|
|
|
/* now autoload cx88-dvb or cx88-blackbird */
|
|
request_modules(dev);
|
|
return 0;
|
|
|
|
fail_dev:
|
|
kfree(dev);
|
|
fail_core:
|
|
core->dvbdev = NULL;
|
|
cx88_core_put(core, pci_dev);
|
|
return err;
|
|
}
|
|
|
|
static void cx8802_remove(struct pci_dev *pci_dev)
|
|
{
|
|
struct cx8802_dev *dev;
|
|
|
|
dev = pci_get_drvdata(pci_dev);
|
|
|
|
dprintk(1, "%s\n", __func__);
|
|
|
|
flush_request_modules(dev);
|
|
|
|
mutex_lock(&dev->core->lock);
|
|
|
|
if (!list_empty(&dev->drvlist)) {
|
|
struct cx8802_driver *drv, *tmp;
|
|
int err;
|
|
|
|
pr_warn("Trying to remove cx8802 driver while cx8802 sub-drivers still loaded?!\n");
|
|
|
|
list_for_each_entry_safe(drv, tmp, &dev->drvlist, drvlist) {
|
|
err = drv->remove(drv);
|
|
if (err == 0) {
|
|
list_del(&drv->drvlist);
|
|
} else
|
|
pr_err("cx8802 driver remove failed (%d)\n",
|
|
err);
|
|
kfree(drv);
|
|
}
|
|
}
|
|
|
|
mutex_unlock(&dev->core->lock);
|
|
|
|
/* Destroy any 8802 reference. */
|
|
dev->core->dvbdev = NULL;
|
|
|
|
/* common */
|
|
cx8802_fini_common(dev);
|
|
cx88_core_put(dev->core, dev->pci);
|
|
kfree(dev);
|
|
}
|
|
|
|
static const struct pci_device_id cx8802_pci_tbl[] = {
|
|
{
|
|
.vendor = 0x14f1,
|
|
.device = 0x8802,
|
|
.subvendor = PCI_ANY_ID,
|
|
.subdevice = PCI_ANY_ID,
|
|
}, {
|
|
/* --- end of list --- */
|
|
}
|
|
};
|
|
MODULE_DEVICE_TABLE(pci, cx8802_pci_tbl);
|
|
|
|
static struct pci_driver cx8802_pci_driver = {
|
|
.name = "cx88-mpeg driver manager",
|
|
.id_table = cx8802_pci_tbl,
|
|
.probe = cx8802_probe,
|
|
.remove = cx8802_remove,
|
|
};
|
|
|
|
module_pci_driver(cx8802_pci_driver);
|