OpenCloudOS-Kernel/drivers/media/pci/smipcie/smipcie-main.c

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treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 Based on 3 normalized pattern(s): 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 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 [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] 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 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 [author] [graeme] [gregory] [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema] [hk] [hemahk]@[ti] [com] 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1105 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-27 14:55:06 +08:00
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* SMI PCIe driver for DVBSky cards.
*
* Copyright (C) 2014 Max nibble <nibble.max@gmail.com>
*/
#include "smipcie.h"
#include "m88ds3103.h"
#include "ts2020.h"
#include "m88rs6000t.h"
#include "si2168.h"
#include "si2157.h"
DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
static int smi_hw_init(struct smi_dev *dev)
{
u32 port_mux, port_ctrl, int_stat;
/* set port mux.*/
port_mux = smi_read(MUX_MODE_CTRL);
port_mux &= ~(rbPaMSMask);
port_mux |= rbPaMSDtvNoGpio;
port_mux &= ~(rbPbMSMask);
port_mux |= rbPbMSDtvNoGpio;
port_mux &= ~(0x0f0000);
port_mux |= 0x50000;
smi_write(MUX_MODE_CTRL, port_mux);
/* set DTV register.*/
/* Port A */
port_ctrl = smi_read(VIDEO_CTRL_STATUS_A);
port_ctrl &= ~0x01;
smi_write(VIDEO_CTRL_STATUS_A, port_ctrl);
port_ctrl = smi_read(MPEG2_CTRL_A);
port_ctrl &= ~0x40;
port_ctrl |= 0x80;
smi_write(MPEG2_CTRL_A, port_ctrl);
/* Port B */
port_ctrl = smi_read(VIDEO_CTRL_STATUS_B);
port_ctrl &= ~0x01;
smi_write(VIDEO_CTRL_STATUS_B, port_ctrl);
port_ctrl = smi_read(MPEG2_CTRL_B);
port_ctrl &= ~0x40;
port_ctrl |= 0x80;
smi_write(MPEG2_CTRL_B, port_ctrl);
/* disable and clear interrupt.*/
smi_write(MSI_INT_ENA_CLR, ALL_INT);
int_stat = smi_read(MSI_INT_STATUS);
smi_write(MSI_INT_STATUS_CLR, int_stat);
/* reset demod.*/
smi_clear(PERIPHERAL_CTRL, 0x0303);
msleep(50);
smi_set(PERIPHERAL_CTRL, 0x0101);
return 0;
}
/* i2c bit bus.*/
static void smi_i2c_cfg(struct smi_dev *dev, u32 sw_ctl)
{
u32 dwCtrl;
dwCtrl = smi_read(sw_ctl);
dwCtrl &= ~0x18; /* disable output.*/
dwCtrl |= 0x21; /* reset and software mode.*/
dwCtrl &= ~0xff00;
dwCtrl |= 0x6400;
smi_write(sw_ctl, dwCtrl);
msleep(20);
dwCtrl = smi_read(sw_ctl);
dwCtrl &= ~0x20;
smi_write(sw_ctl, dwCtrl);
}
static void smi_i2c_setsda(struct smi_dev *dev, int state, u32 sw_ctl)
{
if (state) {
/* set as input.*/
smi_clear(sw_ctl, SW_I2C_MSK_DAT_EN);
} else {
smi_clear(sw_ctl, SW_I2C_MSK_DAT_OUT);
/* set as output.*/
smi_set(sw_ctl, SW_I2C_MSK_DAT_EN);
}
}
static void smi_i2c_setscl(void *data, int state, u32 sw_ctl)
{
struct smi_dev *dev = data;
if (state) {
/* set as input.*/
smi_clear(sw_ctl, SW_I2C_MSK_CLK_EN);
} else {
smi_clear(sw_ctl, SW_I2C_MSK_CLK_OUT);
/* set as output.*/
smi_set(sw_ctl, SW_I2C_MSK_CLK_EN);
}
}
static int smi_i2c_getsda(void *data, u32 sw_ctl)
{
struct smi_dev *dev = data;
/* set as input.*/
smi_clear(sw_ctl, SW_I2C_MSK_DAT_EN);
udelay(1);
return (smi_read(sw_ctl) & SW_I2C_MSK_DAT_IN) ? 1 : 0;
}
static int smi_i2c_getscl(void *data, u32 sw_ctl)
{
struct smi_dev *dev = data;
/* set as input.*/
smi_clear(sw_ctl, SW_I2C_MSK_CLK_EN);
udelay(1);
return (smi_read(sw_ctl) & SW_I2C_MSK_CLK_IN) ? 1 : 0;
}
/* i2c 0.*/
static void smi_i2c0_setsda(void *data, int state)
{
struct smi_dev *dev = data;
smi_i2c_setsda(dev, state, I2C_A_SW_CTL);
}
static void smi_i2c0_setscl(void *data, int state)
{
struct smi_dev *dev = data;
smi_i2c_setscl(dev, state, I2C_A_SW_CTL);
}
static int smi_i2c0_getsda(void *data)
{
struct smi_dev *dev = data;
return smi_i2c_getsda(dev, I2C_A_SW_CTL);
}
static int smi_i2c0_getscl(void *data)
{
struct smi_dev *dev = data;
return smi_i2c_getscl(dev, I2C_A_SW_CTL);
}
/* i2c 1.*/
static void smi_i2c1_setsda(void *data, int state)
{
struct smi_dev *dev = data;
smi_i2c_setsda(dev, state, I2C_B_SW_CTL);
}
static void smi_i2c1_setscl(void *data, int state)
{
struct smi_dev *dev = data;
smi_i2c_setscl(dev, state, I2C_B_SW_CTL);
}
static int smi_i2c1_getsda(void *data)
{
struct smi_dev *dev = data;
return smi_i2c_getsda(dev, I2C_B_SW_CTL);
}
static int smi_i2c1_getscl(void *data)
{
struct smi_dev *dev = data;
return smi_i2c_getscl(dev, I2C_B_SW_CTL);
}
static int smi_i2c_init(struct smi_dev *dev)
{
int ret;
/* i2c bus 0 */
smi_i2c_cfg(dev, I2C_A_SW_CTL);
i2c_set_adapdata(&dev->i2c_bus[0], dev);
strscpy(dev->i2c_bus[0].name, "SMI-I2C0", sizeof(dev->i2c_bus[0].name));
dev->i2c_bus[0].owner = THIS_MODULE;
dev->i2c_bus[0].dev.parent = &dev->pci_dev->dev;
dev->i2c_bus[0].algo_data = &dev->i2c_bit[0];
dev->i2c_bit[0].data = dev;
dev->i2c_bit[0].setsda = smi_i2c0_setsda;
dev->i2c_bit[0].setscl = smi_i2c0_setscl;
dev->i2c_bit[0].getsda = smi_i2c0_getsda;
dev->i2c_bit[0].getscl = smi_i2c0_getscl;
dev->i2c_bit[0].udelay = 12;
dev->i2c_bit[0].timeout = 10;
