| Message ID | 1533561432-27034-1-git-send-email-f.suligoi@asem.it |
|---|---|
| State | Awaiting Upstream, archived |
| Delegated to: | David Miller |
| Headers | show |
| Series | [v2] can: sja1000: plx_pci: add support for ASEM CAN raw device | expand |
On 08/06/2018 03:17 PM, Flavio Suligoi wrote: > This patch adds support for ASEM opto-isolated dual channels > CAN raw device (http://www.asem.it) > > Signed-off-by: Flavio Suligoi <f.suligoi@asem.it> > --- > > v2: - renamed ASEM_... constants to reduce space size; > - remove "else" in "plx_pci_reset_asem_dual_can_raw" function to avoid > strings breaking > > drivers/net/can/sja1000/Kconfig | 1 + > drivers/net/can/sja1000/plx_pci.c | 67 ++++++++++++++++++++++++++++++++++++++- > 2 files changed, 67 insertions(+), 1 deletion(-) > > diff --git a/drivers/net/can/sja1000/Kconfig b/drivers/net/can/sja1000/Kconfig > index 1e65cb6..f6dc899 100644 > --- a/drivers/net/can/sja1000/Kconfig > +++ b/drivers/net/can/sja1000/Kconfig > @@ -88,6 +88,7 @@ config CAN_PLX_PCI > - TEWS TECHNOLOGIES TPMC810 card (http://www.tews.com/) > - IXXAT Automation PC-I 04/PCI card (http://www.ixxat.com/) > - Connect Tech Inc. CANpro/104-Plus Opto (CRG001) card (http://www.connecttech.com) > + - ASEM CAN raw - 2 isolated CAN channels (www.asem.it) > > config CAN_TSCAN1 > tristate "TS-CAN1 PC104 boards" > diff --git a/drivers/net/can/sja1000/plx_pci.c b/drivers/net/can/sja1000/plx_pci.c > index f8ff25c..d8dfa06 100644 > --- a/drivers/net/can/sja1000/plx_pci.c > +++ b/drivers/net/can/sja1000/plx_pci.c > @@ -46,7 +46,8 @@ MODULE_SUPPORTED_DEVICE("Adlink PCI-7841/cPCI-7841, " > "esd CAN-PCIe/2000, " > "Connect Tech Inc. CANpro/104-Plus Opto (CRG001), " > "IXXAT PC-I 04/PCI, " > - "ELCUS CAN-200-PCI") > + "ELCUS CAN-200-PCI, " > + "ASEM DUAL CAN-RAW") > MODULE_LICENSE("GPL v2"); > > #define PLX_PCI_MAX_CHAN 2 > @@ -70,7 +71,9 @@ struct plx_pci_card { > */ > > #define PLX_LINT1_EN 0x1 /* Local interrupt 1 enable */ > +#define PLX_LINT1_POL (1 << 1) /* Local interrupt 1 polarity */ > #define PLX_LINT2_EN (1 << 3) /* Local interrupt 2 enable */ > +#define PLX_LINT2_POL (1 << 4) /* Local interrupt 1 polarity */ ^^^ 2? > #define PLX_PCI_INT_EN (1 << 6) /* PCI Interrupt Enable */ > #define PLX_PCI_RESET (1 << 30) /* PCI Adapter Software Reset */ > > @@ -92,6 +95,9 @@ struct plx_pci_card { > */ > #define PLX_PCI_OCR (OCR_TX0_PUSHPULL | OCR_TX1_PUSHPULL) > > +/* OCR setting for ASEM Dual CAN raw */ > +#define ASEM_PCI_OCR 0xfe > + > /* > * In the CDR register, you should set CBP to 1. > * You will probably also want to set the clock divider value to 7 > @@ -145,10 +151,20 @@ struct plx_pci_card { > #define MOXA_PCI_VENDOR_ID 0x1393 > #define MOXA_PCI_DEVICE_ID 0x0100 > > +#define ASEM_RAW_CAN_VENDOR_ID 0x10b5 > +#define ASEM_RAW_CAN_DEVICE_ID 0x9030 > +#define ASEM_RAW_CAN_SUB_VENDOR_ID 0x3000 > +#define ASEM_RAW_CAN_SUB_DEVICE_ID 0x1001 > +#define ASEM_RAW_CAN_SUB_DEVICE_ID_BIS 0x1002 > +#define ASEM_RAW_CAN_RST_REGISTER 0x54 > +#define ASEM_RAW_CAN_RST_MASK_CAN1 0x20 > +#define ASEM_RAW_CAN_RST_MASK_CAN2 0x04 > + > static void plx_pci_reset_common(struct pci_dev *pdev); > static void plx9056_pci_reset_common(struct pci_dev *pdev); > static void plx_pci_reset_marathon_pci(struct pci_dev *pdev); > static void plx_pci_reset_marathon_pcie(struct pci_dev *pdev); > +static void plx_pci_reset_asem_dual_can_raw(struct pci_dev *pdev); > > struct plx_pci_channel_map { > u32 bar; > @@ -269,6 +285,14 @@ static struct plx_pci_card_info plx_pci_card_info_moxa = { > /* based on PLX9052 */ > }; > > +static struct plx_pci_card_info plx_pci_card_info_asem_dual_can = { > + "ASEM Dual CAN raw PCI", 2, > + PLX_PCI_CAN_CLOCK, ASEM_PCI_OCR, PLX_PCI_CDR, > + {0, 0x00, 0x00}, { {2, 0x00, 0x00}, {4, 0x00, 0x00} }, > + &plx_pci_reset_asem_dual_can_raw > + /* based on PLX9030 */ > +}; > + > static const struct pci_device_id plx_pci_tbl[] = { > { > /* Adlink PCI-7841/cPCI-7841 */ > @@ -375,6 +399,20 @@ static const struct pci_device_id plx_pci_tbl[] = { > 0, 0, > (kernel_ulong_t)&plx_pci_card_info_moxa > }, > + { > + /* ASEM Dual CAN raw */ > + ASEM_RAW_CAN_VENDOR_ID, ASEM_RAW_CAN_DEVICE_ID, > + ASEM_RAW_CAN_SUB_VENDOR_ID, ASEM_RAW_CAN_SUB_DEVICE_ID, > + 0, 0, > + (kernel_ulong_t)&plx_pci_card_info_asem_dual_can > + }, > + { > + /* ASEM Dual CAN raw -new model */ > + ASEM_RAW_CAN_VENDOR_ID, ASEM_RAW_CAN_DEVICE_ID, > + ASEM_RAW_CAN_SUB_VENDOR_ID, ASEM_RAW_CAN_SUB_DEVICE_ID_BIS, > + 0, 0, > + (kernel_ulong_t)&plx_pci_card_info_asem_dual_can > + }, > { 0,} > }; > MODULE_DEVICE_TABLE(pci, plx_pci_tbl); > @@ -524,6 +562,33 @@ static void plx_pci_reset_marathon_pcie(struct pci_dev *pdev) > } > } > > +/* Special reset function for ASEM Dual CAN raw card */ > +static void plx_pci_reset_asem_dual_can_raw(struct pci_dev *pdev) > +{ > + void __iomem *bar0_addr; > + static const int reset_bar; > + u8 tmpval; > + > + plx_pci_reset_common(pdev); > + > + bar0_addr = pci_iomap(pdev, reset_bar, 0); > + if (!bar0_addr) { > + dev_err(&pdev->dev, "Failed to remap reset " > + "space %d (BAR%d)\n", 0, reset_bar); Please put the string into just one line. > + return; > + } > + > + /* reset the two SJA1000 chips */ > + tmpval = ioread8(bar0_addr + ASEM_RAW_CAN_RST_REGISTER); > + tmpval &= ~(ASEM_RAW_CAN_RST_MASK_CAN1 | ASEM_RAW_CAN_RST_MASK_CAN2); > + iowrite8(tmpval, bar0_addr + ASEM_RAW_CAN_RST_REGISTER); > + usleep_range(300, 400); > + tmpval |= ASEM_RAW_CAN_RST_MASK_CAN1 | ASEM_RAW_CAN_RST_MASK_CAN2; > + iowrite8(tmpval, bar0_addr + ASEM_RAW_CAN_RST_REGISTER); > + usleep_range(300, 400); > + pci_iounmap(pdev, bar0_addr); > +} > + > static void plx_pci_del_card(struct pci_dev *pdev) > { > struct plx_pci_card *card = pci_get_drvdata(pdev); > Marc
