cregit-Linux how code gets into the kernel

Release 4.11 drivers/media/pci/cx18/cx18-io.c

/*
 *  cx18 driver PCI memory mapped IO access routines
 *
 *  Copyright (C) 2007  Hans Verkuil <hverkuil@xs4all.nl>
 *  Copyright (C) 2008  Andy Walls <awalls@md.metrocast.net>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 */

#include "cx18-driver.h"
#include "cx18-io.h"
#include "cx18-irq.h"


void cx18_memset_io(struct cx18 *cx, void __iomem *addr, int val, size_t count) { u8 __iomem *dst = addr; u16 val2 = val | (val << 8); u32 val4 = val2 | (val2 << 16); /* Align writes on the CX23418's addresses */ if ((count > 0) && ((unsigned long)dst & 1)) { cx18_writeb(cx, (u8) val, dst); count--; dst++; } if ((count > 1) && ((unsigned long)dst & 2)) { cx18_writew(cx, val2, dst); count -= 2; dst += 2; } while (count > 3) { cx18_writel(cx, val4, dst); count -= 4; dst += 4; } if (count > 1) { cx18_writew(cx, val2, dst); count -= 2; dst += 2; } if (count > 0) cx18_writeb(cx, (u8) val, dst); }

Contributors

PersonTokensPropCommitsCommitProp
Andy Walls19399.48%375.00%
Hans Verkuil10.52%125.00%
Total194100.00%4100.00%


void cx18_sw1_irq_enable(struct cx18 *cx, u32 val) { cx18_write_reg_expect(cx, val, SW1_INT_STATUS, ~val, val); cx->sw1_irq_mask = cx18_read_reg(cx, SW1_INT_ENABLE_PCI) | val; cx18_write_reg(cx, cx->sw1_irq_mask, SW1_INT_ENABLE_PCI); }

Contributors

PersonTokensPropCommitsCommitProp
Andy Walls51100.00%3100.00%
Total51100.00%3100.00%


void cx18_sw1_irq_disable(struct cx18 *cx, u32 val) { cx->sw1_irq_mask = cx18_read_reg(cx, SW1_INT_ENABLE_PCI) & ~val; cx18_write_reg(cx, cx->sw1_irq_mask, SW1_INT_ENABLE_PCI); }

Contributors

PersonTokensPropCommitsCommitProp
Andy Walls38100.00%2100.00%
Total38100.00%2100.00%


void cx18_sw2_irq_enable(struct cx18 *cx, u32 val) { cx18_write_reg_expect(cx, val, SW2_INT_STATUS, ~val, val); cx->sw2_irq_mask = cx18_read_reg(cx, SW2_INT_ENABLE_PCI) | val; cx18_write_reg(cx, cx->sw2_irq_mask, SW2_INT_ENABLE_PCI); }

Contributors

PersonTokensPropCommitsCommitProp
Andy Walls51100.00%3100.00%
Total51100.00%3100.00%


void cx18_sw2_irq_disable(struct cx18 *cx, u32 val) { cx->sw2_irq_mask = cx18_read_reg(cx, SW2_INT_ENABLE_PCI) & ~val; cx18_write_reg(cx, cx->sw2_irq_mask, SW2_INT_ENABLE_PCI); }

Contributors

PersonTokensPropCommitsCommitProp
Andy Walls38100.00%2100.00%
Total38100.00%2100.00%


void cx18_sw2_irq_disable_cpu(struct cx18 *cx, u32 val) { u32 r; r = cx18_read_reg(cx, SW2_INT_ENABLE_CPU); cx18_write_reg(cx, r & ~val, SW2_INT_ENABLE_CPU); }

Contributors

PersonTokensPropCommitsCommitProp
Andy Walls37100.00%1100.00%
Total37100.00%1100.00%


void cx18_setup_page(struct cx18 *cx, u32 addr) { u32 val; val = cx18_read_reg(cx, 0xD000F8); val = (val & ~0x1f00) | ((addr >> 17) & 0x1f00); cx18_write_reg(cx, val, 0xD000F8); }

Contributors

PersonTokensPropCommitsCommitProp
Andy Walls53100.00%1100.00%
Total53100.00%1100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Andy Walls47099.58%675.00%
Sakari Ailus10.21%112.50%
Hans Verkuil10.21%112.50%
Total472100.00%8100.00%
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