cregit-Linux how code gets into the kernel

Release 4.11 drivers/staging/gs_fpgaboot/io.c

/*
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/device.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/fs.h>
#include <linux/platform_device.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/firmware.h>
#include <linux/io.h>

#include "io.h"

static inline void byte0_out(unsigned char data);
static inline void byte1_out(unsigned char data);
static inline void xl_cclk_b(int32_t i);

/* Assert and Deassert CCLK */

void xl_shift_cclk(int count) { int i; for (i = 0; i < count; i++) { xl_cclk_b(1); xl_cclk_b(0); } }

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Insop Song36100.00%1100.00%
Total36100.00%1100.00%


int xl_supported_prog_bus_width(enum wbus bus_bytes) { switch (bus_bytes) { case bus_1byte: break; case bus_2byte: break; default: pr_err("unsupported program bus width %d\n", bus_bytes); return 0; } return 1; }

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Insop Song37100.00%1100.00%
Total37100.00%1100.00%

/* Serialize byte and clock each bit on target's DIN and CCLK pins */
void xl_shift_bytes_out(enum wbus bus_byte, unsigned char *pdata) { /* * supports 1 and 2 bytes programming mode */ if (likely(bus_byte == bus_2byte)) byte0_out(pdata[0]); byte1_out(pdata[1]); xl_shift_cclk(1); }

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Insop Song45100.00%1100.00%
Total45100.00%1100.00%

/* * generic bit swap for xilinx SYSTEMMAP FPGA programming */
void xl_program_b(int32_t i) { }

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PersonTokensPropCommitsCommitProp
Insop Song457.14%150.00%
Paul Bolle342.86%150.00%
Total7100.00%2100.00%


void xl_rdwr_b(int32_t i) { }

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PersonTokensPropCommitsCommitProp
Insop Song457.14%150.00%
Paul Bolle342.86%150.00%
Total7100.00%2100.00%


void xl_csi_b(int32_t i) { }

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Insop Song457.14%150.00%
Paul Bolle342.86%150.00%
Total7100.00%2100.00%


int xl_get_init_b(void) { return -1; }

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Insop Song654.55%150.00%
Paul Bolle545.45%150.00%
Total11100.00%2100.00%


int xl_get_done_b(void) { return -1; }

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PersonTokensPropCommitsCommitProp
Insop Song763.64%150.00%
Paul Bolle436.36%150.00%
Total11100.00%2100.00%


static inline void byte0_out(unsigned char data) { }

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PersonTokensPropCommitsCommitProp
Insop Song550.00%150.00%
Paul Bolle550.00%150.00%
Total10100.00%2100.00%


static inline void byte1_out(unsigned char data) { }

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PersonTokensPropCommitsCommitProp
Paul Bolle770.00%150.00%
Insop Song330.00%150.00%
Total10100.00%2100.00%


static inline void xl_cclk_b(int32_t i) { }

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PersonTokensPropCommitsCommitProp
Insop Song555.56%150.00%
Paul Bolle444.44%150.00%
Total9100.00%2100.00%

/* * configurable per device type for different I/O config */
int xl_init_io(void) { return -1; }

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Insop Song872.73%150.00%
Paul Bolle327.27%150.00%
Total11100.00%2100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Insop Song23986.28%150.00%
Paul Bolle3813.72%150.00%
Total277100.00%2100.00%
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