diff --git a/drivers/net/can/sja1000/Kconfig b/drivers/net/can/sja1000/Kconfig index 1e65cb6..f6dc899 100644 --- a/drivers/net/can/sja1000/Kconfig +++ b/drivers/net/can/sja1000/Kconfig @@ -88,6 +88,7 @@ config CAN_PLX_PCI - TEWS TECHNOLOGIES TPMC810 card (http://www.tews.com/) - IXXAT Automation PC-I 04/PCI card (http://www.ixxat.com/) - Connect Tech Inc. CANpro/104-Plus Opto (CRG001) card (http://www.connecttech.com) + - ASEM CAN raw - 2 isolated CAN channels (www.asem.it) config CAN_TSCAN1 tristate "TS-CAN1 PC104 boards" diff --git a/drivers/net/can/sja1000/plx_pci.c b/drivers/net/can/sja1000/plx_pci.c index f8ff25c..d8dfa06 100644 --- a/drivers/net/can/sja1000/plx_pci.c +++ b/drivers/net/can/sja1000/plx_pci.c @@ -46,7 +46,8 @@ MODULE_SUPPORTED_DEVICE("Adlink PCI-7841/cPCI-7841, " "esd CAN-PCIe/2000, " "Connect Tech Inc. CANpro/104-Plus Opto (CRG001), " "IXXAT PC-I 04/PCI, " - "ELCUS CAN-200-PCI") + "ELCUS CAN-200-PCI, " + "ASEM DUAL CAN-RAW") MODULE_LICENSE("GPL v2"); #define PLX_PCI_MAX_CHAN 2 @@ -70,7 +71,9 @@ struct plx_pci_card { */ #define PLX_LINT1_EN 0x1 /* Local interrupt 1 enable */ +#define PLX_LINT1_POL (1 << 1) /* Local interrupt 1 polarity */ #define PLX_LINT2_EN (1 << 3) /* Local interrupt 2 enable */ +#define PLX_LINT2_POL (1 << 4) /* Local interrupt 1 polarity */ #define PLX_PCI_INT_EN (1 << 6) /* PCI Interrupt Enable */ #define PLX_PCI_RESET (1 << 30) /* PCI Adapter Software Reset */ @@ -92,6 +95,9 @@ struct plx_pci_card { */ #define PLX_PCI_OCR (OCR_TX0_PUSHPULL | OCR_TX1_PUSHPULL) +/* OCR setting for ASEM Dual CAN raw */ +#define ASEM_PCI_OCR 0xfe + /* * In the CDR register, you should set CBP to 1. * You will probably also want to set the clock divider value to 7 @@ -145,10 +151,20 @@ struct plx_pci_card { #define MOXA_PCI_VENDOR_ID 0x1393 #define MOXA_PCI_DEVICE_ID 0x0100 +#define ASEM_RAW_CAN_VENDOR_ID 0x10b5 +#define ASEM_RAW_CAN_DEVICE_ID 0x9030 +#define ASEM_RAW_CAN_SUB_VENDOR_ID 0x3000 +#define ASEM_RAW_CAN_SUB_DEVICE_ID 0x1001 +#define ASEM_RAW_CAN_SUB_DEVICE_ID_BIS 0x1002 +#define ASEM_RAW_CAN_RST_REGISTER 0x54 +#define ASEM_RAW_CAN_RST_MASK_CAN1 0x20 +#define ASEM_RAW_CAN_RST_MASK_CAN2 0x04 + static void plx_pci_reset_common(struct pci_dev *pdev); static void plx9056_pci_reset_common(struct pci_dev *pdev); static void plx_pci_reset_marathon_pci(struct pci_dev *pdev); static void