/* Raise SCL and SDA */
smi_i2c0_setsda(dev, 1);
smi_i2c0_setscl(dev, 1);
ret = i2c_bit_add_bus(&dev->i2c_bus[0]);
if (ret < 0)
return ret;
/* i2c bus 1 */
smi_i2c_cfg(dev, I2C_B_SW_CTL);
i2c_set_adapdata(&dev->i2c_bus[1], dev);
strscpy(dev->i2c_bus[1].name, "SMI-I2C1", sizeof(dev->i2c_bus[1].name));
dev->i2c_bus[1].owner = THIS_MODULE;
dev->i2c_bus[1].dev.parent = &dev->pci_dev->dev;
dev->i2c_bus[1].algo_data = &dev->i2c_bit[1];
dev->i2c_bit[1].data = dev;
dev->i2c_bit[1].setsda = smi_i2c1_setsda;
dev->i2c_bit[1].setscl = smi_i2c1_setscl;
dev->i2c_bit[1].getsda = smi_i2c1_getsda;
dev->i2c_bit[1].getscl = smi_i2c1_getscl;
dev->i2c_bit[1].udelay = 12;
dev->i2c_bit[1].timeout = 10;
/* Raise SCL and SDA */
smi_i2c1_setsda(dev, 1);
smi_i2c1_setscl(dev, 1);
ret = i2c_bit_add_bus(&dev->i2c_bus[1]);
if (ret < 0)
i2c_del_adapter(&dev->i2c_bus[0]);
return ret;
}
static void smi_i2c_exit(struct smi_dev *dev)
{
i2c_del_adapter(&dev->i2c_bus[0]);
i2c_del_adapter(&dev->i2c_bus[1]);
}
static int smi_read_eeprom(struct i2c_adapter *i2c, u16 reg, u8 *data, u16 size)
{
int ret;
u8 b0[2] = { (reg >> 8) & 0xff, reg & 0xff };
struct i2c_msg msg[] = {
{ .addr = 0x50, .flags = 0,
.buf = b0, .len = 2 },
{ .addr = 0x50, .flags = I2C_M_RD,
.buf = data, .len = size }
};
ret = i2c_transfer(i2c, msg, 2);
if (ret != 2) {
dev_err(&i2c->dev, "%s: reg=0x%x (error=%d)\n",
__func__, reg, ret);
return ret;
}
return ret;
}
/* ts port interrupt operations */
static void smi_port_disableInterrupt(struct smi_port *port)
{
struct smi_dev *dev = port->dev;
smi_write(MSI_INT_ENA_CLR,
(port->_dmaInterruptCH0 | port->_dmaInterruptCH1));
}
static void smi_port_enableInterrupt(struct smi_port *port)
{
struct smi_dev *dev = port->dev;
smi_write(MSI_INT_ENA_SET,
(port->_dmaInterruptCH0 | port->_dmaInterruptCH1));
}
static void smi_port_clearInterrupt(struct smi_port *port)
{
struct smi_dev *dev = port->dev;
smi_write(MSI_INT_STATUS_CLR,
(port->_dmaInterruptCH0 | port->_dmaInterruptCH1));
}
/* tasklet handler: DMA data to dmx.*/
static void smi_dma_xfer(struct tasklet_struct *t)
{
struct smi_port *port = from_tasklet(port, t, tasklet);
struct smi_dev *dev = port->dev;
u32 intr_status, finishedData, dmaManagement;
u8 dmaChan0State, dmaChan1State;
intr_status = port->_int_status;
dmaManagement = smi_read(port->DMA_MANAGEMENT);
dmaChan0State = (u8)((dmaManagement & 0x00000030) >> 4);
dmaChan1State = (u8)((dmaManagement & 0x00300000) >> 20);
/* CH-0 DMA interrupt.*/
if ((intr_status & port->_dmaInterruptCH0) && (dmaChan0State == 0x01)) {
dev_dbg(&dev->pci_dev->dev,
"Port[%d]-DMA CH0 engine complete successful !\n",
port->idx);
finishedData = smi_read(port->DMA_CHAN0_TRANS_STATE);
finishedData &= 0x003FFFFF;
/* value of DMA_PORT0_CHAN0_TRANS_STATE register [21:0]
* indicate dma total transfer length and
* zero of [21:0] indicate dma total transfer length
* equal to 0x400000 (4MB)*/
if (finishedData == 0)
finishedData = 0x00400000;
if (finishedData != SMI_TS_DMA_BUF_SIZE) {
dev_dbg(&dev->pci_dev->dev,
"DMA CH0 engine complete length mismatched, finish data=%d !\n",
finishedData);
}
dvb_dmx_swfilter_packets(&port->demux,
port->cpu_addr[0], (finishedData / 188));
/*dvb_dmx_swfilter(&port->demux,
port->cpu_addr[0], finishedData);*/
}
/* CH-1 DMA interrupt.*/
if ((intr_status & port->_dmaInterruptCH1) && (dmaChan1State == 0x01)) {
dev_dbg(&dev->pci_dev->dev,
"Port[%d]-DMA CH1 engine complete successful !\n",
port->idx);
finishedData = smi_read(port->DMA_CHAN1_TRANS_STATE);
finishedData &= 0x003FFFFF;
/* value of DMA_PORT0_CHAN0_TRANS_STATE register [21:0]
* indicate dma total transfer length and
* zero of [21:0] indicate dma total transfer length
* equal to 0x400000 (4MB)*/
if (finishedData == 0)
finishedData = 0x00400000;
if (finishedData != SMI_TS_DMA_BUF_SIZE) {
dev_dbg(&dev->pci_dev->dev,
"DMA CH1 engine complete length mismatched, finish data=%d !\n",
finishedData);
}
dvb_dmx_swfilter_packets(&port->demux,
port->cpu_addr[1], (finishedData / 188));
/*dvb_dmx_swfilter(&port->demux,
port->cpu_addr[1], finishedData);*/
}
/* restart DMA.*/
if (intr_status & port->_dmaInterruptCH0)
dmaManagement |= 0x00000002;
if (intr_status & port->_dmaInterruptCH1)
dmaManagement |= 0x00020000;
smi_write(port->DMA_MANAGEMENT, dmaManagement);
/* Re-enable interrupts */
smi_port_enableInterrupt(port);
}
static void smi_port_dma_free(struct smi_port *port)
{
if (port->cpu_addr[0]) {
