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author | 2023-02-21 18:24:12 -0800 | |
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committer | 2023-02-21 18:24:12 -0800 | |
commit | 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch) | |
tree | cc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/block/paride/ppc6lnx.c | |
download | linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip |
Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
Pull networking updates from Jakub Kicinski:
"Core:
- Add dedicated kmem_cache for typical/small skb->head, avoid having
to access struct page at kfree time, and improve memory use.
- Introduce sysctl to set default RPS configuration for new netdevs.
- Define Netlink protocol specification format which can be used to
describe messages used by each family and auto-generate parsers.
Add tools for generating kernel data structures and uAPI headers.
- Expose all net/core sysctls inside netns.
- Remove 4s sleep in netpoll if carrier is instantly detected on
boot.
- Add configurable limit of MDB entries per port, and port-vlan.
- Continue populating drop reasons throughout the stack.
- Retire a handful of legacy Qdiscs and classifiers.
Protocols:
- Support IPv4 big TCP (TSO frames larger than 64kB).
- Add IP_LOCAL_PORT_RANGE socket option, to control local port range
on socket by socket basis.
- Track and report in procfs number of MPTCP sockets used.
- Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
manager.
- IPv6: don't check net.ipv6.route.max_size and rely on garbage
collection to free memory (similarly to IPv4).
- Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).
- ICMP: add per-rate limit counters.
- Add support for user scanning requests in ieee802154.
- Remove static WEP support.
- Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
reporting.
- WiFi 7 EHT channel puncturing support (client & AP).
BPF:
- Add a rbtree data structure following the "next-gen data structure"
precedent set by recently added linked list, that is, by using
kfunc + kptr instead of adding a new BPF map type.
- Expose XDP hints via kfuncs with initial support for RX hash and
timestamp metadata.
- Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
better support decap on GRE tunnel devices not operating in collect
metadata.
- Improve x86 JIT's codegen for PROBE_MEM runtime error checks.
- Remove the need for trace_printk_lock for bpf_trace_printk and
bpf_trace_vprintk helpers.
- Extend libbpf's bpf_tracing.h support for tracing arguments of
kprobes/uprobes and syscall as a special case.
- Significantly reduce the search time for module symbols by
livepatch and BPF.
- Enable cpumasks to be used as kptrs, which is useful for tracing
programs tracking which tasks end up running on which CPUs in
different time intervals.
- Add support for BPF trampoline on s390x and riscv64.
- Add capability to export the XDP features supported by the NIC.
- Add __bpf_kfunc tag for marking kernel functions as kfuncs.
- Add cgroup.memory=nobpf kernel parameter option to disable BPF
memory accounting for container environments.
Netfilter:
- Remove the CLUSTERIP target. It has been marked as obsolete for
years, and we still have WARN splats wrt races of the out-of-band
/proc interface installed by this target.
- Add 'destroy' commands to nf_tables. They are identical to the
existing 'delete' commands, but do not return an error if the
referenced object (set, chain, rule...) did not exist.
Driver API:
- Improve cpumask_local_spread() locality to help NICs set the right
IRQ affinity on AMD platforms.
- Separate C22 and C45 MDIO bus transactions more clearly.
- Introduce new DCB table to control DSCP rewrite on egress.
- Support configuration of Physical Layer Collision Avoidance (PLCA)
Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
shared medium Ethernet.
- Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
preemption of low priority frames by high priority frames.
- Add support for controlling MACSec offload using netlink SET.
- Rework devlink instance refcounts to allow registration and
de-registration under the instance lock. Split the code into
multiple files, drop some of the unnecessarily granular locks and
factor out common parts of netlink operation handling.
- Add TX frame aggregation parameters (for USB drivers).
- Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
messages with notifications for debug.
- Allow offloading of UDP NEW connections via act_ct.
- Add support for per action HW stats in TC.
- Support hardware miss to TC action (continue processing in SW from
a specific point in the action chain).
- Warn if old Wireless Extension user space interface is used with
modern cfg80211/mac80211 drivers. Do not support Wireless
Extensions for Wi-Fi 7 devices at all. Everyone should switch to
using nl80211 interface instead.
- Improve the CAN bit timing configuration. Use extack to return
error messages directly to user space, update the SJW handling,
including the definition of a new default value that will benefit
CAN-FD controllers, by increasing their oscillator tolerance.
