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authorMatthew Garrett <mjg59@srcf.ucam.org>2009-01-07 21:08:54 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-08 11:31:12 -0500
commit3cab7fd964916a5474dcaeb23b6723fbfb34cc66 (patch)
treebdc3624a1a821e0d93a2abc5aa1c2918ccc4e62b /drivers
parentf06295b44c296c8fb08823a3118468ae343b60f2 (diff)
dcdbas: export functionality for use in other drivers
The dcdbas code allows calls to be made into the firmware on Dell systems. Exporting this to other drivers allows them to implement Dell-specific functionality in a safe way. Signed-off-by: Matthew Garrett <mjg@redhat.com> Cc: Matt Domsch <Matt_Domsch@dell.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/firmware/dcdbas.c9
-rw-r--r--drivers/firmware/dcdbas.h2
2 files changed, 7 insertions, 4 deletions
diff --git a/drivers/firmware/dcdbas.c b/drivers/firmware/dcdbas.c
index 50a071f1c945..777fba48d2d3 100644
--- a/drivers/firmware/dcdbas.c
+++ b/drivers/firmware/dcdbas.c
@@ -238,11 +238,11 @@ static ssize_t host_control_on_shutdown_store(struct device *dev,
238} 238}
239 239
240/** 240/**
241 * smi_request: generate SMI request 241 * dcdbas_smi_request: generate SMI request
242 * 242 *
243 * Called with smi_data_lock. 243 * Called with smi_data_lock.
244 */ 244 */
245static int smi_request(struct smi_cmd *smi_cmd) 245int dcdbas_smi_request(struct smi_cmd *smi_cmd)
246{ 246{
247 cpumask_t old_mask; 247 cpumask_t old_mask;
248 int ret = 0; 248 int ret = 0;
@@ -309,14 +309,14 @@ static ssize_t smi_request_store(struct device *dev,
309 switch (val) { 309 switch (val) {
310 case 2: 310 case 2:
311 /* Raw SMI */ 311 /* Raw SMI */
312 ret = smi_request(smi_cmd); 312 ret = dcdbas_smi_request(smi_cmd);
313 if (!ret) 313 if (!ret)
314 ret = count; 314 ret = count;
315 break; 315 break;
316 case 1: 316 case 1:
317 /* Calling Interface SMI */ 317 /* Calling Interface SMI */
318 smi_cmd->ebx = (u32) virt_to_phys(smi_cmd->command_buffer); 318 smi_cmd->ebx = (u32) virt_to_phys(smi_cmd->command_buffer);
319 ret = smi_request(smi_cmd); 319 ret = dcdbas_smi_request(smi_cmd);
320 if (!ret) 320 if (!ret)
321 ret = count; 321 ret = count;
322 break; 322 break;
@@ -333,6 +333,7 @@ out:
333 mutex_unlock(&smi_data_lock); 333 mutex_unlock(&smi_data_lock);
334 return ret; 334 return ret;
335} 335}
336EXPORT_SYMBOL(dcdbas_smi_request);
336 337
337/** 338/**
338 * host_control_smi: generate host control SMI 339 * host_control_smi: generate host control SMI
diff --git a/drivers/firmware/dcdbas.h b/drivers/firmware/dcdbas.h
index 87bc3417de27..ca3cb0a54ab6 100644
--- a/drivers/firmware/dcdbas.h
+++ b/drivers/firmware/dcdbas.h
@@ -101,5 +101,7 @@ struct apm_cmd {
101 } __attribute__ ((packed)) parameters; 101 } __attribute__ ((packed)) parameters;
102} __attribute__ ((packed)); 102} __attribute__ ((packed));
103 103
104int dcdbas_smi_request(struct smi_cmd *smi_cmd);
105
104#endif /* _DCDBAS_H_ */ 106#endif /* _DCDBAS_H_ */
105 107