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staging: comedi: amplc_dio200: support PCIe215, PCIe236 and PCIe296
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Add preliminary support for the above PCIe boards.  The interrupt
subdevice is not working yet as the boards need some additional
initialization to enable interrupts.  Reserve an unused subdevice that
will eventually become a timer subdevice.

Some unused subdevices have been added between the used subdevices on
the PCIe215 and PCIe236.  This is so the subdevice numbers will match a
pattern-matching feature to be added at a later date, where the
pattern-match specifications for a subdevice include pattern-match
results from other subdevices, specified by index.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Ian Abbott authored and Greg Kroah-Hartman committed Oct 24, 2012
1 parent 34ed78e commit 2421a02
Showing 1 changed file with 140 additions and 38 deletions.
178 changes: 140 additions & 38 deletions drivers/staging/comedi/drivers/amplc_dio200.c
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Original file line number Diff line number Diff line change
Expand Up @@ -29,39 +29,55 @@
* Description: Amplicon 200 Series Digital I/O
* Author: Ian Abbott <abbotti@mev.co.uk>
* Devices: [Amplicon] PC212E (pc212e), PC214E (pc214e), PC215E (pc215e),
* PCI215 (pci215), PC218E (pc218e), PC272E (pc272e), PCI272 (pci272)
* Updated: Wed, 22 Oct 2008 13:36:02 +0100
* PCI215 (pci215), PCIe215 (pcie215), PC218E (pc218e), PCIe236 (pcie236),
* PC272E (pc272e), PCI272 (pci272), PCIe296 (pcie296)
* Updated: Wed, 24 Oct 2012 16:22:34 +0100
* Status: works
*
* Configuration options - PC212E, PC214E, PC215E, PC218E, PC272E:
* [0] - I/O port base address
* [1] - IRQ (optional, but commands won't work without it)
*
* Manual configuration of PCI cards is not supported; they are configured
* Manual configuration of PCI(e) cards is not supported; they are configured
* automatically.
*
* Passing a zero for an option is the same as leaving it unspecified.
*
* SUBDEVICES
*
* PC218E PC212E PC215E/PCI215
* PC212E PC214E PC215E/PCI215
* ------------- ------------- -------------
* Subdevices 7 6 5
* 0 CTR-X1 PPI-X PPI-X
* 1 CTR-X2 CTR-Y1 PPI-Y
* 2 CTR-Y1 CTR-Y2 CTR-Z1
* 3 CTR-Y2 CTR-Z1 CTR-Z2
* 4 CTR-Z1 CTR-Z2 INTERRUPT
* 5 CTR-Z2 INTERRUPT
* 6 INTERRUPT
* Subdevices 6 4 5
* 0 PPI-X PPI-X PPI-X
* 1 CTR-Y1 PPI-Y PPI-Y
* 2 CTR-Y2 CTR-Z1* CTR-Z1
* 3 CTR-Z1 INTERRUPT* CTR-Z2
* 4 CTR-Z2 INTERRUPT
* 5 INTERRUPT
*
* PC214E PC272E/PCI272
* PCIe215 PC218E PCIe236
* ------------- ------------- -------------
* Subdevices 8 7 8
* 0 PPI-X CTR-X1 PPI-X
* 1 UNUSED CTR-X2 UNUSED