New hardware / drivers:
- Ethernet:
- nVidia BlueField-3 support (control traffic driver)
- Ethernet support for imx93 SoCs
- Motorcomm yt8531 gigabit Ethernet PHY
- onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
- Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
- Amlogic gxl MDIO mux
- WiFi:
- RealTek RTL8188EU (rtl8xxxu)
- Qualcomm Wi-Fi 7 devices (ath12k)
- CAN:
- Renesas R-Car V4H
Drivers:
- Bluetooth:
- Set Per Platform Antenna Gain (PPAG) for Intel controllers.
- Ethernet NICs:
- Intel (1G, igc):
- support TSN / Qbv / packet scheduling features of i226 model
- Intel (100G, ice):
- use GNSS subsystem instead of TTY
- multi-buffer XDP support
- extend support for GPIO pins to E823 devices
- nVidia/Mellanox:
- update the shared buffer configuration on PFC commands
- implement PTP adjphase function for HW offset control
- TC support for Geneve and GRE with VF tunnel offload
- more efficient crypto key management method
- multi-port eswitch support
- Netronome/Corigine:
- add DCB IEEE support
- support IPsec offloading for NFP3800
- Freescale/NXP (enetc):
- support XDP_REDIRECT for XDP non-linear buffers
- improve reconfig, avoid link flap and waiting for idle
- support MAC Merge layer
- Other NICs:
- sfc/ef100: add basic devlink support for ef100
- ionic: rx_push mode operation (writing descriptors via MMIO)
- bnxt: use the auxiliary bus abstraction for RDMA
- r8169: disable ASPM and reset bus in case of tx timeout
- cpsw: support QSGMII mode for J721e CPSW9G
- cpts: support pulse-per-second output
- ngbe: add an mdio bus driver
- usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
- r8152: handle devices with FW with NCM support
- amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
- virtio-net: support multi buffer XDP
- virtio/vsock: replace virtio_vsock_pkt with sk_buff
- tsnep: XDP support
- Ethernet high-speed switches:
- nVidia/Mellanox (mlxsw):
- add support for latency TLV (in FW control messages)
- Microchip (sparx5):
- separate explicit and implicit traffic forwarding rules, make
the implicit rules always active
- add support for egress DSCP rewrite
- IS0 VCAP support (Ingress Classification)
- IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
etc.)
- ES2 VCAP support (Egress Access Control)
- support for Per-Stream Filtering and Policing (802.1Q,
8.6.5.1)
- Ethernet embedded switches:
- Marvell (mv88e6xxx):
- add MAB (port auth) offload support
- enable PTP receive for mv88e6390
- NXP (ocelot):
- support MAC Merge layer
- support for the the vsc7512 internal copper phys
- Microchip:
- lan9303: convert to PHYLINK
- lan966x: support TC flower filter statistics
- lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
- lan937x: support Credit Based Shaper configuration
- ksz9477: support Energy Efficient Ethernet
- other:
- qca8k: convert to regmap read/write API, use bulk operations
- rswitch: Improve TX timestamp accuracy
- Intel WiFi (iwlwifi):
- EHT (Wi-Fi 7) rate reporting
- STEP equalizer support: transfer some STEP (connection to radio
on platforms with integrated wifi) related parameters from the
BIOS to the firmware.
- Qualcomm 802.11ax WiFi (ath11k):
- IPQ5018 support
- Fine Timing Measurement (FTM) responder role support
- channel 177 support
- MediaTek WiFi (mt76):
- per-PHY LED support
- mt7996: EHT (Wi-Fi 7) support
- Wireless Ethernet Dispatch (WED) reset support
- switch to using page pool allocator
- RealTek WiFi (rtw89):
- support new version of Bluetooth co-existance
- Mobile:
- rmnet: support TX aggregation"
* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
page_pool: add a comment explaining the fragment counter usage
net: ethtool: fix __ethtool_dev_mm_supported() implementation
ethtool: pse-pd: Fix double word in comments
xsk: add linux/vmalloc.h to xsk.c
sefltests: netdevsim: wait for devlink instance after netns removal
selftest: fib_tests: Always cleanup before exit
net/mlx5e: Align IPsec ASO result memory to be as required by hardware
net/mlx5e: TC, Set CT miss to the specific ct action instance
net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
net/mlx5: Refactor tc miss handling to a single function
net/mlx5: Kconfig: Make tc offload depend on tc skb extension
net/sched: flower: Support hardware miss to tc action
net/sched: flower: Move filter handle initialization earlier
net/sched: cls_api: Support hardware miss to tc action
net/sched: Rename user cookie and act cookie
sfc: fix builds without CONFIG_RTC_LIB
sfc: clean up some inconsistent indentings
net/mlx4_en: Introduce flexible array to silence overflow warning
net: lan966x: Fix possible deadlock inside PTP
net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
...
