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bcwc_pcie: Skeleton for power up/down sequence

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Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
This commit is contained in:
Patrik Jakobsson
2014-03-25 00:04:35 +01:00
parent 64f1d692ff
commit 90577c49cc
4 changed files with 115 additions and 1 deletions
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2
Makefile
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@@ -1,4 +1,4 @@
bcwc_pcie-objs := bcwc_drv.o
bcwc_pcie-objs := bcwc_hw.o bcwc_drv.o
obj-m := bcwc_pcie.o
KVERSION := $(shell uname -r)

3
bcwc_drv.c
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@@ -16,6 +16,7 @@
#include <linux/interrupt.h>
#include <linux/workqueue.h>
#include "bcwc_drv.h"
#include "bcwc_hw.h"
static int bcwc_pci_reserve_mem(struct bcwc_private *dev_priv)
{
@@ -151,6 +152,8 @@ static int bcwc_pci_probe(struct pci_dev *pdev,
pci_set_master(pdev);
pci_set_drvdata(pdev, dev_priv);
bcwc_hw_init(dev_priv);
return 0;
fail_msi:
pci_disable_msi(pdev);

87
bcwc_hw.c Normal file
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@@ -0,0 +1,87 @@
/*
* Broadcom PCIe 1570 webcam driver
*
* Copyright (C) 2014 Patrik Jakobsson (patrik.r.jakobsson@gmail.com)
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
*/
#include "bcwc_drv.h"
#include "bcwc_hw.h"
#if 0
static int bcwc_hw_set_core_clk(struct bcwc_private *dev_priv)
{
return 0;
}
static int bcwc_hw_aspm_enable(struct bcwc_private *dev_priv)
{
return 0;
}
static int bcwc_hw_aspm_disable(struct bcwc_private *dev_priv)
{
return 0;
}
#endif
static int bcwc_hw_irq_enable(struct bcwc_private *dev_priv)
{
return 0;
}
static int bcwc_hw_irq_disable(struct bcwc_private *dev_priv)
{
return 0;
}
static int bcwc_hw_sensor_enable(struct bcwc_private *dev_priv)
{
return 0;
}
static int bcwc_hw_sensor_disable(struct bcwc_private *dev_priv)
{
return 0;
}
static int bcwc_hw_s2chip_enable(struct bcwc_private *dev_priv)
{
return 0;
}
static int bcwc_hw_s2chip_disable(struct bcwc_private *dev_priv)
{
return 0;
}
/* What I've figured out about the power on sequence so far */
static int bcwc_hw_power_on(struct bcwc_private *dev_priv)
{
bcwc_hw_s2chip_enable(dev_priv);
bcwc_hw_sensor_enable(dev_priv);
bcwc_hw_irq_enable(dev_priv);
return 0;
}
/* What I've figured out about the power off sequence so far */
static int bcwc_hw_power_off(struct bcwc_private *dev_priv)
{
bcwc_hw_irq_disable(dev_priv);
bcwc_hw_sensor_disable(dev_priv);
bcwc_hw_s2chip_disable(dev_priv);
return 0;
}
int bcwc_hw_init(struct bcwc_private *dev_priv)
{
u32 reg;
return 0;
}

24
bcwc_hw.h Normal file
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@@ -0,0 +1,24 @@
/*
* Broadcom PCIe 1570 webcam driver
*
* Copyright (C) 2014 Patrik Jakobsson (patrik.r.jakobsson@gmail.com)
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
*/
#ifndef _BCWC_HW_H
#define _BCWC_HW_H
#define BCWC_LINK_REG_READ(offset) ioread32(dev_priv->link_io + (offset))
#define BCWC_LINK_REG_WRITE(val, offset) iowrite32((val), \
dev_priv->link_io + (offset))
#define BCWC_DEV_REG_READ(offset) ioread32(dev_priv->dev_io + (offset))
#define BCWC_DEV_REG_WRITE(val, offset) iowrite32((val), \
dev_priv->dev_io + (offset))
extern int bcwc_hw_init(struct bcwc_private *dev_priv);
#endif