media: smipcie: switch from 'pci_' to 'dma_' API The wrappers in include/linux/pci-dma-compat.h should go away. The patch has been generated with the coccinelle script below and has been hand modified to replace GFP_ with a correct flag. It has been compile tested. When memory is allocated in 'smi_port_init()' GFP_KERNEL can be used because this function is called only from the probe function and no lock is taken in between. The call chain is: smi_probe() --> smi_port_attach() --> smi_port_init() @@ @@ - PCI_DMA_BIDIRECTIONAL + DMA_BIDIRECTIONAL @@ @@ - PCI_DMA_TODEVICE + DMA_TO_DEVICE @@ @@ - PCI_DMA_FROMDEVICE + DMA_FROM_DEVICE @@ @@ - PCI_DMA_NONE + DMA_NONE @@ expression e1, e2, e3; @@ - pci_alloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3; @@ - pci_zalloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3, e4; @@ - pci_free_consistent(e1, e2, e3, e4) + dma_free_coherent(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_single(e1, e2, e3, e4) + dma_map_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_single(e1, e2, e3, e4) + dma_unmap_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4, e5; @@ - pci_map_page(e1, e2, e3, e4, e5) + dma_map_page(&e1->dev, e2, e3, e4, e5) @@ expression e1, e2, e3, e4; @@ - pci_unmap_page(e1, e2, e3, e4) + dma_unmap_page(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_sg(e1, e2, e3, e4) + dma_map_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_sg(e1, e2, e3, e4) + dma_unmap_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_cpu(e1, e2, e3, e4) + dma_sync_single_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_device(e1, e2, e3, e4) + dma_sync_single_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_cpu(e1, e2, e3, e4) + dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_device(e1, e2, e3, e4) + dma_sync_sg_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2; @@ - pci_dma_mapping_error(e1, e2) + dma_mapping_error(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_dma_mask(e1, e2) + dma_set_mask(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_consistent_dma_mask(e1, e2) + dma_set_coherent_mask(&e1->dev, e2) Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-01-16 05:34:03 +08:00
dma_free_coherent(&port->dev->pci_dev->dev,
SMI_TS_DMA_BUF_SIZE, port->cpu_addr[0],
port->dma_addr[0]);
port->cpu_addr[0] = NULL;
}
if (port->cpu_addr[1]) {
media: smipcie: switch from 'pci_' to 'dma_' API The wrappers in include/linux/pci-dma-compat.h should go away. The patch has been generated with the coccinelle script below and has been hand modified to replace GFP_ with a correct flag. It has been compile tested. When memory is allocated in 'smi_port_init()' GFP_KERNEL can be used because this function is called only from the probe function and no lock is taken in between. The call chain is: smi_probe() --> smi_port_attach() --> smi_port_init() @@ @@ - PCI_DMA_BIDIRECTIONAL + DMA_BIDIRECTIONAL @@ @@ - PCI_DMA_TODEVICE + DMA_TO_DEVICE @@ @@ - PCI_DMA_FROMDEVICE + DMA_FROM_DEVICE @@ @@ - PCI_DMA_NONE + DMA_NONE @@ expression e1, e2, e3; @@ - pci_alloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3; @@ - pci_zalloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3, e4; @@ - pci_free_consistent(e1, e2, e3, e4) + dma_free_coherent(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_single(e1, e2, e3, e4) + dma_map_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_single(e1, e2, e3, e4) + dma_unmap_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4, e5; @@ - pci_map_page(e1, e2, e3, e4, e5) + dma_map_page(&e1->dev, e2, e3, e4, e5) @@ expression e1, e2, e3, e4; @@ - pci_unmap_page(e1, e2, e3, e4) + dma_unmap_page(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_sg(e1, e2, e3, e4) + dma_map_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_sg(e1, e2, e3, e4) + dma_unmap_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_cpu(e1, e2, e3, e4) + dma_sync_single_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_device(e1, e2, e3, e4) + dma_sync_single_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_cpu(e1, e2, e3, e4) + dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_device(e1, e2, e3, e4) + dma_sync_sg_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2; @@ - pci_dma_mapping_error(e1, e2) + dma_mapping_error(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_dma_mask(e1, e2) + dma_set_mask(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_consistent_dma_mask(e1, e2) + dma_set_coherent_mask(&e1->dev, e2) Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-01-16 05:34:03 +08:00
dma_free_coherent(&port->dev->pci_dev->dev,
SMI_TS_DMA_BUF_SIZE, port->cpu_addr[1],
port->dma_addr[1]);
port->cpu_addr[1] = NULL;
}
}
static int smi_port_init(struct smi_port *port, int dmaChanUsed)
{
dev_dbg(&port->dev->pci_dev->dev,
"%s, port %d, dmaused %d\n", __func__, port->idx, dmaChanUsed);
port->enable = 0;
if (port->idx == 0) {
/* Port A */
port->_dmaInterruptCH0 = dmaChanUsed & 0x01;
port->_dmaInterruptCH1 = dmaChanUsed & 0x02;
port->DMA_CHAN0_ADDR_LOW = DMA_PORTA_CHAN0_ADDR_LOW;
port->DMA_CHAN0_ADDR_HI = DMA_PORTA_CHAN0_ADDR_HI;
port->DMA_CHAN0_TRANS_STATE = DMA_PORTA_CHAN0_TRANS_STATE;
port->DMA_CHAN0_CONTROL = DMA_PORTA_CHAN0_CONTROL;
port->DMA_CHAN1_ADDR_LOW = DMA_PORTA_CHAN1_ADDR_LOW;
port->DMA_CHAN1_ADDR_HI = DMA_PORTA_CHAN1_ADDR_HI;
port->DMA_CHAN1_TRANS_STATE = DMA_PORTA_CHAN1_TRANS_STATE;
port->DMA_CHAN1_CONTROL = DMA_PORTA_CHAN1_CONTROL;
port->DMA_MANAGEMENT = DMA_PORTA_MANAGEMENT;
} else {
/* Port B */
port->_dmaInterruptCH0 = (dmaChanUsed << 2) & 0x04;