Diffstat (limited to 'drivers/block/paride/ppc6lnx.c')
-rw-r--r-- | drivers/block/paride/ppc6lnx.c | 726 |
1 files changed, 726 insertions, 0 deletions
diff --git a/drivers/block/paride/ppc6lnx.c b/drivers/block/paride/ppc6lnx.c new file mode 100644 index 000000000..5e5521d3b --- /dev/null +++ b/drivers/block/paride/ppc6lnx.c @@ -0,0 +1,726 @@ +/* + ppc6lnx.c (c) 2001 Micro Solutions Inc. + Released under the terms of the GNU General Public license + + ppc6lnx.c is a par of the protocol driver for the Micro Solutions + "BACKPACK" parallel port IDE adapter + (Works on Series 6 drives) + +*/ + +//*************************************************************************** + +// PPC 6 Code in C sanitized for LINUX +// Original x86 ASM by Ron, Converted to C by Clive + +//*************************************************************************** + + +#define port_stb 1 +#define port_afd 2 +#define cmd_stb port_afd +#define port_init 4 +#define data_stb port_init +#define port_sel 8 +#define port_int 16 +#define port_dir 0x20 + +#define ECR_EPP 0x80 +#define ECR_BI 0x20 + +//*************************************************************************** + +// 60772 Commands + +#define ACCESS_REG 0x00 +#define ACCESS_PORT 0x40 + +#define ACCESS_READ 0x00 +#define ACCESS_WRITE 0x20 + +// 60772 Command Prefix + +#define CMD_PREFIX_SET 0xe0 // Special command that modifies the next command's operation +#define CMD_PREFIX_RESET 0xc0 // Resets current cmd modifier reg bits + #define PREFIX_IO16 0x01 // perform 16-bit wide I/O + #define PREFIX_FASTWR 0x04 // enable PPC mode fast-write + #define PREFIX_BLK 0x08 // enable block transfer mode + +// 60772 Registers + +#define REG_STATUS 0x00 // status register + #define STATUS_IRQA 0x01 // Peripheral IRQA line + #define STATUS_EEPROM_DO 0x40 // Serial EEPROM data bit +#define REG_VERSION 0x01 // PPC version register (read) +#define REG_HWCFG 0x02 // Hardware Config register +#define REG_RAMSIZE 0x03 // Size of RAM Buffer + #define RAMSIZE_128K 0x02 +#define REG_EEPROM 0x06 // EEPROM control register + #define EEPROM_SK 0x01 // eeprom SK bit + #define EEPROM_DI 0x02 // eeprom DI bit + #define EEPROM_CS 0x04 // eeprom CS bit + #define EEPROM_EN 0x08 // eeprom output enable +#define REG_BLKSIZE 0x08 // Block transfer len (24 bit) + +//*************************************************************************** + +typedef struct ppc_storage { + u16 lpt_addr; // LPT base address + u8 ppc_id; + u8 mode; // operating mode + // 0 = PPC Uni SW + // 1 = PPC Uni FW + // 2 = PPC Bi SW + // 3 = PPC Bi FW + // 4 = EPP Byte + // 5 = EPP Word + // 6 = EPP Dword + u8 ppc_flags; + u8 org_data; // original LPT data port contents + u8 org_ctrl; // original LPT control port contents + u8 cur_ctrl; // current control port contents +} Interface; + +//*************************************************************************** + +// ppc_flags + +#define fifo_wait 0x10 + +//*************************************************************************** + +// DONT