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authorLinus Torvalds <torvalds@linux-foundation.org>2011-07-25 22:59:39 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-07-25 22:59:39 -0700
commit184475029a724b6b900d88fc3a5f462a6107d5af (patch)
tree408320b46df221a2424bf94282b1b8e5b7aff7a1 /arch/powerpc/include/asm/hvsi.h
parent3b76eefe0f970c2e19f165d4a1650abc523d10bc (diff)
parentf1f4ee01c0d3dce0e3aa7d04e4332677db7af478 (diff)
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (99 commits) drivers/virt: add missing linux/interrupt.h to fsl_hypervisor.c powerpc/85xx: fix mpic configuration in CAMP mode powerpc: Copy back TIF flags on return from softirq stack powerpc/64: Make server perfmon only built on ppc64 server devices powerpc/pseries: Fix hvc_vio.c build due to recent changes powerpc: Exporting boot_cpuid_phys powerpc: Add CFAR to oops output hvc_console: Add kdb support powerpc/pseries: Fix hvterm_raw_get_chars to accept < 16 chars, fixing xmon powerpc/irq: Quieten irq mapping printks powerpc: Enable lockup and hung task detectors in pseries and ppc64 defeconfigs powerpc: Add mpt2sas driver to pseries and ppc64 defconfig powerpc: Disable IRQs off tracer in ppc64 defconfig powerpc: Sync pseries and ppc64 defconfigs powerpc/pseries/hvconsole: Fix dropped console output hvc_console: Improve tty/console put_chars handling powerpc/kdump: Fix timeout in crash_kexec_wait_realmode powerpc/mm: Fix output of total_ram. powerpc/cpufreq: Add cpufreq driver for Momentum Maple boards powerpc: Correct annotations of pmu registration functions ... Fix up trivial Kconfig/Makefile conflicts in arch/powerpc, drivers, and drivers/cpufreq
Diffstat (limited to 'arch/powerpc/include/asm/hvsi.h')
-rw-r--r--arch/powerpc/include/asm/hvsi.h94
1 files changed, 94 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/hvsi.h b/arch/powerpc/include/asm/hvsi.h
new file mode 100644
index 000000000000..d3f64f361814
--- /dev/null
+++ b/arch/powerpc/include/asm/hvsi.h
@@ -0,0 +1,94 @@
+#ifndef _HVSI_H
+#define _HVSI_H
+
+#define VS_DATA_PACKET_HEADER 0xff
+#define VS_CONTROL_PACKET_HEADER 0xfe
+#define VS_QUERY_PACKET_HEADER 0xfd
+#define VS_QUERY_RESPONSE_PACKET_HEADER 0xfc
+
+/* control verbs */
+#define VSV_SET_MODEM_CTL 1 /* to service processor only */
+#define VSV_MODEM_CTL_UPDATE 2 /* from service processor only */
+#define VSV_CLOSE_PROTOCOL 3
+
+/* query verbs */
+#define VSV_SEND_VERSION_NUMBER 1
+#define VSV_SEND_MODEM_CTL_STATUS 2
+
+/* yes, these masks are not consecutive. */
+#define HVSI_TSDTR 0x01
+#define HVSI_TSCD 0x20
+
+#define HVSI_MAX_OUTGOING_DATA 12
+#define HVSI_VERSION 1
+
+struct hvsi_header {
+ uint8_t type;
+ uint8_t len;
+ uint16_t seqno;
+} __attribute__((packed));
+
+struct hvsi_data {
+ struct hvsi_header hdr;
+ uint8_t data[HVSI_MAX_OUTGOING_DATA];
+} __attribute__((packed));
+
+struct hvsi_control {
+ struct hvsi_header hdr;
+ uint16_t verb;
+ /* optional depending on verb: */
+ uint32_t word;
+ uint32_t mask;
+} __attribute__((packed));
+
+struct hvsi_query {
+ struct hvsi_header hdr;
+ uint16_t verb;
+} __attribute__((packed));
+
+struct hvsi_query_response {
+ struct hvsi_header hdr;
+ uint16_t verb;
+ uint16_t query_seqno;
+ union {
+ uint8_t version;
+ uint32_t mctrl_word;
+ } u;
+} __attribute__((packed));
+
+/* hvsi lib struct definitions */
+#define HVSI_INBUF_SIZE 255
+struct tty_struct;
+struct hvsi_priv {
+ unsigned int inbuf_len; /* data in input buffer */
+ unsigned char inbuf[HVSI_INBUF_SIZE];
+ unsigned int inbuf_cur; /* Cursor in input buffer */
+ unsigned int inbuf_pktlen; /* packet lenght from cursor */
+ atomic_t seqno; /* packet sequence number */
+ unsigned int opened:1; /* driver opened */
+ unsigned int established:1; /* protocol established */
+ unsigned int is_console:1; /* used as a kernel console device */
+ unsigned int mctrl_update:1; /* modem control updated */
+ unsigned short mctrl; /* modem control */
+ struct tty_struct *tty; /* tty structure */
+ int (*get_chars)(uint32_t termno, char *buf, int count);
+ int (*put_chars)(uint32_t termno, const char *buf, int count);
+ uint32_t termno;
+};
+
+/* hvsi lib functions */
+struct hvc_struct;
+extern void hvsilib_init(struct hvsi_priv *pv,
+ int (*get_chars)(uint32_t termno, char *buf, int count),
+ int (*put_chars)(uint32_t termno, const char *buf,
+ int count),
+ int termno, int is_console);
+extern int hvsilib_open(struct hvsi_priv *pv, struct hvc_struct *hp);
+extern void hvsilib_close(struct hvsi_priv *pv, struct hvc_struct *hp);
+extern int hvsilib_read_mctrl(struct hvsi_priv *pv);
+extern int hvsilib_write_mctrl(struct hvsi_priv *pv, int dtr);
+extern void hvsilib_establish(struct hvsi_priv *pv);
+extern int hvsilib_get_chars(struct hvsi_priv *pv, char *buf, int count);
+extern int hvsilib_put_chars(struct hvsi_priv *pv, const char *buf, int count);
+
+#endif /* _HVSI_H */