port->_dmaInterruptCH1 = (dmaChanUsed << 2) & 0x08;
port->DMA_CHAN0_ADDR_LOW = DMA_PORTB_CHAN0_ADDR_LOW;
port->DMA_CHAN0_ADDR_HI = DMA_PORTB_CHAN0_ADDR_HI;
port->DMA_CHAN0_TRANS_STATE = DMA_PORTB_CHAN0_TRANS_STATE;
port->DMA_CHAN0_CONTROL = DMA_PORTB_CHAN0_CONTROL;
port->DMA_CHAN1_ADDR_LOW = DMA_PORTB_CHAN1_ADDR_LOW;
port->DMA_CHAN1_ADDR_HI = DMA_PORTB_CHAN1_ADDR_HI;
port->DMA_CHAN1_TRANS_STATE = DMA_PORTB_CHAN1_TRANS_STATE;
port->DMA_CHAN1_CONTROL = DMA_PORTB_CHAN1_CONTROL;
port->DMA_MANAGEMENT = DMA_PORTB_MANAGEMENT;
}
if (port->_dmaInterruptCH0) {
media: smipcie: switch from 'pci_' to 'dma_' API The wrappers in include/linux/pci-dma-compat.h should go away. The patch has been generated with the coccinelle script below and has been hand modified to replace GFP_ with a correct flag. It has been compile tested. When memory is allocated in 'smi_port_init()' GFP_KERNEL can be used because this function is called only from the probe function and no lock is taken in between. The call chain is: smi_probe() --> smi_port_attach() --> smi_port_init() @@ @@ - PCI_DMA_BIDIRECTIONAL + DMA_BIDIRECTIONAL @@ @@ - PCI_DMA_TODEVICE + DMA_TO_DEVICE @@ @@ - PCI_DMA_FROMDEVICE + DMA_FROM_DEVICE @@ @@ - PCI_DMA_NONE + DMA_NONE @@ expression e1, e2, e3; @@ - pci_alloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3; @@ - pci_zalloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3, e4; @@ - pci_free_consistent(e1, e2, e3, e4) + dma_free_coherent(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_single(e1, e2, e3, e4) + dma_map_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_single(e1, e2, e3, e4) + dma_unmap_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4, e5; @@ - pci_map_page(e1, e2, e3, e4, e5) + dma_map_page(&e1->dev, e2, e3, e4, e5) @@ expression e1, e2, e3, e4; @@ - pci_unmap_page(e1, e2, e3, e4) + dma_unmap_page(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_sg(e1, e2, e3, e4) + dma_map_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_sg(e1, e2, e3, e4) + dma_unmap_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_cpu(e1, e2, e3, e4) + dma_sync_single_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_device(e1, e2, e3, e4) + dma_sync_single_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_cpu(e1, e2, e3, e4) + dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_device(e1, e2, e3, e4) + dma_sync_sg_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2; @@ - pci_dma_mapping_error(e1, e2) + dma_mapping_error(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_dma_mask(e1, e2) + dma_set_mask(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_consistent_dma_mask(e1, e2) + dma_set_coherent_mask(&e1->dev, e2) Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-01-16 05:34:03 +08:00
port->cpu_addr[0] = dma_alloc_coherent(&port->dev->pci_dev->dev,
SMI_TS_DMA_BUF_SIZE,
&port->dma_addr[0],
GFP_KERNEL);
if (!port->cpu_addr[0]) {
dev_err(&port->dev->pci_dev->dev,
"Port[%d] DMA CH0 memory allocation failed!\n",
port->idx);
goto err;
}
}
if (port->_dmaInterruptCH1) {
media: smipcie: switch from 'pci_' to 'dma_' API The wrappers in include/linux/pci-dma-compat.h should go away. The patch has been generated with the coccinelle script below and has been hand modified to replace GFP_ with a correct flag. It has been compile tested. When memory is allocated in 'smi_port_init()' GFP_KERNEL can be used because this function is called only from the probe function and no lock is taken in between. The call chain is: smi_probe() --> smi_port_attach() --> smi_port_init() @@ @@ - PCI_DMA_BIDIRECTIONAL + DMA_BIDIRECTIONAL @@ @@ - PCI_DMA_TODEVICE + DMA_TO_DEVICE @@ @@ - PCI_DMA_FROMDEVICE + DMA_FROM_DEVICE @@ @@ - PCI_DMA_NONE + DMA_NONE @@ expression e1, e2, e3; @@ - pci_alloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3; @@ - pci_zalloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3, e4; @@ - pci_free_consistent(e1, e2, e3, e4) + dma_free_coherent(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_single(e1, e2, e3, e4) + dma_map_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_single(e1, e2, e3, e4) + dma_unmap_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4, e5; @@ - pci_map_page(e1, e2, e3, e4, e5) + dma_map_page(&e1->dev, e2, e3, e4, e5) @@ expression e1, e2, e3, e4; @@ - pci_unmap_page(e1, e2, e3, e4) + dma_unmap_page(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_sg(e1, e2, e3, e4) + dma_map_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_sg(e1, e2, e3, e4) + dma_unmap_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_cpu(e1, e2, e3, e4) + dma_sync_single_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_device(e1, e2, e3, e4) + dma_sync_single_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_cpu(e1, e2, e3, e4) + dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_device(e1, e2, e3, e4) + dma_sync_sg_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2; @@ - pci_dma_mapping_error(e1, e2) + dma_mapping_error(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_dma_mask(e1, e2) + dma_set_mask(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_consistent_dma_mask(e1, e2) + dma_set_coherent_mask(&e1->dev, e2) Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-01-16 05:34:03 +08:00