CHANGE THESE LEST YOU BREAK EVERYTHING - BIT FIELD DEPENDENCIES + +#define PPCMODE_UNI_SW 0 +#define PPCMODE_UNI_FW 1 +#define PPCMODE_BI_SW 2 +#define PPCMODE_BI_FW 3 +#define PPCMODE_EPP_BYTE 4 +#define PPCMODE_EPP_WORD 5 +#define PPCMODE_EPP_DWORD 6 + +//*************************************************************************** + +static int ppc6_select(Interface *ppc); +static void ppc6_deselect(Interface *ppc); +static void ppc6_send_cmd(Interface *ppc, u8 cmd); +static void ppc6_wr_data_byte(Interface *ppc, u8 data); +static u8 ppc6_rd_data_byte(Interface *ppc); +static u8 ppc6_rd_port(Interface *ppc, u8 port); +static void ppc6_wr_port(Interface *ppc, u8 port, u8 data); +static void ppc6_rd_data_blk(Interface *ppc, u8 *data, long count); +static void ppc6_wait_for_fifo(Interface *ppc); +static void ppc6_wr_data_blk(Interface *ppc, u8 *data, long count); +static void ppc6_rd_port16_blk(Interface *ppc, u8 port, u8 *data, long length); +static void ppc6_wr_port16_blk(Interface *ppc, u8 port, u8 *data, long length); +static void ppc6_wr_extout(Interface *ppc, u8 regdata); +static int ppc6_open(Interface *ppc); +static void ppc6_close(Interface *ppc); + +//*************************************************************************** + +static int ppc6_select(Interface *ppc) +{ + u8 i, j, k; + + i = inb(ppc->lpt_addr + 1); + + if (i & 1) + outb(i, ppc->lpt_addr + 1); + + ppc->org_data = inb(ppc->lpt_addr); + + ppc->org_ctrl = inb(ppc->lpt_addr + 2) & 0x5F; // readback ctrl + + ppc->cur_ctrl = ppc->org_ctrl; + + ppc->cur_ctrl |= port_sel; + + outb(ppc->cur_ctrl, ppc->lpt_addr + 2); + + if (ppc->org_data == 'b') + outb('x', ppc->lpt_addr); + + outb('b', ppc->lpt_addr); + outb('p', ppc->lpt_addr); + outb(ppc->ppc_id, ppc->lpt_addr); + outb(~ppc->ppc_id,ppc->lpt_addr); + + ppc->cur_ctrl &= ~port_sel; + + outb(ppc->cur_ctrl, ppc->lpt_addr + 2); + + ppc->cur_ctrl = (ppc->cur_ctrl & port_int) | port_init; + + outb(ppc->cur_ctrl, ppc->lpt_addr + 2); + + i = ppc->mode & 0x0C; + + if (i == 0) + i = (ppc->mode & 2) | 1; + + outb(i, ppc->lpt_addr); + + ppc->cur_ctrl |= port_sel; + + outb(ppc->cur_ctrl, ppc->lpt_addr + 2); + + // DELAY + + ppc->cur_ctrl |= port_afd; + + outb(ppc->cur_ctrl, ppc->lpt_addr + 2); + + j = ((i & 0x08) << 4) | ((i & 0x07) << 3); + + k = inb(ppc->lpt_addr + 1) & 0xB8; + + if (j == k) + { + ppc->cur_ctrl &= ~port_afd; + + outb(ppc->cur_ctrl, ppc->lpt_addr + 2); + + k = (inb(ppc->lpt_addr + 1) & 0xB8) ^ 0xB8; + + if (j == k) + { + if (i & 4) // EPP + ppc->cur_ctrl &= ~(port_sel | port_init); + else // PPC/ECP + ppc->cur_ctrl &= ~port_sel; + + outb(ppc->cur_ctrl, ppc->lpt_addr + 2); + + return(1); + } + } + + outb(ppc->org_ctrl, ppc->lpt_addr + 2); + + outb(ppc->org_data, ppc->lpt_addr); + + return(0); // FAIL +} + +//*************************************************************************** + +static void ppc6_deselect(Interface *ppc) +{ + if (ppc->mode & 4) // EPP + ppc->cur_ctrl |= port_init; + else // PPC/ECP + ppc->cur_ctrl |= port_sel; + + outb(ppc->cur_ctrl, ppc->lpt_addr + 2); + + outb(ppc->org_data, ppc->lpt_addr); + + outb((ppc->org_ctrl | port_sel), ppc->lpt_addr + 2); + + outb(ppc->org_ctrl, ppc->lpt_addr + 2); +} + +//*************************************************************************** + +static void ppc6_send_cmd(Interface *ppc, u8 cmd) +{ + switch(ppc->mode) + { + case PPCMODE_UNI_SW : + case PPCMODE_UNI_FW : + case PPCMODE_BI_SW : + case PPCMODE_BI_FW : + { + outb(cmd, ppc->lpt_addr); + + ppc->cur_ctrl ^= cmd_stb; + + outb(ppc->cur_ctrl, ppc->lpt_addr + 2); + + break; + } + + case PPCMODE_EPP_BYTE : + case PPCMODE_EPP_WORD : + case PPCMODE_EPP_DWORD : + { + outb(cmd, ppc->lpt_addr + 3); + + break; + } + } +} + +//*************************************************************************** + +static void ppc6_wr_data_byte(Interface *ppc, u8 data) +{ + switch(ppc->mode) + { + case PPCMODE_UNI_SW : + case PPCMODE_UNI_FW : + case PPCMODE_BI_SW : + case PPCMODE_BI_FW : + { + outb(data, ppc->lpt_addr); + + ppc->cur_ctrl ^= data_stb; + + outb(ppc->cur_ctrl, ppc->lpt_addr + 2); + + break; + } + + case PPCMODE_EPP_BYTE : + case PPCMODE_EPP_WORD : + case PPCMODE_EPP_DWORD : + { + outb(data, ppc->lpt_addr + 4); + + break; + } + } +} + +//*************************************************************************** + +static u8 ppc6_rd_data_byte(Interface *ppc) +{ + u8 data = 0; + + switch(ppc->mode) + { + case PPCMODE_UNI_SW : + case PPCMODE_UNI_FW : + { + ppc->cur_ctrl = (ppc->cur_ctrl & ~port_stb) ^ data_stb; + + outb(ppc->cur_ctrl, ppc->lpt_addr + 2); + + // DELAY + + data = inb(ppc->lpt_addr + 1); + + data = ((data & 0x80) >> 1) | ((data & 0x38) >> 3); + + ppc->cur_ctrl |= port_stb; + + outb(ppc->cur_ctrl, ppc->lpt_addr + 2); + + // DELAY + + data |= inb(ppc->lpt_addr + 1) & 0xB8; + + break; + } + + case PPCMODE_BI_SW : + case PPCMODE_BI_FW : + { + ppc->cur_ctrl |= port_dir; + + outb(ppc->cur_ctrl, ppc->lpt_addr + 2); + + ppc->cur_ctrl = (ppc->cur_ctrl | port_stb) ^ data_stb; + + outb(ppc->cur_ctrl, ppc->lpt_addr + 2); + + data = inb(ppc->lpt_addr); + + ppc->cur_ctrl &= ~port_stb; + + outb(ppc->cur_ctrl,ppc->lpt_addr + 2); + + ppc->cur_ctrl &= ~port_dir; + + outb(ppc->cur_ctrl, ppc->lpt_addr + 2); + + break; + } + + case PPCMODE_EPP_BYTE : + case PPCMODE_EPP_WORD : + case PPCMODE_EPP_DWORD : + { + outb((ppc->cur_ctrl | port_dir),ppc->lpt_addr + 2); + + data = inb(ppc->lpt_addr + 4); + + outb(ppc->cur_ctrl,ppc->lpt_addr + 2); + + break; + } + } + + return(data); +} + +//*************************************************************************** + +static u8 ppc6_rd_port(Interface *ppc, u8 port) +{ + ppc6_send_cmd(ppc,(u8)(port | ACCESS_PORT | ACCESS_READ)); + + return(ppc6_rd_data_byte(ppc)); +} + +//*************************************************************************** + +static void ppc6_wr_port(Interface *ppc, u8 port, u8 data) +{ + ppc6_send_cmd(ppc,(u8)(port | ACCESS_PORT | ACCESS_WRITE)); + + ppc6_wr_data_byte(ppc, data); +} + +//*************************************************************************** + +static