diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/media/pci/smipcie/smipcie-main.c | 1124 |
1 files changed, 1124 insertions, 0 deletions
diff --git a/drivers/media/pci/smipcie/smipcie-main.c b/drivers/media/pci/smipcie/smipcie-main.c new file mode 100644 index 000000000..0c300d019 --- /dev/null +++ b/drivers/media/pci/smipcie/smipcie-main.c @@ -0,0 +1,1124 @@ +// 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]) { + 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]) { + 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) { + 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) { + 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? */ + 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"); |