exact same (subsystem) device and vendor IDs. However, the reference
design for the OXu16PCI954 uses a 14.7456 MHz clock (as does the EXSYS
EX-41098-2 equipped with these), while at least the OX16PCI954 defaults
to a 1.8432 MHz one. According to the datasheets of these chips, the
only difference in PCI configuration space is that OXu16PCI954 have
a revision ID of 1 while the other two are at 0. So employ the latter
for determining the default clock rates of this family.
Note that one might think that the actual clock could be derived from
the Clock Prescaler Register (CPR) of these chips. Unfortunately, this
is not that case and its use and content are orthogonal to the frequency
of the crystal employed.
Tested with an EXSYS EX-41098-2, which identifies and attaches as:
pcib4@pci0:19:0:0: class=0x060400 card=0x02dd1014 chip=0x10801b21
rev=0x03 hdr=0x01
vendor = 'ASMedia Technology Inc.'
device = 'ASM1083/1085 PCIe to PCI Bridge'
class = bridge
subclass = PCI-PCI
puc0@pci0:20:4:0: class=0x070006 card=0x00001415 chip=0x95011415
rev=0x01 hdr=0x00
vendor = 'Oxford Semiconductor Ltd'
device = 'OX16PCI954 (Quad 16950 UART) function 0 (Uart)'
class = simple comms
subclass = UART
puc1@pci0:20:4:1: class=0x068000 card=0x00001415 chip=0x95111415
rev=0x01 hdr=0x00
vendor = 'Oxford Semiconductor Ltd'
device = 'OX16PCI954 (Quad 16950 UART) function 1 (8bit bus)'
class = bridge
puc2@pci0:20:8:0: class=0x070006 card=0x00001415 chip=0x95011415
rev=0x01 hdr=0x00
vendor = 'Oxford Semiconductor Ltd'
device = 'OX16PCI954 (Quad 16950 UART) function 0 (Uart)'
class = simple comms
subclass = UART
puc3@pci0:20:8:1: class=0x068000 card=0x00001415 chip=0x95111415
rev=0x01 hdr=0x00
vendor = 'Oxford Semiconductor Ltd'
device = 'OX16PCI954 (Quad 16950 UART) function 1 (8bit bus)'
class = bridge
pci20: <ACPI PCI bus> on pcib4
puc0: <Oxford Semiconductor OX16PCI954 UARTs> port 0x5000-0x501f,
0x5020-0x503f mem 0xc6000000-0xc6000fff,0xc6001000-0xc6001fff irq 16 at
device 4.0 on pci20
uart1: <16950 or compatible> at port 1 on puc0
uart2: <16950 or compatible> at port 2 on puc0
uart3: <16950 or compatible> at port 3 on puc0
uart4: <16950 or compatible> at port 4 on puc0
puc1: <Oxford Semiconductor OX9160/OX16PCI954 UARTs (function 1)> port
0x5040-0x505f,0x5060-0x507f mem 0xc6002000-0xc6002fff,0xc6003000-0xc6003fff
irq 16 at device 4.1 on pci20
puc2: <Oxford Semiconductor OX16PCI954 UARTs> port 0x5080-0x509f,
0x50a0-0x50bf mem 0xc6004000-0xc6004fff,0xc6005000-0xc6005fff irq 16 at
device 8.0 on pci20
uart5: <16950 or compatible> at port 1 on puc2
uart6: <16950 or compatible> at port 2 on puc2
uart7: <16950 or compatible> at port 3 on puc2
uart8: <16950 or compatible> at port 4 on puc2
puc3: <Oxford Semiconductor OX9160/OX16PCI954 UARTs (function 1)> port
0x50c0-0x50df,0x50e0-0x50ff mem 0xc6006000-0xc6006fff,0xc6007000-0xc6007fff
irq 16 at device 8.1 on pci20
MFC after: 2 weeks
to specify the offset into the PCI memory spare at which each serial port
will find its registers. This was already done for other Exar PCI serial
devices; it was accidentally omitted for this specific device.