* 2 PPI-Y CTR-Y1 UNUSED
* 3 UNUSED CTR-Y2 UNUSED
* 4 CTR-Z1 CTR-Z1 CTR-Z1
* 5 CTR-Z2 CTR-Z2 CTR-Z2
* 6 TIMER INTERRUPT TIMER
* 7 INTERRUPT INTERRUPT
*
* PC272E/PCI272 PCIe296
* ------------- -------------
* Subdevices 4 4
* 0 PPI-X PPI-X
* 1 PPI-Y PPI-Y
* 2 CTR-Z1* PPI-Z
* 3 INTERRUPT* INTERRUPT
* Subdevices 4 8
* 0 PPI-X PPI-X1
* 1 PPI-Y PPI-X2
* 2 PPI-Z PPI-Y1
* 3 INTERRUPT PPI-Y2
* 4 CTR-Z1
* 5 CTR-Z2
* 6 TIMER
* 7 INTERRUPT
*
* Each PPI is a 8255 chip providing 24 DIO channels. The DIO channels
* are configurable as inputs or outputs in four groups:
Expand Down Expand Up @@ -141,6 +157,8 @@
* 3. The counter subdevices are connected in a ring, so the highest
* counter subdevice precedes the lowest.
*
* The 'TIMER' subdevice is a free-running 32-bit timer subdevice.
*
* The 'INTERRUPT' subdevice pretends to be a digital input subdevice. The
* digital inputs come from the interrupt status register. The number of
* channels matches the number of interrupt sources. The PC214E does not
Expand All @@ -149,25 +167,35 @@
*
* INTERRUPT SOURCES
*
* PC218E PC212E PC215E/PCI215
* PC212E PC214E PC215E/PCI215
* ------------- ------------- -------------
* Sources 6 1 6
* 0 PPI-X-C0 JUMPER-J5 PPI-X-C0
* 1 PPI-X-C3 PPI-X-C3
* 2 CTR-Y1-OUT1 PPI-Y-C0
* 3 CTR-Y2-OUT1 PPI-Y-C3
* 4 CTR-Z1-OUT1 CTR-Z1-OUT1
* 5 CTR-Z2-OUT1 CTR-Z2-OUT1
*
* PCIe215 PC218E PCIe236
* ------------- ------------- -------------
* Sources 6 6 6
* 0 CTR-X1-OUT PPI-X-C0 PPI-X-C0
* 1 CTR-X2-OUT PPI-X-C3 PPI-X-C3
* 2 CTR-Y1-OUT CTR-Y1-OUT PPI-Y-C0
* 3 CTR-Y2-OUT CTR-Y2-OUT PPI-Y-C3
* 4 CTR-Z1-OUT CTR-Z1-OUT CTR-Z1-OUT
* 5 CTR-Z2-OUT CTR-Z2-OUT CTR-Z2-OUT
* 0 PPI-X-C0 CTR-X1-OUT1 PPI-X-C0
* 1 PPI-X-C3 CTR-X2-OUT1 PPI-X-C3
* 2 PPI-Y-C0 CTR-Y1-OUT1 unused
* 3 PPI-Y-C3 CTR-Y2-OUT1 unused
* 4 CTR-Z1-OUT1 CTR-Z1-OUT1 CTR-Z1-OUT1
* 5 CTR-Z2-OUT1 CTR-Z2-OUT1 CTR-Z2-OUT1
*
* PC214E PC272E/PCI272
* PC272E/PCI272 PCIe296
* ------------- -------------
* Sources 1 6
* 0 JUMPER-J5 PPI-X-C0
* 1 PPI-X-C3
* 2 PPI-Y-C0
* 3 PPI-Y-C3
* 4 PPI-Z-C0
* 5 PPI-Z-C3
* Sources 6 6
* 0 PPI-X-C0 PPI-X1-C0
* 1 PPI-X-C3 PPI-X1-C3
* 2 PPI-Y-C0 PPI-Y1-C0
* 3 PPI-Y-C3 PPI-Y1-C3
* 4 PPI-Z-C0 CTR-Z1-OUT1
* 5 PPI-Z-C3 CTR-Z2-OUT1
*
* When an interrupt source is enabled in the interrupt source enable
* register, a rising edge on the source signal latches the corresponding
Expand Down Expand Up @@ -218,7 +246,9 @@
#define PCI_VENDOR_ID_AMPLICON 0x14dc
#define PCI_DEVICE_ID_AMPLICON_PCI272 0x000a
#define PCI_DEVICE_ID_AMPLICON_PCI215 0x000b
#define PCI_DEVICE_ID_INVALID 0xffff
#define PCI_DEVICE_ID_AMPLICON_PCIE236 0x0011
#define PCI_DEVICE_ID_AMPLICON_PCIE215 0x0012
#define PCI_DEVICE_ID_AMPLICON_PCIE296 0x0014