plx_pci_reset_marathon_pcie(struct pci_dev *pdev); +static void plx_pci_reset_asem_dual_can_raw(struct pci_dev *pdev); struct plx_pci_channel_map { u32 bar; @@ -269,6 +285,14 @@ static struct plx_pci_card_info plx_pci_card_info_moxa = { /* based on PLX9052 */ }; +static struct plx_pci_card_info plx_pci_card_info_asem_dual_can = { + "ASEM Dual CAN raw PCI", 2, + PLX_PCI_CAN_CLOCK, ASEM_PCI_OCR, PLX_PCI_CDR, + {0, 0x00, 0x00}, { {2, 0x00, 0x00}, {4, 0x00, 0x00} }, + &plx_pci_reset_asem_dual_can_raw + /* based on PLX9030 */ +}; + static const struct pci_device_id plx_pci_tbl[] = { { /* Adlink PCI-7841/cPCI-7841 */ @@ -375,6 +399,20 @@ static const struct pci_device_id plx_pci_tbl[] = { 0, 0, (kernel_ulong_t)&plx_pci_card_info_moxa }, + { + /* ASEM Dual CAN raw */ + ASEM_RAW_CAN_VENDOR_ID, ASEM_RAW_CAN_DEVICE_ID, + ASEM_RAW_CAN_SUB_VENDOR_ID, ASEM_RAW_CAN_SUB_DEVICE_ID, + 0, 0, + (kernel_ulong_t)&plx_pci_card_info_asem_dual_can + }, + { + /* ASEM Dual CAN raw -new model */ + ASEM_RAW_CAN_VENDOR_ID, ASEM_RAW_CAN_DEVICE_ID, + ASEM_RAW_CAN_SUB_VENDOR_ID, ASEM_RAW_CAN_SUB_DEVICE_ID_BIS, + 0, 0, + (kernel_ulong_t)&plx_pci_card_info_asem_dual_can + }, { 0,} }; MODULE_DEVICE_TABLE(pci, plx_pci_tbl); @@ -524,6 +562,33 @@ static void plx_pci_reset_marathon_pcie(struct pci_dev *pdev) } } +/* Special reset function for ASEM Dual CAN raw card */ +static void plx_pci_reset_asem_dual_can_raw(struct pci_dev *pdev) +{ + void __iomem *bar0_addr; + static const int reset_bar; + u8 tmpval; + + plx_pci_reset_common(pdev); + + bar0_addr = pci_iomap(pdev, reset_bar, 0); + if (!bar0_addr) { + dev_err(&pdev->dev, "Failed to remap reset " + "space %d (BAR%d)\n", 0, reset_bar); + return; + } + + /* reset the two SJA1000 chips */ + tmpval = ioread8(bar0_addr + ASEM_RAW_CAN_RST_REGISTER); + tmpval &= ~(ASEM_RAW_CAN_RST_MASK_CAN1 | ASEM_RAW_CAN_RST_MASK_CAN2); + iowrite8(tmpval, bar0_addr + ASEM_RAW_CAN_RST_REGISTER); + usleep_range(300, 400); + tmpval |= ASEM_RAW_CAN_RST_MASK_CAN1 | ASEM_RAW_CAN_RST_MASK_CAN2; + iowrite8(tmpval, bar0_addr + ASEM_RAW_CAN_RST_REGISTER); + usleep_range(300, 400); + pci_iounmap(pdev, bar0_addr); +} + static void plx_pci_del_card(struct pci_dev *pdev) { struct plx_pci_card *card = pci_get_drvdata(pdev);
This patch adds support for ASEM opto-isolated dual channels CAN raw device (http://www.asem.it) Signed-off-by: Flavio Suligoi <f.suligoi@asem.it> --- v2: - renamed ASEM_... constants to reduce space size; - remove "else" in "plx_pci_reset_asem_dual_can_raw" function to avoid strings breaking drivers/net/can/sja1000/Kconfig | 1 + drivers/net/can/sja1000/plx_pci.c | 67 ++++++++++++++++++++++++++++++++++++++- 2 files changed, 67 insertions(+), 1 deletion(-)