Sponsored by: Sandvine Incorporated
MFC after: 1 week
neither DEFAULT_RCLK * 2 nor DEFAULT_RCLK * 10 but plain DEFAULT_RCLK
and there's no (open) source indicating otherwise. This was tested with
an EXSYS EX-41098-2, whose clock is not configurable and identifies as:
puc0@pci0:5:1:0: class=0x070200 card=0x06711415 chip=0x95381415 rev=0x01 hdr=0x00
vendor = 'Oxford Semiconductor Ltd'
class = simple comms
subclass = multiport serial
Note that this exactly matches the card mentioned in PR 129665 so no
sub-device/sub-vendor based quirking of the latter is possible. So maybe
we should grow some sort of tunable, in case non-default cards such as
the latter aren't configurable either (this also wouldn't be the first
time an allegedly tested commit turns out to be wrong though).
- Make the TiMedia tables const.
MFC after: 1 week
serial devices (such as printer ports). This allows ppc devices attached
to puc to correctly setup an interrupt handler and work.
Tested by: Andre Albsmeier Andre.Albsmeier@siemens.com
MFC after: 1 week
one. Interestingly, these are actually the default for quite some time
(bus_generic_driver_added(9) since r52045 and bus_generic_print_child(9)
since r52045) but even recently added device drivers do this unnecessarily.
Discussed with: jhb, marcel
- While at it, use DEVMETHOD_END.
Discussed with: jhb
- Also while at it, use __FBSDID.
announced during boot and contains the port number. The pnpinfo string
lists the port type (PUC_TYPE_* constants).
Tested by: Boris Samorodov bsam ipt ru
MFC after: 1 week
real owner of the device ID. Also rename the associated config
function while here.
- Add support for the 2-port and 4-port Exar parts as well: Exar XR17C/D152
and Exar XR17C154.
Tested by: Mike Tancsa, Willy Offermans Willy of offermans rompen nl
MFC after: 1 week
which uses a non-standard clock (* 8) while any additional ports use
SUN1699 chips which use a standard clock.
Tested by: N.J. Mann njm of njm me uk
MFC after: 1 week
Oxford Semiconductor OX16PCI954 but uses only two ports with a non-default
clock rate.
PR: kern/152034
Tested by: Hans Fiedler hans of hermes louisville edu
MFC after: 1 week
For these devices, the number of supported ports is read from a register
in BAR 0.
PR: kern/134878
Submitted by: David Wood david of wood2 org uk
MFC after: 1 week
The rewrite of the interrupt handler includes:
o loop until all pending interrupts are handled. This closes a
race condition.
o count the number of interrupt sources we handled so that we can
properly return FILTER_HANDLED or FILTER_STRAY when we break out
of the loop.
o When matching the interrupt source to the devices that have that
source pending, check only from the set of devices we found to
have a pending interrupt.
PR: kern/140947
MFC after: 3 days
entry is a specific entry to override the generic NetMos entry so that
puc(4) will leave this device alone and let uart(4) claim it.
Submitted by: Navdeep Parhar nparhar @ gmail
Reviewed by: marcel
MFC after: 1 week
Note, that the patch provided with this card for the Linux states that
the card uses DEFAULT_RCLK * 2, while in fact it is '* 10'. So probably
we should also use the subdevice/subvendord here. For now just ignore
that fact.
PR: kern/129665
Submitted by: bsam
Obtained from: united efforst with bsam
clocked at 10x normal speed. That is, when you set it for 9600
baud, it actually does 96000 baud. In order to make it plug and
play with other serial ports, it has to have its clock rate
reduced by a factor of 10.
Discussed with: Marcel Moolenaar
MFC after: 2 weeks
so the index needs to be translated into an offset. While we
did add the offset (0x10), we forgot to account for the width.
Tested by: Thomas Vogt
MFC after: 3 days