/* 8255 control register bits */
#define CR_C_LO_IO 0x01
Expand All @@ -231,6 +261,7 @@

/* 200 series registers */
#define DIO200_IO_SIZE 0x20
#define DIO200_PCIE_IO_SIZE 0x4000
#define DIO200_XCLK_SCE 0x18 /* Group X clock selection register */
#define DIO200_YCLK_SCE 0x19 /* Group Y clock selection register */
#define DIO200_ZCLK_SCE 0x1a /* Group Z clock selection register */
Expand Down Expand Up @@ -285,9 +316,11 @@ enum dio200_bustype { isa_bustype, pci_bustype };
enum dio200_model {
pc212e_model,
pc214e_model,
pc215e_model, pci215_model,
pc215e_model, pci215_model, pcie215_model,
pc218e_model,
pcie236_model,
pc272e_model, pci272_model,
pcie296_model,
};

enum dio200_layout_idx {
Expand All @@ -299,7 +332,12 @@ enum dio200_layout_idx {
#if DO_ISA
pc218_layout,
#endif
pc272_layout
pc272_layout,
#if DO_PCI
pcie215_layout,
pcie236_layout,
pcie296_layout,
#endif
};

struct dio200_board {
Expand Down Expand Up @@ -370,6 +408,36 @@ static const struct dio200_board dio200_boards[] = {
.mainbar = 2,
.mainsize = DIO200_IO_SIZE,
},
{
.name = "pcie215",
.devid = PCI_DEVICE_ID_AMPLICON_PCIE215,
.bustype = pci_bustype,
.model = pcie215_model,
.layout = pcie215_layout,
.mainbar = 1,
.mainshift = 3,
.mainsize = DIO200_PCIE_IO_SIZE,
},
{
.name = "pcie236",
.devid = PCI_DEVICE_ID_AMPLICON_PCIE236,
.bustype = pci_bustype,
.model = pcie236_model,
.layout = pcie236_layout,
.mainbar = 1,
.mainshift = 3,
.mainsize = DIO200_PCIE_IO_SIZE,
},
{
.name = "pcie296",
.devid = PCI_DEVICE_ID_AMPLICON_PCIE296,
.bustype = pci_bustype,
.model = pcie296_model,
.layout = pcie296_layout,
.mainbar = 1,
.mainshift = 3,
.mainsize = DIO200_PCIE_IO_SIZE,
},
#endif
};

Expand All @@ -378,9 +446,9 @@ static const struct dio200_board dio200_boards[] = {
* layout.
*/

enum dio200_sdtype { sd_none, sd_intr, sd_8255, sd_8254 };
enum dio200_sdtype { sd_none, sd_intr, sd_8255, sd_8254, sd_timer };

#define DIO200_MAX_SUBDEVS 7
#define DIO200_MAX_SUBDEVS 8
#define DIO200_MAX_ISNS 6

struct dio200_layout {
Expand Down Expand Up @@ -442,6 +510,35 @@ static const struct dio200_layout dio200_layouts[] = {
.has_int_sce = 1,
.has_clk_gat_sce = 0,
},
#if DO_PCI
[pcie215_layout] = {
.n_subdevs = 8,
.sdtype = {sd_8255, sd_none, sd_8255, sd_none,
sd_8254, sd_8254, sd_timer, sd_intr},
.sdinfo = {0x00, 0x00, 0x08, 0x00,
0x10, 0x14, 0x00, 0x3F},
.has_int_sce = 1,
.has_clk_gat_sce = 1,
},
[pcie236_layout] = {
.n_subdevs = 8,
.sdtype = {sd_8255, sd_none, sd_none, sd_none,
sd_8254, sd_8254, sd_timer, sd_intr},
.sdinfo = {0x00, 0x00, 0x00, 0x00,
0x10, 0x14, 0x00, 0x3F},
.has_int_sce = 1,
.has_clk_gat_sce = 1,
},
[pcie296_layout] = {
.n_subdevs = 8,
.sdtype = {sd_8255, sd_8255, sd_8255, sd_8255,
sd_8254, sd_8254, sd_timer, sd_intr},
.sdinfo = {0x00, 0x04, 0x08, 0x0C,
0x10, 0x14, 0x00, 0x3F},
.has_int_sce = 1,
.has_clk_gat_sce = 1,
},
#endif
};

/* this structure is for data unique to this hardware driver. If
Expand Down Expand Up @@ -1516,6 +1613,8 @@ static int dio200_common_attach(struct comedi_device *dev, unsigned int irq,
s->type = COMEDI_SUBD_UNUSED;
}
break;
case sd_timer:
/* TODO. Fall-thru to default for now. */
default:
s->type = COMEDI_SUBD_UNUSED;
break;
Expand Down Expand Up @@ -1707,6 +1806,9 @@ static struct comedi_driver amplc_dio200_driver = {
static DEFINE_PCI_DEVICE_TABLE(dio200_pci_table) = {
{ PCI_DEVICE(PCI_VENDOR_ID_AMPLICON, PCI_DEVICE_ID_AMPLICON_PCI215) },
{ PCI_DEVICE(PCI_VENDOR_ID_AMPLICON, PCI_DEVICE_ID_AMPLICON_PCI272) },
{ PCI_DEVICE(PCI_VENDOR_ID_AMPLICON, PCI_DEVICE_ID_AMPLICON_PCIE236) },
{ PCI_DEVICE(PCI_VENDOR_ID_AMPLICON, PCI_DEVICE_ID_AMPLICON_PCIE215) },
{ PCI_DEVICE(PCI_VENDOR_ID_AMPLICON, PCI_DEVICE_ID_AMPLICON_PCIE296) },
{0}
};

Expand Down

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