void ppc6_rd_data_blk(Interface *ppc, u8 *data, long count) +{ + switch(ppc->mode) + { + case PPCMODE_UNI_SW : + case PPCMODE_UNI_FW : + { + while(count) + { + u8 d; + + ppc->cur_ctrl = (ppc->cur_ctrl & ~port_stb) ^ data_stb; + + outb(ppc->cur_ctrl, ppc->lpt_addr + 2); + + // DELAY + + d = inb(ppc->lpt_addr + 1); + + d = ((d & 0x80) >> 1) | ((d & 0x38) >> 3); + + ppc->cur_ctrl |= port_stb; + + outb(ppc->cur_ctrl, ppc->lpt_addr + 2); + + // DELAY + + d |= inb(ppc->lpt_addr + 1) & 0xB8; + + *data++ = d; + count--; + } + + break; + } + + case PPCMODE_BI_SW : + case PPCMODE_BI_FW : + { + ppc->cur_ctrl |= port_dir; + + outb(ppc->cur_ctrl, ppc->lpt_addr + 2); + + ppc->cur_ctrl |= port_stb; + + while(count) + { + ppc->cur_ctrl ^= data_stb; + + outb(ppc->cur_ctrl, ppc->lpt_addr + 2); + + *data++ = inb(ppc->lpt_addr); + count--; + } + + ppc->cur_ctrl &= ~port_stb; + + outb(ppc->cur_ctrl, ppc->lpt_addr + 2); + + ppc->cur_ctrl &= ~port_dir; + + outb(ppc->cur_ctrl, ppc->lpt_addr + 2); + + break; + } + + case PPCMODE_EPP_BYTE : + { + outb((ppc->cur_ctrl | port_dir), ppc->lpt_addr + 2); + + // DELAY + + while(count) + { + *data++ = inb(ppc->lpt_addr + 4); + count--; + } + + outb(ppc->cur_ctrl, ppc->lpt_addr + 2); + + break; + } + + case PPCMODE_EPP_WORD : + { + outb((ppc->cur_ctrl | port_dir), ppc->lpt_addr + 2); + + // DELAY + + while(count > 1) + { + *((u16 *)data) = inw(ppc->lpt_addr + 4); + data += 2; + count -= 2; + } + + while(count) + { + *data++ = inb(ppc->lpt_addr + 4); + count--; + } + + outb(ppc->cur_ctrl, ppc->lpt_addr + 2); + + break; + } + + case PPCMODE_EPP_DWORD : + { + outb((ppc->cur_ctrl | port_dir),ppc->lpt_addr + 2); + + // DELAY + + while(count > 3) + { + *((u32 *)data) = inl(ppc->lpt_addr + 4); + data += 4; + count -= 4; + } + + while(count) + { + *data++ = inb(ppc->lpt_addr + 4); + count--; + } + + outb(ppc->cur_ctrl, ppc->lpt_addr + 2); + + break; + } + } + +} + +//*************************************************************************** + +static void ppc6_wait_for_fifo(Interface *ppc) +{ + int i; + + if (ppc->ppc_flags & fifo_wait) + { + for(i=0; i<20; i++) + inb(ppc->lpt_addr + 1); + } +} + +//*************************************************************************** + +static void ppc6_wr_data_blk(Interface *ppc, u8 *data, long count) +{ + switch(ppc->mode) + { + case PPCMODE_UNI_SW : + case PPCMODE_BI_SW : + { + while(count--) + { + outb(*data++, ppc->lpt_addr); + + ppc->cur_ctrl ^= data_stb; + + outb(ppc->cur_ctrl, ppc->lpt_addr + 2); + } + + break; + } + + case PPCMODE_UNI_FW : + case PPCMODE_BI_FW : + { + u8 this, last; + + ppc6_send_cmd(ppc,(CMD_PREFIX_SET | PREFIX_FASTWR)); + + ppc->cur_ctrl |= port_stb; + + outb(ppc->cur_ctrl, ppc->lpt_addr + 2); + + last = *data; + + outb(last, ppc->lpt_addr); + + while(count) + { + this = *data++; + count--; + + if (this == last) + { + ppc->cur_ctrl ^= data_stb; + + outb(ppc->cur_ctrl, ppc->lpt_addr + 2); + } + else + { + outb(this, ppc->lpt_addr); + + last = this; + } + } + + ppc->cur_ctrl &= ~port_stb; + + outb(ppc->cur_ctrl, ppc->lpt_addr + 2); + + ppc6_send_cmd(ppc,(CMD_PREFIX_RESET | PREFIX_FASTWR)); + + break; + } + + case PPCMODE_EPP_BYTE : + { + while(count) + { + outb(*data++,ppc->lpt_addr + 4); + count--; + } + + ppc6_wait_for_fifo(ppc); + + break; + } + + case PPCMODE_EPP_WORD : + { + while(count > 1) + { + outw(*((u16 *)data),ppc->lpt_addr + 4); + data += 2; + count -= 2; + } + + while(count) + { + outb(*data++,ppc->lpt_addr + 4); + count--; + } + + ppc6_wait_for_fifo(ppc); + + break; + } + + case PPCMODE_EPP_DWORD : + { + while(count > 3) + { + outl(*((u32 *)data),ppc->lpt_addr + 4); + data += 4; + count -= 4; + } + + while(count) + { + outb(*data++,ppc->lpt_addr + 4); + count--; + } + + ppc6_wait_for_fifo(ppc); + + break; + } + } +} + +//*************************************************************************** + +static void ppc6_rd_port16_blk(Interface *ppc, u8 port, u8 *data, long length) +{ + length = length << 1; + + ppc6_send_cmd(ppc, (REG_BLKSIZE | ACCESS_REG | ACCESS_WRITE)); + ppc6_wr_data_byte(ppc,(u8)length); + ppc6_wr_data_byte(ppc,(u8)(length >> 8)); + ppc6_wr_data_byte(ppc,0); + + ppc6_send_cmd(ppc, (CMD_PREFIX_SET | PREFIX_IO16 | PREFIX_BLK)); + + ppc6_send_cmd(ppc, (u8)(port | ACCESS_PORT | ACCESS_READ)); + + ppc6_rd_data_blk(ppc, data, length); + + ppc6_send_cmd(ppc, (CMD_PREFIX_RESET | PREFIX_IO16 | PREFIX_BLK)); +} + +//*************************************************************************** + +static void ppc6_wr_port16_blk(Interface *ppc, u8 port, u8 *data, long length) +{ + length = length << 1; + + ppc6_send_cmd(ppc, (REG_BLKSIZE | ACCESS_REG | ACCESS_WRITE)); + ppc6_wr_data_byte(ppc,(u8)length); + ppc6_wr_data_byte(ppc,(u8)(length >> 8)); + ppc6_wr_data_byte(ppc,0); + + ppc6_send_cmd(ppc, (CMD_PREFIX_SET | PREFIX_IO16 | PREFIX_BLK)); + + ppc6_send_cmd(ppc, (u8)(port | ACCESS_PORT | ACCESS_WRITE)); + + ppc6_wr_data_blk(ppc, data, length); + + ppc6_send_cmd(ppc, (CMD_PREFIX_RESET | PREFIX_IO16 | PREFIX_BLK)); +} + +//*************************************************************************** + +static void ppc6_wr_extout(Interface *ppc, u8 regdata) +{ + ppc6_send_cmd(ppc,(REG_VERSION | ACCESS_REG | ACCESS_WRITE)); + + ppc6_wr_data_byte(ppc, (u8)((regdata & 0x03) << 6)); +} + +//*************************************************************************** + +static int ppc6_open(Interface *ppc) +{ + int ret; + + ret = ppc6_select(ppc); + + if (ret == 0) + return(ret); + + ppc->ppc_flags &= ~fifo_wait; + + ppc6_send_cmd(ppc, (ACCESS_REG | ACCESS_WRITE | REG_RAMSIZE)); + ppc6_wr_data_byte(ppc, RAMSIZE_128K); + + ppc6_send_cmd(ppc, (ACCESS_REG | ACCESS_READ | REG_VERSION)); + + if ((ppc6_rd_data_byte(ppc) & 0x3F) == 0x0C) + ppc->ppc_flags |= fifo_wait; + + return(ret); +} + +//*************************************************************************** + +static void ppc6_close(Interface *ppc) +{ + ppc6_deselect(ppc); +} + +//*************************************************************************** + |