port->cpu_addr[1] = dma_alloc_coherent(&port->dev->pci_dev->dev,
SMI_TS_DMA_BUF_SIZE,
&port->dma_addr[1],
GFP_KERNEL);
if (!port->cpu_addr[1]) {
dev_err(&port->dev->pci_dev->dev,
"Port[%d] DMA CH1 memory allocation failed!\n",
port->idx);
goto err;
}
}
smi_port_disableInterrupt(port);
tasklet_setup(&port->tasklet, smi_dma_xfer);
tasklet_disable(&port->tasklet);
port->enable = 1;
return 0;
err:
smi_port_dma_free(port);
return -ENOMEM;
}
static void smi_port_exit(struct smi_port *port)
{
smi_port_disableInterrupt(port);
tasklet_kill(&port->tasklet);
smi_port_dma_free(port);
port->enable = 0;
}
static int smi_port_irq(struct smi_port *port, u32 int_status)
{
u32 port_req_irq = port->_dmaInterruptCH0 | port->_dmaInterruptCH1;
int handled = 0;
if (int_status & port_req_irq) {
smi_port_disableInterrupt(port);
port->_int_status = int_status;
smi_port_clearInterrupt(port);
tasklet_schedule(&port->tasklet);
handled = 1;
}
return handled;
}
static irqreturn_t smi_irq_handler(int irq, void *dev_id)
{
struct smi_dev *dev = dev_id;
struct smi_port *port0 = &dev->ts_port[0];
struct smi_port *port1 = &dev->ts_port[1];
struct smi_rc *ir = &dev->ir;
int handled = 0;
u32 intr_status = smi_read(MSI_INT_STATUS);
/* ts0 interrupt.*/
if (dev->info->ts_0)
handled += smi_port_irq(port0, intr_status);
/* ts1 interrupt.*/
if (dev->info->ts_1)
handled += smi_port_irq(port1, intr_status);
/* ir interrupt.*/
handled += smi_ir_irq(ir, intr_status);
return IRQ_RETVAL(handled);
}
static struct i2c_client *smi_add_i2c_client(struct i2c_adapter *adapter,
struct i2c_board_info *info)
{
struct i2c_client *client;
request_module(info->type);
client = i2c_new_client_device(adapter, info);
if (!i2c_client_has_driver(client))
goto err_add_i2c_client;
if (!try_module_get(client->dev.driver->owner)) {
i2c_unregister_device(client);
goto err_add_i2c_client;
}
return client;
err_add_i2c_client:
client = NULL;
return client;
}
static void smi_del_i2c_client(struct i2c_client *client)
{
module_put(client->dev.driver->owner);
i2c_unregister_device(client);
}
static const struct m88ds3103_config smi_dvbsky_m88ds3103_cfg = {
.i2c_addr = 0x68,
.clock = 27000000,
.i2c_wr_max = 33,
.clock_out = 0,
.ts_mode = M88DS3103_TS_PARALLEL,
.ts_clk = 16000,
.ts_clk_pol = 1,
.agc = 0x99,
.lnb_hv_pol = 0,
.lnb_en_pol = 1,
};
static int smi_dvbsky_m88ds3103_fe_attach(struct smi_port *port)
{
int ret = 0;
struct smi_dev *dev = port->dev;
struct i2c_adapter *i2c;
/* tuner I2C module */
struct i2c_adapter *tuner_i2c_adapter;
struct i2c_client *tuner_client;
struct i2c_board_info tuner_info;
struct ts2020_config ts2020_config = {};
memset(&tuner_info, 0, sizeof(struct i2c_board_info));
i2c = (port->idx == 0) ? &dev->i2c_bus[0] : &dev->i2c_bus[1];
/* attach demod */
port->fe = dvb_attach(m88ds3103_attach,
&smi_dvbsky_m88ds3103_cfg, i2c, &tuner_i2c_adapter);
if (!port->fe) {
ret = -ENODEV;
return ret;
}
/* attach tuner */
ts2020_config.fe = port->fe;
strscpy(tuner_info.type, "ts2020", I2C_NAME_SIZE);
tuner_info.addr = 0x60;
tuner_info.platform_data = &ts2020_config;
tuner_client = smi_add_i2c_client(tuner_i2c_adapter, &tuner_info);
if (!tuner_client) {
ret = -ENODEV;
goto err_tuner_i2c_device;
}
/* delegate signal strength measurement to tuner */
port->fe->ops.read_signal_strength =
port->fe->ops.tuner_ops.get_rf_strength;
port->i2c_client_tuner = tuner_client;
return ret;
err_tuner_i2c_device:
dvb_frontend_detach(port->fe);
return ret;
}
static const struct m88ds3103_config smi_dvbsky_m88rs6000_cfg = {
.i2c_addr = 0x69,
.clock = 27000000,
.i2c_wr_max = 33,
.ts_mode = M88DS3103_TS_PARALLEL,
.ts_clk = 16000,
.ts_clk_pol = 1,
.agc = 0x99,
.lnb_hv_pol = 0,
.lnb_en_pol = 1,
};
static int smi_dvbsky_m88rs6000_fe_attach(struct smi_port *port)
{
int ret = 0;
struct smi_dev *dev = port->dev;
struct i2c_adapter *i2c;
/* tuner I2C module */
struct i2c_adapter *tuner_i2c_adapter;
struct i2c_client *tuner_client;
struct i2c_board_info tuner_info;
struct m88rs6000t_config m88rs6000t_config;
memset(&tuner_info, 0, sizeof(struct i2c_board_info));
i2c = (port->idx == 0) ? &dev->i2c_bus[0] : &dev->i2c_bus[1];
/* attach demod */
port->fe = dvb_attach(m88ds3103_attach,
&smi_dvbsky_m88rs6000_cfg, i2c, &tuner_i2c_adapter);
if (!port->fe) {
ret = -ENODEV;
return ret;
}
/* attach tuner */
m88rs6000t_config.fe = port->fe;
strscpy(tuner_info.type, "m88rs6000t", I2C_NAME_SIZE);
tuner_info.addr = 0x21;
tuner_info.platform_data = &m88rs6000t_config;
tuner_client = smi_add_i2c_client(tuner_i2c_adapter, &tuner_info);
if (!tuner_client) {
ret = -ENODEV;
goto err_tuner_i2c_device;
}
/* delegate signal strength measurement to tuner */
port->fe->ops.read_signal_strength =
port->fe->ops.tuner_ops.get_rf_strength;
port->i2c_client_tuner = tuner_client;
return ret;
err_tuner_i2c_device:
dvb_frontend_detach(port->fe);
return ret;
}
static int smi_dvbsky_sit2_fe_attach(struct smi_port *port)
{
int ret = 0;
struct smi_dev *dev = port->dev;
struct i2c_adapter *i2c;
struct i2c_adapter *tuner_i2c_adapter;
struct i2c_client *client_tuner, *client_demod;
struct i2c_board_info client_info;
struct si2168_config si2168_config;
struct si2157_config si2157_config;
/* select i2c bus */
i2c = (port->idx == 0) ? &dev->i2c_bus[0] : &dev->i2c_bus[1];
/* attach demod */
memset(&si2168_config, 0, sizeof(si2168_config));
si2168_config.i2c_adapter = &tuner_i2c_adapter;
si2168_config.fe = &port->fe;
si2168_config.ts_mode = SI2168_TS_PARALLEL;
memset(&client_info, 0, sizeof(struct i2c_board_info));
strscpy(client_info.type, "si2168", I2C_NAME_SIZE);
client_info.addr = 0x64;
client_info.platform_data = &si2168_config;
client_demod = smi_add_i2c_client(i2c, &client_info);
if (!client_demod) {
ret = -ENODEV;
return ret;
}
port->i2c_client_demod = client_demod;
/* attach tuner */
memset(&si2157_config, 0, sizeof(si2157_config));
si2157_config.fe = port->fe;
si2157_config.if_port = 1;
memset(&client_info, 0, sizeof(struct i2c_board_info));
strscpy(client_info.type, "si2157", I2C_NAME_SIZE);
client_info.addr = 0x60;
client_info.platform_data = &si2157_config;
client_tuner = smi_add_i2c_client(tuner_i2c_adapter, &client_info);
if (!client_tuner) {
smi_del_i2c_client(port->i2c_client_demod);
port->i2c_client_demod = NULL;
ret = -ENODEV;
return ret;
}
port->i2c_client_tuner = client_tuner;
return ret;
}
static int smi_fe_init(struct smi_port *port)
{
int ret = 0;
struct smi_dev *dev = port->dev;
struct dvb_adapter *adap = &port->dvb_adapter;
u8 mac_ee[16];
dev_dbg(&port->dev->pci_dev->dev,
"%s: port %d, fe_type = %d\n",
__func__, port->idx, port->fe_type);
switch (port->fe_type) {
case DVBSKY_FE_M88DS3103:
ret = smi_dvbsky_m88ds3103_fe_attach(port);
break;
case DVBSKY_FE_M88RS6000:
ret = smi_dvbsky_m88rs6000_fe_attach(port);
break;
case DVBSKY_FE_SIT2:
ret = smi_dvbsky_sit2_fe_attach(port);
break;
}
if (ret < 0)
return ret;
/* register dvb frontend */
ret = dvb_register_frontend(adap, port->fe);
if (ret < 0) {
if (port->i2c_client_tuner)
smi_del_i2c_client(port->i2c_client_tuner);
if (port->i2c_client_demod)
smi_del_i2c_client(port->i2c_client_demod);
dvb_frontend_detach(port->fe);
return ret;
}
/* init MAC.*/
ret = smi_read_eeprom(&dev->i2c_bus[0], 0xc0, mac_ee, 16);
dev_info(&port->dev->pci_dev->dev,
"%s port %d MAC: %pM\n", dev->info->name,
port->idx, mac_ee + (port->idx)*8);
memcpy(adap->proposed_mac, mac_ee + (port->idx)*8, 6);
return ret;
}
static void smi_fe_exit(struct smi_port *port)
{
dvb_unregister_frontend(port->fe);
/* remove I2C demod and tuner */
if (port->i2c_client_tuner)
smi_del_i2c_client(port->i2c_client_tuner);
if (port->i2c_client_demod)
smi_del_i2c_client(port->i2c_client_demod);
dvb_frontend_detach(port->fe);
}
static int my_dvb_dmx_ts_card_init(struct dvb_demux *dvbdemux, char *id,
int (*start_feed)(struct dvb_demux_feed *),
int (*stop_feed)(struct dvb_demux_feed *),
void *priv)
{
dvbdemux->priv = priv;
dvbdemux->filternum = 256;
dvbdemux->feednum = 256;
dvbdemux->start_feed = start_feed;
dvbdemux->stop_feed = stop_feed;
dvbdemux->write_to_decoder = NULL;
dvbdemux->dmx.capabilities = (DMX_TS_FILTERING |
DMX_SECTION_FILTERING |
DMX_MEMORY_BASED_FILTERING);
return dvb_dmx_init(dvbdemux);
}
static int my_dvb_dmxdev_ts_card_init(struct dmxdev *dmxdev,
struct dvb_demux *dvbdemux,
struct dmx_frontend *hw_frontend,
struct dmx_frontend *mem_frontend,
struct dvb_adapter *dvb_adapter)
{
int ret;
dmxdev->filternum = 256;
dmxdev->demux = &dvbdemux->dmx;
dmxdev->capabilities = 0;
ret = dvb_dmxdev_init(dmxdev, dvb_adapter);
if (ret < 0)
return ret;
hw_frontend->source = DMX_FRONTEND_0;
dvbdemux->dmx.add_frontend(&dvbdemux->dmx, hw_frontend);
mem_frontend->source = DMX_MEMORY_FE;
dvbdemux->dmx.add_frontend(&dvbdemux->dmx, mem_frontend);
return dvbdemux->dmx.connect_frontend(&dvbdemux->dmx, hw_frontend);
}
static u32 smi_config_DMA(struct smi_port *port)
{
struct smi_dev *dev = port->dev;
u32 totalLength = 0, dmaMemPtrLow, dmaMemPtrHi, dmaCtlReg;
u8 chanLatencyTimer = 0, dmaChanEnable = 1, dmaTransStart = 1;
u32 dmaManagement = 0, tlpTransUnit = DMA_TRANS_UNIT_188;
u8 tlpTc = 0, tlpTd = 1, tlpEp = 0, tlpAttr = 0;
u64 mem;
dmaManagement = smi_read(port->DMA_MANAGEMENT);
/* Setup Channel-0 */
if (port->_dmaInterruptCH0) {
totalLength = SMI_TS_DMA_BUF_SIZE;
mem = port->dma_addr[0];
dmaMemPtrLow = mem & 0xffffffff;
dmaMemPtrHi = mem >> 32;
dmaCtlReg = (totalLength) | (tlpTransUnit << 22) | (tlpTc << 25)
| (tlpTd << 28) | (tlpEp << 29) | (tlpAttr << 30);
dmaManagement |= dmaChanEnable | (dmaTransStart << 1)
| (chanLatencyTimer << 8);
/* write DMA register, start DMA engine */
smi_write(port->DMA_CHAN0_ADDR_LOW, dmaMemPtrLow);
smi_write(port->DMA_CHAN0_ADDR_HI, dmaMemPtrHi);
smi_write(port->DMA_CHAN0_CONTROL, dmaCtlReg);
}
/* Setup Channel-1 */
if (port->_dmaInterruptCH1) {
totalLength = SMI_TS_DMA_BUF_SIZE;
mem = port->dma_addr[1];
dmaMemPtrLow = mem & 0xffffffff;
dmaMemPtrHi = mem >> 32;
dmaCtlReg = (totalLength) | (tlpTransUnit << 22) | (tlpTc << 25)
| (tlpTd << 28) | (tlpEp << 29) | (tlpAttr << 30);
dmaManagement |= (dmaChanEnable << 16) | (dmaTransStart << 17)
| (chanLatencyTimer << 24);
/* write DMA register, start DMA engine */
smi_write(port->DMA_CHAN1_ADDR_LOW, dmaMemPtrLow);
smi_write(port->DMA_CHAN1_ADDR_HI, dmaMemPtrHi);
smi_write(port->DMA_CHAN1_CONTROL, dmaCtlReg);
}
return dmaManagement;
}
static int smi_start_feed(struct dvb_demux_feed *dvbdmxfeed)
{
struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
struct smi_port *port = dvbdmx->priv;
struct smi_dev *dev = port->dev;
u32 dmaManagement;
if (port->users++ == 0) {
dmaManagement = smi_config_DMA(port);
smi_port_clearInterrupt(port);
smi_port_enableInterrupt(port);
smi_write(port->DMA_MANAGEMENT, dmaManagement);
tasklet_enable(&port->tasklet);
}
return port->users;
}
static int smi_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
{
struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
struct smi_port *port = dvbdmx->priv;
struct smi_dev *dev = port->dev;
if (--port->users)
return port->users;
tasklet_disable(&port->tasklet);
smi_port_disableInterrupt(port);
smi_clear(port->DMA_MANAGEMENT, 0x30003);
return 0;
}
static int smi_dvb_init(struct smi_port *port)
{
int ret;
struct dvb_adapter *adap = &port->dvb_adapter;
struct dvb_demux *dvbdemux = &port->demux;
dev_dbg(&port->dev->pci_dev->dev,
"%s, port %d\n", __func__, port->idx);
ret = dvb_register_adapter(adap, "SMI_DVB", THIS_MODULE,
&port->dev->pci_dev->dev,
adapter_nr);
if (ret < 0) {
dev_err(&port->dev->pci_dev->dev, "Fail to register DVB adapter.\n");
return ret;
}
ret = my_dvb_dmx_ts_card_init(dvbdemux, "SW demux",
smi_start_feed,
smi_stop_feed, port);
if (ret < 0)
goto err_del_dvb_register_adapter;
ret = my_dvb_dmxdev_ts_card_init(&port->dmxdev, &port->demux,
&port->hw_frontend,
&port->mem_frontend, adap);
if (ret < 0)
goto err_del_dvb_dmx;
ret = dvb_net_init(adap, &port->dvbnet, port->dmxdev.demux);
if (ret < 0)
goto err_del_dvb_dmxdev;
return 0;
err_del_dvb_dmxdev:
dvbdemux->dmx.close(&dvbdemux->dmx);
dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &port->hw_frontend);
dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &port->mem_frontend);
dvb_dmxdev_release(&port->dmxdev);
err_del_dvb_dmx:
dvb_dmx_release(&port->demux);
err_del_dvb_register_adapter:
dvb_unregister_adapter(&port->dvb_adapter);
return ret;
}
static void smi_dvb_exit(struct smi_port *port)
{
struct dvb_demux *dvbdemux = &port->demux;
dvb_net_release(&port->dvbnet);
dvbdemux->dmx.close(&dvbdemux->dmx);
dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &port->hw_frontend);
dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &port->mem_frontend);
dvb_dmxdev_release(&port->dmxdev);
dvb_dmx_release(&port->demux);
dvb_unregister_adapter(&port->dvb_adapter);
}
static int smi_port_attach(struct smi_dev *dev,
struct smi_port *port, int index)
{
int ret, dmachs;
port->dev = dev;
port->idx = index;
port->fe_type = (index == 0) ? dev->info->fe_0 : dev->info->fe_1;
dmachs = (index == 0) ? dev->info->ts_0 : dev->info->ts_1;
/* port init.*/
ret = smi_port_init(port, dmachs);
if (ret < 0)
return ret;
/* dvb init.*/
ret = smi_dvb_init(port);
if (ret < 0)
goto err_del_port_init;
/* fe init.*/
ret = smi_fe_init(port);
if (ret < 0)
goto err_del_dvb_init;
return 0;
err_del_dvb_init:
smi_dvb_exit(port);
err_del_port_init:
smi_port_exit(port);
return ret;
}
static void smi_port_detach(struct smi_port *port)
{
smi_fe_exit(port);
smi_dvb_exit(port);
smi_port_exit(port);
}
static int smi_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct smi_dev *dev;
int ret = -ENOMEM;
if (pci_enable_device(pdev) < 0)
return -ENODEV;
dev = kzalloc(sizeof(struct smi_dev), GFP_KERNEL);
if (!dev) {
ret = -ENOMEM;
goto err_pci_disable_device;
}
dev->pci_dev = pdev;
pci_set_drvdata(pdev, dev);
dev->info = (struct smi_cfg_info *) id->driver_data;
dev_info(&dev->pci_dev->dev,
"card detected: %s\n", dev->info->name);
dev->nr = dev->info->type;
dev->lmmio = ioremap(pci_resource_start(dev->pci_dev, 0),
pci_resource_len(dev->pci_dev, 0));
if (!dev->lmmio) {
ret = -ENOMEM;
goto err_kfree;
}
/* should we set to 32bit DMA? */
media: smipcie: switch from 'pci_' to 'dma_' API The wrappers in include/linux/pci-dma-compat.h should go away. The patch has been generated with the coccinelle script below and has been hand modified to replace GFP_ with a correct flag. It has been compile tested. When memory is allocated in 'smi_port_init()' GFP_KERNEL can be used because this function is called only from the probe function and no lock is taken in between. The call chain is: smi_probe() --> smi_port_attach() --> smi_port_init() @@ @@ - PCI_DMA_BIDIRECTIONAL + DMA_BIDIRECTIONAL @@ @@ - PCI_DMA_TODEVICE + DMA_TO_DEVICE @@ @@ - PCI_DMA_FROMDEVICE + DMA_FROM_DEVICE @@ @@ - PCI_DMA_NONE + DMA_NONE @@ expression e1, e2, e3; @@ - pci_alloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3; @@ - pci_zalloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3, e4; @@ - pci_free_consistent(e1, e2, e3, e4) + dma_free_coherent(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_single(e1, e2, e3, e4) + dma_map_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_single(e1, e2, e3, e4) + dma_unmap_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4, e5; @@ - pci_map_page(e1, e2, e3, e4, e5) + dma_map_page(&e1->dev, e2, e3, e4, e5) @@ expression e1, e2, e3, e4; @@ - pci_unmap_page(e1, e2, e3, e4) + dma_unmap_page(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_sg(e1, e2, e3, e4) + dma_map_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_sg(e1, e2, e3, e4) + dma_unmap_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_cpu(e1, e2, e3, e4) + dma_sync_single_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_device(e1, e2, e3, e4) + dma_sync_single_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_cpu(e1, e2, e3, e4) + dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_device(e1, e2, e3, e4) + dma_sync_sg_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2; @@ - pci_dma_mapping_error(e1, e2) + dma_mapping_error(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_dma_mask(e1, e2) + dma_set_mask(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_consistent_dma_mask(e1, e2) + dma_set_coherent_mask(&e1->dev, e2) Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-01-16 05:34:03 +08:00
ret = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
if (ret < 0)
goto err_pci_iounmap;
pci_set_master(pdev);
ret = smi_hw_init(dev);
if (ret < 0)
goto err_pci_iounmap;
ret = smi_i2c_init(dev);
if (ret < 0)
goto err_pci_iounmap;
if (dev->info->ts_0) {
ret = smi_port_attach(dev, &dev->ts_port[0], 0);
if (ret < 0)
goto err_del_i2c_adaptor;
}
if (dev->info->ts_1) {
ret = smi_port_attach(dev, &dev->ts_port[1], 1);
if (ret < 0)
goto err_del_port0_attach;
}
ret = smi_ir_init(dev);
if (ret < 0)
goto err_del_port1_attach;
#ifdef CONFIG_PCI_MSI /* to do msi interrupt.???*/
if (pci_msi_enabled())
ret = pci_enable_msi(dev->pci_dev);
if (ret)
dev_info(&dev->pci_dev->dev, "MSI not available.\n");
#endif
ret = request_irq(dev->pci_dev->irq, smi_irq_handler,
IRQF_SHARED, "SMI_PCIE", dev);
if (ret < 0)
goto err_del_ir;
smi_ir_start(&dev->ir);
return 0;
err_del_ir:
smi_ir_exit(dev);
err_del_port1_attach:
if (dev->info->ts_1)
smi_port_detach(&dev->ts_port[1]);
err_del_port0_attach:
if (dev->info->ts_0)
smi_port_detach(&dev->ts_port[0]);
err_del_i2c_adaptor:
smi_i2c_exit(dev);
err_pci_iounmap:
iounmap(dev->lmmio);
err_kfree:
pci_set_drvdata(pdev, NULL);
kfree(dev);
err_pci_disable_device:
pci_disable_device(pdev);
return ret;
}
static void smi_remove(struct pci_dev *pdev)
{
struct smi_dev *dev = pci_get_drvdata(pdev);
smi_write(MSI_INT_ENA_CLR, ALL_INT);
free_irq(dev->pci_dev->irq, dev);
#ifdef CONFIG_PCI_MSI
pci_disable_msi(dev->pci_dev);
#endif
if (dev->info->ts_1)
smi_port_detach(&dev->ts_port[1]);
if (dev->info->ts_0)
smi_port_detach(&dev->ts_port[0]);
smi_ir_exit(dev);
smi_i2c_exit(dev);
iounmap(dev->lmmio);
pci_set_drvdata(pdev, NULL);
pci_disable_device(pdev);
kfree(dev);
}
/* DVBSky cards */
static const struct smi_cfg_info dvbsky_s950_cfg = {
.type = SMI_DVBSKY_S950,
.name = "DVBSky S950 V3",
.ts_0 = SMI_TS_NULL,
.ts_1 = SMI_TS_DMA_BOTH,
.fe_0 = DVBSKY_FE_NULL,
.fe_1 = DVBSKY_FE_M88DS3103,
.rc_map = RC_MAP_DVBSKY,
};
static const struct smi_cfg_info dvbsky_s952_cfg = {
.type = SMI_DVBSKY_S952,
.name = "DVBSky S952 V3",
.ts_0 = SMI_TS_DMA_BOTH,
.ts_1 = SMI_TS_DMA_BOTH,
.fe_0 = DVBSKY_FE_M88RS6000,
.fe_1 = DVBSKY_FE_M88RS6000,
.rc_map = RC_MAP_DVBSKY,
};
static const struct smi_cfg_info dvbsky_t9580_cfg = {
.type = SMI_DVBSKY_T9580,
.name = "DVBSky T9580 V3",
.ts_0 = SMI_TS_DMA_BOTH,
.ts_1 = SMI_TS_DMA_BOTH,
.fe_0 = DVBSKY_FE_SIT2,
.fe_1 = DVBSKY_FE_M88DS3103,
.rc_map = RC_MAP_DVBSKY,
};
static const struct smi_cfg_info technotrend_s2_4200_cfg = {
.type = SMI_TECHNOTREND_S2_4200,
.name = "TechnoTrend TT-budget S2-4200 Twin",
.ts_0 = SMI_TS_DMA_BOTH,
.ts_1 = SMI_TS_DMA_BOTH,
.fe_0 = DVBSKY_FE_M88RS6000,
.fe_1 = DVBSKY_FE_M88RS6000,
.rc_map = RC_MAP_TT_1500,
};
/* PCI IDs */
#define SMI_ID(_subvend, _subdev, _driverdata) { \
.vendor = SMI_VID, .device = SMI_PID, \
.subvendor = _subvend, .subdevice = _subdev, \
.driver_data = (unsigned long)&_driverdata }
static const struct pci_device_id smi_id_table[] = {
SMI_ID(0x4254, 0x0550, dvbsky_s950_cfg),
SMI_ID(0x4254, 0x0552, dvbsky_s952_cfg),
SMI_ID(0x4254, 0x5580, dvbsky_t9580_cfg),
SMI_ID(0x13c2, 0x3016, technotrend_s2_4200_cfg),
{0}
};
MODULE_DEVICE_TABLE(pci, smi_id_table);
static struct pci_driver smipcie_driver = {
.name = "SMI PCIe driver",
.id_table = smi_id_table,
.probe = smi_probe,
.remove = smi_remove,
};
module_pci_driver(smipcie_driver);
MODULE_AUTHOR("Max nibble <nibble.max@gmail.com>");
MODULE_DESCRIPTION("SMI PCIe driver");
MODULE_LICENSE("GPL");